Second, while previous studies have observed only minimal expression differences between IPF and SSc fibroblasts, our study successfully identified 68 genes that were differentially expressed between them, including inflammation genes (TNFRSF21, CXCL5, IL8) and genes associated with the GO function “oxidoreductase activity” (Figure S2). Here, CXCL5 is linked to idiopathic pulmonary fibrosis.