PGP and acute myeloid leukemia: Likewise, RSV chemosensitization to DOX is mediated by inhibition of MDR1/P-gp and Bcl-2 in ovarian cancer cells (OVCAR-3) (Rezk et al., 2006), acute myeloid leukemia (AML-2) (Kweon et al., 2010) and oral squamous cell carcinoma (KBv200) (Quan et al., 2008).