Camptothecin and khat (Catha edulis Forsk.) induced distinct cell death phenotypes involving modulation of c-FLIPL, Mcl-1, procaspase-8 and mitochondrial function in acute myeloid leukemia cell lines - Bredholt, T; Dimba, E A; Hagland, H R; Wergeland, L; Skavland, J; Fossan, K O; Tronstad, K J; Johannessen, A C; Vintermyr, O K; Gjertsen, B T (Mol Cancer, 2009)