Ontology highlight
ABSTRACT:
PROVIDER: PRJNA1024666 | ENA |
REPOSITORIES: ENA
Dataset's files
| Action | DRS | |||
|---|---|---|---|---|
| SRR26313744.fastq.gz | Fastqsanger.gz | |||
| SRR26313745.fastq.gz | Fastqsanger.gz | |||
| SRR26313746.fastq.gz | Fastqsanger.gz | |||
| SRR26313747.fastq.gz | Fastqsanger.gz | |||
| SRR26313748.fastq.gz | Fastqsanger.gz |
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Project description:In murine NAFL/NASH models, high-fat high-calorie fructose (HFHC) diet fed for 16 weeks induces hepatic steatosis, inflammatory cells infilatration and early stage fibrosis. In addition, HFHC diet 16 weeks but not 8 weeks is accompanied with weight gain and insulin resistance. The aim of this study is to determine the gene expression changes in mouse liver by HFHC diet for 8weeks.
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Project description:We investigated the effects of cholesterol on nonalcoholic steatohepatitis (NASH) and hepatocellular carcinoma (HCC) in diethylnitrosamine-injected mice fed high-fat high-cholesterol (HFHC) diet versus high-fat (HF) alone. mRNA microarray analysis was applied for expressional aberrations.
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Project description:To characterize gene expression changes in arachidonic acid metabolism pathway genes in the presense of non-alcoholic fatty liver disease (NAFLD)/non-alcoholic steatohepatitis (NASH) mice administered were administered an atherogenic diet for a period of four weeks. Administration of the atherogenic diet resulted in significant enrichment of the arachidonic acid metabolism pathway by gene set enrichment analysis (GSEA). The core enrichment subset of genes was down-regulated in mice administered the atherogenic diet and the majority of the genes that were down-regulated were cytochrome P450s. A total of 4 wild-type mice were administered a standard diet (STD; control group) and 4 wild-type mice were administered a HFHC diet (HFHC).
2014-01-03 | E-GEOD-53381 | biostudies-arrayexpress
Project description:Nonalcoholic steatohepatitis (NASH) might soon become the leading cause of end-stage liver disease worldwide with limited treatment options. Liver fibrosis, driven by chronic inflammation and hepatic stellate cells (HSCs) activation, critically determines morbidity and mortality in patients with NASH. Pyruvate kinase M2 (PKM2) is involved in immune activation and inflammatory liver diseases; however, its role and therapeutic potential in NASH fibrosis remain largely unexplored. By bioinformatic screening and analysis of human and murine NASH livers, we found that PKM2 was specifically upregulated in non-parenchymal cells (NPCs) in fibrotic NASH livers, especially in macrophages. Macrophage-specific Pkm2 knockout (Pkm2fl/flLysMCre) significantly ameliorated hepatic inflammation and fibrosis severity in three distinct NASH models induced by methionine–choline-deficient (MCD) diet, high-fat high-cholesterol (HFHC) diet and western diet plus weekly carbon tetrachloride injection (WD/CCl4). Single-cell transcriptomic analysis indicated that deletion of PKM2 in macrophage reduced profibrotic Ly6Chigh macrophage infiltration. Mechanistically, PKM2-dependent glycolysis promotes NLRP3 activation in proinflammatory macrophages, thus inducing HSCs activation and fibrogenesis. Pharmacological PKM2 agonist efficiently attenuated the profibrotic crosstalk between macrophages and HSCs in vitro and in vivo. Translationally, ablation of PKM2 in NPCs by cholesterol-conjugated heteroduplex oligonucleotides, a novel oligonucleotide drug that preferentially accumulated in the liver, dose-dependently reversed NASH fibrosis without observable hepatotoxicity. Our study highlights the pivotal role of macrophage PKM2 in advancing NASH fibrogenesis. Therapeutic modulation of PKM2 in a macrophage-specific or liver-specific fashion may serve as a novel strategy to combat NASH fibrosis.
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