Hepatitis B protein HBx binds the DLEU2 lncRNA to sustain cccDNA and host cancer-related gene transcription
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منابع مشابه
Nuclear HBx binds the HBV minichromosome and modifies the epigenetic regulation of cccDNA function.
HBV cccDNA, the template for transcription of all viral mRNAs, accumulates in the nucleus of infected cells as a stable episome organized into minichromosomes by histones and non-histone viral and cellular proteins. Using a cccDNA-specific chromatin immunoprecipitation (ChIP)-based quantitative assay, we have previously shown that transcription of the HBV minichromosome is regulated by epigenet...
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The hepatitis B virus (HBV) X protein (HBx) was originally suggested to be a viral transcriptional activator, but its functional mechanisms are still unclear. In this study we have analysed the intracellular localization of HBx in transfected cells and demonstrate that its compartmentalization is dependent on overall expression levels. HBx was exclusively or predominantly localized in the nucle...
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Hepatocellular carcinoma (HCC) is one of the most prevalent cancers which are found in many Asian and African countries. There are several risk factors that may develop to HCC. Along with several other factors contributing to HCC, hepatitis B virus (HBV) infection also accounts for a major cause. HBV infection represents a major health problem worldwide. Among all of HBV genes, HBx is believed ...
متن کاملHBx protein of hepatitis B virus activates Jak1-STAT signaling.
The X-gene product (HBx) of the hepatitis B virus plays essential roles in viral replication and the generation of hepatocellular carcinoma. Although the mechanism for HBx action is unclear, HBx may exert its pleiotropic functions through the stimulation of signal transduction pathways including the Ras/mitogen-activated protein kinase cascade and/or inactivation of the p53 function. Here, we i...
متن کاملHepatitis B virus HBx protein activates transcription factor NF-kappaB by acting on multiple cytoplasmic inhibitors of rel-related proteins.
The HBx protein is a small polypeptide encoded by mammalian hepadnaviruses that is essential for viral infectivity and is thought to play a role in development of hepatocellular carcinoma during chronic hepatitis B virus infection. HBx is a transactivator that stimulates Ras signal transduction pathways in the cytoplasm and certain transcription elements in the nucleus. To better understand the...
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ژورنال
عنوان ژورنال: Gut
سال: 2020
ISSN: 0017-5749,1468-3288
DOI: 10.1136/gutjnl-2019-319637