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Article type: Research Article
Authors: Yang, Yinga; 1 | Zhang, Zongduanb; 1 | Wu, Zhengzhenga | Lin, Weia | Yu, Mana; *
Affiliations: [a] Department of Ophthalmology, Sichuan Academy of Medical Sciences and Sichuan Provincial People’s Hospital, School of Medicine, University of Electronic Science and Technology of China, Chengdu, Sichuan 610072, China | [b] Department of Ophthalmology, Eye Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325027, China
Correspondence: [*] Corresponding author: Man Yu, Department of Ophthalmology, Sichuan Academy of Medical Sciences and Sichuan Provincial People’s Hospital, School of Medicine, University of Electronic Science and Technology of China, No. 32 West 2nd Section 1st Ring Road, Chengdu, Sichuan 610072, China. Tel.: +86 28 87393700; E-mail: yuman712@126.com.
Note: [1] These authors contributed equally to this work.
Abstract: BACKGROUND: Long noncoding RNA MIAT expression is related to the development of some diseases. However, the role of MIAT in melanoma was has seldom been studied. OBJECTIVE: To investigate the effect of the lncRNA MIAT on melanoma cells. METHOD: Microarray was used to analyze the lncRNAs expression in tissue samples. The expression of the lncRNA MIAT was detected by qRT-PCR. A CCK-8 assay was used to assess cell viability, and cell counting was used to analyze cell proliferation. Wound healing and Transwell invasion assays were used to detect the migration and invasion abilities, respectively, of melanoma cells. Western blotting was performed to explore the molecular mechanisms of MIAT in melanoma. RESULTS: The lncRNA MIAT was overexpressed in melanoma. The overexpression of MIAT promoted cell proliferation, cell invasion and migration, while the knockdown of MIAT expression got the opposite results. MIAT significantly upregulated the phosphorylation of PI3K and AKT and promoted cMyc and cyclin D1 protein expression. CONCLUSION: LncRNA MIAT was a key factor to promote cell invasion, migration and proliferation through the PI3K/AKT signaling pathway. These findings may give us a potential way to treat melanoma.
Keywords: lncRNA, MIAT, melanoma, migration, invasion, PI3K/AKT signaling pathway
DOI: 10.3233/CBM-181869
Journal: Cancer Biomarkers, vol. 24, no. 2, pp. 203-211, 2019
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