IMMORTALIZED CELL LINE FOR ENGINEERED SYNTHETIC LEATHER
Methods, compositions, kits and systems disclosed herein can be directed to engineered cells for producing synthetic leathers, artificial epidermal layers, artificial dermal layers, layered structures, products produced therefrom and methods of producing the same.
1 - 75 . (canceled)
76 . A method of forming tanned synthetic leather comprising:
a) introducing an exogenous polynucleotide into a fibroblast or fibroblast-like cell;
b) seeding the fibroblast or the fibroblast-like cell on a scaffold to form a cell layer; and
c) tanning a collagenous extracellular matrix comprising collagen secreted by the fibroblast or the fibroblast-like cell to generate the tanned synthetic leather.
77 . The method of claim 76 , wherein the fibroblast or the fibroblast-like cell comprises a bovine fibroblast.
78 . The method of claim 76 , wherein the introducing increases:
a) collagen production,
b) proliferation, or
c) any combination of (a) and (b);
wherein (a), (b), or (c) is relative to a control fibroblast or control fibroblast-like cell that is otherwise identical to the fibroblast or the fibroblast-like cell but lacks the exogenous polynucleotide.
79 . The method of claim 78 , wherein the collagen production is determined by microscopy, Sircol red assay, or a combination thereof.
80 . The method of claim 78 , wherein the proliferation is determined by manual cell counting, automated cell counting, indirect cell counting, or a combination thereof.
81 . The method of claim 76 , wherein the exogenous polynucleotide encodes a polypeptide or a biologically active fragment thereof, that alters telomerase activity or activity of a tumor suppressor protein.
82 . The method of claim 76 , wherein the exogenous polynucleotide encodes:
a) an SV40 large T antigen (SV40-TAg) polypeptide or a biologically active fragment thereof; or
b) a telomerase (TERT) protein or a biologically active fragment thereof.
83 . The method of claim 82 , wherein the exogenous polynucleotide encodes the telomerase (TERT) protein or the biologically active fragment thereof.
84 . The method of claim 76 , wherein the introducing immortalizes the fibroblast or the fibroblast-like cell.
85 . The method of claim 76 , wherein the scaffold comprises silk fibroin, cellulose, cotton, acetate, acrylic, latex fiber, linen, nylon, rayon, velvet, modacrylic, olefin polyester, polylactic acid (PLA), saran, vinyon, wool, jute, hemp, bamboo, flax, or a combination thereof.
86 . The method of claim 85 , wherein the scaffold comprises a rayon.
87 . The method of claim 76 , wherein the collagenous extracellular matrix comprises collagen type I, collagen type III, elastin, fibronectin, laminin, or a combination thereof.
88 . The method of claim 76 , wherein the cell layer is decellularized.
89 . The method of claim 76 , wherein the tanning comprises vegetable tanning, chrome tanning, aldehyde tanning, syntan tanning, bacterial dyeing, or a combination thereof.
90 . The method of claim 76 , further comprising introducing a mutation into the fibroblast or the fibroblast-like cell.
91 . The method of claim 90 , wherein the mutation is in a cell cycle gene, an oncogene, a metabolic gene, or a combination thereof.
92 . The method of claim 76 , further comprising contacting the fibroblast or the fibroblast-like cell with medium comprising:
a) L-ascorbic acid 2-phosphate or a pharmaceutically acceptable salt thereof;
b) Transforming Growth Factor beta 1 or a biologically active fragment thereof; or
c) a combination thereof.
93 . An artificial dermal layer comprising:
a) a bovine fibroblast or bovine fibroblast-like cell, wherein the bovine fibroblast or the bovine fibroblast-like cell comprises an exogenous polynucleotide;
b) a scaffold, wherein the bovine fibroblast or the bovine fibroblast-like cell is at least partially in contact with the scaffold, and wherein the scaffold comprises a rayon;
c) an extracellular matrix, wherein the extracellular matrix comprises collagen type I, collagen type III, or a combination thereof; and
d) an at least partially decellularized cell layer.
94 . The artificial dermal layer of claim 93 , wherein the exogenous polynucleotide encodes:
a) an SV40 large T antigen (SV40-TAg) polypeptide or a biologically active fragment thereof; or
b) a telomerase (TERT) protein or a biologically active fragment thereof.
95 . The artificial dermal layer of claim 94 , wherein the exogenous polynucleotide encodes the telomerase (TERT) protein or the biologically active fragment thereof.