Journal of Jilin University(Medicine Edition) ›› 2019, Vol. 45 ›› Issue (06): 1320-1326.doi: 10.13481/j.1671-587x.20190622

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Effect of YAP on proliferation and migration of non-small cell lung cancer cells

ZHOU Ning1, GUO Jiwei2, DAI Juanjuan2, LI Xuelin2, XI Sichuan2, GONG Kaikai2, WU Yan2   

  1. 1. Department of Otolaryngologyand Head-Neck Surgery, Affiliated Hospital, Binzhou Medical University, Binzhou 256603, China;
    2. Cancer Research Center, Affiliated Hospital, Binzhou Medical University, Binzhou 256603, China
  • Received:2019-01-17 Online:2019-12-05 Published:2019-12-05

Abstract: Objective: To investigate the role of long non-coding RNA(lncRNA) MALAT1 in the proliferation and migration of YAP-mediated non-small cell lung cancer (NSCLC) cells,and to elucidate its mechanism. Methods: The A549 and H1299 cell lines were selected and divided into Scramble siRNA group(transfected with Scramble siRNA),siYAP-1 group(transfected with siYAP-1)and siYAP-2 group(transfected with siYAP-2). RT-PCR and Western blotting methods were used to detect the expression levels of YAP and MALAT1 mRNA and YAP protein in the cells in variouis groups. The pcDNA3.1-YAP plasmid(pcDNA3.1-YAP group), pcDNA3.1-YAP plasmid plus siMALAT1-2 (pcDNA3.1-YAP+siMALAT1-2 group)and the control plasmid (pcDNA3.1-YAP+Scramble siRNA group)were transfected into the A549 and H1299 cells, respectively.CCK-8 method and scratch assay were used to detect the proliferation and migration abilities of the cells in various groups. Results: The expression levels of YAP mRNA and protein in the A549 and H1299 cells in siYAP-1 and siYAP-2 groups were significantly lower than those in Scramble siRNA group(P<0.05), and the expression levels of MALAT1 mRNA in the cells in siYAP-1 and siYAP-2 groups were significantly lower than those in Scramble siRNA group (P<0.05).Compared with pcDNA3.1-YAP group, the proliferation abilities of the A549 and H1299 cells in pcDNA3.1-YAP+siMALAT1-2 group were decreased(P<0.05),the migration ability of the H1299 cells in pcDNA3.1-YAP+siMALAT1-2 group was decreased(P<0.05). Conclusion: In the NSCLC cells, YAP promotes the cell proliferation and migration by regulating the expression of lncRNA MALAT1.

Key words: YAP, MALAT1, lung neoplasms, cell proliferation, migration

CLC Number: 

  • R734.2