ES2684856A2 - Método para producir una matriz de tejido descelularizado - Google Patents
Método para producir una matriz de tejido descelularizado Download PDFInfo
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- ES2684856A2 ES2684856A2 ES201890038A ES201890038A ES2684856A2 ES 2684856 A2 ES2684856 A2 ES 2684856A2 ES 201890038 A ES201890038 A ES 201890038A ES 201890038 A ES201890038 A ES 201890038A ES 2684856 A2 ES2684856 A2 ES 2684856A2
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- adipose tissue
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- degrees celsius
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- decellularization
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- 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
- A61L27/3683—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 subjected to a specific treatment prior to implantation, e.g. decellularising, demineralising, grinding, cellular disruption/non-collagenous protein removal, anti-calcification, crosslinking, supercritical fluid extraction, enzyme treatment
- A61L27/3687—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 subjected to a specific treatment prior to implantation, e.g. decellularising, demineralising, grinding, cellular disruption/non-collagenous protein removal, anti-calcification, crosslinking, supercritical fluid extraction, enzyme treatment characterised by the use of chemical agents in the treatment, e.g. specific enzymes, detergents, capping agents, crosslinkers, anticalcification agents
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- A61P41/00—Drugs used in surgical methods, e.g. surgery adjuvants for preventing adhesion or for vitreum substitution
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Abstract
Description
- CONDICIONES DE DESCELULARIZACIÓN
- ID
- TRIPSINA + TRITÓN-X100 LIPASA DNASA
- BM1
- 30 min. Tripsina/EDTA a 37 ºC y Tritón-x al 1 % durante la noche a TA 50 u./100 mg 23 h 37 ºC SIN TRATAR
- BM2
- Benzonasa EMPROVE® bio 714 u./mg 40 h. / 37 ºC
- BM3
- Benzonasa EMPROVE® bio 714 u./mg 72 h./ 37 ºC
- BM4
- Benzonasa EMPROVE® bio 1428 u./mg 40 h./ 37 ºC
- BM5
- Benzonasa EMPROVE® bio 1428 u./mg 72 h./ 37 ºC
- BM6
- 50 u/100 mg 23 h 37 ºC DNAsa para uso en investigación 1428 u./mg 72 h. / 37 ºC
- LM1
- SIN TRATAR Benzonasa EMPROVE® bio (Merck Millipore) 1428 u./mg 72 h. / 37 ºC
- LM2
- 25 u/100 mg 23 h 37 ºC
- LM3
- 25 u/100 mg 44 h 37 ºC
- LM4
- 50 u/100 mg 23 h 37 ºC
- LM5
- 50 u/100 mg 44 h 37 ºC
- M7
- SIN TRATAR 25 u/100 mg 44 h 37 ºC Benzonasa EMPROVE® bio 1428 u./mg 72 h./37 ºC
- M8
- 30 min. T/E a 37 ºC y Tritón-x al 1 % durante la noche a TA SIN TRATAR
- Condiciones IHC y controles
- Proteína
- Recuperación antigénica Anticuerpo, dilución e incubación Control positivo
- Colágeno de tipo I
- Solución 1 de acondicionamiento celular (CC1, Roche) ph = 8,3 30 min. Anticuerpo Anticuerpo monoclonal de ratón contra colágeno de tipo I clon COL-I (Abcam) Riñón
- Dilución
- 1:200
- Incubación
- 37 ºC/32 min
- Condiciones IHC y controles
- Proteína
- Recuperación antigénica Anticuerpo, dilución e incubación Control positivo
- Colágeno de tipo IV
- CC1 (pH = 8,3) 30 min. Anticuerpo Anticuerpo monoclonal de ratón contra colágeno de tipo IV clon CIV22 (Roche) Riñón
- Dilución
- No se requiere dilución
- Incubación
- 37 ºC/32 min
- Laminina
- Pepsina-HCl 0,2 M (Sigma) TA 30 min. Anticuerpo Anticuerpo monoclonal de ratón contra laminina humana, clon 4C7 (Dako) Riñón
- Dilución
- 1:10
- Incubación
- TA/60 min
- HSPG2/Perlecan
