WO2019146612A1 - 皮膚疾患治療用組成物 - Google Patents
皮膚疾患治療用組成物 Download PDFInfo
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- WO2019146612A1 WO2019146612A1 PCT/JP2019/001969 JP2019001969W WO2019146612A1 WO 2019146612 A1 WO2019146612 A1 WO 2019146612A1 JP 2019001969 W JP2019001969 W JP 2019001969W WO 2019146612 A1 WO2019146612 A1 WO 2019146612A1
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- A61K9/0014—Skin, i.e. galenical aspects of topical compositions
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- A61K31/045—Hydroxy compounds, e.g. alcohols; Salts thereof, e.g. alcoholates
- A61K31/07—Retinol compounds, e.g. vitamin A
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- A61K31/19—Carboxylic acids, e.g. valproic acid
- A61K31/20—Carboxylic acids, e.g. valproic acid having a carboxyl group bound to a chain of seven or more carbon atoms, e.g. stearic, palmitic, arachidic acids
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- A61K31/545—Compounds containing 5-thia-1-azabicyclo [4.2.0] octane ring systems, i.e. compounds containing a ring system of the formula:, e.g. cephalosporins, cefaclor, or cephalexine
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- C07K14/575—Hormones
Definitions
- the present invention relates to a composition for treating skin diseases. More particularly, the present invention relates to a composition for treating skin diseases, comprising fat-derived stem cells conjugated with drug-loaded nanoparticles, or exosomes secreted from fat-derived stem cells.
- Stem cells generally include embryonic stem cells (ES cells), mesenchymal somatic stem cells such as bone marrow-derived stem cells and fat-derived stem cells, as well as artificial pluripotent stem cells (iPS cells) and the like. It is used for research. For example, in autologous cell transplantation using somatic stem cells, basic research and clinical trials for therapeutic application to many diseases such as inflammatory diseases, ischemic diseases, allergic diseases, neurodegenerative diseases, etc. It is also popular in Japan. Above all, research on fat-derived stem cells easy to handle is rapidly developing, and clinical trials of regenerative medicine for various diseases are widely performed. In addition, it is also reported that fat-derived stem cells show an enteritis inhibitory effect not only in regenerative medicine but also in drug-induced enteritis mouse models (see, for example, Non-patent Document 1).
- ES cells embryonic stem cells
- iPS cells artificial pluripotent stem cells
- Patent Document 1 discloses that the proliferation ability of stem cells or a cytokine can be obtained by incorporating nanoparticles containing statins into fat-derived stem cells. Methods of enhancing cellular functions, such as synthetic ability, are disclosed.
- Patent Document 2 discloses a cosmetic or therapeutic agent for skin diseases (a composition for anti-allergy treatment, a composition for hair growth or hair growth, etc.) containing a culture supernatant of equine mesenchymal stem cells (fat-derived stem cells etc.) Is disclosed.
- exosomes are membrane vesicles secreted from cells, and they carry out intercellular communication between cells locally and throughout the body by transporting intracellular proteins and genetic information (mRNA, microRNA, etc.) out of cells.
- mRNA genetic information
- exosomes function is diverse and, for example, it has been reported to have functions such as mediating adaptive immune response against infectious pathogens and tumors, tissue repair, neurotransmission and transport of pathogenic proteins. It has also been suggested that the function of exosomes differs depending on the cell from which it is derived.
- mesenchymal stem cell-derived exosomes such as fat-derived stem cells are reported to have a function to reduce myocardial ischemia / reperfusion injury and a function to reduce pulmonary hypertension under hypoxia, and myocardial precursor cell-derived exosome Therefore, it has been reported that it has the function of suppressing myocardial apoptosis (see Non-Patent Documents 2 to 5 and the like). For this reason, it is believed that the use of exosomes secreted from various cells can lead to various physiological functions and lead to the treatment of various diseases.
- Patent No. 6110578 (WO2016 / 076227)
- Patent No. 6152205 (Unexamined-Japanese-Patent No. 2018-24595)
- An object of the present invention is to provide a composition for treating a skin disease which exerts an excellent therapeutic effect.
- the present inventor has incorporated drug-encapsulated nanoparticles in which a drug is encapsulated in nanoparticles into stem cells, and the exosome secreted from the stem cells contains various types of exosomes.
- Component that is useful for treatment of skin diseases of the skin that is, it is richly contained in various substances produced in cells of stem cells such as drugs encapsulated in nanoparticles and angiogenic factors, such exosomes
- the composition for medical treatment of a skin disease which can be used as an external preparation which had the outstanding outstanding therapeutic effect with respect to a skin disease could be prepared, and this invention was completed.
- a composition for treating skin diseases which comprises exosomes secreted from stem cells
- the composition for treating a skin disease wherein the stem cell is a stem cell containing a drug-encapsulated nanoparticle in which a drug is encapsulated in a nanoparticle containing a bioabsorbable polymer.
- the stem cell is a stem cell containing a drug-encapsulated nanoparticle in which a drug is encapsulated in a nanoparticle containing a bioabsorbable polymer.
- the stem cells are fat-derived stem cells.
- the drug is a drug that is effective for the treatment of a skin disease and enhances the expression amount of a factor that is effective for the treatment of a skin disease produced by stem cells.
- the drug is vitamin C or a derivative thereof.
- the properties of the “secreted exosome” from the “stem cell containing the drug-encapsulated nanoparticle”, in particular, the composition (amount of the component and each component) of the inclusion of the exosome, will be described later in this specification, For example, the type of drug encapsulated in nanoparticles, the amount of drug-loaded nanoparticles in stem cells (concentration of drug-loaded nanoparticles in stem cell culture medium), and the like, until stem cells contain drug-loaded nanoparticles and then exosomes are recovered (The passage number), etc., and can not be determined in a general way.
- an exosome and a drug encapsulated in the drug-loaded nanoparticle in an amount effective for treatment of a skin disease are secreted And factors (proteins, nucleic acids, etc.) expressed by the stem cells contained therein.
- factors proteins, nucleic acids, etc.
- the amount of factor (protein, nucleic acid, etc.) in exosomes secreted from stem cells containing drug-encapsulated nanoparticles is the factor in exosomes secreted from stem cells (controls) not containing drug-loaded nanoparticles.
- the amount of exosomes secreted from stem cells containing drug-loaded nanoparticles when producing the composition for treating skin diseases of the present invention is preferably secreted from stem cells not containing drug-loaded nanoparticles. It may be less to achieve an equivalent therapeutic effect than the amount of exosome used.
- Another aspect of the present invention relates to “administer (contact, apply, etc. an effective amount of exosome secreted from stem cells containing drug-encapsulated nanoparticles in which the drug is encapsulated in nanoparticles comprising a bioabsorbable polymer)
- Those skilled in the art can convert the invention relating to the “method for treating a skin disease” from the invention relating to the “composition for treating a skin disease” described in the above item 1 and the like.
- the matters relating to the “composition for treating skin diseases” described in detail in the present specification can be similarly applied to the above-mentioned “method for treating skin diseases”.
- the present invention further comprises, in a further aspect, a step of causing a stem cell to contain a drug-encapsulated nanoparticle in which a drug is encapsulated in a nanoparticle comprising a bioabsorbable polymer, and recovering exosome secreted from the stem cell.
- a method for producing a composition for treating skin diseases is provided.
- the invention relating to the “method for producing a composition for treating a skin disease” is based on the invention relating to the “composition for treating a skin disease” described in the item 1 and the like and “skin” described in detail in the present specification. It can be derived by those skilled in the art with reference to the matters relating to the composition for treating a disease.
- the first practitioner performs “the step of causing the stem cells to contain the drug-encapsulated nanoparticle in which the drug is encapsulated in the nanoparticles containing the bioabsorbable polymer”, and the second practitioner who receives the stem cells from the first practitioner
- An embodiment for performing "the step of recovering exosomes secreted from the stem cells” is also an embodiment of the above-mentioned "method for producing a composition for treating a skin disease”.
- composition for treating skin diseases according to the present invention has a remarkably superior therapeutic effect as compared with the conventional one, and is extremely useful for treating various skin diseases such as alopecia or alopecia, skin damage or skin ulcer. is there.
- composition for treating skin diseases according to the present invention utilizes exosome having high transdermal absorbability as an active ingredient, a pharmaceutical which can be used as an external preparation (by transdermal administration), drug outside the drug department It can be in the form of goods or cosmetics.
- Rhodamine red fluorescent dye-containing PLA nanoparticles are added to the culture medium of human adipose-derived stem cells to a final concentration of 20 ⁇ g / mL, 50 ⁇ g / mL, 80 ⁇ g / mL or 100 ⁇ g / mL, one hour later or 2 It is a photograph which shows the result of having observed a stem cell with a confocal laser fluorescence microscope after time.
