WO2001091821A1 - Supports a base de collagene pour l'ingenierie tissulaire et la preparation de biomateriaux - Google Patents
Supports a base de collagene pour l'ingenierie tissulaire et la preparation de biomateriaux Download PDFInfo
- Publication number
- WO2001091821A1 WO2001091821A1 PCT/FR2001/001631 FR0101631W WO0191821A1 WO 2001091821 A1 WO2001091821 A1 WO 2001091821A1 FR 0101631 W FR0101631 W FR 0101631W WO 0191821 A1 WO0191821 A1 WO 0191821A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- collagen
- cells
- membrane
- origin
- sponge
- Prior art date
Links
- 108010035532 Collagen Proteins 0.000 title claims abstract description 183
- 102000008186 Collagen Human genes 0.000 title claims abstract description 183
- 229920001436 collagen Polymers 0.000 title claims abstract description 183
- 238000002360 preparation method Methods 0.000 title claims description 31
- 239000012620 biological material Substances 0.000 title description 7
- 239000012528 membrane Substances 0.000 claims abstract description 46
- 239000000512 collagen gel Substances 0.000 claims abstract description 39
- 238000012360 testing method Methods 0.000 claims abstract description 39
- 239000000515 collagen sponge Substances 0.000 claims abstract description 33
- 239000002131 composite material Substances 0.000 claims abstract description 33
- 230000003211 malignant effect Effects 0.000 claims abstract description 11
- 238000000338 in vitro Methods 0.000 claims abstract description 7
- 239000012530 fluid Substances 0.000 claims abstract description 6
- 238000001727 in vivo Methods 0.000 claims abstract description 5
- 239000013543 active substance Substances 0.000 claims abstract description 4
- 210000004027 cell Anatomy 0.000 claims description 74
- 210000003491 skin Anatomy 0.000 claims description 66
- 238000000034 method Methods 0.000 claims description 58
- 210000002950 fibroblast Anatomy 0.000 claims description 36
- 241000283690 Bos taurus Species 0.000 claims description 28
- MKRTXPORKIRPDG-UHFFFAOYSA-N diphenylphosphoryl azide Chemical compound C=1C=CC=CC=1P(=O)(N=[N+]=[N-])C1=CC=CC=C1 MKRTXPORKIRPDG-UHFFFAOYSA-N 0.000 claims description 28
- 210000004369 blood Anatomy 0.000 claims description 26
- 239000008280 blood Substances 0.000 claims description 26
- 238000004519 manufacturing process Methods 0.000 claims description 25
- 210000002510 keratinocyte Anatomy 0.000 claims description 22
- 229920001661 Chitosan Polymers 0.000 claims description 18
- 238000004132 cross linking Methods 0.000 claims description 18
- 241000251468 Actinopterygii Species 0.000 claims description 17
- 238000004108 freeze drying Methods 0.000 claims description 17
- 230000008569 process Effects 0.000 claims description 17
- 230000018044 dehydration Effects 0.000 claims description 15
- 238000006297 dehydration reaction Methods 0.000 claims description 15
- 239000000203 mixture Substances 0.000 claims description 14
- 210000001519 tissue Anatomy 0.000 claims description 14
- 229920002683 Glycosaminoglycan Polymers 0.000 claims description 12
- 238000007906 compression Methods 0.000 claims description 12
- 230000006835 compression Effects 0.000 claims description 12
- 210000002752 melanocyte Anatomy 0.000 claims description 9
- FHVDTGUDJYJELY-UHFFFAOYSA-N 6-{[2-carboxy-4,5-dihydroxy-6-(phosphanyloxy)oxan-3-yl]oxy}-4,5-dihydroxy-3-phosphanyloxane-2-carboxylic acid Chemical compound O1C(C(O)=O)C(P)C(O)C(O)C1OC1C(C(O)=O)OC(OP)C(O)C1O FHVDTGUDJYJELY-UHFFFAOYSA-N 0.000 claims description 8
- 239000001913 cellulose Substances 0.000 claims description 8
- 229920002678 cellulose Polymers 0.000 claims description 8
- 210000000716 merkel cell Anatomy 0.000 claims description 8
- 210000004378 sebocyte Anatomy 0.000 claims description 8
- 210000001612 chondrocyte Anatomy 0.000 claims description 7
- 239000004480 active ingredient Substances 0.000 claims description 6
- 210000002569 neuron Anatomy 0.000 claims description 6
- 210000000601 blood cell Anatomy 0.000 claims description 5
- 238000001035 drying Methods 0.000 claims description 5
- 229920002307 Dextran Polymers 0.000 claims description 4
- SXRSQZLOMIGNAQ-UHFFFAOYSA-N Glutaraldehyde Chemical compound O=CCCCC=O SXRSQZLOMIGNAQ-UHFFFAOYSA-N 0.000 claims description 4
- 210000001789 adipocyte Anatomy 0.000 claims description 4
- 229940072056 alginate Drugs 0.000 claims description 4
- 235000010443 alginic acid Nutrition 0.000 claims description 4
- 229920000615 alginic acid Polymers 0.000 claims description 4
- 210000002449 bone cell Anatomy 0.000 claims description 4
- 150000001718 carbodiimides Chemical class 0.000 claims description 4
- 239000000679 carrageenan Substances 0.000 claims description 4
- 235000010418 carrageenan Nutrition 0.000 claims description 4
- 229920001525 carrageenan Polymers 0.000 claims description 4
- 229940113118 carrageenan Drugs 0.000 claims description 4
- 210000002889 endothelial cell Anatomy 0.000 claims description 4
- 150000004676 glycans Chemical class 0.000 claims description 4
- 210000004698 lymphocyte Anatomy 0.000 claims description 4
- 210000002540 macrophage Anatomy 0.000 claims description 4
- 210000000963 osteoblast Anatomy 0.000 claims description 4
- 229920001282 polysaccharide Polymers 0.000 claims description 4
- 239000005017 polysaccharide Substances 0.000 claims description 4
- KZNICNPSHKQLFF-UHFFFAOYSA-N succinimide Chemical compound O=C1CCC(=O)N1 KZNICNPSHKQLFF-UHFFFAOYSA-N 0.000 claims description 4
- UHVMMEOXYDMDKI-JKYCWFKZSA-L zinc;1-(5-cyanopyridin-2-yl)-3-[(1s,2s)-2-(6-fluoro-2-hydroxy-3-propanoylphenyl)cyclopropyl]urea;diacetate Chemical compound [Zn+2].CC([O-])=O.CC([O-])=O.CCC(=O)C1=CC=C(F)C([C@H]2[C@H](C2)NC(=O)NC=2N=CC(=CC=2)C#N)=C1O UHVMMEOXYDMDKI-JKYCWFKZSA-L 0.000 claims description 4
- 241000269908 Platichthys flesus Species 0.000 claims description 3
- 238000007605 air drying Methods 0.000 claims description 3
- 241001233037 catfish Species 0.000 claims description 3
- 230000011712 cell development Effects 0.000 claims description 3
- 150000001875 compounds Chemical class 0.000 claims description 3
- 239000000835 fiber Substances 0.000 claims description 3
- 210000001821 langerhans cell Anatomy 0.000 claims description 3
- 102000019034 Chemokines Human genes 0.000 claims description 2
- 108010012236 Chemokines Proteins 0.000 claims description 2
- 102000000503 Collagen Type II Human genes 0.000 claims description 2
- 108010041390 Collagen Type II Proteins 0.000 claims description 2
- 102000001187 Collagen Type III Human genes 0.000 claims description 2
- 108010069502 Collagen Type III Proteins 0.000 claims description 2
- 102000004127 Cytokines Human genes 0.000 claims description 2
- 108090000695 Cytokines Proteins 0.000 claims description 2
- 230000032683 aging Effects 0.000 claims description 2
- 150000001299 aldehydes Chemical class 0.000 claims description 2
- 238000001574 biopsy Methods 0.000 claims description 2
- 238000010382 chemical cross-linking Methods 0.000 claims description 2
- 238000000151 deposition Methods 0.000 claims description 2
- 239000003102 growth factor Substances 0.000 claims description 2
- 230000001737 promoting effect Effects 0.000 claims description 2
- 230000009759 skin aging Effects 0.000 claims description 2
- 229960002317 succinimide Drugs 0.000 claims description 2
- SORGEQQSQGNZFI-UHFFFAOYSA-N [azido(phenoxy)phosphoryl]oxybenzene Chemical compound C=1C=CC=CC=1OP(=O)(N=[N+]=[N-])OC1=CC=CC=C1 SORGEQQSQGNZFI-UHFFFAOYSA-N 0.000 claims 1
- 239000011159 matrix material Substances 0.000 description 61
- 239000010410 layer Substances 0.000 description 37
- 239000000047 product Substances 0.000 description 31
- 210000004379 membrane Anatomy 0.000 description 29
- 241000282414 Homo sapiens Species 0.000 description 26
- 239000000499 gel Substances 0.000 description 25
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 24
- 239000010408 film Substances 0.000 description 24
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 17
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 15
- 239000000243 solution Substances 0.000 description 14
- 239000000463 material Substances 0.000 description 13
- CIWBSHSKHKDKBQ-JLAZNSOCSA-N Ascorbic acid Chemical compound OC[C@H](O)[C@H]1OC(=O)C(O)=C1O CIWBSHSKHKDKBQ-JLAZNSOCSA-N 0.000 description 10
- 210000004207 dermis Anatomy 0.000 description 10
- 230000003833 cell viability Effects 0.000 description 9
- 230000000694 effects Effects 0.000 description 8
- 238000011534 incubation Methods 0.000 description 8
- 239000006144 Dulbecco’s modified Eagle's medium Substances 0.000 description 7
- 239000008367 deionised water Substances 0.000 description 7
- 229910021641 deionized water Inorganic materials 0.000 description 7
- 230000012010 growth Effects 0.000 description 7
- 239000001963 growth medium Substances 0.000 description 7
- 238000010899 nucleation Methods 0.000 description 7
- LMDZBCPBFSXMTL-UHFFFAOYSA-N 1-ethyl-3-(3-dimethylaminopropyl)carbodiimide Chemical compound CCN=C=NCCCN(C)C LMDZBCPBFSXMTL-UHFFFAOYSA-N 0.000 description 6
- BTBUEUYNUDRHOZ-UHFFFAOYSA-N Borate Chemical compound [O-]B([O-])[O-] BTBUEUYNUDRHOZ-UHFFFAOYSA-N 0.000 description 6
- 108091003079 Bovine Serum Albumin Proteins 0.000 description 6
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 6
- NQTADLQHYWFPDB-UHFFFAOYSA-N N-Hydroxysuccinimide Chemical compound ON1C(=O)CCC1=O NQTADLQHYWFPDB-UHFFFAOYSA-N 0.000 description 6
- 230000003367 anti-collagen effect Effects 0.000 description 6
- 239000000872 buffer Substances 0.000 description 6
- 239000012894 fetal calf serum Substances 0.000 description 6
- 239000002609 medium Substances 0.000 description 6
- 230000003287 optical effect Effects 0.000 description 6
- 230000035755 proliferation Effects 0.000 description 6
