Hybrid matrix implants and explants
First Claim
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1. A method of producing a polypeptide in vitro, comprising:
- providing a composition comprising a body of matrix material comprising insoluble collagen fibrils, there being embedded within the body of matrix material (a) a plurality of cultured vertebrate cells which express the polypeptide and (b) a plurality of microspheres;
maintaining the composition under conditions whereby the cultured vertebrate cells express and secrete the polypeptide;
contacting the composition with a liquid such that the cells secrete the polypeptide into the liquid; and
obtaining the polypeptide from the liquid.
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Abstract
An implantable device having a body of matrix material made up of insoluble collagen fibrils, and disposed therewithin
(a) a plurality of vertebrate cells; and
(b) a plurality of microspheres each of which consists primarily of one or more of the following materials: collagen, polystyrene, dextran, polyacrylamide, cellulose, calcium alginate, latex, polysulfone, or glass.
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Citations
20 Claims
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1. A method of producing a polypeptide in vitro, comprising:
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providing a composition comprising a body of matrix material comprising insoluble collagen fibrils, there being embedded within the body of matrix material (a) a plurality of cultured vertebrate cells which express the polypeptide and (b) a plurality of microspheres;
maintaining the composition under conditions whereby the cultured vertebrate cells express and secrete the polypeptide;
contacting the composition with a liquid such that the cells secrete the polypeptide into the liquid; and
obtaining the polypeptide from the liquid. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification