Cited by 1,343Redox biology and oxidative stressSulfur Compounds in BiologyAntioxidant Activity and Oxidative Stress

Molecular mechanisms of N-acetylcysteine actions

Open access
Zafarullah, M., Li, W. Q., Sylvester, J., Ahmad, M.·2003·Cellular and Molecular Life Sciences (CMLS)

Abstract

Oxidative stress generated by an imbalance between reactive oxygen species (ROS) and antioxidants contributes to the pathogenesis of arthritis, cancer, cardiovascular, liver and respiratory diseases. Proinflammatory cytokines and growth factors stimulate ROS production as signaling mediators. Antioxidants such as N-acetylcysteine (NAC) have been used as tools for investigating the role of ROS in numerous biological and pathological processes. NAC inhibits activation of c-Jun N-terminal kinase, p38 MAP kinase and redox-sensitive activating protein-1 and nuclear factor kappa B transcription factor activities regulating expression of numerous genes. NAC can also prevent apoptosis and promote cell survival by activating extracellular signal-regulated kinase pathway, a concept useful for treating certain degenerative diseases. NAC directly modifies the activity of several proteins by its reducing activity. Despite its nonspecificity, ability to modify DNA and multiple molecular modes of action, NAC has therapeutic value for reducing endothelial dysfunction, inflammation, fibrosis, invasion, cartilage erosion, acetaminophen detoxification and transplant prolongation.

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Crossref · 10.1007/s000180300001

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Authors
Zafarullah, M., Li, W. Q., Sylvester, J., & Ahmad, M.
Affiliations
  • Hôpital Notre-Dame (CA)
  • Emory University (US)
Venue
Cellular and Molecular Life Sciences (CMLS)
Published
2003-01-01
Volume
60
Issue
1
Pages
6-20
ISSN
  • 1420-682X (ISSN-L)
  • 1420-9071
OpenAlex
W2024007859
Cited by
1,343
References
160
Citations by year
2026: 35 · 2025: 38 · 2024: 61 · 2023: 55 · 2022: 53 · 2021: 71 · 2020: 77 · 2019: 57 · 2018: 77 · 2017: 81 · 2016: 52 · 2015: 76 · 2014: 73 · 2013: 76 · 2012: 67
FWCI
14.25
Type
journal article
Language
en
Open access
Locations
  • Cellular and Molecular Life Sciences (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
National Heart, Lung, and Blood Institute (R01HL066508, R01 HL-66508-01)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Redox biology and oxidative stress
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Biochemistry › Sulfur Compounds in Biology
  • Health Sciences › Medicine › Biochemistry › Antioxidant Activity and Oxidative Stress
Keywords
N-acetylcysteine, reactive oxygen species, oxidative stress, antioxidants, c-Jun N-terminal kinase, p38 MAPK, NF-κB, AP-1, ERK signaling, apoptosis, S-nitrosylation, endothelial dysfunction, inflammation, fibrosis, arthritis, cartilage erosion
MeSH terms
Acetylcysteine, Animals, Antioxidants, Cell Survival, Humans, Liver, Muscle, Smooth, Vascular, Oxidation-Reduction, Signal Transduction, Free Radical Scavengers, NF-kappa B, Apoptosis, Reactive Oxygen Species, Oxidative Stress, Mitogen-Activated Protein Kinases, JNK Mitogen-Activated Protein Kinases, p38 Mitogen-Activated Protein Kinases

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