- APKFDSVGJQXUKY-KKGHZKTASA-N Amphotericin-B Natural products O[C@H]1[C@@H](N)[C@H](O)[C@@H](C)O[C@H]1O[C@H]1C=CC=CC=CC=CC=CC=CC=C[C@H](C)[C@@H](O)[C@@H](C)[C@H](C)OC(=O)C[C@H](O)C[C@H](O)CC[C@@H](O)[C@H](O)C[C@H](O)C[C@](O)(C[C@H](O)[C@H]2C(O)=O)O[C@H]2C1 APKFDSVGJQXUKY-KKGHZKTASA-N 0.000 description 5
- ZZZCUOFIHGPKAK-UHFFFAOYSA-N D-erythro-ascorbic acid Natural products OCC1OC(=O)C(O)=C1O ZZZCUOFIHGPKAK-UHFFFAOYSA-N 0.000 description 5
- 229930182555 Penicillin Natural products 0.000 description 5
- JGSARLDLIJGVTE-MBNYWOFBSA-N Penicillin G Chemical compound N([C@H]1[C@H]2SC([C@@H](N2C1=O)C(O)=O)(C)C)C(=O)CC1=CC=CC=C1 JGSARLDLIJGVTE-MBNYWOFBSA-N 0.000 description 5
- 229930003268 Vitamin C Natural products 0.000 description 5
- APKFDSVGJQXUKY-INPOYWNPSA-N amphotericin B Chemical compound O[C@H]1[C@@H](N)[C@H](O)[C@@H](C)O[C@H]1O[C@H]1/C=C/C=C/C=C/C=C/C=C/C=C/C=C/[C@H](C)[C@@H](O)[C@@H](C)[C@H](C)OC(=O)C[C@H](O)C[C@H](O)CC[C@@H](O)[C@H](O)C[C@H](O)C[C@](O)(C[C@H](O)[C@H]2C(O)=O)O[C@H]2C1 APKFDSVGJQXUKY-INPOYWNPSA-N 0.000 description 5
- 229960003942 amphotericin b Drugs 0.000 description 5
- 229940096422 collagen type i Drugs 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 5
- 229940049954 penicillin Drugs 0.000 description 5
- 235000019154 vitamin C Nutrition 0.000 description 5
- 239000011718 vitamin C Substances 0.000 description 5
- 230000008901 benefit Effects 0.000 description 4
- 210000000845 cartilage Anatomy 0.000 description 4
- 239000010432 diamond Substances 0.000 description 4
- 238000007710 freezing Methods 0.000 description 4
- 230000008014 freezing Effects 0.000 description 4
- JYGXADMDTFJGBT-VWUMJDOOSA-N hydrocortisone Chemical compound O=C1CC[C@]2(C)[C@H]3[C@@H](O)C[C@](C)([C@@](CC4)(O)C(=O)CO)[C@@H]4[C@@H]3CCC2=C1 JYGXADMDTFJGBT-VWUMJDOOSA-N 0.000 description 4
- 238000012744 immunostaining Methods 0.000 description 4
- NOESYZHRGYRDHS-UHFFFAOYSA-N insulin Chemical compound N1C(=O)C(NC(=O)C(CCC(N)=O)NC(=O)C(CCC(O)=O)NC(=O)C(C(C)C)NC(=O)C(NC(=O)CN)C(C)CC)CSSCC(C(NC(CO)C(=O)NC(CC(C)C)C(=O)NC(CC=2C=CC(O)=CC=2)C(=O)NC(CCC(N)=O)C(=O)NC(CC(C)C)C(=O)NC(CCC(O)=O)C(=O)NC(CC(N)=O)C(=O)NC(CC=2C=CC(O)=CC=2)C(=O)NC(CSSCC(NC(=O)C(C(C)C)NC(=O)C(CC(C)C)NC(=O)C(CC=2C=CC(O)=CC=2)NC(=O)C(CC(C)C)NC(=O)C(C)NC(=O)C(CCC(O)=O)NC(=O)C(C(C)C)NC(=O)C(CC(C)C)NC(=O)C(CC=2NC=NC=2)NC(=O)C(CO)NC(=O)CNC2=O)C(=O)NCC(=O)NC(CCC(O)=O)C(=O)NC(CCCNC(N)=N)C(=O)NCC(=O)NC(CC=3C=CC=CC=3)C(=O)NC(CC=3C=CC=CC=3)C(=O)NC(CC=3C=CC(O)=CC=3)C(=O)NC(C(C)O)C(=O)N3C(CCC3)C(=O)NC(CCCCN)C(=O)NC(C)C(O)=O)C(=O)NC(CC(N)=O)C(O)=O)=O)NC(=O)C(C(C)CC)NC(=O)C(CO)NC(=O)C(C(C)O)NC(=O)C1CSSCC2NC(=O)C(CC(C)C)NC(=O)C(NC(=O)C(CCC(N)=O)NC(=O)C(CC(N)=O)NC(=O)C(NC(=O)C(N)CC=1C=CC=CC=1)C(C)C)CC1=CN=CN1 NOESYZHRGYRDHS-UHFFFAOYSA-N 0.000 description 4
- 238000005259 measurement Methods 0.000 description 4
- 238000001243 protein synthesis Methods 0.000 description 4
- UCSJYZPVAKXKNQ-HZYVHMACSA-N streptomycin Chemical compound CN[C@H]1[C@H](O)[C@@H](O)[C@H](CO)O[C@H]1O[C@@H]1[C@](C=O)(O)[C@H](C)O[C@H]1O[C@@H]1[C@@H](NC(N)=N)[C@H](O)[C@@H](NC(N)=N)[C@H](O)[C@H]1O UCSJYZPVAKXKNQ-HZYVHMACSA-N 0.000 description 4
- 230000014616 translation Effects 0.000 description 4
- IAZDPXIOMUYVGZ-UHFFFAOYSA-N Dimethylsulphoxide Chemical compound CS(C)=O IAZDPXIOMUYVGZ-UHFFFAOYSA-N 0.000 description 3
- 102000009024 Epidermal Growth Factor Human genes 0.000 description 3
- 101800003838 Epidermal growth factor Proteins 0.000 description 3
- 102000010834 Extracellular Matrix Proteins Human genes 0.000 description 3
- 108010037362 Extracellular Matrix Proteins Proteins 0.000 description 3
- 108010010803 Gelatin Proteins 0.000 description 3
- 229930182566 Gentamicin Natural products 0.000 description 3
- CEAZRRDELHUEMR-URQXQFDESA-N Gentamicin Chemical compound O1[C@H](C(C)NC)CC[C@@H](N)[C@H]1O[C@H]1[C@H](O)[C@@H](O[C@@H]2[C@@H]([C@@H](NC)[C@@](C)(O)CO2)O)[C@H](N)C[C@@H]1N CEAZRRDELHUEMR-URQXQFDESA-N 0.000 description 3
- GXCLVBGFBYZDAG-UHFFFAOYSA-N N-[2-(1H-indol-3-yl)ethyl]-N-methylprop-2-en-1-amine Chemical compound CN(CCC1=CNC2=C1C=CC=C2)CC=C GXCLVBGFBYZDAG-UHFFFAOYSA-N 0.000 description 3
- 229930040373 Paraformaldehyde Natural products 0.000 description 3
- 230000004888 barrier function Effects 0.000 description 3
- 210000000988 bone and bone Anatomy 0.000 description 3
- 230000019522 cellular metabolic process Effects 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 239000002537 cosmetic Substances 0.000 description 3
- 229940116977 epidermal growth factor Drugs 0.000 description 3
- 210000002744 extracellular matrix Anatomy 0.000 description 3
- 230000002349 favourable effect Effects 0.000 description 3
- 239000008273 gelatin Substances 0.000 description 3
- 229920000159 gelatin Polymers 0.000 description 3
- 235000019322 gelatine Nutrition 0.000 description 3
- 235000011852 gelatine desserts Nutrition 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 210000005260 human cell Anatomy 0.000 description 3
- 229920002866 paraformaldehyde Polymers 0.000 description 3
- 230000008929 regeneration Effects 0.000 description 3
- 238000011069 regeneration method Methods 0.000 description 3
- 238000010186 staining Methods 0.000 description 3
- 239000002344 surface layer Substances 0.000 description 3
- VBEQCZHXXJYVRD-GACYYNSASA-N uroanthelone Chemical compound C([C@@H](C(=O)N[C@H](C(=O)N[C@@H](CS)C(=O)N[C@@H](CC(N)=O)C(=O)N[C@@H](CS)C(=O)N[C@H](C(=O)N[C@@H]([C@@H](C)CC)C(=O)NCC(=O)N[C@@H](CC=1C=CC(O)=CC=1)C(=O)N[C@@H](CO)C(=O)NCC(=O)N[C@@H](CC(O)=O)C(=O)N[C@@H](CCCNC(N)=N)C(=O)N[C@@H](CS)C(=O)N[C@@H](CCC(N)=O)C(=O)N[C@@H]([C@@H](C)O)C(=O)N[C@@H](CCCNC(N)=N)C(=O)N[C@@H](CC(O)=O)C(=O)N[C@@H](CC(C)C)C(=O)N[C@@H](CCCNC(N)=N)C(=O)N[C@@H](CC=1C2=CC=CC=C2NC=1)C(=O)N[C@@H](CC=1C2=CC=CC=C2NC=1)C(=O)N[C@@H](CCC(O)=O)C(=O)N[C@@H](CC(C)C)C(=O)N[C@@H](CCCNC(N)=N)C(O)=O)C(C)C)[C@@H](C)O)NC(=O)[C@H](CO)NC(=O)[C@H](CC(O)=O)NC(=O)[C@H](CC(C)C)NC(=O)[C@H](CO)NC(=O)[C@H](CCC(O)=O)NC(=O)[C@@H](NC(=O)[C@H](CC=1NC=NC=1)NC(=O)[C@H](CCSC)NC(=O)[C@H](CS)NC(=O)[C@@H](NC(=O)CNC(=O)CNC(=O)[C@H](CC(N)=O)NC(=O)[C@H](CC(C)C)NC(=O)[C@H](CS)NC(=O)[C@H](CC=1C=CC(O)=CC=1)NC(=O)CNC(=O)[C@H](CC(O)=O)NC(=O)[C@H](CC=1C=CC(O)=CC=1)NC(=O)[C@H](CO)NC(=O)[C@H](CO)NC(=O)[C@H]1N(CCC1)C(=O)[C@H](CS)NC(=O)CNC(=O)[C@H]1N(CCC1)C(=O)[C@H](CC=1C=CC(O)=CC=1)NC(=O)[C@H](CO)NC(=O)[C@@H](N)CC(N)=O)C(C)C)[C@@H](C)CC)C1=CC=C(O)C=C1 VBEQCZHXXJYVRD-GACYYNSASA-N 0.000 description 3
- FWBHETKCLVMNFS-UHFFFAOYSA-N 4',6-Diamino-2-phenylindol Chemical compound C1=CC(C(=N)N)=CC=C1C1=CC2=CC=C(C(N)=N)C=C2N1 FWBHETKCLVMNFS-UHFFFAOYSA-N 0.000 description 2
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonia chloride Chemical compound [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 description 2
- 102000012422 Collagen Type I Human genes 0.000 description 2
- 108010022452 Collagen Type I Proteins 0.000 description 2
- 238000002965 ELISA Methods 0.000 description 2
- 102000004877 Insulin Human genes 0.000 description 2
- 108090001061 Insulin Proteins 0.000 description 2
- ZDXPYRJPNDTMRX-VKHMYHEASA-N L-glutamine Chemical compound OC(=O)[C@@H](N)CCC(N)=O ZDXPYRJPNDTMRX-VKHMYHEASA-N 0.000 description 2
- 229930182816 L-glutamine Natural products 0.000 description 2
- 241001465754 Metazoa Species 0.000 description 2
- 229910019142 PO4 Inorganic materials 0.000 description 2
- 102000057297 Pepsin A Human genes 0.000 description 2
- 108090000284 Pepsin A Proteins 0.000 description 2
- 108010045569 atelocollagen Proteins 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 229910021538 borax Inorganic materials 0.000 description 2
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 description 2
- 239000004327 boric acid Substances 0.000 description 2
- 239000007853 buffer solution Substances 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 238000005119 centrifugation Methods 0.000 description 2
- 229940094517 chondroitin 4-sulfate Drugs 0.000 description 2
- KXKPYJOVDUMHGS-OSRGNVMNSA-N chondroitin sulfate Chemical compound CC(=O)N[C@H]1[C@H](O)O[C@H](OS(O)(=O)=O)[C@H](O)[C@@H]1O[C@H]1[C@H](O)[C@@H](O)[C@H](O)[C@@H](C(O)=O)O1 KXKPYJOVDUMHGS-OSRGNVMNSA-N 0.000 description 2
- 210000004087 cornea Anatomy 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000010790 dilution Methods 0.000 description 2
- 239000012895 dilution Substances 0.000 description 2
- BNIILDVGGAEEIG-UHFFFAOYSA-L disodium hydrogen phosphate Chemical compound [Na+].[Na+].OP([O-])([O-])=O BNIILDVGGAEEIG-UHFFFAOYSA-L 0.000 description 2
- UQGFMSUEHSUPRD-UHFFFAOYSA-N disodium;3,7-dioxido-2,4,6,8,9-pentaoxa-1,3,5,7-tetraborabicyclo[3.3.1]nonane Chemical compound [Na+].[Na+].O1B([O-])OB2OB([O-])OB1O2 UQGFMSUEHSUPRD-UHFFFAOYSA-N 0.000 description 2
- 238000004090 dissolution Methods 0.000 description 2
- 230000003203 everyday effect Effects 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 239000000284 extract Substances 0.000 description 2
- 238000001415 gene therapy Methods 0.000 description 2
- 229960000890 hydrocortisone Drugs 0.000 description 2
- 229940125396 insulin Drugs 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000037306 mature skin Effects 0.000 description 2
- 229910000402 monopotassium phosphate Inorganic materials 0.000 description 2
- 235000019796 monopotassium phosphate Nutrition 0.000 description 2
- VMGAPWLDMVPYIA-HIDZBRGKSA-N n'-amino-n-iminomethanimidamide Chemical compound N\N=C\N=N VMGAPWLDMVPYIA-HIDZBRGKSA-N 0.000 description 2
- 230000035515 penetration Effects 0.000 description 2
- 229940111202 pepsin Drugs 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 2
- 239000010452 phosphate Substances 0.000 description 2
- 239000008363 phosphate buffer Substances 0.000 description 2
- PJNZPQUBCPKICU-UHFFFAOYSA-N phosphoric acid;potassium Chemical compound [K].OP(O)(O)=O PJNZPQUBCPKICU-UHFFFAOYSA-N 0.000 description 2
