ADAR and idiopathic pulmonary fibrosis: ADAR1-p110 isoform in IPF fibroblasts (n = 10) was downregulated (** p = 0.008, Figure 1A), whereas ADAR1-p150 isoform was overexpressed (*** p = 0.00054; Figure 1B), compared with control fibroblasts (n = 10).