Meanwhile, the “hsa04060: cytokine–cytokine receptor interaction’ pathway, including the CCL4, CSF1R, CXCR4, FLT1, and IL7 genes, could be highly associated with immune regulation and is strongly suspected to be involved in the pathogenesis of sarcoidosis (5, 48, 49). This evidence concerns the gene CXCR4 and sarcoidosis.