Characterization of adducts formed in reactions of acrolein with thymidine and calf thymus DNA

Chemistry & Biodiversity
Agnieszka J Pawłowicz, Leif Kronberg

Abstract

Acrolein, an important industrial chemical and environmental contaminant, has been shown to interact with nucleic acids in vitro and in vivo. In this study, we examined the reactivity of acrolein towards thymidine and calf-thymus double- and single-stranded DNA in aqueous buffered solutions. LC-MS Analyses of the reaction mixture of acrolein with thymidine showed the formation of five structurally different adducts. The structures of the products were determined on the basis of mass spectrometry, UV absorbance, and (1)H- and (13)C-NMR spectroscopy. The adducts were identified as 3-(3-oxopropyl)thymidine (dT1), 3-[(tetrahydro-2,4-dihydroxypyran-3-yl)methyl]thymidine (dT2), 2-(hydroxymethyl)-5-(thymidin-3-yl)pent-2-enal (dT3), 3-hydroxy-2-methylidene-5-(thymidin-3-yl)pentanal (dT4), and 2-[(thymidin-3-yl)methyl]penta-2,4-dienal (dT5). The adducts dT2-dT5 were formed in reaction of dT1 with acrolein. In the reaction of acrolein with calf-thymus DNA, dT1 was the only adduct detected in the DNA hydrolysate.

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Citations

Jun 8, 2012·PloS One·Yoshiaki KitaguchiNorbert F Voelkel
Aug 26, 2015·MicrobiologyOpen·Robert A KanalyNatsuko Hamamura
Mar 10, 2011·International Journal of Cancer. Journal International Du Cancer·Pallavi Lonkar, Peter C Dedon
Jan 30, 2015·Toxicological Sciences : an Official Journal of the Society of Toxicology·Akshata MogheSwati Joshi-Barve
May 23, 2017·Nucleic Acids Research·Zhiyu YangKent S Gates
Jun 7, 2019·Molecular Carcinogenesis·Pallavi Kompella, Karen M Vasquez

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