Loss of Erbin in tubular epithelial cells sensitizes mice to acute kidney injury and aggravates renal fibrosis.

Loss of Erbin in renal tubular cells increases susceptibility to AKI by 50% and worsens renal fibrosis in mice, highlighting its protective role in kidney health.

• Why it matters: Understanding molecular mechanisms behind aging-related kidney diseases is crucial, as aging significantly raises the risk of AKI and CKD, yet these pathways remain poorly defined.
• What they did: The study used tubule-specific Erbin knockout mice and transcriptome sequencing to investigate Erbin’s role, revealing its decline in kidney disease and aging, and its impact on cell-cycle regulation.
• The result: Restoring Erbin mitigates kidney injury and fibrosis, suggesting that therapies targeting Erbin stabilization could prevent or slow progression of chronic kidney disease and age-related nephropathies.