Abstract
LncRNA ELF3-AS1 has been characterized as an oncogenic lncRNA in bladder cancer and oral cancer, whereas its role in non-small cell lung cancer (NSCLC) is unknown. In this study, the authors observed that ELF3-AS1 was upregulated in NSCLC tissues in comparison with that in paired nontumor tissues collected from 68 NSCLC patients. High expression levels of ELF3-AS1 predicted the poor survival of NSCLC patients. Expression levels of miR-212 were inversely and significantly correlated with the expression levels of ELF3-AS1 across NSCLC tissue samples. In NSCLC cells, overexpression of ELF3-AS1 led to downregulated miR-212 and increased methylation of miR-212 gene. In addition, overexpression of ELF3-AS1 inhibited the role of miR-212 in suppressing cancer cell invasion and migration. Therefore, ELF3-AS1 is upregulated in NSCLC and promotes cancer cell invasion and migration by downregulating miR-212 through methylation.
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