期刊
HEPATOLOGY
卷 72, 期 5, 页码 1666-1681出版社
WILEY
DOI: 10.1002/hep.31195
关键词
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资金
- National Natural Science Foundation of China [81301712, 81672774, 81672727]
- Natural Science Foundation of Shanghai [13ZR1461500]
- State Key Project on Infectious Diseases of China [2018ZX10723204]
Background and Aims The nuclear factor kappa B (NF-kappa B) signaling pathway is important for linking inflammation and tumorigenesis. Here, we characterized an NF-kappa B signaling activation-induced long intergenic noncoding (LINC) RNA in hepatocellular carcinoma (HCC), LINC00665, that contributes to the enhanced cell proliferation of HCC cells bothin vitroandin vivo. Approach and Results LINC00665 physically interacts with the double-stranded RNA (dsRNA)-activated protein kinase (PKR), enhances its activation, and maintains its protein stability by blocking ubiquitin/proteasome-dependent degradation, resulting in a positive feedback regulation of NF-kappa B signaling in HCC cells. Notably, patients with HCC and higher LINC00665 have poorer outcomes in the clinic. Conclusions Our findings indicate that LINC00665 is involved in the NF-kappa B signaling activation in HCC cells and that the inflammatory LINC00665/PKR/NF-kappa B loop plays important oncogenic roles in hepatic cancer progression and may be a potential therapeutic target.
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