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Lung cancer has been proved to be one of the most common kinds of cancers around the globe. Meanwhile, as the predominant type of lung cancer, lung adenocarcinoma (LUAD) has received increasing attention in cancer research. Long noncoding RNAs (lncRNAs) are known to be associated with oncogenesis and progression of various cancers. However, many lncRNAs have not been thoroughly detected in LUAD. In this study, through bioinformatics analysis we found that zinc finger protein multitype 2 antisense RNA 1 (ZFPM2-AS1) was associated with poor prognosis of LUAD patients. Also, ZFPM2-AS1 was detected to be overexpressed in LUAD tissues and cells. Furthermore, ZFPM2-AS1 could promote the proliferation of LUAD cells. Next, miR-18b-5p was found to bind with and negatively regulated by ZFPM2-AS1. VMA21, target gene of miR-18b-5p, could bind with and be negatively regulated by miR-18b-5p. More importantly, both ZFPM2-AS1 and VMA21 were found to be attached to the RNA-induced silencing complex constructed from miR-18b-5p and Ago2. Also, ZFPM2-AS1 could regulate the expression of VMA21. Therefore, ZFPM2-AS1 were confirmed to regulate VMA21 by competitively binding with miR-18b-5p. Finally, rescue assays confirmed that ZFPM2-AS1 could regulate LUAD cell proliferation via miR-18b-5p/VMA21 axis. © 2019 Wiley Periodicals, Inc.


Min Xue, Weimin Tao, Suyun Yu, Zhijun Yan, Qing Peng, Fan Jiang, Xiwen Gao. lncRNA ZFPM2-AS1 promotes proliferation via miR-18b-5p/VMA21 axis in lung adenocarcinoma. Journal of cellular biochemistry. 2020 Jan;121(1):313-321

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PMID: 31297866

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