WO2019022521A2 - 혈관 내 생리활성물질 전달용 조성물 - Google Patents
혈관 내 생리활성물질 전달용 조성물 Download PDFInfo
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- WO2019022521A2 WO2019022521A2 PCT/KR2018/008445 KR2018008445W WO2019022521A2 WO 2019022521 A2 WO2019022521 A2 WO 2019022521A2 KR 2018008445 W KR2018008445 W KR 2018008445W WO 2019022521 A2 WO2019022521 A2 WO 2019022521A2
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- porous silica
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K31/00—Medicinal preparations containing organic active ingredients
- A61K31/70—Carbohydrates; Sugars; Derivatives thereof
- A61K31/7028—Compounds having saccharide radicals attached to non-saccharide compounds by glycosidic linkages
- A61K31/7034—Compounds having saccharide radicals attached to non-saccharide compounds by glycosidic linkages attached to a carbocyclic compound, e.g. phloridzin
- A61K31/704—Compounds having saccharide radicals attached to non-saccharide compounds by glycosidic linkages attached to a carbocyclic compound, e.g. phloridzin attached to a condensed carbocyclic ring system, e.g. sennosides, thiocolchicosides, escin, daunorubicin
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K45/00—Medicinal preparations containing active ingredients not provided for in groups A61K31/00 - A61K41/00
- A61K45/06—Mixtures of active ingredients without chemical characterisation, e.g. antiphlogistics and cardiaca
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K48/00—Medicinal preparations containing genetic material which is inserted into cells of the living body to treat genetic diseases; Gene therapy
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K49/00—Preparations for testing in vivo
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K9/00—Medicinal preparations characterised by special physical form
- A61K9/14—Particulate form, e.g. powders, Processes for size reducing of pure drugs or the resulting products, Pure drug nanoparticles
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K9/00—Medicinal preparations characterised by special physical form
- A61K9/14—Particulate form, e.g. powders, Processes for size reducing of pure drugs or the resulting products, Pure drug nanoparticles
- A61K9/16—Agglomerates; Granulates; Microbeadlets ; Microspheres; Pellets; Solid products obtained by spray drying, spray freeze drying, spray congealing,(multiple) emulsion solvent evaporation or extraction
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L24/00—Surgical adhesives or cements; Adhesives for colostomy devices
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L24/00—Surgical adhesives or cements; Adhesives for colostomy devices
- A61L24/02—Surgical adhesives or cements; Adhesives for colostomy devices containing inorganic materials
Definitions
- the present invention relates to a composition for delivering an intravascular bioactive substance.
- a drug delivery system means a pharmaceutical technology that minimizes adverse effects of existing drugs and maximizes efficacy and efficacy so as to efficiently deliver necessary amounts of drugs such as proteins, nucleic acids, or other small molecules.
- This technology which reduces the cost and time required for the development of new drugs, has recently become a field of advanced technology that creates new added value in medicine by combining with nanotechnology. The company has focused on the development of new drugs and the development of drug delivery systems.
- An object of the present invention is to provide a composition for embolization comprising porous silica particles having biodegradability and sustained release properties.
- a porous silica particle comprising a porous silica particle having a zeta potential of +3 mV or higher or -18 mV or lower,
- the particles are chemically modified on the surface or inside of the pores.
- the particles may be formed such that at least a part of the silanol groups in the surface or the pores are bonded to at least one of aldehyde group, keto group, carbamate group, sulfate group, sulfonate group, amino group, amine group, aminoalkyl group, silyl group, carboxyl group, , An ammonium group, a sulfhydryl group, a phosphate group, an ester group, an imide group, a thioimide group, a keto group, an ether group, an indene group, a sulfonyl group, a methylphosphonate group, a polyethylene glycol group, At least one member selected from the group consisting of an alkyl group of 1 to 30 carbon atoms, a substituted or unsubstituted C 3 to C 30 cycloalkyl group, a substituted or unsubstituted C 6 to C 30 aryl group, and a C 1 to C 30 este
- the particles may be at least partially selected from the group consisting of an amino group, an amine group, a PEG group, a propyl group, an octyl group, a carboxyl group, a thiol group, a sulfonic acid group, a methylphosphonate group and an aldehyde group Lt; / RTI > is substituted with one functional group.
- the particles are 100-1000 nm in diameter.
- the particle has a zeta potential of +3 mV to +100 mV or -100 mV to -18 mV.
- the particles have a volume per gram of 0.7 to 2.2 ml.
- said particles have a t value of 20 or more, wherein the ratio of absorbance of the following formula (1) is 1/2:
- a 0 is the absorbance of the porous silica particles measured by placing 5 ml of the suspension of the porous silica particles at 1 mg / ml in a cylindrical permeable membrane having a pore diameter of 50 kDa,
- a t is the absorbance of the porous silica particles measured after passage of time t from the measurement of A 0 ).
- the particles have a maximum release amount of the supported physiologically active substance of 99 wt% or more.
- physiologically active substance is at least one selected from the group consisting of nucleic acids, nucleotides, proteins, peptides, amino acids, sugars, lipids, compounds, antibodies, antigens, cytokines, growth factors and elements constituting them.
- the physiologically active substance may be at least one selected from the group consisting of doxorubicin, irinotecan, sorafenib, adriamycin, daunomycin, mitomycin, cisplatin, epirubicin, methotrexate, 5-fluorouracil, aclucinomycin, nitrogerm mustard, cyclophosphamide , Dexamethasone, dexamethasone, dexamethasone, dexamethasone, dexamethasone, dexamethasone, dexamethasone, dexamethasone, dexamethasone, dexamethasone, dexamethasone, dexamethasone, dexamethasone, but are not limited to, albumin, abeluxe, bevacizumab, carboplatin, legolapenib, docetaxel, dixyl, zetitib, imatinib mesylate, herceptin,
- composition is released into the target tissue via a catheter.
- composition for embolization comprising any one of compositions 1 to 11 above.
- composition further comprises at least one of a contrast agent and an embolic material.
- the composition may further comprise one or more additives selected from the group consisting of lipiodol, dextran, polyvinyl alcohol, lipiodol, N-butylcyanoacrylate, gel foam, gelatin, ethanol, dextran, silica, Polysodium acrylate vinyl alcohol copolymer, glass particles, poly-L-guluronic alginate, polyglycolic-polyactic acid, polydioxanone, polyglycolic acid-co At least one embolic material selected from the group consisting of polyglycolic acid-co-caprolactone, polypropylene, and porous silica particles having a diameter of at least 10 mu m.
- additives selected from the group consisting of lipiodol, dextran, polyvinyl alcohol, lipiodol, N-butylcyanoacrylate, gel foam, gelatin, ethanol, dextran, silica, Polysodium acrylate vinyl alcohol copolymer, glass particles
- composition of 12 above wherein said composition is released via a catheter to blood vessels directly connected to the tumor.
- composition containing the porous silica particles of the present invention is capable of effectively transferring a physiologically active substance to a target tissue or cells into the bloodstream by modifying the surface thereof to inhibit coagulation and precipitation in the blood.
- composition for embolization comprising the porous silica particles of the present invention has the above-mentioned advantages, besides it has the properties of biodegradability and sustained release, so that it can obtain excellent embolization effect and is excellent in targeting property to target tumor tissues or cells, There is a merit that it is less.
- FIG. 1 is a photomicrograph of a porous silica particle according to one embodiment of the present invention.
- FIG. 2 is a photomicrograph of a porous silica particle according to an embodiment of the present invention.
- FIG. 3 is a microphotograph of a small pore particle during a process for producing porous silica particles according to an embodiment of the present invention.
- FIG. 4 is a micrograph of a small pore particle according to an embodiment of the present invention.
- FIG. 5 is a micrograph of the pore diameter of the porous silica particles according to an embodiment of the present invention.
- the DDV (Degradable Delivery Vehicle) is a particle in the examples. Numbers in parentheses denote particle diameters, and subscripts indicate pore diameters.
- DDV (200) 10 means a particle of an embodiment having a particle diameter of 200 nm and a pore diameter of 10 nm.
- FIG. 6 is a photomicrograph showing the biodegradability of the porous silica particles according to an embodiment of the present invention.
- Figure 7 is a tube with a cylindrical permeable membrane according to one example.
- FIG. 8 shows the results of absorbance reduction with time of the porous silica particles according to an embodiment of the present invention.
- FIG. 9 is a graph showing a result of absorbance reduction of particle size of porous silica particles according to an embodiment of the present invention with time.
- FIG. 10 is a graph showing the results of absorbance reduction of pore diameters of porous silica particles according to an embodiment of the present invention over time.
- FIG. 11 is a graph showing the results of absorbance reduction of pH of the environment of the porous silica particles according to an embodiment of the present invention over time.
- Fig. 13 shows the amount of doxorubicin released under the two conditions of the porous silica particle carrying doxorubicin.
- Fig. 15 is a view showing the sorapenib emission amount of porous silica particles carrying sorapenib.
- 16 is a graph showing the amount of retinoic acid released from the porous silica particle carrying retinoic acid.
- 17 is a graph showing the amount of p53 protein released from the porous silica particle carrying p53 protein.
- Fig. 19 is a graph showing the amount of siRNA released from the porous silica particle carrying the siRNA.
- 20 and 21 are graphs showing pDNA emission amounts of porous silica particles carrying pDNA.
- 22 is a graph showing the linear DNA release of porous silica particles carrying linear DNA.
- FIG. 24 is a chart showing IgG, antibody 1, and antibody 2 released amounts of porous silica particles carrying IgG (A), antibody 1 (B), and antibody 2 (C)
- 25 is a graph showing the amount of RNase released from the porous silica particles carrying RNase.
- 26 is a photograph showing that Cas9 protein is carried on porous silica particles and transferred into cells.
- FIG. 27 is a graph showing the effect of the present invention (B) on the delivery of the siRNA into the porous silica particles and the release of siRNA (A), doxorubicin, siRNA, RNase A and peptide, (C) of the composition of the present invention.
- 29 is a diagram showing the degree of precipitation of the porous silica particles in the blood simulating solution.
- FIG. 30 is a graph showing the erythrocyte hemolysis degree of the modified porous silica particles.
- 31 is a graph showing the erythrocyte hemolysis degree of the unmodified porous silica particles.
- 34 is a diagram showing the particle stability when the porous silica particles and the lipiodol are mixed and emulsified.
- Fig. 35 is a photograph of a naked eye of a rabbit liver removed after embolization using the composition for embolization containing porous silica particles.
- FIG. 36 is a graph showing the index (A) of the composition for embolization comprising the porous silica particles, the index to target cells (B), the slight toxicity to peripheral normal cells (C) (D).
- FIG. 37 is a graph showing the low survival rate (A, B) and the AST and ALT concentrations of hepatocellular carcinoma cells in the rabbit during embolization using embolization compositions comprising porous silica particles, showing no liver toxicity.
- the porous silica particles are silica nanostructures having fine pores of several nanometers to several nanometers in size.
- the regularity of the pore arrangement is well defined and the material properties (pore size, specific surface area, surface characteristics) And is also referred to as Mesoporous Slica Particle.
- the present invention relates to a pharmaceutical composition containing porous silica particles having a zeta potential of not less than +3 mV or not more than -18 mV and carrying a physiologically active substance on the surface or inside of the pores, ≪ / RTI >
- the physiologically active substance is a physiologically active substance / biological function-controlling substance which is carried on the porous silica particles and can transmit activity to the individual to exhibit activity.
- the substance may be a low molecular weight drug, a gene drug, a protein drug, (Natural compounds and / or synthetic compounds), and elements constituting them, which are selected from the group consisting of nucleotides, proteins, peptides, antibodies, antigens, RNA, DNA, PNAs, plasmids, chemicals, enzymes, amino acids, sugars, lipids, At least one of which may be selected from the group consisting of doxorubicin, irinotecan, sorafenib, adriamycin, daunomycin, mitomycin, cisplatin, epirubicin, methotrexate, 5-fluorouracil, acclinomycin, Cyclophosphamide, bleomycin, daunorubicin, vincri
- the bioactive material can be a therapeutic active agent that can provide a direct or indirect, therapeutic, physiological and / or pharmacological effect to a human or animal organism.
- the therapeutically active agent can be, for example, a general medicament, a drug, a prodrug or a target group, or a drug or prodrug comprising a targeting group.
- Such therapeutic active agents include, for example, cardiovascular drugs, especially antihypertensive agents (e.g., calcium channel blockers, or calcium antagonists) and antiarrhythmics; Congestive heart failure drugs; Muscle filling; Vasodilators; ACE inhibitors; diuretic; Deacidylase inhibitors; Heart glycoside; Phosphodiesterase inhibitors; Blockers; beta blockers; Sodium channel blockers; Potassium channel blockers; ?
- -adrenergic agonists Platelet inhibitors; Angiotensin II antagonist; Anticoagulants; Thrombolytic agents; Hemorrhagic agent; Anemia treatment agent; Thrombin inhibitors; Antiparasitic agents; Antimicrobial agents; Anti-inflammatory agents, especially non-steroidal anti-inflammatory agents (NSAIDs), more particularly COX-2 inhibitors; Steroidal anti-inflammatory agents; Prophylactic anti-inflammatory agents; Anti-glaucoma agents; Mast cell stabilizers; Shandong; Drugs that affect the respiratory system; Allergic rhinitis; Alpha-adrenergic antagonists; Corticosteroids; Chronic obstructive lung disease; Acid-oxidase inhibitors; Anti-arthritic agents; Gout remedy; Anxiety drugs and antagonistic drug antagonists; Antimicrobial agent; Antifungal agents; Antigen challenge; helminthic; Antiviral agents, especially respiratory antiviral agents, herpes, cytomegalovirus, human immunodeficiency virus and hepati
- the therapeutically active agent is, for example, erythropoietin (EPO).
- EPO erythropoietin
- Insulin insulin-like growth factors (including IGF-1 and IGF-2), epidermal growth factors (including IGF-1 and IGF-2), cytokines such as thrombopoietin, interleukins (including IL- factor (EGF)), transforming growth factor (including TGF-alpha and TGF-beta), human growth hormone, transferrin, low density lipoprotein, high density lipoprotein lipoprotein), leptin, VEGF, PDGF, ciliary neurotrophic factor, prolactine, adrenocorticotropic hormone (ACTH), calcitonin, human chorionic gonadotropin estrogen, follicle stimulating hormone (FSH), thyroid-stimulating hormone (TSH), luteinizing hormone (LH) hormone, ), Progesterone one, testosterone, toxin including ricine, and the like.
- the therapeutically active agent may be selected from the group of drugs for the treatment of oncological disease and cellular or tissue modification.
