Mus musculus
Ontology highlight
ABSTRACT:
PROVIDER: PRJNA313469 | ENA |
REPOSITORIES: ENA
Dataset's files
| Action | DRS | |||
|---|---|---|---|---|
| SRR3195210.fastq.gz | Fastqsanger.gz | |||
| SRR3195220.fastq.gz | Fastqsanger.gz | |||
| SRR3195211.fastq.gz | Fastqsanger.gz | |||
| SRR3195221.fastq.gz | Fastqsanger.gz | |||
| SRR3195212.fastq.gz | Fastqsanger.gz |
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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
Project description:To investigate why dipeptides accumulate in immature CML cells, we examined upstream gene expression patterns. We isolated the most primitive long-term stem cells, short-term stem cells, and KLS- progenitor cells from healthy littermate control and CML-affected mice and performed gene expression profiling using next-generation RNA-sequencing. Gene expression profiles of the most primitive long-term (LT) stem cells (CD150+CD48-CD135-KLS+ cells), short-term (ST) stem cells (CD150-CD48-CD135- KLS+ cells), and KLS- progenitor cells from healthy littermate control and CML-affected mice
2015-09-18 | E-GEOD-70031 | biostudies-arrayexpress
Project description:Nephron progenitor cells (NPCs) self-renew and differentiate into nephrons, the functional units of the kidney. Here we report manipulation of p38 and YAP activity creates a synthetic niche that allows the long-term clonal expansion of primary mouse and human NPCs, and induced NPCs (iNPCs) from human pluripotent stem cells. Cultured iNPCs resemble closely primary human NPCs, generating nephron organoids with abundant distal convoluted tubule cells, which are not observed in published kidney organoids. The synthetic niche reprograms differentiated nephron cells into NPC state, recapitulating the plasticity of developing nephron in vivo. Scalability and ease of genome-editing in the cultured NPCs allow for genome-wide CRISPR screening, identi-fying novel genes associated with kidney development and disease. A rapid, efficient, and scala-ble organoid model for polycystic kidney disease was derived directly from genome-edited NPCs, and validated in drug screen. These technological platforms have broad applications to kidney development, disease, plasticity, and regeneration.
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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
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Project description:To investigate why dipeptides accumulate in immature CML cells, we examined upstream gene expression patterns. We isolated the most primitive long-term stem cells, short-term stem cells, and KLS- progenitor cells from healthy littermate control and CML-affected mice and performed gene expression profiling using next-generation RNA-sequencing.
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2013-11-14 | E-GEOD-52354 | biostudies-arrayexpress
Project description:Nephron number is a major determinant of long-term renal function. We hypothesized a link between epigenetic regulation and nephron formation. In support of this hypothesis, expression analysis evidenced high levels of DNA methyltransferases Dnmt1 and Dnmt3a in the nephrogenic zone of the developing mouse kidney. Using targeted loss-of-function manipulations in mice, we show that deletion of Dnmt1 in nephron progenitor cells results in a marked hypoplasia and reduction of nephron number at birth. In contrast, deletion of Dnmt3a/3b in nephron progenitor cells or deletion of Dnmt1/3a/3b in differentiated renal cells did not lead to any overt kidney phenotype. Whole mount optical projection tomography and 3D-reconstructions uncovered a significant reduction of stem cell niches and progenitor cells in Dnmt1-deficient mice. Ultimately, RNA sequencing analysis revealed that Dnmt1 controls DNA transcription regulating progenitor renewal, identity and differentiation. In summary, this study establishes DNA methylation as key regulatory event of prenatal renal programming.
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Project description:Forkhead transcription factors are essential for diverse processes in early embryonic development and organogenesis. Foxd1 is required during kidney development and its inactivation results in failure of nephron progenitor cell differentiation. Foxd1 is expressed in interstitial cells adjacent to nephron progenitor cells, suggesting an essential role for the progenitor cell niche in nephrogenesis. To better understand how cortical interstitial cells in general, and FOXD1 in particular, influence the progenitor cell niche, we examined the differentiation states of two progenitor cell subtypes in Foxd1-/- tissue. We found that while nephron progenitor cells are retained in a primitive CITED1-expressing compartment, cortical interstitial cells prematurely differentiate. To identify pathways regulated by FOXD1, we used microarray analysis and screened for target genes by comparison of Foxd1 null and wild type tissues. We chose the E14.5 timepoint because at this stage nephron differentiation is present in wild type kidneys but absent from Foxd1 null kidneys. We examined genes that were upregulated or downregulated in the Foxd1 null compared to wild type.
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Project description:Generation of induced nephron progenitor-like cells from human urine-derived cells
| PRJNA554095 | ENA