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Genome-wide map of open chromatin in mouse nephron progenitor cells

ABSTRACT: Genome-wide map of open chromatin in mouse nephron progenitor cells

PROVIDER: PRJNA542683 | ENA |

REPOSITORIES: ENA

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			Action	DRS
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	SRR9049580_1.fastq.gz	Fastqsanger.gz
	SRR9049580_2.fastq.gz	Fastqsanger.gz
	SRR9049581_1.fastq.gz	Fastqsanger.gz
	SRR9049581_2.fastq.gz	Fastqsanger.gz

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Mapping open chromatin in mouse nephron progenitor cells

Project description:To delineate the epigenomic profile of the Six2+ mouse nephron progenitor cells, we mapped open chromatin using ATAC-Seq in Six2+ cells from E16.5 mouse kidneys.

2018-01-18 | GSE108424 | GEO

Mapping open chromatin in mouse nephron progenitor cells

Project description:Mapping open chromatin in mouse nephron progenitor cells

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Genome-wide map of open chromatin in mouse nephron progenitor cells

Project description:During embryonic kidney development, nephron progenitor cells (NPCs) self-renew and differentiate into all cells in mature nephrons. The Wnt signaling components Wnt9b and β-catenin are required for both NPC self-renewal and differentiation. A low level of Wnt/β-catenin are associated with NPC self-renewal while a high level with differentiation. To investigate the transcriptional mechanisms behind Wnt/β-catenin-driven regulation of NPCs states, we modeled NPC self-renewal and differentiation in vitro with NPEM (Brown et al., 2015) supplemented with low (1.25 μM) or high (5 μM) concentration of CHIR22091 (CHIR), a small molecule GSK3β inhibitor that stabilizes β-catenin. To investigate change of NPC chromatin landscape under influence of CHIR treatment, here we generated ATAC-Seq data from primary NPC, as well as NPC cultured in low and high CHIR concentration.

2021-01-07 | GSE131116 | GEO

Genome-wide map of open chromatin, trancription factor occupancy, chromatin marks and gene expression profiles in mouse nephron progenitor cells

Project description:Genome-wide map of open chromatin, trancription factor occupancy, chromatin marks and gene expression profiles in mouse nephron progenitor cells

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Genome-wide chromatin conformation capture (Hi-C) of primary murine nephron progenitor cells

Project description:This series contains Hi-C data generated from postnatal day 0 mouse nephron progenitor cells (NPCs) isolated from three different genotypes representing control, low and high nephron number mouse lines.

2024-03-21 | GSE222062 | GEO

Genome-wide chromatin accessibility (ATAC-Seq) of primary murine nephron progenitor cells.

Project description:This series contains ATAC-Seq data generated from mouse nephron progenitor cells (NPCs) isolated from different strains/mutants and developmental timepoints as indicated.

2024-03-21 | GSE224324 | GEO

LGR6 marks nephron progenitor cells

Project description:LGR6 marks nephron progenitor cells

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p53 Enables Self Renewal of Nephron Progenitor Cells

Project description:p53 limits the self-renewing ability of a variety of stem cells. Here, contrary to its classical role in restraining cell proliferation, we demonstrate a divergent function of p53 in maintenance of self-renewal of the nephron progenitor population in the embryonic mouse kidney. p53-null nephron progenitor cells (NPC) exhibit progressive loss of the self-renewing progenitor niche in the cap mesenchyme, identified by Cited1 and Six2 expression, and loss of cap integrity. Nephron endowment is regulated by NPC availability and their differentiation to nephrons. Quantitatively, the Six2p53-/- cap has 30% fewer Six2GFP+ cells. While the apoptotic index is unchanged the proliferation index is significantly lower, in accordance with cell cycle analysis data showing less mutant Six2p53-/-;GFP+ cells in S and G2/M phases in comparison to Six2p53+/+;GFP+ cells. The mutant kidneys also show nephron deficit and decreased Fgf8 expression. To investigate the underlying changes in gene expression in the cap mesenchyme that contribute to the Six2p53-/- phenotype, we utilized RNA-Seq for transcriptome comparison. Top biological processes affected by p53 loss are development and morphogenesis, cell adhesion/migration, cell survival and metabolism. Cells from the mutant CM showed increased cellular ROS levels as well as deregulated expression of energy metabolism and mitochondrial genes suggesting metabolic dysfunction. Adhesion defects are visualized by decreased immunostaining of adhesion marker NCAM, and may possibly contribute to the differentiation defect as well. Altogether our data suggest a novel role for p53 in enabling self-renewal of the NPC and preservation of the progenitor niche, and thus regulating nephron endowment. mRNA profiles of wild-type (WT) and conditional p53 knockout (KO) of Six2+ mouse nephron progenitor cells (NPC) at embryonic day 15.5

2015-02-16 | E-GEOD-56253 | biostudies-arrayexpress

Haploinsufficiency for SIX2 increases nephron progenitor proliferation leading to elevated branching and nephron number

Project description:The regulation of final nephron number in the kidney is poorly understood. However, cessation of nephron formation occurs when the self-renewing nephron progenitor population commits to differentiation. Transcription factors within this progenitor population, such as SIX2, are assumed to control expression of genes promoting self-renewal such that homozygous Six2 deletion results in premature commitment and an early halt to kidney development. In contrast, Six2 heterozygotes were assumed to be unaffected. Using quantitative morphometry, we demonstrate here a paradoxical 18% increase in ureteric branching and final nephron number in Six2 heterozygotes, despite evidence for reduced levels of SIX2 protein and transcript. This is accompanied by a clear shift in nephron progenitor identity with a distinct subset of progenitor genes, including Cited1 and Meox1, downregulated, while others were unaffected. The net result was an increase in nephron progenitor proliferation, as assessed by elevated EDU labelling, an increase in MYC protein and transcriptional upregulation of MYC target genes. Reducing proliferation by introducing Six2 heterozygosity onto the Fgf20-/- background resulted in premature differentiation of the progenitor population. Overall, this data demonstrates a unique dose response of the nephron progenitors to the level of SIX2 protein in which the role of SIX2 in progenitor proliferation versus self-renewal is separable.

2017-12-31 | GSE103219 | GEO

Gene expression profile of human iPSC-derived nephron progenitor cells

Project description:During development, nephron progenitor forming one million nephrons, a functional unit in the kidney. However, nephron progenitor ceases before birth in human when they terminally differentiated to the nephron. Our lab established the method for induction of nephron progenitors from mouse Embryonic Stem (ES) cells and/or human induced Pluripotent Stem Cells (iPSCs) (Taguchi et al., Cell Stem Cell. 2014, 2017). For application of induced nephron progenitors to regenerative medicine, a large number of cells are required such as disease modeling and drug screening. To selectively propagate human iPS-derived nephron progenitors in vitro in an undifferentiated state, we developed SIX2-GFP iPS line and optimized culture condition of induced nephron progenitors by modifying our previously developed condition (Tanigawa et al., Cell Rep. 2016). To understand how whole gene expression profiles of human iPS-derived nephron progenitor cells are changed during culture, we isolated nephron progenitor cells by FACS and cultured in our defined culture condition. Purified RNAs from cultured cells at day 7 or un-cultured nephron progenitor cells were analyzed by RNA-seq.

2019-08-01 | GSE118729 | GEO

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