WO2015160218A1 - 가교된 폴리포스포릴콜린으로 코팅된 체내 삽입용 보형물 - Google Patents
가교된 폴리포스포릴콜린으로 코팅된 체내 삽입용 보형물 Download PDFInfo
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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
- A61L27/00—Materials for grafts or prostheses or for coating grafts or prostheses
- A61L27/28—Materials for coating prostheses
- A61L27/34—Macromolecular materials
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/0059—Cosmetic or alloplastic implants
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/0063—Implantable repair or support meshes, e.g. hernia meshes
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/12—Mammary prostheses
-
- 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
- A61L27/00—Materials for grafts or prostheses or for coating grafts or prostheses
- A61L27/28—Materials for coating prostheses
-
- 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
- A61L27/00—Materials for grafts or prostheses or for coating grafts or prostheses
- A61L27/28—Materials for coating prostheses
- A61L27/30—Inorganic materials
- A61L27/32—Phosphorus-containing materials, e.g. apatite
-
- 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
- A61L27/00—Materials for grafts or prostheses or for coating grafts or prostheses
- A61L27/50—Materials characterised by their function or physical properties, e.g. injectable or lubricating compositions, shape-memory materials, surface modified materials
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D1/00—Processes for applying liquids or other fluent materials
- B05D1/02—Processes for applying liquids or other fluent materials performed by spraying
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/0077—Special surfaces of prostheses, e.g. for improving ingrowth
- A61F2002/0086—Special surfaces of prostheses, e.g. for improving ingrowth for preferentially controlling or promoting the growth of specific types of cells or tissues
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/0077—Special surfaces of prostheses, e.g. for improving ingrowth
- A61F2002/009—Special surfaces of prostheses, e.g. for improving ingrowth for hindering or preventing attachment of biological tissue
-
- 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
- A61L2300/00—Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices
- A61L2300/20—Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices containing or releasing organic materials
- A61L2300/216—Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices containing or releasing organic materials with other specific functional groups, e.g. aldehydes, ketones, phenols, quaternary phosphonium groups
-
- 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
- A61L2300/00—Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices
- A61L2300/20—Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices containing or releasing organic materials
- A61L2300/22—Lipids, fatty acids, e.g. prostaglandins, oils, fats, waxes
-
- 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
- A61L2400/00—Materials characterised by their function or physical properties
- A61L2400/18—Modification of implant surfaces in order to improve biocompatibility, cell growth, fixation of biomolecules, e.g. plasma treatment
-
- 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
- A61L2420/00—Materials or methods for coatings medical devices
- A61L2420/02—Methods for coating medical devices
-
- 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
- A61L2430/00—Materials or treatment for tissue regeneration
- A61L2430/04—Materials or treatment for tissue regeneration for mammary reconstruction
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F2/00—Processes of polymerisation
- C08F2/46—Polymerisation initiated by wave energy or particle radiation
- C08F2/48—Polymerisation initiated by wave energy or particle radiation by ultraviolet or visible light
Definitions
- the present invention provides a implant coating composition for implantation including a photoinitiator, a crosslinking agent and a phosphorylcholine (PC) monomer having an acrylate group, a method for coating an implant for implantation using the coating composition, and a crosslinked polyphosphorylcholine It relates to a coated molding prosthesis.
- a implant coating composition for implantation including a photoinitiator, a crosslinking agent and a phosphorylcholine (PC) monomer having an acrylate group
- PC phosphorylcholine
- Breast augmentation accounts for about 20% of the world's plastic surgeries, and their share increases even more when reconstructive surgery is performed, such as in breast cancer patients.
- the surface of breast implant implants which are widely used, is made of polydimethylsiloxane (PDMS) material, and about 17.5% of patients undergoing breast augmentation / reconstruction are abnormal fibers around the implant because of chemical properties different from the actual breast tissue.
- PDMS polydimethylsiloxane
- any implant when any implant is inserted into the living body, it forms a capsule due to the defense mechanism that separates the foreign body of the living body from the tissue, and excessive film formation is caused by the body reaction.
