Comparative single-cell analyses identify shared and divergent features of human and mouse kidney development

Area of Science:

• Developmental Biology
• Genomics
• Comparative Medicine

Background:

• Mammalian kidney development involves complex cellular interactions between nephrons and collecting systems, originating from distinct progenitor cells.
• Understanding conserved and divergent developmental pathways is crucial for insights into kidney function and disease.

Approach:

• Chromatin accessibility (ATAC-seq) and gene expression (RNA-seq) were profiled in developing human and mouse kidneys.
• Data were integrated into a cross-species multimodal dataset for comparative analysis.
• Species- and cell-type specific regulatory programs were identified by analyzing chromatin organization and gene activity.

Key Points:

• Comparative analysis revealed conserved and divergent features in chromatin organization and gene activity during kidney development.
• Identification of species-specific regulatory programs offers insights into evolutionary differences.
• Human-specific enhancer regions associated with kidney disease were identified through genome-wide association studies (GWAS).

Conclusions:

• Developmental modeling provides a powerful approach to understanding kidney disease mechanisms.
• Cross-species comparative genomics can uncover fundamental principles of organ development.
• This research offers potential clinical insights by linking developmental pathways to human kidney pathologies.