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Long non-coding RNA ARAP1-AS1 promotes the proliferation and migration in cervical cancer through epigenetic regulation of DUSP5.

Authors
  • Min, Han1
  • He, Wenjing2
  • 1 Department of Obstetrics and Gynecology, Mianyang Central Hospital , Mianyang, Sichuan, China. , (China)
  • 2 Department of Gynecology, Sichuan Academy of Medical Science and Sichuan Provincial People's Hospital , Chengdu, Sichuan, China. , (China)
Type
Published Article
Journal
Cancer Biology & Therapy
Publisher
Landes Bioscience
Publication Date
Oct 02, 2020
Volume
21
Issue
10
Pages
907–914
Identifiers
DOI: 10.1080/15384047.2020.1806641
PMID: 32985327
Source
Medline
Keywords
Language
English
License
Unknown

Abstract

Emerging reports have indicated that long non-coding RNAs (lncRNAs) play pivotal roles in multiple cancers, containing cervical cancer. LncRNA ARAP1 antisense RNA 1 (ARAP1-AS1) was previously identified as a tumor-promoter in bladder cancer. However, the expression profile and possible modulation mechanism of ARAP1-AS1 in cervical cancer need to be further studied. In the current research, ARAP1-AS1 was discovered to exhibit a high level in cervical cancer cells. Besides, the knockdown of ARAP1-AS1 repressed cell proliferative and migratory capacities in cervical cancer, as detected by loss-of-function assays including CCK-8, EdU, colony formation, and transwell assays. Additionally, dual-specificity phosphatase 5 (DUSP5), lowly expressed in cervical cancer cells, was found to be negatively modulated by ARAP1-AS1. In subsequence, mechanism experiments proved that ARAP1-AS1 recruited enhancer of zeste 2 polycomb repressive complex 2 subunit (EZH2) to regulate DUSP5 expression. Finally, rescue assays certified the oncogenic function of ARAP1-AS1/EZH2/DUSP5 axis in cervical cancer. This research probed the expression level and regulatory mechanism of ARAP1-AS1 underlying cervical cancer, which might shed novel lights into the exploration on cervical cancer treatment.

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