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LncRNAs expression profiles in the livers of 20-month-old male HBx transgenic mice and C57BL/6 wild-type mice

ABSTRACT: The hepatitis B virus X protein (HBx) has been implicated as an oncogene in both epigenetic modifications and genetic regulation during hepatocarcinogenesis, but the underlying mechanisms are not entirely clear. Long non-coding RNAs (lncRNAs), which regulate gene expression with little or no protein-coding capacity, are involved in diverse biological processes and in carcinogenesis. We asked whether HBx could promote hepatocellular carcinoma (HCC) by regulating the expression of lncRNAs.In this study, we investigated the alteration in expression of lncRNAs induced by HBx using microarrays, and our results indicate that HBx transgenic mice have a specific profile of liver lncRNAs compared with wild-type mice.

ORGANISM(S): Mus musculus

PROVIDER: GSE42185 | GEO | 2013/11/04

SECONDARY ACCESSION(S): PRJNA179260

REPOSITORIES: GEO

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LncRNAs expression profiles in the livers of 20-month-old male HBx transgenic mice and C57BL/6 wild-type mice

Project description:The hepatitis B virus X protein (HBx) has been implicated as an oncogene in both epigenetic modifications and genetic regulation during hepatocarcinogenesis, but the underlying mechanisms are not entirely clear. Long non-coding RNAs (lncRNAs), which regulate gene expression with little or no protein-coding capacity, are involved in diverse biological processes and in carcinogenesis. We asked whether HBx could promote hepatocellular carcinoma (HCC) by regulating the expression of lncRNAs.In this study, we investigated the alteration in expression of lncRNAs induced by HBx using microarrays, and our results indicate that HBx transgenic mice have a specific profile of liver lncRNAs compared with wild-type mice. For these experiments, six each of 20-month-old male HBx-transgenic mice and wild-type C57BL/6 mice were sacrificed and the livers were removed. Every three livers were pooled as one sample; therefore, each group was represented by two samples. The total RNA was extracted from the four samples and used for microarray experiments. Mouse LncRNA Array (4 x 44K, ArrayStar, Rockville, MD) were used to monitor the expression level of approximately 14000 lncRNAs identified from the NCBI RefSeq, UCSC, RNAdb2.0, NRED, Fantom3.0 and UCRs. LncRNAs differentially expressed were identified by comparing expression levels in HBx-transgenic mice and wild-type mice.

2013-11-04 | E-GEOD-42185 | biostudies-arrayexpress

Gene Expression Analysis for HBx-induced HCC Mouse Model

Project description:Hepatoarcinogenesis is a slow and multistep process. We used Hepatitis B virus X antigen (HBx) induced Hepatocellular carcinoma (HCC) as model. We also identify the biomarkers, the pathways and networks underlying HCC formation in this animal model. We analyzed the events from the early, middle, and late stages, in order to predict and prevent the development of cancer. At each specific stage, we analyzed the expression level that differed at least two-fold between HBx transgenic and wild-type mouse liver. Statistical approaches were used to identify genes displaying an increasing or decreasing trend throughout hepatocarcinogenesis. The liver was excised from 6-week-, 8-month-, 12-month-, 14-month-, and 16-month-old HBx transgenic mice (A106 strain) and RNA samples were isolated. In both 14-month- and 16-month-old mice, samples were obtained from both the tumor tissue and the normal.

2010-09-16 | E-GEOD-15251 | biostudies-arrayexpress

Gene Expression Analysis for HBx-induced HCC Mouse Model

2010-09-16 | GSE15251 | GEO

Wild-type versus HBx-transfected mive

Project description:Hepatitis B virus (HBV) has been clearly recognized as an etiological factor for hepatocellular carcinoma (HCC). HBV encodes the potentially oncogenic HBx protein. We aimed to elucidate the molecular mechanism of HCC caused by HBx and to discover the biomarker related to HCC by HBx. Three experimental groups, 3, 9 and 13 month aged HBx Tg mice and age matched normal wild type B6 mouse which have same background of HBx Tg mice were used to find differentially expressed genes during HCC. Keywords: Genetic modification 3-month-old, 9-month-old, 13-month-old wild type B6 mice vs 3-month-old, 9-month-old, 13-month-old HBx transfected mice; Biological replicates at each timepoint; 9 controls vs 9 HBx-mice

2010-06-19 | E-GEOD-12723 | biostudies-arrayexpress

Wild-type versus HBx-transfected mive

2008-09-11 | GSE12723 | GEO

Expression data from Hela cells stably expressing the wild-type HBx and the four mutant HBx

Project description:In large cohort studies, several HBx mutants were identified as independent risk factors for HCC risk.In order to study the carcinogenic mechanism between different mutants, HeLa cell lines expressing wild type and different mutated HBx proteins were constructed. We used microarrays to describe gene expression in HeLa cells stably expressing the wild-type HBx and the four mutant HBx, and to identify distinct classes of up-regulated genes.

2022-03-02 | GSE179126 | GEO

Obesity synergizes with HBx, Src and p53 mutation accelerate hepatocarcinogenesis

Project description:Obesity synergizes with HBx, Src and p53 mutation accelerate hepatocarcinogenesis

| PRJNA555327 | ENA

Identification of substrates of the CRL4-HBx E3 ubiquitin ligase

Project description:Hepatitis B Virus (HBV) remains a major public health problem, and is a major cause liver cancer worldwide. HBV infection in vivo requires the function of the HBx protein, which facilitates expression of viral genes from the episomal genome by an unknown mechanism. Evidence suggests that HBx functions as a targeting subunit for the CRL4 E3 ubiquitin ligase, redirecting the complex to target and degrade an unknown host restriction factor. We used substrate trapping proteomics to search for ubiquitylation substrates of HBx. We used MLN4924 to block CRL activity and stabilize interactions between HBx and its substrates. We then performed APMS to identify bound proteins and potential substrates.

2016-09-29 | PXD004762 | Pride

HBX-HepG2 versus Control-HepG2

Project description:Mature microRNA expression profiling of HBx-expressing HepG2 cells versus Control cells under UV stress The mature microRNA expression profile of HBx-expressing HepG2 cells versus control cells in three independent biological repeated experiments. This study focuses only on human sequences. The complete data matrix is linked below as a supplementary file.

2010-05-16 | E-GEOD-15554 | biostudies-arrayexpress

miRNAs expression in HepG2-HBx and HepG2-URG11

Project description:Compare microRNAs expression when HepG2 cells stably expressing HBx protein with HepG2 control cells expressing baterial chloramphenicol acetyltransferase Compare microRNAs expression when HepG2 cells stably expressing URG11 protein with HepG2 control cells expressing baterial chloramphenicol acetyltransferase microRNA expression in Cells expressing HBx vs. Cell without HBx microRNA expression in Cells expressing URG11 vs. Cell without URG11

2011-11-23 | E-GEOD-33854 | biostudies-arrayexpress

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