CD8A and pancreatic neoplasm: Selenoprotein P 1 (SEPP1), a member of the selenoprotein family of selenium transporter proteins and antioxidant enzymes, with a cluster of differentiation 8 (CD8)+ T cell abundance, could be acetylated by KAT8 at lysines 247 and 249, which enhanced CD8+ T cell activity and antitumor immunity in pancreatic cancer [17,18].