Open AccessInvolvement of a novel circularRNA, hsa_circ_0000520, attenuates tumorigenesis of cervical cancer cell through competitively binding with miR‐146b‐3p
Author(s) -
Zhang Jinling,
Cai Ruyu,
Zhang Yifan,
Wang Xiaoyu
Publication year - 2020
Publication title -
journal of cellular and molecular medicine
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.44
H-Index - 130
eISSN - 1582-4934
pISSN - 1582-1838
DOI - 10.1111/jcmm.15414
Subject(s) - carcinogenesis , in vivo , cancer research , in vitro , cell growth , apoptosis , cell , pax5 , microrna , pathogenesis , biology , microbiology and biotechnology , chemistry , gene , transcription factor , immunology , genetics
The implication of circular RNAs (circRNAs) in the pathogenesis of human cervical cancer (CC) has been demonstrated by numerous of researches, nevertheless, the whole regulatory network of circRNAs in CC remains unclear. In the present study, two GSE data sets (GSE113696 and GSE102686) were enrolled to analysed different expressed circRNA. We found that hsa_circ_0000520(circ_0000520) was decreased in CC tissues and cell lines. Functional studies indicated circ_0000520 overexpression in vitro repressed CC cell proliferation, invasion and migration, while promoted CC cell apoptosis. Moreover, circ_0000520 overexpression in vivo repressed CC tumour growth. Mechanismly, circ_0000520 and PAX5 were revealed to directly bind to miR‐146b‐3p, and circ_0000520 could indirectly regulate PAX5 by sponging miR‐146b‐3p. In conclusion, c irc_0000520 repressed CC progression in vitro and in vivo by sponging miR‐146b‐3p to release PAX5.