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. 1990 Feb;87(3):1124–1128. doi: 10.1073/pnas.87.3.1124

Acidic fibroblast growth factor is a modulator of epithelial plasticity in a rat bladder carcinoma cell line.

A M Vallés 1, B Boyer 1, J Badet 1, G C Tucker 1, D Barritault 1, J P Thiery 1
PMCID: PMC53423  PMID: 2153969

Abstract

During normal embryogenesis and neoplastic transformation epithelia change their state of differentiation and degree of cohesiveness. It is thus essential to identify the signals modulating these transitions. We report here that acidic fibroblast growth factor (FGF) induces cells derived from a rat bladder carcinoma to lose their epithelial character and to acquire some properties typical of mesenchymal cells. The structurally related basic FGF did not have such an effect; both factors, however, had a mitogenic activity for these cells. Two distinct populations of receptors for acidic FGF and basic FGF were distinguished by their ligand-binding characteristics. The observations that both acidic and basic FGFs had a mitogenic effect on NBT-II cells and that only acidic FGF caused cell dissociation and dispersion strongly suggest that these two biological activities could be medicated through distinct signaling pathways.

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Selected References

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