Allicin, a Potent New Ornithine Decarboxylase Inhibitor in Neuroblastoma Cells.
Allicin, a Potent New Ornithine Decarboxylase Inhibitor in Neuroblastoma Cells.
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DOI:
10.1021/acs.jnatprod.0c00613
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发表时间:
2020-08-28
影响因子:
5.1
通讯作者:
Bachmann, Andre S.
中科院分区:
文献类型:
--
作者:
Schultz, Chad R.;Gruhlke, Martin C. H.;Slusarenko, Alan J.;Bachmann, Andre S.
The natural product allicin is a reactive sulfur species (RSS) from garlic (Allium sativum L.). Neuroblastoma (NB) is an early childhood cancer arising from the developing peripheral nervous system. Ornithine decarboxylase (ODC) is a rate-limiting enzyme in the biosynthesis of polyamines, which are oncometabolites that contribute to cell proliferation in NB and other c-MYC/MYCN-driven cancers. Both c-MYC and MYCN directly transactivate the E-box gene ODC1, a validated anticancer drug target. We identified allicin as a potent ODC inhibitor in a specific radioactive in vitro assay using purified human ODC. Allicin was ~23000-fold more potent (IC50 = 11 nM) than DFMO (IC50 = 252 μM), under identical in vitro assay conditions. ODC is a homodimer with 12 cysteines per monomer, and allicin reversibly S-thioallylates cysteines. In actively proliferating human NB cells allicin inhibited ODC enzyme activity, reduced cellular polyamine levels, inhibited cell proliferation (IC50 9–19 μM), and induced apoptosis. The natural product allicin is a new ODC inhibitor and could be developed for use in conjunction with other anticancer treatments, the latter perhaps at a lower than usual dosage, to achieve drug synergism with good prognosis and reduced adverse effects.
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影响因子:
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DOI:
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发表时间:
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DOI:
10.1038/s41568-018-0050-3
发表时间:
2018-11
期刊:
Nature reviews. Cancer
影响因子:
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通讯作者:
Pegg AE