- BOLDJAUMGUJJKM-LSDHHAIUSA-N renifolin D Natural products CC(=C)[C@@H]1Cc2c(O)c(O)ccc2[C@H]1CC(=O)c3ccc(O)cc3O BOLDJAUMGUJJKM-LSDHHAIUSA-N 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 239000004328 sodium tetraborate Substances 0.000 description 2
- 235000010339 sodium tetraborate Nutrition 0.000 description 2
- 210000004872 soft tissue Anatomy 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 229960005322 streptomycin Drugs 0.000 description 2
- 230000004083 survival effect Effects 0.000 description 2
- 238000003786 synthesis reaction Methods 0.000 description 2
- 210000002435 tendon Anatomy 0.000 description 2
- 231100000331 toxic Toxicity 0.000 description 2
- 230000002588 toxic effect Effects 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 238000004627 transmission electron microscopy Methods 0.000 description 2
- BJNXJVMRERBPJY-UHFFFAOYSA-N 2-(3,5-diphenyl-2h-tetrazol-2-ium-1-yl)-4,5-dimethyl-1,3-thiazole;bromide Chemical compound [Br-].S1C(C)=C(C)N=C1N1C(C=2C=CC=CC=2)=[NH+]N(C=2C=CC=CC=2)N1 BJNXJVMRERBPJY-UHFFFAOYSA-N 0.000 description 1
- 229930024421 Adenine Natural products 0.000 description 1
- GFFGJBXGBJISGV-UHFFFAOYSA-N Adenine Chemical compound NC1=NC=NC2=C1N=CN2 GFFGJBXGBJISGV-UHFFFAOYSA-N 0.000 description 1
- 241000894006 Bacteria Species 0.000 description 1
- 102000009016 Cholera Toxin Human genes 0.000 description 1
- 108010049048 Cholera Toxin Proteins 0.000 description 1
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- 241000283973 Oryctolagus cuniculus Species 0.000 description 1
- 102000029797 Prion Human genes 0.000 description 1
- 108091000054 Prion Proteins 0.000 description 1
- 102000019259 Succinate Dehydrogenase Human genes 0.000 description 1
- 108010012901 Succinate Dehydrogenase Proteins 0.000 description 1
- 241000282887 Suidae Species 0.000 description 1
- ZMZDMBWJUHKJPS-UHFFFAOYSA-M Thiocyanate anion Chemical compound [S-]C#N ZMZDMBWJUHKJPS-UHFFFAOYSA-M 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- 102000004338 Transferrin Human genes 0.000 description 1
- 108090000901 Transferrin Proteins 0.000 description 1
- 241000700605 Viruses Species 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 229960000643 adenine Drugs 0.000 description 1
- 235000019270 ammonium chloride Nutrition 0.000 description 1
- 239000000427 antigen Substances 0.000 description 1
- 102000036639 antigens Human genes 0.000 description 1
- 108091007433 antigens Proteins 0.000 description 1
- 239000000823 artificial membrane Substances 0.000 description 1
- 238000003556 assay Methods 0.000 description 1
- 210000002469 basement membrane Anatomy 0.000 description 1
- 230000004071 biological effect Effects 0.000 description 1
- 244000309466 calf Species 0.000 description 1
- 210000003321 cartilage cell Anatomy 0.000 description 1
- 230000021164 cell adhesion Effects 0.000 description 1
- 230000004663 cell proliferation Effects 0.000 description 1
- 238000013043 cell viability test Methods 0.000 description 1
- 238000003501 co-culture Methods 0.000 description 1
- 210000002808 connective tissue Anatomy 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 239000003431 cross linking reagent Substances 0.000 description 1
- 230000037029 cross reaction Effects 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000035617 depilation Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 230000029087 digestion Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000002500 effect on skin Effects 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 230000007515 enzymatic degradation Effects 0.000 description 1
- 230000006862 enzymatic digestion Effects 0.000 description 1
- 210000002615 epidermis Anatomy 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- GNBHRKFJIUUOQI-UHFFFAOYSA-N fluorescein Chemical compound O1C(=O)C2=CC=CC=C2C21C1=CC=C(O)C=C1OC1=CC(O)=CC=C21 GNBHRKFJIUUOQI-UHFFFAOYSA-N 0.000 description 1
- MHMNJMPURVTYEJ-UHFFFAOYSA-N fluorescein-5-isothiocyanate Chemical compound O1C(=O)C2=CC(N=C=S)=CC=C2C21C1=CC=C(O)C=C1OC1=CC(O)=CC=C21 MHMNJMPURVTYEJ-UHFFFAOYSA-N 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- -1 glutaraldehyde Chemical class 0.000 description 1
- 210000003035 hyaline cartilage Anatomy 0.000 description 1
- ZMZDMBWJUHKJPS-UHFFFAOYSA-N hydrogen thiocyanate Natural products SC#N ZMZDMBWJUHKJPS-UHFFFAOYSA-N 0.000 description 1
- 239000007943 implant Substances 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 239000003550 marker Substances 0.000 description 1
- 230000035800 maturation Effects 0.000 description 1
- 230000002503 metabolic effect Effects 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 231100000956 nontoxicity Toxicity 0.000 description 1
- 238000000424 optical density measurement Methods 0.000 description 1
- 229910000489 osmium tetroxide Inorganic materials 0.000 description 1
- 239000012285 osmium tetroxide Substances 0.000 description 1
- 239000012188 paraffin wax Substances 0.000 description 1
- 238000003359 percent control normalization Methods 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 230000035790 physiological processes and functions Effects 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000002980 postoperative effect Effects 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 102000004169 proteins and genes Human genes 0.000 description 1
- 238000011002 quantification Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- HRZFUMHJMZEROT-UHFFFAOYSA-L sodium disulfite Chemical compound [Na+].[Na+].[O-]S(=O)S([O-])(=O)=O HRZFUMHJMZEROT-UHFFFAOYSA-L 0.000 description 1
- 229940001584 sodium metabisulfite Drugs 0.000 description 1
- 235000010262 sodium metabisulphite Nutrition 0.000 description 1
- 229910052979 sodium sulfide Inorganic materials 0.000 description 1
- GRVFOGOEDUUMBP-UHFFFAOYSA-N sodium sulfide (anhydrous) Chemical compound [Na+].[Na+].[S-2] GRVFOGOEDUUMBP-UHFFFAOYSA-N 0.000 description 1
- 230000004936 stimulating effect Effects 0.000 description 1
- 238000007920 subcutaneous administration Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 239000006228 supernatant Substances 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 125000003831 tetrazolyl group Chemical group 0.000 description 1
- 238000009210 therapy by ultrasound Methods 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 239000012581 transferrin Substances 0.000 description 1
- 238000003026 viability measurement method Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12N—MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
- C12N5/00—Undifferentiated human, animal or plant cells, e.g. cell lines; Tissues; Cultivation or maintenance thereof; Culture media therefor
- C12N5/06—Animal cells or tissues; Human cells or tissues
- C12N5/0697—Artificial constructs associating cells of different lineages, e.g. tissue equivalents
- C12N5/0698—Skin equivalents
-
- 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
-
- 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
- A61L27/36—Materials for grafts or prostheses or for coating grafts or prostheses containing ingredients of undetermined constitution or reaction products thereof, e.g. transplant tissue, natural bone, extracellular matrix
- A61L27/38—Materials for grafts or prostheses or for coating grafts or prostheses containing ingredients of undetermined constitution or reaction products thereof, e.g. transplant tissue, natural bone, extracellular matrix containing added animal cells
- A61L27/3804—Materials for grafts or prostheses or for coating grafts or prostheses containing ingredients of undetermined constitution or reaction products thereof, e.g. transplant tissue, natural bone, extracellular matrix containing added animal cells characterised by specific cells or progenitors thereof, e.g. fibroblasts, connective tissue cells, kidney cells
-
- 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
- A61L27/40—Composite materials, i.e. containing one material dispersed in a matrix of the same or different material
-
- 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
- A61L27/60—Materials for use in artificial skin
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12N—MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
- C12N5/00—Undifferentiated human, animal or plant cells, e.g. cell lines; Tissues; Cultivation or maintenance thereof; Culture media therefor
- C12N5/0068—General culture methods using substrates
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12N—MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
- C12N2502/00—Coculture with; Conditioned medium produced by
- C12N2502/09—Coculture with; Conditioned medium produced by epidermal cells, skin cells, oral mucosa cells
- C12N2502/094—Coculture with; Conditioned medium produced by epidermal cells, skin cells, oral mucosa cells keratinocytes
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12N—MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
- C12N2502/00—Coculture with; Conditioned medium produced by
- C12N2502/13—Coculture with; Conditioned medium produced by connective tissue cells; generic mesenchyme cells, e.g. so-called "embryonic fibroblasts"
- C12N2502/1323—Adult fibroblasts
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12N—MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
- C12N2503/00—Use of cells in diagnostics
- C12N2503/04—Screening or testing on artificial tissues
- C12N2503/06—Screening or testing on artificial skin
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12N—MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
- C12N2533/00—Supports or coatings for cell culture, characterised by material
- C12N2533/50—Proteins
- C12N2533/54—Collagen; Gelatin
Definitions
- collagen has proven to be an irreplaceable substrate for the production of artificial tissues containing living cells.
- biomaterials obtained are increasingly used in the pharmaceutical field and their future seems very promising for the preparation of injured connective tissues or for gene therapy by allowing the introduction and survival of modified cells in a living organism. 10
- cosmetic and dermopharmaceutical industries are making increasing use of reconstructed skin, all the more so since in these disciplines, animal tests are used less and less .
- Document WO 99/19005 discloses a multilayer membrane comprising a predominantly collagen II matrix layer having a sponge texture covered on at least one side and preferably on both sides, with at least one barrier layer having a closed texture,
- the barrier layer is formed by a natural animal membrane (see page 7, lines 23 to 32 and page 8, lines 10 to 30).
- this barrier layer is to prevent the penetration and therefore the growth of native tissue cells because this membrane is dedicated to
- cartilage cells or chondrocytes have a much slower multiplication or regeneration rate than the regeneration rate of soft tissue cells such as fibroblasts and, therefore, it is necessary to isolate them for allow them to grow by avoiding being invaded by fast-growing soft tissue cells.
- This document leads to this solution by using a cell-tight barrier layer which protects the growth of collagen II cells which promote the growth of chondrocytes (see page 2, lines 15 to 20).
- a bilayer material is initially prepared, each layer of which is capable of allowing the growth of human living cells, which constitutes an unobvious and totally unexpected solution in relation to the state of the technical.
- Document WO 96/08277 relates to the use of a collagen membrane as a peritoneal regeneration prosthesis, constituting an earlier invention of the same applicant.
- a preferred embodiment is a mixed membrane comprising a collagen sponge on which a collagen gel has been bonded, the membrane being obtained by drying the collagen gel in a non-toxic gaseous fluid, see in particular the Example II, pages 12 and 13 of this PCT application.
- Example II it appears that the sponge obtained is compressed for 15 seconds under a pressure of 150 bars and that the mixed membrane is formed by pouring a 1% collagen gel onto this compressed sponge, this gel being then dried in the open air.
- the mixed membrane obtained is in fact produced from two essentially compact layers, which constitutes a structure different from that which is the subject of the present invention. Furthermore, in the case of the present invention, it has been unexpectedly discovered that the claimed bilayer structure is compatible with a seeding of at least one layer with living human cells, allowing their conservation, as well as their multiplication.
- document FR 2 679 778 constitutes another still earlier invention by the same similar applicant.
- Document EP 0 686 402 also constitutes an earlier document by the same applicant relating to a postoperative anti-adhesion collagen membrane comprising two layers, a collagen-based support completely covered with a layer of gelatin, the mixture being in the lyophilized state.
- the gelatin layer has the critical aim of achieving a membrane bonding effect avoiding adhesions and the gelatin has rapid resorption by dissolution at 37 ° C. in the presence of cells.
- This document is different from the present invention in that it uses a dermis obtained by the elimination of a skin, covered with a mixture of human keratinocytes previously isolated by a conventional method, mixed with human melanocytes also previously isolated by a method. known and which is then subjected to a co-culture.
- This document does not provide for a compact layer as provided in the context of the present invention and which can be seeded with human living cells, critically combined with a porous sub-layer which is clearly different from a de-epidermalized dermis.
- the document WO 91/16010 describes equivalents of composite living skins consisting first of all in buying commercially a membrane of bovine collagen sponge which is inoculated with fibroblast cells (see page 8, third and fourth paragraphs).
- the sponge After incubation, the sponge is inverted and the upper surface is laminated with non-porous collagen which can be treated with pepsin (see page 8 last paragraph) which is generally bovine collagen. It is stated that the purpose of treatment with pepsin is to remove the telopeptides (page 9, first four lines).
- the pH of the collagen solution is adjusted to a neutral pH, which allows precipitation.
- the collagen forms a thin film layer on the sponge and the whole is cultured at 37 ° C for 60 minutes (page 9, last sentence of the first paragraph). Then, cultured keratinocytes are inoculated on the laminated layer and a new culture is carried out again at pH 7.2 and 35 ° C for 10 days.
- the bilayer structure is formed initially and is made up critically of a collagen sponge coated with a compact layer, this compact layer providing unexpected technical effects such as resulting from the following description.
- the main difficulties to overcome for the production of supports intended for obtaining living artificial tissues are as follows: good mechanical resistance, low sensitivity to temperatures around 37 ° C, biological properties favorable to cell development and metabolism, low susceptibility to vis-à-vis the enzymatic degradation and, finally, for certain applications and in particular reconstructed skin, preferable presence of a bilayer structure in which one of the layers is as compact as possible and the other porous.
- the object of the present invention is to solve these problems which remain unresolved both technically and industrially.
- the present invention makes it possible to solve all of these technical problems in a particularly simple, inexpensive manner, usable on an industrial scale and in particular on a cosmetic, dermopharmaceutical or pharmaceutical industrial scale.
- the present invention provides a new composite product forming a collagen support comprising at least one porous collagen layer coated on at least one face with an essentially compact collagen membrane produced either by a collagen film prepared by drying, preferably at air or in a gaseous fluid, a collagen gel, or by a very strongly compressed collagen sponge.
- the compression of the compressed collagen sponge is carried out at a pressure at least equal to approximately 50 bars, equivalent to approximately 50.10 5 Pascals (Pa), preferably between 50 bars (50.10 5 Pa) and 200 bars (200.10 5 Pa), possibly this compression taking place at a temperature between 20 and 80 degrees C °, even better between 40 C ° and 60 C °.
- a pressure at least equal to approximately 50 bars, equivalent to approximately 50.10 5 Pascals (Pa), preferably between 50 bars (50.10 5 Pa) and 200 bars (200.10 5 Pa), possibly this compression taking place at a temperature between 20 and 80 degrees C °, even better between 40 C ° and 60 C °.
- this composite product is characterized in that the abovementioned collagen product is chosen from collagen and a mixture of collagen with a polysaccharide, in particular a glycosaminoglycan, chitosan, and chitosan derivatives, cellulose and derivatives cellulose, dextran and its derivatives, an alginate, an alginate derivative, a carrageenan.
- a polysaccharide in particular a glycosaminoglycan, chitosan, and chitosan derivatives, cellulose and derivatives cellulose, dextran and its derivatives, an alginate, an alginate derivative, a carrageenan.
- this composite product is characterized in that at least one of the two layers, respectively the porous layer and the essentially compact membrane, comprises living cells, normal or genetically modified, or malignant in particular from young or old subjects.
- the living cells are chosen from the group consisting of fibroblasts, keratinocytes, melanocytes, langerhan cells of blood origin, endothelial cells of blood origin, blood cells, in particular macrophages or lymphocytes, adipocytes, sebocytes , bone cells, chondrocytes, osteoblasts, Merkel cells of blood origin, normal or genetically modified or malignant.
- the composite product is characterized in that it contains normal or genetically modified or malignant fibroblasts in the porous layer and normal or genetically modified or malignant living cells, on the surface of the compact membrane in particular chosen from keratinocytes, melanocytes, Merkel cells of blood origin, langerhan cells of blood origin, sebocytes, cells of blood origin, nerve cells.
- the essentially compact membrane is prepared prior to combination with the porous layer, preferably comprising a collagen sponge, in particular by preparing the membrane and depositing it on a gel collagen before the whole is frozen and lyophilized to obtain said composite product.
- the collagen sponge and / or the collagen film and / or the collagen membrane comprises collagen of mammalian origin, in particular of bovine origin.
- the collagen sponge and / or the collagen film and / or collagen membrane comprises collagen of marine origin, preferably derived from fish skins of the family.
- teleosts more particularly fish with areas of depigmented skin, even more particularly flat fish, even better those which are sinned industrially, such as for example sole, flounder, turbo, catfish whose non-ventral skins pigments can be easily separated by skinning.
- the fish skin preferred as a source of collagen extraction usable according to the present invention is that of sole.
- such a collagen sponge and / or a collagen film and / or a collagen membrane obtained from collagen of marine origin, preferably from the family of teleosts may be biocompatible with human living cells used for the manufacture of reconstructed skins and that these living human cells can not only remain alive but also be able to multiply.
- the collagen of mammalian origin, in particular of bovine origin, or preferably of marine origin, in particular of fish skins of the teleost family can be crosslinked either chemically, or by physical crosslinking as will be described later in the context of the manufacturing process. It is particularly unexpected that such crosslinking can be used in the context of the production of a biomaterial biocompatible with human cells which are used in the rest of the process for the manufacture of reconstructed skins.
- biocompatible is meant in the context of the present invention that the biomaterial is not toxic towards human living cells and that it also allows their growth or multiplication. It should be noted that the crosslinking generally has the effect of making the material non-biocompatible, therefore toxic to living cells and therefore cannot allow their growth.
- the composite product according to the invention is characterized in that at least one of the two layers is produced from a collagen gel containing a mixture of soluble collagen and insoluble collagen, for example in the form of fibers.
- the collagen can be type I and / or type III collagen.