- Suitable therapeutic agents include, but are not limited to, alkyl sulphonates such as busulfan, improsulfan, piposulfane, benzodepa, carboquone, meturedepa Alkylating agents such as arizidine, such as uredepa; Ethyleneimine such as altretamine, triethylene melamine, triethylene phosphoramide, triethylene thiophosphoramide, and trimethylolmelamine, and the like, Methylmelamine; But are not limited to, chlorambucil, chlornaphazine, cyclophosphamide, estramustine, ifosfamide, mechlorethamine, mechlorethamine oxide hydro Called nitrogen mustards such as mechlorethaminoxide hydrochloride, melphalan, novembichin, phenesterine, prednimus
- the therapeutically active agent may be selected from the group consisting of aclacinomycin, actinomycin, anthramycin, azaserin, bleomycin, cuctinomycin, carubicin, Carzinophilin, chromomycin, ductinomycin, daunorbicin, 6-diazo-5-oxn (5-oxo) -1-norieucin, doxorubicin, epirubicin, mitomycin, mycophenolsaure, mogalumycin, olivomycin, peplomycin, Plicamycin, porfiromycin, puromycin, streptonigrin, streptozocin, tubercidine, ubenimex, zino (for example, Statins such as zinostatin, zorubicin, aminoglycoside, It may be selected from anti-viral agents and anti-bacterial agents such as the group including the polyene (polyene) or macrolide antibiotics (macrolid-antibiotics), and any combinations thereof
- the therapeutically active agent may be selected from the group consisting of endostatin, angiostatin, interferon, platelet factor 4 (PF4), thrombospondin, transforming growth factor beta, Metalloproteinase -1. -2 and -3 (TIMP-1, -2 and -3), TNP-470, marimastat, neovastatin (TIMP- neovastat, BMS-275291, COL-3, AG3340, thalidomide, squalamine, combrestastatin, SU5416, SU6668, IFN- [alpha], EMD121974, And radio-sensitizer drugs such as IM-862, steroidal or non-steroidal anti-inflammatory drugs, or agents for angiogenesis, and combinations and / or derivatives thereof. have.
- the therapeutically active agent may be selected from the group comprising nucleic acids, wherein the term nucleic acid refers to a nucleic acid molecule, for example, that is capable of at least two nucleotides covalently linked to each other to provide a gene therapy or antisense effect Lt; / RTI > oligonucleotides.
- the nucleic acid preferably comprises a phosphodiester linkage and also includes an analogue with a different backbone. Analogs include, for example, phosphoramide phosphorothioate, phosphorodithioate, O-methylphosphoroamidite-compound, and peptide-nucleic acid backbone peptide-nukleic acid-backbone and compounds thereof.
- nucleic acid having one or more carbocyclic sugars may be suitable as the nucleic acid used in the present invention.
- any combination of naturally occurring nucleic acids and nucleic acid analogs or mixtures of nucleic acids and analogs may be used.
- Such therapeutically active agents include, for example, everolimus, tacrolimus, sirolimus, mycofenolate-mofetil, rapamycin, paclitaxel, paclitaxel, actinomycin D, angiopeptin, batimastate, estradiol, VEGF, statine, and derivatives and analogs thereof. anti-migratory, anti-proliferative or immunune-suppresive, anti-inflammatory or re-endotheliating agent.
- the therapeutically active agent may be selected from the group consisting of opioid receptor agonists and antagonists, compounds exhibiting action / antagonistic activity and compounds exhibiting partial agonistic activity such as morphine, deformomorphin, etorphine, diacetylmorphine, hydromorphin, oxymorphone, But are not limited to, lepanol, methadone, levomethally, meperidine, fentanyl, cotentanil, alfentanil, codeine, hydrocodone, oxycodone, tebine, desomorphine, nicomorphine, dipropanyl morphine, benzylmorphine, Dean, Methadone, Tramadol, Dextrofoxyphen; Oxon and naltrexone; Buprenorphine, nalbuphine, butorphanol, penta-axine, and ethylketocycline.
- opioid receptor agonists and antagonists compounds exhibiting action / antagonistic activity and compounds exhibiting
- the therapeutically active agents and combinations thereof may be selected from the group consisting of heparin, synthetic heparin analogs (e.g., fondaparinux), hirudin, antithrombin III, drotrecogin alpha;
- the compounds of the present invention may be used in combination with other drugs such as alteplase, plasmin, lysokinase, factor VIIa, prourokinase, urokinase, anistreplase, fibrinolytics such as streptokinase; Platelet aggregation inhibitors such as acetylsalicylic acid [aspirin], ticlopidine, clopidogrel, abciximab, dextran and the like; (Eg, alclometasone, amcinonide, augmented betamethasone, beclomethasone, betamethasone, budesonide, cortisone, clobetasol, clobetasol, clocor
- NSAIDs -inflammatory drugs
- Cytostatics such as alkaloids such as vinblastine and vincristine, and podophyllum toxin
- Cytotoxic antibiotics such as daunorbicin, doxorubicin and other anthracycline and related substances, bleomycin, mitomycin and the like
- Antimetabolites such as folic acid analogs, purine analogs or pyrimidine analogs
- Platinum compounds such as carboplatin, cisplatin or oxaliplatin; But are not limited to, amsacrin, irinitecan, imatinib, topotecan, interferon-alpha 2a, interferon-alpha 2b, hydroxycarbide, , Miltefosine, pentostatin, porfimer, aldesleukin, bexaroten, tretinoin; Antiandrogen and antiestrogen; A quinidine type
- Such therapeutically active agents include, for example, but are not limited to, for example, alprazolam, amoxapine, bentazepam, bromajeffam, clorazepin, clobazam, clotiazepam, diazepam, lorazepam, flunitrazem, fluazepam, Wherein the medicament is selected from the group consisting of medicament, medicament, medicament, medicament, medicament, medicament, medicament, medicament, medicament, medicament, medicament, medicament, medicament, but are not limited to, chlorpromazine, chlorpromazine, haloperidol, triazolam, clozapine, fluoropropazine, fluphenazine decanoate, fluianzone, perphenazine, phimozide, prochlorperazine, sulpiride, thioridazine, , Citalopram, bupuropion, phenelzine, olanzapine, divalphrox sodium and venla
- Such therapeutically active agents include, for example, opioid receptor agonists and antagonists, compounds exhibiting action / antagonistic mixing activity and compounds exhibiting partial agonistic activity, such as morphine, deformomorphin, etorphine, diacetylmorphine, But are not limited to, thiophenes, thiophenes, phosgene, levorphanol, methadone, levomethally, meperidine, fentanyl, cotentanil, alfentanil, codeine, hydrocodone, oxycodone, Morphine, petidine, methadone, tramadol, dextrorphoxifene; Oxon and naltrexone; Buprenorphine, nalbuphine, butorphanol, penta-axine, and ethylketocycline.
- opioid receptor agonists and antagonists compounds exhibiting action / antagonistic mixing activity and compounds exhibiting partial agonistic activity, such as morph
- the therapeutically active agent may be, for example, a tricyclic compound including azothiopine, amitriptyline, famotidine, promethazine, paroxatin, oxcarbazepine, and mirtazapine.
- Such therapeutically active agents include, for example, but not limited to, acetophenone derivatives such as acetohexamide, chlorpropamide, glibencluride, gliclazide, glipizide, metformin, tolazamide, gliburide, glimepiride and tolbutamide It can be antidiabetic.
- acetophenone derivatives such as acetohexamide, chlorpropamide, glibencluride, gliclazide, glipizide, metformin, tolazamide, gliburide, glimepiride and tolbutamide It can be antidiabetic.
- Such therapeutically active agents include, for example, solvemdemtartrate, amilobarbitone, barbitone, butobarbital, pentobarbitone, bromothiazol, carborum, chlordiazepoxide, chlormethiazole, etinamate Hypnotics / sedatives and / or muscle relaxants, including, for example, atopic dermatitis, atopic dermatitis, atopic dermatitis, atopic dermatitis, atopic dermatitis, atopic dermatitis, atopic dermatitis, atopic dermatitis, It can be the best.
- Such therapeutically active agents include, for example, amphotericin, butotonazole nitrate, clotrimazole, econazole, nitrosamines, , Sulconazonitrate, terconazole, thioconazole and undecanoic acid; Benzodiazoles, clioquinol, decouquinate, diiodohydroxyquinoline, diloxanide furoate, dinitol mid, furzolydone, metronidazole, nimorazole, nitroprazone, ornidazole, terbinapine, Antifungal or antiparasitic agents, including but not limited to mazole, chloroquine, mefloquine, itraconazole, pyrimethamine, praziquantel, quinacrine, mebendazole and tidinazole.
- Such therapeutically active agents include, for example, candesartan, hydralazine, clonidine, triamterine, felodipine, psifibrozil, fenofibrate, nephedilac, flazocin, mexamilamine, doxazosin, dobutamine and cilexetil It may be antihypertensive or cardiac therapy.
- the therapeutically active agent may be, for example, an anti-migraine agent including dihydroergotamine mesylate, ergotamine tartrate, methisidized maleate, fizotifen maleate and sumatriptan succinate.
- the therapeutically active agent can be, for example, an antimuscarinic agent comprising atropine, benzhexol, biperidene, ethoprodjin, hosiamine, mefenzolate bromide, oxybutynin, oxypentylimine and tropicamide .
- Such therapeutically active agents include, for example, aminoglutethimide, amsacrine, azathioprine, pilaster, chlorambucil, cyclosporin, dacarbazine, estramermin, etoposide, romestin, melphalan, (Or immunosuppressive agents), including but not limited to furans, methocrecite, mitomycin, mitotan, mitoxantrone, procarbazine, tamoxifen citrate, testolactone, tacrolimus, mercaptopurine and sirolimus, Lt; / RTI >
- Such therapeutically active agents include, for example, but are not limited to, bromocriptine mesylate, levodopa, tolcapone, rofinitrol, bromocriptine, hypoglycemic agents such as sulfonylurea beguuanid, alpha-glucosidase inhibitors , Thiazolidinedione, carbargolin, carbidopa, and lysylide maleate.
- the therapeutically active agent can be, for example, an antithyroid agent including carbamazole and propithiouracil.
- the therapeutically active agent can be, for example, a cardiac muscle contraction agent, including, for example, amrinone, millinone, digoxin, enoximone, ranatoside C and medigokine.
- a cardiac muscle contraction agent including, for example, amrinone, millinone, digoxin, enoximone, ranatoside C and medigokine.
- the therapeutically active agent may be, for example, a hypolipidemic or hyperlipidemic agent, including, for example, phenobibrate, clofibrate, probucol, erythimib and tosecaepib.
- the therapeutically active agent can be, for example, an anti-inflammatory agent, including mexylocam, triamcinolone, cromolyn, nedocromil, hydroxychloroquine, montelukast, gylotron, jaffirucast and meloxicam.
- an anti-inflammatory agent including mexylocam, triamcinolone, cromolyn, nedocromil, hydroxychloroquine, montelukast, gylotron, jaffirucast and meloxicam.
- the therapeutically active agent can be, for example, selected from the group consisting of pesophenadine, chloral hydrate, hydroxyzine, promethazine, cetirazine, cimetidine, cliniczine, mechloridine, dimenhydrinate, loratavine, And antihistamines including prometagins.
- the therapeutically active agent can be, for example, an anti-ulcer agent including omeprazole, lansoprazole, pantoprazole and ranitidine.
- the therapeutically active agent can be, for example, a diuretic including hydrochlorothiazide, amiloride, acetazolamide, furosemide and torsemide.
- Such therapeutically active agents include, for example, first generation retinoids such as retinol, retinal, tretanoin (retinoic acid, retin-A), isotretinoin and alitretinoin, agents such as acetylenes, 2 occurring retinoids; And retinoids containing third generation retinoids such as tyrosine, bexarotene, and adalparen.
- first generation retinoids such as retinol, retinal, tretanoin (retinoic acid, retin-A), isotretinoin and alitretinoin
- agents such as acetylenes, 2 occurring retinoids
- retinoids containing third generation retinoids such as tyrosine, bexarotene, and adalparen.
- Such therapeutically active agents may be, for example, statins and / or derivatives thereof, including atorvastatin, fluvastatin, lovastatin, nystatin, rosuvastatin, pravastatin, orlistat and simvastatin.
- the therapeutically active agent can be, for example, a stimulant comprising amphetamine, pentamine, tilamine, epheldrin, meta-laminol, phenyl ephrine, dexamphetamine, dexfenflamine, fenfluramine, nicotine, caffeine and marginal stones.
- the therapeutically active agent can be, for example, a vasodilator including carvedilol, terazosin, phentolamine and menthol.
- the therapeutically active agent can be, for example, an anti-Alzheimer agent including levetiracetam, levitiracetam and donepezil.
- the therapeutically active agent can be, for example, an ACE inhibitor, including, for example, benzazuril, enalapril, ramipril, posinopril sodium, ricinopril, minoxidil, isosorbide, rhamril and quinapril.
- an ACE inhibitor including, for example, benzazuril, enalapril, ramipril, posinopril sodium, ricinopril, minoxidil, isosorbide, rhamril and quinapril.
- the therapeutically active agent can be, for example, a beta adrenergic receptor antagonist including atenolol, thymolol, finolol, proanolol hydrochloride, bisophorolol, esolol, methoprolol succinate, methoprolol and methoprolol tartrate .
- a beta adrenergic receptor antagonist including atenolol, thymolol, finolol, proanolol hydrochloride, bisophorolol, esolol, methoprolol succinate, methoprolol and methoprolol tartrate .
- the therapeutically active agent may be, for example, an angiotensin II antagonist comprising losartan.
- the therapeutically active agent can be, for example, a platelet inhibitor, including abciximab, clopidogel, tirofiban, and aspirin.
- Such therapeutic active agents include, for example, tramadol, tramadol hydrochloride, allopurinol, calcitriol, cilostazol, sortalol, urachodiol bromfuridol, droperidol, flufenthisol decanoate, albuterol, And may be an alcohol or phenol including, for example, benzoyl peroxide, sorbitan monolaurate, sorbitan monolaurate, sorbitan monolaurate, sorbitan monolaurate, sorbitan monolaurate, sorbitan monolaurate, sorbitan monolaurate, sorbitan monolaurate, sorbitan monolaurate,
- the therapeutically active agents may be, for example, ketones or esters, including amiodarone, fluticasone, spironolactone, prednisone, triazodone, dexamethasone, methylprednison, benzonatate nabumetone and buspirone have.
- the therapeutically active agent can be, for example, an anti-vomiting agent, including methoclopramide.
- the therapeutically active agent can be, for example, an eye treatment agent comprising a dorzolamide, brimonidine, olopatadine, cyclopentolate, pilocarpine and echothiophate.
- the therapeutically active agent may be, for example, an anticoagulant or an antithrombotic agent including warfarin, enoxaparin and repirudin.
- the therapeutically active agent may be, for example, a gout therapeutic agent comprising probenecin and sulfinpyrazone.
- the therapeutically active agent can be, for example, a COPD or asthma treatment comprising ipratropium.
- the therapeutically active agent can be, for example, an osteoporosis treating agent including raloxifene, pamidronate and risedronate.
- the therapeutic active may be, for example, a cosmetic peptide comprising acetyl hexapeptide-3, acetyl hexapeptide-8, acetyl octapeptide and 1-carnosine.
- the therapeutically active agent can be, for example, a vaccine comprising a toxoid (a non-activated toxic compound); Proteins, protein subunits and polypeptides; Polynucleotides such as DNA and RNA; Junction; Saponin, virosomes, ignorance, and organic azants, such as, for example, Jostakovsky.
- a toxoid a non-activated toxic compound
- Proteins, protein subunits and polypeptides Proteins, protein subunits and polypeptides
- Polynucleotides such as DNA and RNA
- Junction Saponin, virosomes, ignorance, and organic azants, such as, for example, Jostakovsky.
