XPO1 and thymoma: Clinical studies have also attempted to explore the efficacy and safety of selinexor, which is a selective inhibitor of nuclear export, based on the results of human cell line testing, which showed Exportin 1 (XPO1) expression in two thymoma cell lines (IU-TAB1 and T1682) and three thymic carcinoma cell lines (Ty82, MP57, and T1889) [127].