Expanded Analysis of Benzo[<i>a</i>]pyrene−DNA Adducts Formed in Vitro and in Mouse Skin: Their Significance in Tumor Initiation
作者:Liang Chen、Prabu D. Devanesan、Sheila Higginbotham、Freek Ariese、Ryszard Jankowiak、Gerry J. Small、Eleanor G. Rogan、Ercole L. Cavalieri
DOI:10.1021/tx960004a
日期:1996.1.1
expanded analyses of benzo[a]pyrene (BP)-DNA adductsformed in vitro by activation with horseradishperoxidase (HRP) or 3-methylcholanthrene-induced rat liver microsomes and in vivo in mouse skin. The adductsformed by BP are compared to those formed by BP-7,8-dihydrodiol and anti-BP diol epoxide (BPDE). First, activation of BP by HRP produced 61% depurinating adducts: 7-(benzo[a]pyrene-6-yl)guanine
Synthesis of Adducts Formed by Iodine Oxidation of Aromatic Hydrocarbons in the Presence of Deoxyribonucleosides and Nucleobases
作者:Aaron A. Hanson、Eleanor G. Rogan、Ercole L. Cavalieri
DOI:10.1021/tx980127q
日期:1998.10.1
hydrocarbons (PAH) undergo two main pathways of metabolicactivation related to the initiation of tumors: one-electronoxidation to give radical cations and monooxygenation to yield bay-region diol epoxides. Synthesis of standard adducts is essential for identifying biologically formed adducts. Until recently, radical cation adducts were synthesized by oxidation of the PAH in an electrochemical apparatus