- Such therapeutically active agents include, for example, coenzyme Q10 (or ubiquinone), ubiquinol or resveratrol; carotenoids such as alpha, beta or gamma -carotene, lycopene, lutein, zeaxanthin and astaxanthin; Plant nutrients such as lycopene, lutein and siaxanthin; Omega-3 fatty acids including linoleic acid, conjugated linoleic acid, docosahexanoic acid (DHA) and ericosapentaenoic acid (EPA) and their glycerol-esters; Vitamin D (D2, D3 and derivatives thereof), vitamin E (alpha, beta, gamma, delta-tocopherol or alpha, beta, gamma, delta-tocotrienol), vitamin A (retinol, retinal, retinoic acid and derivatives) , Capric / caprylic triglycerides, folic
- the mesoporous silica particles may be modified on the surface and / or inside of the pores.
- This modification means that the -OH functional group of the silanol group (Si-OH) of the silica particle is replaced with another functional group.
- the type of physiologically active substance suitable for carrying can be varied depending on the kind of the functional group to be modified and the degree of modification, and the zeta potential is changed to produce a difference in the size.
- a chemical or biological modification method can be adopted, but the method can be carried out by a well-known method in the art.
- Chemical modification method can be adopted.
- the surface of the particles and the interior of the pores may be modified in the same manner or may be modified differently.
- the modification may be carried out by reacting a compound having a hydrophilic, hydrophobic, cationic, or anionic substituent to be introduced with the particle, but not limited thereto, and it is possible to carry out the modification by transferring a physiologically active substance, transferring a physiologically active substance to a target cell, Or a compound having a substituent for the purpose of supporting a substance for other purposes or for binding of other additional substituents to the particle, and the substituent may be a form including an antibody, a ligand, a cell permeable peptide, Lt; / RTI >
- the compound may be, for example, an alkoxysilane having a C1 to C10 alkoxy group, but is not limited thereto.
- the alkoxysilane is one having at least one of the above-mentioned alkoxy groups and may have, for example, 1 to 3 substituents, and may have a substituent to be introduced or a substituted substituent at a site where an alkoxy group is not bonded.
- an alkoxysilane When the alkoxysilane is reacted with the porous silica particles, an alkoxysilane can be bonded to the surface and / or pores of the porous silicon particles by forming a covalent bond between the silicon atom and the oxygen atom, and the alkoxysilane has a substituent to be introduced The substituent may be introduced into the surface and / or pores of the porous silicon particles.
- the reaction may be carried out by reacting the porous silica particles dispersed in a solvent with alkoxysilane.
- the solvent may be water and / or an organic solvent, and the organic solvent may be an ether such as 1,4-dioxane (Especially cyclic ethers); Halogenated hydrocarbons such as chloroform, methylene chloride, carbon tetrachloride, 1,2-dichloroethane, dichloroethylene, trichlorethylene, perchlorethylene, dichloropropane, amyl chloride and 1,2-dibromoethane; Acetone, methyl isobutyl ketone,?
- the reaction of the particles with the alkoxysilane can be carried out, for example, under heating, and the heating can be carried out at a temperature of, for example, 80 to 180 DEG C, for example 80 to 160 DEG C, 80 to 150 DEG C, 100 ° C to 160 ° C, 100 ° C to 150 ° C, 110 ° C to 150 ° C, and the like.
- reaction of the particles with the alkoxysilane can be carried out, for example, for 4 to 20 hours, for example 4 to 18 hours, 4 to 16 hours, 6 to 18 hours, 6 to 16 hours , 8 hours to 18 hours, 8 hours to 16 hours, 8 hours to 14 hours, 10 hours to 14 hours, and the like.
- the modification to the cationic substituent may be for positively charging the particles or for supporting the negatively chargeable physiologically active substance, for example, an alkoxysilane having a basic group such as an amino group, And the reaction can be carried out.
- Specific examples thereof include N- [3- (Trimethoxysilyl) propyl] ethylenediamine, N1- (3-Trimethoxysilylpropyl) diethylenetriamine, (3-Aminopropyl) trimethoxysilane, N- [3- propyl] silane, 3- (2-Aminoethylamino) propyldimethoxymethylsilane, and the like, but the present invention is not limited thereto.
- the modification to the anionic substituent may be for negatively charging the particles or for supporting the positively charged physiologically active substance, and reacting with an alkoxysilane having an acidic group such as a carboxyl group, a sulfonic acid group or a thiol group .
- an alkoxysilane having an acidic group such as a carboxyl group, a sulfonic acid group or a thiol group .
- 3-Mercaptopropyl) trimethoxysilane can be used, but is not limited thereto.
- the modification with a hydrophilic substituent has advantages in terms of ease of use and formulation of the composition of the present invention.
- examples thereof include a carboxyl group, an amino group, a carbonyl group, a sulfhydryl group, a phosphate group, a thiol group, , An ester group, an imide group, a thioimide group, a keto group, an ether group, an indene group, a sulfonyl group, a polyethylene glycol group, or the like.
- the modification to the hydrophobic substituent has an advantage that the bonding strength with the physically active substance is poor (hydrophobic).
- trimethoxy (octadecyl) silane trimethoxy n-octylsilane, trimethoxy propyl silane
- isobutyl trimethoxy silane trimethoxy (7-octen- silane, trimethoxy (2-phenylethyl) silane, vinyltrimethoxysilane, cyanomethyl, 3- (trimethoxysilyl) propyl] trithiocarbonate and (3-Bromopropyl) trimethoxysilane.
- the modification may be carried out in combination, for example, two or more surface modification may be performed on the outer surface or inside the pores.
- a compound containing a carboxyl group may be bonded to an amide group-introduced silica particle with an amide bond to change positively charged particles to have different surface characteristics, but the present invention is not limited thereto.
- the reaction temperature, time, and the amount of the compound used in the modification may be selected depending on the desired degree of modification, and the reaction conditions may vary depending on the hydrophilicity, hydrophobicity, By adjusting the hydrophilicity, hydrophobicity and electric charge of the silica particles, the release rate of the physiologically active substance can be controlled. For example, when a physiologically active substance has a strong negative charge at a neutral pH, the reaction temperature can be increased or the reaction time can be lengthened and the compound throughput can be increased in order to allow the porous silica particles to have a strong positive charge , But is not limited thereto.
- the above-mentioned porous silica particles are biodegradable particles, and when physiologically active substances are carried on the body, they can be biodegraded in the body to release physiologically active substances, May be slowly decomposed in the body so that the supported physiologically active substance has sustained release properties.
- t at which the ratio of the absorbance of the following formula (1) is 1/2 is 20 or more.
- a 0 is the absorbance of the porous silica particles measured by placing 5 ml of the 1 mg / ml suspension of the porous silica particles in a cylindrical permeable membrane having pores having a diameter of 50 kDa,
- the pH of the suspension was 7.4,
- a t is the absorbance of the porous silica particles measured after passage of time t from the measurement of A 0 ).
- the above equation (1) means that the porous silica particles are decomposed at a certain rate in an environment similar to the body, and the absorbances A 0 and A t are obtained by, for example, putting the porous silica particles and suspension into a cylindrical permeable membrane, The same suspension may also be placed on the outside of the membrane.
- the suspension may be a buffer solution, and may be at least one selected from the group consisting of, for example, PBS (phosphate buffered saline) and SBF (simulated body fluid), and more specifically, PBS.
- PBS phosphate buffered saline
- SBF simulated body fluid
- the particles are biodegradable and can be slowly degraded in the suspension.
- the diameter of 50 kDa corresponds to about 5 nm.
- the biodegradable particles can pass through a permeation membrane having a diameter of 50 kDa and the cylindrical permeation membrane is under a horizontal stirring of 60 rpm. And the disintegrated particles can come out of the permeable membrane.
- the absorbance in Equation (1) may be measured under an environment in which, for example, the suspension outside the permeable membrane is replaced with a new suspension.
- the suspension may be constantly being replaced, replaced at regular intervals, and the period may be a periodic or irregular period. For example, in the range of 1 hour to 1 week, an interval of 1 hour, 2 hours, 3 hours, 6 hours, 12 hours, 24 hours, 2 days, 3 days, 4 days, 7 Day interval, etc., but is not limited thereto
- the absorbance becomes half of the initial absorbance after t time, meaning that about half of the porous silica particles are decomposed.
- T may be 20 or more, or 24 or more, for example, t is 20 to 120, for example, in which the ratio of the absorbance of the formula (1) is 1/2, and for example, 20 to 96, 20 to 72, 30 to 70, 40 to 70, 50 to 65, and the like.
- the particle may have a ratio t of 1/5 of the absorbance of the formula (1), for example, 70 to 140, and for example, 80 to 140, 80 to 120, 80 to 110, 70 to 140 , 70 to 120, 70 to 110, and the like.
- the particle may have a ratio of the absorbance of the formula 1 to 1/20, for example, 130 to 220, and may be within the range of, for example, 130 to 200, 140 to 200, 140 to 180, 150 to 180 And the like, but is not limited thereto.
- the particle may have a t of, for example, not less than 250, such as not less than 300, not less than 350, not less than 400, not less than 500, not less than 1000, and the like, where the absorbance to be measured is 0.01 or less, But is not limited to.
- the particle may have a Pearson correlation coefficient of 0.8 or more, for example, 0.9 or more, and 0.95 or more, for example, where the ratio of the absorbance of Equation 1 and t have a high positive correlation.
- T represents the degree of decomposition of the porous silica particles at a certain rate in an environment similar to that of the body. This means that the surface area, the particle size, the pore diameter, the surface of the porous silica particles, and / The substituent, the degree of compactness of the surface, and the like.
- the surface area of the particles can be increased to decrease t, or the surface area can be decreased to increase t.
- the surface area can be controlled by controlling the diameter of the particles and the diameter of the pores. It is also possible to increase the t by placing substituents in the surface and / or pores to reduce the direct exposure of the porous silica particles to the environment (solvent, etc.). Also, it is possible to increase the affinity between the physiologically active substance and the porous silica particles by supporting the physiologically active substance on the porous silica particles, and to reduce the direct exposure of the porous silica silica particles to the environment, thereby increasing t. It is also possible to increase the t by fabricating the surface more densely during the production of the particles. While various examples have been described above for adjusting t in Equation 1, the present invention is not limited thereto.
- the mesoporous silica particles are particles of silica (SiO 2 ) and have a diameter of several nanometers to several micrometers in size.
- the average diameter of the particles may be, for example, 100 nm to 1000 nm, and may be, for example, 100 nm to 800 nm, 100 nm to 500 nm, 100 nm to 400 nm, 100 nm to 300 nm, 100 nm to 200 nm, But is not limited to.
- the above-mentioned mesoporous silica particles are porous particles having nano-sized pores so that the above-mentioned physiologically active substance can be supported in pores or on the surface of the particles.
- the average pore diameter of the particles may be, for example, from 1 nm to 100 nm. For example, within the above range, for example, 5 nm to 100 nm, 7 nm to 100 nm, 7 nm to 50 nm, 10 nm to 50 nm, 10 nm to 30 nm, But the present invention is not limited thereto and can be suitably selected and controlled in consideration of the amount and size of the physiologically active substance to be carried.
- the shape of the mesoporous silica particles is not particularly limited to a specific form, but may be selected from the group consisting of the original activity of the flow in the blood flow, the original activity of interaction with blood cells in the bloodstream, Considering the prevention of hemolysis of red blood cells, it is preferable to be spherical.
- the BET surface area of the porous silica particles may be, for example, 200 m 2 / g to 700 m 2 / g.
- the BET surface area of the porous silica particles may be, for example, 200 m 2 / g to 700 m 2 / g.
- 200m 2 / g to 700m 2 / g 200m 2 / g to 650m 2 / g, 250m 2 / g to 650m 2 / g, 300m 2 / g to 700m 2 / g, 300m 2 / g to 650 m 2 / g, 300 m 2 / g to 600 m 2 / g, 300 m 2 / g to 550 m 2 / g, 300 m 2 / g to 500 m 2 / g, 300 m 2 / g to 450 m 2 / But is not limited thereto.
- the volume of the porous silica particles may be, for example, 0.7 ml to 2.2 ml per gram.
- it may be within the range of 0.7 ml to 2.0 ml, 0.8 ml to 2.2 ml, 0.8 ml to 2.0 ml, 0.9 ml to 2.0 ml, 1.0 ml to 2.0 ml, and the like. If the volume per gram is too small, the rate of decomposition may become too high, and excessively large particles may be difficult to manufacture or may not have a perfect shape.
- the above-mentioned mesoporous silica particles are those having a surface charge, that is, particles having a zeta potential of not 0 mV. This is because, as described above, by suppressing aggregation or precipitation of particles in the blood due to the repulsive force between particles modified by the same method, the flow in the blood is smooth and the physiologically active substance effectively carried on the target tissue or cells is transferred I will.
- the value of the surface charge of the particle that is, the value of the zeta potential may be, for example, +1 to +150 mV or +2 to 130 mV when positively charged, and may be +3 to +100 mV But may be -150 to -1 mV or -130 to -10 mV when negatively charged, and may be -100 to -18 mV, but the value of the zeta potential is not limited to the particle The amount and the release rate of the physiologically active substance to be carried on the drug, and the like.
- the value of the zeta potential is more than -18 mV and less than +3 mV
- the repulsive force between the porous silica particles is lowered so that the particles can flocculate, the charge of the physiologically active substance bearing the charge can hardly be supported, Or less than -100 mV, the binding force with the charged physiologically active substance becomes excessively high and effective release may be difficult.
- the above-mentioned physiologically active substance may be supported on the surface and / or pores of the above-mentioned porous silica particles (Mesoporous Silica Particles, MSP).
- MSP Porous Silica Particles
- the support of the physiologically active substance on the particles can be carried out, for example, by mixing the porous silica particles in the solvent and the physiologically active substance, and the solvent can be water and / or an organic solvent, Ethers such as 1,4-dioxane (particularly, cyclic ethers); Halogenated hydrocarbons such as chloroform, methylene chloride, carbon tetrachloride, 1,2-dichloroethane, dichloroethylene, trichlorethylene, perchlorethylene, dichloropropane, amyl chloride and 1,2-dibromoethane; Ketones such as acetone, methyl isobutyl ketone, and cyclohexanone; Carbon-based aromatic compounds such as benzene, toluene and xylene; Alkyl amides such as N, N-dimethylformamide, N, N-dibutylformamide, N, N-dimethylacetamide and N-methylpyrrolidone
- PBS phosphate buffered saline solution
- SBF Simulated Body Fluid
- borate-buffered saline borate-buffered saline
- Tris-buffered saline Tris-buffered saline, etc. may be used as the solvent.
- the ratio of the porous silica particles to the physiologically active substance is not particularly limited and may be, for example, 1: 0.05 to 0.8, for example, 1: 0.05 to 0.7, 1: 0.05 to 0.6, 1: 0.1 To 0.8, 1: 0.1 to 0.6, 1: 0.2 to 0.8, 1: 0.2 to 0.6, and the like.
- the mesoporous silica particles can gradually release the supported physiologically active substance over a long period of time.
- the physiologically active substance supported on the particles may be released while the particles are biodegraded.
- the particles may be slowly decomposed to release the physiologically active substance to be released slowly. This can be controlled, for example, by controlling the surface area, particle size, pore diameter, surface area and / or porosity of the porous silica particles, the degree of compactness of the surface, and the like.
- the physiologically active substance supported on the particles may be released while diffusing from the porous silica particles, which is affected by the relationship between the porous silica particles, the physiologically active substance, and the environment for releasing the physiologically active substance.
