Knockdown of KIAA1199 attenuates growth and metastasis of hepatocellular carcinoma.

Knockdown of KIAA1199 attenuates growth and metastasis of hepatocellular carcinoma.
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KIAA1199 的敲低可减弱肝细胞癌的生长和转移。

DOI:
10.1038/s41420-018-0099-5
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发表时间:
2018
影响因子:
7
通讯作者:
Tian D
Tian D
中科院分区:
医学2区
文献类型:
--
作者:
Liu J;Han P;Gong J;Wang Y;Chen B;Liao J;Tian D

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越来越多的证据表明KIAA 1199在肿瘤进展中起着至关重要的作用。然而,KIAA 1199在肝细胞癌(HCC)中的作用仍然未知。在这项研究中,我们发现KIAA 1199在人HCC组织和高转移性HCC细胞系中上调。此外,KIAA 1199的表达与HCC的肿瘤大小和转移显著相关。KIAA 1199基因的敲除在体外抑制了细胞的增殖和迁移,在体内抑制了致瘤性和肺转移。此外,沉默KIAA 1199通过减少cyclinD 1表达诱导G1期阻滞。此外,KIAA 1199敲低通过激活内质网(ER)应激诱导细胞凋亡,这是基于ER应激标志物激活转录因子4(ATF 4)和CAAT/增强子结合蛋白同源蛋白(CHOP)的上调。总之,我们的数据表明,KIAA 1199敲低抑制肝癌的生长和转移。
Accumulating evidence indicates that KIAA1199 plays a vital role in tumor progression. However, the role of KIAA1199 in hepatocellular carcinoma (HCC) still remains unknown. In this study, we found that KIAA1199 was upregulated in human HCC tissues and in highly metastatic HCC cell lines. Furthermore, the expression of KIAA1199 was significantly correlated with tumor size and metastasis in HCC. Knockdown of KIAA1199 inhibited cell proliferation and migration in vitro, and suppressed tumorigenicity and lung metastasis in vivo. In addition, silencing of KIAA1199 induced G1 phase arrest by reducing cyclinD1 expression. Moreover, KIAA1199 knockdown induced apoptosis by activating endoplasmic reticulum (ER) stress, which was based on the upregulation of ER stress markers, activating transcription factor 4 (ATF4) and CAAT/enhancer-binding protein homologous protein (CHOP). In conclusion, our data demonstrated that KIAA1199 knockdown inhibited the growth and metastasis of HCC.
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