Mangiferin prevents the impairment of mitochondrial dynamics and an increase in oxidative stress caused by excessive fluoride in SH‐SY5Y cells
Abstract
Previous studies both invivo and in vitro have revealed that high levels of fluoride cause neurotoxicity. Mangiferin has been reported to possess antioxidant, antiapoptotic, and anti-inflammatory properties. The present study was designed to characterize the mechanisms by which mangiferin protects against NaF-induced neurotoxicity. Increased levels of proapoptotic Bax, Caspase-3, Caspase-9, and cleaved-caspase 3, as well as a decreased level of antiapoptotic Bcl-2 induced by fluoride in human neuroblastoma SH-SY5Y cells, these effects were prevented by pretreatment of mangiferin. In addition, mangiferin attenuated the enhancement of p-JNK, reductions of Nrf2 and HO-1, and increased level of the mitochondrial fission proteins Drp1 caused by fluoride. Moreover, oxidative stress, as reflected in the levels of reactive oxygen species, 8-hydroxy-2'-deoxyguanosine, and 4-hydroxynonenal, was elevated by fluoride and these effects were again ameliorated by mangiferin. In conclusion, protection by mangiferin against fluoride-induced neurotoxicity involves normalizing the impaired mitochondrial apoptotic pathway and dynamics and reducing oxidative stress via inactivation of the JNK and activation of the Nrf2/HO-1 pathways.
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In models of fluoride-induced neurotoxicity, MGF restores mitochondrial integrity by inhibiting proapoptotic proteins (Bax, caspase-3 and caspase-9) and upregulating Bcl-2.
“Notably, in models of fluoride-induced neurotoxicity, MGF restores mitochondrial integrity by inhibiting proapoptotic proteins (Bax, caspase-3 and caspase-9) and upregulating Bcl-2.”
From Mangiferin in human disease: Multifaceted mechanisms and applications (Review) (2026) · cites this paper as [71]
The protective effects of MGF in fluoride-induced neurotoxicity are mediated via JNK inhibition and activation of the Nrf2/HO-1 pathway.
“These protective effects are mediated via JNK inhibition and activation of the Nrf2/HO-1 pathway (71).”
From Mangiferin in human disease: Multifaceted mechanisms and applications (Review) (2026) · cites this paper as [71]
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Self-citation
- Authors
- Tang, Z., Lai, C., Luo, J., Ding, Y., Chen, Q., & Guan, Z.
- Affiliations
- Guiyang Medical University (CN)
- Clinical Research Center The First Affiliated Hospital of Guizhou University of Traditional Chinese Medicine Guiyang China
- Guizhou University (CN)
- Corresponding author
- Guan, Zhi‐Zhong
- Venue
- Journal of Biochemical and Molecular Toxicology
- Publisher
- Wiley
- Published
- 2021-01-04
- Volume
- 35
- Issue
- 4
- Pages
- e22705-e22705
- ISSN
- 0887-2082 (ISSN-L)
- 1095-6670
- 1099-0461
- OpenAlex
- W3120942908
- Cited by
- 26
- References
- 39
- Citations by year
- 2026: 2 · 2025: 6 · 2024: 5 · 2023: 5 · 2022: 8
- FWCI
- 5.06
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Journal of Biochemical and Molecular Toxicology (publishedVersion)
- PubMed (publishedVersion)
- Funders
- Guizhou Science and Technology Department ([2018]1009, [2018]2772, LH [2017]7156, [2017]1014, [2018]5752)
- Science and Technology Bureau, Guiyang Municipal Government ([2019]9‐2‐11, [2019]9‐2‐7)
- National Natural Science Foundation of China (81560241, 81960265, U1812403)
- Department of Education of Guizhou Province (KY [2016]035, [2018]214)
- Topics
- Health Sciences › Medicine › Complementary and alternative medicine › Mangiferin and Mango Extracts
- Physical Sciences › Environmental Science › Water Science and Technology › Fluoride Effects and Removal
- Physical Sciences › Environmental Science › Health, Toxicology and Mutagenesis › Heavy Metal Exposure and Toxicity
- Keywords
- mangiferin, fluoride neurotoxicity, mitochondrial dynamics, mitochondrial fission, oxidative stress, apoptosis, JNK signaling, Nrf2/HO-1 pathway, Drp1, SH-SY5Y cells, reactive oxygen species, neuroprotection
- MeSH terms
- Fluorides, Humans, Mitochondria, Neoplasm Proteins, Neuroblastoma, Oxidative Stress, Xanthones, Cell Line, Tumor, Apoptosis Regulatory Proteins
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