Mechanism of apoptosis in HL-60 cells induced by n-3 and n-6 polyunsaturated fatty acids 1 1Abbreviations: AA, arachidonic acid; CsA, cyclosporin A; Cyt.c, cytochrome c; DCFH-DA, 2′,7′-dichlorofluorescein diacetate; DPA, docosapentaenoic acid; EPA, eicosapentaenoic acid; HE, hydroethidine; JC-1, 5,5′,6,6′-tetrachloro-1,1′,3,3′-tetraethylbenzimidazol carbocyanine iodide; MPT, membrane permeability transition; PUFA, polyunsaturated fatty acid; ROS, reactive oxygen species; and z-VAD-fmk, z-Val-Ala-Asp(OMe)-fluoromethylketone.