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Cancer Biomark:长链非编码RNA LINC00460表达的下调抑制胃癌中的肿瘤生长

2019-03-27 不详 网络

既往研究已经表明长链非编码RNA参与肿瘤发展。然而,LINC00460在胃癌(GC)中的作用仍然很大。本研究旨在确定LINC00460对GC进展的影响。通过定量实时聚合酶链反应(qRT-PCR)检测LINC00460在GC组织和细胞中的表达。通过MTT(3-(4,5-二甲基噻唑-2-基)-2,5-二苯基四唑溴化物),流式细胞术分析和transwell细胞侵袭测定评估细胞增殖,细胞周期分布和细胞侵袭

既往研究已经表明长链非编码RNA参与肿瘤发展。然而,LINC00460在癌(GC)中的作用仍然很大。本研究旨在确定LINC00460对GC进展的影响。

通过定量实时聚合酶链反应(qRT-PCR)检测LINC00460在GC组织和细胞中的表达。通过MTT(3-(4,5-二甲基噻唑-2-基)-2,5-二苯基四唑溴化物),流式细胞术分析和transwell细胞侵袭测定评估细胞增殖,细胞周期分布和细胞侵袭。 Western印迹分析用于检测WNT信号传导相关蛋白表达。肿瘤异种移植测定用于检测LINC00460在体内的作用。

结果显示,LINC00460在癌组织中的表达高于邻近的正常组织。较高的LINC00460表达与淋巴结转移和晚期TNM分期有关。此外,我们发现更高的LINC00460表达预测胃癌的无病生存(DFS)和总生存(OS)时间差。多变量分析显示LINC00460表达是GC预后的独立危险因素。此外,在体外,我们证明与对照组相比,LINC00460表达的抑制抑制了胃癌细胞的细胞增殖,S期细胞数和细胞侵袭。此外,我们发现LINC00460的下调通过下调c-Myc和β-连环蛋白表达来抑制Wnt /β-连环蛋白信号传导,这表明LINC00460可通过激活Wnt /β-catenin信号传导促进细胞增殖和侵袭。在体内,我们还证明LINC00460敲低可显著抑制细胞增殖。

总之,该研究结果表明,LINC00460是一种参与GC开发的新型分子,可能成为GC治疗的潜在靶点。

原始出处:

Zhang S, Xu J, et al., Downregulation of long noncoding RNA LINC00460 expression suppresses tumor growth in vitro and in vivo in gastric cancer. Cancer Biomark. 2019 Mar 8. doi: 10.3233/CBM-182177. 

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    2019-09-06 sunylz
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    2019-12-18 d830384
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    2019-03-27 ylzr123

    为作品点赞!认真学习了,把经验应用于实践,为患者解除病痛。

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