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Gene expression profiling of human iPSC kidney organoid-derived epithelium

ABSTRACT: Gene expression profiling of human iPSC kidney organoid-derived epithelium

PROVIDER: PRJNA419735 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR6321750.fastq.gz	Fastqsanger.gz
	SRR6321760.fastq.gz	Fastqsanger.gz
	SRR6321751.fastq.gz	Fastqsanger.gz
	SRR6321761.fastq.gz	Fastqsanger.gz
	SRR6321752.fastq.gz	Fastqsanger.gz

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Gene expression profiling of human iPSC kidney organoid-derived epithelium

Project description:The kidney organoid differentiation protocol takes induced pluripotent stem cells through to kidney organoid via directed differentiation in approximately 25 days. The cells are grown in a monolayer in a dish for seven days and are subjected to growth factors before being pelleted on day seven. The organoids then continue to differentiate as a 3D structure, with at least 8 distinct kidney cell types identifiable around day 18. Here the EPCAM+ epithelial fraction was isolated from day 25 kidney organoids using MACS-enrichment and RNA-sequencing libraries generated.

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Bulk RNA-seq of MilliporeSigma 3DGro human patient-derived gastrointestinal organoid lines compared to SCC300 human iPSC-derived colon organoid line

Project description:Transcriptomic profiles of 6 commercially-available human patient-derived gastrointestinal organoid lines were obtained and compared to transcriptomic profile of a commercially available human iPSC-induced colon organoid line. Transcriptomic profile of iPSC-derived human colon organoid line was compared after culture in either Corning growth-factor-reduced Matrigel (Corning 356231) or MilliporeSigma growth-factor-reduced ECMGel (E6909)

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iPSC-derived type IV collagen α5-expressing kidney organoids model Alport syndrome

Project description:Alport syndrome (AS) is a hereditary glomerulonephritis caused by COL4A3, COL4A4 or COL4A5 gene mutations and characterized by abnormalities of glomerular basement membranes (GBMs). Due to a lack of curative treatments, the condition proceeds to end-stage renal disease even in adolescents. Hampering drug discovery is the absence of effective in vitro methods for testing the restoration of normal GBMs. Here, we aimed to develop kidney organoid models from AS patient iPSCs for this purpose. We established iPSC-derived collagen α5(IV)-expressing kidney organoids and confirmed that kidney organoids from COL4A5 mutation-corrected iPSCs restore collagen α5(IV) protein expression. Importantly, our model recapitulates the differences in collagen composition between iPSC-derived kidney organoids from mild and severe AS cases. Furthermore, we demonstrate that a chemical chaperone, 4-phenyl butyric acid, has the potential to correct GBM abnormalities in kidney organoids showing mild AS phenotypes. This iPSC-derived kidney organoid model will contribute to drug discovery for AS.

2023-07-06 | GSE236314 | GEO

Kidney organoid reproducibility across multiple human iPSC lines and diminished off target cells after transplantation revealed by single cell transcriptomics

Project description:Human iPSC-derived kidney organoids have the potential to revolutionize discovery, but assessing their consistency and reproducibility across iPSC lines, and reducing the generation of off-target cells remain an open challenge. Here, we used single cell RNA-Seq (scRNA-Seq) to profile 450,118 cells to show that organoid composition and development are comparable to human fetal and adult kidneys. Although cell classes were largely reproducible across iPSC lines, time points, protocols, and replicates, cell proportions were variable between different iPSC lines. Off-target cell proportions were the most variable. Prolonged in vitro culture did not alter cell types, but organoid transplantation under the mouse kidney capsule diminished off-target cells. Our work shows how scRNA-seq can help score organoids for reproducibility, faithfulness and quality, that kidney organoids derived from different iPSC lines are comparable surrogates for human kidney, and that transplantation enhances their formation by diminishing off-target cells.

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Fate-mapping within human iPSC-derived kidney organoids reveals conserved mammalian nephron progenitor lineage relationships.

Project description:Early human kidney development is poorly documented due to tissue inaccessibility and a lack of genetic tractability. Here we combine reprogramming, CRISPR/Cas9 gene-editing and organoid technologies to study the nephron lineage in a human context. We confirm the presence of a SIX2+ population in early kidney organoids with a transcriptional profile akin to human fetal nephron progenitors. Using lineage-tracing analyses, we show that SIX2-expressing cells contribute to nephron formation but not to the putative collecting duct epithelium. Labeling of SIX2+ cells at various time-points during organoid differentiation revealed a markedly reduced capacity for these cells to contribute to nephron formation over time. This suggests human kidney organoids lack a true nephron progenitor niche, as the developing kidney does in vivo, capable of both self-renewal and ongoing nephrogeneis. Nonetheless, human iPSC-derived kidney tissue maintains previously identified lineage relationships, which supports the utility of in vitro organoid models for interrogating the molecular and cellular basis of early human development.

2019-03-12 | GSE119561 | GEO

Gene expression profiling of human iPSC kidney organoid-derived proximal tubules

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Project description:Purpose: A proof of concept study examining the disease modelling capabilities of patient iPSC derived kidney organoids. Methods: A proband was diagnosed by genome sequencing with compound heterozygous IFT140 mutations. A one-step reprogramming/gene-editing protocol of proband fibroblasts was used to derive both uncorrected patient and isogenic gene-corrected induced pluripotent stem cells (iPSC) which were differentiated to kidney organoids. Organoids were examined by immunofluorescence. Additionally, epithelial cells magnetically sorted from whole kidney organoids underwent transcriptional profiling and spheroid culture. Results: Differential expression analysis of organoid epithelial cell fractions demonstrated apicobasal polarity, cell-cell junction and dynein motor assembly downregulation in patient organoids. Defective ciliary morphology and spheroid culture were rescued in gene corrected organoids. Conclusions: This study validates patient iPSC-derived kidney organoids as a novel, faithful and patient-specific model to further the study of inherited renal disease in regenerated, human, in vitro tissue.

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PRPF8 CLIP seq for iPSC, kidney organoid, retinal organoid, and retinal epithelium derived from c.6926A>C RPE with Retinitis Pigmentosa patients and CRISPR/Cas9 corrected

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Human iPSC derived glomeruli facilitate accurate modelling of podocytopathy

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