- the collagen-fiber capsule thickens causing pain and deformation of the implant.
- Many externally implanted artificial implants are recognized as foreign substances in vivo, whereby various proteins in body fluids are adsorbed, followed by thrombus formation, immune response, tissue modification, necrosis and / or degeneration through various biochemical processes. Therefore, coating the surface of the implant with a biocompatible material to prevent it from being recognized as an external material can be said to be the most important factor in completing a biocompatible implant for implants including a reduction in film construction.
- Polydimethylsiloxane (PDMS) -based materials which are used as representative surface materials of implants for implantation, have high oxygen permeability, excellent mechanical properties, optical clarity, self-sealing, convenient processability and chemical stability. According to ophthalmic biomaterials. It is applied to various medical devices such as microfluidic devices, artificial lungs and artificial finger joints. On the other hand, the inherent hydrophobicity and bioadhesion tendency of PDMS are the biggest limitations in utilizing the PDMS as a biomaterial. For example, nonspecific protein adsorption to such substances is recognized as the first event that causes subsequent events including thrombus formation, foreign body reactions, bacterial infections and other undesirable reactions.
- biocompatibility hemocompatibility such as prevention of thrombus formation, and the effects of protein or cell adsorption, etc., and thus has been studied as a surface material of drug delivery, tissue engineering and various other biological materials. Therefore, polymethaacryloyloxyethyl phosphorylcholine (PMPC) has already been used as a coating for bioimplants such as drug-eluting stents, and has shown excellent biocompatibility.
- PMPC polymethaacryloyloxyethyl phosphorylcholine
- the present inventors have diligently researched to produce silicone implants in which foreign body reactions caused by artificial implants inserted in vivo are suppressed by using a polymer that mimics a biological membrane, and thus, phosphatidyl choline (PC), which is a main component of the biological membrane phospholipid, is obtained.
- PC phosphatidyl choline
- the biocompatibility can be suppressed by insertion in the body, and the crosslinking can be suppressed. It was confirmed that the coating is not easily peeled off even by a strong stimulus to improve the strength and completed the present invention.
- One object of the present invention is to provide an implant coating composition for incorporation comprising a photoinitiator, a crosslinking agent and a phosphorylcholine (PC) monomer having an acrylate group.
- a photoinitiator e.g., a photoinitiator, a crosslinking agent and a phosphorylcholine (PC) monomer having an acrylate group.
- PC phosphorylcholine
- Another object of the present invention is to add the coating composition to the implant for implantation; And irradiating UV rays to the implant for implantation into the body to which the coating composition is applied.
- Another object of the present invention is to provide an implant for implantation that is coated with crosslinked polyphosphorylcholine.
- Intrabody implants coated with polyphosphorylcholine crosslinked by a simple method of adding a coating composition comprising a photoinitiator, a crosslinking agent, and a phosphorylcholine (PC) monomer having an acrylate group and irradiating with ultraviolet rays were prepared.
- the crosslinked polyphosphorylcholine coatings can be prepared and not only impart hydrophilicity to the surface, but also significantly reduce the adhesion of fibroblasts, which can cause side effects such as protein and encapsulation.
- it has a coating strength that does not peel off due to the stimulus, so it does not peel off even after violent movement after insertion into the body, and thus, it can be usefully used in the preparation of implants for implants having reduced side effects, such as breast implant implants.
- FIG. 1 is a view schematically showing a coating method (crosslinked) and a conventional coating method (Normal) using crosslinking according to the present invention.
- Figure 2 is a view showing the water contact angle of the surface and non-coated surface (Noncoated) prepared by the coating method and the conventional coating method using the crosslinking according to the present invention.
- FIG 3 is a view showing the surface element analysis results by XPS of the surface and the uncoated surface prepared by the coating method and the conventional coating method using the crosslinking according to the present invention.
- FIG. 4 is a view showing a coating method using crosslinking according to the present invention for BSA adsorption on an uncoated surface and a decrease in BSA adsorption rate on surfaces prepared by conventional coating methods.
