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Article type: Research Article
Authors: Chen, Yan | Ye, Xiabin* | Xia, Xuemei | Lin, Xuefang
Affiliations: Department of Gynaecology and Obstetrics, Lishui People’s Hospital, The Sixth Affiliated Hospital of Wenzhou Medical University, The First Affiliated Hospital of Lishui University, Lishui, Zhejiang, China
Correspondence: [*] Corresponding author: Xiabin Ye, Department of Gynaecology and Obstetrics, People’s Hospital of Lishui, The Sixth Affiliated Hospital of Wenzhou Medical University, The Affiliated Hospital of Lishui College, 15 Dazhong Street, Liandu District, Lishui, Zhejiang 323000, China. Tel.: +86 5782780103; E-mail: jieqiangbianz3@163.com.
Abstract: OBJECTIVE: This study aimed to explore the correlation of circular RNA ABCB10 (circ-ABCB10) expression with clinicopathological features and survival, as well as its impact on regulating cell proliferation and apoptosis in epithelial ovarian cancer (EOC). METHODS: A total of 103 EOC patients were consecutively recruited, then their tumor tissues were obtained for circ-ABCB10 detection using qRT-PCR. Additionally, 53 EOC adjacent tissues were collected as control. Patients’ clinicopathological and survival data were recorded. In vitro, circ-ABCB10 expression was detected in OVCAR3, UWB1.289, SKOV3, CAOV3 and IOSE80 cell lines by RT-qPCR, and the effect of circ-ABCB10 on cell proliferation and apoptosis was detected through circ-ABCB10 overexpression and silencing by plasmids transfection into SKOV3 cells. RESULTS: Circ-ABCB10 was upregulated in tumor tissues compared with adjacent tissues, and presented with good value in distinguishing tumor tissues from adjacent tissues (AUC = 0.766, 95% CI: 0.690–0.842). Circ-ABCB10 high expression was correlated with poor differentiation, large tumor size and advanced International Federation of Gynecology and Obstetrics (FIGO) stage in EOC patients. As for survival, circ-ABCB10 was correlated with worse OS. In vitro experiments revealed that circ-ABCB10 was upregulated and promoted cell proliferation but reduced cell apoptosis, and negatively regulated miR-1271, miR-1252 and miR-203 in EOC cells. CONCLUSIONS: Circ-ABCB10 correlates with advanced clinicopathological features and unfavorable survival, and promotes proliferation, reduces apoptosis and negatively regulated miR-1271, miR-1252 and miR-203 in EOC.
Keywords: Circ-ABCB10, EOC, disease risk, OS, cell proliferation and apoptosis
DOI: 10.3233/CBM-190064
Journal: Cancer Biomarkers, vol. 26, no. 2, pp. 151-161, 2019
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