EP1307543A2 - Autologe bindegewebe, verfahren zu ihrer herstellung und ihre verwendung - Google Patents
Autologe bindegewebe, verfahren zu ihrer herstellung und ihre verwendungInfo
- Publication number
- EP1307543A2 EP1307543A2 EP01964866A EP01964866A EP1307543A2 EP 1307543 A2 EP1307543 A2 EP 1307543A2 EP 01964866 A EP01964866 A EP 01964866A EP 01964866 A EP01964866 A EP 01964866A EP 1307543 A2 EP1307543 A2 EP 1307543A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- connective tissue
- cells
- autologous
- stimulation
- takes place
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 238000000034 method Methods 0.000 title claims abstract description 21
- 210000002808 connective tissue Anatomy 0.000 title claims abstract description 17
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 12
- 210000001519 tissue Anatomy 0.000 claims abstract description 26
- 210000004027 cell Anatomy 0.000 claims abstract description 21
- 239000003246 corticosteroid Substances 0.000 claims abstract description 21
- 210000000845 cartilage Anatomy 0.000 claims abstract description 20
- 210000001608 connective tissue cell Anatomy 0.000 claims abstract description 20
- 229960001334 corticosteroids Drugs 0.000 claims abstract description 17
- 238000000338 in vitro Methods 0.000 claims abstract description 10
- 239000011159 matrix material Substances 0.000 claims abstract description 10
- 239000002243 precursor Substances 0.000 claims abstract description 6
- 108010080379 Fibrin Tissue Adhesive Proteins 0.000 claims description 11
- KIUKXJAPPMFGSW-DNGZLQJQSA-N (2S,3S,4S,5R,6R)-6-[(2S,3R,4R,5S,6R)-3-Acetamido-2-[(2S,3S,4R,5R,6R)-6-[(2R,3R,4R,5S,6R)-3-acetamido-2,5-dihydroxy-6-(hydroxymethyl)oxan-4-yl]oxy-2-carboxy-4,5-dihydroxyoxan-3-yl]oxy-5-hydroxy-6-(hydroxymethyl)oxan-4-yl]oxy-3,4,5-trihydroxyoxane-2-carboxylic acid Chemical compound CC(=O)N[C@H]1[C@H](O)O[C@H](CO)[C@@H](O)[C@@H]1O[C@H]1[C@H](O)[C@@H](O)[C@H](O[C@H]2[C@@H]([C@@H](O[C@H]3[C@@H]([C@@H](O)[C@H](O)[C@H](O3)C(O)=O)O)[C@H](O)[C@@H](CO)O2)NC(C)=O)[C@@H](C(O)=O)O1 KIUKXJAPPMFGSW-DNGZLQJQSA-N 0.000 claims description 10
- 229920002674 hyaluronan Polymers 0.000 claims description 10
- 229960003160 hyaluronic acid Drugs 0.000 claims description 10
- 229920000936 Agarose Polymers 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 9
- 230000000638 stimulation Effects 0.000 claims description 9
- 210000001612 chondrocyte Anatomy 0.000 claims description 8
- 239000002775 capsule Substances 0.000 claims description 7
- 238000002513 implantation Methods 0.000 claims description 7
- 238000001727 in vivo Methods 0.000 claims description 7
- 230000003110 anti-inflammatory effect Effects 0.000 claims description 6
- 239000012528 membrane Substances 0.000 claims description 6
- 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 5
- 229940072056 alginate Drugs 0.000 claims description 5
- 229920000615 alginic acid Polymers 0.000 claims description 5
- 235000010443 alginic acid Nutrition 0.000 claims description 5
- 230000010261 cell growth Effects 0.000 claims description 4
- 239000001963 growth medium Substances 0.000 claims description 4
- 230000007774 longterm Effects 0.000 claims description 4
- 229920000867 polyelectrolyte Polymers 0.000 claims description 4
- 210000000130 stem cell Anatomy 0.000 claims description 4
- 102000008186 Collagen Human genes 0.000 claims description 3
- 108010035532 Collagen Proteins 0.000 claims description 3
- 102000016611 Proteoglycans Human genes 0.000 claims description 3
- 108010067787 Proteoglycans Proteins 0.000 claims description 3
- 229920001436 collagen Polymers 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 230000008569 process Effects 0.000 claims description 3
- 229920001661 Chitosan Polymers 0.000 claims description 2
- 102000004127 Cytokines Human genes 0.000 claims description 2
- 108090000695 Cytokines Proteins 0.000 claims description 2
