Homoharringtonine mediates myeloid cell apoptosis via upregulation of pro-apoptotic bax and inducing caspase-3-mediated cleavage of poly(ADP-ribose) polymerase (PARP) - Yinjun,L.; Jie,J.; Weilai,X.; Xiangming,T. (Am J Hematol, 2004)