- Rhodamine red fluorescent dye-loaded PLGA nanoparticles are added in culture medium of mouse adipose-derived stem cells to a final concentration of 20 ⁇ g / mL, 50 ⁇ g / mL, 75 ⁇ g / mL or 100 ⁇ g / mL, and 30 minutes later in stem cells It is a photograph which shows the result of having measured the uptake
- FIG. 6 is a graph showing the results of measurement of the amount of simvastatin released from adipose-derived stem cells into the culture medium after treating simvastatin-encapsulated PLA nanoparticles at a concentration of 100 ⁇ g / mL for human adipose-derived stem cells for 1 hour. It is a graph which shows the result of having measured the quantity of the simvastatin which was released in the culture medium from a fat origin stem cell, after treating a simvastatin inclusion PLA nanoparticle with a concentration of 50 micrograms / mL to a mouse fat origin stem cell for 30 minutes.
- FIG. 16 is a graph showing VEGF (-A) gene expression in adipose-derived stem cells of a 71-year-old female treated with estradiol-loaded PLGA nanoparticles.
- FIG. 6 is a graph showing HGF gene expression in adipose-derived stem cells of a 71-year-old female treated with estradiol-loaded PLGA nanoparticles.
- 16 is a graph showing FGF2 gene expression in adipose-derived stem cells of a 71-year-old female treated with estradiol-loaded PLGA nanoparticles.
- 6 is a graph showing VEGF (-A) gene expression in adipose-derived stem cells of a 71-year-old female treated with vitamin C-encapsulated PLGA nanoparticles.
- FIG. 6 is a graph showing HGF gene expression in adipose-derived stem cells of a 71-year-old female treated with vitamin C-encapsulated PLGA nanoparticles.
- FIG. 16 is a graph showing FGF2 gene expression in adipose-derived stem cells of a 71-year-old female treated with vitamin C-encapsulated PLGA nanoparticles.
- FIG. 16 is a graph showing VEGF (-A) gene expression in adipose-derived stem cells of a 71-year-old female treated with retinoic acid-encapsulated PLGA nanoparticles.
- 6 is a graph showing HGF gene expression in adipose-derived stem cells of a 71-year-old female treated with retinoic acid-encapsulated PLGA nanoparticles.
- FIG. 16 is a graph showing FGF2 gene expression in adipose-derived stem cells of a 71-year-old female treated with retinoic acid-encapsulated PLGA nanoparticles.
- composition for treating skin diseases according to the present invention can be referred to as stem cells (herein referred to as “nanoparticle-containing stem cells”) containing drug-encapsulated nanoparticles in which the drug is encapsulated in nanoparticles containing a bioabsorbable polymer Containing exosomes secreted from
- the “drug” encapsulated in nanoparticles which is contained in stem cells for recovering exosomes, has the effect of exerting an effect on the human body, more specifically, it is encapsulated in exosomes secreted from stem cells It can be selected from various substances which influence the components to be used and exert the effects of the present invention for therapeutic use of skin diseases when the exosomes are used.
- the “components encapsulated in exosomes secreted from stem cells” include “drugs” encapsulated in exosomes, and various factors produced by stem cells (particularly, factors such as angiogenic factors effective for treating skin diseases) ), “Drug” itself can be added to the inclusion component of exosome, and preferably to “improve the inclusion component of exosome” in the sense that it can further enhance the expression level of factors produced by stem cells. It is what you do.
- Such “drug” may be selected, for example, from compounds belonging to peptides (including peptide hormones etc.) or derivatives thereof, proteins, nucleic acids, polysaccharides, vaccines, adjuvants, water-soluble or lipid-soluble low molecular weight compounds
- the drug (small molecule compound) to be encapsulated in nanoparticles is a "statin".
- the term "statin” in the present invention is a term encompassing all compounds that are HMG-CoA (3-hydroxy-3-methylglutaryl-coenzyme A) reductase inhibitors.
- the statins that can be used in the present invention include, for example, simvastatin, rosuvastatin, pitavastatin, atorvastatin, cerivastatin, fluvastatin, pravastatin, lovastatin and mevastatin.
- statins have been reported in many cases to act on vascular endothelial cells and vascular endothelial precursor cells derived from bone marrow, and to bring out their cell-mediated pro-angiogenic effects.
- the drug (peptide hormone) to be encapsulated in the nanoparticles is "estrogen".
- esterogen in the present invention is a term generally including all female hormones having a steroid skeleton, sometimes referred to as follicular hormones and the like, metabolites thereof, and chemical derivatives thereof (homoestrone, dowadinol etc.) .
- Estrogen that can be used in the present invention includes, for example, 17 ⁇ -estradiol, estrone, estriol, 17 ⁇ -ethynyl estradiol, equilin, equilenin, and metabolites thereof.
- the drug (small molecule compound) to be encapsulated in nanoparticles is "Vitamin A or a derivative thereof", preferably “retinoic acid".
- Retinoic acid is a derivative of vitamin A (retinol), and its physiological activity is similar to that of vitamin A, but the strength of its physiological activity is significantly higher than that of vitamin A.
- retinoic acid can be used for the treatment (whitening, skin regeneration, etc.) of stains, acne, wrinkles, keloids and the like.
- the whitening effect by retinoic acid is brought about not by suppression of melanin pigment but by promotion of skin turnover.
- the drug (small molecule compound) to be encapsulated in nanoparticles is "Vitamin C (ascorbic acid) or a derivative thereof".
- Vitamin C is an essential vitamin for the synthesis of collagen that constitutes connective tissues such as skin, tendon and cartilage, and also inhibits the activity of tyrosinase which is a melanin pigment synthetase, that is, suppresses (or produces) synthesis of melanin pigment It also has effects such as dilution of melanin pigment, removal of active oxygen, promotion of blood circulation, and suppression of excessive sebum secretion.
- vitamin C can be used to treat skin diseases such as maintaining skin health and healing wounds as well as whitening (prevention of stains and the like).
- Derivatives of vitamin C include derivatives for improving water solubility or lipid solubility of vitamin C, which can be selected in consideration of the effects of the invention, such as ascorbyl palmitate, ascorbyl tetrahexyl decanoate, etc.
- Fat-soluble vitamin C can be used.
- the drug to be encapsulated in the nanoparticles is a component used as a whitening agent like vitamin C, for example, hydroquinone having an action of inhibiting synthesis of melanin pigment, arbutin, kojic acid, tranexamic acid, resorcinol, linoleic acid, ellagic acid, Azelaic acid, fullerene and the like; chemical peeling agent having a turnover promoting action (which may contain glycolic acid, salicylic acid, lactic acid, trichloroacetic acid and the like) and the like may be used.
- hydroquinone having an action of inhibiting synthesis of melanin pigment, arbutin, kojic acid, tranexamic acid, resorcinol, linoleic acid, ellagic acid, Azelaic acid, fullerene and the like
- chemical peeling agent having a turnover promoting action which may contain glycolic acid, salicylic acid, lactic acid, trichloro
- the drug to be encapsulated in the nanoparticles may be vitamin B, vitamin E, and other vitamins. These vitamins are effective for peripheral nerve injury and peripheral circulatory disorder via the skin.
- a composition containing vitamin B, vitamin E, placenta and kamomila ET (extract obtained by extracting squamber from chamomile flowers) is also known as a whitening agent.
- the drug-containing nanoparticles to be contained in stem cells for recovering exosomes may be those in which only one type of drug is enclosed, or in which two or more types of drugs are combined and encapsulated.
- the exosome used in the present invention may be an exosome secreted from stem cells containing a single drug-loaded nanoparticle, or may be secreted from stem cells containing drug-loaded nanoparticles each encapsulating a different drug. It may be a mixture of exosomes.
- the combination of drugs is, for example, a combination comprising two or more drugs selected from the group consisting of statins, estrogens, vitamin A and its derivatives, and vitamin C and its derivatives.
- the "bioabsorbable polymer” used as a material of nanoparticles can be selected from various compounds capable of producing drug-encapsulated nanoparticles.
- Representative examples of such bioabsorbable polymers include polylactic acid (PLA) and poly (lactic-co-glycolic acid) (PLGA).
- PLA is innocuous because it is hydrolyzed in the body to be decomposed into lactic acid
- PLGA poly (lactic-co-glycolic acid)
- PLA is innocuous because it is hydrolyzed in the body to be decomposed into lactic acid
- PLGA is hydrolyzed in the body to be separated into lactic acid and glycol and finally to become water and carbon dioxide respectively (biotoxicity is recognized Not preferred as a material.
