In the next step we analysed the TARC (CCL17)/IP-10 (CXCL10) ratio in our patient cohort as well as in cell culture, because a study by Kishi and colleagues revealed an elevated TARC (CCL17)/IP-10 (CXCL10) ratio in patients suffering from lung fibrosis. The gene discussed is CXCL10; the disease is pulmonary fibrosis.