Is increased resistance of colorectal carcinoma cells to cytotoxic agents caused by the c-Myb-dependent activation of p38MAPK and PI3K/Akt signaling pathways?

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Year of publication 2013
Type Conference abstract
MU Faculty or unit

Faculty of Science

Description Patients with colorectal carcinomas exhibiting upregulated c-Myb expression have poor prognosis. The aim of our study was to clarify the role of c-Myb in control of the cell death/survival of colorectal carcinoma cells treated with cytotoxic agents. We showed by flow cytometric analysis of cell viability that c-Myb reduced sensitivity of colorectal carcinoma cells to cisplatin and doxorubicin. We found increased level of the phosphorylated p38MAPK and Akt kinases in cells overexpressing c-Myb. We used selective inhibitors of these kinases and we found that increased resistance of colorectal carcinoma cells to cisplatin is caused by c-Myb-dependent activation of p38MAPK signaling pathway.
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