IL17A and systemic sclerosis: To further extend and confirm our results showing increased intracellular expression of IL-17 and IFNγ in SSc, we next measured the levels of IL-17 and IFNγ in the supernatant of CD3+ T cells isolated from healthy controls (n = 5), lcSSc patients (n = 5), ldcSSc patients (n = 5) and edcSSc patients (n = 5).