CXCR7 is reported to participate in the induction of monocytes recruitment in allergic inflammation, hematopoietic stem and progenitor cells (HSPC) cycling, as well as B-lymphocyte and tumor cell migration (Alampour-Rajabi et al., 2015; Tarnowski et al., 2010; Torossian et al., 2014; Chang et al., 2018). This evidence concerns the gene ACKR3 and neoplasm.