Patent ID: 6224912
Filing Date: 2001-05-01
Classification: A61K,A61P,C12N

Abstract:
A composition useful in suppressing proliferation of cancer cells, said composition produced by entrapping a sample of cancer cells in a biocompatible, selectively-permeable structure, culturing said cancer cells entrapped in said structure in culture medium, wherein growth of said cancer cells is restricted by entrapment in said structure, to produce a cancer-cell proliferation suppressing material having a molecular weight of at least about 30 kd which suppresses proliferation of cancer cells, filtering the culture medium through a filter which separates material having a molecular weight of at least about 30 kd from material having a molecular weight of less than 30 kd; and recovering said cancer-cell proliferation suppressing material having a molecular weight of at least about 30 kd.