MAP3K7 and Oral leukoplakia: Zhou et al. suggest that lncRNA IFITM4P enhances PD-L1 expression to activate the immunosuppressive program in oral leukoplakia cells by facilitating the binding of SAM and SH3 domain containing protein 1 (SASH1) to phosphorylate transforming growth factor-beta-activated kinase 1 (TAK1) [48].