- the release of bioactive material can be controlled. For example, by strengthening or weakening the binding force of the porous silica particles with the physiologically active substance by surface modification.
- the binding force between the particle and the physiologically active substance may be increased due to the presence of a hydrophobic substituent on the surface and / or pores of the particle, Whereby the physiologically active substance can be released in a sustained manner.
- the particle is surface-modified with an alkoxysilane having a hydrophobic substituent.
- “poorly soluble” is a meant to include (for water) in that the insoluble (insoluble), substantially insoluble (practically insoluble) or very slightly soluble (only slightly soluble) This "Pharmaceutical Science,” 18 th Edition ( USP, Remington, published by Mack Publishing Company).
- the water-insoluble physiologically active substance may have a water solubility of less than 10 g / L, specifically less than 5 g / L, more specifically less than 1 g / L at 25 ° C under 1 atm, but is not limited thereto.
- the surface and / or the pores of the particles may have a hydrophilic substituent and the binding strength between the porous silica particles and the physiologically active substance may be increased, It can be released slowly.
- the porous silica particles may be surface-modified with an alkoxysilane having a hydrophilic substituent.
- the water-soluble physiologically active substance may have a water solubility of 10 g / L or more at 25 ° C and 1 atm, but is not limited thereto.
- the surface and / or pore of the particle may be charged with opposite charge to increase the binding force between the porous silica particle and the physiologically active substance, Material may be released slowly.
- the porous silica particles may be surface-modified with an alkoxysilane having an acidic group or a basic group.
- the surface and / or pore of the particle may be negatively charged at a neutral pH, whereby the binding force between the porous silica particle and the physiologically active substance So that the physiologically active substance can be released slowly.
- the porous silica particles may be surface-modified with an alkoxysilane having an acidic group such as a carboxyl group (-COOH) or a sulfonic acid group (-SO 3 H).
- the surface and / or pore of the particle may be positively charged, thereby increasing the binding force between the porous silica particle and the physiologically active substance, Can be released slowly.
- the porous silica particles may be surface-modified with an alkoxysilane having a basic group such as an amino group or other nitrogen-containing groups.
- the supported physiologically active substance may be released for a period of, for example, 7 days to 1 year or more depending on the type of treatment required, the release environment, and the porous silica particles used.
- the mesoporous silica particles (MSP) can be decomposed 100% as biodegradable, the supported physiologically active substance can be 100% released.
- the 100% biodegradability of the particles can be appropriately set in accordance with the object of the amount of the physiologically active substance carried in the intravascular drug delivery, thereby avoiding problems such as side effects due to overuse of the physiologically active substance And it is possible to free the particles from serious situations such as blocking the blood vessels without completely decomposing them, and it is a great advantage to overcome the impossibility of performing the same procedure, which is a big problem of the existing embolization procedure, .
- the mesoporous silica particles may be prepared by, for example, preparing pore-forming particles and pore-expanding processes, and if necessary, A reforming process, and the like.
- the surface modification may be performed after the calcination.
- the small pore particles may be, for example, particles having an average pore diameter of 1 nm to 5 nm, which can be obtained by adding a surfactant and a silica precursor to a solvent and stirring and homogenizing.
- the solvent may be water and / or an organic solvent.
- organic solvent include ethers (especially, cyclic ethers) such as 1,4-dioxane; Halogenated hydrocarbons such as chloroform, methylene chloride, carbon tetrachloride, 1,2-dichloroethane, dichloroethylene, trichlorethylene, perchlorethylene, dichloropropane, amyl chloride and 1,2-dibromoethane; Acetone, methyl isobutyl ketone,?
- water and an organic solvent may be used in a volume ratio of 1: 0.7 to 1.5, for example, in a volume ratio of 1: 0.8 to 1.3, no.
- the surfactant may be, for example, CTAB (cetyltrimethylammonium bromide), hexadecyltrimethylammonium bromide (TMABr), hexadecyltrimethylpyridinium chloride (TMPrCl), tetramethylammonium chloride (TMACl), and the like.
- CTAB cetyltrimethylammonium bromide
- TMABr hexadecyltrimethylammonium bromide
- TMPrCl hexadecyltrimethylpyridinium chloride
- TMACl tetramethylammonium chloride
- the surfactant may be added in an amount of, for example, 1 g to 10 g per liter of solvent, for example, in the range of 1 g to 8 g, 2 g to 8 g, 3 g to 8 g, and the like.
- the silica precursor may be added after stirring and adding a surfactant to the solvent.
- the silica precursor may be, for example, TMOS (Tetramethyl orthosilicate), but is not limited thereto.
- the stirring may be carried out, for example, for 10 minutes to 30 minutes, but is not limited thereto.
- the silica precursor may be added, for example, in an amount of 0.5 ml to 5 ml per liter of solvent, for example, 0.5 ml to 4 ml, 0.5 ml to 3 ml, 0.5 ml to 2 ml, 1 ml to 2 ml, But may be further added with sodium hydroxide as a catalyst as needed, which may be added with stirring before addition of the surfactant to the solvent, followed by addition of the silica precursor.
- the sodium hydroxide may be, for example, 0.5 ml to 8 ml per liter of solvent, for example 1 ml of sodium hydroxide solution, 0.5 ml to 5 ml, 0.5 ml to 4 ml, 1 ml to 4 ml, 1 ml to 3 ml, But is not limited thereto.
- the solution can be reacted with stirring.
- the stirring may be carried out for example for 2 hours to 15 hours, for example, within the above range for 3 hours to 15 hours, 4 hours to 15 hours, 4 hours to 13 hours, 5 hours to 12 hours, 6 hours to 12 hours , 6 hours to 10 hours, and the like, but is not limited thereto. If the stirring time (reaction time) is too short, nucleation may be insufficient.
- the solution may be aged.
- the aging can be carried out, for example, for 8 hours to 24 hours, for example within the above range, 8 to 20 hours, 8 to 18 hours, 8 to 16 hours, 8 to 14 hours, 10 to 16 hours , 10 hours to 14 hours, and the like, but is not limited thereto.
- reaction product may be washed and dried to obtain porous silica particles, and if necessary, separation of the unreacted material may be preceded by washing, for example, by separating the supernatant liquid by centrifugation.
- the centrifugation can be performed at, for example, 6,000 to 10,000 rpm, for example, for 3 minutes to 60 minutes, for example, 3 minutes to 30 minutes, 3 minutes to 30 minutes, 5 minutes To 30 minutes, and the like, but the present invention is not limited thereto.
- the washing may be performed using water and / or an organic solvent. Specifically, since the materials soluble in each solvent are different, water and an organic solvent may be used once or several times alternately. Alternatively, water or an organic solvent may be used once or several times It can be washed several times. The number of times may be, for example, 2 or more, 10 or less, for example, 3 or more and 10 or less, 4 or more or 8 or less, 4 or more or 6 or less, and the like.
- the organic solvent includes, for example, ethers such as 1,4-dioxane (particularly, cyclic ethers); Halogenated hydrocarbons such as chloroform, methylene chloride, carbon tetrachloride, 1,2-dichloroethane, dichloroethylene, trichlorethylene, perchlorethylene, dichloropropane, amyl chloride and 1,2-dibromoethane; Acetone, methyl isobutyl ketone,?
- ethers such as 1,4-dioxane (particularly, cyclic ethers)
- Halogenated hydrocarbons such as chloroform, methylene chloride, carbon tetrachloride, 1,2-dichloroethane, dichloroethylene, trichlorethylene, perchlorethylene, dichloropropane, amyl chloride and 1,2-dibromoethane
- Acetone methyl isobutyl ketone
- the washing may be carried out under centrifugation, for example, at a speed of 6,000 to 10,000 rpm, for example, for 3 minutes to 60 minutes, for example 3 minutes to 30 minutes, Min to 30 min, 5 min to 30 min, and the like, but the present invention is not limited thereto.
- the washing may be performed by filtering the particles with a filter without centrifugation.
- the filter may have pores smaller than the diameter of the porous silica particles.
- the water and the organic solvent may be used once or several times at the time of the washing, and the water or the organic solvent may be washed once or several times.
- the number of times may be, for example, 2 or more, 10 or less, for example, 3 or more and 10 or less, 4 or more or 8 or less, 4 or more or 6 or less, and the like.
- the drying may be performed at, for example, 20 ° C to 100 ° C, but is not limited thereto, and may be performed in a vacuum state.
- the pores of the obtained porous silica particles are expanded, which can be carried out using a pore-expanding agent.
- pore-expanding agent for example, trimethylbenzene, triethylbenzene, tripropylbenzene, tributylbenzene, tripentylbenzene, trihexylbenzene, toluene, benzene and the like can be used. Specifically, trimethylbenzene can be used. But is not limited to.
- the pore-expanding agent may be, for example, N, N-dimethylhexadecylamine (DMHA), but is not limited thereto.
- DMHA N, N-dimethylhexadecylamine
- the pore expansion can be performed, for example, by mixing porous silica particles in a solvent with a pore-expanding agent, and heating and reacting, for example, water and / or an organic solvent, Ethers such as 1,4-dioxane (particularly, cyclic ethers); Halogenated hydrocarbons such as chloroform, methylene chloride, carbon tetrachloride, 1,2-dichloroethane, dichloroethylene, trichlorethylene, perchlorethylene, dichloropropane, amyl chloride and 1,2-dibromoethane; Ketones such as acetone, methyl isobutyl ketone, and cyclohexanone; Carbon-based aromatic compounds such as benzene, toluene and xylene; Alkyl amides such as N, N-dimethylformamide, N, N-dibutylformamide, N, N-dimethylacetamide and N-methylpyrrolidon
- the porous silica particles may be present in an amount of from 10 g to 200 g per liter of solvent, for example from 10 g to 150 g, 10 g to 100 g, 30 g to 100 g, 40 g to 100 g, 50 g to 100 g, 50 g to 80 g, But the present invention is not limited thereto.
- the porous silica particles may be uniformly dispersed in a solvent, for example, the porous silica particles may be added to a solvent and ultrasonically dispersed.
- the second solvent may be added after dispersing the porous silica particles in the first solvent.
- the pore-expanding agent may be, for example, 10 to 200 parts of skin to 100 parts of skin, 10 to 150 parts of skin, 10 to 100 parts of skin, 10 to 80 parts of skin, 30 to 80 parts of skin, 70 parts skin, and the like, but the present invention is not limited thereto.
- the reaction can be carried out, for example, at 120 ° C to 180 ° C.
- 120 ° C to 180 ° C For example, within the above-mentioned range, it is possible to use a temperature of 120 to 170 ° C, 120 to 160 ° C, 120 to 150 ° C, 130 to 180 ° C, 130 to 170 ° C, 130 to 160 ° C, 130 to 150 ° C, But is not limited thereto.
- the reaction can be carried out, for example, for 24 hours to 96 hours.
- 24 hours to 96 hours For example, within the above range from 30 hours to 96 hours, 30 hours to 96 hours, 30 hours to 80 hours, 30 hours to 72 hours, 24 hours to 80 hours, 24 hours to 72 hours, 36 hours to 96 hours, 36 48 hours to 48 hours, 48 hours to 80 hours, 48 hours to 72 hours, and the like, for example, from 1 hour to 80 hours, 36 hours to 72 hours, 36 hours to 66 hours, 36 hours to 60 hours, But is not limited thereto.
- the reaction time may be increased when the reaction temperature is lowered, or the reaction time may be shortened when the reaction temperature is lowered. If the reaction is insufficient, the expansion of the pores may not be sufficient, and if the reaction proceeds excessively, the particles may collapse due to over-expansion of the pores.
- the reaction can be carried out, for example, by raising the temperature stepwise. Specifically, it can be performed by raising the temperature from room temperature to the temperature stepwise at a rate of 0.5 ° C / min to 15 ° C / min, for example, within a range of 1 ° C / min to 15 ° C / Min to 15 ° C / min, 3 ° C / min to 12 ° C / min, 3 ° C / min to 10 ° C / min, and the like.
- the reaction solution may be gradually cooled, for example, it may be cooled stepwise. Specifically, it may be performed by gradually warming the temperature to room temperature at a rate of 0.5 ° C / minute to 20 ° C / minute.
- the temperature may be 1 ° C / minute to 20 ° C / 20 ° C / min, 3 ° C / min to 12 ° C / min, 3 ° C / min to 10 ° C / min, and the like.
- reaction product is washed and dried to obtain pore-expanded porous silica particles.
- the separation of the unreacted material may be preceded by washing before washing, for example, by separating the supernatant by centrifugation.
- the centrifugation can be performed at, for example, 6,000 to 10,000 rpm, for example, for 3 minutes to 60 minutes, for example, 3 minutes to 30 minutes, 3 minutes to 30 minutes, 5 minutes To 30 minutes, and the like, but the present invention is not limited thereto.
- the washing may be performed using water and / or an organic solvent.
- water and an organic solvent may be used once or several times alternately.
- water or an organic solvent may be used once or several times It can be washed several times.
- the number of times may be, for example, two times or more and ten times or less, for example, three times, four times, five times, six times, seven times, eight times, and the like.
- the organic solvent includes, for example, ethers such as 1,4-dioxane (particularly, cyclic ethers); Halogenated hydrocarbons such as chloroform, methylene chloride, carbon tetrachloride, 1,2-dichloroethane, dichloroethylene, trichlorethylene, perchlorethylene, dichloropropane, amyl chloride and 1,2-dibromoethane; Ketones such as acetone, methyl isobutyl ketone, and cyclohexanone; Carbon-based aromatic compounds such as benzene, toluene and xylene; Alkyl amides such as N, N-dimethylformamide, N, N-dibutylformamide, N, N-dimethylacetamide and N-methylpyrrolidone; Alcohols such as methanol, ethanol, propanol and butanol; Etc., and specifically ethanol, more specifically ethanol, may be used, but the present invention
- the washing may be carried out under centrifugation, for example, at a speed of 6,000 to 10,000 rpm, for example, for 3 minutes to 60 minutes, for example 3 minutes to 30 minutes, Min to 30 min, 5 min to 30 min, and the like, but the present invention is not limited thereto.
- the washing may be performed by filtering the particles with a filter without centrifugation.
- the filter may have pores smaller than the diameter of the porous silica particles.
- the water and the organic solvent may be used once or several times at the time of the washing, and the water or the organic solvent may be washed once or several times.
- the number of times may be, for example, 2 or more, 10 or less, for example, 3 or more and 10 or less, 4 or more or 8 or less, 4 or more or 6 or less, and the like.
- the drying may be performed at, for example, 20 ° C to 100 ° C, but is not limited thereto, and may be performed in a vacuum state.
- the obtained particles can be calcined.
- the calcination is a process for heating the particles to have a more dense structure on the surface and inside thereof, and removing organic substances that fill the pores.
- calcination is performed at 400 to 700 ° C for 3 hours To 8 hours, more specifically, from 500 ° C to 600 ° C for 4 hours to 5 hours, but the present invention is not limited thereto.
- porous silica particles can be modified in the surface and / or inside of the pores in the manner described above.
- the mesoporous silica particles may also be prepared by, for example, preparing particles of small pores, expanding pores, modifying the surface, or modifying pores inside.
- the particle preparation and the pore expansion of the small pores may be performed by the processes described above, and then the cleaning and drying processes may be performed.
- the separation of the unreacted material may be preceded by washing before washing, for example, by separating the supernatant by centrifugation.
