Indeed, Ccl28 is constitutively expressed in lung tissue collected from non-sensitized control mice, but increased Ccl28 levels were found in mice sensitized and challenged with cockroach antigen, suggesting that Ccl28 seems to regulate eosinophil recruitment to peri-bronchial regions of the lung and eosinophilia [238]. The gene discussed is CCL28; the disease is Increased total eosinophil count.