Figure 2.
Progressive glomerulosclerosis in podoCdc42−/− but not podoRac1−/− mice by light microscopy (PAS staining at 20× and 40× magnification). (A, B) Floxed control mice demonstrate normal tubulointerstitial and glomerular morphology at 3-4 weeks of age. (C, D) podoRac1−/− tubulointerstitial and glomerular morphology at 12 months of age is indistinguishable from control. Podocyte-specific loss of Cdc42 results in tubular protein casts and injury (E) as well as focal segmental glomerulosclerosis in a minority of glomeruli (F) at 3-4 weeks of age.