Τρίτη 26 Δεκεμβρίου 2017

DCLK1 Promotes Epithelial-Mesenchymal Transition via the PI3K/Akt/NF-κB Pathway in Colorectal Cancer

Abstract

Double cortin-like kinase 1 (DCLK1) plays important roles during the epithelial-mesenchymal transition (EMT) process in human colorectal cancer (CRC). However, the role of DCLK1 in regulating the EMT of CRC is still poorly understood. In this study, we report evidence that DCLK1 acts as a potent oncogene to drive its extremely malignant character of EMT in an NF-κB-dependent manner in CRC cells. Mechanistic investigations showed that DCLK1 induced the NF-κBp65 subunit expression through the PI3K/Akt/Sp1 axis and activated NF-κBp65 through the PI3K/Akt/IκBα pathway during the EMT of CRC cells. Moreover, we found that silencing the expression of DCLK1 inhibited the invasion and metastasis of CRC cells in vivo. Collectively, our findings identify DCLK1 as a pivotal regulator of an EMT axis in CRC, thus implicating DCLK1 as a potential therapeutic target for CRC metastasis. This article is protected by copyright. All rights reserved.



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