- the drug-encapsulated nanoparticles generally have a number average particle size of less than 1000 nm, preferably 100 nm to 400 nm, more preferably 200 nm to 400 nm, as measured by light scattering method, from the viewpoint of stem cell uptake efficiency. It is made.
- the drug-encapsulated nanoparticles may be produced by any method as long as the method has a number average particle diameter as described above, but is preferably produced using a spherical crystallization method.
- Spherical crystallization is well known as a method capable of designing spherical crystal particles and directly controlling their physical properties for control by controlling the crystal formation / growth process in the final process of compound synthesis.
- One of the spherical crystallization methods is the well-known emulsion solvent diffusion method (ESD method).
- the emulsion solvent diffusion method is performed using two types of organic solvents, a good solvent capable of dissolving a bioabsorbable polymer such as PLA or PLGA for encapsulating a drug, and a poor solvent not dissolving the polymer.
- a polymer such as PLA or PLGA is dissolved in a good solvent, and the drug solution is added to the good solvent and mixed so that the polymer does not precipitate.
- the good solvent rapidly diffuses into the poor solvent and the poor solvent diffuses into the good solvent, so that the interface between the organic solvent phase and the aqueous phase is disturbed, and the good solvent is dispersed.
- the solvent self-emulsifies to form submicron sized emulsion droplets. Thereafter, the mutual diffusion of the good solvent and the poor solvent proceeds further, and the solubility of the polymer and drug such as PLA or PLGA in the emulsion droplet decreases, and as a result, a polymer nanoparticle of drug-containing spherical crystal particles is formed.
- stem cells refer to cells having self-replication ability and totipotency, pluripotency or multipotency, and include various types of stem cells understood by those skilled in the art.
- stem cells include somatic stem cells such as embryonic stem cells (ES cells), induced pluripotent stem cells (iPS cells) and mesenchymal stem cells.
- ES cells embryonic stem cells
- iPS cells induced pluripotent stem cells
- mesenchymal stem cells mesenchymal stem cells.
- Stem cells can be distinguished from other cells typically by the positive or negative expression of one or more predetermined genes or proteins (so-called marker genes or marker proteins).
- mesenchymal stem cells obtained from bone marrow tissue or adipose tissue etc. particularly mesenchymal stem cells obtained from adipose tissue “fat-derived stem cells It is preferable to use ".”
- Adipose-derived stem cells have already been clinically used to be administered alone, and are known to differentiate into fat, bone, liver, heart and the like. Adipose-derived stem cells can be easily and massively extracted and separated from subcutaneous fat and the like obtained by minimally invasive techniques such as liposuction.
- adipose-derived stem cells can also be extracted and separated from the collected adipose tissue using a fully automated adipose tissue-derived stem cell extraction device such as Celution system (manufactured by Cytoli). It is extremely advantageous to use fat-derived stem cells as stem cells according to the present invention also from the viewpoint of such efficiency (economy).
- the stem cells may be cells contained in the collected tissue (primary culture cells) or cells obtained by subculturing the primary culture cells a predetermined number of times (passage culture cells). May be
- the donor of the stem cells may be human or non-human mammals (such as mice), but the subject using the composition for treating skin diseases according to the present invention It is preferable that it is the same biological species as In particular, when the composition for treating skin diseases according to the present invention is manufactured as a pharmaceutical product, cosmetic or the like for use on a human (patient), the donor is preferably a human.
- the donor may be the same (autologous) or different (others) as the subject using the skin disease treatment composition. Also, the gender and age of the donor are not particularly limited.
- the stem cells containing the drug-loaded nanoparticles can be prepared by a simple process, for example, adding the drug-loaded nanoparticles to a medium in which the stem cells are cultured. Drug-encapsulated nanoparticles in the medium are easily taken into stem cells by phagocytosis without using a special reagent or the like.
- the concentration of drug-loaded nanoparticles in the medium, or the weight of drug-loaded nanoparticles relative to a predetermined number of stem cells depends on the type and condition of stem cells used (such as the number of passages), the properties of drug-loaded nanoparticles (drug type, Depending on the weight of the drug contained in a certain amount of drug-encapsulated nanoparticles, etc.), the composition containing the secreted exosome may be appropriately adjusted so that the desired therapeutic effect on the skin disease is exhibited. Can.
- the concentration of drug-loaded nanoparticles in the medium is, for example, 5 to 500 ⁇ g / mL, preferably 10 to 200 ⁇ g / mL, more preferably 20 to 100 ⁇ g / mL.
- the weight of the drug-loaded nanoparticle in the medium per 50,000 stem cells is, for example, 5 to 1000 ⁇ g, preferably 10 to 500 ⁇ g, more preferably 25 to It is 300 ⁇ g.
- the weight of the drug-loaded nanoparticles can be obtained by multiplying the weight of the drug-loaded nanoparticles by the loading rate of the drug in the drug-loaded nanoparticles (the ratio of the weight of the drug loaded therein to the weight of drug-loaded nanoparticles).
- the numerical range can be converted to the numerical range of the enclosed drug.
- Stem cells containing drug-loaded nanoparticles have enhanced functions such as migration ability, proliferation ability and immunosuppression ability, and factors involved in angiogenesis (for example, FGF (fibroblast growth factor) such as FGF-2
- FGF fibroblast growth factor
- VEGF vascular endothelial growth factor
- VEGF-A vascular endothelial growth factor
- VEGF-C vascular endothelial growth factor
- HGF stem cell growth factor
- the exosome can be recovered from the culture medium using a known method, for example, after culturing stem cells in a medium to which drug-loaded nanoparticles are added for a predetermined period, subcultured a predetermined number of times as necessary, .
- the culture period of the stem cells in the medium to which the drug-loaded nanoparticles are added can be appropriately adjusted, but is usually about 4 to 5 days.
- stem cells are collected from the culture medium in the medium to which the drug-loaded nanoparticles are added (ex.
- skin disease refers to a disease causing an abnormality or damage in the skin, or a symptom or a condition such as an abnormality or damage occurring in the skin, such as a condition related to the abnormality or damage of the skin itself, but also the skin Also includes abnormalities related to hair in Such skin diseases (symptoms, conditions, etc.) include, for example, skin damage due to severe burns, intractable skin ulcers such as wrinkles, radiation ulcers, alopecia such as alopecia areata and hair loss due to side effects of anticancer agents And alopecia etc.
- the thing by aging is also included in the abnormality and damage (a symptom, a state, etc.) of the said skin and hair.
- treatment means completely or partially curing, alleviating or ameliorating, or slowing the progression of skin diseases (the disease itself or symptoms, conditions etc. associated with the disease). Delay or prevent, reduce the risk of development, and other effects, or combinations thereof.
- therapeutic treatment should not be interpreted as synonymous with cure in a narrow sense, etc., but is replaced with the term “treatment”. It can also be done.
- statin itself has an effect of promoting angiogenesis, and acts on stem cells to enhance various functions, and in particular can improve the ability to generate an angiogenic factor. Therefore, exosomes secreted from stem cells containing statin-encapsulated nanoparticles can be rich in factors and substances that promote angiogenesis, including statins themselves. By blending such an effective amount of exosome, it is possible to prepare a composition for treating a skin disease which is excellent in an effect on alopecia, alopecia and other diseases in which angiogenesis is therapeutically effective.
- exosomes secreted from stem cells containing estrogen-encapsulated nanoparticles can be abundantly contained with factors and substances that can promote angiogenesis and regeneration of the dermis, including estrogen itself.
- a composition for treating a skin disease which is highly effective against skin damage, skin ulcers, and other diseases in which angiogenesis and regeneration of the dermis are therapeutically effective.
- factors rich in angiogenesis and / or dermal regeneration, etc. are abundantly contained, and by using the exosome, excellent effect on diseases similar to the above-mentioned statin and / or estrogen Compositions for treating skin disorders can be prepared.
- the drug encapsulated in drug-loaded nanoparticles comprises statins, vitamin A and its derivatives, and vitamin C and its derivatives And at least one drug selected from the group consisting of
- the drug encapsulated in the drug-loaded nanoparticle is at least selected from the group consisting of estrogen and vitamin A and its derivatives Contains one drug.
- the composition for treating skin diseases according to the present invention has various skin types according to the classification of drugs, cosmetics or quasi-drugs (medicinal cosmetics), which are intermediate between them, according to the legal system of each country.
- the composition can be manufactured as various compositions, for which a disease is to be treated.
- the (medicinal) cosmetic composition for treating a skin disease may be a product intended for so-called anti-aging, such as preventing skin aging due to aging.
- the dosage form or administration route of the composition for treating a skin disease according to the present invention can be selected appropriately, it is an external preparation directly applied to the skin of the affected area, in other words, a dosage form used for transdermal administration.
