Thus, we recorded, by flow cytometry, %Vδ1+ and Vγ9+ γδ T cells among the CD3+ lymphocytes in PBMC derived from SSc patients and HC and the percentage of CD25+ T cells within each subset, after brief in vitro culture in medium containing a low dose of IL-2 (100 IU/ml, FMIL-2). The gene discussed is IL2; the disease is systemic sclerosis.