Abstract
Based on the potential therapeutic value in targeting mitochondria and the fluorophore tracing ability, a fluorescent mitochondria-targeted organic arsenical PDT-PAO-F16 was fabricated, which not only visualized the cellular distribution, but also exerted anti-cancer activity in vitro and in vivo via targeting pyruvate dehydrogenase complex (PDHC) and respiratory chain complexes in mitochondria. In details, PDT-PAO-F16 mainly accumulated into mitochondria within hours and suppressed the activity of PDHC resulting in the inhibition of ATP synthesis and thermogenesis disorder. Moreover, the suppression of respiratory chain complex I and IV accelerated the mitochondrial dysfunction leading to caspase family-dependent apoptosis. In vivo, the acute promyelocytic leukemia was greatly alleviated in the PDT-PAO-F16 treated group in APL mice model. Our results demonstrated the organic arsenical precursor with fluorescence imaging and target-anticancer efficacy is a promising anticancer drug.
Keywords:
Arsenic; PDHC; apoptosis; leukemia; mitochondria.
© 2020 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim.
Publication types
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Research Support, Non-U.S. Gov't
MeSH terms
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Animals
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Antineoplastic Agents / chemical synthesis
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Antineoplastic Agents / chemistry
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Antineoplastic Agents / pharmacology*
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Apoptosis / drug effects*
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Arsenicals / chemical synthesis
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Arsenicals / chemistry
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Arsenicals / pharmacology*
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Cell Line, Tumor
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Cell Proliferation / drug effects
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Cell Survival / drug effects
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Dose-Response Relationship, Drug
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Drug Screening Assays, Antitumor
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Electron Transport / drug effects*
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Enzyme Inhibitors / chemical synthesis
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Enzyme Inhibitors / chemistry
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Enzyme Inhibitors / pharmacology*
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Female
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Humans
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Leukemia, Promyelocytic, Acute / drug therapy*
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Leukemia, Promyelocytic, Acute / metabolism
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Leukemia, Promyelocytic, Acute / pathology
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Mice
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Mice, Inbred C57BL
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Mitochondria / drug effects
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Mitochondria / metabolism
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Molecular Structure
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Neoplasms, Experimental / drug therapy
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Neoplasms, Experimental / metabolism
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Neoplasms, Experimental / pathology
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Pyruvate Dehydrogenase Complex / antagonists & inhibitors*
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Pyruvate Dehydrogenase Complex / metabolism
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Reactive Oxygen Species / metabolism
Substances
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Antineoplastic Agents
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Arsenicals
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Enzyme Inhibitors
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Pyruvate Dehydrogenase Complex
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Reactive Oxygen Species