FGFR4 and cancer: Susceptibility of asbestos-induced LC seems to be limited to dysregulation of ECM dynamics (and possibly to that of FGF19-FGFR4-induced EMT) while susceptibility to MPM seems more cancer-specific, retracing various aspects that have long been considered as key factors of asbestos-induced carcinogenesis: oxidative stress (with the novelty of heme involvement), chromosomal aberration due to nuclear–asbestos interaction, and EMT that both probably reflect the peculiarity of mesothelial cell cytoskeleton.