- CC1 (pH = 8,3) 30 min. Anticuerpo Anticuerpo monoclonal de ratón contra proteoglucano de heparán sulfato 2, clon A74, (Abcam) Colon
- Dilución
- 1:10
- Incubación
- 37 ºC/32 min
- ADN RESIDUAL
- ID
- PROMEDIO DESVIACIÓN TÍPICA ng de ADN/mg de TAhd en peso seco T de Student frente a BM1 T de Student frente a BM2
- BM1
- 356,506 ± 78,102 *
- ADN RESIDUAL
- ID
- PROMEDIO DESVIACIÓN TÍPICA ng de ADN/mg de TAhd en peso seco T de Student frente a BM1 T de Student frente a BM2
- BM2
- 0,613 ± 0,050 *
- BM3
- 0,004 ± 0,002 * **
- BM4
- 0,109 ± 0,015 * **
- BM5
- 0,047 ± 0,005 * **
- BM6
- 4,150 ± 0,187 T de Student frente a BM3
- **
- LM1
- 0,0002 ± 0,0003 T de Student frente a LM1
- LM3
- 0,306 ± 0,005 **
- LM4
- 0,045 ± 0,017 *
- LM5
- 0,212 ± 0,023 **
- M7
- 0,015 ± 0,004 *
- CONTENIDO DE PROTEÍNA TOTAL
- ID
- PROMEDIO DESVIACIÓNTÍPICA (μg de proteína/mg de TAhd en peso seco)
- LM1
- 759,1 ± 17,0
- LM2
- 565,2 ± 22,3
- LM3
- 931,5 ± 21,5
- LM4
- 693,6 ± 6,5
- LM5
- 820,6 ± 14,5
- M7
- 796,3 ± 20,6
- M8
- 824,12 ± 12,5
- ID DE PROTEÍNAS
- NOMBRES DE PROTEÍNAS NOMBRES DE GENES PÉPTIDOS PÉPTIDOS ÚNICOS
- P98160
- Proteína núcleo del proteoglucano heparán sulfato específico de la membrana basal HSPG2 21 21
- P21810
- Biglicano BGN 5 5
- P27797
- Calreticulina CALR 2 2
- P02452
- Cadena alfa-1(I) de colágeno (I) COL1A1 12 12
- P02462-2;P02462
- Cadena alfa-1 de colágeno (IV); Arresten COL4A1 4 4
- P12109
- Cadena alfa-1 de colágeno (VI) COL6A1 13 13
- P39059
- Cadena alfa-1(XV) de colágeno; COL15A1 2 2
- ID DE PROTEÍNAS
- NOMBRES DE PROTEÍNAS NOMBRES DE GENES PÉPTIDOS PÉPTIDOS ÚNICOS
- Restina; Restina2;Restina3;Restina-4
- P39060-2;P390601;P39060
- Cadena alfa-1de colágeno (XVIII); Endostatina COL18A1 2 2
- P08123
- Cadena alfa-2 de colágeno (I) COL1A2 6 6
- P08572
- Cadena alfa-2 de colágeno (IV); Canstatina COL4A2 4 4
- P12110;P12110-3; P12110-2
- Cadena alfa-2 de colágeno (VI) COL6A2 10 10
- P12111-4;P121112;P12111;P121113;P12111-5
- Cadena alfa-3 de colágeno (VI) COL6A3 52 52
- P07585;P07585-4; P07585-2;P07585-3
- Decorina DCN 10 10
- Q12805-2;Q128054;Q12805;Q128053;Q12805-5
- Proteína 1 de la matriz extracelular similar a fibulina que contiene EGF EFEMP1 9 9
- Q07507
- Dermatopontina DPT 4 4
- Q9Y6C2;Q9Y6C2-2
- EMILINA-1 EMILIN1 4 4
- P35555;P35556
- Fibrillina-1 FBN1 31 31
- Q9UBX5
- Fibulina-5 FBLN5 2 2
- P02675; CON__P02676
- Cadena beta de Fibrinógeno; Fibrinopéptido B; cadena beta de Fibrinógeno FGB 3 3
- P09382
- Galectina-1 LGALS1 6 6
- Q16363-2;Q16363
- Subunidad alfa-4 de laminina LAMA4 5 5
- P07942
- Subunidad beta-1 de laminina LAMB1 3 3
- P55268
- Subunidad beta-2 de laminina LAMB2 6 6
- P11047
- Subunidad gamma-1 de laminina LAMC1 10 10
- P51884;CON__Q05443
- Lumicano LUM 9 9
- P55083; P55083-2
- Glucoproteína 4 asociada a microfibrillas MFAP4 2 2
- P20774
- Mimecano OGN 4 4
- P14543-2;P14543
- Nidógeno-1 NID1 9 9
- ID DE PROTEÍNAS
- NOMBRES DE PROTEÍNAS NOMBRES DE GENES PÉPTIDOS PÉPTIDOS ÚNICOS
- Q14112;Q14112-2
- Nidógeno-2 NID2 12 12
- Q15063-4;Q150632;Q15063-3;Q150635;Q15063;Q150637;Q150636;CON__Q2KJC7
- Periostina POSTN 6 6
- P02545-2;P025456;P02545;P025453;P02545-5;P02545-4
- Prelamina-A/C;Lamina-A/C LMNA 11 11
- P51888
- Prolargina PRELP 5 5
- P60903
- Proteína S100-A10 S100A10 2 2
- P22105;P22105-3; P22105-4
- Tenascina-X TNXB 2 2
- Crapo, PM., et. al. “An overview of tissue and whole processes” Biomaterials 2011, vol. 32, págs. 3233-3243
- organ decellularization
- 5
- US2012/0264190 US2011/0151011
- US2013/0202563
- 10
- WO2011/132089
Claims (15)
- REIVINDICACIONES
- 1.
