Title : Disassociation of MAPK activation and c-Fos expression in F9 embryonic carcinoma cells following retinoic acid-induced endoderm differentiation.

Pub. Date : 2001 Aug 24

PMID : 11402055






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1 Disassociation of MAPK activation and c-Fos expression in F9 embryonic carcinoma cells following retinoic acid-induced endoderm differentiation. Tretinoin Fos proto-oncogene, AP-1 transcription factor subunit Homo sapiens
2 We found that retinoic acid treatment inhibited the phosphorylation of Elk-1, a target of activated MAPK required for c-Fos transcription. Tretinoin Fos proto-oncogene, AP-1 transcription factor subunit Homo sapiens
3 Thus, we conclude that retinoic acid treatment to induce F9 cell differentiation uncouples Ras/MAPK activation from c-Fos expression by reduction of Elk-1 phosphorylation through a mechanism not involving the activation of phosphoprotein phosphatase 2B. Tretinoin Fos proto-oncogene, AP-1 transcription factor subunit Homo sapiens