Cited by 21Advanced Glycation End Products researchPharmacogenetics and Drug MetabolismDrug-Induced Hepatotoxicity and Protection

Inhibition of CYP2E1 leads to decreased advanced glycated end product formation in high glucose treated ADH and CYP2E1 over-expressing VL-17A cells

Swaminathan, Kavitha, Kumar, S. Mathan, Clemens, Dahn L., Dey, Aparajita·2013·Biochimica et Biophysica Acta (BBA) - General Subjects

Abstract

Background In recent years, there has been a growing interest to explore the association between liver injury and diabetes. Advanced glycated end product (AGE) formation which characterizes diabetic complications is formed through hyperglycemia mediated oxidative stress and is itself a source for ROS. Further, in VL-17A cells over-expressing ADH and CYP2E1, greatly increased oxidative stress and decreased viability have been observed with high glucose exposure.Methods In VL-17A cells treated with high glucose and pretreated with the different inhibitors of ADH and CYP2E1, the changes in cell viability, oxidative stress parameters and formation of AGE, were studied.Results Inhibition of CYP2E1 with 10μM diallyl sulfide most effectively led to decreases in the oxidative stress and toxicity as compared with ADH inhibition with 2mM pyrazole or the combined inhibition of ADH and CYP2E1 with 5mM 4-methyl pyrazole. AGE formation was decreased in VL-17A cells when compared with HepG2 cells devoid of the enzymes. Further, AGE formation was decreased to the greatest extent with the inhibitor for CYP2E1 suggesting that high glucose inducible CYP2E1 and the consequent ROS aid AGE formation.Conclusions Thus, CYP2E1 plays a pivotal role in the high glucose induced oxidative stress and toxicity in liver cells as observed through direct evidences obtained utilizing the different inhibitors for ADH and CYP2E1.General significance The study demonstrates the role of CYP2E1 mediated oxidative stress in aggravating hyperglycemic insult and suggests that CYP2E1 may be a vital component of hyperglycemia mediated oxidative injury in liver.

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Crossref · 10.1016/j.bbagen.2013.05.022

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Authors
Swaminathan, K., Kumar, S. M., Clemens, D. L., & Dey, A.
Affiliations
  • Anna University, Chennai (IN)
  • VA Nebraska Western Iowa Health Care System (US)
Corresponding author
Dey, Aparajita
Venue
Biochimica et Biophysica Acta (BBA) - General Subjects
Publisher
Elsevier BV
Published
2013-10
Volume
1830
Issue
10
Pages
4407-4416
ISSN
0304-4165 (ISSN-L)
OpenAlex
W1997367330
Cited by
21
References
43
Citations by year
2025: 1 · 2023: 2 · 2021: 4 · 2020: 3 · 2019: 3 · 2017: 2 · 2016: 1 · 2015: 2 · 2014: 3
FWCI
1.32
Type
journal article
Language
en
Open access
closed
Locations
  • Biochimica et Biophysica Acta (BBA) - General Subjects (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • KBC Research Foundation, Chennai
  • Department of Science and Technology (Fast Track Scheme For Young Scientists)
  • Department of Biotechnology (Rapid Grant For Young Investigators)
  • Veterans Administration
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Clinical Biochemistry › Advanced Glycation End Products research
  • Life Sciences › Pharmacology, Toxicology and Pharmaceutics › Pharmacology › Pharmacogenetics and Drug Metabolism
  • Life Sciences › Pharmacology, Toxicology and Pharmaceutics › Pharmacology › Drug-Induced Hepatotoxicity and Protection
Keywords
CYP2E1, advanced glycation end products, aldehyde dehydrogenase, high glucose, oxidative stress, reactive oxygen species, diallyl sulfide, 4-methylpyrazole, pyrazole derivatives, liver injury, diabetes mellitus, hyperglycemia, hepatocyte cytotoxicity
MeSH terms
Alcohol Dehydrogenase, Allyl Compounds, Cell Line, Glucose, Humans, Pyrazoles, Sulfides, Glycation End Products, Advanced, Reactive Oxygen Species, Oxidative Stress, Cytochrome P-450 CYP2E1, Cytochrome P-450 CYP2E1 Inhibitors

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