CD8A and vitiligo: Previous studies have shown that, compared with the healthy control group, the number of autoreactive CD8 + T cells is increased in both peripheral blood and skin of patients with vitiligo (Boniface et al. 2018; Mantovani et al. 2002; Ogg et al. 1998; Palermo et al. 2001; Van den Boorn et al. 2009).