Cited by 58Fluoride Effects and RemovalNeuroinflammation and Neurodegeneration MechanismsRedox biology and oxidative stress

JNK and NADPH oxidase involved in fluoride-induced oxidative stress in BV-2 microglia cells

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Yan, Ling, Liu, Shengnan, Wang, Chen, Wang, Fei, Song, Yingli, Yan, Nan, Xi, Shuhua, Liu, Ziyou +1 more·2013·Mediators of Inflammation

Abstract

Excessive fluoride may cause central nervous system (CNS) dysfunction, and oxidative stress is a recognized mode of action of fluoride toxicity. In CNS, activated microglial cells can release more reactive oxygen species (ROS), and NADPH oxidase (NOX) is the major enzyme for the production of extracellular superoxide in microglia. ROS have been characterized as an important secondary messenger and modulator for various mammalian intracellular signaling pathways, including the MAPK pathways. In this study we examined ROS production and TNF- α , IL-1 β inflammatory cytokines releasing, and the expression of MAPKs in BV-2 microglia cells treated with fluoride. We found that fluoride increased JNK phosphorylation level of BV-2 cells and pretreatment with JNK inhibitor SP600125 markedly reduced the levels of intracellular O₂(·-) and NO. NOX inhibitor apocynin and iNOS inhibitor SMT dramatically decreased NaF-induced ROS and NO generations, respectively. Antioxidant melatonin (MEL) resulted in a reduction in JNK phosphorylation in fluoride-stimulated BV-2 microglia. The results confirmed that NOX and iNOS played an important role in fluoride inducing oxidative stress and NO production and JNK took part in the oxidative stress induced by fluoride and meanwhile also could be activated by ROS in fluoride-treated BV-2 cells.

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  1. [12]Georgieva NV Oxidative stress as a factor of disrupted ecological oxidative balance in biological systems—a review Bulgarian Journal of Veterinary Medicine 2005 8 1 11

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Authors
Yan, L., Liu, S., Wang, C., Wang, F., Song, Y., Yan, N., Xi, S., Liu, Z., & Sun, G.
Affiliations
China Medical University (CN)
Corresponding author
Xi, Shuhua
Venue
Mediators of Inflammation
Published
2013
Volume
2013
Pages
1-10
ISSN
  • 0962-9351 (ISSN-L)
  • 1466-1861
OpenAlex
W2036762936
Cited by
58
References
43
Citations by year
2026: 2 · 2025: 4 · 2024: 5 · 2023: 4 · 2022: 6 · 2021: 1 · 2020: 7 · 2019: 1 · 2018: 8 · 2017: 4 · 2016: 5 · 2015: 5 · 2014: 6
FWCI
4.44
Type
journal article
Language
en
Open access
Locations
  • Mediators of Inflammation (publishedVersion, cc-by)
  • Europe PMC (PubMed Central) (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
Funders
  • Ministry of Education, Science and Technology
  • Science and Technology Development Center, Ministry of Education (20112104110021)
Topics
  • Physical Sciences › Environmental Science › Water Science and Technology › Fluoride Effects and Removal
  • Life Sciences › Neuroscience › Neurology › Neuroinflammation and Neurodegeneration Mechanisms
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Redox biology and oxidative stress
Keywords
fluoride toxicity, oxidative stress, microglia, NADPH oxidase, JNK, reactive oxygen species, nitric oxide, inducible nitric oxide synthase, MAPK signaling, TNF-α, IL-1β, melatonin, SP600125, apocynin, sodium fluoride, neuroinflammation
MeSH terms
Acetophenones, Animals, Anthracenes, Antioxidants, Cell Line, Cell Survival, Enzyme Inhibitors, Enzyme-Linked Immunosorbent Assay, Fluorides, Inflammation, Melatonin, Nitric Oxide, Oxygen, Phosphorylation, Gene Expression Regulation, Enzymologic, Reactive Oxygen Species, Microglia, Oxidative Stress, NADPH Oxidases, MAP Kinase Kinase 4, Mice, Nitric Oxide Synthase Type II

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