Title : TGF-beta autocrine loop regulates cell growth and myogenic differentiation in human rhabdomyosarcoma cells.

Pub. Date : 2000 Jun

PMID : 10834937






6 Functional Relationships(s)
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1 We show that TPA inhibits the activation of secreted latent TGF-beta, thus decreasing the concentration of active TGF-beta to which the cells are exposed. Tetradecanoylphorbol Acetate transforming growth factor beta 1 Homo sapiens
2 We show that TPA inhibits the activation of secreted latent TGF-beta, thus decreasing the concentration of active TGF-beta to which the cells are exposed. Tetradecanoylphorbol Acetate transforming growth factor beta 1 Homo sapiens
3 In contrast, a reduction in the TGF-beta concentration, to a range of 0.14-0.20 x 10(-2) ng/ml (which is similar to that measured in TPA-treated cells), mimics TPA-induced differentiation. Tetradecanoylphorbol Acetate transforming growth factor beta 1 Homo sapiens
4 In contrast, a reduction in the TGF-beta concentration, to a range of 0.14-0.20 x 10(-2) ng/ml (which is similar to that measured in TPA-treated cells), mimics TPA-induced differentiation. Tetradecanoylphorbol Acetate transforming growth factor beta 1 Homo sapiens
5 By impairing the TGF-beta autocrine loop, TPA stabilizes the factor concentration within the range compatible for differentiation to occur. Tetradecanoylphorbol Acetate transforming growth factor beta 1 Homo sapiens
6 In contrast, in human primary muscle cells a much higher concentration of exogenous TGF-beta is required for the differentiation inhibitory effect and TPA inhibits differentiation in these cells probably through a TGF-beta independent mechanism. Tetradecanoylphorbol Acetate transforming growth factor beta 1 Homo sapiens