- Un método de descelularización de tejido adiposo que comprende las etapas de: a) Laminar el tejido adiposo; b) Tratar el tejido adiposo resultante de la etapa a) con una lipoproteína lipasa: a una concentración de 10-30 u/100 mg durante 39-49 horas a 32-42 grados Celsius o a una concentración de 45-55 u/100 mg durante 18-28 horas a 32-42 grados Celsius; y c) Tratar el tejido adiposo resultante de la etapa b) con una nucleasa: a una concentración de 709-719 u/mg durante 67-77 horas a 32-42 grados Celsius o a una concentración de 1423-1433 u/mg durante 35-45 horas a 32-42 grados Celsius o a una concentración de 1423-1433 u/mg durante 67-77 horas a 32-42 grados Celsius; para que el tejido adiposo tenga un contenido de ADN total igual o inferior a 50 ng/mg.
-
- 2.
- El método de descelularización de tejido adiposo según la reivindicación 1, en el que dicho método no comprende el uso de disolventes orgánicos.
-
- 3.
- El método de descelularización de tejido adiposo según cualquiera de las reivindicaciones 1-2, en el que: en la etapa b) el tratamiento se realiza a una concentración de 25 u/100 mg durante 44 horas a 37 grados Celsius o una a una concentración de 50 u/100 mg durante 23 horas a 37 grados Celsius, y la etapa c) se realiza a una concentración de 709719 u/mg durante 67-77 horas a 32-42 grados Celsius o a una concentración de 1423-1433 u/mg durante 35-45 horas a 32-42 grados Celsius o a una concentración de 1423-1433 u/mg durante 67-77 horas a 32-42 grados Celsius.
-
- 4.
- El método de descelularización de tejido adiposo según cualquiera de las reivindicaciones 1-2, en el que: la etapa b) se realiza a una concentración de 10-30 u/100 mg durante 39-49 horas a 32-42 grados Celsius o a una concentración de 45-55 u/100 mg durante 18-28 horas a 32-42 grados Celsius, y en la etapa c) el tratamiento se realiza a una concentración de 714 u/mg durante 72 horas a 37 grados Celsius o a una concentración de 1428 u/mg durante 40 horas a 37 grados Celsius o a una concentración de 1428 u/mg durante 72 horas a 37 grados Celsius.
-
- 5.
- El método de descelularización de tejido adiposo según cualquiera de las reivindicaciones 1 a 4, que adicionalmente comprende una etapa entre las etapas a) y b), en el que el tejido adiposo resultante de la etapa a) se trata con tripsina y tritón-X100.
-
- 6.
- El método de descelularización de tejido adiposo según cualquiera de las reivindicaciones 1 a 5, que adicionalmente comprende una etapa d) que comprende congelar o liofilizar y esterilizar el tejido adiposo resultante de la etapa c).
-
- 7.
- El método de descelularización de tejido adiposo según cualquiera de las reivindicaciones 1 a 6, en el que en las etapas b) y c), los tratamientos se realizan al vacío y con agitación a 100-150 rpm.
-
- 8.
- El método de descelularización de tejido adiposo según cualquiera de las reivindicaciones 1 a 7, en el que después de las etapas a), b) y c), hay una etapa de lavado con tampón a temperatura ambiente, al vacío y con agitación a 100-150 rpm, y en el que en la etapa de lavado después de la etapa a) el tampón comprende adicionalmente al menos un antibiótico, al menos un antimicótico y al menos un inhibidor de proteasa, en la etapa de lavado después de la etapa b) el tampón comprende al menos un antibiótico, al menos un antimicótico, al menos un inhibidor de proteasa y al menos un inhibidor de lipasa y en el que en la etapa de lavado después de la etapa c) el tampón comprende adicionalmente al menos un antibiótico, al menos un antimicótico, al menos un inhibidor de proteasa y al menos
un inhibidor de nucleasa. - 9. Un matriz de tejido adiposo descelularizado obtenible mediante el método segúncualquiera de las reivindicaciones 1 a 8. 5
-
- 10.
- El tejido adiposo descelularizado según la reivindicación 9, en el que el tejido adiposo tiene un contenido de ADN total de 0,015 a 0,306 ng/mg.
-
- 11.
- El tejido adiposo descelularizado según cualquiera de las reivindicaciones 9 a
10 10, en el que el tejido adiposo tiene un contenido de proteína total de 100-931 ug/mg y un contenido de proteína total de 100-931 ug/mg y un contenido de triglicéridos total de 25-75 % en peso. - 12. Un polvo, una espuma, una partícula o un hidrogel que comprende el tejido 15 adiposo descelularizado según cualquiera de las reivindicaciones 9-11.
- 13. Un armazón biocompatible o un revestimiento biocompatible que comprende el tejido adiposo descelularizado según cualquiera de las reivindicaciones 9-11 o el polvo, la espuma, la partícula o el hidrogel según la reivindicación 12.
- 14. El tejido adiposo descelularizado según cualquiera de las reivindicaciones 9 a 11, el polvo, la espuma, la partícula o el hidrogel según la reivindicación 12, o el armazón biocompatible o el revestimiento biocompatible según la reivindicación 13 para su uso en ingeniería tisular y terapia regenerativa.
- 15. El tejido adiposo descelularizado para su uso según la reivindicación 14, en el que la terapia es una terapia de cicatrización de heridas.
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