CRCT1 Regulated by MicroRNA-520 g Inhibits Proliferation and Induces Apoptosis in Esophageal Squamous Cell Cancer

Overview

Journal Tumour Biol

Publisher Sage Publications

Specialty Oncology

Date 2016 Jan 1

PMID 26718216

Citations 13

Authors

Ning Wu

Yang Song

Liewen Pang

Zhiming Chen

Affiliations

Soon will be listed here.

Abstract

Cysteine-rich C-terminal 1 (CRCT1) is encoded by the epidermal differentiation complex (EDC), a gene cluster that was recently linked to esophageal cancer. However, the role of CRCT1 in esophageal squamous cell cancer (ESCC) and the underlying mechanism remain unclear. In the present study, we show that CRCT1 is downregulated in ESCC in association with TNM stage and lymph node metastasis. Restoring CRCT1 in ESCC cells by lentivirus-mediated gene transfer inhibited cell proliferation and xenograft tumor formation. CRCT1 overexpression promoted ESCC cell apoptosis and upregulated the expression of apoptosis-related proteins. CRCT1 expression was inversely correlated with the levels of microRNA-520 g (miR-520 g) in ESCC tissues, and CRCT1 was identified as a direct target gene of miR-520 g in ESCC cells. Consistent with the effects of CRCT1 overexpression, knockdown of miR-520 g inhibited growth and induced apoptosis in ESCC cells. Our results suggest that CRCT1 functions as a tumor suppressor gene in ESCC and is regulated by miR-520 g, providing potential therapeutic targets for the treatment of ESCC.

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