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Transcriptional profiling of mouse glomerulus in lipopolysaccharide-induced proteinuria model

ABSTRACT: The pathogenic mechanisms of common kidney glomerular diseases, including the vast majority of cases of proteinuria, remain unknown. To gain insight into the pathogenesis of proteinuria development, we characterized the glomerular gene expression changes that accompany early stages of proteinuria induced by lipopolysaccharide (LPS) in mice.

ORGANISM(S): Mus musculus

PROVIDER: GSE12599 | GEO | 2009/08/26

SECONDARY ACCESSION(S): PRJNA112853

REPOSITORIES: GEO

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Transcriptional profiling of mouse glomerulus in lipopolysaccharide-induced proteinuria model

Project description:The pathogenic mechanisms of common kidney glomerular diseases, including the vast majority of cases of proteinuria, remain unknown. To gain insight into the pathogenesis of proteinuria development, we characterized the glomerular gene expression changes that accompany early stages of proteinuria induced by lipopolysaccharide (LPS) in mice. Nine-week-old female C57Bl6 mice were allocated to LPS-treated group (n=6) or PBS control group (n=4), and subsequently treated either by a single intraperitoneal injection LPS or control buffer.

2009-08-25 | E-GEOD-12599 | biostudies-arrayexpress

Microarray analysis of the development of proteinuria in the Dahl salt-sensitive rat

Project description:To get more insight in cause and consequences of proteinuria, we studied glomerular gene expression patterns before and after the onset of increased urinary albumin excretion in a proteinuric rat strain. Spontaneously proteinuric Dahl salt-sensitive rats (Dahl SS) were compared to non-proteinuric, spontaneously hypertensive rats (SHR). In Dahl SS, UAE significantly increased starting from week 5 of age. Glomerular RNA profiles of 4- and 6 week-old rats were studied by Affymetrix microarrays. Keywords: Time course analysis

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Lipopolysaccharide-stimulated neutrophils

Project description:Neutrophil gene transcription following lipopolysaccharide exposure. Microarray analysis of lipopolysaccharide-treated human neutrophils. Neutrophils respond to infection by degranulation, release of reactive oxygen intermediates, and secretion of chemokines and cytokines; however, activation of neutrophil transcriptional machinery has been little appreciated. Recent findings suggest that gene expression may represent an additional neutrophil function after exposure to lipopolysaccharide (LPS). We performed microarray gene expression analysis of 4,608 mostly nonredundant genes on LPS-stimulated human neutrophils. Analysis of three donors indicated some variability but also a high degree of reproducibility in gene expression. Twenty-eight verifiable, distinct genes were induced by 4 h of LPS treatment, and 13 genes were repressed. Genes other than cytokines and chemokines are regulated; interestingly, genes involved in cell growth regulation and survival, transcriptional regulation, and interferon response are among those induced, whereas genes involved in cytoskeletal regulation are predominantly repressed. In addition, we identified monocyte chemoattractant protein-1 as a novel LPS-regulated chemokine in neutrophils. Included in these lists are five clones with no defined function. These data suggest molecular mechanisms by which neutrophils respond to infection and indicate that the transcriptional potential of neutrophils is greater than previously thought. Keywords: repeat sample

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Expression data from podocyte injured glomerulus

Project description:Glomerular diseases are most common cause of end stage kidney disease (ESKD). Although renin angiotensin system inhibitors are effective for progression of chronic kidney disease, The number of ESKD increases in the world. To identify a new candidate drug for glomerular disease, differentially expressed genes are searched by glomerular RNA microarray.

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Anti-lipopolysaccharide antibody ruminal administration mitigates the ruminal lipopolysaccharide release without acute phase inflammatory and hepatic transcriptomic responses during the subacute ruminal acidosis challenge in Holstein bull cattle

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Expression data from rat kidney: pathophysiology of proteinuria

Project description:This SuperSeries is composed of the following subset Series: GSE14666: Expression data from female rat kidney: pathophysiology of proteinuria GSE14676: Expression data from male rat kidney: pathophysiology of proteinuria Refer to individual Series

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Expression data from male rat kidney: pathophysiology of proteinuria

Project description:This study was designed to investigate gene expression in kidneys of adult Sabra rats (SBH/y and SBN/y rat strains) with two indwelling kidneys or after uni-ninephrectomy, seeking those genes that are differentially expressed between the two strains, and between animals with one or two kidneys. SBH/y after uninephrectomy develop proteinuria to a much greater extent than SBN/y. The study was performed as part of an overall effort to detect the genes that are associated with the pathophysiology of proteinuria. Keywords: Analysis of genes that are differentially expressed in the kidneys, contrasting between an animal strain that tends to develop proteinuria which is amplified by uninephrectomy and another strain that is relatively resistant to the development of proteinuria

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Expression data from female rat kidney: pathophysiology of proteinuria

Project description:This study was designed to investigate gene expression in kidneys of adult female Sabra rats (SBH/y and SBN/y rat strains) with two indwelling kidneys or after uni-ninephrectomy, seeking those genes that are differentially expressed between the two strains, and between animals with one or two kidneys. SBH/y after uninephrectomy develop proteinuria to a much greater extent than SBN/y. The study was performed as part of an overall effort to detect the genes that are associated with the pathophysiology of proteinuria. Keywords: Analysis of genes that are differentially expressed in the kidneys, contrasting between an animal strain that tends to develop proteinuria which is amplified by uninephrectomy and another strain that is relatively resistant to the development of proteinuria

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