CXCL10 and vitiligo: In contrast, CXCR3B is coupled to the Gαs subunit and β-arrestin signaling [23,24,25], and the expression of CXCR3B in the melanocytes of patients with vitiligo is related to the apoptosis of melanocytes in early stages of the pathology by the stimulus of CXCL10 excreted by innated lymphoid cells [29].