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dc.rights.licenseopenen_US
dc.contributor.authorDOUILLET, Delphine C.
dc.contributor.authorPINSON, Benoît
dc.contributor.authorCESCHIN, Johanna
dc.contributor.authorHÜRLIMANN, Hans C.
dc.contributor.authorSAINT-MARC, Christelle
dc.contributor.authorLAPORTE, Damien
dc.contributor.authorCLAVEROL, Stéphane
dc.contributor.authorKONRAD, Manfred
dc.contributor.authorBONNEU, Marc
dc.contributor.authorDAIGNAN-FORNIER, Bertrand
dc.date.accessioned2019
dc.date.available2019
dc.date.issued2019
dc.identifier.issn1083-351Xen_US
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/3810
dc.description.abstractEn5-Aminoimidazole-4-carboxamide 1-β-d-ribofuranoside (AICAR, or acadesine) is a precursor of the monophosphate derivative 5-amino-4-imidazole carboxamide ribonucleoside 5′-phosphate (ZMP), an intermediate in de novo purine biosynthesis. AICAR proved to have promising anti-proliferative properties, although the molecular basis of its toxicity is poorly understood. To exert cytotoxicity, AICAR needs to be metabolized, but the AICAR-derived toxic metabolite was not identified. Here, we show that ZMP is the major toxic derivative of AICAR in yeast and establish that its metabolization to succinyl-ZMP, ZDP, or ZTP (di- and triphosphate derivatives of AICAR) strongly reduced its toxicity. Affinity chromatography identified 74 ZMP-binding proteins, including 41 that were found neither as AMP nor as AICAR or succinyl-ZMP binders. Overexpression of karyopherin-β Kap123, one of the ZMP-specific binders, partially rescued AICAR toxicity. Quantitative proteomic analyses revealed 57 proteins significantly less abundant on nuclei-enriched fractions from AICAR-fed cells, this effect being compensated by overexpression of KAP123 for 15 of them. These results reveal nuclear protein trafficking as a function affected by AICAR.
dc.language.isoENen_US
dc.subject.enpurine
dc.subject.enyeast genetics
dc.subject.enyeast metabolism
dc.subject.ennucleoside/nucleotide analogue
dc.subject.enproteomics
dc.subject.endrug metabolism
dc.subject.ensmall molecule
dc.title.enMetabolomics and proteomics identify the toxic form and the associated cellular binding targets of the anti-proliferative drug AICAR
dc.title.alternativeJ. Biol. Chem.en_US
dc.typeArticle de revueen_US
dc.identifier.doi10.1074/jbc.RA118.004964
dc.subject.halChimie/Matériauxen_US
bordeaux.journalJournal of Biological Chemistryen_US
bordeaux.page805-815en_US
bordeaux.volume294en_US
bordeaux.hal.laboratoriesInstitut de Chimie & de Biologie des Membranes & des Nano-objets (CBMN) - UMR 5248
bordeaux.issue3en_US
bordeaux.institutionUniversité de Bordeauxen_US
bordeaux.peerReviewedouien_US
bordeaux.inpressnonen_US
hal.identifierhal-03181365
hal.version1
hal.date.transferred2021-03-25T14:33:41Z
hal.exporttrue
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