- 239000002870 angiogenesis inducing agent Substances 0.000 claims description 2
- 230000001772 anti-angiogenic effect Effects 0.000 claims description 2
- 229930182912 cyclosporin Natural products 0.000 claims description 2
- 239000000017 hydrogel Substances 0.000 claims description 2
- 230000002757 inflammatory effect Effects 0.000 claims description 2
- 239000003112 inhibitor Substances 0.000 claims description 2
- 102000008131 Bone Morphogenetic Protein 7 Human genes 0.000 claims 1
- 108010049870 Bone Morphogenetic Protein 7 Proteins 0.000 claims 1
- PMATZTZNYRCHOR-CGLBZJNRSA-N Cyclosporin A Chemical compound CC[C@@H]1NC(=O)[C@H]([C@H](O)[C@H](C)C\C=C\C)N(C)C(=O)[C@H](C(C)C)N(C)C(=O)[C@H](CC(C)C)N(C)C(=O)[C@H](CC(C)C)N(C)C(=O)[C@@H](C)NC(=O)[C@H](C)NC(=O)[C@H](CC(C)C)N(C)C(=O)[C@H](C(C)C)NC(=O)[C@H](CC(C)C)N(C)C(=O)CN(C)C1=O PMATZTZNYRCHOR-CGLBZJNRSA-N 0.000 claims 1
- 229930105110 Cyclosporin A Natural products 0.000 claims 1
- 108010036949 Cyclosporine Proteins 0.000 claims 1
- 229960001265 ciclosporin Drugs 0.000 claims 1
- 238000002955 isolation Methods 0.000 claims 1
- 210000000988 bone and bone Anatomy 0.000 abstract description 8
- 230000006641 stabilisation Effects 0.000 abstract description 3
- 238000011105 stabilization Methods 0.000 abstract description 3
- 230000004936 stimulating effect Effects 0.000 abstract description 3
- 210000003321 cartilage cell Anatomy 0.000 abstract description 2
- 239000000560 biocompatible material Substances 0.000 description 8
- 230000007547 defect Effects 0.000 description 7
- 230000002354 daily effect Effects 0.000 description 5
- 238000005538 encapsulation Methods 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 4
- 239000003470 adrenal cortex hormone Substances 0.000 description 3
- RKHQGWMMUURILY-UHRZLXHJSA-N cortivazol Chemical compound C([C@H]1[C@@H]2C[C@H]([C@]([C@@]2(C)C[C@H](O)[C@@H]1[C@@]1(C)C2)(O)C(=O)COC(C)=O)C)=C(C)C1=CC1=C2C=NN1C1=CC=CC=C1 RKHQGWMMUURILY-UHRZLXHJSA-N 0.000 description 3
- 230000001900 immune effect Effects 0.000 description 3
- 230000004083 survival effect Effects 0.000 description 3
- 210000003437 trachea Anatomy 0.000 description 3
- 230000000735 allogeneic effect Effects 0.000 description 2
- 230000004069 differentiation Effects 0.000 description 2
- 210000002950 fibroblast Anatomy 0.000 description 2
- 230000012010 growth Effects 0.000 description 2
- 210000003128 head Anatomy 0.000 description 2
- 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 2
- 229920003023 plastic Polymers 0.000 description 2
- 229920000747 poly(lactic acid) Polymers 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 238000007910 systemic administration Methods 0.000 description 2
- 230000009885 systemic effect Effects 0.000 description 2
- 206010001367 Adrenal insufficiency Diseases 0.000 description 1
- 102000007350 Bone Morphogenetic Proteins Human genes 0.000 description 1
- 108010007726 Bone Morphogenetic Proteins Proteins 0.000 description 1
- 102000029816 Collagenase Human genes 0.000 description 1
- 108060005980 Collagenase Proteins 0.000 description 1
- 206010010356 Congenital anomaly Diseases 0.000 description 1
- 108010036941 Cyclosporins Proteins 0.000 description 1
- 102000004190 Enzymes Human genes 0.000 description 1
- 108090000790 Enzymes Proteins 0.000 description 1
- 241000282412 Homo Species 0.000 description 1
- 108010003272 Hyaluronate lyase Proteins 0.000 description 1
- 102000001974 Hyaluronidases Human genes 0.000 description 1
- 206010062016 Immunosuppression Diseases 0.000 description 1
- 206010061218 Inflammation Diseases 0.000 description 1
- 241001465754 Metazoa Species 0.000 description 1
- 241001237732 Microtia Species 0.000 description 1
- 206010028980 Neoplasm Diseases 0.000 description 1
- 239000006146 Roswell Park Memorial Institute medium Substances 0.000 description 1
