MiR-181a Promotes Apoptosis and Reduces Cisplatin Resistance by Inhibiting Osteopontin in Cervical Cancer Cells
Authors: Liping Chen
Zhihua Huang
Yu Zhao
Mingqing Shi
Xiaofei Jiang
Xiaofei Xu
Huifang Zhou
Journal: Cancer Biotherapy and Radiopharmaceuticals (2019)
Discipline: PHARMACOLOGY & TOXICOLOGY
Keywords: DDP; OPN; cervical cancer; drug resistance; miR-181a.
Affiliations: Department of Obstetrics and Gynecology, Lishui Hospital of Traditional Chinese Medicine, Lishui, Zhejiang, China., Department of Gynecology, Xuzhou Hospital of Traditional Chinese Medicine, Xuzhou, Jiangsu, China., Department of Cardiology, Lishui Hospital of Traditional Chinese Medicine, Lishui, Zhejiang, China., Department of Obstetrics and Gynecology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China., Department of Obstetrics and Gynecology, Lishui People's Hospital, Lishui, Zhejiang, China., Department of Gynecology, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, Jiangsu, China.

Abstract:  Objective: In this study, the authors established a cervical cancer cisplatin (DDP) drug-resistant cell line to explore the role of miR-181a in the regulation of osteopontin (OPN) expression and the proliferation, apoptosis, as well as DDP resistance of cervical cancer cells. Materials and Methods: Dual luciferase reporter gene assay was performed to validate the targeted relationship between miR-181a and OPN. The DDP-resistant cell line CaSki/DDP was established to compare the expressions of miR-181a and OPN. The cell proliferation activity was detected by CCK-8 assay. CaSki/DDP cells were divided into miR-NC group and miR-181a mimic group followed by analysis of cell apoptosis by flow cytometry, and the cell proliferation by EdU staining. Results: There was a targeted relationship between miR-181a and OPN mRNA. MiR-181a expression was significantly lower, while OPN mRNA and protein levels were significantly higher in CaSki/DDP cells than that in CaSki cells. Compared with the miR-NC group, OPN mRNA and protein were significantly decreased, cell apoptosis was significantly increased, and cell proliferation ability was significantly attenuated in miR-181a mimic transfection group. Conclusions: The decrease of miR-181a expression and the upregulation of OPN expression are related to the DDP resistance of cervical cancer cells. Overexpression of miR-181a can inhibit the expression of OPN, induce cell apoptosis cells, restrain cell proliferation, and reduce DDP resistance in cervical cancer cells. 

Retracted: Yes

PubPeer comments:
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 Retracted. No date or retraction note, but Abstract now reads  *Cancer Biotherapy and Radiopharmaceuticals* officially retracts the paper entitled, u201cMiR-181a Promotes Apoptosis and Reduces Cisplatin Resistance by Inhibiting Osteopontin in Cervical Cancer Cells,u201d by Xiaofei Xu, Xiaofei Jiang, Liping Chen, Yu Zhao, Zhihua Huang, Huifang Zhou, and Mingqing Shi (Cancer Biother Radiopharm. 2019;34(9)559u2013565; doi: 10.1089 cbr.2019.2858) due to the discovery that the paper was submitted from a paper mill. This is a violation of the journal s standard protocols and is considered an infraction against the rigorous standards of scientific publishing.  The Editor and Publisher of *Cancer Biotherapy and Radiopharmaceuticals* are committed to preserving the scientific literature and the community it serves, and does not tolerate any improprieties. ,