Project description:Investigation of whole genome gene expression level changes in the liver tissue from LPS/GalN treated mice, compared to LPS treated mice Treatment of mice with LPS and the liver-specific transcriptional inhibitor D-(+)-galactosamine (GalN) induces fatal hepatitis, which is mediated by TNFα and characterized by massive hepatic apoptosis. Previous studies suggest that GalN increases the sensitivity to LPS/TNFα probably by blocking the transcription of protective factors, but the identity of most of these factors is still unclear. This analysis is performed to indentify these protective factors. A six chip study using total RNA extracted from liver tissues of three separate LPS treated mice and three separate LPS/GalN treated mice. Each chip measures the expression level of 44,170 genes from C57 BL/6 mice with three 60-mer probe pairs per gene.
Project description:Investigation of whole genome gene expression level changes in the liver tissue from LPS/GalN treated mice, compared to LPS treated mice Treatment of mice with LPS and the liver-specific transcriptional inhibitor D-(+)-galactosamine (GalN) induces fatal hepatitis, which is mediated by TNFα and characterized by massive hepatic apoptosis. Previous studies suggest that GalN increases the sensitivity to LPS/TNFα probably by blocking the transcription of protective factors, but the identity of most of these factors is still unclear. This analysis is performed to indentify these protective factors.
Project description:Purpose: The goal of this study is to compare transcriptome profilings of liver from GBP5 knockout and WT control mice treated with GalN/LPS. Methods: GBP5 knockout and WT control mice were treated with GalN (800 μg/g body weight) and LPS (100 ng/g body weight) for 6 h to induce liver inflammation and injury. RNA samples were pooled from livers of GBP5 KO and WT mice (n=4 for each group). RNA-seq was performed by using HiSeq X Ten platform. Paired-end clean reads were aligned to the mouse reference genome (Ensembl_GRCm38.89) with TopHat (version 2.0.12), and the aligned reads were used to quantify mRNA expression by using HTSeq-count (version 0.6.1). Conclusion: Our study represents the first detailed analysis of liver transcriptomes from GBP5 KO and WT mice treated with GalN/LPS, generated by RNA-seq technology. The RNA-seq analysis showed that 405 genes were down-regulated and 33 genes were up-regulated in the liver of GBP5 KO mice. GO analysis showed that the down-regulated genes were primarily related to the immune system process and response to stress. KEGG pathway enrichment analysis showed that phagocytosis and Jak-STAT signaling pathway were significantly decreased in the liver of GBP5 KO mice.
Project description:This is an investigation of whole genome gene expression level in tissues of mice stimulated by LPS, FK565 or LPS + FK565 in vivo and ex vivo. We show that parenteral administration of a pure synthetic Nod1 ligand, FK565, induces site-specific vascular inflammation in mice, which is prominent in aortic root including aortic valves, slight in aorta and absent in other arteries. The degree of respective vascular inflammation is associated with persistent high expression of proinflammatory chemokine/cytokine genes in each tissue in vivo by microarray analysis, and not with Nod1 expression levels. The ex vivo production of proinflammatory chemokine/cytokine by Nod1 ligand is higher in aortic root than in other arteries from normal murine vascular tissues, and also higher in human coronary artery endothelial cells (HCAEC) than in human pulmonary artery endothelial cells (HPAEC), suggesting that site-specific vascular inflammation is at least in part ascribed to an intrinsic nature of the vascular tissue/cell itself.
Project description:SILAC based protein correlation profiling using size exclusion of protein complexes derived from Mus musculus tissues (Heart, Liver, Lung, Kidney, Skeletal Muscle, Thymus)
Project description:In order to further discover the resistance mechanism of Rack1F/F;Alb-cre mice to LPS/ GalN-induced fulfulant hepatitis, we used genome-wide microarray expression profiling as a discovery platform to identify potential genes associated with resistance to LPS/ GalN-induced in Rack1F/F;Alb-cre mice. Fulminant hepatitis was induced by LPS/GalN in Rack1F/F;Alb-cre mice and Rack1F/F mice for 0, 1,3 and 6 hours, respectively.
Project description:SILAC based protein correlation profiling using size exclusion of protein complexes derived from seven Mus musculus tissues (Heart, Brain, Liver, Lung, Kidney, Skeletal Muscle, Thymus)