COL1A1 and idiopathic pulmonary fibrosis: Consistent with the public scRNA-seq data, our mRNA expressions of OGT, MGEA5, GFPT1, COL1A1, COL3A1, ACTA2, and TGFB1 from IPF human lung fibroblasts (HLFs) were all significantly increased compared to non-IPF donors (Figures 1D-J).