Abstract
Using the C6 glioma cell as a paradigm, we found that (i) the clonogenicity of C6 cells is several orders of magnitude higher than the percentage of SP cells; (ii) non-SP cells are able to generate SP cells, and conversely SP cells generate non-SP cells; (iii) non-SP sorted cells behave as tumorigenic cells. Hence, in C6 cells cultured in serum-containing medium, SP cells can be generated from non-SP cells. This dynamic equilibrium explains in C6 cells the maintenance of the SP phenotype with cell passaging and demonstrates the existence of tumorigenic non-SP cells.
Publication types
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Research Support, Non-U.S. Gov't
MeSH terms
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ATP Binding Cassette Transporter, Subfamily G, Member 2
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ATP-Binding Cassette Transporters / analysis
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ATP-Binding Cassette Transporters / metabolism
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Animals
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Cell Line, Tumor / metabolism
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Cell Line, Tumor / pathology*
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Cell Transformation, Neoplastic / metabolism
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Cell Transformation, Neoplastic / pathology*
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Clone Cells / metabolism
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Clone Cells / pathology
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Glioma / metabolism
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Glioma / pathology*
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Phenotype
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Rats
Substances
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ATP Binding Cassette Transporter, Subfamily G, Member 2
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ATP-Binding Cassette Transporters
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Abcg2 protein, rat