Levels of CCL20 were significantly increased in patients with active UC (n = 19) compared to active CC (n = 21) but no statistically significant differences in CCL20 or CXCL8 between patients with active UC and active LC (n = 11) were observed (Figure 4D and E). The gene discussed is CXCL8; the disease is laryngotracheoesophageal cleft.