- 241001183191 Sclerophthora macrospora Species 0.000 description 1
- 206010052779 Transplant rejections Diseases 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 208000017515 adrenocortical insufficiency Diseases 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 239000012620 biological material Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229940112869 bone morphogenetic protein Drugs 0.000 description 1
- 238000004113 cell culture Methods 0.000 description 1
- 239000006143 cell culture medium Substances 0.000 description 1
- 230000002648 chondrogenic effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000002537 cosmetic Substances 0.000 description 1
- QTCANKDTWWSCMR-UHFFFAOYSA-N costic aldehyde Natural products C1CCC(=C)C2CC(C(=C)C=O)CCC21C QTCANKDTWWSCMR-UHFFFAOYSA-N 0.000 description 1
- 210000000883 ear external Anatomy 0.000 description 1
- 238000012407 engineering method Methods 0.000 description 1
- 229940088598 enzyme Drugs 0.000 description 1
- 210000003238 esophagus Anatomy 0.000 description 1
- 230000003203 everyday effect Effects 0.000 description 1
- 210000000630 fibrocyte Anatomy 0.000 description 1
- 229960002773 hyaluronidase Drugs 0.000 description 1
- 229960000890 hydrocortisone Drugs 0.000 description 1
- 230000008102 immune modulation Effects 0.000 description 1
- 230000001506 immunosuppresive effect Effects 0.000 description 1
- 239000007943 implant Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000004054 inflammatory process Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- ISTFUJWTQAMRGA-UHFFFAOYSA-N iso-beta-costal Natural products C1C(C(=C)C=O)CCC2(C)CCCC(C)=C21 ISTFUJWTQAMRGA-UHFFFAOYSA-N 0.000 description 1
- 230000003902 lesion Effects 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 230000035800 maturation Effects 0.000 description 1
- 239000002609 medium Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 210000000492 nasalseptum Anatomy 0.000 description 1
- 210000001331 nose Anatomy 0.000 description 1
- 230000010412 perfusion Effects 0.000 description 1
- 230000035755 proliferation Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 210000002966 serum Anatomy 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- QQJLHRRUATVHED-UHFFFAOYSA-N tramazoline Chemical compound N1CCN=C1NC1=CC=CC2=C1CCCC2 QQJLHRRUATVHED-UHFFFAOYSA-N 0.000 description 1
- 229960001262 tramazoline Drugs 0.000 description 1
- 238000002054 transplantation Methods 0.000 description 1
- 230000000472 traumatic effect Effects 0.000 description 1
- 210000002268 wool Anatomy 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
- C12N5/0602—Vertebrate cells
- C12N5/0652—Cells of skeletal and connective tissues; Mesenchyme
- C12N5/0655—Chondrocytes; Cartilage
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P19/00—Drugs for skeletal disorders
- A61P19/04—Drugs for skeletal disorders for non-specific disorders of the connective tissue
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K35/00—Medicinal preparations containing materials or reaction products thereof with undetermined constitution
- A61K35/12—Materials from mammals; Compositions comprising non-specified tissues or cells; Compositions comprising non-embryonic stem cells; Genetically modified cells
-
- 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
- C12N2501/00—Active agents used in cell culture processes, e.g. differentation
- C12N2501/10—Growth factors
- C12N2501/155—Bone morphogenic proteins [BMP]; Osteogenins; Osteogenic factor; Bone inducing factor
-
- 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
- C12N2501/00—Active agents used in cell culture processes, e.g. differentation
- C12N2501/30—Hormones
- C12N2501/38—Hormones with nuclear receptors
- C12N2501/39—Steroid hormones
Definitions
- the invention relates to autologous connective tissue, processes for their production, their stabilization and their use as grafts.
