SERUM-FREE MEDIA AND THEIR USES FOR CHONDROCYTE EXPANSION
First Claim
1. A culture medium comprising a basal medium supplemented with substantially pure oncostatin M (OSM).
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Abstract
The present invention provides defined serum-free cell culture media useful in culturing fibroblasts, especially articular chondrocytes, that avoid problems inherent in the use of serum-containing media. The defined media comprise platelet-derived growth factor (PDGF), chemically defined lipids, oncostatin M (OSM), interleukin-6 (IL-6), leukemia inhibitory factor (LIF), or combinations of these compounds. In another aspect, the present invention also provides tissue culture methods that comprise incubating chondrocytes in the defined serum-free media. The methods enhance attachment and proliferative expansion of chondrocytes seeded at low density while maintaining their redifferentiation potential.
6 Citations
61 Claims
- 1. A culture medium comprising a basal medium supplemented with substantially pure oncostatin M (OSM).
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18. A culture medium comprising:
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(a) cDRFm; (b) 0.1-100 ng/ml PDGF; (c) 0.05-5% CDLM; (d) 0.01-10 ng/ml OSM; and (e) 0.01-10 ng/ml IL-6.
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- 19. A method of culturing cells, comprising the step of incubating the cell with a culture medium comprising a basal medium supplemented with substantially pure OSM.
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49. A method for culturing a chondrocyte, comprising the step of incubating the chondrocyte with a culture medium comprising:
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(a) cDRFm; (b) 0.1-100 ng/ml PDGF; (c) 0.05-5% CDLM; (d) 0.01-10 ng/ml OSM; and (e) 0.01-10 ng/ml IL-6. - View Dependent Claims (52, 55)
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57. A composition comprising a chondrocyte and a culture medium comprising:
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(a) cDRFm; (b) 0.1-100 ng/ml PDGF; (c) 0.05-5% CDLM; (d) 0.01-10 ng/ml OSM; and (e) 0.01-10 ng/ml IL-6.
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58. A culture medium comprising a basal medium supplemented with:
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(a) one or both of substantially pure PDGF and CDLM; and (b) one or more of substantially pure OSM, substantially pure IL-6, and substantially pure LIF. - View Dependent Claims (59, 60, 61)
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Specification