However, in all patients with JIA, SF CCR7+ memory CD4+ T cells showed a higher expression of CXCR3 (median 86%, range 74–93%) than the CCR7- counterpart (median 76%, range 62–85, P = 0.005) (Fig. 1b,d). This evidence concerns the gene CXCR3 and juvenile idiopathic arthritis.