To characterize ADAR expression in mesothelioma cells, we determined mRNA and protein levels across a panel of 19 human mesothelioma cell lines, one SV‐40 immortalized human mesothelial cell line (MeT5A) and primary cells from normal human mesothelium (SDM104, SDM58, and SDM77; Fig. 2A). Here, ADAR is linked to mesothelioma.