- FIG. 5 is a diagram showing a coating method using crosslinking according to the present invention for BPF adsorption on an uncoated surface and a decrease in BPF adsorption rate on surfaces prepared by conventional coating methods.
- Figure 6 is a diagram showing the cell adsorption rate on the surface prepared by the coating method and the conventional coating method using a crosslinking method according to the present invention for the adsorption of cells (NIH-3T3) on the uncoated surface.
- FIG. 7 is a view showing the thickness of the coating formed on the implant inserted into the rat observed under a microscope by H & E staining.
- FIG. 8 is a diagram showing the results of measuring cellularity and vascularity after 4 and 12 weeks in the insert inserting the implant.
- FIG. 9 is a diagram showing the expression levels of TGF- ⁇ , ⁇ -SMA (smooth muscle actin), myeloperoxidase and CD34 measured by immunohistochemistry analysis in the rat insert.
- the present invention provides a implant coating composition for incorporation comprising a phosphorylcholine (PC) monomer having a photoinitiator, a crosslinking agent and an acrylate group.
- PC phosphorylcholine
- the present invention focuses on the formation of a linear phosphorylcholine polymer by the polymerization of phosphorylcholine having an acrylate group by radicals formed by irradiating ultraviolet rays to a photoinitiator, and further adding a crosslinking agent to the linear phosphorylcholine polymer.
- a crosslinking agent to the linear phosphorylcholine polymer.
- it is characterized by forming a polymer film of the cross-linked with each other.
- the mesh-like polymer film crosslinked by the crosslinking agent is characterized in that the coating strength is improved and is not damaged even by a strong stimulus such as ultrasonication.
- prosthesis for implantation is also referred to simply as “prosthesis” and is a structure inserted into the body for reconstruction or replacement of damaged or defective biological tissue, for use in cosmetic surgery, or for treatment. It may be in the form of a solid form or a closed bag form with fluidity.
- It may be a material containing a functional group capable of providing a radical capable of forming a bond with a terminal including a C ⁇ C bond of the acrylate by a photoinitiator so as to be covalently bonded.
- any material used in the implant for implants known in the art can be used without limitation.
- the outer surface material of the implant for implantation may be polydimethylsiloxane (PDMS), hydroxyapatite (HA), polylactic acid (PLA), polyglycolic acid (PGA) , Polytetrafluoroethylene (PTFE), polyethylene terephthalate (PET), polypropylene, polyamides, polyacetal, polyester ) Or polymethyl methacrylate (polymethyl methacrylate) material, but is not limited thereto.
- PDMS polydimethylsiloxane
- HA hydroxyapatite
- PLA polylactic acid
- PGA polyglycolic acid
- PTFE polytetrafluoroethylene
- PET polyethylene terephthalate
- polypropylene polyamides
- polyacetal polyacetal
- polyester polymethyl methacrylate
- polymethyl methacrylate polymethyl methacrylate
- the phosphorylcholine having an acrylate group may be methacryloyloxyethylphosphorylcholine (MPC) or acryloyloxyethylphosphorylcholine (APC), but is not limited thereto. It is not limited to the specific chemical formula, and includes, without limitation, any monomer of acrylate series including phosphorylcholine or methacrylate including amphoteric ions including phosphorus and nitrogen.
- photoinitiator of the present invention is a material capable of receiving light to form radicals. Therefore, by irradiating light to the photoinitiator to form a radical may cause a radical polymerization reaction (radical polymerization), wherein the light may preferably be ultraviolet light.
- the radical polymerization reaction is a polymerization method for forming a polymer by continuous addition of free radicals, and the radicals may be generally formed through various mechanisms by separate initiator molecules.
- the radicals formed form a stable single bond using one pi bond electron from the polymer monomer including the double bond, and the double bond is converted into a single bond and is added to another carbon which does not form a bond with the radical.
- the radicals formed may be grown while repeating the above-described process.
- the photoinitiator benzophenone, benzoyl peroxide, azobisisobutyronitrile (IBN) or 2,2-dimethoxy-2-phenylacetophenone (2,2-dimethoxy-2- phenylacetophenone (DMPA), but is not limited thereto.
