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Journal of Environmental Pathology, Toxicology and Oncology
Fator do impacto: 1.241 FI de cinco anos: 1.349 SJR: 0.519 SNIP: 0.613 CiteScore™: 1.61

ISSN Imprimir: 0731-8898
ISSN On-line: 2162-6537

Journal of Environmental Pathology, Toxicology and Oncology

DOI: 10.1615/JEnvironPatholToxicolOncol.v21.i1.10
31 pages

Mechanisms of Carcinogenicity of Aryl Hydrazines, Aryl Hydrazides, and Arenediazonium Ions

Jeannine H. Powell
Department of Basic Pharmaceutical Sciences, School of Pharmacy, West Virginia University, Moreantown, WV
Peter M. Gannett
Department of Basic Pharmaceutical Sciences, School of Pharmacy, West Virginia University, Moreantown, WV.

RESUMO

Aryl hydrazines carcinogenesis has been studied for over 25 years and remains poorly understood, although most aryl hydrazines are toxic, tumorigenic, or carcinogenic. In this article, aryl hydrazine cardnogenesis is reviewed comprehensively. The relevant chemistry and biochemistry of aryl hydrazines are first addressed and provide the framework for understanding how aryl hydrazines are metabolized, the reactive intermediates that are produced, and the biological reactive intermediates and products that are formed. Issues of DNA damage, mutagenicity, and enzyme activation are next addressed followed by a brief review of aryl hydrazine tumorigenicity studies. Because several related substrates are metabolized to the same intermediates as are aryl hydrazines, they are briefly discussed. The review concludes with a short discussion of the possible mechanism of cardnogenesis by aryl hydrazines.


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