IL17A and systemic sclerosis: CD25+FoxP3+IL17+ cells among CD4+ cells were also more numerous in SSc patients than in healthy individuals (0.069±0.038 vs. 0.022±0.015, respectively; p = 0.001), but SSc patients and controls had similar levels of CD25+FoxP3+IL17− cells (3.16±0.68 vs. 1.99±0.83, respectively; p = 0.074; Figures 4C and 4D).