Significant attenuation of experimental autoimmune encephalitis by C/EBPβ-transduced iTreg cells A CD4+ naïve T cells from Foxp3EGFP mice were transduced with control retrovirus (MIN) or retrovirus encoding C/EBPβ (MIN-C/EBPβ) and stimulated with anti-CD3 and anti-CD28 for 2 d in the presence of TGF-β, anti-IFN-γ and anti-IL-4 Abs.Figure 5CD4+ naïve T cells from Foxp3EGFP mice were transduced with control retrovirus (MIN) or retrovirus encoding C/EBPβ (MIN-C/EBPβ) and stimulated with anti-CD3 and anti-CD28 for 2 d in the presence of TGF-β, anti-IFN-γ and anti-IL-4 Abs. GFP+(Foxp3+) hNGFR+ T cells were sorted to high purity (0 hr) and restimulated with anti-CD3 and anti-CD28 for 2 d in the presence of IL-4, IL-6, IL-12 or none. Foxp3 expression was assessed based on GFP expression. Data are representative of two independent experiments with consistent results Flow cytometry of CFSE-labeled CD45.1+CD4+ T cells stimulated 3 d alone or together with CD45.2+GFP(Foxp3)+NGFR+-sorted CD4+ naïve T cells from Foxp3EGFP mice transduced with control retrovirus (Min) or retrovirus encoding C/EBPβ and cultured for 3 d in the presence of TGF-β, anti-IFN-γ and anti-IL-4 Abs. Histograms are gated for CD45.1+. The ratios shown are responder to suppressor. Data are representative of two independent experiments with consistent results EAE disease course of RAG2-/- mice that received CD45.1+2D2CD4+ naive T cells alone or together with CD4+GFP/Foxp3+ iTreg cells from CD45.1-2D2CD4+GFP(Foxp3)+ naïve T cells transduced with either control retrovirus (MIN) or retrovirus encoding C/EBPβ, cultured in the presence of TGF-β, anti-IFN-γ and anti-IL-4 Abs and sorted based on GFP/Foxp3 expression. The recipients were immunized with myelin oligodendrocyte glycoprotein peptide (100 ug) 1 d after transfer. Data show mean ± s.e.m of the EAE clinical score of 9 (day 1 to day 11), 5 (day 12 to day 16) or 4 (day 17 to day 20) mice of each group The percentage of IL-17-producing cells in CD45.1+Vβ11+ CD4+ T cells in the spinal cords 11 days after transfer Each symbol represents an individual mouse. Small horizontal lines indicate the mean (error bars, s.d) The absolute number of IL-17A+CD45.1+Vβ11+CD4+ T cells in the spinal cords 11 days after transfer. Each symbol represents an individual mouse. Small horizontal lines indicate the mean (error bars, s.d) Flow cytometry of Foxp3 staining of splenic cells. Histograms are gated for CD45.1-CD4+Vβ11+. Data are representative of two independent experiments with consistent results Body weight of RAG-2-/- mice after transfer with 5 x 105 CD45.1+CD4+CD45RBhigh cells alone (circles) or with 2 x 105 FACS-sorted CD45.1-CD4+GFP(Foxp3)+NGFR+ cells transduced with control retrovirus (Min)(filled rectangles) or retrovirus encoding C/EBPβ (empty rectangles) and cultured for 2 d in the presence of TGF-β, anti-IFN-γ and anti-IL-4 Abs. Each time point contains three mice in each group. Error bars represent mean ± s.e.m Hematoxylin and eosin staining of the distal colons of mice (Scale bars, 200μm) Hematoxylin and eosin staining of the distal colons of mice (Scale bars, 200μm) Histological scores. Each symbol represents an individual mouse. Small horizontal lines indicate the mean (error bars, s.e.m) The percentage of Foxp3+ cells in CD45.1-CD4+ T cells in colonic lamina propria 11 weeks after transfer