- the crosslinking agent is dipentaerythritol pentaacrylate, dipentaerythritol hexaacrylate, ethylene glycol diacrylate, ethylene glycol dimethacrylate, allyl methacrylate, acetoacetoxyethyl methacrylate, isocyanate It may be selected from the group consisting of nattoethyl methacrylate, isobutyl methacrylate, normal butyl methacrylate and combinations thereof, but is not limited thereto.
- the coating composition according to the present invention may include, but is not limited to, the photoinitiator in an amount of 0.01 to 0.2 mol% based on the phosphorylcholine monomer.
- the coating composition according to the present invention may include, but is not limited to, the crosslinking agent in an amount of 0.01 to 2.0 mol% based on the phosphorylcholine monomer.
- the amount of the photoinitiator and / or crosslinking agent is lower than the lower limit of the above range, that is, less than 0.01 mol%, the amount of polymer generated on the surface, for example, the number of polymer strands and / or the length (molecular weight) of each polymer strand is remarkable.
- the MPC may not be able to cover the surface of the implant evenly enough or crosslinking may not be carried out enough to exhibit the desired physical properties or may not be obtained at the desired coating strength and may be peeled off during the cleaning process.
- the amount of the photoinitiator and / or crosslinking agent is higher than the upper limit of the above range, that is, the content of the photoinitiator exceeds 0.2 mol% or the crosslinker content exceeds 2.0 mol%, the elasticity of the implant by the excessive crosslinking It may not be hardened and may be excessively hardened, resulting in unnecessary waste of the sample.
- the present invention provides a method for preparing an implant for implantation, comprising the steps of: applying a coating composition according to the invention to an implant for implantation; And it provides a method of coating the implant for implantation, including the step of irradiating ultraviolet rays to the implant for implantation to which the coating composition is added.
- the coating composition may be irradiated with ultraviolet rays after applying the coating composition so as to evenly contact the surface of the implant so that the surface of the implant for implantation may be evenly coated.
- the present invention provides for implantation implants coated with crosslinked polyphosphorylcholine.
- the definition and characteristics of the implant for implantation are as described above.
- the crosslinking reaction can be carried out using any method known in the art without limitation.
- the crosslinking reaction may be performed by irradiation with ultraviolet rays.
- the implant for implantation may be used for reconstruction or replacement of damaged or defective biological tissue, for cosmetic use, or for treatment, for example for breast enlargement or reconstruction, but is not limited thereto. Do not.
- breast implant prostheses coated with the crosslinked polyphosphorylcholine according to the present invention can significantly reduce the adsorption of proteins and fibroblasts, thereby lowering the possibility of side effects such as spherical contraction, and have a strong coating strength. Since the coating does not peel off even on the magnetic poles, it is stable even in violent movement and there is no concern about deterioration due to peeling of the coating over time.
- EGDMA ethylene glycol dimethacrylate
- the coated implant was then washed twice with ultrasound for 10 minutes prior to use in the assay to remove excess reactants.
- the washing method using the ultrasonic wave is a slightly more radical method than the washing method used in general, and used this rather powerful washing method to mimic the peeling of the coating due to movement after implantation in vivo.
- the silicone implant is coated in the same manner as in Example 1 except that the initiator solution and the polymer unit solution do not include an initiator. It was.
- the composition of each solution is shown in Table 1 below. Conditions for the radical reaction and washing method are also shown in Table 1.
- the forward angle is a hydrophobicity of the surface
- the backward angle is a numerical value representing the surface hydrophilicity relatively well, in the present invention, since the amount of change of the backward angle is larger than the forward angle, information about the hydrophilicity of the surface through the change of the backward angle Obtained.
- the acquired image and the water contact angle determined therefrom are shown in FIG. 2.
- the uncoated PDMS used as the negative control group had a high hydrophobicity, and thus exhibited a high water contact angle at both the forward and backward angles, but was significantly decreased at the surface coated with PMPC and coated with crosslinked PMPC. On one surface it was further reduced. That is, it is confirmed that the hydrophilicity is obtained by PMPC coating, and more crosslinked.
