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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)

Interaction of basic fibroblast growth factor ( FGF-2) with nonresponsive HeLa cells.

Human HeLa adenocarcinoma cells did not respond to basic fibroblast growth factor (bFGF or FGF-2) but did bind the same amount of bFGF as responsive Chinese hamster lung fibroblasts (CCL 39). Heparinase II treatment of HeLa and CCL 39 cells resulted in a decrease of bFGF binding by 96 and 57%, respectively, indicating that heparan sulfate molecules were involved in bFGF binding. On HeLa cells, bFGF bound to a single family of low-affinity sites. Cross-linking experiments of 125I-bFGF to HeLa cells yielded several labeled complexes. Cell-associated 125I-bFGF was internalized in both cell types either by high-affinity receptors and heparitinase-sensitive sites in CCL 39 cells or by heparitinase-sensitive binding sites only in HeLa cells. The binding of bFGF to nonresponsive HeLa cells and its internalization via a family of heparitinase-sensitive binding sites might illustrate other functions of bFGF unrelated to cell proliferation.[1]


  1. Interaction of basic fibroblast growth factor (FGF-2) with nonresponsive HeLa cells. Gannoun-Zaki, L., Pieri, I., Badet, J., Barritault, D. Exp. Cell Res. (1994) [Pubmed]
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