These data are in line with the gene expression data from the TCGA consortium (https://www.cancer.gov/about-nci/organization/ccg/research/structural-genomics/tcga), where pleural mesothelioma tissue showed the second highest FGF18 expression after ovarian cancer across 32 cancer types when analyzed on the UALCAN portal (Figure S1).30 This evidence concerns the gene FGF18 and pleural mesothelioma.