Epigenetic silencing of miR-338-3p contributes to tumorigenicity in gastric cancer by targeting SSX2IP.

Epigenetic silencing of miR-338-3p contributes to tumorigenicity in gastric cancer by targeting SSX2IP.
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miR-338-3p 表观遗传沉默通过靶向 SSX2IP 促进胃癌致瘤性

DOI:
10.1371/journal.pone.0066782
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发表时间:
2013
期刊:
影响因子:
3.7
通讯作者:
Zhu Z
Zhu Z
中科院分区:
综合性期刊3区
文献类型:
--
作者:
Li P;Chen X;Su L;Li C;Zhi Q;Yu B;Sheng H;Wang J;Feng R;Cai Q;Li J;Yu Y;Yan M;Liu B;Zhu Z

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MicroRNA在肿瘤的发生和转移中起着重要作用。在此,我们报告miR-338- 3 p在胃癌中表观遗传学沉默,其下调与胃癌临床病理特征显著相关。值得注意的是,在体外和体内,恢复SGC-7901胃癌细胞中miR-338- 3 p的表达抑制增殖、迁移、侵袭和致瘤性,至少部分通过诱导凋亡。此外,我们证明了癌基因SSX 2 IP是miR-338- 3 p的靶点。我们认为miR-338- 3 p在胃癌中具有抑癌作用,其CpG岛甲基化状态可作为胃癌的潜在诊断标志物。
MicroRNA has been recently recognized as playing a prominent role in tumorigenesis and metastasis. Here, we report that miR-338-3p was epigenetically silenced in gastric cancer, and its down-regulation was significantly correlated with gastric cancer clinicopathological features. Strikingly, restoring miR-338-3p expression in SGC-7901 gastric cancer cells inhibited proliferation, migration, invasion and tumorigenicity in vitro and in vivo, at least partly through inducing apoptosis. Furthermore, we demonstrate the oncogene SSX2IP is a target of miR-338-3p. We propose that miR-338-3p functions as a tumor suppressor in gastric cancer, and the methylation status of its CpG island could serve as a potential diagnostic marker for gastric cancer.
DOI: 10.1007/978-1-4419-9967-2_6
发表时间: 2013-01-01
期刊: EPIGENETIC ALTERATIONS IN ONCOGENESIS
影响因子: --
作者:
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