- a dosage form used for transdermal administration is preferred.
- various components encapsulated in exosomes can be made to locally act around the affected area, that is, therapeutic effect at relatively low concentration
- it is also possible to produce the composition for treating skin diseases according to the present invention for example, as an injection (for intravenous administration).
- the “pharmaceutical composition” (a pharmaceutical composition) for treatment of a skin disease described in the priority document of the present application is, as described above, a drug (a drug) or a quasi drug (a quasi-drug).
- a cosmetic which is a concept corresponding to the “composition” for treatment of a skin disease of the present invention.
- a liquid, a spray, an ointment, a cream, a gel, a patch etc. are mentioned, for example.
- the external preparation for skin is (medicinal) cosmetics, for example, basic cosmetics such as lotion, cream, milk, cosmetic liquid, face wash, etc .; makeup cosmetics such as makeup base; shampoos, conditioners, hairdressing agents etc.
- Other cosmetics such as hair care products, skin lightening agents and depilatory agents may be mentioned.
- the composition for treating skin diseases according to the present invention is secreted from stem cells (nanoparticle-containing stem cells) containing drug-encapsulated nanoparticles according to its classification (drug, quasi-drug, cosmetics etc.) and dosage form. It may contain exosomes and other components.
- the content of exosome in the composition for treating a skin disease is expected as a medicine, quasi-drug or cosmetics, taking into consideration the properties of the exosome to be used (in particular, the type and concentration of components contained in the exosome), etc.
- the amount is sufficient to produce the desired effect, and can be appropriately adjusted by those skilled in the art through commonly used tests.
- additives generally used in the manufacture of pharmaceuticals, quasi-drugs, cosmetics, etc. such as stabilizers, preservatives, buffers, pH adjusters, excipients, etc.
- the additive used for manufacture of an external preparation composition for transdermal administration
- the content of components other than such exosomes can also be appropriately adjusted by those skilled in the art.
- a composition for treating a skin disease according to the present invention comprises the steps of including in a stem cell drug-containing nanoparticles in which a drug is encapsulated in nanoparticles containing a bioabsorbable polymer, and recovering exosomes secreted from the stem cells.
- Statin (Simvastatin) Encapsulated Nanoparticle A statin (simvastatin) was used as a drug, and a polylactic acid polymer (PLA) or a polylactic acid / glycolic acid copolymer (PLGA) was used as a material of the nanoparticles. , Statin-encapsulated nanoparticles were produced by the following procedure.
- PLA weight average molecular weight 10000
- simvastatin 10 mg
- the obtained polymer solution was dropped into 25 mL of a 2 wt% PVA solution stirred at 500 rpm at room temperature to obtain a simvastatin-encapsulated PLA nanoparticle suspension.
- the organic solvent acetone, ethanol
- the suspension was centrifuged at 60000 g for 30 minutes at 4 ° C., and the precipitate was collected and resuspended in distilled water. This centrifugation and resuspension in distilled water were performed a total of three times. Thereafter, the suspension was lyophilized overnight to obtain simvastatin-loaded PLA nanoparticles. Simvastatin was encapsulated at 24.94 ⁇ g in 1 mg of PLA nanoparticles.
- simvastatin-encapsulated PLGA nanoparticles were also produced using the same amount of PLGA (weight-average molecular weight 6500) instead of PLA as the material of the nanoparticles, and using the same preparation method as the above-described simvastatin-encapsulated PLA nanoparticles.
- Preparation Example 2 Preparation of Estrogen (Estradiol: E2) Encapsulated Nanoparticle According to the same preparation method as the simvastatin-encapsulated PLGA nanoparticle of Preparation Example 1, except that 10 mg of estradiol (E2) is used instead of 10 mg of simvastatin as a drug. Estradiol-loaded PLGA nanoparticles were prepared.
- Preparation Example 3 Preparation of Vitamin C-Encapsulated Nanoparticle A vitamin is prepared by the same preparation method as the simvastatin-encapsulated PLGA nanoparticle of Preparation Example 1 except for using 10 mg of vitamin C (ascorbyl palmitate) instead of 10 mg of simvastatin as a drug. C-encapsulated PLGA nanoparticles were prepared.
- Preparation Example 4 Preparation of Retinoic Acid-Encapsulated Nanoparticles Retinoic acid-encapsulated PLGA nanoparticles using the same preparation method as the simvastatin-encapsulated PLGA nanoparticles of Preparation Example 1 except that 10 mg of retinoic acid is used instead of 10 mg of simvastatin as a drug. Was produced.
- Preparation Example 5 Preparation of Rhodamine Encapsulated Nanoparticles Similar to Simvastatin Encapsulated PLA Nanoparticles and Simvastatin Encapsulated PLGA Nanoparticles of Preparation Example 1 except that 10 mg of rhodamine (red fluorescent dye) is used instead of 10 mg of simvastatin as a simulated drug.
- Rhodamine-encapsulated PLA nanoparticles and rhodamine-encapsulated PLGA nanoparticles were produced according to the production method.
- Reference Example 1 Treatment of Fat-Derived Stem Cells Using Rhodamine-Encapsulated PLA Nanoparticles
- statin statin
- drugs derived from fat-derived stem cells were used.
- the following tests were performed using the rhodamine-encapsulated nanoparticles obtained according to Preparation Example 5 in which Rhodamine was encapsulated as a simulated drug in order to investigate the optimum treatment concentration when treating the statin) -encapsulated nanoparticles.
- fat-derived stem cells (Adipose derived from human adipose tissue and mouse adipose tissue respectively) using known methods using collagenase treatment and centrifugal specific gravity method, specifically by the following procedure Stem Cell (AdSC) was obtained.
- AdSC Stem Cell
- the mixture was centrifuged (with a brake) at 1200 rpm (300 g) ⁇ 5 min, and the supernatant was discarded.
- the cells were suspended in 2 ml of 1 mM EDTA / PBS and collected in a single tube, and 8 ml of a hemolyzed solution was added and mixed, followed by storing for 10 minutes in a cold (OnIce) (hemolytic operation). After adding 1 mM EDTA / PBS to around 45 mL, it was centrifuged at 1200 rpm (300 g) ⁇ 5 min and the supernatant was discarded.
- the cell pellet was suspended in PBS (-) or 10% DMEM F12, cultured with 10% DMEM F12 in a 5% CO 2 incubator for 3 to 4 days, and adherent cells were used in experiments as fat-derived stem cells (AdSC) (P0) .
- AdSC fat-derived stem cells
- the cells were subcultured at a ratio of 1: 3 to 4 (density of 3000-4000 / cm 2 ) for another three to four days.
- mice were decapitated from the epigastrium using a syringe with a 26 to 29 G needle (such as an insulin syringe).
- Subcutaneous fat (inguinal region-back) was collected and placed in a 3.5-cm culture dish (one drop of physiological saline in the center to make it easy to remove adipose tissue).
- the adipose tissue was cut into small pieces (about 20 to 30 times) with scissors while placed on the lid, and then the adipose tissue was placed in a 15 mL tube with a collagenase solution of the same volume as the fat. The cap was closed, and after inverting the tube, it was incubated at 37 ° C.
- the enzyme reaction was stopped by adding an equal amount of 10% FBS / DMEM F12 medium. After the top fat layer was aspirated off, the supernatant was passed through a cell strainer (40 ⁇ m, BD, 352340) and collected in a new 50 mL tube. The mixture was centrifuged (with a brake) at 1200 rpm (250 g) ⁇ 5 min, and the supernatant was discarded. The cell pellet was suspended by adding 1 mM EDTA / PBS (-) to the tube to 10 ml. The mixture was centrifuged (with a brake) at 1200 rpm (250 g) ⁇ 5 min, and the supernatant was discarded.
- the cell pellet was suspended in 10% FBS / DMEM F12 medium and then seeded on culture dishes (P0).
- the cells were cultured for 3 to 4 days in a 5% CO 2 incubator, and adherent cells were passaged (P1) 1: 1 as AdSC.
- the cells were cultured in a 5% CO 2 incubator for 4 to 5 days, and adherent cells were passaged 1: 3 as an AdSC (P2). It was used for the experiment when the cell density increased to about 80 to 90%.
- the rhodamine-encapsulated PLA nanoparticles obtained by Preparation Example 5 are adjusted to a final concentration of 20 ⁇ g / mL, 50 ⁇ g / mL, 80 ⁇ g / mL or 100 ⁇ g / mL Added to One hour (1 h) or 2 hours (2 h) after the addition, the uptake of the rhodamine-loaded PLA nanoparticles was observed using a confocal laser fluorescence microscope. Staining of nuclei was performed in a usual manner using DAPI. The results are shown in FIG.
