IFNG and vitiligo: To further understand this CXCL10-induced death mechanism, we pre-treated healthy and vitiligo melanocytes with IFNγ prior to CXCL10 and QVd stimulation, and using FACS, we have demonstrated CXCL10 to significantly increase the percentage of AnnexinV + DAPI+ apoptotic cells in both healthy (2.7–9.4%) and vitiligo melanocytes (5.9–36.2%) (Fig. 4g).