The lncRNA HOXA11-AS functions as a competing endogenous RNA to regulate PADI2 expression by sponging miR-125a-5p in liver metastasis of colorectal cancer.

The lncRNA HOXA11-AS functions as a competing endogenous RNA to regulate PADI2 expression by sponging miR-125a-5p in liver metastasis of colorectal cancer.
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lncRNA HOXA11-AS 作为竞争性内源性 RNA,通过在结直肠癌肝转移中海绵 miR-125a-5p 来调节 PADI2 表达。

DOI:
10.18632/oncotarget.19956
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发表时间:
2017-09-19
期刊:
影响因子:
--
通讯作者:
Wang W
Wang W
中科院分区:
其他
文献类型:
--
作者:
Chen D;Sun Q;Zhang L;Zhou X;Cheng X;Zhou D;Ye F;Lin J;Wang W

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几种长链非编码RNA(lncRNA)在大肠癌肝转移的调控中起重要作用。我们先前描述了HOMEOBOX A11(HOXA 11)反义RNA(HOXA 11-AS)、miR-125 a-5 p和肽基精氨酸脱亚胺酶2(PADI 2)在促进CRC患者肝转移中的潜在参与。在本研究中,我们证实了HOXA 11-AS和PADI 2的显著上调,以及miR-125 a-5 p的下调,在CRC肝转移患者中。HOXA 11-AS或PADI 2的过表达和敲低研究以及miR-125 a-5 p的功能获得/丧失研究显示,在CRC细胞系中,HOXA 11-AS和PADI 2之间呈正相关,而miR-125 a-5 p与肝转移的调控呈负相关。总体而言,我们得出结论,HOXA 11-AS通过充当miR-125 a-5 p海绵促进CRC的肝转移,并描述了一种新的HOXA 11-AS-miR-125 a-5 p-PADI 2调控网络参与CRC肝转移。
Several long non-coding RNAs (lncRNAs) play important roles in the regulation of liver metastasis in colorectal cancer (CRC) patients. We previously described the potential involvement of HOMEOBOX A11 (HOXA11) antisense RNA (HOXA11-AS), miR-125a-5p, and peptidyl arginine deiminase 2 (PADI2) in promoting liver metastasis in CRC patients. In the present study, we verified the significant upregulation of HOXA11-AS and PADI2, as well as the downregulation of miR-125a-5p, in CRC patients with liver metastasis. Overexpression and knockdown studies of HOXA11-AS or PADI2, as well as gain-/loss-of-function studies of miR-125a-5p, revealed a positive correlation between HOXA11-AS and PADI2 and a negative correlation with miR-125a-5p in the regulation of liver metastasis in CRC cell lines. Overall, we conclude that HOXA11-AS promotes liver metastasis in CRC by functioning as a miR-125a-5p sponge and describe a novel HOXA11-AS–miR-125a-5p–PADI2 regulatory network involved in CRC liver metastasis.
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