Kidney Organoid Modeling of WT1 Mutations Reveals Key Regulatory Paths Underlying Podocyte Development

Bibliographic Details
Title: Kidney Organoid Modeling of WT1 Mutations Reveals Key Regulatory Paths Underlying Podocyte Development
Authors: Gang Wang, Hangdi Wu, Xiuwen Zhai, Li Zhang, Changming Zhang, Chen Cheng, Xiaodong Xu, Erzhi Gao, Xushen Xiong, Jin Zhang, Zhihong Liu
Source: Advanced Science, Vol 11, Iss 29, Pp n/a-n/a (2024)
Publisher Information: Wiley, 2024.
Publication Year: 2024
Collection: LCC:Science
Subject Terms: kidney organoid, podocyte development, scATAC‐seq, scRNA‐seq, WT1, Science
More Details: Abstract Wilms tumor‐1(WT1) is a crucial transcription factor that regulates podocyte development. However, the epigenomic mechanism underlying the function of WT1 during podocyte development has yet to be fully elucidated. Here, single‐cell chromatin accessibility and gene expression maps of foetal kidneys and kidney organoids are generated. Functional implications of WT1‐targeted genes, which are crucial for the development of podocytes and the maintenance of their structure, including BMPER/PAX2/MAGI2 that regulates WNT signaling pathway, MYH9 that maintains actin filament organization and NPHS1 that modulates cell junction assembly are identified. To further illustrate the functional importance of WT1‐mediated transcriptional regulation during podocyte development, cultured and implanted patient‐derived kidney organoids derived from the Induced Pluripotent Stem Cell (iPSCs) of a patient with a heterozygous missense mutation in WT1 are generated. Results from single‐cell RNA sequencing (scRNA‐seq) and functional assays confirm that the WT1 mutation leads to delays in podocyte development and causes damage to cell structures, due to its failure to activate the targeting genes MAGI2, MYH9, and NPHS1. Notably, correcting the mutation in the patient iPSCs using CRISPR‐Cas9 gene editing rescues the podocyte phenotype. Collectively, this work elucidates the WT1‐related epigenomic landscape with respect to human podocyte development and identifies the disease‐causing role of a WT1 mutation.
Document Type: article
File Description: electronic resource
Language: English
ISSN: 2198-3844
Relation: https://doaj.org/toc/2198-3844
DOI: 10.1002/advs.202308556
Access URL: https://doaj.org/article/c27d86fd5254495eafc3a6bb5ecd4b4b
Accession Number: edsdoj.27d86fd5254495eafc3a6bb5ecd4b4b
Database: Directory of Open Access Journals
More Details
ISSN:21983844
DOI:10.1002/advs.202308556
Published in:Advanced Science
Language:English