CD4 and vitiligo: Compared with controls, the abundance of activated CD4+ and CD8+ T cells, immature dendritic cells and B cells, myeloid-derived suppressor cells (MDSCs), gamma delta T cells, mast cells, regulatory T cells (Tregs), and T helper 2 (Th2) cells in vitiligo was substantially higher than in controls, while monocytes, CD56-positive natural killer (NK) cells, and NK cells were considerably less abundant (Figure 8B).