- the centrifugation may be performed at, for example, 6,000 to 10,000 rpm, for example, 3 minutes to 60 minutes, specifically 3 minutes to 30 minutes, 3 minutes to 30 minutes, 5 minutes To 30 minutes, and the like, but the present invention is not limited thereto.
- the cleaning after the particle preparation of the small pores may be carried out by any method / condition within the range exemplified above, but is not limited thereto.
- the purging after the pore expansion can be performed under more relaxed conditions than in the previous examples. For example, washing may be performed within 3 times, but is not limited thereto.
- the surface and / or pore interior modification of the particles can be performed by the method described above, and the process can be performed in the order of surface modification and pore interior modification, and a cleaning process of the particles is further performed between the two processes .
- the inside of the pores are filled with the reaction liquid such as the particles used for the preparation of the particles and the pore expansion, Only the surface can be modified. The particles may then be washed to remove the reaction liquid inside the pores.
- the washing of the particles between the surface modification and the pore interior modification process may be performed using water and / or an organic solvent. Specifically, since the materials soluble in each solvent are different, water and an organic solvent may be used once or several times, Water or an organic solvent can be washed once or several times. The number of times may be, for example, 2 or more, 10 or less, specifically 3 or more and 10 or less, 4 or more or 8 or less, 4 or more, 6 or less, and the like.
- the washing may be carried out under centrifugation, for example, at 6,000 to 10,000 rpm, for example, for 3 to 60 minutes, specifically for 3 to 30 minutes, Min to 30 min, 5 min to 30 min, and the like, but the present invention is not limited thereto.
- the washing may be performed by filtering the particles with a filter without centrifugation.
- the filter may have pores smaller than the diameter of the porous silica particles.
- the water and the organic solvent may be used once or several times at the time of the washing, and the water or the organic solvent may be washed once or several times.
- the number of times may be, for example, 2 or more, 10 or less, specifically 3 or more and 10 or less, 4 or more or 8 or less, 4 or more, 6 or less, and the like.
- the drying may be performed at, for example, 20 ° C to 100 ° C, but is not limited thereto, and may be performed in a vacuum state.
- composition for delivering an intravascular bioactive substance according to the present invention may further contain substances known in the art depending on the efficiency of delivery of the physiologically active substance carried on the porous silica particles or the purpose of using the composition.
- substance that can further include, but are not limited to, a fluorescent labeling substance, a blood coagulation preventing agent, a red blood cell hemolytic agent or contrast agent, and the like.
- the blood coagulation inhibitor may be 1,2-distearoyl-sn-glycero-3- (phospho-lact- (1-glycerol)) (1,2-DISTEAROYL-SN- GLYCERO- 3- (PHOSPHO- - (1-GLYCEROL)), 1,2-distearoyl-SN-GLYCERO-3-PHOSPHOCHOLINE, CETOMACROGOL 1000), cetostearyl alcohol (cETOSTEARYL aLCOHOL), cetyl alcohol (cETYL aLCOHOL), cetylpyridinium chloride (cETYLPYRIDINIUM cHLORIDE), cholesterol (cHOLESTEROL), di-palmitoyl phosphatidylglycerol (DIPALMITOYLPHOSPHATIDYLGLYCEROL), one phosphatidylcholine (DISTEAROYLPHOSPHATIDYLCHOLINE) to distearate , ALKYL POLYGLYCOSIDE
- the contrast agent is selected from the group consisting of metrizamide, iopamidol, iodixanol, iohexol, iopromide, ioptilide, iomeprol, iopentol, iopaminol, ioxilane, iotrollan, gadodiamide, But are not limited to, at least one selected from the group consisting of lauric acid, lauric acid, lauric acid, lauric acid, lauric acid, lauric acid, lauric acid, gadodiamide, But are not limited to, at least one selected from the group consisting of lauric acid, lauric acid, lauric acid, lauric acid, lauric acid, lauric acid, lauric acid, but are not limited to, at least one selected from the group consisting of lauric acid, lauric acid, lauric acid, lauric acid, lauric acid, lauric acid, but are not limited to, at
- the composition for delivering an intravascular bioactive substance of the present invention specifically relates to intravascular administration of the composition of the present invention.
- intravascular is understood to refer to the transfer into the vascular system of a patient, which means within the patient's 'vessel (s)', 'into the vessel (s)' or 'in the vessel (s)'.
- the administration is intravenous (intravenous) administration which is deemed to be intravenous, while in other embodiments administration is administration into the vessel, which is considered to be arterial.
- the veins are divided into internal jugular vein, peripheral vein, coronary vein, hepatic vein, arteriovenous fistula, great saphenous vein, pulmonary vein, superior vein, inferior vein, stomach vein, mesenteric vein, superior mesenteric vein, head vein and / or femoral vein.
- Arteries include the coronary arteries, the pulmonary arteries, the brachial artery, the internal carotid artery, the aortic arch, the femoral artery, the peripheral artery, and / or the ciliary artery. It is not. It is contemplated that they can be delivered through the arterioles or capillaries, or into the arterioles or capillaries.
- the intravascular administration of the composition for delivering intravascular bioactive substance of the present invention is carried out by inserting a catheter into the blood vessel of a target tissue or a cell in order to effectively deliver the physiologically active substance carried on the porous silica particles, .
- the physiologically active substance carried on the surface of the porous silica particles may be washed away by the flow of the blood stream, or the diffusion of the physiologically active substance carried on the surface of the porous silica particles or inside the pores may be reduced by diffusion And it has an advantage that it is possible to increase the target of transferring the supported physiologically active substance.
- the present invention provides a pharmaceutical composition for treating a specific disease comprising the composition for delivering an intravascular bioactive substance.
- beneficial or desired clinical results include, but are not limited to, alleviation of symptoms, reduction in the extent of disease, stabilization (i.e., not worsening) of the disease state, (Either partially or totally), detectable or undetected, whether or not an improvement or temporary relief or reduction
- treatment may mean increasing the survival rate compared to the expected survival rate when not receiving treatment. Treatment refers to both therapeutic treatment and prophylactic or preventative measures. Such treatments include treatments required for disorders that have already occurred as well as disorders to be prevented.
- prevention means any action that inhibits or delays the onset of a related disease. It will be apparent to those skilled in the art that the compositions herein may prevent early onset symptoms, or related disorders when administered prior to appearance.
- the specific disease is selected from the group consisting of hepatocellular carcinoma, metastatic liver cancer, colon cancer, metastatic colorectal cancer, lung cancer, metastatic lung cancer, gastric cancer, pancreatic cancer, metastatic pancreatic cancer, skin cancer, melanoma, metastatic melanoma, osteosarcoma, fibrosarcoma, lipoma, Neoplasms, cancer of the bladder, cancer of the cervix, cancer of the uterine cervix, ovarian cancer, breast cancer, head and neck cancer, thyroid cancer and kidney cancer, brain cancer, glioblastoma, tumor of the endometrium, metastasis of the lymph node metastasis, blood cancer, leukemia, Hodgkin's lymphoma, Lymphoma, malignant lymphoma, myelodysplastic syndrome, acute lymphoblastic leukemia, acute myelogenous leukemia, chronic lymphocytic leukemia, chronic myelogenous leukemia, isolated myel
- the present invention relates to the use of a compound of formula (I) in the manufacture of a medicament for the treatment or prevention of a disease or condition selected from the group consisting of infectious diseases, viral infections, bacterial infections, rheumatoid arthritis, diabetic complications, foot ulcers, neuropathies, Selected from the group consisting of skin disease, pressure ulcer, vascular disease, arterial disease, venous disease, lymphatic disease, cardiovascular disease, ischemic heart disease, cerebrovascular disease, hypertension, dyslipidemia, atherosclerosis, peripheral vascular disease, But is not limited thereto.
- a disease or condition selected from the group consisting of infectious diseases, viral infections, bacterial infections, rheumatoid arthritis, diabetic complications, foot ulcers, neuropathies, Selected from the group consisting of skin disease, pressure ulcer, vascular disease, arterial disease, venous disease, lymphatic disease, cardiovascular disease, ischemic heart disease, cerebrovascular disease, hypertension, dyslipidemia, atherosclerosis, peripheral vascular disease, But is not limited there
- the pharmaceutical composition for preventing or treating the above-mentioned diseases comprising the porous silica particles carrying the physiologically active substance of the present invention may further comprise a pharmaceutically acceptable carrier and may be formulated together with the carrier.
- a pharmaceutically acceptable carrier refers to a carrier or diluent that does not irritate the organism and does not interfere with the biological activity and properties of the administered compound.
- the pharmaceutical carrier which is acceptable for the composition to be formulated into a liquid solution include sterilized and sterile water, sterile water, Ringer's solution, buffered saline, albumin injection solution, dextrose solution, maltodextrin solution, glycerol, One or more of these components may be mixed and used.
- diluents, dispersants, surfactants, binders, and lubricants may be additionally added to formulate into injectable solutions, pills, capsules, granules or tablets such as aqueous solutions, suspensions, emulsions and the like.
- composition of the present invention can be applied to any formulation containing the porous silica particles carrying the physiologically active substance of the present invention as an active ingredient and can be manufactured into oral or parenteral formulations.
- the pharmaceutical formulations of the present invention may be administered orally, rectally, nasal, topical (including under the ball and tongue), subcutaneous, vaginal or parenteral (intramuscular, subcutaneous And intravenous), or forms suitable for administration by inhalation or insufflation.
- composition of the present invention is administered in a pharmaceutically effective amount. Effective dose levels will depend on factors well known in the art and other medical disciplines including the type of disease, severity of the patient, activity of the drug, sensitivity to the drug, time of administration, route of administration and rate of release, duration of treatment, Can be determined.
- the composition of the present invention can be administered as an individual therapeutic agent or in combination with other therapeutic agents, and can be administered sequentially or simultaneously with conventional therapeutic agents, and can be administered singly or in multiple doses. It is important to take into account all of the above factors and to administer the amount in which the maximum effect can be obtained in a minimal amount without side effects, which can be easily determined by those skilled in the art.
- the dosage of the composition of the present invention varies depending on the patient's body weight, age, sex, health condition, diet, time of administration, administration method, excretion rate, severity of disease and the like.
- the amount of the drug accumulated in the body and / or the specific activity of the porous silica particle carrying the physiologically active substance used. May be calculated on the basis of the EC50 generally measured as effective in the in vivo animal model and in vitro, for example from 0.01 [mu] g to 1 g per kg of body weight and may be divided into daily, weekly, monthly, May be administered once or several times per unit period, or may be continuously administered for a long period using an infusion pump.
- the number of repeated administrations is determined in consideration of the duration of the drug in the body, the drug concentration in the body, and the like.
- the composition may be administered for recurrence, even after treatment according to the course of the disease treatment.
- composition of the present invention may further contain one or more active ingredients which exhibit the same or similar functions with respect to the treatment of the above-mentioned diseases, or a compound which maintains / increases the solubility and / or absorbency of the active ingredient. Also optionally, it may further comprise a chemotherapeutic agent, an anti-inflammatory agent, an antiviral agent and / or an immunomodulator.
- compositions of the present invention may be formulated using methods known in the art so as to provide rapid, sustained or delayed release of the active ingredient after administration to the mammal.
- the formulations may be in the form of powders, granules, tablets, emulsions, syrups, aerosols, soft or hard gelatine capsules, sterile injectable solutions, sterile powders.
- the present invention provides a composition for embolization comprising the composition for delivering an intravascular bioactive substance.
- the physical properties of the porous silica particles used in the embolization composition are not largely different from those of the above-mentioned particles, but the particles can be adjusted to an appropriate size according to the purpose of embolization.
- nanometer-sized particles are used to enter the microvessel inside the tumor tissue to prevent blood flow to the tumor tissue and prevent the flow of oxygen and nutrients to the tumor tissue while accumulating in blood vessels and tumor vessels to the tumor tissue While micrometric sized particles can be used to block the arteries connected to the tumor tissue, allowing embolization of a wider range of tumor tissues.
- the average diameter of the particles may be, for example, 100 nm to 1000 nm, and may be, for example, 100 nm to 800 nm, 100 nm to 500 nm, 100 nm to 400 nm, 300 nm, and 100 nm to 200 nm, but is not limited thereto.
- the average diameter of the particles may be, for example, 0.1 to 500 ⁇ m, 0.1 to 300 ⁇ m, 100 to 300 ⁇ m, 300 ⁇ m to 500 ⁇ m, 0.1 ⁇ m to 100 ⁇ m, 0.1 Mu m to 1 mu m, and 0.2 mu m to 0.8 mu m, but is not limited thereto.
- the porous silica particles are biodegradable particles as described above, and can be decomposed by body fluids or microorganisms in vivo, so that the anticancer agent can be released in a sustained manner over a period of several hours to several hundreds of hours after the injection, It is possible to re-inject into the same pathway (blood vessel) during the second procedure when the tumor is not completely necrotized / killed after the chemoembolization procedure because it is not permanently blocked.
- composition is selected from the group consisting of polyvinyl alcohol, contrast agent, iodized oil, oil contrast agent, oil contrast agent, barium contrast agent, lipiodol, N-butylcyanoacrylate, coil, gel foam, Silica, fumed silica, polymers, copolymers, polysodium acrylate vinylalcohol copolymers, radiation materials, glass, poly-L-guluronic alginate, Polyglycolic-polyactic acid, polydioxanone, polyglycolic acid-co-caprolactone, polypropylene and polypropylene having a diameter of 10 ⁇ m or more And porous silica particles.
- emulsion of the present invention can be mixed with the porous silica particles of the present invention to form a stable emulsion in consideration of common sense in the art to perform embolization as an emulsion- Contrast agent or lipiodol can be selected.
- Administration of the composition may be through a catheter having the advantages described above and may be administered to a vessel directly connected to the tumor via a catheter to inhibit damage to normal tissue and to increase the target uptake Effect can be obtained.
- Diseases that can be used for embolization using the above composition include hepatocellular carcinoma, metastatic liver cancer, colon cancer, metastatic colorectal cancer, lung cancer, metastatic lung cancer, gastric cancer, pancreatic cancer, metastatic pancreatic cancer, skin cancer, melanoma, metastatic melanoma, osteosarcoma, , Lipoma, gallbladder cancer, intrahepatic cholangiocarcinoma, bladder cancer, uterine cancer, cervical cancer, ovarian cancer, breast cancer, head and neck cancer, thyroid cancer and kidney cancer, brain cancer, glioblastoma, tumor of the endometrium, metastatic lymph node metastasis, blood cancer, leukemia, Lymphoma, multiple myeloma, lymphoma, malignant lymphoma, myelodysplastic syndrome, acute lymphoblastic leukemia, acute myelogenous leukemia, chronic lymphocytic leukemia, chronic myelogenous leukemia, isolated myelo
- porous silica particles of the present invention may be referred to as Degrada Ball (trademark registration number 40-1292208).
- reaction solution was centrifuged at 8000 rpm for 10 minutes at 25 DEG C to remove the supernatant, centrifuged at 8000 rpm for 10 minutes at 25 DEG C, and washed five times with ethanol and distilled water alternately.
- microporous porous silica particles 1.5 g were added to 10 ml of ethanol and ultrasonically dispersed. 10 ml of water and 10 ml of trimethyl benzene (TMB) were added and ultrasonically dispersed.
- TMB trimethyl benzene
- the reaction was carried out by starting at 25 ° C and heating at a rate of 10 ° C / min and then slowly cooling down at a rate of 1 to 10 ° C / min in an autoclave.
