The effect of LncRNA GAS5 on prolification, migration and invation in breast cancer cells

Objective: To investigate the effect of LncRNA GAS5 on prolification,migration and invation in breast cancer cells.Methods: To achieve our goal,we used qRT-PCR assay to detect the expression of LncRNA GAS5 in breast cancer SKBR-3,MDA-MB-231 and MCF-7 cells;SRB assay was used to measure the prolification ability of breast cancer cells;Wound healing and Transwell assay was used to dentect the ability of invation and migration in breast cancer cells.Results: Among the three breast cancer cell lines,the expression level of LncRNA GAS5 in SKBR-3 cell is lowest and the expression level of LncRNA GAS5 in MCF-7 cell is highest(P<0.01).After transfected MCF-7 or SKBR-3 cells with si-GAS5 or pcDNA-GAS5-vertor,the expression level of LncRNA GAS5 in MCF-7 cells is down-regulated and in SKBR-3 cells is up-regulated(P<0.01),depletion of LncRNA GAS5,the prolification,invation and migration ability of MCF-7 cells is increased(P<0.01).Overexpression of LncRNA GAS5 made the prolification,invation and migration ability of SKBR-3 cells decreased(P<0.01).Conclusions: lncRNA GAS5 is a novel molecule involved in breast cancer progression,which provide a potential therapeutic target.