- the rhodamine-encapsulated PLGA nanoparticles obtained in Preparation Example 5 were added to the culture medium of mouse fat-derived stem cells obtained by the above method at a final concentration of 20 ⁇ g / mL, 50 ⁇ g / mL, 75 ⁇ g / mL or 100 ⁇ g / mL. It added so that it might become.
- flow cytometry analysis was performed using a FACS device (BD FACSAria, BD Biosceinces) and analysis software attached to the device. The results are shown in FIG.
- the rhodamine-loaded PLA nanoparticles were taken up by human fat-derived stem cells at any concentration.
- the uptake amount of rhodamine-encapsulated PLA nanoparticles of human adipose-derived stem cells is increased depending on the treatment concentration, and in particular, a large amount of rhodamine-encapsulated PLA nanoparticles is incorporated into human adipose-derived stem cells at a concentration of 100 ⁇ g / mL Was confirmed.
- the uptake amount of rhodamine-encapsulated PLA nanoparticles of human fat-derived stem cells is greater when the treatment time is 2 hours than when the treatment time is 1 hour.
- simvastatin-encapsulated PLA nanoparticles were added to the culture medium of human adipose-derived stem cells at a concentration of 100 ⁇ g / mL, and the cells were cultured for 1 hour.
- simvastatin-loaded PLGA nanoparticles are added to the culture medium of mouse fat-derived stem cells at a concentration of 50 ⁇ g / mL and cultured for 30 minutes, and mouse fat containing simvastatin-loaded PLGA nanoparticles is the same method as described above The amount of simvastatin released from culture-derived stem cells into the culture medium was measured. The results are shown in FIG.
- simvastatin entrapped in simvastatin-encapsulated PLGA nanoparticles incorporated into human fat-derived stem cells is slowly released slowly and almost all of it is released.
- simvastatin encapsulated in simvastatin-encapsulated PLA nanoparticles incorporated into mouse fat-derived stem cells is also slowly released slowly and almost all of it is released.
- simvastatin-loaded PLA nanoparticles were added to a culture medium for culturing adipose-derived stem cells to a concentration of 20 ⁇ g / mL, 50 ⁇ g / mL or 100 ⁇ g / mL. After 24 hours, cells treated at each concentration were recovered, and the total RNA contained in these cells was extracted using the NucleoSpin RNA kit (Takara Bio).
- cDNA is synthesized from the extracted RNA using the ReverTra Ace qPCR RT kit (TOYOBO), using primers corresponding to the DNA sequences of each angiogenic factor (VEGF-A, VEGF-C and FGF-2)
- VEGF-A, VEGF-C and FGF-2 The mRNA expression levels of VEGF-A, VEGF-C and FGF-2 in each cell population were measured by quantitative PCR.
- SsoFastEvaGreen Mastermix reagent Bio-Rad
- forward and reverse primers corresponding to each angiogenic factor are added to a cDNA solution, and a PCR reaction (95 ° C. for 30 seconds) is performed using a thermal cycler (CFXConnect Bio-Rad).
- Forward primer for VEGF-A 5'- TTACTCTCACCTGCTTCT-3 '(SEQ ID NO: 1) Reverse primer for VEGF-A: 5'- CTGCTTCTTCCACAAATG-3 '(SEQ ID NO: 2) Forward primer for VEGF-C: 5 '-TCAAGGACAGAAGAGACTA -3' (sequence number 3) Reverse primer for VEGF-C: 5'- CCACATCTATACACACCTC-3 '(SEQ ID NO: 4) Forward primer for FGF-2: 5'- TTCTTCCAAATGTCTGCTAA-3 '(SEQ ID NO: 5) Reverse primer for FGF-2: 5'- RGACCAATTATCCAAACTGAG-3 '(SEQ ID NO: 6)
- the mRNA expression level of VEGF-A was treated with simvastatin-loaded nanoparticles at any concentration of 20 ⁇ g / mL (Statin 20), 50 ⁇ g / mL (Statin 50) and 100 ⁇ g / mL (Statin 100) Also in the case where the treatment was performed, it was increased compared to the untreated control group (Control), and a remarkable increase was observed particularly when simvastatin-loaded nanoparticles were treated at a concentration of 100 ⁇ g / mL.
- the mRNA expression level of VEGF-C can be any concentration of 20 ⁇ g / mL (Statin 20), 50 ⁇ g / mL (Statin 50) and 100 ⁇ g / mL (Statin 100) of simvastatin-loaded nanoparticles. Treatment also increased compared to the untreated control group (Control), and in particular, a significant increase was observed when simvastatin-loaded nanoparticles were treated at a concentration of 50 ⁇ g / mL or 100 ⁇ g / mL. .
- the amount of mRNA expression of FGF-2 is also similar to that of simvastatin-loaded nanoparticles: 20 ⁇ g / mL (Statin 20), 50 ⁇ g / mL (Statin 50) and 100 ⁇ g / mL (Statin 100).
- Treatment with concentrations also increased compared to the untreated control group (Control), and in particular, a significant increase was observed when simvastatin-loaded nanoparticles were treated with concentrations of 50 ⁇ g / mL or 100 ⁇ g / mL.
- simvastatin-encapsulated PLA nanoparticles enhance the angiogenic factor-producing ability of adipose-derived stem cells.
- statin-encapsulated nanoparticles can enhance the ability of adipose-derived stem cells to produce an angiogenic factor, and statins incorporated into adipose-derived stem cells (which were encapsulated in statin-encapsulated nanoparticles) are aged over time It was confirmed that they were released from the cells. From the results of this reference example 2, fat-derived stem cells containing statin-encapsulated nanoparticles produce a composition for treating skin disorders, which contains a large amount of components effective for treating skin disorders together with the drug encapsulated in nanoparticles. It shows that it can be used to
- Example 1 Composition for Treating Skin Diseases (Alopecia etc.) Containing Exosome Secreted from Adipose-Derived Stem Cells Containing Statin (Simvastatin) Encapsulated Nanoparticles
- Test Composition S1 1 ⁇ 10 6 human fat-derived stem cells (see Reference Example 1) were co-cultured with 2 mg of statin-encapsulated nanoparticles (Simvastatin-loaded PLGA nanoparticles, see Preparation Example 1) in which simvastatin was encapsulated in PLGA nanoparticles for 1 hour. Thereafter, the human adipose-derived cells were cultured for 72 hours, the medium was recovered, and exosomes were separated from the medium by ultracentrifugation (210,000 RCF). The separated exosomes were added to and mixed with a 5% aqueous glycerol solution to produce a test composition S1.
- test composition S1 evaluation of the therapeutic effect of test composition S1 on alopecia etc.
- the ICR mice were anesthetized by intraperitoneal administration of 300 mg / kg of tribromoethanol and fixed in the supine position.
- the test composition S1 was applied once to the back skin of the mouse, and one week later, the condition of the skin was observed.
- ICR mouse coated with 5% glycerol aqueous solution control composition A1 containing no exosome, and 5% glycerol aqueous solution containing exosomes of human fat-derived cells not treated with statin encapsulated nanoparticles (control composition A2)
- control composition A1 5% glycerol aqueous solution
- control composition A2 control composition aqueous solution containing exosomes of human fat-derived cells not treated with statin encapsulated nanoparticles
- test composition S1 and target composition A1 or A2 similar to the above test were applied once to the skin of the back of the HR-1 mouse which was anesthetized and fixed in the supine position in the same manner as the above test. Two weeks later, the condition of the skin was observed and compared. The results are shown in FIG.
- composition for treating skin diseases comprising exosomes secreted from fat-derived stem cells containing statin (simvastatin) -encapsulated nanoparticles or estrogen (estradiol: E2) -encapsulated nanoparticles
- Test Composition E1 Exosomes of human adipose-derived stem cells were obtained in the same manner as in Example 1 except that estradiol-loaded PLGA nanoparticles (see Production Example 2) were used instead of the simvastatin-loaded PLGA nanoparticles (see Production Example 1). The exosome was added to and mixed with a 5% aqueous glycerol solution to produce a test composition E1.
- DDY mice were held in a prone position under anesthesia, and after dissecting the left and right abdominal walls of the back, both ovaries were removed, and they were reared normally for 2 months to prepare ovariectomized DDY mice. Ovariectomized DDY mice are characterized by reduced ability to regenerate skin tissue.
- test composition S1 similar to Example 1 or the test composition E1 freshly prepared as described above in Example 2 was applied to the skin of ovariectomized DDY mice at a frequency of 3 times / week. Two weeks after the start of application, a part of the skin of the mouse was collected and fixed with a 4% paraformaldehyde solution for 6 hours, and then a sliced tissue sample was prepared by a conventional method and observed with a light microscope. Skin tissues in thin sectioned tissue specimens are stained with collagen-producing fibroblasts by Masson's trichrome staining.
