TGFB1 and idiopathic pulmonary fibrosis: Further, cross-analysis of RNA-seq in primary hLF isolated from control and IPF patients44 with RNA-seq in Hmga2 + /+ MEF that were non-treated or treated with TGFB (Fig. 9a) allowed us to identify 923 orthologue genes that were at least 1.5 fold significantly increased (P ≤ 0.05) in IPF hLF and in TGFB treated MEF when compared to the corresponding control cells.