Fig. 4From: Impaired activation of STAT5 upon IL-2 stimulation in Tregs and elevated sIL-2R in Sjögren’s syndromeThe phospho-flow cytometry results of two individual representatives of the respective subgroup are displayed. The histograms clearly display the bimodal STAT5 phosphorylation response to IL-2 in Tregs. Tregs from patients with SS achieved a lower STAT5 phosphorylation upon IL-2 stimulation compared with healthy controls, while Treg frequency remained stableBack to article page