- Example 1 an ovariectomized DDY mouse coated with a 5% aqueous glycerol solution (control composition A1) containing no exosome, and a human fat not treated with statin-encapsulated nanoparticles or estradiol-encapsulated PLGA nanoparticles.
- control composition A1 a 5% aqueous glycerol solution
- control composition A2 a 5% aqueous glycerol solution
- the skin tissue becomes thicker compared to the control, and in particular, many fibroblasts (black parts in the figure) producing collagen are observed.
- the exosomes secreted from stem cells (fat-derived stem cells) containing drug-encapsulated nanoparticles show a skin regenerating effect, in particular using exosomes obtained when estradiol (E2) is used as a drug
- E2 estradiol
- the composition comprising the exosome according to the present invention can be said to be useful for the treatment of skin damage or skin ulcer.
- composition for treating skin diseases comprising exosomes secreted from fat-derived stem cells containing estrogen (estradiol: E2) -encapsulated nanoparticles
- AdSC Human adipose-derived stem cells
- a medium was added to give a concentration of The stem cell population P0 was cultured for 5 days in a 37 ° C. CO 2 incubator using the prepared medium (the stem cell population obtained by the subculture is referred to as “P1”).
- Stem cell population P1 is cultured for 5 days under the same culture conditions as described above (the stem cell population obtained by the subculture is referred to as “P2”) using the above-described preparation medium, and the procedure is the same as above.
- the exosomes secreted from the stem cell population P2 were separated from the culture medium to produce a test composition. Subsequently, secreted exosomes were separated from the culture medium for stem cell populations P3, P4 and P5 respectively produced by subculturing for 5 days each in the same manner, to produce a test composition.
- the measurement results of the mRNA expression level of VEGF-A in adipose-derived stem cells containing estrogen-encapsulated nanoparticles are shown in FIG. From this result, for example, in exosomes secreted from stem cell population P1 cultured in a medium to which estradiol-loaded PLGA nanoparticles were added to a concentration of 50 ⁇ g / 50,000 AdSC, VEGF-A protein translated from mRNA and And estradiol encapsulated in nanoparticles, and the test composition produced using the exosome has excellent efficacy in the treatment of skin diseases (particularly skin regeneration). Presumed.
- the measurement results of the mRNA expression level of FGF-2 in adipose-derived stem cells containing estrogen-encapsulated nanoparticles are shown in FIG. From this result, for example, in exosomes secreted from stem cell population P2 cultured in a medium to which estradiol-loaded PLGA nanoparticles were added to a concentration of 300 ⁇ g / 50,000 AdSC, FGF-2 protein translated from mRNA and And estradiol encapsulated in nanoparticles, and the test composition produced using the exosome has excellent efficacy in the treatment of skin diseases (particularly skin regeneration). Presumed.
- composition for treating skin diseases which comprises exosomes secreted from fat-derived stem cells containing vitamin C-encapsulated nanoparticles
- Example 3 In the same manner as in Example 3, except that vitamin C-loaded PLGA nanoparticles (see Production Example 3) were used instead of estradiol-loaded PLGA nanoparticles (see Production Example 2), the cells were produced by subculture for 5 days each For each of the stem cell populations P1 to P5, secreted exosomes were separated from the culture medium to produce a test composition. Furthermore, in the same manner as in Example 3, the amount of intracellular mRNA expression of VEGF-A, HGF and FGF-2 was measured for each of the stem cell populations P1 to P5 in Example 4.
- the measurement results of the mRNA expression level of VEGF-A in fat-derived stem cells containing vitamin C-encapsulated nanoparticles are shown in FIG. From this result, for example, in exosomes secreted from stem cell population P2 cultured in a medium to which estradiol-loaded PLGA nanoparticles were added to a concentration of 300 ⁇ g / 50,000 AdSC, VEGF-A protein translated from mRNA and It is presumed that the test composition produced using the exosome, which is rich in vitamin C encapsulated in nanoparticles, is excellent in the treatment of skin diseases.
- the measurement results of the mRNA expression level of FGF-2 in adipose-derived stem cells containing vitamin C-encapsulated nanoparticles are shown in FIG. From this result, for example, in exosomes secreted from stem cell population P3 cultured in a medium to which estradiol-loaded PLGA nanoparticles were added to a concentration of 200 ⁇ g / 50,000 AdSC, FGF-2 protein translated from mRNA and That are rich in vitamin C encapsulated in nanoparticles, and the test composition produced using the exosome has excellent efficacy in the treatment of skin diseases (especially skin regeneration) It is estimated to be.
- composition for treating skin diseases which comprises exosomes secreted from fat-derived stem cells containing retinoic acid-encapsulated nanoparticles
- Retinoic acid-loaded PLGA nanoparticles are used instead of estradiol-loaded PLGA nanoparticles (see Production Example 2), and the concentration of the drug-loaded nanoparticles in the culture medium is 25, 50, 100, 200 or 300 ⁇ g
- concentration of the drug-loaded nanoparticles in the culture medium is 25, 50, 100, 200 or 300 ⁇ g
- the secreted exosomes were separated from the culture medium to produce a test composition.
- the amount of intracellular mRNA expression of VEGF-A, HGF and FGF-2 was measured for each of the stem cell populations P1 to P5 in Example 5.
- the measurement results of the mRNA expression level of VEGF-A in adipose-derived stem cells containing retinoic acid-encapsulated nanoparticles are shown in FIG. From this result, for example, in exosomes secreted from stem cell population P1 cultured in a medium to which estradiol-loaded PLGA nanoparticles were added to a concentration of 100 ⁇ g / 50,000 AdSC, VEGF-A protein translated from mRNA and The test composition, which is rich in retinoic acid encapsulated in nanoparticles, and is manufactured using the exosome, is presumed to be excellent in the treatment of skin diseases.
- the measurement results of the HGF mRNA expression level in adipose-derived stem cells containing retinoic acid-encapsulated nanoparticles are shown in FIG. From this result, for example, exosomes secreted from the stem cell population P3 cultured in a medium to which estradiol-encapsulated PLGA nanoparticles were added to a concentration of 100 ⁇ g / 50,000 AdSC, HGF protein translated from mRNA, and The test composition, which is rich in retinoic acid encapsulated in particles, and is manufactured using the exosome, is presumed to be excellent in efficacy in the treatment of skin diseases (especially skin regeneration). Be done.
- the measurement results of the mRNA expression level of FGF-2 in adipose-derived stem cells containing retinoic acid-encapsulated nanoparticles are shown in FIG. From this result, for example, in exosomes secreted from stem cell population P3 cultured in a medium to which estradiol-loaded PLGA nanoparticles were added to a concentration of 100 ⁇ g / 50,000 AdSC, FGF-2 protein translated from mRNA and And retinoic acid encapsulated in nanoparticles, and the test composition produced using the exosome has excellent efficacy in treatment of skin diseases (particularly skin regeneration) It is estimated to be.
