Identification of renal stem cells in zebrafish.
basic_science · Level V
Where this comes from
- Record sourced from PubMed, PMID 40845090.
- Also identified by DOI 10.1126/sciadv.adx5296 and PMC identifier 12372851.
- Licence recorded as CC BY.
- The licence permits redistribution, so the abstract is shown in full and the full text is available from the publisher.
Abstract
Renal stem cells (RSC) hold great promise as kidney disease regenerative therapies. However, RSCs capable of regenerating de novo nephrons remain unidentified in vertebrates. Therefore, this study aimed to identify RSCs in zebrafish. Single-cell RNA sequencing revealed <i>eya2</i>, <i>pax2a</i>, and <i>six2a</i> as primary markers of zebrafish RSCs. Real-time imaging demonstrated that RSCs originated from <i>eya2</i>-positive mesenchymal cells. Notably, photoconversion-based lineage tracing and serial transplantation assays revealed a unique RSC renewal process, characterized by a differentiation-proliferation-dedifferentiation mode. This process generates nephrons and nascent RSCs concurrently. In addition, precise Wnt signaling is key for RSC renewal and differentiation balance and directly activates <i>eya2</i> expression to initiate renewal. This discovery establishes a foundation for the advancement of stem cell therapies for kidney diseases.
Medical subject headings
- Zebrafish
- Stem Cells
- Kidney