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Circular RNA hsa_circRNA_102958 promotes tumorigenesis of colorectal cancer via miR-585/CDC25B axis

Authors Li R, Wu B, Xia J, Ye L, Yang X

Received 13 April 2019

Accepted for publication 28 June 2019

Published 23 July 2019 Volume 2019:11 Pages 6887—6893


Checked for plagiarism Yes

Review by Single-blind

Peer reviewer comments 2

Editor who approved publication: Dr Sanjeev Srivastava

Rizeng Li,1 BinBin Wu,2 Jianfu Xia,1 Lechi Ye,3 Xiaoping Yang4

1Department of Colorectal Surgery, Wenzhou Central Hospital, Wenzhou 325000, People’s Republic of China; 2Department of General Surgery, The Second People’s Hospital of Pingyang County, Wenzhou 325000, People’s Republic of China; 3Department of Colorectal and Anal Surgery, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000, People’s Republic of China; 4Department of Digestive Medicine, First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000, People’s Republic of China

Purpose: Circular RNAs (circRNAs) are recently identified new noncoding RNAs and play an important role in tumorigenesis. Previous studies have indicated that hsa_circRNA_102958 is a potential diagnostic indicator in gastric cancer. However, its role in colorectal cancer (CRC) is poorly understood.
Methods: qRT-PCR and ISH were used to test gene expression in tissues. Survival rate was analzyed by Kaplan-Meier curve. Luciferase reporter assay was used to determine the interaction between circRNA and miRNA or between miRNA and mRNA. Western blotting was used to test protein expression. CCK8 and colony formation assay was used to analyze proliferation. Transwell assay was used for migration and invasion determination.
Results: In our research, we found that hsa_circRNA_102958 expression was significantly increased in CRC tissues, compared to adjacent normal controls. Increased hsa_circRNA_102958 levels in CRC patients indicated a poor prognosis. The effects of hsa_circRNA_102958 on CRC cell proliferation, migration and invasion were then determined by CCK8, colony formation and Transwell assays. We showed that hsa_circRNA_102958 silencing markedly suppressed CRC growth, migration and invasion. Furthermore, hsa_circRNA_102958 was identified as a sponge for miR-585. We demonstrated that hsa_circRNA_102958 promoted CDC25B expression through inhibiting miR-585 in CRC. Rescue assays illustrated that CDC25B overexpression reversed the suppressive effects of hsa_circRNA_102958 silencing on CRC.
Conclusion: Taken together, our findings revealed the novel oncogenic roles of hsa_circRNA_102958 in CRC through miR-585/CDC25B axis.

Keywords: hsa_circRNA_102958, miR-585, CDC25B, proliferation, invasion

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