This was accompanied by changes in the gene expression of adhesion molecules including CD44 (Table 1) and other molecules known to be chemoattractant molecules and receptors for mast cells such as CXCR4 (Table 1) and CCL2 (or MCP-1) (Supplementary Figures 3D–F) and with reported functions in mastocytosis (43–48). This evidence concerns the gene CXCR4 and mastocytosis.