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Adipose Tissue Macrophage Accrual in Obesity

ABSTRACT: Adipose Tissue Macrophage Accrual in Obesity

PROVIDER: PRJNA634570 | ENA |

REPOSITORIES: ENA

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Perivascular Mesenchymal Cells Control Adipose Tissue Macrophage Accrual in Obesity

Project description:Chronic low-grade visceral white adipose tissue (WAT) inflammation is a hallmark of metabolic syndrome in obesity. Here, we demonstrate that a subpopulation of adipose tissue perivascular (PDGFRb+) cells, termed “fibro-inflammatory progenitors” (FIPs), activate pro-inflammatory signaling cascades shortly after the onset of high-fat diet feeding of mice and regulate pro-inflammatory macrophage accumulation in WAT in a TLR4-dependent manner. FIPs activation in obesity is mediated by the downregulation of ZFP423, identified here as a transcriptional co-regulator of NFkB. Biochemical analysis of ZFP423-protein complexes and ChIP-seq analysis reveal that ZFP423 suppresses the DNA-binding capacity of the p65 subunit of NFkB by inducing a p300 to NuRD co-regulator switch. Doxycycline-inducible expression of Zfp423 in PDGFRb+ cells suppresses inflammatory signaling in FIPs and attenuates metabolic inflammation of visceral WAT in obesity. Inducible inactivation of Zfp423 in PDGFRb+ cells increases FIP activity, exacerbates adipose macrophage accrual, and promotes WAT dysfunction. These studies implicate perivascular mesenchymal cells as important regulators of chronic adipose tissue inflammation in obesity and identify ZFP423 as a transcriptional break on NFkB signaling.

2020-09-01 | GSE151092 | GEO

Perivascular Mesenchymal Cells Control Adipose Tissue Macrophage Accrual in Obesity

Project description:Perivascular Mesenchymal Cells Control Adipose Tissue Macrophage Accrual in Obesity

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Mural Cell ZFP423 Controls Adipose Tissue Macrophage Accrual in Obesity [ChIP-seq]

Project description:Chronic low-grade visceral white adipose tissue (WAT) inflammation is a hallmark of metabolic syndrome in obesity. Here, we demonstrate that a specific subpopulation of adipose tissue perivascular (PDGFRb+) stromal cells, termed “fibro-inflammatory progenitors” (FIPs), activate pro-inflammatory signaling cascades shortly after the onset of high-fat diet feeding of mice and control the accumulation of pro-inflammatory macrophages in WAT. The activation of FIPs is mediated by the downregulation of ZFP423, identified here as a transcriptional co-regulator of NFkB. Biochemical analysis of ZFP423-protein complexes and ChIP-seq analysis reveal that ZFP423 suppresses the DNA-binding capacity of the p65 subunit of NFkB by inducing a co-regulator switch. Doxycycline-inducible expression of Zfp423 in PDGFRb+ cells suppresses inflammatory signaling in FIPs and attenuates macrophage accumulation within visceral WAT of obese mice. Conversely, inducible inactivation of Zfp423 in PDGFRb+ cells increases FIP activity, exacerbates adipose macrophage accrual, and promotes WAT dysfunction in obese mice. These studies implicate mural cells as sentinels and gatekeepers of adipose tissue inflammation in obesity.

2020-09-01 | GSE134868 | GEO

Mural Cell ZFP423 Controls Adipose Tissue Macrophage Accrual in Obesity [ChIP-seq]

Project description:Mural Cell ZFP423 Controls Adipose Tissue Macrophage Accrual in Obesity [ChIP-seq]

| PRJNA556674 | ENA

RNA-seq of human adipose tissue macrophage subtypes in obesity

Project description:RNA-seq of human adipose tissue macrophage subtypes in obesity

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Visceral adipose tissue macrophage subsets

Project description:Visceral adipose tissue macrophage subsets

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Adipose Tissue Macrophage Accrual in Obesity

Project description:This SuperSeries is composed of the SubSeries listed below.

2020-09-01 | GSE151093 | GEO

Macrophage heterogenity in liver and adipose during obesity

Project description:Macrophage heterogenity in liver and adipose during obesity

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Adipose Tissue MicroRNAs as Regulators of CCL2 Production in Human Obesity

Project description:This SuperSeries is composed of the following subset Series: GSE25401: Adipose Tissue MicroRNAs as Regulators of CCL2 Production in Human Obesity [gene expression] GSE25470: Adipose Tissue MicroRNAs as Regulators of CCL2 Production in Human Obesity [miRNA data] GSE25910: Adipose Tissue MicroRNAs as Regulators of CCL2 Production in Human Obesity [differentiation data] Refer to individual Series

2012-08-12 | E-GEOD-25402 | biostudies-arrayexpress