CCR5 and keloid: The relationship between CCR5 expression levels and immune cell abundance was analyzed, which showed that CCR5 was positively correlated with Th1 (r=0.91, P<0.001), Th2 (r=0.89, P<0.001) and Th17 cells (r=0.74, P=0.014) in keloid samples from GSE158395 (Figures 7A–C).