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  • Title: Magnolol induces apoptosis via activation of both mitochondrial and death receptor pathways in A375-S2 cells.
    Author: You Q, Li M, Jiao G.
    Journal: Arch Pharm Res; 2009 Dec; 32(12):1789-94. PubMed ID: 20162409.
    Abstract:
    Magnolol inhibited proliferation of human malignant melanoma A375-S2 cells. The drug induced oligonucleosomal fragmentation of DNA in A375-S2 cells and increased caspase-3, 8, 9 activities followed by the degradation of caspase-3 substrates, inhibitor of caspase dependent DNase (ICAD) and poly-(ADP-ribose) polymerase (PARP). Pan-caspase inhibitor (z-VADfmk), caspase-3 inhibitor (z-DEVD-fmk), capase-8 inhibitor (z-IETD-fmk), caspase-9 inhibitor (z-LEHD-fmk) and caspase-10 inhibitor (z-AEVD-fmk) inhibited magnolol-induced A375-S2 cell apoptosis. The level of anti-apoptotic mitochondrial protein Bcl-2 was up-regulated while the level of pro-apoptotic protein Bax was down-regulated. Taken together, our results indicate that magnolol induces apoptosis by activation of both mitochondrial and death receptor pathways in A375-S2 cells.
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