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Long Non-Coding RNA TMPO-AS1 Promotes Cervical Cancer Cell Proliferation, Migration, and Invasion by Regulating miR-143-3p/ZEB1 Axis

Authors Gang X, Yuan M, Zhang J

Received 7 August 2019

Accepted for publication 22 December 2019

Published 3 March 2020 Volume 2020:12 Pages 1587—1599


Checked for plagiarism Yes

Review by Single anonymous peer review

Peer reviewer comments 3

Editor who approved publication: Professor Harikrishna Nakshatri

Xiaoqing Gang, Mengmeng Yuan, Juxin Zhang

Department of Gynecology, Henan Provincial People’s Hospital, Zhengzhou University People’s Hospital, Zhengzhou 450003, Henan, People’s Republic of China

Correspondence: Juxin Zhang
Department of Gynecology, Henan Provincial People’s Hospital, Zhengzhou University People’s  Hospital, No. 7 Weiwu Road, Jinshui District, Zhengzhou, Henan 450003, People’s Republic of China
Tel +86-138 3818 4667

Objective: Long non-coding RNAs (lncRNAs) have been identified as important players in tumorigenesis. LncRNA TMPO antisense RNA 1 (TMPO-AS1) has been shown to be involved in several tumors. However, the functional role and the underlying mechanism of TMPO-AS1 in regulating cervical cancer cell behavior remain unclear.
Materials and Methods: Expression of TMPO-AS1, miR-143-3p, and ZEB1 were examined by qRT-PCR and Western blot. Cell proliferation, migration and invasion were evaluated using CCK-8 assay and Transwell migration and invasion assays, respectively. Luciferase reporter assay was performed to investigate the interaction miR-143-3p and TMPO-AS1 or ZEB1.
Results: TMPO-AS1 was highly expressed in cervical cancer cells. Furthermore, TMPO-AS1 overexpression significantly promoted C-33A cell proliferation, migration, and invasion. In contrast, TMPO-AS1 silencing inhibited SiHa cell proliferation, migration, and invasion. Mechanistically, TMPO-AS1 acted as a sponge of miR-143-3p to elevate expression of zinc finger E-box binding homeobox 1 (ZEB1), a target of miR-143-3p, and thereby promoted C-33A cell proliferation, migration, and invasion. Further assays showed that TMPO-AS1 knockdown inhibited cervical cancer cell tumorigenesis in vivo.
Conclusion: TMPO-AS1 promotes cervical cancer cell proliferation, migration, and invasion by regulating the miR-143-3p/ZEB1 axis.

Keywords: cervical cancer, TMPO-AS1, miR-143-3p, ZEB1

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