(A) Gating strategy for the subsets of interest on which CD2 expression was assessed. (B,C) Median fluorescence intensity of CD2 (using Siplizumab and the commercially available clone RPA-2.10) among T-cell subsets (mean ± SD); * p < 0.05 compared to rTreg, n = 10 unique donors (repeated-measures ANOVA and Tukey’s multiple comparisons test). Significant differences in selected additional comparisons:
- [Siplizumab] CD4+ Naïve vs Central Memory: p < 0.0001 – CD4+ Naïve vs Effectory Memory p = 0.0004 – CD8+ Naïve vs Central Memory: p < 0.0001 – CD8+ Naïve vs Effectory Memory p = 0.0047 – nsTregs vs CD4+ Central Memory: p = 0.0116 – nsTregs vs CD4+ Effector Memory: p = 0.0016 – nsTregs vs CD8+ Central Memory: p = 0.0003 – nsTregs vs CD8+ Effector Memory: p = 0.0459 – aTregs vs CD4+ Effector Memory: p = 0.0249.
- [RPA-2.10] CD4+ Naïve vs Central Memory: p < 0.0001 – CD4+ Naïve vs Effectory Memory p < 0.0001 – CD8+ Naïve vs Central Memory: p < 0.0001 – CD8+ Naïve vs Effectory Memory p = 0.0003 – nsTregs vs CD4+ Central Memory: p = 0.0025 – nsTregs vs CD4+ Effector Memory: p = 0.0006 – nsTregs vs CD8+ Central Memory: p = 0.0019 – nsTregs vs CD8+ Effector Memory: p = 0.0092 – aTregs vs CD4+ Effector Memory: p = 0.0154.