TITLE

Overexpression of eIF3e is correlated with colon tumor development and poor prognosis

AUTHOR(S)
Zhi Li; Shengtao Lin; Tao Jiang; Jingtao Wang; Huijun Lu; Huamei Tang; Mujian Teng; Junwei Fan
PUB. DATE
November 2014
SOURCE
International Journal of Clinical & Experimental Medicine;2014, Vol. 7 Issue 10, p6462
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
EIF3e is a component of the eukaryotic translation initiation factor 3 (eIF-3) complexes, which is an essential factor for initiation of protein synthesis in mammalian cells. Translational control plays key roles in the complex mechanism of cancer development and progression. However, the clinical significance of eIF3e in colon cancer remains to be elucidated. We analyzed the eIF3e expression in a tissue microarray (TMA), which contained 173 colon cancer tissues paired with adjacent normal mucosa and lymph node metastasis. The expression of eIF3e was significantly elevated in colon cancer tissues in comparison with those in adjacent normal mucosa (P < 0.001) and lymph node metastasis (P < 0.001). The high expression of eIF3e in colon cancer was significantly correlated with tumor size (P < 0.001), lymph node involvement (P < 0.001), distant metastasis (P < 0.001), clinical stage (P < 0.001), histopathologic classification (P < 0.001), and vessel invasion (P = 0.036). Univariate and multivariate analysis revealed that eIF3e is an independent prognosis factor for overall survival and disease-free survival in colon cancer. Down-regulation of eIF3e in vitro inhibited colon cancer cell proliferation, clonality and promoted cell apoptosis. Taken together, high eIF3e expression may contribute to tumor progression and predict poor prognosis in colon cancer.
ACCESSION #
99459221

 

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