EDAG-1 promotes proliferation and invasion of human thyroid cancer cells by activating MAPK/Erk and AKT signal pathways.

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EDAG-1 promotes proliferation and invasion of human thyroid cancer cells by activating MAPK/Erk and AKT signal pathways.

Cancer Biol Ther. 2016 Mar 2;:0

Authors: Chen DL, Hu ZQ, Zheng XF, Wang XY, Xu YZ, Li WQ, Fang HS, Kan L, Wang SY

Abstract
Erythroid differentiation-associated gene (EDAG) is differentially expressed in normal hematopoietic progenitor/stem cells and a variety of embryonic tissues. High EDAG-1 expression is also found in human thyroid cancer cells and peripheral blood of patients with leukemia, but its functional significance was unclear. Current study aims to further clarify the expression pattern of EDAG-1 and tests its roles in proliferation and invasion of human thyroid cancer cells in vitro and in vivo. To this end, we have performed gain-of-function and loss-of-function studies to clarify how EDAG-1 regulates the proliferation, invasion, and adhesion ability of human thyroid cancer cells SW579cells. We found that overexpression of EDAG-1 promoted the proliferation, invasion, and adhesion of human thyroid cancer cells, whereas silencing of EDAG-1 reversed all these changes and reduced the tumorigenesis risk of nude mice. Mechanistically, we found that overexpression of EDAG-1 activated the MAPK/Erk and AKT signal pathways. These findings provide novel insights of the role of EDAG-1 in thyroid tumors, and may have direct clinical implication.

PMID: 26934676 [PubMed - as supplied by publisher]

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