2-Aminofluorene-DNA adduct levels in tumor-target and nontarget organs of rapid and slow acetylator Syrian hamsters congenic at the NAT2 locus.
2-Aminofluorene-DNA adduct levels in tumor-target and nontarget organs of rapid and slow acetylator Syrian hamsters congenic at the NAT2 locus.
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NAT2 基因座同源的快速和慢速乙酰化叙利亚仓鼠的肿瘤靶器官和非靶器官中 2-氨基芴-DNA 加合物水平。
DOI:
10.1006/taap.1996.0281
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发表时间:
1996
期刊:
影响因子:
--
通讯作者:
Hein,DW
中科院分区:
文献类型:
--
作者:
Feng,Y;Jiang,W;Hein,DW
DNA adduct formation is an important initial event in chemicalcarcinogenesis. Metabolic activation and deactivation pathways are involved in aromatic amine carcinogenesis, and genetic polymorphism in theN-acetyltransferase 2 (NAT2) gene is associated with differential susceptibility to cancer from aromatic amine chemicals. In the present study, aromatic amine-DNA adduct levels were measured in rapid (Bio. 82.73/H-Patr) and slow (Bio. 82.73/H-Pats) acetylator Syrian hamsters congenic at the NAT2 locus following a single injection of 2-aminofluorene (60 mg/kg). The major DNA adduct,N-(deoxyguanosin-8-yl)-2-aminofluorene (C8-AF), was detected and quantitated by32P-postlabeling assay at 6, 18, 24, 36, and 48 hr postinjection. Peak levels of C8-AF were achieved at 18-36 hr post-injection in both rapid and slow acetylators. C8-AF levels were significantly higher in tumor-target organs (liver and urinary bladder) than in nontarget organs (heart, colon, and prostate). Significant differences in C8-AF levels between rapid and slow acetylators in liver, heart, colon, and prostate were not observed. However, C8-AF levels in urinary bladder were significantly (four-fold) higher in rapid versus slow acetylators. These results suggest that 2-aminofluorene forms significantly higher levels of DNA adducts in tumor-target organs than in non-target organs and that acetyltransferase polymorphism plays a significant role in 2-aminofluorene-DNA adduct formation in urinary bladder of Syrian hamster.
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DOI:
--
发表时间:
1989
期刊:
Drug metabolism and disposition: the biological fate of chemicals
影响因子:
--
作者:
Yerokun,T;Kirlin,WG;Trinidad,A;Ferguson,RJ;Ogolla,F;Andrews,AF;Brady,PK;Hein,DW
通讯作者:
Hein,DW
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1959
期刊:
Journal of the National Cancer Institute
影响因子:
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1983
期刊:
Teratogenesis, carcinogenesis, and mutagenesis (Print)
影响因子:
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通讯作者:
L. Ehrenberg
DOI:
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发表时间:
1996
影响因子:
11.1
作者:
N. Rothman;V. K. Bhatnagar;R. Hayes;T. Zenser;S. Kashyap;M. Butler;D. Bell;V. Lakshmi;M. Jaeger;R. Kashyap;A. Hirvonen;P. Schulte;M. Dosemeci;F. Hsu;D. J. Parikh;B. Davis;G. Talaska
通讯作者:
G. Talaska
DOI:
10.1097/00008571-199602000-00004
发表时间:
1996-02
期刊:
Pharmacogenetics
影响因子:
--
作者:
R. J. Ferguson;M. Doll;T. Rustan;David W. Hein
通讯作者:
R. J. Ferguson;M. Doll;T. Rustan;David W. Hein