Abstract
The growth of mouse myeloma XS 63·5 cells in cell culture is dependent on serum. Among the several growth factors present in serum, the lipid fraction is highly active. The growth factor(s) provided by the serum lipid fraction can be replaced by unsaturated fatty acids. If XS 63·5 cells are cultured in medium that is low in serum lipids, the cells become quiescent, with most of the cells in the G1 (or G0) phase of the cell cycle. Addition of linoleic acid to such quiescent cells leads to reinitiation of DNA synthesis and growth.
Keywords: cell cycle, control of DNA synthesis, serum lipids, unsaturated fatty acids
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Selected References
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