KIT and glomerular disorder: However, FPW was significantly lower in the kidney-derived c-kit+ progenitor/stem cell and MSC-treated groups compared to the saline group at day 21 (Fig. 2B; *P = 0.03 and *P = 0.047, respectively), highlighting an important aspect of progenitor/stem cell therapy for glomerular disease (Fig. 2C,D).