Cited by 18Alcohol Consumption and Health EffectsRedox biology and oxidative stressDrug-Induced Hepatotoxicity and Protection

Increased oxidative stress and toxicity in ADH and CYP2E1 overexpressing human hepatoma VL-17A cells exposed to high glucose

Chandrasekaran, Karthikeyan, Swaminathan, Kavitha, Kumar, S. Mathan, Clemens, Dahn L., Dey, Aparajita·2012·Integrative Biology

Abstract

High glucose mediated oxidative stress and cell death is a well documented phenomenon. Using VL-17A cells which are HepG2 cells over-expressing alcohol dehydrogenase (ADH) and cytochrome P450 2E1 (CYP2E1) and control HepG2 cells, the association of ADH and CYP2E1 with high glucose mediated oxidative stress and toxicity in liver cells was investigated. Cell viability was measured and apoptosis or necrosis was determined through caspase-3 activity, Annexin V-propidium iodide staining and detecting decreases in mitochondrial membrane potential. Reactive oxygen species, lipid peroxidation and the formation of advanced glycated-end products were assessed. The levels of several antioxidants which included glutathione, glutathione peroxidase, catalase and superoxide dismutase were altered in high glucose treated VL-17A cells. Greater toxicity was observed in VL-17A cells exposed to high glucose when compared to HepG2 cells. Oxidative stress parameters were greatly increased in high glucose exposed VL-17A cells and apoptotic cell death was observed. Inhibition of CYP2E1 or caspase 3 or addition of the antioxidant trolox led to significant decreases in high glucose mediated oxidative stress and toxicity. Thus, the over-expression of ADH and CYP2E1 in liver cells is associated with increased high glucose mediated oxidative stress and toxicity.

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Crossref · 10.1039/c2ib00155a

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Research works printed but not linked: 4

  1. Eberhart, 2004, MMWR Morb. Mortal. Wkly. Rep., 53, 1066
  2. Liska, 1998, Altern. Med. Rev., 3, 187
  3. Gugliucci, 2000, J. Am. Osteopath. Assoc., 100, 621
  4. Chandrasekaran, 2011, Alcohol.: Clin. Exp. Res.

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Authors
Chandrasekaran, K., Swaminathan, K., Kumar, S. M., Clemens, D. L., & Dey, A.
Affiliations
  • Anna University, Chennai (IN)
  • Omaha VA Medical Center (US)
Corresponding author
Dey, Aparajita
Venue
Integrative Biology
Published
2012
Volume
4
Issue
5
Pages
550
ISSN
  • 1757-9694 (ISSN-L)
  • 1757-9708
OpenAlex
W2057336314
Cited by
18
References
84
Citations by year
2024: 1 · 2023: 1 · 2022: 1 · 2021: 2 · 2019: 1 · 2017: 2 · 2014: 3 · 2013: 6 · 2012: 1
FWCI
2.31
Type
journal article
Language
en
Open access
closed
Locations
  • Integrative Biology (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • University of Nebraska Medical Center
  • Royal Society
  • Royal Society of Chemistry
  • Department of Science and Technology, Ministry of Science and Technology, India
  • Council of Scientific and Industrial Research, India
Topics
  • Health Sciences › Medicine › Pathology and Forensic Medicine › Alcohol Consumption and Health Effects
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Redox biology and oxidative stress
  • Life Sciences › Pharmacology, Toxicology and Pharmaceutics › Pharmacology › Drug-Induced Hepatotoxicity and Protection
Keywords
high glucose, oxidative stress, alcohol dehydrogenase, CYP2E1, hepatotoxicity, apoptosis, caspase-3, advanced glycation end products, lipid peroxidation, reactive oxygen species, antioxidant enzymes, Trolox, HepG2 cells, mitochondrial membrane potential
MeSH terms
Cytochrome P450 Family 2, Alcohol Dehydrogenase, Cell Survival, Cytochrome P-450 Enzyme System, Glucose, Carcinoma, Hepatocellular, Humans, Up-Regulation, Apoptosis, Oxidative Stress, Cell Line, Tumor

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