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Clinical significance of CMTM4 expression in hepatocellular carcinoma

Authors Bei CH, Zhang Y, Wei RM, Zhu XN, Wang ZG, Zeng W, Chen QY, Tan SK

Received 25 August 2017

Accepted for publication 4 October 2017

Published 14 November 2017 Volume 2017:10 Pages 5439—5443


Checked for plagiarism Yes

Review by Single anonymous peer review

Peer reviewer comments 3

Editor who approved publication: Dr Tohru Yamada

Chunhua Bei,1,* Ying Zhang,1,* Riming Wei,1 Xiaonian Zhu,1 Zhigang Wang,1 Wen Zeng,2 Qiuyue Chen,3 Shengkui Tan1

1Department of Epidemiology and Statistics, School of Public Health, Guilin Medical University, 2Department of Hepatobiliary Surgery, The Affiliated Hospital of Guilin Medical University, 3Department of Pathology, 181st Hospital of Chinese People’s Liberation Army, Guilin, People’s Republic of China

*These authors contributed equally to this work

Abstract: CMTM4 is the most conserved member of chemokine-like factor (CKLF)-like MARVEL transmembrane domain-containing (CMTM) family on chromosome 16q22.1, a locus that harbors a number of tumor-suppressor genes. In previous studies, CMTM4 was reported to be downregulated and exhibited tumor-suppressor activities by regulating cell growth and cell cycle in clear cell renal cell carcinoma. However, its roles in tumorigenesis of hepatocellular carcinoma (HCC) remain poorly studied. This study first investigated the expression of CMTM4 in HCC, and then examined the association between the expression of CMTM4 with the clinicopathological features and prognosis of HCC patients. It was found that CMTM4 was downregulated in HCC tissues, compared with matched adjacent nontumor tissues, as detected by immunohistochemistry. In addition, Kaplan–Meier survival analysis showed that the negative expression of CMTM4 was associated with decreased overall survival rates in patients with HCC. The results of this study suggest CMTM4 plays a role as a tumor suppressor in HCC and CMTM4 negative expression is a risk factor for poor prognosis of HCC.

Keywords: chemokine-like factor-like MARVEL transmembrane domain-containing 4, hepatocellular carcinoma, immunohistochemistry, prognosis

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