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Regulation And Targeting Of Fyn In Human Cutaneous Squamous Cell Carcinoma, Sarah Fenton
Regulation And Targeting Of Fyn In Human Cutaneous Squamous Cell Carcinoma, Sarah Fenton
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Fyn, a member of the Src family kinases, is an oncogene in murine epidermis and is associated with cell-cell adhesion turnover and migration. Introduction of active H-Ras(G12V) into the HaCaT human keratinocyte cell line resulted in upregulation of FYN mRNA (200-fold) and protein, but did not increase the expression of other SFKs. We identified two nucleotides 74 bases upstream of the human FYN gene transcription start site as necessary for FYN upregulation in HaCaT-Ras cells. Further studies identified Lef-1 as the transcription factor most likely binding to this site and mediating FYN upregulation.
Transduction of active Ras or Fyn was …