Implantation of cell-matrix structure adjacent mesentery, omentu

Details Implantation of cell-matrix structure adjacent mesentery, omentu Implantation of cell-matrix structure adjacent mesentery, omentu

1994-02-28

1998-09-08

Naff, David M.

Drug, bio-affecting and body treating compositions

Whole live micro-organism, cell, or virus containing

Animal or plant cell

424422, 424426, 424486, 424548, 424549, 435177, 435178, 435180, 435181, 435395, 435398, 435402, C12N 1108, C12N 500, A61F 228, A61F 218

Patent

active

058041788

ABSTRACT:
A matrix structure containing attached cells such as endocrine cells, fibroblasts, endothelial cells or genitourinary cells is implanted in a patient adjacent tissue having a high surface area and vasculature such as mesentery, omentum or peritoneum tissue. Large volumes of cells can be attached to the matrix and the matrix implanted with minimum trauma and blood loss into a patient to produce a functional organ equivalent. Multiple matrix structures containing cells can be implanted to functionally resemble naturally occurring organs. Implanting multiple matrices between folds of the mesentery is particularly well suited for growth of endocrine structures, including liver, pancreas, and adrenal gland. The matrix structure is preferably formed from a biodegradable artificial polymer. Collagen and non-biodegradable materials can also be used, and the matrix structure can be overlaid with a material that enhances cell attachment. Materials such as angiogenesis factors can be incorporated into a matrix and implanted prior to implanting the matrix containing cells or the materials can be incorporated into the matrix containing cells. Cells attached to the matrix may be cultured in vitro prior to implanting. Matrix structures containing different types of cells can be implanted juxtapositioned with each other.

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