- a BCA assay was performed to quantify the amount of protein adsorbed on the surface.
- a Thermo Scientific BCA kit was used, and an assay solution was prepared by mixing Sample A, Sample B, and Sample C included in the kit in a volume ratio of 25: 24: 1.
- Each of the washed PDMS was immersed in fresh DPBS buffer, incubated at 60 ° C. for 1 hour by adding the same amount of assay solution as the buffer, and then absorbance at 570 nm was measured to determine the relative amount of protein adsorbed on the surface. The results are shown in FIGS. 4 and 5, respectively.
- the adsorption of BSA to the PDMS surface showed a 24% reduction in PMPC coated surfaces and a 33% reduction in crosslinked PMPC surfaces compared to uncoated surfaces.
- Adsorption of BPF on PDMS surfaces showed a 45% reduction in PMPC coated surfaces and a 62% reduction in crosslinked PMPC surfaces compared to uncoated surfaces. That is, the adsorption was reduced at the surface coated with PMPC compared to the surface uncoated for both BSA and BPF, and in particular, a more significant decrease in protein adsorption was observed at the surface coated with crosslinked PMPC.
- the crosslinked or non-crosslinked prepared through Example 1 (Crosslinked) and Comparative Example 1 (Normal)
- the degree of cell adsorption was confirmed by culturing fibroblast NIH 3T3 cells in PDMS coated with PMPC.
- the NIH-3T3 cells were cultured in DMEM medium containing 10% FBS at 37 ° C. containing 5% carbon dioxide.
- 30,000 cells per 1.5 cm diameter PDMS were dispensed and incubated for 45 hours at 37 ° C. containing 5% carbon dioxide, followed by a light wash with fresh DMEM medium (containing 10% FBS) followed by a CCK assay.
- CCK solution was made from Dojindo Inc., each washed PDMS in fresh DMEM medium (containing 10% FBS) and added 5% carbon dioxide solution in the amount corresponding to 10% of the volume of the medium, containing 5% carbon dioxide. Incubated at 37 ° C. for 4 hours and absorbance at 450 nm to determine the relative amount of cells adsorbed on the surface. The results are shown in FIG. 6.
- the PDMS coated with the crosslinked PMPC according to the present invention can not only significantly reduce side effects such as film formation due to overproliferation of fibroblasts after molding, but also as described in Example 1 above. Since the coating state can be maintained, it can be expected that the side effects due to peeling of the coating can be reduced by maintaining the coating state even after intense movement or time flow after molding.
- the surface of the PMMS coated PDMS block and the untreated surface PDMS block were inserted into the left and right sides of Sprague-Dawley rats, respectively, and grown for 1 month and 3 months, and then observed in vivo.
- the thickness of the film formed surrounding the surface of the implant was measured.
- the thickness of the film was observed under a microscope by H & E staining, and the results are shown in FIG. 7. As shown in FIG. 7, the thickness of the film formed on the surface of the implant inserted in the body was thinner at 1 month and 3 months when the PDMS-coated PDMS block was inserted.
- the reduction of the film formation on the implant coated with PMPC indicates that the foreign body reaction was reduced by the coating.
- FIG. 8 cellularity and vascularity were measured and shown in FIG. 8, and TGF- ⁇ , ⁇ -SMA (smooth muscle actin), and myeloperoxidase through immunohistochemistry analysis. ) And CD34 expression levels are measured and shown in FIG. 9.
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- Health & Medical Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Transplantation (AREA)
- Veterinary Medicine (AREA)
- Public Health (AREA)
- General Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Medicinal Chemistry (AREA)
- Dermatology (AREA)
- Epidemiology (AREA)
- Engineering & Computer Science (AREA)
- Vascular Medicine (AREA)
- Biomedical Technology (AREA)
- Cardiology (AREA)
- Heart & Thoracic Surgery (AREA)
- Inorganic Chemistry (AREA)
- Materials For Medical Uses (AREA)
- Paints Or Removers (AREA)
- Prostheses (AREA)
- Polymerisation Methods In General (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
Abstract
Description
Claims (12)
- 광개시제, 가교제 및 아크릴레이트기를 갖는 포스포릴콜린(phosphorylcholine; PC) 단량체를 포함하는 체내 삽입용 보형물 코팅 조성물.
- 제1항에 있어서,상기 아크릴레이트기를 갖는 포스포릴콜린은 메타크릴로일옥시에틸포스포릴콜린(MPC) 또는 아크릴로일옥시에틸포스포릴콜린(APC)인 것인 코팅 조성물.
- 제1항에 있어서,상기 광개시제는 벤조페논, 벤조일퍼옥사이드(benzoyl peroxide), 아조비스이소부티로니트릴(azobisisobutyronitrile; AIBN) 및 2,2-디메톡시-2-페닐아세토페논(2,2-dimethoxy-2-phenylacetophenone; DMPA)로 구성된 군으로부터 선택되는 것인 코팅 조성물.
- 제1항에 있어서,상기 가교제는 디펜타에리트리톨 펜타아크릴레이트, 디펜타에리트리톨 헥사아크릴레이트, 에틸렌글리콜 디아크릴레이트, 에틸렌글리콜 디메타크릴레이트, 알릴 메타크릴레이트, 아세토아세톡시에틸 메타크릴레이트, 이소시아나토에틸 메타크릴레이트, 이소부틸메타크릴레이트, 노르말부틸메타크릴레이트 및 이들의 조합으로 구성된 군으로부터 선택되는 것인 코팅 조성물.
- 제1항에 있어서,상기 광개시제는 포스포릴콜린 단량체에 대해 0.01 내지 0.2 몰%로 포함하는 것인 코팅 조성물.
- 제1항에 있어서,상기 가교제는 포스포릴콜린 단량체에 대해 0.01 내지 2.0 몰%로 포함하는 것인 코팅 조성물.
- 체내 삽입용 보형물에 제1항 내지 제6항 중 어느 한 항에 기재된 코팅 조성물을 가하는 단계; 및상기 코팅 조성물을 가한 체내 삽입용 보형물에 자외선을 조사하는 단계를 포함하는,체내 삽입용 보형물의 코팅방법.
- 가교된 폴리포스포릴콜린으로 코팅된 체내 삽입용 보형물.
- 제8항에 있어서,상기 체내 삽입용 보형물의 외부 표면 재질은 폴리디메틸실록산계(polydimethylsiloxane; PDMS), 하이드록시아파타이트(hydroxyapatite; HA), 폴리락트산계(polylactic acid; PLA), 폴리글리콜산계(polyglycolic acid; PGA), 폴리테트라플루오로에틸렌계(polytetrafluoroethylene; PTFE), 폴리에틸렌테레프탈레이트계(polyethylene terephthalate; PET), 폴리프로필렌계(polypropylene), 폴리아미드계(polyamides), 폴리아세탈계(polyacetal), 폴리에스테르계(polyester) 및 폴리메틸메타크릴레이트계(polymethyl metacrylate) 소재로 구성된 군으로부터 선택되는 것인 체내 삽입용 보형물.
- 제8항에 있어서,보형물의 표면에 제1항 내지 제6항 중 어느 한 항에 기재된 코팅 조성물을 가한 후 가교반응시켜 제조한 것이 특징인 체내 삽입용 보형물.
- 제8항에 있어서,생체조직 재건 또는 대체를 위한 치료용 또는 미용을 위한 성형용인 것인 체내 삽입용 보형물.
- 제11항에 있어서,유방 확대 또는 재건용인 것인 체내 삽입용 보형물.
