The Brigham and Women's Hospital, Inc.

Afshin Ehsan

Victor J Dzau

Michael J Mann

Richard E Pratt

Daniel P Griese

A method for implanting cells onto a prosthesis includes the steps of: (a) providing a prosthesis including a porous tube, where at least 25% of the pores on the inner surface of the tube have diameters of more than about 40 &mgr;m, at least 25% of the pores on the outer surface of the tube have diameters of less than about 30 &mgr;m, and the tube includes a substantially continuous layer of a biocompatible material; (b) contacting the prosthesis with a suspension of cells; and (c) providing a pressure differential between the inner surface and the outer surface, whereby the cells are retained in the pores of the inner surface. A method for obtaining an endothelial cell culture from a blood sample involved:(a) obtaining a sample for mononuclear cells from a blood sample; and (b) culturing the sample of mononuclear cells, without further cell separation, on a cell adhesive polymer-coated solid support in the presence of endothelial growth factors.

Methods for implanting cells

Disclosed herein is a method for implanting cells onto a prosthesis, including the steps of: (a) providing a prosthesis including a porous tube, where at least 25% of the pores on the inner surface of the tube have diameters of more than about 40 &mgr;m, at least 25% of the pores on the outer surface of the tube have diameters of less than about 30 &mgr;m, and the tube includes a substantially continuous layer of a biocompatible material; (b) contacting the prosthesis with a suspension of cells; and (c) providing a pressure differential between the inner surface and the outer surface, whereby the cells are retained in the pores of the inner surface. Also disclosed herein are methods for culturing cells for implantation.

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Boston, MA, United States of America

Afshin Ehsan