- the present invention also covers a process for manufacturing a composite product comprising at least one porous collagen layer coated on at least one face with an essentially compact collagen membrane, characterized in that: a) everything is prepared first the essentially compact collagen membrane, either by drying a first collagen gel, preferably by air drying or using a gaseous fluid, or by compression of a collagen sponge obtained by freezing- lyophilization of a collagen gel; b) a second collagen gel is prepared separately; c) either the essentially compact membrane is deposited on the second collagen gel, or the second collagen gel is poured onto the essentially compact membrane; and d) finally freezing-lyophilization of the assembly to obtain said composite product.
- the compression step takes place at a temperature between 20 to 80 ° C, more preferably between 40 ° C and 60 ° C.
- this process is characterized in that one uses for the preparation of the collagen sponge and / or the collagen film and / or the collagen membrane, either collagen or a mixture of collagen with a polysaccharide, in particular a glycosaminoglycan, chitosan, chitosan derivatives, cellulose and cellulose derivatives, dextran and its derivatives, an alginate, an alginate derivative, a carrageenan.
- a polysaccharide in particular a glycosaminoglycan, chitosan, chitosan derivatives, cellulose and cellulose derivatives, dextran and its derivatives, an alginate, an alginate derivative, a carrageenan.
- the method is characterized in that a crosslinking of at least one of the two layers or of both is carried out.
- the aforementioned crosslinking is a physical crosslinking, in particular a thermal dehydration hot under vacuum or DHT, or a chemical crosslinking, in particular with diphenylphosphorylazide or DPPA, with an aldehyde such as glutaraldehyde, with carbodiimide, or succinimide.
- a compound promoting cell development in particular a growth factor, in particular a cytokine, a chemokine, is added during manufacture.
- the method according to the invention is characterized in that there is provided a step of introducing living cells, normal or genetically modified, or malignant in at least one of the two layers.
- said living cells are chosen from the group consisting of fibroblasts, keratinocytes, melanocytes, langerhan cells of blood origin, endothelial cells of blood origin, blood cells, in particular macrophages or lymphocytes, chondrocytes, bone cells, in particular osteoblasts, Merkel cells of blood origin, sebocytes, adipocytes, nerve cells.
- the method is characterized in that fibroblasts are introduced into the porous layer.
- the method is characterized in that living cells are deposited on the surface of the compact membrane, in particular chosen from keratinocytes, melanocytes, Merkel cells of origin blood, langerhans cells of blood origin, sebocytes, cells of blood origin, nerve cells.
- the method is characterized in that the living cells are brought either by culture sequentially, either by concomitant culture between the different types of cells, these cells coming from culture or biopsy.
- the present invention also covers the use of the composite product forming a collagen support as previously defined, or as obtained by the process as previously defined, or as resulting from the following description made in particular in relation with the examples for which any characteristic, which appears to be new compared to any prior art, is claimed as such in its function and in its generality, for the manufacture of artificial skins intended in particular for carrying out in vitro tests potentially active substance, or to reconstruct damaged skin areas in vivo.
- artificial skins can be obtained either substantially exclusively from young cells, or substantially exclusively from old cells, in particular for studying the process of tissue aging and in particular for the skin and possibly testing the effectiveness of principles. active on this process.
- reconstructed tissue capable of overcoming the deficiencies of damaged tissue: skin, cartilage, bone, tendons, corneas;
- any characteristic, which appears new compared to any prior art, is claimed in its function and in its generality, independently of the context of the example.
- Examples 6 to 13 constitute presently preferred embodiments of the composite products according to the invention forming a collagen support.
- Example 14 relates to comparative tests demonstrating the advantage of the composite products according to the invention as collagen support for the manufacture of artificial skins intended in particular for carrying out in vitro tests of effectiveness of potentially active substance, or for reconstructing in vivo damaged skin areas.
- the temperature is given in degrees Celsius
- the pressure is atmospheric pressure
- the percentages are given by weight unless otherwise indicated.
- Examples 16 to 24 constitute examples of preparation of collagen-based support of aquatic origin usable for the preparation of reconstructed skins
- Examples 25 to 27 relate to tests in particular comparative, using collagen of aquatic origin under the prepared forms in some of Examples 16 to 24, compared to collagen of bovine origin, allowing the manufacture of artificial skins.
- FIG. 1 shows a sectional view, after marking by conventional histological staining, of a composite product according to the present invention produced from a lower porous layer of bovine collagen, surfaced on the upper face of an upper membrane essentially compact collagen produced by a collagen film prepared by air drying a collagen gel, under the conditions of Example 6,
- FIG. 2 shows a similar section obtained with a simple porous matrix prepared with the same gel bovine collagen, but not surfaced, that is to say under the conditions of Example 1, showing the presence of inclusion of keratinocytes in depth, not limited to the surface,
- FIG. 4 shows the inductor effect of a fermented malt extract commercially available under the trade mark ® Basaline, COLETICA, France on the production of laminins in mature reconstructed skin, the amount of laminins produced also being expressed as percent of control ,
- FIG. 5 shows the same compensating effect of the fermented malt extract or Basaline ®, with the ordinate the amount of laminins produced as percent of control,
- FIG. 6 shows the proliferation of normal human fibroblasts in equivalent dermis, with the time expressed in days and on the abscissa and the optical density x 1000 on the ordinate with units increasing by 100;
- the curve with the diamonds is that obtained using a porous matrix of aquatic collagen, in this case fish, as support, and the curve with squares is obtained with bovine collagen;
- FIG. 7 represents a similar proliferation curve of fibroblasts in equivalent dermis with the time expressed in days and in abscissa.
- the curve with the solid diamonds represents the fluorescence obtained in the context of test 1; the curve with the square that obtained with test 2; the curve with the empty triangles being obtained with test 3 and finally the curve with the crosses being that obtained with test 4.
- a gel is prepared from previously washed calf skins
- the total duration of depilation is 36 hours.
- the skins are then stubborn in a bath containing ammonium chloride (3%) and sodium metabisulfite (0.5%), at the rate of 400 g of skin for 50 ml of bath.
- the total duration of this bath is 2 hours and thirty minutes.
- the salts are removed by two successive washes with water (15 minutes per wash), at the rate of 200 ml of water per 100 g of tissue.
- the ground material is then kneaded for one hour in order to obtain a paste.
- the gel is obtained by continuously passing the dough through an ultrasonic treatment device of the UTL T / -6 type.
- This gel has a concentration between 0.7 and 2% in collagen, the proportion of acid-soluble collagen varying from 10 to 20%, compared to insoluble collagen.
- the collagen lyophilisate is incubated for 24 h in a solution containing 5 to 250 ⁇ l of DPPA / g of collagen contained in 100 ml of dimethyl formamide (DMF).
- the collagen is then freed from DPPA by rinsing in 100 ml of DMF.
- the DMF is then eliminated by rinsing in 100 ml of a borate buffer solution pH 8.9 (sodium tetraborate 0.04 M, boric acid 0.04 M).
- the collagen is finally incubated overnight in the same borate buffer. Finally, the borate buffer is removed by rinsing with continuous permuted water for 6 h.
- NHS N-hydroxysuccinimide
- the collagen is crosslinked for 24 to 96 h in a solution containing 0.6 to 1% of GTA at 20 ° C. After rinsing with deionized water, the collagen is again lyophilized.
- Porous matrix prepared with the native collagen of Example 1 in combination with chitosan and a glycosaminoglycan as described in the European patent of May 29, 1991 No. 296078.
- Porous matrix described in Example 1 surfaced with a collagen film
- the collagen gel whose dry matter is between 0.3 and 0.8% is dried in an oven at 30 ° C or in a hood at the rate of 0.5 g of gel / cm of tray.
- the collagen gel it is possible to add 10 to 40% glycerol.
- the collagen dried under these conditions forms a transparent film.
- Porous matrix prepared with an acid-soluble collagen gel surfaced with a collagen film
- Example 6 The process is that indicated in Example 6, the only difference being the nature of the gel cast on the film which is made of acid-soluble collagen prepared according to a technique well known to those skilled in the art.
- EXAMPLE 8 Porous matrix prepared with an atelocollagen gel or surfaced with a collagen film
- Example 6 The process is that indicated in Example 6, the only difference being the nature of the gel cast on the film which is made of atelocollagen, that is to say collagen without telopeptide prepared according to a technique well known in the art. skilled in the art.
- Porous matrix consisting of collagen associated with chitosan and a glycosaminoglycan surfaced with a collagen film.
- the process is that indicated in Example 6, but in this case, the gel cast on the collagen film consists of collagen, chitosan, a glycosaminoglycan.
- the preparation of this gel is described in Example 5.
- EXAMPLE 10 All the porous matrices surfaced with a collagen film described previously can be crosslinked according to the techniques described in Examples 2, 3 and 4.
- EXAMPLE 11 Porous collagen alone matrix described in Example 1 surfaced with a compressed collagen sponge.
- the collagen gel prepared as in Example 1 and having a dry matter of between 0.3 and 1.5% is lyophilized so as to obtain a sponge having a weight of between 0.5 and 2 g / cm 2 .
- the lyophilisate is compressed for 5 to 60 seconds, at a temperature between 20 and 60 ° C and a pressure between 50 and 200 bars (50 to 200.10 5 Pa).
- Example 1 The collagen gel described in Example 1 is deposited at a rate of 0.5 g per cm 2 in a lyophilization tray. The compressed sponge is then deposited on this gel and the whole is freeze-dried. A porous collagen sponge surfaced with a compressed collagen sponge is thus obtained. The whole is crosslinked by DHT as described in Example 1.
- Porous matrix consisting of collagen, chitosan and glycosaminoglycan as described in Example 5 and surfaced with the compressed sponge.
- the collagen, chitosan and glycosaminoglycan gel prepared according to the method of Example 5, is deposited at a rate of 0.5 g per cm in a freeze-drying tray, then the compressed sponge is deposited on this gel and the assembly is lyophilized. The lyophilisate is then crosslinked by DHT as described in Example 1.
- Reconstructed skins prepared respectively either using the porous matrix crosslinked by DPPA described in example 2, or thanks to the porous matrix, crosslinked by DPPA, of example 2, surfaced by a compressed collagen sponge of which the whole is crosslinked by the DPPA, according to Example 13, in order to make a comparison between a composite product comprising a porous collagenous layer surfaced by an essentially compact membrane according to the invention and a product comprising a porous collagenous layer alone not surfaced.
- Normal human fibroblasts are used resulting from samples taken indifferently from elderly or young subjects, which are recovered and which are developed in a conventional manner for those skilled in the art to recover them between the sixth and the tenth passage. .
- Seeding is carried out at 250,000 cells per cm 2 of porous matrix, respectively either the comparison product comprising only the porous matrix crosslinked by the DPPA of Example 2, or the composite product according to the invention comprising the porous matrix crosslinked by the DPPA of example 2, surfaced by a compressed collagen sponge, the whole of which is crosslinked by the DPPA, according to example 13.
- the culture medium is composed of DMEM / HAM F12 50/50 (v / v) added to 10% by weight of fetal calf serum, 100 IU / ml of penicillin, 25 ⁇ g / ml of gentamycin, 1 ⁇ g / ml d amphotericin B, 50 ⁇ g / ml of vitamin C.
