PGP and acute myeloid leukemia: Resveratrol has been shown to inhibit the expression of MDR1 (or P-gp) in CCRF-CEM cells [70], arabinoside antimetabolite (Ara-C)-resistant AML-2/WT cells and doxorubicin resistant acute myeloid leukaemia cell lines (AML-2/DX30, AML-2/DX100 and AML-2/DX300) [100].