The common genes were enriched for signaling pathways relevant to IPF such as: ECM remodeling process, WNT, TGF-β, NFAT, IL-8 in angiogenesis, CCL2 signaling and PEDF signaling [8, 36, 38, 39] and network analyses of both datasets revealed similar networks suggesting that FFPE RNA-Seq generated information that was relevant to IPF and comparable if not perfectly identical to FF tissue. This evidence concerns the gene CCL2 and idiopathic pulmonary fibrosis.