- the cooled reaction solution was centrifuged at 8000 rpm for 10 minutes at 25 DEG C to remove supernatant, centrifuged at 8000 rpm for 10 minutes at 25 DEG C, and washed five times with ethanol and distilled water alternately.
- the porous silica particles prepared in 2) were placed in a glass vial and heated at 550 ° C for 5 hours. After completion of the reaction, the particles were gradually cooled to room temperature to prepare particles.
- Porous silica particles were prepared in the same manner as in Example 1- (1), except that the reaction conditions at the time of pore expansion were changed to 140 ⁇ and 72 hours.
- porous silica particles were prepared in the same manner as in item (1) of Example 1-9, except that a 5-fold vessel was used and all the materials were used in a 5-fold volume.
- Porous silica particles were prepared in the same manner as in Example 1- (1), except that 920 ml of distilled water and 850 ml of methanol were used in the preparation of the small pore particles.
- Porous silica particles were prepared in the same manner as in Example 1- (1), except that 800 ml of distilled water, 1010 ml of methanol and 10.6 g of CTAB were used in the preparation of small pore particles.
- Porous silica particles were prepared in the same manner as in Example 1- (1), except that 620 ml of distilled water, 1380 ml of methanol and 7.88 g of CTAB were used in the preparation of the small pore particles.
- Porous silica particles were prepared in the same manner as in Example 1- (1) except that 2.5 mL of TMB was used at the time of pore expansion.
- Porous silica particles were prepared in the same manner as in Example 1- (1) except that 4.5 mL of TMB was used at the time of pore expansion.
- Porous silica particles were prepared in the same manner as in Example 1- (1) except that 11 mL of TMB was used at the time of pore expansion.
- Porous silica particles were prepared in the same manner as in item (1) of Example 1-9 except that TMB was used at 12.5 mL at the time of pore expansion.
- Example 1- (1) -2 The small pore particles were reacted with TMB in the same manner as in Example 1- (1) -2), cooled, and centrifuged to remove the supernatant. Thereafter, the mixture was centrifuged under the same conditions as in Example 1- (1) -2), washed three times with ethanol and distilled water alternately, and then dried under the same conditions as in Example 1- (1) -2) Silica particles (pore diameter 10 to 15 nm, particle diameter 200 nm) were obtained.
- the reaction solution in the previous step remains in the pores, and the inside of the pores are not modified.
- the cooled reaction solution was centrifuged at 8000 rpm for 10 minutes to remove the supernatant, centrifuged at 8000 rpm for 10 minutes at 25 DEG C, and washed five times with ethanol and distilled water alternately.
- Example 1- (4) The porous silica particles of Example 1- (4) were reacted with (3-Aminopropyl) triethoxysilane (APTES) to positively charge.
- APTES (3-Aminopropyl) triethoxysilane
- porous silica particles were dispersed in 10 mL of toluene in a 100 mL round bottom flask with a bath sonicator. Then, 1 mL of APTES was added, and the mixture was stirred at 400 rpm and stirred at 130 DEG C for 12 hours.
- the mixture was slowly cooled to room temperature, centrifuged at 8000 rpm for 10 minutes to remove the supernatant, centrifuged at 8000 rpm for 10 minutes at 25 ° C, and washed 5 times with ethanol and distilled water.
- Example 1- (1) The porous silica particles of Example 1- (1) were reacted with (3-aminopropyl) triethoxysilane (APTES) and charged positively. 0.4 ml of APTES was added and the reaction time was changed to 3 hours Was modified in the same manner as in Example 2- (1) -1).
- APTES (3-aminopropyl) triethoxysilane
- Example 2- The porous silica particles of Example 1- (9) were reacted with (3-Aminopropyl) triethoxysilane (APTES) and positively charged.
- APTES (3-Aminopropyl) triethoxysilane
- Example 3- (10) were reacted with (3-Aminopropyl) triethoxysilane (APTES) and charged positively, and modified in the same manner as in Example 2- (1) -1.
- APTES (3-Aminopropyl) triethoxysilane
- Example 1- (1) -1) Porous silica particles subjected to the procedure of Example 1- (1) -1) and then subjected to the procedure of Example 1- (1) -3) were reacted with (3-Aminopropyl) triethoxysilane (APTES) The method was modified in the same manner as in Example 2- (1) -1).
- APTES (3-Aminopropyl) triethoxysilane
- the porous silica particles of Example 2- (1) -3) -2 were charged and positively charged by reacting with glutaraldehyde (GA).
- porous silica particles were dispersed in 10 mL of distilled water in a 100 mL round bottom flask with a bath sonicator. Then, 10 mL of GA was added, and the mixture was stirred at 400 rpm at room temperature for 24 hours.
- the supernatant was removed by centrifugation at 8000 rpm for 10 minutes, centrifuged at 8000 rpm for 10 minutes at 25 ° C, and washed 5 times with distilled water.
- Example 1- (1) The porous silica particles of Example 1- (1) were reacted with trimethoxy (propyl) silane to introduce a propyl group into the surface and pores, except that 0.35 ml of trimethoxy (propyl) silane was added instead of APTES and reacted for 12 hours , The modification was carried out in the same manner as in Example 2- (1).
- Example 1- (1) The porous silica particles of Example 1- (1) were reacted with trimethoxy-n-octylsilane to introduce a propyl group into the surface and pores, except that 0.5 ml of trimethoxy-n-octylsilane was added instead of APTES and the reaction was carried out for 12 hours , The modification was carried out in the same manner as in Example 2- (1).
- Example 1- (1) The porous silica particles of Example 1- (1) were reacted with succinic anhydride to negatively charge.
- DMSO dimethyl sulfoxide
- 80 mg of succinic anhydride was added instead of APTES, (1) -1), except that DMSO was used instead of distilled water at the time of washing.
- Example 2- (3) -2 100 mg of the porous silica particles of Example 2- (3) -2) was dispersed in 1 mL of 1 M aqueous sulfuric acid solution and 20 mL of 30% aqueous hydrogen peroxide, stirred at room temperature to induce oxidation reaction, and the thiol group was oxidized with a sulfonic acid group. Thereafter, it was washed and dried in the same manner as in Example 2- (1) -1).
- porous silica particles were dispersed in 10 mL of distilled water in a 100 mL round bottom flask with a bath sonicator. Then, 3 mL of THMP and 1.5 mL of 1 M HCl aqueous solution were added and stirred at 400 rpm at 130 ° C for 24 hours.
- the mixture was slowly cooled to room temperature, centrifuged at 8000 rpm for 10 minutes to remove the supernatant, centrifuged at 8000 rpm for 10 minutes at 25 ° C, and washed 5 times with distilled water.
- Example 1- (1) 100 mg of the porous silica particles of Example 1- (1) were dispersed in 20 ml of N, N'-disuccinimidyl carbonate (DSC) solution having a concentration of 50 ⁇ g / ml and stirred at room temperature to bind the surface of the porous silica particles with DSC.
- the particles were washed three times with 10 ml of distilled water, and 10 mg of PEG (HO-PEG-NH 2 ) having a molecular weight of 4 kDa and an amino group at the end were dispersed in 10 ml of the above solution.
- the mixture was stirred at room temperature to obtain a porous silica particle surface So that the PEG can be connected. Thereafter, it was washed and dried in the same manner as in Example 2- (1) -1).
- Doxorubicin was loaded onto the porous silica particles of Example 2- (3) -4) having a negative charge.
- porous silica particle powder 5 mg was mixed under distilled water, and the mixture was allowed to stand at room temperature for 1 hour.
- Sorapanib was loaded onto the porous silica particles of Example 1- (11) -5) -1.
- porous silica particle powder and 2 mg of sorafenib were mixed with 1 ml of deionized water / ethanol (5: 5 mixing ratio (volume ratio)), followed by incubation at room temperature for 1 hour. Then washed three times with 1 ml deionized water.
- porous silica particles particles of Example 1- (11) -5) -2 were used.
- the mimic sequence is related to the sequence of the hydrophobic secondary helical structure part where the p53 protein binds to the hMDM2 protein.
- the p53 peptide acts as an antagonist of the hMDM2 protein.
- amino acid sequence of the p53 peptide (Cal. m.w. 2596.78, found by MALDI-TOF 2597.92) is the same as in the following formula (1) (N-terminal to C-terminal).
- X is an unnatural amino acid introduced with an azide functional group, 2-amino-5-azido-pentanoic acid, Y is an unnatural amino acid introduced with an alkyne functional group, and the side chain of D-Lys ) With 4-pentynoic acid;
- X and Y are connected to form a triazole by an azide-alkyne cycloaddition reaction or a click reaction;
- p53 peptide 1.3 mg (500 nmole) of p53 peptide was dissolved in 100 ⁇ l of DMSO, and 5 ml of an aqueous solution obtained by dissolving 5 mg of the porous silica particle powder in 15 ml of conical tube was mixed and then incubated at room temperature for 12 hours.
- porous silica particles loaded with the p53 peptide were purified by centrifugation (9289 rcf, 8500 rpm, 20 min, 15 mL conical tube) and washing with water three times.
- 5 '-GGCUACGUCCAGGAGCGCACC-3' (SEQ ID NO: 1), antisense; 5 '-GGCUACGACCAGGAGCGCACC-3' (SEQ ID NO: 1) was purchased from Bioneer, Inc. for synthesis of 21 base pair duplex siRNA targeting green fluorescent protein (GFP) - UGCGCUCCUGGACGUAGCCUU-3 '(SEQ ID NO: 2)).
- GFP green fluorescent protein
- Plasmid DNA (SEQ ID NO: 5) of 6.7k base pair designed to express GFP with pcDNA3.3 backbone was produced in bacteria and used after purification.
- Example 2- (3) -4) -2 100 ⁇ g of the porous silica particle powder of Example 2- (3) -4) -2 was mixed with 50 ⁇ g of anti-PD-1 (BioXCell, BP0146) in 100 ⁇ l of distilled water, followed by incubation at room temperature for 5 minutes.
- anti-PD-1 BioXCell, BP0146
- FIG. 1 is a photograph of the porous silica particles of Example 1- (1)
- FIG. 2 is a photograph of the porous silica particles of Example 1- (2) to confirm that spherical porous silica particles sufficiently expanded in pore size Can,
- Fig. 3 is a photograph of small pore particles of Example 1- (1)
- Fig. 4 is a photograph of small pore particles of Example 1- (1) and Example 1- (3) Is generated evenly.
- the surface area and the pore volume of the small pore particles of Example 1- (1) and the porous silica particles of Examples 1- (1), (7), (8) and (10) were calculated.
- the surface area was calculated by the Brunauer-Emmett-Teller (BET) method and the pore size distribution was calculated by the Barrett-Joyner-Halenda (BJH) method.
- porous silica particles are almost completely decomposed after 360 hours of biodegradation.
- a 0 is the absorbance of the porous silica particles measured by placing 5 ml of the 1 mg / ml suspension of the porous silica particles in a cylindrical permeable membrane having pores having a diameter of 50 kDa,
- a t is the absorbance of the porous silica particles measured after passage of time t from the measurement of A 0 ).
- porous silica particle powder 5 mg was dissolved in 5 ml of SBF (pH 7.4). Thereafter, 5 ml of the porous silica particle solution was placed in the permeable membrane having pores of 50 kDa in diameter shown in Fig. 15 ml of SBF was added to the outer membrane, and SBF of the outer membrane was replaced every 12 hours.
- porous silica particles of the examples have significantly larger t than the control.
- the positively charged particles had a t value of 20 or more, in which the ratio of the absorbance was 1/2.
- porous silica particles loaded with doxorubicin 1 mg are dispersed in SBF (pH 7.4) (total volume 1 ml) and the solution is placed in a 1.5 ml tube and maintained in dynamic conditions with horizontal stirring at 37 ° C and 20 rpm .
- doxorubicin is loaded relatively weakly with the surface of the particles and relatively fast release due to its high solubility in the SBF of doxorubicin, about 1.5 hours to 50% It can be seen that the physiologically active substance is continuously released over a period of time.
- doxorubicin is loaded with a relatively weak binding force to the particle surface, and since it is highly soluble in doxorubicin SBF, about 6 days have elapsed to reach 50% It can be seen that the physiologically active substance is continuously released.
- sorafenib which is an insoluble physiologically active substance, is released very slowly due to interaction with porous silica particles having a hydrophobic substituent.
- retinoic acid-loaded particles were added to a solution of 5% ethanol in PBS (pH 7.4), and the temperature was maintained at 37 ⁇ with constant stirring. The solution containing the particles was centrifuged every 24 hours, and the absorbance of the supernatant was measured at a wavelength of 350 nm to measure the amount of retinoic acid released. The results are shown in FIG.
- retinoic acid having a negative charge is released very slowly by interaction with positively charged porous silica particles, and is released to almost 100% at about 10 days.
- the p53 peptide is loaded in the porous silica particles as a binding force through the hydrophobic effect and is not released in the PBS solution.
- a protein such as FBS (fetal bovine serum)
- FBS fetal bovine serum
- the p53 peptide binds to the hydrophobic segment of the FBS protein and can be dissolved in the solution, and is released outside the porous silica particle have.
- the p53 peptide loaded inside the particle may be released outside the particle, and the FBS protein may be introduced into the particle.
- the 50% release time of the siRNA is about 6 hours.
- porous silica particles linear DNA 3 ⁇ g, porous silica particles 100 ⁇ g loaded with Linear DNA were resuspended in PBS (pH 7.4, 37 ⁇ ) and a permeation membrane (the same tube as the tube in Fig. 18) , And the permeate tube was immersed in 1.5 ml of PBS. Release of plasmid DNA was performed at 37 ° C with 60 rpm horizontal stirring.
- Release solvents were withdrawn at time intervals of 0.5, 1, 2, 3, 4, 6, 12, and 24 hours prior to 24 hours, followed by 24 hour intervals of 0.5 ml of release solvent for Hoechst-binding assay And an equal volume of PBS was added.
- the 50% release time of the linear DNA is about 24 hours.
- IgG is released slowly in both SBF and PBS, and is released to almost 100% over 250 hours.
- release rate is higher in PBS in the initial stage and higher in release rate in SBF (100 hours to the divergence point), and the antibody was continuously released for more than 250 hours.
- porous silica particles loaded with the Cas9 protein / guide RNA complex were suspended in PBS (pH 7.4), and the porous silica particles were immersed in a slide glass on which 50,000 NIH 3T3 cells, known as mouse fibroblasts, Treated with serum free media and incubated at 5% CO 2 and 37 ° C.
- the medium was removed at 1 hour, 3 hours, 6 hours, 24 hours, washed with 1x PBS solution, and fixed with 4% paraformaldehyde for 15 minutes.
- the cells were incubated in blocking buffer (1x PBS, 5% normal goat serum, 0.3% triton X-100) for 1 hour.
- the His tag antibody (Santa Cruz, sc-8036) was incubated for 16 hours.
- anti-mouse secondary antibody (Abcam, ab150113) with Alexa Fluor 488 was incubated for 2 hours.
- DAPI is a nuclei staining reagent, which is blue in the fluorescence microscope image and shows the position of the cell nucleus.
- Alexa Fluor 488 is a fluorescent dye labeled with Cas9 protein, which appears green in the fluorescence microscopic image and shows the location of the Cas9 protein in the cell.