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP15779986.7A EP3132810B1 (en) | 2014-04-17 | 2015-04-17 | Prosthesis for in vivo insertion, coated with cross-linked polyphosphorylcholine |
| US15/304,780 US11129706B2 (en) | 2014-04-17 | 2015-04-17 | Prosthesis for in vivo insertion, coated with cross-linked polyphosphorylcholine |
| BR112016024206-8A BR112016024206B1 (pt) | 2014-04-17 | 2015-04-17 | prótese para inserção in vivo revestida com polifosforilcolina reticulada |
| JP2017506238A JP6702939B2 (ja) | 2014-04-17 | 2015-04-17 | 架橋されたポリホスホリルコリンでコーティングされた体内挿入用補形物および同体内挿入用補形物をコーティングする方法 |
| CN201580030567.6A CN106456834B (zh) | 2014-04-17 | 2015-04-17 | 涂覆有交联的聚磷酸胆碱的体内植入式假体 |
| US17/412,124 US11925547B2 (en) | 2014-04-17 | 2021-08-25 | Prosthesis for in vivo insertion, coated with cross-linked polyphosphorylcholine |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020140045713A KR101644686B1 (ko) | 2014-04-17 | 2014-04-17 | 가교된 폴리포스포릴콜린으로 코팅된 체내 삽입용 보형물 |
| KR10-2014-0045713 | 2014-04-17 |
Related Child Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US15/304,780 A-371-Of-International US11129706B2 (en) | 2014-04-17 | 2015-04-17 | Prosthesis for in vivo insertion, coated with cross-linked polyphosphorylcholine |
| US17/412,124 Division US11925547B2 (en) | 2014-04-17 | 2021-08-25 | Prosthesis for in vivo insertion, coated with cross-linked polyphosphorylcholine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2015160218A1 true WO2015160218A1 (ko) | 2015-10-22 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/KR2015/003879 Ceased WO2015160218A1 (ko) | 2014-04-17 | 2015-04-17 | 가교된 폴리포스포릴콜린으로 코팅된 체내 삽입용 보형물 |
Country Status (7)
| Country | Link |
|---|---|
| US (2) | US11129706B2 (ko) |
| EP (1) | EP3132810B1 (ko) |
| JP (2) | JP6702939B2 (ko) |
| KR (1) | KR101644686B1 (ko) |
| CN (1) | CN106456834B (ko) |
| BR (1) | BR112016024206B1 (ko) |
| WO (1) | WO2015160218A1 (ko) |
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| CN108210993A (zh) * | 2018-04-09 | 2018-06-29 | 王建东 | 一种高相容性镁基生物复合材料的制备方法 |
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| KR102414314B1 (ko) * | 2019-02-27 | 2022-06-30 | 사회복지법인 삼성생명공익재단 | 코팅층을 포함하는 안질환용 임플란트 |
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| KR20250114989A (ko) * | 2024-01-23 | 2025-07-30 | 주식회사 그래피 | 양쪽성 이온을 포함하는 코팅 조성물 및 이를 이용하여 표면 코팅된 투명 치아 교정장치 |
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- 2015-04-17 BR BR112016024206-8A patent/BR112016024206B1/pt active IP Right Grant
- 2015-04-17 CN CN201580030567.6A patent/CN106456834B/zh active Active
- 2015-04-17 WO PCT/KR2015/003879 patent/WO2015160218A1/ko not_active Ceased
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Also Published As
| Publication number | Publication date |
|---|---|
| KR20150121270A (ko) | 2015-10-29 |
| US11925547B2 (en) | 2024-03-12 |
| BR112016024206A2 (pt) | 2017-08-15 |
| US20210378814A1 (en) | 2021-12-09 |
| BR112016024206B1 (pt) | 2021-02-09 |
| JP6702939B2 (ja) | 2020-06-03 |
| US20170035555A1 (en) | 2017-02-09 |
| EP3132810A1 (en) | 2017-02-22 |
| JP2017516906A (ja) | 2017-06-22 |
| EP3132810B1 (en) | 2025-10-29 |
| JP2019205836A (ja) | 2019-12-05 |
| CN106456834B (zh) | 2019-12-17 |
| EP3132810C0 (en) | 2025-10-29 |
| US11129706B2 (en) | 2021-09-28 |
| KR101644686B1 (ko) | 2016-08-02 |
| CN106456834A (zh) | 2017-02-22 |
| EP3132810A4 (en) | 2017-12-20 |
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