• Yanbo Zhang, Xuefeng Wang, Shangzhi Han, Yangyang Wang, Rui Liu, Fanli Meng, Zhejun Su, and Feng Huo.
• Department of Stomatology, Chengde Medical University Affiliated Hospital, Chengde, Hebei, China.
• J. Investig. Med. 2021 Feb 1; 69 (2): 377-381.

AbstractPrevious studies have reported that as the main extract of areca nut, arecoline (ARE) causes DNA damage and in turn contributes to the carcinogenesis of oral epithelial cells. It has been reported that ARE can inhibit the expression of miR-886-3p. In the current study, we aimed to explore the expression and biological functions of miR-886-3p in oral squamous cell carcinoma (OSCC). Herein, we demonstrated that in OSCC cells treated with ARE, the expression level of miR-886-3p was negatively correlated with the concentration of ARE. Compared with adjacent tissue, the expression level of miR-886-3p in OSCC tissue was remarkably downregulated. Transfection of miR-886-3p mimics markedly decreased viability, migration and invasion of OSCC cells. These experimental data implied that miR-886-3p suppression mediated by ARE took part in the proliferation and metastasis of OSCC. This study can help elucidate the mechanism by which areca nut chewing contributes to the malignant transformation of oral epithelial cells.© American Federation for Medical Research 2021. No commercial re-use. See rights and permissions. Published by BMJ.

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