- Cells loaded with Cas 9 protein labeled with Alexa Fluor488 were treated with DAPI stain and the presence of Cas9 protein in the cells and the position of the nucleus can be confirmed by fluorescence microscopy images.
- Cas9 protein introduced into the cell was observed mainly in the cytoplasmic part at 3 hours after the introduction and observed in the nucleus at 24 hours after the introduction. It is almost impossible for the used silica particles themselves to enter into the nucleus, and therefore it can be seen that Cas9 protein is released from the silica particles at 24 hours in the cell, and is introduced into the nucleus known as an intracellular organelle in which Cas9 protein is originally accumulated .
- Balb / c nude male (5 weeks old) was purchased from Orient Bio Inc., and 3 million HeLa cells (cervical cancer cells) were dispersed in sterilized 1x PBS.
- Xenograft tumors were subcutaneously injected into mice to grow 70 mm when the solidification of the 3 tumor size is confirmed, PBS, FITC- porous silica particles (example 2 (1) -2) the porous silica particles), porous silica particles FITC- loaded the Cy5-siRNA of -2 (prepared (Porous silica particles of Example 2- (1) -2) -2) were injected into mouse tumors, respectively.
- fluorescence intensity and distribution were measured by FOBI fluorescence in vivo imaging system , Korea).
- the FITC label was prepared by dispersing 50 mg of silica particles in 1 mL of DMSO and adding 25 ⁇ g (10 ⁇ l) of a solution of FITC-NHS (2.5 mg / mL) into the flask and blocking the light with aluminum foil. The reaction mixture was centrifuged at 8500 rpm for 10 minutes. The supernatant was discarded and the precipitated particles were dispersed evenly in ethanol. This was repeated 3-4 times with ethanol-distilled water and FITC color was added to the supernatant. And purification was carried out until it was not seen. The results are shown in Fig. 27 (A).
- FIG. 27 (A) control was performed with PBS alone, cy5-siRNA alone with cy5-siRNA, FITC-DDV with porous silica particles singly labeled with FITC, complex with cy5-siRNA loaded and FITC-labeled porous silica particles , It can be confirmed that the siRNA transferred into the body on the particle has a longer period of maintaining the activity and stays longer in the injected region and shows strong fluorescence even after 48 hours .
- Xeno was prepared in a Balb / C nude mouse using HepG2 cells, a human liver cancer cell line, and when the size (50-100 mm 3 ) suitable for the experiment was reached, doxorubicin was added to the particles of Example 2- (3) -4) -1 After being carried, it is dispersed in 100 ⁇ l of PBS solution, and then injected through the mouse vein.
- the dose of doxorubicin is 4 mg / kg (mouse body weight), 80 ⁇ g of doxorubicin and 160 ⁇ g of particles are used based on 20 g of average weight of Balb / C nude mice aged 5 to 8 weeks old.
- Xeno was prepared in a Balb / C nude mouse using MDA-MB-231 cells, a human breast cancer cell line, and when the size was appropriately set (50-100 mm 3 )
- the particles were loaded with VEGF inhibitory siRNA (SEQ ID NO: 7 sense; 5'-GGAGUACCCUGAUGAGAUCdTd-3 ', SEQ ID NO: 8 antisense; 5'-GAUCUCAUCAGGGUACUCCdTdT-3') and dispersed in 100 ⁇ l of PBS solution. do.
- the amount of VEGF inhibition siRNA injected is 1 mg / kg (mouse body weight) and 20 ⁇ g of siRNA and 400 ⁇ g of particles are used based on the average weight of 5 to 8 weeks old Balb / C nude mice.
- Xeno was prepared in a Balb / C nude mouse using HeLa cells as a human cervical cancer cell line, and when the size (50-100 mm 3 ) suitable for the experiment was reached, RNase A was carried on the particle of Example 1- (9) PBS solution (100 ⁇ l) and then injected through the mouse vein.
- the amount of Rnase A injected is 2 mg / kg (mouse body weight) and 40 ⁇ g of Rnase A and 400 ⁇ g of particles are used based on 20 g of average weight of Balb / C nude mice aged 5 to 8 weeks old.
- Xeno was prepared in Balb / C nude mice using HeLa cells, a human cervical cancer cell line. When the size of the Xeno was 50-100 mm 3 , After the peptide is loaded, it is dispersed in 100 ⁇ l of PBS solution, and then injected through the mouse tail vein. The amount of p53 peptide injected is 2.5 mg / kg (mouse body weight), and 50 ⁇ g of p53 peptide and 200 ⁇ g of particles are used based on 20 g of average weight of Balb / C nude mice aged 5 to 8 weeks.
- doxorubicin, VEGF inhibitory siRNA, Rnase A, or p53 were loaded on the porous silica particles of the present invention, doxorubicin, VEGF inhibiting siRNA, Rnase A or p53 alone
- the inhibition of tumor growth and the suppression of VEGF expression are superior to those in the case of injection. This is considered to be due to the intrinsic properties of the particles of the present invention, such as excellent transduction and biodegradability in the blood vessel.
- the composition containing the porous silica particles mixed with the contrast agent of the present invention which is mixed with the contrast agent, can be accurately detected without blocking the catheter and the blood vessel without precipitation or aggregation, Can be confirmed.
- porous silica particles 100 ⁇ g of the porous silica particles are dispersed in 1 ml of PBS (pH 7.4), transferred to a disposable folded capillary cell (DTS1070), and mounted on a zeta potential measuring device to measure the zeta potential.
- PBS pH 7.4
- DTS1070 disposable folded capillary cell
- P O vibration peak, P-CH 3 rocking peak and P-CH 3 wagging peak appear in the FT-IR spectrum, indicating that anionic functional groups are introduced on the surface of the particles, Able to know.
- the porous silica particles can have various ranges of zeta potential depending on which functional group is modified, and that the types of supported physiologically active substances to be desired are diversified. Specifically, it can be seen that the porous silica particles of the present invention exhibit a zeta potential of + 3 mV or more and -18 mV or less, and a biomodified active material to be supported by double modification (for example, PEG) As shown in FIG.
- Example 1- Si-OH (unmodified) Negative charge (about -18mV)
- Example 2- (3) -5) CHO Positive charge (approximately + 8mV) Molecules that can form schiff base (imine) linkage
- Example 1- (11) -5) (2)
- Example 1 1- particles and 10 mg of 2- (3) -4) - (1) were dispersed in 1 ml of PBS solution and 25% plasma solution, and the mixture was allowed to stand at room temperature for 1 hour. To compare the amount of particles that can not be dispersed. The absorbance of the supernatant was compared to compare the amount of particles stably dispersed in the PBS solution and the 25% plasma solution.
- Example 1- (1) and 2- (3) -4) -1 are sequentially prepared at a concentration as low as 20 mg, which is the highest concentration, and dispersed in 0.8 ml of PBS solution.
- 0.2 ml of the erythrocyte solution dispersed in the PBS solution is added, shaded at room temperature, and placed in a rotary stirrer at 80 rpm for 4 hours. After 4 hours, centrifuge at 10,000 rpm, 3 minutes, and 4 ° C to completely absorb the particles, and measure absorbance at 577 nm in the supernatant to compare the hemolysis of erythrocytes.
- 0.8 ml of distilled water is used instead of the particle-dispersed solution.
- 0.8 ml of PBS solution is used instead of the particle-dispersed solution.
- the degree of precipitation or aggregation of the porous silica particles of the present invention is remarkably low in both the PBS aqueous solution condition and the 25% plasma solution condition. More specifically, in the PBS aqueous solution and the 25% plasma solution, The sedimentation rate of the particles of the present invention was only 80% and 70%, while that of the present invention was only 4% and 5%, respectively. This is because the surface treatment of the porous silica particles of the present invention produced a surface charge (zeta potential (mV)) and induced a repulsive force between the particles to maintain a stable solution.
- zeta potential (mV) zeta potential
- FIG. 30 it can be confirmed that hemolysis with erythrocytes does not occur even when the particles of the present invention are treated at a high concentration.
- FIG. 31 it can be confirmed that the degree of hemolysis of red blood cells is increased in the case of the porous silica particles (Silanol-MSN) whose surface is not modified by other functional groups, depending on the concentration of the particles.
- silica particles of the present invention are mostly modified with other functional groups including a sulfonate group, an aldehyde group, a polyethylene glycol group, a methylphosphonate group and an amine functional group instead of a silanol group on the surface, It is believed that the interaction is not strong and the interaction is low due to the small surface area that can contact the red blood cells due to the porous structure having numerous pores and the hemolysis of erythrocytes is significantly lower than that of the conventional silica particles due to the diameter of 100 nm or more .
- Example 2- (3) -4) -1 which is negatively charged
- the absorbance of the supernatant is measured to determine the amount of doxorubicin carried, and the loading ratio is calculated.
- Example 2- (1) -2) to the porous silica particles to the retinoic acid solution of 100 ⁇ g -1 (50mM ethanol) was added to 1ml and the loading for 4 hours at room temperature, except that the measurement of absorbance at ⁇ 350nm ab was carried out in the same manner as in Experimental Example 9- (1) -1).
- Example 2- (1) -3) -2 with positively charged siRNA is loaded into the supernatant, and the siRNA remaining in the supernatant is measured to determine the amount of siRNA to be carried, and the supporting ratio is calculated.
- 20 ⁇ g of porous silica particles were dispersed in 10 ⁇ l of PBS aqueous solution, and 1 ⁇ g of siRNA was mixed and allowed to stand at room temperature for 30 minutes. Then, the solution was centrifuged at 8000 rpm for 10 minutes, and the amount of siRNA remaining in the supernatant was measured by polyacrylamide gel electrophoresis (PAGE) and the amount of siRNA carried on the particle was calculated.
- PAGE polyacrylamide gel electrophoresis
- Example 2- (1) -3) -2 with positively charged mRNA having a sequence of the following formula 2 was loaded on the particle, and the mRNA remaining in the supernatant was measured to determine the amount of the mRNA to be carried, do.
- 20 ⁇ g of porous silica particles were dispersed in 10 ⁇ l of PBS aqueous solution, 1 ⁇ g of mRNA was mixed, and the mixture was allowed to stand at room temperature for 30 minutes. Then, the solution was centrifuged at 8000 rpm for 10 minutes, and the amount of mRNA remaining in the supernatant was measured using agarose gel, and the amount of mRNA supported on the particle was calculated.
- Example 2- (1) -3) -3) Positively charged pDNA is loaded on the particles, and the amount of pDNA retained in the supernatant is measured to calculate the amount of pDNA to be carried.
- 20 ⁇ g of porous silica particles were dispersed in 10 ⁇ l of PBS aqueous solution, 1 ⁇ g of pDNA was mixed, and the mixture was allowed to stand at room temperature for 30 minutes. Then, the solution was centrifuged at 8000 rpm for 10 minutes, and the amount of pDNA remaining in the supernatant was measured using agarose gel, and the amount of pDNA supported on the particle was calculated.
- Example 2- (1) -3) -3) with positive charge After loading linear DNA into the particles, measure the remaining pDNA in the supernatant, calculate the amount of linear DNA supported, and calculate the loading ratio. Specifically, 20 ⁇ g of porous silica particles were dispersed in 10 ⁇ l of PBS aqueous solution, 1 ⁇ g of linear DNA was mixed, and the mixture was allowed to stand at room temperature for 30 minutes. Then, the solution was centrifuged at 8000 rpm for 10 minutes, and the amount of linear DNA remaining in the supernatant was measured using an agarose gel, and the amount of lnear DNA carried on the particle was calculated.
- Example 9- (1) -9) -1 100 ⁇ g of the porous silica particle powder of Example 2- (1) -2) -2) and 10 ⁇ g of anti-twist IgG (Santacruz, sc-81417) were mixed in 200 ⁇ l of 1 ⁇ PBS, and the mixture was incubated at room temperature for 1 hour to be loaded.
- the procedure of Example 9- (1) -9) -1 was carried out in the same manner as described above.
- Bioactive substances Loading capacity (w / w%) Small molecules : irinotecan, sorafenib, regorafenib, tamoxifen, gefitinib, erlotinib, afatinib, bleomycin, dactinomycin, daunorubicin, idarubicin, plicamycin, mitoxantrone, epirubicin, carboplatin, oxaliplatin, 5-fluorouracil, gemcitabine, temozolomide, alkylating agents (cisplatin, chlorambucil, antimetabolites, cytotoxic agents (bleomycin, mitomycin, etc.), topoisomerase inhibitors (etoposide, doxorubicin, etc.), anti-microtubule agents (vinblastine, paclitaxel, , metformine, etc 10-30 Antibodies: specific target antibodies for PD- 1, PD-L1, CTLA4, LAG3, OX40
- HepG2 cells were plated on a 96-well plate at a rate of 10,000 cells / well. After 24 hours, the cells of Example 2- (3) -4) were sequentially dispersed from low concentration to 1 mg at the highest concentration for 24 hours. (CCK) was used to confirm the survival rate of HepG2 cells. The results are shown in Fig.
- the composition containing the porous silica particles of the present invention had no effect on the survival rate of the HepG2 cell line regardless of the concentration, and thus it can be confirmed that there is no cytotoxicity.
- An emulsion was formed by mixing 1.6 ml of lipiodol widely used as an embolization substance and 0.4 ml of porous silica particle carrying doxorubicin, and the emulsion was dropped on a transparent plastic plate in a droplet form, and then photographed with a fluorescence microscope. .
- the emulsion type (B) in which the porous silica particles are mixed with respect to the lipiodol single emulsion (A) maintains the emulsion having a uniform size for a long time.
- the kidneys were examined by taking a photograph of the liver and the infarction area of the liver was visually confirmed and the normal liver tissue was damaged.
- porous silica particles with fluorescence on the surface of the particles For the porous silica particles with fluorescence on the surface of the particles, graft the tumor, liver, spleen and kidney of the rabbits collected after TACE, and add 2 ml of 1.5% hydrochloric acid-ethanol solution per 1 g of each tissue. After mixing, the mixture is kept at 4 ° C for 24 hours in a shaded state so that the particles in the tissue can be eluted. This solution is centrifuged at 5000 rpm at 4 ° C for 10 minutes using a centrifuge, and the fluorescence of the supernatant is measured to confirm the amount of particles remaining in each tissue.
- the tumor, liver, spleen, and kidneys collected after TACE were finely minced, and then 10 ml of 0.25% trypsin per 200 mg of each tissue was placed and incubated at room temperature for 30 minutes. . After 30 minutes, collect the supernatant and compare the amount of particles contained in the extracted cells using flow cytometry.
- TACE Procedure The rabbit blood is collected at 0, 1, 5, 10, 30, and 60 min intervals to separate plasma and the amount of doxorubicin present in the plasma is analyzed by HPLC.
- the concentration of AST and ALT a protein that can detect liver-specific toxicity in blood plasma, was determined by colorimetric assay after collecting 1 ml of rabbit blood on the day of TACE treatment, day 1, day 4, day 7, do.
- the liver cancer tissue portion of the rabbit was stained with a brown portion (A), and the survival rate of the liver cancer cells in the stained liver cancer tissues contained the porous silica particles carrying doxorubicin according to the present invention and lipiodol (B) shows that the survival rate of cancer cells is significantly decreased in the embolization procedure using embolization therapy composition (B), which shows excellent drug delivery through embolization of the composition of the present invention And the effect of treatment is shown through.
