The Regulatory Role of circRNA_101308 in Cervical Cancer and the Prediction of Its Mechanism
Authors Jiao J, Jiao X, Liu Q, Qu W, Ma D, Zhang Y, Cui B
Received 24 December 2019
Accepted for publication 31 May 2020
Published 22 June 2020 Volume 2020:12 Pages 4807—4815
Checked for plagiarism Yes
Review by Single-blind
Peer reviewer comments 4
Editor who approved publication: Professor Harikrishna Nakshatri
Jun Jiao,1 Xinlin Jiao,1 Qingqing Liu,1 Wenjie Qu,1 Daoxin Ma,2 Youzhong Zhang,1 Baoxia Cui1
1Department of Obstetrics and Gynecology, Qilu Hospital, Shandong University, Jinan 250012, People’s Republic of China; 2Hematology Oncology Center, Qilu Hospital, Shandong University, Jinan 250012, People’s Republic of China
Correspondence: Baoxia Cui Tel +8618560081862
Purpose: Accumulating evidence indicates that circular RNAs (circRNAs) are closely involved in canceration and cancer progression. However, the role of circRNAs in cervical cancer (CC) is largely unknown. Here, we characterized the role of circRNA_101308 in CC.
Materials and Methods: The expression of circRNA_101308 in CC tissues was measured by quantitative reverse transcription-polymerase chain reaction (qRT-PCR). Then, circRNA_101308 was overexpressed in CC cells to detect its function by proliferation and apoptosis assays, Transwell assays and animal experiments. The potential mechanism of circRNA_101308 in CC was explored by RNA pull-down, Gene Ontology (GO) and pathway analyses.
Results: CircRNA_101308 was significantly downregulated in CC tissues. The level of circRNA_101308 was much lower in CC patients with lymph node metastasis or deep myometrial invasion compared to those patients without lymph node metastasis and superficial myometrial invasion. CircRNA_101308 overexpression inhibited CC cell proliferation, invasion and migration. MiR-26a-5p, miR-196a-5p, miR-196b-5p, miR-335-3p, and miR-1307-3p were found to be sponged by circRNA_101308 in CC cells. Further, GO and pathway analyses predicted the potential functional processes and pathways of circRNA_101308 in CC.
Conclusion: CircRNA_101308 is downregulated and acts as a tumor suppressor in CC. CircRNA_101308 can participate in many different processes by sponging different miRNAs in CC cells. This exploration of circRNA_101308 provides new directions for research on cancer development and the clinical treatment of CC.
Keywords: circular RNA, cervical cancer, circRNA_101308, microRNA
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