Cited by 12Carcinogens and Genotoxicity AssessmentPharmacogenetics and Drug MetabolismEpigenetics and DNA Methylation

Ethanol and 4-methylpyrazole increase DNA adduct formation of furfuryl alcohol in FVB/N wild-type mice and in mice expressing human sulfotransferases 1A1/1A2

Sachse, Benjamin, Meinl, Walter, Glatt, Hansruedi, Monien, Bernhard H.·2016·Carcinogenesis

Abstract

Furfuryl alcohol (FFA) is a carcinogenic food contaminant, which is formed by acid- and heat-catalyzed degradation of fructose and glucose. The activation by sulfotransferases (SULTs) yields a DNA reactive and mutagenic sulfate ester. The most prominent DNA adduct, N(2)-((furan-2-yl)methyl)-2'-deoxyguanosine (N(2)-MF-dG), was detected in FFA-treated mice and also in human tissue samples. The dominant pathway of FFA detoxification is the oxidation via alcohol dehydrogenases (ADHs) and aldehyde dehydrogenases (ALDHs). The activity of these enzymes may be greatly altered in the presence of inhibitors or competitive substrates. Here, we investigated the impact of ethanol and the ADH inhibitor 4-methylpyrazole (4MP) on the DNA adduct formation by FFA in wild-type and in humanized mice that were transgenic for human SULT1A1/1A2 and deficient in the mouse (m) Sult1a1 and Sult1d1 genes (h1A1/1A2/1a1(-)/1d1(-)). The administration of FFA alone led to hepatic adduct levels of 4.5 N(2)-MF-dG/10(8) nucleosides and 33.6 N(2)-MF-dG/10(8) nucleosides in male and female wild-type mice, respectively, and of 19.6 N(2)-MF-dG/10(8) nucleosides and 95.4 N(2)-MF-dG/10(8) nucleosides in male and female h1A1/1A2/1a1(-)/1d1(-) mice. The coadministration of 1.6g ethanol/kg body weight increased N(2)-MF-dG levels by 2.3-fold in male and by 1.7-fold in female wild-type mice and by 2.5-fold in male and by 1.5-fold in female h1A1/1A2/1a1(-)/1d1(-) mice. The coadministration of 100mg 4MP/kg body weight had a similar effect on the adduct levels. These findings indicate that modulators of the oxidative metabolism, e.g. the drug 4MP or consumption of alcoholic beverages, may increase the genotoxic effects of FFA also in humans.

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Crossref · 10.1093/carcin/bgw006

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  • Free amino acid residues of proteins, lipids, nucleic acids, and nucleophilic molecules are major targets of adduct formation or covalent binding with reactive molecules such as acetaldehyde, acrolein, crotonaldehyde, formaldehyde, malondialdehyde, 4-hydroxynonenal, 8-hydroxydeoxyguanosine, N2-((furan-2-yl)methyl)-2′-deoxyguanosine, and N2-ethyl-2′-deoxyguanosine.

    “Free amino acid residues of proteins, lipids, nucleic acids, and nucleophilic molecules are major targets of adduct formation or covalent binding with reactive molecules such as acetaldehyde, acrolein, crotonaldehyde, formaldehyde, malondialdehyde, 4-hydroxynonenal, 8-hydroxydeoxyguanosine, N2-((furan-2-yl)methyl)-2′-deoxyguanosine, and N2-ethyl-2′-deoxyguanosine164–166.”

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Authors
Sachse, B., Meinl, W., Glatt, H., & Monien, B. H.
Affiliations
  • German Institute of Human Nutrition (DE)
  • German Federal Institute for Risk Assessment (BfR) (DE)
Corresponding author
Monien, Bernhard H.
Venue
Carcinogenesis
Published
2016-01-16
Volume
37
Issue
3
Pages
314-319
ISSN
  • 0143-3334 (ISSN-L)
  • 1460-2180
OpenAlex
W2266457389
Cited by
12
References
39
Citations by year
2025: 1 · 2024: 2 · 2022: 1 · 2021: 1 · 2020: 1 · 2019: 1 · 2018: 2 · 2017: 1 · 2016: 2
FWCI
0.83
Type
journal article
Language
en
Open access
closed
Locations
  • Carcinogenesis (publishedVersion)
  • PubMed (publishedVersion)
  • HighWire Press Open Archive (submittedVersion)
  • OpenAgrar (submittedVersion)
Funders
Deutsche Forschungsgemeinschaft
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cancer Research › Carcinogens and Genotoxicity Assessment
  • Life Sciences › Pharmacology, Toxicology and Pharmaceutics › Pharmacology › Pharmacogenetics and Drug Metabolism
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Epigenetics and DNA Methylation
Keywords
furfuryl alcohol, DNA adduct formation, sulfotransferase, humanized mice, ethanol, 4-methylpyrazole, alcohol dehydrogenase inhibition, aldehyde dehydrogenase, food contaminants, DNA adducts, SULT1A1
MeSH terms
Fomepizole, Ethanol, Animals, Chromatography, Liquid, DNA Damage, Female, Furans, Humans, Liver, Male, Mice, Inbred Strains, Mice, Transgenic, Mutagens, Pyrazoles, Arylsulfotransferase, DNA Adducts, Mice, Tandem Mass Spectrometry

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