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Expression analysis of liver tissues from LPS or LPS/GalN treated mice

ABSTRACT: 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.

ORGANISM(S): Mus musculus

SUBMITTER: chang antao

PROVIDER: E-GEOD-66745 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

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Expression analysis of liver tissues from LPS or LPS/GalN treated mice

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.

2015-03-11 | GSE66745 | GEO

Expression analysis of the effects of methyl-donor deficient diet on male mice (part 2)

Project description:BALB/c male mice were maintained for 8 weeks on a synthetic diet lacking in choline and folic acid and mated with control females. Tissue samples were taken from eigth-week old male offspring of control and treated males. The design of this study is further described in Voutounou, M., C .D. Glen, and Y. E. 2012. The effects of methyl-donor deficiency on mutation induction and transgenerational instability in mice. Mutat. Res. 734(1):1-4 (PMID: 22569175) The pattern of gene expression in liver and kidney of mice sacrificed immediatelly after the end of dietary restrictions is significatly altered. A ten 12x135K chip study using total RNA extracted from kidney and liver of control and treated BALB/c male mice. The expression of 42,575 genes was measured with two-fold technical redundancy.

2014-05-29 | E-GEOD-57522 | biostudies-arrayexpress

LPS/GalN-induced liver injury model: wild-type vs. TMX-deficient mice

Project description:Liver transcriptional profiles of untreated or LPS/GalN-treated wild-type and TMX-/- mice.

2012-05-01 | GSE28438 | GEO

Expression analysis of the effects of methyl-donor deficient diet on male mice (part 3)

Project description:CBA/Ca male mice were maintained for 8 weeks on a synthetic diet lacking in choline and folic acid and sacrificed 0 and 2 weeks after the end of dietary restrictions. The design of this study is further described in Voutounou, M., C .D. Glen, and Y. E. 2012. The effects of methyl-donor deficiency on mutation induction and transgenerational instability in mice. Mutat. Res. 734(1):1-4 (PMID: 22569175) The pattern of gene expression in liver of mice sacrificed immediatelly after the end of dietary restrictions is significatly altered. A ten 12x135K chip study using total RNA extracted from kidney and liver of control and treated BALB/c male mice. The expression of 42,575 genes was measured with two-fold technical redundancy.

2014-05-29 | E-GEOD-57523 | biostudies-arrayexpress

The Role of the E2F1 transcription factor in the innate immune response to systemic LPS [miRNA]

Project description:Our recent study of gene expression in mice treated with LPS systemically identified the E2F1 transcription factor as a novel regulator of innate immune response in lung, liver, and spleen tissue. Our follow up studies showed that RNAi-mediated inhibition or E2F1 gene deficiency lead to reduced inflammatory response to LPS in vitro and in vivo. Furthermore, a clear role for the role of miRNAs in the regulation of innate immune response to LPS has emerged. In the current study, we further examined B6;129E2F1-/- and B6x126 F2 mice in the systemic LPS model and used gene expression profiling to identify a defect in the coagulation cascade that contributes to increased morbidity of B6;129E2F1-/- mice despite their reduced systemic inflammatory response. We also studied miRNA expression profiles identified miRNAs that are differentially expressed in B6;129E2F1-/- but not B6x129 F2 mice. 32 mice (4-6) per group, E2F+/+ or E2F-/- genotype, treated with saline or LPS, 6 or 20 hrs

2012-06-30 | E-GEOD-33900 | biostudies-arrayexpress

Expression analysis of the effects of methyl-donor deficient diet on male mice

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2012-12-13 | E-GEOD-42744 | biostudies-arrayexpress

Transcriptom analysis of FLT1 regulated genes in metastasis associated macrophages

Project description:Gene expression changes in metastasis associated macrophage (MAM) with control and FLT1 inhibitory antibody (MF1) were compared using FACS sorted cells from mice bearing pulmonary metastasis of breast tumor cells treated with Ctrl and MF1 antibody A six chip study using total RNA recovered from metastasis associated macrophages from three separate mice treated with FLT1 inhibitory antibody (MF1) and three separate mice treated with control antibody. Each chip measures the expression level of 42586 genes.

2015-05-14 | E-GEOD-68843 | biostudies-arrayexpress

Profiling livers from LPS-treated rats

Project description:This program addresses the gene signature associated with LPS-treated liver in rat. Specifically, which genes are differentially expressed in livers of the Sprague Dawley rats treated with LPS?

2013-03-22 | GSE38078 | GEO

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

Choroid plexus proteome with and without LPS

Project description:Choroid plexus was isolated and pooled from the 5 mice after the perfusion with bromo phenol blue from 0 h and 6 h LPS treated mice. Proteins were isolated and trypsin digested and labelled with the NHS-porp (0h –LPS and 6h +LPS). Pre-fractionated using RP-HPLC and analysed on the Qexactive.

2016-09-27 | PXD001347 | Pride

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