Furthermore, CXCR3 staining of renal biopsies from patients with ANCA vasculitis confirmed the existence of Treg1 cells in human GN and—in line with the murine findings—showed close co-localization of CXCR3+ Tregs with CXCR3+ T effector cells (Paust et al. 2016). This evidence concerns the gene CXCR3 and ganglioneuroma.