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LncRNA WT1-AS inhibits gastric cancer, while its role in other cancers is unknown. We investigated the role of WT1-AS in non-small cell lung cancer (NSCLC). Sixty-six NSCLC patients (40 males and 26 females; 36 to 68 years old; mean age 52.7 ± 6.4 years old) were selected from the 178 NSCLC patients operated on for lung cancer between 2010 and 2013. RT-qPCR was used to analyze the expression of lncRNA. Overexpression experiments were performed to assess interactions between lncRNAs. CCK-8 assay was carried to evaluate the roles of WT1-AS and UCA1 in regulating cell proliferation. Cell invasion and migration assays were performed to assess the roles of WT1-AS and UCA1 in regulating cell invasion and migration. Western-blot was performed to illustrate the effect of WT1-AS and UCA1 in EMT. WT1-AS was downregulated in NSCLC and was correlated with poor survival. The expression of WT1-AS in NSCLC was not correlated with clinical stages. LncRNA UCA1 was upregulated in cancer tissues and inversely correlated with WT1-AS. Overexpression of UCA1 did not affect WT1-AS, while overexpression of WT1-AS led to inhibited expression of UCA1. Overexpression of UCA1 resulted in increased proliferation, EMT, migration and invasion of NSCLC cells, while overexpression of WT1-AS showed opposite effects. In addition, overexpression of UCA1 inhibited the role of overexpression of WT1-AS. Therefore, overexpression of WT1-AS may inhibit the cell proliferation and EMT to decrease cell migration and invasion of NSCLC cells by downregulating UCA1.


Yanhui Wan, Da Yao, Fuyuan Fang, Youyu Wang, Guodong Wu, Youhui Qian. LncRNA WT1-AS downregulates lncRNA UCA1 to suppress non-small cell lung cancer and predicts poor survival. BMC cancer. 2021 Jan 29;21(1):104

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PMID: 33514344

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