Defined culture conditions of human embryonic stem cells
First Claim
1. A culture medium for the maintenance and proliferation of substantially undifferentiated stem cells, wherein said culture medium comprises a basal medium, a protein comprising a member of the tumor necrosis factor (TNF) family, a protein comprising a member of the Wnt family, a protein comprising insulin, a protein comprising transferrin and a protein comprising fibroblast growth factor (FGF), wherein a population of substantially undifferentiated stem cells cultured in said culture medium proliferates while maintaining a substantially undifferentiated state for at least about 4 passages.
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Accused Products
Abstract
The present invention relates to compositions and methods for culturing stem cells, particularly embryonic stem cells. Specifically, the invention relates to a culture medium that supports proliferation of substantially undifferentiated stem cells, while maintaining potency of the cells. An an embodiment, the culture medium is defined and supports proliferation of substantially undifferentiated embryonic stem cells in essentially serum free and feeder cell free conditions. Compositions for making the medium and methods using the culture medium are also provided.
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Citations
11 Claims
- 1. A culture medium for the maintenance and proliferation of substantially undifferentiated stem cells, wherein said culture medium comprises a basal medium, a protein comprising a member of the tumor necrosis factor (TNF) family, a protein comprising a member of the Wnt family, a protein comprising insulin, a protein comprising transferrin and a protein comprising fibroblast growth factor (FGF), wherein a population of substantially undifferentiated stem cells cultured in said culture medium proliferates while maintaining a substantially undifferentiated state for at least about 4 passages.
Specification