Development of a <sup>32</sup>P-Postlabeling/HPLC Method for Detection of Dehydroretronecine-Derived DNA Adducts in Vivo and in Vitro
作者:Ya-Chen Yang、Jian Yan、Mona Churchwell、Richard Beger、Po-Cheun Chan、Daniel R. Doerge、Peter P. Fu、Ming W. Chou
DOI:10.1021/tx000149o
日期:2001.1.1
Pyrrolizidinealkaloids are naturally occurring genotoxic chemicals produced by a large number of plants. Metabolism of pyrrolizidinealkaloids in vivo and in vitro generates dehydroretronecine (DHR) as a common reactive metabolite. In this study, we report the development of a (32)P-postlabeling/HPLC method for detection of (i) two DHR-3'-dGMP and four DHR-3'-dAMP adducts and (ii) a set of eight DHR-derived
Alkylation of nucleosides and nucleotides by dehydroretronecine; characterization of covalent adducts by liquid secondary ion mass spectrometry
作者:Palitha P. Wickramanayake、Brian L. Arbogast、Donald R. Buhler、Max L. Deinzer、Alma L. Burlingame
DOI:10.1021/ja00294a047
日期:1985.4
MATTOCKS, A. R.;JUKES, REBEKAH;BROWN, JANET, TOXICON, 27,(1989) N, C. 561-567
作者:MATTOCKS, A. R.、JUKES, REBEKAH、BROWN, JANET
DOI:——
日期:——
Pyrrolizidine Alkaloid Secondary Pyrrolic Metabolites Construct Multiple Activation Pathways Leading to DNA Adduct Formation and Potential Liver Tumor Initiation
作者:Qingsu Xia、Xiaobo He、Liang Ma、Shoujun Chen、Peter P. Fu
DOI:10.1021/acs.chemrestox.8b00096
日期:2018.7.16
(DHP)-derived DNA adducts. To date, the primary pyrrolic metabolites dehydro-PAs, their hydrolyzed metabolite DHP, and two secondary pyrrolic metabolites 7-glutathione-DHP (7-GS-DHP) and 7-cysteine-DHP are the known metabolites that can generate these DHP-DNA adducts in vivo and/or in PA-treated cells. Secondary pyrrolic metabolites are formed from the reaction of dehydro-PAs with glutathione, amino acids, and
High-Performance Liquid Chromatography Electrospray Ionization Tandem Mass Spectrometry for the Detection and Quantitation of Pyrrolizidine Alkaloid-Derived DNA Adducts <i>in Vitro</i> and <i>in Vivo</i>
作者:Peter P. Fu、Ming W. Chou、Mona Churchwell、Yuping Wang、Yuewei Zhao、Qingsu Xia、Gonçalo Gamboa da Costa、M. Matilde Marques、Frederick A. Beland、Daniel R. Doerge
DOI:10.1021/tx900402x
日期:2010.3.15
lizine (DHP)-derived DNAadducts that are responsible for tumor induction. The identification and quantitation of the DHP-derived DNAadducts formed in vivo and in vitro were accomplished previously by 32P-postlabeling/HPLC methodology. In this article, we report the development of a sensitive and specific liquid chromatography−electrospray ionization−tandem massspectrometry (HPLC-ES-MS/MS) method