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lncRNA LEF1-AS1 Promotes Malignancy in Non-Small-Cell Lung Cancer by Modulating the miR-489/SOX4 Axis
Jiansheng Yang1, Xianbin Lin1, Wentan Jiang1
1Department of Thoracic Surgery, The Second Affiliated Hospital, Fujian Medical University, Quanzhou, Fujian Province, China.
Abstract:
Increasing evidence has indicated that long noncoding RNAs (lncRNAs) could participate in diverse cancers. Among these, lymphoid enhancer-binding factor 1 antisense RNA 1 (LEF1-AS1) was recently identified as an oncogenic lncRNA, but little is known about its function in non-small-cell lung cancer (NSCLC). In the present study, we found that LEF1-AS1 was markedly upregulated in lung cancer tissues and could promote NSCLC cell proliferation and migration in vivo and in vitro. LEF1-AS1 could bind with miR-489 and further negatively regulate miR-489 to promote SRY-related HMG box transcription factor 4 (SOX4) expression. In conclusion, these data suggested that LEF1-AS1 promoted NSCLC tumorigenesis dependent on the miR-489-SOX4 axis and implicated the potential application of LEF1-AS1 for the prognosis and treatment of NSCLC.
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