Decreased miR-204 in H. pylori-associated gastric cancer promotes cancer cell proliferation and invasion by targeting SOX4.

Decreased miR-204 in H. pylori-associated gastric cancer promotes cancer cell proliferation and invasion by targeting SOX4.
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幽门螺杆菌相关胃癌中 miR-204 的减少通过靶向 SOX4 促进癌细胞增殖和侵袭

DOI:
10.1371/journal.pone.0101457
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发表时间:
2014
期刊:
影响因子:
3.7
通讯作者:
Zhang G
Zhang G
中科院分区:
综合性期刊3区
文献类型:
--
作者:
Zhou X;Li L;Su J;Zhang G

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背景幽门螺杆菌(H. pylori)感染和胃癌仍然是未知的。在这项研究中,我们确定了miRNA在H. pylori诱发胃癌方法和结果我们发现miR-204在H. pylori阳性组织。下调miR-204基因可增强胃癌细胞的体外侵袭和增殖能力。荧光素酶分析显示,SOX 4是miR-204的靶基因,在H. pylori阳性组织。miR-204的下调和SOX 4的过表达促进了上皮-间质转化过程。结论miR-204可能是H. pylori通过靶向SOX 4诱导胃癌。
Background The molecular mechanism between Helicobacter pylori (H. pylori) infection and gastric cancer remained largely unknown. In this study, we determined the role of miRNA in H. pylori induced gastric cancer. Methods and Results We found that miR-204 was decreased in H. pylori positive tissues by qRT-PCR. Knockdown of miR-204 enhanced the invasion and proliferation ability of gastric cancer cells in vitro. Luciferase assay revealed that SOX4 was target gene of miR-204, which was found up-regulated in H. pylori positive tissues. Down-regulation of miR-204 and over-expression of SOX4 promoted epithelial-mesenchymal transition process. Conclusion Taken together, our findings demonstrated that miR-204 may act as a tumor suppressor in H. pylori induced gastric cancer by targeting SOX4.
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