- the tissues are produced by isolating suitable connective tissue cells, such as cartilage, perichondrium and / or periosteal cells and the corresponding precursor cells, multiplying them in vitro (tissue engineering), embedding them in a three-dimensional matrix, implanting them and stimulating them with corticosteroids.
- suitable connective tissue cells such as cartilage, perichondrium and / or periosteal cells and the corresponding precursor cells
- tissue engineering tissue engineering
- the tissues according to the invention are suitable for use as tissue engineering transplants, in particular as cartilage and bone tissues.
- Autologous tissue replacement can be produced in sufficient quantity using the tissue engineering method (patents: DE 4306661, DE 4431598, US 5891455, US 5932459, DE 4431598) - the problems of larger tissue defects would be compensated for.
- the tissue is used for transplantation into corresponding defects.
- the invention has for its object to improve the production of autologous vital tissue replacement materials.
- the object was achieved in that suitable connective tissue cells, such as cartilage and / or perichondrium and / or periosteal cells and the corresponding precursor cells, were isolated, expanded in vitro (tissue engineering), embedded in a three-dimensional matrix and stimulated by corticosteroids.
- suitable connective tissue cells such as cartilage and / or perichondrium and / or periosteal cells and the corresponding precursor cells.
- tissue engineering tissue engineering
- the essence of the invention is the temporary immunosuppression of the recipient of tissue engineering grafts.
- connective tissue cells for example stimulated - ie stimulated in growth, differentiation or maturation - chondrocytes are isolated, then increased and brought into the desired transplant form with biocompatible materials.
- the graft bed is treated once with a corticoid, followed by systemic administration of corticosteroids for about three weeks.
- Fibrin glue, alginate, hyaluronic acid, agarose and others are used as biocompatible materials, the combinations fibrin glue and hyaluronic acid as well as agarose and fibrin glue according to the invention.
- corticosteroids also mature and differentiate the graft in vivo (in vivo tissue engineering).
- An additional solution to protect against resorption and to stabilize grafts is the encapsulation of the autologous grafts.
- the encapsulation of heterologous grafts by means of cultivated cartilage tissue has already been described by Vacanti (US 5741685); however, this invention does not solve the problem of the stability of the grown cartilage itself.
- the procedure according to the invention allows the production of autologous cartilage and bone tissue, in particular plastic reconstructions and replacement for traumatic lesions (e.g. ear, nose, trachea, esophagus).
- the combination consists of known elements (tissue engineering grafts, connective tissue cells and their proliferation) and new ones (corticosteroids as a means of reducing rejection or infiltrative, inflammatory reactions in autologous grafts and corticosteroids as a growth and differentiation stimulus), which mutually influence and result in a new benefit in use (synergistic effect) and the desired success, which lies in the fact that now, with good tolerance for the recipient, a way to reduce non-specific and specific rejection reactions, which have limited the survival of the grafts, is shown.
