A, CFSE-labeled CD4+ T cells from BDC2.5 or DO.11.10 mice were stimulated for 7 days with unloaded GMDC or G4DC from NOD or BALB/c mice, respectively, then stained for intracellular Foxp3. B&C, CFSE-labeled CD4+ T cells from NOD mice were stimulated for 7 days with G4DC (B) or GMDC (C) from NOD mice, +/− KV11 peptide, then stained for Foxp3 expression. The figures shown are representative of three similar experiments.