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  • Title: Effects of LncRNA Lnc-LIF-AS on cell proliferation, migration and invasion in a human cervical cancer cell line.
    Author: Song W, Wang J, Liu H, Zhu C, Xu F, Qian L, Shen Z, Zhu J, Yin S, Qin J, Chen L, Wu D, Nashan B, Shan G, Xiao W, Zhou Y.
    Journal: Cytokine; 2019 Aug; 120():165-175. PubMed ID: 31085454.
    Abstract:
    This study explored the effect of LncRNA Lnc-LIF-AS on cell proliferation, migration and invasion in the human cervical cancer (HCC) cell line SiHa. SiHa cells had the lowest expression of Lnc-LIF-AS in the 4 human cervical cancer cell lines (SiHa, ME-180, C-33A and HeLa) and were transfected and divided into the SiHa/con (transfected with pMIGRI) cell group, SiHa/Lnc-LIF-AS (transfected with pMIGRI-Lnc-LIF-AS) cell group, and SiHa/Lnc-LIF-AS-DN (transfected with pMIGRI-Lnc-LIF-AS-DN, in which the sequences overlapping with LIF mRNA was deleted) cell group. Overexpression of Lnc-LIF-AS could promote the proliferation, colony formation, invasion and migration in SiHa and ME-180 cells. And the low expression of Lnc-LIF-AS suppress the proliferation, colony formation invasion and migration in HeLa cells when the Lnc-LIF-AS expression has been suppressed. In the SiHa/Lnc-LIF-AS cells group, the cell cycle was mainly halted in the S phase and overexpression of Lnc-LIF-AS had no effect on the apoptosis of SiHa cells. Overexpression of Lnc-LIF-AS could promote the secretion of LIF in SiHa cells, and the supernatant from SiHa/Lnc-LIF-AS cells could promote cell proliferation in the SiHa/con cells. The STAT3 inhibitor could inhibit cell proliferation in the SiHa/Lnc-LIF-AS cells. The expression level of Lnc-LIF-AS in cervical cancer tissues was higher than that in normal tissues and the expression level of Lnc-LIF-AS was positively correlated with the level of LIF. In the SiHa/con and SiHa/Lnc-LIF-AS-DN cell groups, there were no significant differences in cell proliferation, cell migration and cell invasion. The overexpression of Lnc-LIF-AS can promote cell proliferation, migration and invasion in cervical cancer cells, and the core function domain of this lncRNA was located in the overlapping a 3'-UTR base sequence of LIF mRNA.
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