Enhancement of Treg suppressive function by allosteric modification of TIP60. Enhancement of Treg suppressive function by allosteric modification of TIP60.

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Enhancement of Treg suppressive function by allosteric modification of TIP60. Enhancement of Treg suppressive function by allosteric modification of TIP60.

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Enhancement of Treg suppressive function by allosteric modification of TIP60. Enhancement of Treg suppressive function by allosteric modification of TIP60. The suppressive potency of murine Treg (CD4+Foxp3+ splenocytes) or human Treg (CD4+CD25HighCD127Low) was assessed in the presence or absence of SGF003. SGF003 was added at the time of activation. Suppression was measured as the reduction in proliferation of responder Teff cells (murine CD4+FOXP3−; human CD4+CD25−CD127High). (A) The effect of SGF003 treatment on the proliferative capacity and IFN-γ production of Teff cells cultured in the absence of Treg cells. (B) The suppressive potency of murine and human Treg cells in the presence of SGF003 at various Treg/Teff ratios. The percentages of improvement in Treg suppressive capacity obtained by comparing the suppressive potency of untreated versus SGF003 (8 μg/ml)–treated Treg cells are shown. (C) Effect of SGF003 on the suppressive potency of FOXP3WT-, FOXP3A384T-, or FOXP3R397W-transduced cells cocultured with CD4+CD25−CD127High Teff cells at a 1:4 Treg/Teff ratio. The results shown in this figure are representative of two to three independent experiments performed in triplicate. Statistical analyses were performed using t test (A) and one-way ANOVA (B and C). Khalid Bin Dhuban et al. Sci. Immunol. 2017;2:eaai9297 Copyright © 2017 The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science. No claim to original U.S. Government Works.