- a culture is carried out for three weeks by changing the medium three times a week.
- Seeding is carried out at 250,000 cells per cm 2 of surface, ie of the surface of the porous matrix crosslinked with the DPPA of Example 2; either of the composite product according to the invention comprising the porous matrix crosslinked by the DPPA of example 2, surfaced by a compressed collagen sponge, the whole of which is crosslinked by the DPPA, according to example 13 and, in this case, the keratinocytes are sown on the surface of the essentially compact collagen membrane.
- the culture of these products comprising both a seeding of fibroblasts and keratinocytes takes place in a Green medium composed of: DMEM supplemented with: 30% HAM F12, 10% fetal calf serum,
- EGF Epidermal Growth factor 10 ng / ml, commercially available insulin under the brand name UMUUfNE®
- This culture is carried out for a week by changing the media every day.
- step b) After having carried out the culture of step b) for one week by changing media every day, the surface layer containing the keratinocytes emerges at the air-liquid interface, while the layer containing the fibroblasts remains immersed, followed a culture for three weeks in emersion medium composed of:
- DMEM fetal calf serum
- penicillin 100 IU / ml of penicillin
- a reconstructed skin is obtained composed of a reconstructed dermis, the fibroblasts having colonized the three-dimensional collagen matrix, covered by a multi-layered epidermis.
- the surfacing of porous matrices with an essentially compact layer to obtain a composite product according to the invention makes it possible to obtain, after three weeks of preparation of the equivalent dermis, a greater quantity of fibroblasts on the surface of the collagenic matrices before epidermization. .
- the procedure is essentially as described in example 14 concerning the cultures using the same composite product according to the present invention comprising a porous collagenous layer or matrix crosslinked by the DPPA described in example 2, surfaced by a sponge of compressed collagen, the whole of which is crosslinked by the DPPA, according to Example 13, by proceeding as follows:
- step a the porous matrices of the composite product of the invention were firstly seeded with normal human dermal fibroblasts from either pools of young cells or pools of cells mature or aged, and a culture is carried out for 21 days under the conditions described in Example 14 step a.
- epidermal sheets prepared separately from keratinocytes originating either from pools of young cells or from pools of mature cells are seeded on the surface of the essentially compact collagen membrane of the composite product.
- a culture is carried out for 14 days under the conditions described in Example 14b.
- FIG. 3 shows that the reconstructed mature skins contain approximately half as much laminins as the reconstructed young skins (PRJ) serving as a 100% control.
- COLETICA on the production of laminins in young and mature reconstructed skin
- the laminins contained in the incubation media were quantified by ELISA.
- the tension at 100% is made up of the level of laminins in Aged Reconstructed Skin or PRA.
- Figure 4 shows that the active ingredient extracted from fermented malt, or BASALINE ® , was capable of stimulating the production of laminins in mature reconstructed skins. Under the same conditions, the active extract of fermented malt or Basaline ® does not alter how significant the production of laminin in skins youth rebuilt, shown in Figure 5. It is found that the active ingredient or fermented malt extract
- BASALINE ® increases by 65% the production of laminins from mature reconstructed skin.
- this active principle does not affect the physiological processes involved in regulating the production of laminins from young reconstructed skin.
- FIG. 5 shows that the difference between the production of laminins from young reconstituted skins and from mature reconstituted skins can be reduced by 65% by the active ingredient, used to 0.5%.
- a collagen gel is prepared from ground ventral sole skins then washed with a phosphate buffer pH 7.8, the composition of which is: 0.78 g / 1 of potassium dihydrogen phosphate and 21.7 g / 1 of disodium monohydrogen phosphate.
- the washing is carried out with stirring for one hour at a rate of 5 l of buffer for 1 kg of ground material.
- the phosphate is then removed by two successive washes with deionized water, then by continuous centrifugation at 4000 rpm (Rousselet decanter), at the rate of 5 l of water per 1 kg of ground material.
- the ground product is then acidified with a 0.25 M acetic acid solution at a rate of 1 kg of ground material for 10 1 of solution.
- the gel is then centrifuged at 4000 rpm for 5 minutes.
- the gel which will be used consists of the supernatant obtained whose collagen concentration is between 0.5 and 2%.
- This gel is poured into a lyophilization tray at a rate of 20 g / cm. It is then lyophilized after freezing at -30 ° C and heating to + 32 ° C. The lyophilization lasts a total of 16 hours under a pressure of 400 microbars.
- the matrix obtained is then crosslinked by hydrothermal dehydration (DHT). This consists of heating in an oven at 110 ° C under a vacuum of 400 microbars for 16 hours.
- DHT hydrothermal dehydration
- the collagen matrix of Example 16 is incubated for 24 h in a solution containing 5 to 250 ⁇ l of DPPA / g of collagen contained in 100 ml of dimethylformamide (DMF).
- the collagen is then freed from DPPA by rinsing in 100 ml of DMF.
- the DMF is then eliminated by rinsing in 100 ml of a borate buffer solution pH 8.9 (sodium tetraborate 0.04 M, boric acid 0.04 M).
- the collagen is finally incubated overnight in the same borate buffer.
- the borate buffer is removed by rinsing with continuous permuted water for 6 h.
- the aquatic collagen matrix of Example 16 is crosslinked with EDC (Ethyldimethylaminopropyl carbodiimide) at the concentration of 0.23 to 0.69 g / g of collagen, and with NHS (N-hydroxysuccinimide) at the concentration of 0.42 g / g of collagen.
- EDC Ethyldimethylaminopropyl carbodiimide
- NHS N-hydroxysuccinimide
- the collagen After rinsing with deionized water, the collagen is again lyophilized.
- the porous aquatic collagen matrix of Example 16 is crosslinked for 24 to 96 h in a solution containing 0.6 to 1% of GTA at 20 ° C. After rinsing with deionized water, the collagen is again lyophilized.
- Porous matrix prepared with the native aquatic collagen of Example 16 in combination with chitosan and a glycosaminoglycan as described in the European patent of May 29, 1991 No. 296078
- Porous matrix described in Example 16 surfaced with a collagen film
- the collagen gel the dry matter of which is between 0.3 and 0.8%, is dried in an oven at 30 ° C or in a hood at the rate of 0.5 g of gel / cm 2 of tray.
- the native aquatic collagen gel of 0.5% to 2% in dry matter is deposited at the rate of 0.5 g per cm 2 in a lyophilization tray, then the collagen film is deposited on this gel and the whole is lyophilized.
- the lyophilisate obtained is crosslinked with DHT.
- EXAMPLE 22 Porous collagen alone matrix described in Example 16 surfaced with a compressed collagen sponge.
- the collagen gel prepared as in Example 16 and having a dry matter of between 0.3 and 1.5% is lyophilized so as to obtain a sponge having a weight of between 0.5 and 2 g / cm 2 .
- the lyophilisate is compressed for 5 to 60 seconds, at a temperature between 20 and 60 ° C and a pressure between 50 and 200 bars (50 to 200.10 5 Pa).
- Example 16 The collagen gel described in Example 16 is deposited at a rate of 0.5 g per cm in a freeze-drying tray. The compressed sponge is then deposited on this gel and the whole is freeze-dried. A porous sponge from collagen surfaced with a compressed collagen sponge is thus obtained. The whole is crosslinked by DHT as described in Example 16.
- EXAMPLE 23 Porous matrix consisting of collagen, chitosan and glycosaminoglycan as described in Example 20 and surfaced with the compressed sponge.
- the collagen, chitosan and glycosaminoglycan gel prepared according to the method of Example 20, is deposited at a rate of 0.5 g per cm 2 in a lyophilization tray, then the compressed sponge is deposited on this gel and the whole is freeze-dried. The lyophilisate is then crosslinked by DHT as described in Example 16.
- Example 17 an aquatic porous matrix crosslinked with DPPA is produced on the one hand, according to Example 17.
- a fabricates a comparative porous matrix with collagen of bovine origin, also called bovine matrix, crosslinked with DPPA, under the same conditions as those of Example 17.
- the culture of these aquatic and bovine matrices is carried out respectively in medium composed of DMEM / HAM F 12 in a 50/50 ratio (v / v) supplemented with 10% fetal calf serum, 100 IU / ml of penicillin, 25 ⁇ g / ml of gentamycin, 1 ⁇ g / ml of amphotericin B, 50 ⁇ g / ml of vitamin C.
- This culture is carried out for 1 month by changing the culture medium 3 times a week.
- MTT ie 3- (4- (dimethylthiazol-2-yl) 2,5-diphenyltetrazolium bromide
- the optical density of the transformation product (formazan blue) is read at 550 nm after self-dissolution in DMSO.
- the optical density obtained is proportional to the activity of the succinate dehydrogenases which are capable of carrying out the transformation of the light yellow tetrazolium MTT salt into blue crystals of formazan.
- the curve with the diamonds is that obtained with the aquatic matrix and the curve with the squares is that obtained with the bovine matrix. It is observed from the results that in a completely su ⁇ renant manner, the aquatic matrix not only constitutes a support allowing the survival of normal human fibroblasts but also the cellular proliferation of these normal human fibroblasts, while even constituting a much better culture support during first three weeks.
- the aquatic collagen is, in a su ⁇ renant manner, particularly suitable for producing a tissue engineering support in particular for applications in vitro and even and especially in vivo to constitute biomaterials containing living cells and in particular and preferably living cells of human beings.
- the assay is carried out by the Pierce microBCA method.
- the cell density was evaluated by an MTT test under the conditions described above.
- the relative protein content corresponds to the protein content reduced to 1 unit of cell density expressed in optical density or OD, in order to reason at equivalent cell concentration.
- the results obtained are listed in Table II below:
- fibroblasts could be observed in matrices of bovine and aquatic origin. In both types of matrices, we note the presence of an abundant neosynthesized extracellular matrix. The neosynthesized extracellular matrix can be differentiated by the periodic striation of the deposited collagen fibers compared to the collagen clusters forming the three-dimensional matrix of the starting sponge.
- Test 1 For this test, a porous matrix is produced in the form of a porous sponge from an aquatic collagen gel prepared from 1.3% by weight of aquatic collagen, which is frozen at ⁇ 80. ° C and which is subjected to a standard lyophilization in accordance with Example 17 and which is then subjected to crosslinking with DPPA in a proportion of 250 ⁇ l / g of sponge in the dry state.
- a porous support in the form of an aquatic sponge is prepared from an aquatic collagen gel comprising 0.7% by weight of aquatic collagen, which is subjected to freezing at -80 ° C., then to standard lyophilization and crosslinking with DPPA at 250 ⁇ l / g dry as in test 1.
- a porous support comprising an aquatic collagen sponge obtained from an aquatic collagen gel comprising 1.1% by weight of aquatic collagen, which is subjected to freezing at -80 ° C., then to standard lyophilization and crosslinking with DPPA at 250 ⁇ l / g dry as in test 2, the difference residing in a proportion of 1.1% by weight of aquatic collagen.
- the aquatic collagen is derived, as in Example 17, from the ventral sole skin.
