Transforming growth factor beta 1-induced delay of cell cycle progression and its association with growth-related gene expression in mouse fibroblasts

TGF beta-induced cell cycle progression is relatively slower than that induced by EGF or PDGF-BB. Further, TGF beta delays EGF or PDGF-induced 5-phase entry in C3H 10T1/2 mouse fibroblasts. In accordance with this delay, the induction of mRNA level of 'immediate early genes' such as c-myc,...

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Veröffentlicht in:Cancer letters 1993-07, Vol.71 (1-3), p.125-132
Hauptverfasser: Kim, T A, Cutry, A F, Kinniburgh, A J, Wenner, C E
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Sprache:eng
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Zusammenfassung:TGF beta-induced cell cycle progression is relatively slower than that induced by EGF or PDGF-BB. Further, TGF beta delays EGF or PDGF-induced 5-phase entry in C3H 10T1/2 mouse fibroblasts. In accordance with this delay, the induction of mRNA level of 'immediate early genes' such as c-myc, c-fos, c-jun and junB by TGF beta has slower kinetics compared with those of EGF. TGF beta induces c-sis gene, suggesting possible involvement of secondary growth stimulation by PDGF-like proteins. However, anti-PDGF-AB antibody, which was inhibitory to FDGF-BB-induced [3H]thymidine incorporation, did not block TGF beta-induced DNA synthesis. These results first demonstrate that the delay of cell cycle progression by TGF beta is closely associated with the altered regulation of growth-related gene expression in fibroblasts.
ISSN:0304-3835
DOI:10.1016/0304-3835(93)90107-K