Myc but not Fos rescue of PDGF signalling block caused by kinase-inactive Src

M. Vittoria Barone, Sara A. Courtneidge

Research output: Contribution to journalArticlepeer-review

283 Scopus citations


Growth factors such as platelet-derived growth factor (PDGF) elicit the transcriptional activation of a large number of immediate early genes (many of which encode transcription factors), and ultimately DNA synthesis1. Both API and Myc are activated in fibroblasts in response to growth factor stimulation2–5, and various experiments suggest their importance in proliferation6‑10. Src family kinases are required for PDGF (and other growth factors) to induce DNA synthesis11,12. We have examined which transcription factors, when constitutively expressed, 'rescue' the block elicited by dominant negative Src. We report here that Myc, but not Fos and/or Jun, was able to rescue the block. In contrast, Fos and Jun, but not Myc, rescued the block induced by dominant negative Ras. Our data suggest that Src kinases control the transcriptional activation of Myc.

Original languageEnglish (US)
Pages (from-to)509-512
Number of pages4
Issue number6556
StatePublished - Nov 30 1995
Externally publishedYes

ASJC Scopus subject areas

  • General


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