- Another combination feature is that the biocompatible materials are used in new combinations - fibrin glue and hyaluronic acid as well as agarose and fibrin glue.
- This application claims autologous connective tissue that can be produced by isolating suitable connective tissue cells, increasing them in vitro (tissue engineering), embedding them in a three-dimensional matrix, then implanting them and stimulating them with corticosteroids.
- the corticosteroid-stimulated connective tissue cells are isolated in the form of cartilage and / or perichondrium and / or periosteal cells and / or their corresponding progenitor cells.
- Autologous connective tissue of the type mentioned can be produced, for example, by isolating stimulated chondrocytes, then increasing them and using them biocompatible materials are brought into the desired graft shape, after the implantation the graft bed is treated once with a corticoid and then a systemic application of corticosteroids takes several weeks.
- the corticosteroids also mature and differentiate the graft in vivo (in vivo tissue engineering).
- corticosteroids are temporarily administered in anti-inflammatory dosage for about three weeks.
- the corticosteroids are administered e.g.
- the local administration of corticosteroids in anti-inflammatory doses into the transplant bed for one time or for about three weeks is carried out temporarily.
- the production of bone tissue from corticosteroid-stimulated chondrocytes, perichondrial cells, periosteal cells and the corresponding precursor cells is based, for example, on that the stimulation of the corresponding connective tissue cells takes place in vitro before the implantation; for this purpose, the corticoids are added to the cell growth medium in appropriate doses - after the implantation takes place in vivo; the corticoids are applied to the transplant recipient; the application is as a long-term depot intramuscularly, daily intramuscularly, daily intravenously or daily orally.
- the production of grafts is carried out using a three-dimensional shape made of a bioabsorbable material or in the form of a suspension for insertion (e.g. injection) into corresponding defects.
- the encapsulation of autologous tissue engineering grafts for the purpose of biomechanical protection and mechanical immunological shielding / delimitation and matrix accumulation involves, with regard to the delimitation of grafts, hydrogels, hyaluronic acid, agarose, alginate, fibrin glue or the like Capsule / delimitation of the graft from one or more Zeil layers
- Connective tissue cells e.g. fibroblasts
- progenitor cells e.g. fibroblasts
- it is a membrane made of collagen, chitosan, proteoglycans or hyaluronic acid (or
- Anti-inflammatory and anti-angiogenic factors can be incorporated into both the graft and the matrix.
- BMP-7 (BMP - bone morphogenetic protein), in particular, is brought into the graft or into the capsule as an anti-inflammatory factor.
- cyclosporins or inhibitors are also more inflammatory
- cartilage cells are isolated by means of an enzyme mix of collagenases and hyaluronidase. The subsequent multiplication of the cells takes place in cell culture bottles.
- the medium used is, for example, RPMI (commercially available cell culture medium) which, in addition to other additives, contains the serum of the animal species or of humans for which the graft to be produced is produced.
- biocompatible materials such as fibrin glue, alginate, hyaluronic acid [Lindenhayn K, Spitzer R, Heilmann HH, Perka C, Pommering K, Mennicke K, Sittinger M (1999) Retention of hyaluronic acid in alginate beads : aspects for in vitro cartilage engineering J Biomed Mat. Res.
- Systemic administration is based on the biorhythm of the endogenous cortisol. In order to prevent adrenal insufficiency, the dose level is reduced with the days.
- Example 1 as example 0, but with cartilage and perichondrium cells instead of chondrocytes as well as fibrin glue and hyaluronic acid as a biocompatible material.
- Example 2 as example 0, but with perichondrium and / or periosteal cells as well as fibrin glue and agarose as a biocompatible material.
- Example 3 as example 0, but with cartilage, perichondrium cells and / or their corresponding cartilage, perichondrium cells and / or their corresponding cartilage, perichondrium cells and / or their corresponding cartilage, perichondrium cells and / or their corresponding cartilage, perichondrium cells and / or their corresponding cartilage, perichondrium cells and / or their corresponding cartilage, perichondrium cells and / or their corresponding
- Progenitor cells as well as fibrin glue and agarose as a biocompatible material.
