Long Noncoding RNA NEAT1 Promotes Proliferation and Invasion via Targeting miR-181a-5p in Non-Small Cell Lung Cancer

Long noncoding RNAs (lncRNAs) have been implicated in various biological processes and pathological conditions. including tumorigenesis. However, the exact roles of NEAT and its underlying mechanisms in non-small cell lung cancer (NSCLC) remain largely unclear. In the present study, lncRNA NEAT1 was detected to be significantly upregulated in NSCLC tissues and closely associated with advanced TNM stages, lymph node metastasis, distant metastasis, and poor prognosis. Further experiments revealed that IncRNA NEAT1 silencing inhibited cell proliferation and invasion in vitro. In addition, mechanistic analysis showed that IncRNA NEAT1 upregulated the miR-181a-5p-targeted gene HMGB2 through acting as a competitive "sponge" of miR-181a-5p. In conclusion, our study suggested that IncRNA NEAT1 plays an oncogenic role in NSCLC progression and provides potential mechanisms by which IncRNA NEAT1 contributes to this disease.