COL1A2 and idiopathic pulmonary fibrosis: Comparing healthy to IPF lungs, in lipofibroblasts collagen and ECM related genes were among the most differentially expressed, myofibroblasts expressed myosin heavy chain genes (MHY11) in IPF tissue and increased expression of other traditionally exclusive smooth muscle cells genes while in pericytes and Ebf1 fibroblasts CXCL chemokine and ECM related genes (COL1A2/4A1) were differentially expressed.