Epidermal growth factor stimulates transcription of the c-jun proto-oncogene in rat fibroblasts
- PMID: 3136398
- DOI: 10.1038/334538a0
Epidermal growth factor stimulates transcription of the c-jun proto-oncogene in rat fibroblasts
Abstract
Some growth factor-induced genes, such as the c-fos gene, are activated rapidly and transiently without intervening protein synthesis. Others, like the rat transin gene, are activated more slowly but more durably and their activation requires prior protein synthesis. It is tempting to speculate that certain rapidly-activated genes code for transcription factors which interact directly with promoter regions of genes like the transin gene to trigger their expression. Unfortunately, little is known about the majority of primary response genes to support this hypothesis. The proto-oncogene c-jun codes for the transcription factor AP-1 or a closely related protein. We show that epidermal growth factor stimulates transcription of the c-jun gene in fibroblasts as a primary response. This supports the notion that increased expression of genes encoding transcription factors is an important element of the signal transduction mechanism, assuring the long-term transcriptional response of cells to growth factors.
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