LINC01354 enhances the proliferation and invasion of lung cancer cells by regulating miR-340-5p/ATF1 signaling pathway.

Recent studies showed that long non-coding RNAs (lncRNAs) could play critical roles in tumors progression. However, the performance of LINC01354 is still limited in non-small cell lung cancer (NSCLC). In the current study, our results showed that LINC01354 was significantly increased in NSCLC tissues and cell lines. High LINC01354 expression was associated with advanced TNM stage and poor prognosis in NSCLC patients. Loss-of-function assays revealed that knockdown of LINC01354 reduced lung cancer cells proliferation and invasive ability in vitro. Subsequently, mechanism studies showed that LINC01354 positively regulated the ATF1 expression via competitive binding to miR-340-5p. Therefore, our results illustrated that LINC01354 might act as an oncogenic role by modulating the miR-340-5p/ATF1 axis, providing a novel therapeutic therapy for NSCLC treatment.