- Example 25 Is used as in Example 25, normal human fibroblasts but which are taken at 8 th passage. Seeding is carried out at the rate of 275,000 cells per cm.
- the culture medium is composed of DMEM / HAM F12 50/50 (v / v) added with 10% by weight of fetal calf serum, 100 IU / ml of penicillin, 25 ⁇ g / ml of gentamycin, 1 ⁇ g / ml of amphotericin B, 50 ⁇ g / ml of vitamin C.
- the culture is carried out for 1 month by changing the medium 3 times a week.
- Alamar Blue is added at a rate of 2% by weight of a culture medium used, when it is desired to measure the cell viability on a sample taken from the culture medium. • After incubation at 2 h 20 at 37 ° C., the fluorescence is read, on the basis of an excitation at 530 nm and an emission at 590 nm).
- the intensity of the fluorescence obtained is proportional to the metabolic activity of the cells.
- the cell viability measurement is carried out on 10 samples after 1, 4 6, 11 17 days of culture.
- the results of the table UI are also the subject of attached figure 7. They show the fibrobiastic proliferation curves in equivalent dermis.
- the solid diamond curve is that performed with test 1; the curve in full square is that carried out with test 2; the triangle curve is that carried out with test 3 and the curve with the crosses is that carried out with test 4.
- the various matrices prepared can allow good fibrobiastic growth after 17 days of culture.
- the fibroblasts adhere well to their three-dimensional support and divide very quickly in order to colonize the matrix.
- the proliferation profile is very slightly variable from one type of matrix to another, but after 17 days of culture, the fibrobiastic density is comparable whatever the manufacturing process.
- This test is similar to that of Example 25, except that a histology with immunostaining is carried out.
- Example 25 These are equivalent dermes from Example 25, the culture being carried out under the conditions of Example 25.
- This culture is therefore carried out for three weeks by changing the medium three times a week, the seeding of normal human fibroblasts having taken place at 300,000 cells per cm 2 as was indicated in Example 25.
- the fixation is carried out with paraformaldehyde at a content of 4% by weight, then a dehydration and a paraffin inclusion are carried out.
- Haidenhain after dewaxing and rehydration Haidenhain after dewaxing and rehydration.
- Tissue Tek OCT compound is carried out, that is to say an inclusion liquid supplied by Miles, Elkhart, Indiana, USA, and a cold cut at 7 ⁇ m. Immunostaining is performed as follows: i. With a first anti-human collagen type I antico ⁇ s of rabbit (dilution),
- the supports constituted respectively by an aquatic matrix and a bovine matrix form more or less loose pores in which the fibroblasts adhere.
- On the surface there is a higher proportion of fibroblasts forming a favorable surface treatment of the equivalent dermis for producing reconstructed skin.
- the distribution of fibroblasts is homogeneous in aquatic and bovine sponges.
- the matrix of aquatic origin is only very weakly marked by the antico ⁇ s anti-human collagen.
Landscapes
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Biomedical Technology (AREA)
- General Health & Medical Sciences (AREA)
- Zoology (AREA)
- Epidemiology (AREA)
- Veterinary Medicine (AREA)
- Organic Chemistry (AREA)
- Dermatology (AREA)
- Medicinal Chemistry (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Transplantation (AREA)
- Wood Science & Technology (AREA)
- Animal Behavior & Ethology (AREA)
- Genetics & Genomics (AREA)
- Public Health (AREA)
- Bioinformatics & Cheminformatics (AREA)
- Biotechnology (AREA)
- Cell Biology (AREA)
- Microbiology (AREA)
- Biochemistry (AREA)
- General Engineering & Computer Science (AREA)
- Botany (AREA)
- Urology & Nephrology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Composite Materials (AREA)
- Materials Engineering (AREA)
- Materials For Medical Uses (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10196234T DE10196234B4 (de) | 2000-05-26 | 2001-05-25 | Verfahren zur Herstellung eines Verbundprodukts aus Kollagen für die Gewebebildung und seine Verwendung |
JP2001587833A JP3865635B2 (ja) | 2000-05-26 | 2001-05-25 | 組織工学及び生体材料製造のためのコラーゲンベースによる支持体 |
KR20027015963A KR100520944B1 (ko) | 2000-05-26 | 2001-05-25 | 인공조직 및 생체재료 제조용 콜라겐 지지체 |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0006743 | 2000-05-26 | ||
FR0006748 | 2000-05-26 | ||
US09/616,526 US6790454B1 (en) | 2000-05-26 | 2000-07-14 | Processes for the preparation of novel collagen-based supports for tissue engineering, and biomaterials obtained |
US09/616,526 | 2000-07-14 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2001091821A1 true WO2001091821A1 (fr) | 2001-12-06 |
Family
ID=24469853
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FR2001/001631 WO2001091821A1 (fr) | 2000-05-26 | 2001-05-25 | Supports a base de collagene pour l'ingenierie tissulaire et la preparation de biomateriaux |
Country Status (1)
Country | Link |
---|---|
WO (1) | WO2001091821A1 (fr) |
Cited By (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2003060060A1 (fr) * | 2002-01-15 | 2003-07-24 | Verigen Ag | Support pour membranes destinees a la culture et au stockage de cellules |
US7053051B2 (en) | 2003-10-28 | 2006-05-30 | Medtronic, Inc. | Methods of preparing crosslinked materials and bioprosthetic devices |
US7255857B2 (en) | 2004-01-23 | 2007-08-14 | Massachusetts Eye & Ear Infirmary | Lysyl oxidase-like 1 (LOXL1) and elastogenesis |
EP1930411A1 (fr) * | 2006-12-08 | 2008-06-11 | Reliance Life Sciences Pvt., Ltd. | Équivalent de tissu tridimensionnel utilisant une culture de macromasse |
KR100874543B1 (ko) | 2002-04-22 | 2008-12-16 | 동아제약주식회사 | 인공피부 배양물 및 그 제조방법 |
US7993922B2 (en) | 2002-10-18 | 2011-08-09 | Reliance Life Sciences Pvt. Ltd. | Three-dimensional tissue equivalent using macromass culture |
CN102657897A (zh) * | 2012-05-21 | 2012-09-12 | 中国人民解放军第三军医大学第三附属医院 | 一种载TGF-β3的缓释组织工程膜的制备方法 |
WO2014009566A1 (fr) | 2012-07-13 | 2014-01-16 | Laboratoires Expanscience | Procédé d'identification de marqueurs moléculaires de la peau d'enfant |
US8906425B2 (en) | 2003-06-13 | 2014-12-09 | Basf Beauty Care Solutions France S.A.S. | Stimulation of the synthesis of the activity of an isoform of lysyl oxidase-like LOXL for stimulating the formation of elastic fibers |
CN104225689A (zh) * | 2013-06-08 | 2014-12-24 | 北京航空航天大学 | 一种鱼胶原骨诱导再生膜的制备方法 |
US9283074B2 (en) | 2002-06-13 | 2016-03-15 | Kensey Nash Bvf Technology, Llc | Devices and methods for treating defects in the tissue of a living being |
CN105457107A (zh) * | 2016-01-12 | 2016-04-06 | 四川大学 | 一种双功能层口腔修复膜及其制备方法 |
WO2017220763A1 (fr) | 2016-06-23 | 2017-12-28 | Laboratoires Expanscience | Modèles de la dermatite atopique juvénile |
WO2018234430A1 (fr) | 2017-06-22 | 2018-12-27 | Laboratoires Expanscience | Modeles de peau sensible reconstituee |
CN109364303A (zh) * | 2019-01-02 | 2019-02-22 | 沈阳尚贤微创医疗器械股份有限公司 | 一种具有双层结构的仿生神经修复材料及其制备方法 |
CN110386976A (zh) * | 2019-06-25 | 2019-10-29 | 浙江省农业科学院 | 一种草鱼鱼鳔胶原蛋白自组装方法及胶原蛋白生物原材料 |
CN110974974A (zh) * | 2019-12-09 | 2020-04-10 | 山东兴瑞生物科技有限公司 | 交联人源干细胞因子的胶原蛋白、及其制备方法、在美容和皮肤修复领域的应用 |
US10837958B2 (en) | 2014-03-31 | 2020-11-17 | Laboratoires Expanscience | Method for evaluating the harmful effects of urine on children's skin |
CN112831459A (zh) * | 2019-11-25 | 2021-05-25 | 杭州协合医疗用品有限公司 | 一种胶原蛋白黑素细胞复合物、制备方法及应用 |
CN114225110A (zh) * | 2022-01-05 | 2022-03-25 | 奥精医疗科技股份有限公司 | 一种胶原基硬脑膜及其制备方法 |
US11892447B2 (en) | 2015-12-16 | 2024-02-06 | Laboratoires Expanscience | Method for evaluating the effects of dehydration on children's skin |
CN119909164A (zh) * | 2025-04-03 | 2025-05-02 | 艾美行动生物制药有限公司 | 一种甲型肝炎灭活疫苗及其制备方法 |
Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1989008467A1 (fr) * | 1988-03-15 | 1989-09-21 | Imedex | Patch de chirurgie viscerale |
WO1991016010A1 (fr) * | 1990-04-24 | 1991-10-31 | Mark Eisenberg | Equivalents composites de peau vivante |
FR2678624A1 (fr) * | 1991-07-04 | 1993-01-08 | Coletica | Utilisation de la peau non pigmentee de poisson, en particulier de poisson plat comme nouvelle source industrielle de collagene, procede d'extraction, collagene et biomateriau ainsi obtenus. |
FR2679778A1 (fr) * | 1991-08-02 | 1993-02-05 | Coletica | Utilisation de collagene reticule par un agent de reticulation pour la fabrication d'une membrane suturable, biocompatible, a resorption lente, ainsi qu'une telle membrane. |
EP0686402A1 (fr) * | 1994-06-08 | 1995-12-13 | Coletica | Membrane collagénique anti-adhérence post-opératoire |
WO1996008277A1 (fr) * | 1994-09-15 | 1996-03-21 | Coletica | Utilisation de membranes collageniques comme protheses de regeneration peritoneale |
EP0789074A1 (fr) * | 1996-01-23 | 1997-08-13 | L'oreal | Equivalent de peau comprenant des cellules de Langerhans |
WO1999019005A1 (fr) * | 1997-10-10 | 1999-04-22 | Ed Geistlich Söhne Ag Für Chemische Industrie | Membrane utilisee dans la regeneration tissulaire |
FR2783429A1 (fr) * | 1998-09-18 | 2000-03-24 | Imedex Biomateriaux | Materiau collagenique bicomposite,son procede d'obtention et ses applications therapeutiques |
