Cited by 591Advanced Glycation End Products researchMicrobial metabolism and enzyme functionPotato Plant Research

Pharmacology of methylglyoxal: formation, modification of proteins and nucleic acids, and enzymatic detoxification-A role in pathogenesis and antiproliferative chemotherapy

Thornalley, Paul J.·1996·General Pharmacology: The Vascular System

Abstract

1. Methylglyoxal is a reactive alpha-oxoaldehyde and physiological metabolite formed by the fragmentation of triose-phosphates, and by the metabolism of acetone and aminoacetone. 2. Methylglyoxal modifies guanylate residues to form 6,7-dihydro-6,7-dihydroxy-6-methyl-imidazo[2,3-b]purine-9(8)one and N2-(1-carboxyethyl)guanylate residues and induces apoptosis. 3. Methylglyoxal modifies arginine residues in proteins to form N(delta)-(4,5-dihydroxy-4-methylimidazolidin-2-yl) ornithine, N(delta)-(5-hydro-5-methylimidazol-4-on-2-yl)ornithine and N(delta)-(5)methylimidazol-4-on-2-yl)ornithine residues. 4. Methylglyoxal-modified proteins undergo receptor-mediated endocytosis and lysosomal degradation in monocytes and macrophages, and induce cytokine synthesis and secretion. 5. Methylglyoxal is detoxified by the glyoxalase system. Decreased detoxification of methylglyoxal may be induced pharmacologically by glyoxalase I inhibitors which have anti-tumor and anti-malarial activities. 6. The modification of nucleic acids and protein by methylglyoxal is a signal for their degradation and may have a role in the development of diabetic complications, atherosclerosis, the immune response in starvation, aging and oxidative stress.

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Crossref · 10.1016/0306-3623(95)02054-3

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Authors
Thornalley, P. J.
Affiliations
University of Essex (GB)
Corresponding author
Thornalley, Paul J.
Venue
General Pharmacology: The Vascular System
Publisher
Elsevier BV
Published
1996-06
Volume
27
Issue
4
Pages
565-573
ISSN
0306-3623 (ISSN-L)
OpenAlex
W1973924126
Cited by
591
References
73
Citations by year
2026: 10 · 2025: 12 · 2024: 16 · 2023: 13 · 2022: 24 · 2021: 13 · 2020: 23 · 2019: 19 · 2018: 26 · 2017: 30 · 2016: 22 · 2015: 33 · 2014: 26 · 2013: 21 · 2012: 29
FWCI
2.10
Type
journal article
Language
en
Open access
closed
Locations
  • General Pharmacology The Vascular System (publishedVersion)
  • PubMed (publishedVersion)
Funders
Wellcome Trust
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Clinical Biochemistry › Advanced Glycation End Products research
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Microbial metabolism and enzyme function
  • Life Sciences › Agricultural and Biological Sciences › Food Science › Potato Plant Research
Keywords
methylglyoxal, advanced glycation end products, protein modification, nucleic acid modification, apoptosis, arginine modification, lysosomal degradation, cytokine production, monocytes/macrophages, diabetes complications, oxidative stress, alpha-oxoaldehydes
MeSH terms
Animals, Antineoplastic Agents, Biotransformation, Humans, Neoplasms, Nucleic Acids, Proteins, Pyruvaldehyde

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