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Abstract
Description
[項1]
幹細胞から分泌されたエクソソームを含む皮膚疾患治療用組成物であって、
前記幹細胞は、薬物が生体吸収性ポリマーを含むナノ粒子に封入されてなる薬物封入ナノ粒子を含有する幹細胞である
ことを特徴とする、皮膚疾患治療用組成物。
[項2]
前記幹細胞が脂肪由来幹細胞である、項1に記載の組成物。
[項3]
前記薬物が、皮膚疾患の治療に有効であるとともに、幹細胞が産生する皮膚疾患の治療に有効な因子の発現量を亢進する薬物である、項1または2に記載の組成物。
[項4]
前記薬物がスタチンである、項1~3のいずれか一項に記載の組成物。
[項5]
前記薬物がエストロゲンである、項1~3のいずれか一項に記載の組成物。
[項6]
前記薬物がビタミンAまたはその誘導体である、項1~3のいずれか一項に記載の組成物。
[項7]
前記薬物がビタミンCまたはその誘導体である、項1~3のいずれか一項に記載の組成物。
[項8]
前記皮膚疾患が脱毛症又は無毛症である、項1~4、6および7のいずれか一項に記載の組成物。
[項9]
前記皮膚疾患が皮膚損傷又は皮膚潰瘍である、項1~3、5および6のいずれか一項に記載の組成物。
[項10]
経皮投与用の剤形を有する、項1~9のいずれか一項に記載の組成物。
[項11]
医薬品、医薬部外品または化粧品である、項1~10のいずれか一項に記載の組成物。
本発明において、エクソソームを回収するための幹細胞に含有させる、ナノ粒子に封入する「薬物」は、人体に対して作用を及ぼす効能を有する、より具体的には、幹細胞から分泌されるエクソソームに内包される成分に影響し、そのエクソソームを使用したときに皮膚疾患の治療用途に関する本発明の作用効果を奏させることができる、様々な物質から選択することができる。「幹細胞から分泌されるエクソソームに内包される成分」には、エクソソームに封入されていた「薬物」と、幹細胞によって産生される種々の因子(特に皮膚疾患の治療に有効な血管新生因子等の因子)が含まれ、「薬物」は、それ自体がエクソソームの内包成分に加わることができ、好ましくはさらに幹細胞が産生する因子の発現量を亢進することができる意味で、エクソソームの内包成分に「影響する」ものである。そのような「薬物」としては、例えば、ペプチド(ペプチドホルモンなどを含む)又はその誘導体、タンパク質、核酸、多糖類、ワクチン、アジュバント、水溶性または脂溶性低分子化合物に属する化合物から選択することができ、医薬品、医薬部外品または化粧品の成分として公知になっている薬物、特に皮膚疾患の治療にとって有効な医薬品、医薬部外品または化粧品の成分として公知になっている薬物であってもよい。
本発明において、「幹細胞」は、自己複製能および全能性、多能性又は多分化能を有する細胞を指し、当業者が理解する様々な種類の幹細胞が包含される。幹細胞としては、例えば胚性幹細胞(ES細胞)、人工多能性幹細胞(iPS細胞)及び間葉系幹細胞等の体性幹細胞が挙げられる。幹細胞は、典型的には所定の1種または2種以上の遺伝子またはタンパク質(いわゆるマーカー遺伝子またはマーカータンパク質)の発現が陽性または陰性であることをもって、他の細胞と区別することができる。
本発明において「皮膚疾患」とは、皮膚における異常や損傷を生じる疾患、または皮膚に生じた異常や損傷等の症状、状態等をいい、皮膚そのものの異常や損傷に係るもののみならず、皮膚における毛髪に関する異常等も含む。そのような皮膚疾患(症状、状態等)としては、例えば、重度熱傷等による皮膚損傷、褥瘡等の難治性皮膚潰瘍、放射線潰瘍、円形脱毛症や抗がん剤の副作用による脱毛等の脱毛症、及び無毛症等が挙げられる。なお、上記皮膚や毛髪の異常や損傷(症状、状態等)には、老化によるものも含まれる。
薬物としてスタチン(シンバスタチン)を用い、ナノ粒子の材料としてポリ乳酸重合体(PLA)又はポリ乳酸・グリコール酸共重合体(PLGA)を用いた、スタチン封入ナノ粒子を以下の手順で作製した。
薬物としてシンバスタチン10mgの代わりにエストラジオール(E2)10mgを用い、それ以外は作製例1のシンバスタチン封入PLGAナノ粒子と同様の作製方法により、エストラジオール封入PLGAナノ粒子を作製した。
薬物としてシンバスタチン10mgの代わりにビタミンC(パルミチン酸アスコルビル)10mgを用い、それ以外は作製例1のシンバスタチン封入PLGAナノ粒子と同様の作製方法により、ビタミンC封入PLGAナノ粒子を作製した。
薬物としてシンバスタチン10mgの代わりにレチノイン酸10mgを用い、それ以外は作製例1のシンバスタチン封入PLGAナノ粒子と同様の作製方法により、レチノイン酸封入PLGAナノ粒子を作製した。
模擬薬物としてシンバスタチン10mgの代わりにローダミン(赤色蛍光色素)10mgを用い、それ以外は作製例1のシンバスタチン封入PLAナノ粒子およびシンバスタチン封入PLGAナノ粒子と同様の作製方法により、ローダミン封入PLAナノ粒子およびローダミン封入PLGAナノ粒子を作製した。
後記参考例2(スタチン(シンバスタチン)封入ナノ粒子を用いた脂肪由来幹細胞の処理)の予備試験として、脂肪由来幹細胞を薬物(スタチン)封入ナノ粒子を処理する際の最適な処理濃度を検討するために、模擬薬物としてローダミンを封入した、作製例5により得られたローダミン封入ナノ粒子を用いて、以下の試験を行った。
予め、LiberaseTM RG(0.5mg/mL=0.47WU/mL, Sigma5401127001 50mg/vial)/HBSS(ThermoFisher14175095)溶液、及び10×溶血溶液(NH4Cl 8.3g, NaHCO31.2g, 0.5M EDTA溶液 200μL/100mL)を準備した。50mL吸引注射器内の脂肪3本(150mL、65歳女性より採取)をノズル付きプラスチックボトル(アズワン#1-4640-03 広口洗浄瓶 1000ml)に移し、等量のPBS(-)で洗浄・廃液を4、5回繰り返した。上記Liberase TM RG溶液(50mg/vialを20mLのHBSSで溶解し、半量10mLをHBSS 40mL(合計50mL)で希釈したのちに約150mLの脂肪組織に使用した。)を脂肪溶液のボトルに入れ、軽くVortexしてからシェーカー付恒温槽を用いて37℃で20分間振盪インキュベーションした。その後、20%FBS/DMEM F12 50mLを該ボトル内に加えて、酵素反応を停止させた。ボトルのノズルから液層(脂肪の下層)をセルストレーナー(100μm, BD)に通しながら複数の新しい50mLチューブに分けて回収した。1200rpm (300g)×5minで遠心(ブレーキ有り)し、上清を捨てた。1mM EDTA/PBS 40mL/チューブで細胞ペレットを懸濁し、セルストレーナー(40μm, BD)に通しながら同数の新しい50mLチューブに移した。1200rpm(300g)×5minで遠心(ブレーキ有り)し、上清を捨てた。1mMEDTA/PBS 2mlで細胞を懸濁し1本のチューブにまとめ、溶血溶液8mLを加えて混和後10分間冷所(OnIce)保存した(溶血操作)。1mM EDTA/PBSを45mL付近まで加えた後、1200rpm (300g)×5minで遠心し上清を捨てた。細胞ペレットをPBS(-)または10%DMEM F12で懸濁し、5%CO2インキュベーターで10%DMEMF12とともに3、4日間培養し、接着細胞を脂肪由来幹細胞(AdSC)として実験に用いた(P0)。継代培養する場合は、1:3~4の割合(3000-4000/cm2の密度)でさらに3、4日間継代培養した。
予め、コラゲナーゼVIII型(2mg/mL, Sigma #C2139)/1%BSA HBSS溶液をシェーカー付恒温槽37℃で解凍した。また、1mMEDTA/PBSは、EDTA(0.5MEDTA, pH 8.0, LifeTechnologies, AM9260G)、10X DPBS,Ca(-), Mg(-)(GIBCO, 14200-166)を希釈して作製した。その後、2、3匹のマウスを麻酔の後に心窩部より26~29G針付シリンジ(インスリンシリンジなど)で脱血死させた。皮下脂肪(鼠径部~背部)を採取し3.5cm培養皿(生理食塩水を中央に1滴滴下して脂肪組織が取り出しやすいようにおく)にまとめて置いた。脂肪組織を蓋の上に載せたままハサミで小片(20~30回程度)になるようにカットした後、脂肪組織を脂肪と同じ体積のコラゲナーゼ溶液とともに15mLチューブに入れた。キャップを閉め、チューブを転倒混和の後にシェーカー付恒温槽を用いて37℃で30分間インキュベーションした。10%FBS/DMEM F12培地を同量加えて酵素反応を停止させた。最上部の脂肪層を吸引除去した後に、上清をセルストレーナー(40μm, BD, 352340)に通して新しい50mLチューブに回収した。1200rpm(250g)×5minで遠心(ブレーキ有り)し、上清を捨てた。1mM EDTA/PBS(-)を10mlまでチューブに加えて細胞ペレットを懸濁した。1200rpm(250g)×5minで遠心(ブレーキ有り)し、上清を捨てた。細胞ペレットを10%FBS/DMEM F12培地で懸濁してから培養皿に播種した(P0)。5%CO2インキュベーターで3、4日間培養し、接着細胞をAdSCとして1:1で継代(P1)した。5%CO2インキュベーターで4、5日間培養し、接着細胞をAdSCとして1:3で継代(P2)した。80~90%程度まで細胞密度が増加した時点で実験に用いた。
