EGCG effected marked decreases in fibroblast (periostin, sFRP2) and epithelial (KRT17) genes that are upregulated in IPF as well as increased surfactant protein C (SFTPC) expression (Figure 4, F and G, and Supplemental Figure 5C). The gene discussed is SFTPC; the disease is idiopathic pulmonary fibrosis.