RNA-seq in primary human lung fibroblasts (hLF) isolated from control (n = 3) and IPF (n = 3) patients revealed increased expression levels of HMGA2, SUPT16H and SSRP1 in IPF patients when compared to control donors (Supplementary Fig. 10a). This evidence concerns the gene SSRP1 and idiopathic pulmonary fibrosis.