Abstract
Radiotherapy is widely used for advanced rectal tumors. However, refractory metastasis has become the major cause of therapy failure in rectal cancer patients. Understanding the molecular mechanism that controls the aggressive cellular response to this treatment is essential for developing new therapeutic applications and improving radiotherapy response in colorectal cancer patients. Using the progeny of cells that were submitted to irradiation, we have demonstrated that the PI3K/AKT, Wnt/β-catenin signaling pathways as well as ERK1/2 downstream of EPHA4 receptor activation, play an important role in the regulation of events related with the EMT development, which may be associated with the therapeutic failure in rectal cancer after radiotherapy. Here, we further discuss about EphA4 receptor as a potential therapeutic target for the treatment of this cancer type. J. Cell. Biochem. 118: 442-445, 2017. © 2016 Wiley Periodicals, Inc.
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