ATG12 and leukemia: ↑ ATG5, ATG7, ATG12, LC3 in leukemia cells↑ caspase-3, -8, and -9, Bax, Fas, Fas-L in leukemia cells↑ peripheral macrophage phagocytosis↑ proliferation of T and B cells↑ numbers of T cells, B cells, monocytes, macrophages- NK cell numbers - unchanged