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MicroRNA-181a Inhibits Tumor Proliferation, Invasiveness, and Metastasis and Is Downregulated in Gastric Cancer

机译:MicroRNA-181a在胃癌中抑制肿瘤的增殖,侵袭和转移,并下调

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MicroRNAs (miRNAs) play crucial roles in the development and progression of human cancers, including gastric cancer. The discovery of miRNAs may provide a new and powerful tool for studying the mechanism, diagnosis, and treatment of gastric cancer. Here we show that miR-181a levels were significantly downregulated in gastric cancer tissues compared with the adjacent normal regions in 80 paired samples. Moreover, the lower levels of miR-181a were associated with the pM or pTNM stage in clinical gastric cancer patients. In addition, the ectopic expression of miR-181a in the gastric cancer cell line HGC-27 inhibited cell proliferation, cell migration, and invasion by directly interacting with the mRNA encoding the oncogenic factor Proxl. Taken together, our results indicate that miR-181a might act as a tumor suppressor in gastric cancer, which may provide a novel diagnostic and therapeutic option for human gastric cancer in the near future.
机译:微小RNA(miRNA)在包括胃癌在内的人类癌症的发生和发展中起着至关重要的作用。 miRNA的发现可能为研究胃癌的机制,诊断和治疗提供新的强大工具。在这里,我们显示与80对配对样品中的邻近正常区域相比,胃癌组织中的miR-181a水平显着下调。此外,在临床胃癌患者中,较低水平的miR-181a与pM或pTNM分期有关。此外,miR-181a在胃癌细胞系HGC-27中的异位表达通过直接与编码致癌因子Proxl的mRNA相互作用而抑制细胞增殖,细胞迁移和侵袭。两者合计,我们的结果表明,miR-181a可能在胃癌中起抑癌作用,这可能在不久的将来为人类胃癌提供一种新颖的诊断和治疗选择。

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