Long Non-coding RNA ZFAS1 Sponges MiR-484 to Promote Cell Proliferation and Invasion in Colorectal Cancer

Overview

Journal Cell Cycle

Specialty Cell Biology

Date 2017 Nov 29

PMID 29179614

Citations 47

Authors

Shuping Xie

Quanxing Ge

Xueyan Wang

Xinfang Sun

YuHua Kang

Affiliations

Soon will be listed here.

Abstract

The incidence and mortality rate of colorectal cancer (CRC) have been significantly increasing. However, mechanisms involved in CRC progression are still unclear. LncRNA ZFAS1 has been verified as oncogenic molecular in a series of tumors, including CRC. However, the underlying mechanism of ZFAS1 in CRC carcinogenesis remains unclear. In the present study, our data showed that ZFAS1 expression was significantly upregulated in CRC tissues and cell lines. Correlation analysis showed that high ZFAS1 expression was significantly associated with Helicobacter pylori infection, lymph nodes metastasis, advanced TNM stage and poor overall survival of CRC patients. Loss-of-function experiments revealed that ZFAS1 inhibition could markedly suppress CRC cells proliferation and invasion both in vitro and in vivo. Bioinformatics analysis and luciferase reporter assay revealed that ZFAS1 directly interacted with miR-484. Rescue experiments showed that miR-484 inhibitor reversed the tumor suppressing roles of ZFAS1 knockdown on CRC cells. Therefore, our study suggested that ZFAS1 could act as an oncogene in CRC tumorigenesis, and discovered the functional regulatory pathway of ZFAS1 sponging miR-484.

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