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The role of protein kinase-C theta in control of epithelial to mesenchymal transition and cancer stem cell formation #MMPMID26484144
Zafar A; Hardy K; Wu F; Li J; Rao S
Genom Data 2015[Mar]; 3 (ä): 28-32 PMID26484144show ga
The protein kinase C (PKC) activator phorbol 12-myristate 13-acetate (PMA) induces transition of the epithelial MCF-7 cell line to a mesenchymal phenotype. A subset of the resulting mesenchymal cells has surface markers characteristics of a cancer stem cell (CSC) population. We profiled the transcriptome changes associated with the epithelial to mesenchymal transition and those that occurred in the CSC subset. Using a siRNA knockdown strategy, we examined the extent to which these changes were dependent on the PKC family member, PKC-?. The importance of the cytoplasmic signaling role of this kinase is well established and in this study, we have shown by PKC-? ChIP-sequencing analysis that this kinase has a dual role with the ability to also associate with chromatin on a subset of PKC-? dependent genes. In the associated manuscript (Zafar et al., 2014 [5]) we presented evidence for the first time showing that this nuclear role of PKC-? is also important for gene induction and mesenchymal/CSC phenotype. Here we describe the analysis associated with the transcriptome and ChIP-seq data presented in Zafar et al. (2014) [5] and uploaded to NCBI Gene Expression Omnibus (GSE53335).