- Example 4 as example 0, but with fibrocytes and / or fibroblasts.
Landscapes
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Bioinformatics & Cheminformatics (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Wood Science & Technology (AREA)
- Genetics & Genomics (AREA)
- Biotechnology (AREA)
- General Health & Medical Sciences (AREA)
- Rheumatology (AREA)
- Zoology (AREA)
- General Chemical & Material Sciences (AREA)
- Medicinal Chemistry (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Pharmacology & Pharmacy (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Cell Biology (AREA)
- Animal Behavior & Ethology (AREA)
- Microbiology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Physical Education & Sports Medicine (AREA)
- Biochemistry (AREA)
- General Engineering & Computer Science (AREA)
- Medicines Containing Material From Animals Or Micro-Organisms (AREA)
- Materials For Medical Uses (AREA)
- Prostheses (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10038700 | 2000-07-31 | ||
| DE10038700A DE10038700B4 (de) | 2000-07-31 | 2000-07-31 | Autologe Bindegewebe, Verfahren zu ihrer Herstellung und ihre Verwendung |
| PCT/DE2001/002899 WO2002010351A2 (de) | 2000-07-31 | 2001-07-30 | Autologe bindegewebe, verfahren zu ihrer herstellung und ihre verwendung |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP1307543A2 true EP1307543A2 (de) | 2003-05-07 |
Family
ID=7651736
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP01964866A Withdrawn EP1307543A2 (de) | 2000-07-31 | 2001-07-30 | Autologe bindegewebe, verfahren zu ihrer herstellung und ihre verwendung |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP1307543A2 (de) |
| DE (1) | DE10038700B4 (de) |
| WO (1) | WO2002010351A2 (de) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10253066A1 (de) * | 2002-11-07 | 2004-05-27 | Co.Don Aktiengesellschaft | Gewebeersatzstruktur, Verfahren zur Modifikation einer Gewebeläsion und Verwendung von vorgeformtem dreidimensionalem Gewebe als Lieferant von Botenstoffen und/oder Strukturbausteinen |
| US7744869B2 (en) | 2003-08-20 | 2010-06-29 | Ebi, Llc | Methods of treatment using electromagnetic field stimulated mesenchymal stem cells |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999009149A1 (en) * | 1997-08-01 | 1999-02-25 | Massachusetts Institute Of Technology | Three-dimensional polymer matrices |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4431598C2 (de) * | 1993-03-03 | 1997-03-20 | Michael Sittinger | Verfahren zum Herstellen eines Implantates aus Zellkulturen |
| US5932459A (en) * | 1995-10-20 | 1999-08-03 | Sittinger; Michael | Artificial tissues, methods for the production and the use thereof |
| DE19835368C1 (de) * | 1998-08-05 | 2000-02-10 | Juergen Steinmeyer | Verfahren zur Herstellung einer Knorpelzellsuspension |
| FR2798671A1 (fr) * | 1999-09-16 | 2001-03-23 | Univ Paris Curie | Compositions de chondrocytes, preparation et utilisations |
-
2000
- 2000-07-31 DE DE10038700A patent/DE10038700B4/de not_active Expired - Fee Related
-
2001
- 2001-07-30 EP EP01964866A patent/EP1307543A2/de not_active Withdrawn
- 2001-07-30 WO PCT/DE2001/002899 patent/WO2002010351A2/de active Application Filing
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999009149A1 (en) * | 1997-08-01 | 1999-02-25 | Massachusetts Institute Of Technology | Three-dimensional polymer matrices |
Non-Patent Citations (7)
Also Published As
| Publication number | Publication date |
|---|---|
| WO2002010351A3 (de) | 2002-09-12 |
| DE10038700B4 (de) | 2006-09-07 |
| DE10038700A1 (de) | 2002-02-21 |
| WO2002010351A2 (de) | 2002-02-07 |
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