Abstract
BackgroundLong non-coding RNAs (lncRNAs) have been uncovered to be essential regulators in the biological processes of human cancers, including lung adenocarcinoma (LUAD). Recently, small nucleolar RNA host gene 17 (SNHG17) has been identified as one novel oncogenic lncRNA in gastric cancer. However, it remains unclear whether SNHG7 exert functions in LUAD progression. MethodsThe expression levels of SNHG17, miR-485–5p and Wnt ligand secretion mediator (WLS) in LUAD cells was evaluated by RT-qPCR. The effect of SNHG7 silencing on LUAD cell proliferation was assessed by colony formation and EdU assays. The apoptosis of LUAD cells was measured by flow cytometry analysis. Transwell assays were applied to detect cell migration and invasion. The relationship between SNHG17 and miR-485–5p was validated by RIP, RNA pull down and luciferase reporter assays. ResultsSNHG17 and WLS were up-regulated in LUAD cell lines. Down-regulation of SNHG17 curbed LUAD cell proliferation, migration and invasion but facilitated apoptosis. SNHG17 acted as miR-485–5p sponge to upregulate WLS expression. ConclusionSNHG17 triggers the progression of LUAD via sponging miR-485–5p to upregulate WLS expression.
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