IMR Press / FBL / Volume 24 / Issue 5 / DOI: 10.2741/4753

Frontiers in Bioscience-Landmark (FBL) is published by IMR Press from Volume 26 Issue 5 (2021). Previous articles were published by another publisher on a subscription basis, and they are hosted by IMR Press on imrpress.com as a courtesy and upon agreement with Frontiers in Bioscience.

Open Access Article
CircRNA_104916 regulates migration, apoptosis and epithelial-mesenchymal transition in colon cancer cells
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1 Department of Anorectal Surgery, Xinyang Central Hospital, Henan Province, 464000, People’s Republic of China
2 Department of Gastrointestinal Surgery, The First Affiliated Hospital of Shantou University Medical College, Shantou, 515041, People’s Republic of China
*Correspondence: 13809290171@163.com (Yongming Zeng)
Front. Biosci. (Landmark Ed) 2019, 24(5), 819–832; https://doi.org/10.2741/4753
Published: 1 March 2019
(This article belongs to the Special Issue Leader sequences of coronavirus are altered during infection)
Abstract

Circular RNAs (circRNAs) are a class of noncoding RNAs that are differentially expressed in tissues with a great potential in regulating the tumorigenesis and metastasis. The COX proportional hazard model predicts that among these, the relative expression of circRNA_104916 and lymphatic metastatic status independently predict the prognosis of patients with cancer. In the present study, we show that circRNA_104916 is downregulated in colorectal cancers as compared to the adjacent normal tissues. The expression of circRNA_104916 is negatively correlated with the tumor size, T stage and lymphatic metastasis. Patients with higher relative circRNA_104916 expression have a better post-operative disease-free survival as compared with those with lower relative expression. Forced expression of circRNA_104916 induces cell apoptosis and G2/M phase arrest by activating apoptosis pathway and cyclin proteins, thereby inhibiting proliferation of colon cancer cell lines, including LoVo and Caco-2. Additionally, overexpression of circRNA_104916 significantly suppresses migration and invasion of tumor cells by inhibiting the epithelial-mesenchymal transition. In conclusion, this study reveals that circRNA_104916 is a potential biomarker and therapeutic target for colorectal cancers.

Keywords
CircRNA_104916
Colorectal cancer
Proliferation
Metastasis
Figures
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