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Abstract
Description
| 입자 | 작용기 | Zeta Potential | 적합 생리활성물질 |
| 실시예 1-(1) | Si-OH(미개질) | 음전하(약 -18mV) | |
| 실시예 2-(3)-4) | OPMeO2H | 음전하(약 -30mV) | 양전하성 저분자 화합물 |
| 실시예 2-(1)-3)-① | NH2 | 양전하(약 +15mV) | 음전하성 저분자 화합물 |
| 실시예 2-(1)-3)-② | NH2 | 양전하(약 +20mV) | RNA, DNA |
| 실시예 2-(3)-1) | COOH | 음전하(약 -26mV) | 양전하성 저분자 화합물 |
| 실시예 2-(3)-3) | SO3H | 음전하(약 -27mV) | 양전하성 저분자 화합물 |
| 실시예 2-(3)-5) | CHO | 양전하(약 +8mV) | Molecules that can form schiff base (imine) linkage |
| 실시예 1-(11)-5)-① | C3, PEG | 양전하(약 +3.5mV) | Hydrophobic molecule |
| 실시예 1-(11)-5)② | C8, PEG | 양전하(약 +3.6mV) | Hydrophobic molecule |
| Bioactive substances | Loading capacity (w/w %) |
| Small molecules : irinotecan, sorafenib, regorafenib, tamoxifen, gefitinib, erlotinib, afatinib, bleomycin, dactinomycin, daunorubicin, idarubicin, plicamycin, mitoxantrone, epirubicin, carboplatin, oxaliplatin, 5-fluorouracil, gemcitabine, temozolomide, alkylating agents (cisplatin, chlorambucil, procarbazine, carmustine, etc.), antimetabolites (methotreaxate, cytarabine, gemcitabine, etc), anti-microtublue agents (vinblastine, paclitaxel, etc), topoisomerase inhibitors (etoposide, doxorubicin, etc), cytotoxic agents (bleomycin, mitomycin, etc), metformine, etc | 10-30 |
| Antibodies : specific target antibodies for PD-1, PD-L1, CTLA4, LAG3, OX40, KIR, CD137, CD276, GITR, CD27, 4-1BB, VISTA, TIM-3, CDs (CD3, CD20, CD28, CD130, etc), Immune Checkpoint Inhibitors, VEGFRs, VEGFs, PDGFRs, EGFRs, HER2/neu, estrogen receptors, etc | 10-60 |
| Cytokine, Chemokine, Growth Factor, etc : anti-tumor cytokines, chemokines, growth factors (VEGF, EGF, LTF, HGF, etc), interleukins (IL-2, IL-7, IL-12, IL-23, IL-1α, IL-1Receptor alpha, IL-5, IL-6, IL-7, IL-10, IL-12 p70, IL-18, etc), FGFs, G-CSF, interferons (IFN-alpha 2 beta, IFN-gammar, etc), PDGF-BB, TNF-alpha, OX40L, 4-1BB, etc | 5-50 |
| Peptides, Aptamers: p53, LTF, EGF, VEGF, HGF, growth factors, cytokines, chemokines, vaccines, antibodies, etc | 5-50 |
| Proteins: enzymes (caspases, ribonuclease (Rnase, Ribonuclease A, etc), proteasomes, kinase, phosphatase, alkaline phosphatase, phospholipase, etc), antibodies, toxins (botulinum toxin, etc), TGF-beta superfamily, interleukin superfamily, M-CSF, hemoglobin, beta-galactosidase, KRAS, OX40L, relaxin, blood factors (Factor VII, Factor VIII, and Factor Ⅸ, albumin, etc), cytokine, growth factors, hormone, interferons (IFN-alpha, IFN-beta, IFN-gamma, etc), lectin, glycosylated proteins, glycoproteins, SUMOylated proteins, phosphorylated proteins, transcription factors, reprogramming factors, erythropoietin, TNFs, cas9, CRISPR, etc | 5-50 |
| siRNA : siRNA specific for mammalian expressing genes (VEGF, CTGF, TSLP, beta-catenin, HIFs, STATs, Notch, etc), etc | 10-30 |
| mRNA: interleukins (IL-2, IL-7, IL-12, IL-23, IL-1α, IL-1Receptor alpha, IL-5, IL-6, IL-7, IL-10, IL-12 p70, IL-18, etc), FGFs, G-CSF, interferons (IFN-alpha 2 beta, IFN-gammar, etc), PDGF-BB, TNF-alpha, VEGF, EGF, LTF, OX40L, 4-1BB, etc | 5-30 |
| DNA (circular plasmid DNA and/or loop-shape contained DNA, etc): interleukins (IL-2, IL-7, IL-12, IL-23, IL-1α, IL-1Receptor alpha, IL-5, IL-6, IL-7, IL-10, IL-12 p70, IL-18, etc), FGFs, G-CSF, interferons (IFN-alpha 2 beta, IFN-gammar, etc), PDGF-BB, TNF-alpha, VEGF, EGF, LTF, OX40L, 4-1BB, etc | 5-30 |
| Linear DNA (single strand DNA, double strand DNA, etc): interleukins (IL-2, IL-7, IL-12, IL-23, IL-1α, IL-1Receptor alpha, IL-5, IL-6, IL-7, IL-10, IL-12 p70, IL-18, etc), FGFs, G-CSF, interferons (IFN-alpha 2 beta, IFN-gammar, etc), PDGF-BB, TNF-alpha, VEGF, EGF, LTF, OX40L, 4-1BB, DNAzyme, etc | 5-30 |
| Vaccines: anti-virus vaccines, anti-tumor vaccines, anti-bacteria vaccines, etc | 5-30 |
| Gene editing elements: CRISPRs, Cas9, zinc finger nucleases, TALEN, Hybrid Meganulcease, etc | 5-40 |
| Polymer: natural polymer, synthetic polymer, organic polymer, inorganic polymer, chitosan, alginate, dextran, pectin, hybrid polymer, collagen, hyaluronic acid, PLLA, PLGA, PMMA, hydrogel, etc | 5-50 |
| cTACE | DEB-TACE | DegradaBALL-TACE | ||
| Composition | Lipiodol | PVA microbead | Lipiodol+DegradaBALL | |
| Doxorubicin loading conc. | 1mg | 1mg | 1mg | |
| Liver/Biliary injury | Liver infarct | None | Observed | None |
| Multiple portal vein narrowing | None | Observed | None | |
| Multiple portal vein thromboses | None | observed | None | |
Claims (15)
- 표면 또는 기공 내부에 생리활성물질을 담지하고, 제타 포텐셜 +3 mV 이상 또는 -18 mV 이하인 다공성 실리카 입자를 포함하고,상기 입자는 표면 또는 기공 내부가 화학적 개질된 것인 혈관 내 생리활성물질 전달용 조성물.
- 청구항 1에 있어서,상기 입자는 상기 표면 또는 기공 내부의 실라놀기의 적어도 일부가 알데하이드기, 케토기, 카바메이트기, 설페이트기, 설포네이트기, 아미노기, 아민기, 아미노알킬기, 실릴기, 카르복실기, 술폰산기, 티올기, 암모늄기, 설프히드릴기, 포스페이트기, 에스터기, 이미드기, 싸이오이미드기, 케토기, 에터기, 인덴기, 설포닐기, 메틸포스포네이트기, 폴리에틸렌글리콜기, 치환 또는 비치환된 C1 내지 C30의 알킬기, 치환 또는 비치환된 C3 내지 C30의 사이클로알킬기, 치환 또는 비치환된 C6 내지 C30의 아릴기 및 C1 내지 C30의 에스테르기로 이루어진 군에서 선택된 적어도 하나의 작용기로 치환된 것인 조성물.
- 청구항 1에 있어서,상기 입자는 상기 표면 또는 기공 내부의 실라놀기의 적어도 일부가 아미노기, 아민기, PEG기, 프로필기, 옥틸기, 카르복실기, 티올기, 술폰산기, 메틸포스포네이트기 및 알데하이드기로 이루어진 군에서 선택된 적어도 하나의 작용기로 치환된 것인 조성물.
- 청구항 1에 있어서,상기 입자는 직경이 100 내지 1000nm인 것인 조성물.
- 청구항 1에 있어서,상기 입자는 제타 포텐셜 +3 mV 내지 +100 mV 또는 -100 mV 내지 -18 mV 인 것인 조성물.
- 청구항 1에 있어서,상기 입자는 g당 부피가 0.7 내지 2.2 ml인 것인 조성물.
- 청구항 1에 있어서,상기 입자는 하기 수학식 1의 흡광도의 비가 1/2이 되는 t가 20 이상인 조성물:[수학식 1]At/A0(식 중, A0는 상기 다공성 실리카 입자 1 mg/ml 현탁액 5 ml를 직경 50 kDa의 기공을 갖는 원통형 투과막에 넣고 측정된 다공성 실리카 입자의 흡광도이고,상기 투과막 외부에는 상기 투과막과 접하며, 상기 현탁액과 동일한 용매 15 ml가 위치하고, 상기 투과막 내외부는 37℃에서 60 rpm 수평 교반되며,At는 상기 A0의 측정시로부터 t 시간 경과 후에 측정된 다공성 실리카 입자의 흡광도임).
- 청구항 1에 있어서,상기 입자는 담지한 생리활성물질의 최대 방출량이 99중량% 이상인 것인 조성물.
- 청구항 1에 있어서,상기 생리활성물질은 핵산, 뉴클레오티드, 단백질, 펩타이드, 아미노산, 당, 지질, 화합물, 항체, 항원, 사이토카인, 성장인자 및 이들을 구성하는 요소로 이루어진 군에서 선택된 적어도 하나인 것인 조성물.
- 청구항 1에 있어서,상기 생리활성물질은 독소루비신, 이리노테칸, 소라페닙, 아드리아마이신, 다우노마이신, 마이토마이신, 시스플라틴, 에피루비신, 메토트렉세이트, 5-플루오로우라실, 아클라시노마이신, 나이트로젠 머스터드, 사이클로포스파미드, 블레오마이신, 다우노루비신, 빈크리스틴, 빈블라스틴, 빈데신, 타목시펜, 발루비신, 피라루비신, 미토산트론, 젬시타빈, 이다루비신, 테모졸로마이드, 파클리탁셀, 덱사메타손, 알데스루킨, 아벨루맙, 베바시주맙, 카보플라틴, 레고라페닙, 도세탁셀, 독실, 제피티닙, 이마티닙 메실레이트, 허셉틴, 이마티닙, 알데스루킨, 키트루다, 옵디보, 마이토마이신 C, 니볼루맙, 올라파립, 펨브로리주맙, 리투시맙, 수니티닙, 아테졸리주맙, 라파티닙 및 이필리무맙으로 이루어진 군에서 선택된 적어도 하나인 조성물.
- 청구항 1에 있어서,상기 조성물은 카테터를 통해 표적 조직으로 방출되는 것인 조성물.
- 청구항 1 내지 11 중 어느 하나의 조성물을 포함하는 색전 시술용 조성물.
- 청구항 12에 있어서,상기 조성물은 조영제 및 색전물질 중 적어도 하나를 더 포함하는 조성물.
- 청구항 12에 있어서,상기 조성물은 리피오돌, 덱스트란, 폴리비닐알코올, 리피오돌, N-부틸 시아노아크릴레이트, 젤폼, 젤라틴, 에탄올, 덱스트란, 실리카, 폴리소디움 아크릴레이트 비닐알코올 코폴리머, 글라스 입자, 폴리-L-굴루로닉 알지네이트, 폴리글리콜릭-폴리액틱산, 폴리디옥사논, 폴리글리콜산-co-카프로락톤, 폴리프로필렌 및 직경 10㎛ 이상의 다공성 실리카 입자로 이루어진 군에서 선택된 적어도 하나의 색전물질을 더 포함하는 조성물.
- 청구항 12에 있어서,상기 조성물은 카테터를 통해 종양에 직접 연결된 혈관에 방출되는 조성물.
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| CN201880061973.2A CN111132666B (zh) | 2017-07-25 | 2018-07-25 | 用于将生理活性成分递送至血管的组合物 |
| CN202211269946.9A CN116059171B (zh) | 2017-07-25 | 2018-07-25 | 用于将生理活性成分递送至血管的组合物 |
| AU2018308332A AU2018308332B2 (en) | 2017-07-25 | 2018-07-25 | Composition for delivering physiologically active ingredients into blood vessel |
| US16/633,849 US20200163885A1 (en) | 2017-07-25 | 2018-07-25 | Composition for delivering physiologically active ingredients into blood vessel |
| EP18838827.6A EP3659585B1 (en) | 2017-07-25 | 2018-07-25 | Composition for delivering physiologically active ingredients into blood vessel |
| JP2020503889A JP6865491B2 (ja) | 2017-07-25 | 2018-07-25 | 血管内生理活性物質送達用組成物 |
| AU2021229131A AU2021229131B2 (en) | 2017-07-25 | 2021-09-06 | Composition for delivering physiologically active ingredients into blood vessel |
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| KR1020180086870A KR102133829B1 (ko) | 2017-07-25 | 2018-07-25 | 혈관 내 생리활성물질 전달용 조성물 |
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| CN110064348A (zh) * | 2019-04-19 | 2019-07-30 | 滕兆刚 | 一种介孔氧化硅包裹四氧化三铁磁性栓塞微球及其制备方法和应用 |
| CN112402382A (zh) * | 2020-11-04 | 2021-02-26 | 南方医科大学珠江医院 | 双配体靶向协同调控肾素血管紧张素系统的共组装纳米药物的制备方法与用途 |
| WO2024255777A1 (zh) * | 2023-06-14 | 2024-12-19 | 厦门君德医药科技有限公司 | 一种接枝改性的介孔二氧化硅及其制备方法和应用 |
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| KR102316722B1 (ko) | 2018-08-06 | 2021-10-26 | 주식회사 레모넥스 | 면역반응 물질 전달체 |
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| US8173176B2 (en) * | 2004-03-30 | 2012-05-08 | Boston Scientific Scimed, Inc. | Embolization |
| US8012508B2 (en) * | 2008-01-15 | 2011-09-06 | Abbott Cardiovascular Systems Inc. | Method of targeting sustained release formulations of therapeutic agents to treat lung diseases |
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| "U.S.P., Remington", MACK PUBLISHING COMPANY, article "pharmaceutical Science" |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110064348A (zh) * | 2019-04-19 | 2019-07-30 | 滕兆刚 | 一种介孔氧化硅包裹四氧化三铁磁性栓塞微球及其制备方法和应用 |
| CN110064348B (zh) * | 2019-04-19 | 2021-07-02 | 滕兆刚 | 一种介孔氧化硅包裹四氧化三铁磁性栓塞微球及其制备方法和应用 |
| CN112402382A (zh) * | 2020-11-04 | 2021-02-26 | 南方医科大学珠江医院 | 双配体靶向协同调控肾素血管紧张素系统的共组装纳米药物的制备方法与用途 |
| CN112402382B (zh) * | 2020-11-04 | 2023-05-02 | 南方医科大学珠江医院 | 双配体靶向协同调控肾素血管紧张素系统的共组装纳米药物的制备方法与用途 |
| WO2024255777A1 (zh) * | 2023-06-14 | 2024-12-19 | 厦门君德医药科技有限公司 | 一种接枝改性的介孔二氧化硅及其制备方法和应用 |
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| WO2019022521A3 (ko) | 2019-07-04 |
| WO2019022521A9 (ko) | 2019-08-15 |
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