SFRP2 and idiopathic pulmonary fibrosis: Accordingly, we found several intramodular hubs (DCLK1, COMP, SFRP2, LTBP1, SULF1, CRABP2, CTHRC1, COL3A1, FHL2, COL15A1, COL18A1, CLMP, COL14A1, TSHZ2, VCAN, and SERPINF1) in the brown module that were upregulated in IPF lung myofibroblast cells [18] when compared to those from healthy controls (Supplementary Table S6).