| The effect of potassium diazoacetate on human peripheral lymphocytes, human adenocarcinoma Colon caco-2 cells, and rat primary colon cells in the comet assay. | |
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MedLine Citation:
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PMID: 10332810 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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In previous studies, N-(N'-acetyl-L-propyl)-N-nitrosoglycine (APNG) has been shown to be a potent mutagen in a variety of genotoxicity assays and a carcinogen in a limited cancer study. APNG decomposes to a carboxymethyldiazonium ion, which can also be generated from potassium diazoacetate (KDA). KDA is particularly interesting because it is a stable nitrosated derivative of glycine, one of the most common dietary amino acids. KDA has been shown to produce more O6 carboxymethyl- and O6 methyl-adducts than APNG, so it was anticipated that it might also be a potent genotoxic agent. Thus in the present study KDA has been investigated in the single cell gel electrophoresis (Comet) assay, which primarily measures DNA strand breakage. Since KDA has been shown to be formed in the gut, the genotoxic effects of KDA were investigated in vitro in human adenocarcinoma colon Caco-2 cells, and in rat primary colon cells and compared to responses from human peripheral lymphocytes. KDA induced DNA damage in the three cell types, confirming that KDA is genotoxic in a range of mammalian cells. |
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Authors:
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D Anderson; R J Hambly; T W Yu; F Thomasoni; D E Shuker |
Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
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Title: Teratogenesis, carcinogenesis, and mutagenesis Volume: 19 ISSN: 0270-3211 ISO Abbreviation: Teratog., Carcinog. Mutagen. Publication Date: 1999 |
Date Detail:
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Created Date: 1999-08-11 Completed Date: 1999-08-11 Revised Date: 2006-11-15 |
Medline Journal Info:
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Nlm Unique ID: 8100917 Medline TA: Teratog Carcinog Mutagen Country: UNITED STATES |
Other Details:
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Languages: eng Pagination: 137-46 Citation Subset: IM |
Affiliation:
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BIBRA International, Carshalton, Surrey, United Kingdom. |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Adult Animals Azo Compounds / pharmacology* Caco-2 Cells Cells, Cultured Colon / drug effects* DNA Damage* Dose-Response Relationship, Drug Electrophoresis Female Glycine / analogs & derivatives*, pharmacology Humans Lymphocytes / drug effects, ultrastructure* Mutagenicity Tests* Rats |
| Chemical | |
Reg. No./Substance:
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0/Azo Compounds; 0/potassium diazoacetate; 56-40-6/Glycine |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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