上記方法により得られたヒト脂肪由来幹細胞の培地に、作製例5により得られたローダミン封入PLAナノ粒子を、その最終濃度が20μg/mL、50μg/mL、80μg/mL又は100μg/mLとなるように添加した。添加から1時間後(1h)又は2時間後(2h)に、ローダミン封入PLAナノ粒子の取り込みについて共焦点レーザー蛍光顕微鏡を用いて観察した。なお、核の染色はDAPIを用いて常法で染色した。その結果を図1に示す。
スタチン(シンバスタチン)封入ナノ粒子を取り込んだ脂肪由来幹細胞から、シンバスタチンがどのように放出されるのかを検討するために、培地中に放出されたシンバスタチンの量を経時的に測定した。具体的な手順は次の通りである。参考例1と同様に、ヒト脂肪由来幹細胞の培地に、100μg/mLの濃度でシンバスタチン封入PLAナノ粒子を添加して1時間培養した。その後、培地を交換し、培地交換から6時間後、18時間後、24時間、48時間、72時間、120時間、168時間及び336時間後に、シンバスタチン封入PLAナノ粒子を含有するヒト脂肪由来幹細胞から培地中に放出されたシンバスタチンの量をHPLC(High-pressure Liquid Chromatography)法により測定した。結果を図3に示す。
次に、シンバスタチン封入ナノ粒子による脂肪由来幹細胞の血管新生因子産生能に対する効果について検討するために、下記の手順で、脂肪由来幹細胞内における血管新生因子のmRNA発現量について定量PCR法を用いて解析した。本解析では、血管新生因子としてVEGF-A、VEGF-C及びFGF-2の細胞内mRNA発現量を測定した。
VEGF-A用フォワードプライマー:
5’- TTACTCTCACCTGCTTCT -3’(配列番号1)
VEGF-A用リバースプライマー:
5’- CTGCTTCTTCCAACAATG -3’(配列番号2)
VEGF-C用フォワードプライマー:
5’- TCAAGGACAGAAGAGACTA -3’(配列番号3)
VEGF-C用リバースプライマー:
5’- CCACATCTATACACACCTC -3’(配列番号4)
FGF-2用フォワードプライマー:
5’- TTCTTCCAATGTCTGCTAA -3’(配列番号5)
FGF-2用リバースプライマー:
5’- RGACCAATTATCCAAACTGAG -3’(配列番号6)
以下の手順で、スタチン封入ナノ粒子を取り込んだ脂肪由来幹細胞から分泌されたエクソソームを含む皮膚疾患治療用組成物を製造し、その皮膚疾患(脱毛症等)に対する治療効果について評価した。
1×106個のヒト脂肪由来幹細胞(参考例1参照)を、シンバスタチンをPLGAナノ粒子に封入したスタチン封入ナノ粒子(シンバスタチン封入PLGAナノ粒子、作製例1参照)2mgと1時間共培養した。その後、そのヒト脂肪由来細胞を72時間培養し、培地を回収し、超遠心法(210,000 RCF)によってその培地からエクソソームを分離した。分離したエクソソームを5%グリセリン水溶液に添加及び混合し、試験組成物S1を製造した。
ICRマウスに対して、300mg/kgのトリブロモエタノールを腹腔内投与して麻酔し、仰臥位に固定した。そのマウスの背部の皮膚に、試験組成物S1を1回塗布し、その1週間後に皮膚の状態を観察した。なお、エクソソームを含まない5%グリセリン水溶液(対照組成物A1)を塗布したICRマウス、及びスタチン封入ナノ粒子で処理されていないヒト脂肪由来細胞のエクソソームを含む5%グリセリン水溶液(対照組成物A2)を塗布したICRマウスを対照として、皮膚の状態を比較した。その結果を図6に示す。
シンバスタチン封入PLGAナノ粒子(作製例1参照)の代わりにエストラジオール封入PLGAナノ粒子(作製例2参照)を用いたこと以外は実施例1と同様にして、ヒト脂肪由来幹細胞のエクソソームを得た。当該エクソソームを5%グリセリン水溶液に添加及び混合し、試験組成物E1を製造した。
あらかじめ、麻酔下でDDYマウスを腹臥位に保定し、背部の左右の腹壁を切開した後に両側卵巣を摘出し、2ヶ月通常飼育することにより卵巣摘出DDYマウスを作製した。卵巣を摘出されたDDYマウスは皮膚組織の再生能が小さくなる特徴を有する。
HGF用フォワードプライマー:
5’- CCTCTATGAAAACAAAGACTAC -3’(配列番号7)
HGF用リバースプライマー:
5’- CTGTGTTCGTGTGGTATC -3’(配列番号8)
Claims (11)
- 幹細胞から分泌されたエクソソームを含む皮膚疾患治療用組成物であって、
前記幹細胞は、薬物が生体吸収性ポリマーを含むナノ粒子に封入されてなる薬物封入ナノ粒子を含有する幹細胞である
ことを特徴とする、皮膚疾患治療用組成物。 - 前記幹細胞が脂肪由来幹細胞である、請求項1に記載の組成物。
- 前記薬物が、皮膚疾患の治療に有効であるとともに、幹細胞が産生する皮膚疾患の治療に有効な因子の発現量を亢進する薬物である、請求項1または2に記載の組成物。
- 前記薬物がスタチンである、請求項1~3のいずれか一項に記載の組成物。
- 前記薬物がエストロゲンである、請求項1~3のいずれか一項に記載の組成物。
- 前記薬物がビタミンAまたはその誘導体である、請求項1~3のいずれか一項に記載の組成物。
- 前記薬物がビタミンCまたはその誘導体である、請求項1~3のいずれか一項に記載の組成物。
- 前記皮膚疾患が脱毛症又は無毛症である、請求項1~4、6および7のいずれか一項に記載の組成物。
- 前記皮膚疾患が皮膚損傷又は皮膚潰瘍である、請求項1~3、5および6のいずれか一項に記載の組成物。
- 経皮投与用の剤形を有する、請求項1~9のいずれか一項に記載の組成物。
- 医薬品、医薬部外品または化粧品である、請求項1~10のいずれか一項に記載の組成物。
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| CN111297900A (zh) * | 2020-05-13 | 2020-06-19 | 优赛生命科技有限公司 | 一种富含脂肪干细胞外泌体的组合物及其应用 |
| JP2023513394A (ja) * | 2020-01-20 | 2023-03-30 | イーブイ、セル、バイオテック、(コアンチョウ)、カンパニー、リミテッド | 細胞外小胞及びその皮膚製品における使用 |
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| KR102368442B1 (ko) * | 2021-02-19 | 2022-02-28 | 주식회사 엑소코바이오 | 생리활성이 강화된 엑소좀의 생산방법 및 이의 응용 |
| CN114410576B (zh) * | 2022-01-06 | 2025-03-07 | 上海市同济医院 | 一种脂肪干细胞外泌体在生发中的用途 |
| CN116808037A (zh) * | 2023-07-06 | 2023-09-29 | 中国药科大学 | Pitavastatin Calcium在制备缓解或治疗过敏性接触性皮炎的药物中的应用 |
| CN118319828B (zh) * | 2024-04-17 | 2024-10-29 | 深圳市发道生物科技有限公司 | 一种乌发生发组合物及包含其的洗发制剂和制备方法 |
| WO2026076660A1 (en) * | 2024-10-11 | 2026-04-16 | L'oreal | Cosmetic composition for caring for keratin materials |
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| JP2023513394A (ja) * | 2020-01-20 | 2023-03-30 | イーブイ、セル、バイオテック、(コアンチョウ)、カンパニー、リミテッド | 細胞外小胞及びその皮膚製品における使用 |
| JP7741559B2 (ja) | 2020-01-20 | 2025-09-18 | イーブイ、セル、バイオテック、(コアンチョウ)、カンパニー、リミテッド | 細胞外小胞及びその皮膚製品における使用 |
| US12427168B2 (en) | 2020-01-20 | 2025-09-30 | Ev Cell Biotech (Guangzhou) Co., Ltd. | Extracellular vesicle and use thereof in skin products |
| CN111297900A (zh) * | 2020-05-13 | 2020-06-19 | 优赛生命科技有限公司 | 一种富含脂肪干细胞外泌体的组合物及其应用 |
| CN111297900B (zh) * | 2020-05-13 | 2020-08-11 | 优赛生命科技有限公司 | 一种富含脂肪干细胞外泌体的组合物及其应用 |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20200113225A (ko) | 2020-10-06 |
| AU2019211646A1 (en) | 2020-08-06 |
| JPWO2019146612A1 (ja) | 2020-11-26 |
| CN112236168A (zh) | 2021-01-15 |
| EP3744347A4 (en) | 2021-12-01 |
| US20240180971A1 (en) | 2024-06-06 |
| SG11202007082PA (en) | 2020-08-28 |
| EP3744347A1 (en) | 2020-12-02 |
| US20200345783A1 (en) | 2020-11-05 |
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