-
2001
- 2001-05-25 WO PCT/FR2001/001631 patent/WO2001091821A1/fr active IP Right Grant
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1989008467A1 (fr) * | 1988-03-15 | 1989-09-21 | Imedex | Patch de chirurgie viscerale |
WO1991016010A1 (fr) * | 1990-04-24 | 1991-10-31 | Mark Eisenberg | Equivalents composites de peau vivante |
FR2678624A1 (fr) * | 1991-07-04 | 1993-01-08 | Coletica | Utilisation de la peau non pigmentee de poisson, en particulier de poisson plat comme nouvelle source industrielle de collagene, procede d'extraction, collagene et biomateriau ainsi obtenus. |
FR2679778A1 (fr) * | 1991-08-02 | 1993-02-05 | Coletica | Utilisation de collagene reticule par un agent de reticulation pour la fabrication d'une membrane suturable, biocompatible, a resorption lente, ainsi qu'une telle membrane. |
EP0686402A1 (fr) * | 1994-06-08 | 1995-12-13 | Coletica | Membrane collagénique anti-adhérence post-opératoire |
WO1996008277A1 (fr) * | 1994-09-15 | 1996-03-21 | Coletica | Utilisation de membranes collageniques comme protheses de regeneration peritoneale |
EP0789074A1 (fr) * | 1996-01-23 | 1997-08-13 | L'oreal | Equivalent de peau comprenant des cellules de Langerhans |
WO1999019005A1 (fr) * | 1997-10-10 | 1999-04-22 | Ed Geistlich Söhne Ag Für Chemische Industrie | Membrane utilisee dans la regeneration tissulaire |
FR2783429A1 (fr) * | 1998-09-18 | 2000-03-24 | Imedex Biomateriaux | Materiau collagenique bicomposite,son procede d'obtention et ses applications therapeutiques |
Cited By (31)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2003060060A1 (fr) * | 2002-01-15 | 2003-07-24 | Verigen Ag | Support pour membranes destinees a la culture et au stockage de cellules |
KR100874543B1 (ko) | 2002-04-22 | 2008-12-16 | 동아제약주식회사 | 인공피부 배양물 및 그 제조방법 |
EP2305180B1 (fr) | 2002-06-13 | 2017-04-05 | Kensey Nash BVF Technology, LLC | Dispositifs pour traiter les défauts dans les tissus d'un être vivant |
US9283074B2 (en) | 2002-06-13 | 2016-03-15 | Kensey Nash Bvf Technology, Llc | Devices and methods for treating defects in the tissue of a living being |
US7993922B2 (en) | 2002-10-18 | 2011-08-09 | Reliance Life Sciences Pvt. Ltd. | Three-dimensional tissue equivalent using macromass culture |
US8906425B2 (en) | 2003-06-13 | 2014-12-09 | Basf Beauty Care Solutions France S.A.S. | Stimulation of the synthesis of the activity of an isoform of lysyl oxidase-like LOXL for stimulating the formation of elastic fibers |
US7053051B2 (en) | 2003-10-28 | 2006-05-30 | Medtronic, Inc. | Methods of preparing crosslinked materials and bioprosthetic devices |
US7255857B2 (en) | 2004-01-23 | 2007-08-14 | Massachusetts Eye & Ear Infirmary | Lysyl oxidase-like 1 (LOXL1) and elastogenesis |
US7255856B2 (en) | 2004-01-23 | 2007-08-14 | Massachusetts Eye & Ear Infirmary | Lysyl oxidase-like 1 (LOXL1) and elastogenesis |
US7674458B2 (en) | 2004-01-23 | 2010-03-09 | Massachusetts Eye & Ear Infirmary | Lysyl oxidase-like 1 (LOXL1) and elastogenesis |
US8173121B2 (en) | 2004-01-23 | 2012-05-08 | Massachusetts Eye & Ear Infirmary | Lysyl oxidase-like 1 (LOXL1) and elastogenesis |
US8404231B2 (en) | 2004-01-23 | 2013-03-26 | Massachusetts Eye And Ear Infirmary | Lysyl oxidase-like 1 (LOXL1) and elastogenesis |
EP1930411A1 (fr) * | 2006-12-08 | 2008-06-11 | Reliance Life Sciences Pvt., Ltd. | Équivalent de tissu tridimensionnel utilisant une culture de macromasse |
WO2008068776A3 (fr) * | 2006-12-08 | 2008-07-31 | Reliance Life Sciences Pvt Ltd | Équivalent de tissu tridimensionnel utilisant une culture de macromasse |
CN102657897A (zh) * | 2012-05-21 | 2012-09-12 | 中国人民解放军第三军医大学第三附属医院 | 一种载TGF-β3的缓释组织工程膜的制备方法 |
WO2014009566A1 (fr) | 2012-07-13 | 2014-01-16 | Laboratoires Expanscience | Procédé d'identification de marqueurs moléculaires de la peau d'enfant |
CN104225689A (zh) * | 2013-06-08 | 2014-12-24 | 北京航空航天大学 | 一种鱼胶原骨诱导再生膜的制备方法 |
US10837958B2 (en) | 2014-03-31 | 2020-11-17 | Laboratoires Expanscience | Method for evaluating the harmful effects of urine on children's skin |
US11892447B2 (en) | 2015-12-16 | 2024-02-06 | Laboratoires Expanscience | Method for evaluating the effects of dehydration on children's skin |
CN105457107A (zh) * | 2016-01-12 | 2016-04-06 | 四川大学 | 一种双功能层口腔修复膜及其制备方法 |
WO2017220763A1 (fr) | 2016-06-23 | 2017-12-28 | Laboratoires Expanscience | Modèles de la dermatite atopique juvénile |
WO2018234430A1 (fr) | 2017-06-22 | 2018-12-27 | Laboratoires Expanscience | Modeles de peau sensible reconstituee |
US12061189B2 (en) | 2017-06-22 | 2024-08-13 | Laboratoires Expanscience | Models of reconstructed sensitive skin |
CN109364303A (zh) * | 2019-01-02 | 2019-02-22 | 沈阳尚贤微创医疗器械股份有限公司 | 一种具有双层结构的仿生神经修复材料及其制备方法 |
CN110386976B (zh) * | 2019-06-25 | 2020-12-25 | 浙江省农业科学院 | 一种草鱼鱼鳔胶原蛋白自组装方法及胶原蛋白生物原材料 |
CN110386976A (zh) * | 2019-06-25 | 2019-10-29 | 浙江省农业科学院 | 一种草鱼鱼鳔胶原蛋白自组装方法及胶原蛋白生物原材料 |
CN112831459A (zh) * | 2019-11-25 | 2021-05-25 | 杭州协合医疗用品有限公司 | 一种胶原蛋白黑素细胞复合物、制备方法及应用 |
CN110974974B (zh) * | 2019-12-09 | 2022-08-30 | 山东兴瑞生物科技有限公司 | 交联人源干细胞因子的胶原蛋白、及其制备方法、在美容和皮肤修复领域的应用 |
CN110974974A (zh) * | 2019-12-09 | 2020-04-10 | 山东兴瑞生物科技有限公司 | 交联人源干细胞因子的胶原蛋白、及其制备方法、在美容和皮肤修复领域的应用 |
CN114225110A (zh) * | 2022-01-05 | 2022-03-25 | 奥精医疗科技股份有限公司 | 一种胶原基硬脑膜及其制备方法 |
CN119909164A (zh) * | 2025-04-03 | 2025-05-02 | 艾美行动生物制药有限公司 | 一种甲型肝炎灭活疫苗及其制备方法 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
WO2001091821A1 (fr) | Supports a base de collagene pour l'ingenierie tissulaire et la preparation de biomateriaux | |
US6974679B2 (en) | Support with collagen base for tissue engineering and manufacture of biomaterials | |
WO2001092322A1 (fr) | Utilisation de collagene d'origine aquatique pour la realisation de supports destines a l'ingenierie tissulaire, et supports et biomateriaux obtenus | |
US6790454B1 (en) | Processes for the preparation of novel collagen-based supports for tissue engineering, and biomaterials obtained | |
FR2809412A1 (fr) | Utilisation de collagene d'origine aquatique pour la realisation de supports destines a l'ingenierie tissulaire, et supports et biomateriaux obtenus | |
JP3865635B2 (ja) | 組織工学及び生体材料製造のためのコラーゲンベースによる支持体 | |
US8222031B2 (en) | Three-dimensional skin model | |
CA2306317C (fr) | Equivalent de peau agee | |
JP6549213B2 (ja) | 真皮層及び表皮層を含む三次元培養皮膚モデルを製造する方法及びそれにより製造された三次元培養皮膚モデル | |
FR2809313A1 (fr) | Procedes de preparation de nouveaux supports a base de collagene pour l'ingenieurie tissulaire et biomateriaux obtenus | |
EP3759153B1 (fr) | Hydrogel pour stimuler la neurotisation, l'osteogenese et l'angiogenese | |
WO2016151133A1 (fr) | Procédé de reconstruction de peau | |
EP1960011B1 (fr) | Utilisation d' un polysaccharide excrete par l'espece vibrio diabolicus a des fins d'ingenierie des tissus conjonctifs non mineralises | |
FR2927632A1 (fr) | Cornee et muqueuse reconstruites. | |
WO2016166479A1 (fr) | Procédé de préparation d'hydrogel à partir d'acide hyaluronique modifié et de collagène de type i | |
EP0217816B1 (fr) | Produit a base d'elastine, procede pour sa preparation et ses applications biologiques, en particulier en tant que biomateriaux et supports artificiels | |
FR2809314A1 (fr) | Utilisation de collagene d'origine aquatique pour la realisation de supports destines a l'ingenierie tissulaire, et supports et biomateriaux obtenus | |
EP2406275B1 (fr) | Peptide promoteur de l'adhesion et de la migration cellulaire | |
WO2006018551A1 (fr) | Nouveau peptide et composition pharmaceutique le contenant | |
EP4125962B1 (fr) | Biomatériau comprenant une matrice poreuse résorbable et procédé de fabrication associé | |
FR2822842A1 (fr) | Procede de preparation d'un neo-tissu cartilagineux | |
WO2012059703A1 (fr) | Procede in vitro ou ex vivo pour la conservation et/ou la maintenance en survie d'un epiderme | |
McInnes | Development of a Novel Protein-based Hydrogel for 3D Bioplotting | |
CN119656386A (zh) | 一种仿生矿化胶原膜及其制备方法和在制备医用材料中的应用 | |
EP4359022A1 (fr) | Procede de consolidation d'un hydrogel alginate / gelatine |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AK | Designated states |
Kind code of ref document: A1 Designated state(s): DE JP KR US |
|
DFPE | Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101) | ||
WWE | Wipo information: entry into national phase |
Ref document number: 1020027015963 Country of ref document: KR |
|
WWP | Wipo information: published in national office |
Ref document number: 1020027015963 Country of ref document: KR |
|
RET | De translation (de og part 6b) |
Ref document number: 10196234 Country of ref document: DE Date of ref document: 20030417 Kind code of ref document: P |
|
WWE | Wipo information: entry into national phase |
Ref document number: 10196234 Country of ref document: DE |
|
REG | Reference to national code |
Ref country code: DE Ref legal event code: 8607 |
|
WWG | Wipo information: grant in national office |
Ref document number: 1020027015963 Country of ref document: KR |
|
REG | Reference to national code |
Ref country code: DE Ref legal event code: 8607 |
|
REG | Reference to national code |
Ref country code: DE Ref legal event code: 8607 |