Low-expression of TMEM100 is Associated with Poor Prognosis in Non-small-cell Lung Cancer

Overview

Journal Am J Transl Res

Specialty General Medicine

Date 2017 Jun 1

PMID 28560005

Citations 20

Authors

Zhitao Han

Ting Wang

Shuai Han

Yuanming Chen

Tianrui Chen

Qi Jia

Bo Li

Binbin Li

Jing Wang

Guanghui Chen

Ge Liu

Haiyi Gong

Haifeng Wei

Wang Zhou

Tielong Liu

Jianru Xiao

Affiliations

Soon will be listed here.

Abstract

Transmembrane protein 100 (TMEM100) was first identified as a transcript from the mouse genome. Recent studies have demonstrated that TMEM100 is involved in hepatocellular carcinoma (HCC) malignancy. However, the distribution and clinical significance of TMEM100 in non-small-cell lung carcinoma (NSCLC) remains poorly understood. This study aims to explore the significance of TMEM100 expression in NSCLC. We found that TMEM100 expression was significantly reduced in NSCLC tissues when compared with that in adjacent normal lung tissues (P<0.001). Kaplan-Meier survival analysis showed that overall survival of patients with lower expressions of TMEM100 was significantly shorter (n=152, P<0.05). In addition, TMEM100 overexpression in NSCLC cell lines inhibited cell proliferation in vitro and in vivo. Transwell migration and invasion assay showed that TMEM100 significantly suppressed the migration and invasion of NSCLC cell lines. In contrast, knocking down TMEM100 promoted NSCLC proliferation and migration. Finally, we found that TMEM100 worked as a cancer suppressor gene mainly by inhibiting the TNF signaling pathway. In conclusion, TMEM100 acted as a tumor suppressor in NSCLC and may prove to be a potential prognostic biomarker and therapeutic target for NSCLC.

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