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Human iPSC-derived glomeruli provide an advanced model to interrogate podocyte biology and accurately recapitulate podocytopathy

ABSTRACT: Human iPSC-derived glomeruli provide an advanced model to interrogate podocyte biology and accurately recapitulate podocytopathy

PROVIDER: PRJNA438893 | ENA |

REPOSITORIES: ENA

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Human iPSC-derived glomeruli provide an advanced model to interrogate podocyte biology and accurately recapitulate podocytopathy

Project description:Podocytes are highly specialised cells within the glomeruli of the kidney that maintain the filtration barrier by forming interdigitating foot processes and slit-diaphragms. Disruption to these features result in proteinuria and glomerulosclerosis. Studies into podocyte biology and disease have previously relied on conditionally immortalised cell lines due to the non- proliferative nature of this cell type. Here we describe an advanced model to study both podocyte and glomerular biology using isolated glomeruli from kidney organoids derived from human pluripotent stem cells.

2018-12-04 | GSE111992 | GEO

Transcriptomic analysis of glomeruli following podocyte-loss of Klf4

Project description:The goal of this study was to identify transcriptomic changes of mouse glomeruli in mice with podocyte-specific deletion of Kruppel-like factor 4, a zinc-finger transcription factor.

2021-09-22 | GSE149817 | GEO

Core TF Foxc1/2 reinforce differentiation of adult podocyte in glomeruli

Project description:We identified Fox1 and Foxc2 core transcription factors in kidney glomeruli. To investigate their transcriptional regulatory roles in glomeruli, we performed ChIPseq of Foxc1 and Foxc2 in adult mouse kidney glomeruli. The genome wide distribution of Foxc1/2 binding sites revealed they regulated the differentiation and mature state of adult podocyte to maintain kidney homeostatis.

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RNA-seq analysis using glomeruli isolated from control and podocyte-specific bPIX deficient mice

Project description:We found that podocyte-specific bPIX deficient (KO) mice developed progressive proteinuria starting at ~8 weeks of age, and glomerulosclerosis and podocyte loss by 13 weeks of age. To investigate the mechanism of podocyte loss induced by bPIX deficiency, we analyzed mRNA expression by RNA-sequence using isolated glomeruli from control (CTRL) and KO mice.

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Transcriptomic analysis of glomeruli following podocyte-loss of Klf4

Project description:Transcriptomic analysis of glomeruli following podocyte-loss of Klf4

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Comparison of Glomerular and Podocyte mRNA Profiles in eNOS-/- Diabetic Mice Induced by Streptozotocin

Project description:We compared mRNA profiles of isolated glomeruli versus sorted podocytes between diabetic and control mice. IRG mice crossed with eNOS-/- mice were further bred with podocin-rTTA and TetON-Cre mice to permanently label podocytes before the diabetic injury. Diabetes was induced by injection of streptozotocin. mRNA profiles of isolated glomeruli and sorted podocytes from diabetic and control mice at 10 weeks after induction of diabetes were examined. Consistent with the previous reports, expression of podocyte-specific markers in the glomeruli were down-regulated in the diabetic mice compared to controls. However, these differences disappeared when mRNA levels were corrected for podocyte number per glomerulus. Interestingly, the expression of these markers was not altered in sorted podocytes from diabetic mice, suggesting that the reduced expression of podocyte markers in isolated glomeruli is likely a secondary effect of reduced podocyte number, rather than the loss of differentiation markers. Analysis of the differentially expressed genes in diabetic mice also revealed distinct up-regulated pathways in the glomeruli (mitochondrial function and oxidative stress) and podocytes (actin organization). In conclusion, our data suggest that podocyte-specific gene expression in transcriptome obtained from the whole glomeruli may not represent those of podocytes in the diabetic kidney. We compared mRNA profiles of isolated glomeruli versus sorted podocytes between diabetic and control mice.

2016-03-16 | E-GEOD-79291 | biostudies-arrayexpress

Expression data for OVE26 diabetic mouse podocyte

Project description:Podocytes form filtration barrier through foot process around glomerualar basement membrane and selectively permit permeability of molecular smaller than albumin. Diabetes can cause podocyte pathological changes leading to high urine albumin level. Diabetic mouse model OVE26 has extremly high urine albumin and previously studies indicated its podocyte damaged. Here we try to find the key genes change in OVE26 diabetic mouse model podocyte by microarray assay while normal FVB mouse podocyte set as control. Podocyte eGFP transgenic mice were made on FVB background and crossbred to OVE26 diabetic model. Glomeruli isolated from OVE-GFP mice were digested by trypsin into signal cell. Podocytes with GFP were sorting out by FACS.

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Comparison of Glomerular and Podocyte mRNA Profiles in eNOS-/- Diabetic Mice Induced by Streptozotocin

2016-03-16 | GSE79291 | GEO

Core TF Foxc1/2 reinforce differentiation of adult podocyte in glomeruli

Project description:Core TF Foxc1/2 reinforce differentiation of adult podocyte in glomeruli

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Transcriptome profile of MafB-cKO of podocyte

Project description:The transcription factor MafB is essential for differentiation and foot process formation of podocytes. In order to identify the downstream targets of MafB, we analyzed the Mafb-deficient podocyte by RNA-seq. We found slit diaphragm-related protein (Nphs1, Magi2), Rho GTPase-activating protein (Arhgap24, Iqgap2) and podocyte-specific transcription factor (Tcf21) were significantly reduced in MafB cKO glomeruli. This indicates that one of these factors might be directly regulated by MafB to maintain its function in podocyte maintenance.

2021-08-03 | GSE96044 | GEO

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