When indomethacin (1 or 10 μM) was added to basal-like cells, PGE2 secretion was completely abolished (Figure 6B) and basal-like cell−/+indomethacin-CM failed to upregulate HGF secretion in IPF fibroblasts (n = 4) (Figure 6C). This evidence concerns the gene HGF and idiopathic pulmonary fibrosis.