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Updated: Jan 10, 2026
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Application of Laser Microdissection to Uncover Regional Transcriptomics in Human Kidney Tissue
Published on: June 9, 2020
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Integration of spatial and single-nucleus transcriptomics to map gene expression in the developing mouse kidney.
Christopher P Chaney1,2,3, Alexandria N Fusco1,3, Elyse D Grilli1,3
1Department of Internal Medicine, Division of Nephrology, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA.
Development (Cambridge, England)
|November 26, 2025
Summary
This study maps kidney cell gene expression, revealing new insights into kidney development and congenital defects. A new tool, KSTAT, helps visualize cell communication and gene activity in the developing kidney.
Area of Science:
- Developmental Biology
- Genomics
- Cell Biology
Background:
- Kidney development involves complex cellular interactions, and defects can lead to kidney disease.
- Understanding these mechanisms is crucial for addressing congenital kidney disorders.
- RNA sequencing reveals cellular diversity, particularly in the kidney stroma, but cell relationships are unclear.
Purpose of the Study:
- To create a comprehensive gene expression atlas of embryonic and postnatal kidneys.
- To clarify the relationships between stromal, epithelial, and endothelial cells during kidney development.
- To develop a tool for analyzing spatial transcriptomics in the kidney.
Main Methods:
- Integrated single-nucleus and in situ RNA sequencing data from embryonic and postnatal kidneys.
- Developed the Kidney Spatial Transcriptome Analysis Tool (KSTAT) for cell identification, communication prediction, and pathway mapping.
- Analyzed gene expression patterns to understand cellular heterogeneity and interactions.
Main Results:
- Generated a detailed gene expression atlas of the developing and mature kidney.
- Uncovered significant heterogeneity within embryonic kidney pericytes.
- KSTAT successfully enabled visualization of cell locations and predicted cell-cell communication pathways.
Conclusions:
- The gene expression atlas provides a valuable resource for kidney development research.
- The identified pericyte heterogeneity offers new avenues for studying kidney formation.
- KSTAT is a powerful tool for advancing kidney developmental biology and disease research.
