Adiponectin promotes functional recovery after podocyte ablation. Academic Article uri icon

abstract

  • Low levels of the adipocyte-secreted protein adiponectin correlate with albuminuria in both mice and humans, but whether adiponectin has a causative role in modulating renal disease is unknown. Here, we first generated a mouse model that allows induction of caspase-8-mediated apoptosis specifically in podocytes upon injection of a construct-specific agent. These POD-ATTAC mice exhibited significant kidney damage, mimicking aspects of human renal disease, such as foot process effacement, mesangial expansion, and glomerulosclerosis. After the initial induction, both podocytes and filtration function recovered. Next, we crossed POD-ATTAC mice with mice lacking or overexpressing adiponectin. POD-ATTAC mice lacking adiponectin developed irreversible albuminuria and renal failure; conversely, POD-ATTAC mice overexpressing adiponectin recovered more rapidly and exhibited less interstitial fibrosis. In conclusion, these results suggest that adiponectin is a renoprotective protein after podocyte injury. Furthermore, the POD-ATTAC mouse provides a platform for further studies, allowing precise timing of podocyte injury and regeneration.

published proceedings

  • J Am Soc Nephrol

altmetric score

  • 7

author list (cited authors)

  • Rutkowski, J. M., Wang, Z. V., Park, A., Zhang, J., Zhang, D., Hu, M. C., ... Scherer, P. E.

citation count

  • 116

complete list of authors

  • Rutkowski, Joseph M||Wang, Zhao V||Park, Ae Seo Deok||Zhang, Jianning||Zhang, Dihua||Hu, Ming Chang||Moe, Orson W||Susztak, Katalin||Scherer, Philipp E

publication date

  • February 2013