We also noted a statistically significant increase in central memory CXCR5+CCR6–CXCR3– follicular Th cells, as wells as effector memory CXCR5+CCR6–CXCR3– and CXCR5+CCR6+CXCR3– follicular Th cells in both groups of patients with sarcoidosis vs. healthy controls. This evidence concerns the gene CCR6 and sarcoidosis.