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AssigneeGenzyme Corporation
InventorsJohn M. McPherson, Peter C. Yaeger, Marie E. Brown, James G. Hanlon, Francois Binette
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One object of the present invention is based upon the development and use of a serum-free defined cell culture medium comprising a supplement mixture, a component mixture, a vitamin mixture, an inorganic salt mixture and amino acid mixture that avoids the problems inherent in the use of serum. In particular, the defined medium is useful in culturing fibroblasts, especially chondrocytes. Another object of the present invention is to claim a method of enhancing the differentiation of chondrocytes and enhancing the synthesis of a cartilage specific matrix using tumor growth factor beta (TGF-.beta.). Another object of the present invention is to claim a method of enhancing the differentiation of chondrocytes using the combination of TGF-.beta.and IGF.
A method for enhancing the rate of re-differentiation of passaged, de-differentiated, human articular chondrocytes, comprising the step of culturing said passaged, de-differentiated chondrocytes in a medium supplemented with TGF-.beta. and a growth factor selected from the group consisting of:
A composition comprising passaged, de-differentiated human articular chondrocytes in a medium supplemented with TGF-.beta. and a growth factor selected from the group consisting of:
Dependencies are inferred from the claim text.