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Smooth muscle cell mineralocorticoid receptor regulation of vascular mRNAs with aging

ABSTRACT: We used a smooth muscle cell-specific mineralocorticoid receptor knockout mouse to generate young and aged MR-intact and SMC-MR-KO aortic mRNA to examine the effect of age on vascular mRNA alterations in the presence and absence of SMC-MR. For more information about the mouse model see: McCurley, A et al. Direct regulation of blood pressure by smooth muscle cell mineralocorticoid receptors. Nat Med. 2012 Sep;18(9):1429-33

ORGANISM(S): Mus musculus

PROVIDER: GSE102397 | GEO | 2017/08/10

SECONDARY ACCESSION(S): PRJNA397657

REPOSITORIES: GEO

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Smooth muscle cell mineralocorticoid receptor regulation of vascular microRNAs with aging

Project description:We used a smooth muscle cell-specific mineralocorticoid receptor knockout mouse to generate young and aged MR-intact and SMC-MR-KO aortic miRNA to examine the effect of age on vascular miRNA alterations in the presence and absence of SMC-MR. For more information about the mouse model see: McCurley, A et al. Direct regulation of blood pressure by smooth muscle cell mineralocorticoid receptors. Nat Med. 2012 Sep;18(9):1429-33

2016-07-29 | GSE84960 | GEO

Smooth muscle cell mineralocorticoid receptor regulation of vascular microRNAs with aging

2016-07-29 | E-GEOD-84960 | biostudies-arrayexpress

Molecular signature of mineralocorticoid signalling in cardiomyocytes

Project description:Gene expression analysis of hearts from double transgenic mice with conditional, cardiomyocyte-specific, overexpression of the mineralocorticoid (MR) or of the glucocorticoid receptor (GR). GR-mice vs controls, MR-mice vs controls. GR: 3 sample pools hybridized to 2 microarrays each. MR: 1 sample pool hybridized to 3 microarrays. Microarray contains triplicate spots.

2010-06-18 | E-GEOD-20525 | biostudies-arrayexpress

Cistrome of the Aldosterone-activated Mineralocorticoid Receptor in Human Renal Cells

Project description:Aldosterone, the main mineralocorticoid hormone in Humans, has a major role in maintaining the hemo-electrolytique homeostasis, by acting in the distal part of nephron. This steroid hormone mainly acts through its binding to a ligand-induced transcription factor, the mineralocorticoid receptor (MR). MR binds to specific genomic sequences, where it recruits transcriptional coregulators, to activate or repress target gene transcription. The aim of this work was to access the whole aldosterone-dependand MR target genes, by comparing sequenced data from aldosterone or vehicle-treated samples. Anti-MR ChIP-seq in Human Kidney GFP-hMR cells treated with vehicle or Aldosterone.

2015-06-12 | E-GEOD-69777 | biostudies-arrayexpress

Molecular signature of mineralocorticoid signalling in cardiomyocytes

2010-06-18 | GSE20525 | GEO

Cistrome of the Aldosterone-activated Mineralocorticoid Receptor in Human Renal Cells

2015-06-12 | GSE69777 | GEO

Effect of Mineralocorticoid Receptor deletion on glucocorticoid signalling in the macropahge

2010-07-30 | GSE23308 | GEO

ChIP-nexus of mineralocorticoid receptors and glucocorticoid receptors in neuroblastoma cells

Project description:Purpose: To compare the binding profiles of mineralocorticoid and glucocorticoid receptors after corticosterone treatment in neuroblastoma cells. Methods: Tagged glucocorticoid receptors (eGFP-rat GR) and mineralocorticoid receptors (mCherry-rat MR) were transiently transfected into Neuro2A mouse neuroblastoma cells and treated with (i) vehicle, (ii) corticosterone 100 nM for 20 mins and (iii) corticosterone 100 nM for 20 mins followed by media repacement twice and 40 mins further incubation in charcoal-stripped serum media. ChIP-nexus samples were prepared in triplicate for deep sequencing using Illumina NextSeq, as well as control samples taken from cell lysates before immunoprecipitation. Sequence data was analyzed and processed for the identification of enriched binding sites, using MACS2, and for the characteristic staggered ChIP-nexus borders, using the MACE pipeline (Wang et al., 2014). Results: Corticosterone-sensitive glucocorticoid receptor (GR) binding sites and mineralocorticoid receptor (MR) binding sites showed considerable overlap, by MACS2 analysis. GR and MR binding sites were highly similar showing recruitment to the same DNA sites, by MACE analysis (Wang et al., 2014). Further analyses showed GR could tether MR to the DNA by GR in a functional manner such that gene expression could be altered by the presence of tethered MR. Conclusions: MR can be recruited to DNA-binding sites by GR, even in the absence of MR DNA-binding. MR can interact in multiple modes at genomic DNA binding sites.

2019-03-15 | GSE115417 | GEO

Aldosterone-inducible genes in mineralocorticoid receptor expressed human endothelial cell lines

Project description:To elucidate the aldosterone-regulated genes in vascular endothelial cells, we developed human endothelial cell line (EAhy926) stably expressing human mineralocorticoid receptor by retroviral system (MR-EAhy). Then gene expression profile of MR-EAhy stimulated with or without aldosterone was compared using DNA microarray analysis.

2011-03-18 | GSE28009 | GEO

Effect of Mineralocorticoid Receptor deletion on glucocorticoid signalling in the macropahge

Project description:Inappropriate excess of the steroid hormone aldosterone, which is a mineralocorticoid receptor (MR) agonist, is associated with increased inflammation and risk of cardiovascular disease. MR antagonists are cardioprotective and antiinflammatory in vivo, and evidence suggests that they mediate these effects in part by aldosterone- independent mechanisms. We used affymetrix to characterize the effect of Mineralocorticoid Receptor deletion on macrophage transcriptional profile, and identify its requirement in normal glucocorticoid signalling. We isolated mouse peritoneal macrophages from Myeloid MRKO mice and Floxed Controls, cultured in the presence or absence of corticosterone. RNA was extracted for Affymetrix cDNA hybridization. Each sample was pooled from experiments performed in triplicate.

2010-07-30 | E-GEOD-23308 | biostudies-arrayexpress

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