ArticleToxicology2019
Curcumin protects against methylmercury-induced cytotoxicity in primary rat astrocytes by activating the Nrf2/ARE pathway independently of PKCδ.
Article in Toxicology, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.
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Who cites it
18 citing papers in PubMed, 51 citations in OpenAlex.
- MiR-19b-3p facilitates colorectal cancer metastasis by mediating the crosstalk between tumor-associated endothelial cells and malignant cells.Frontiers in oncology · 2026Article
- Nutraceuticals: A strategy to mitigate neurotoxicity.Advances in neurotoxicology · 2026Article
- JAK2/STAT3 Signaling Pathway Modulates Acute Methylmercury Toxicity in the Mouse Astrocyte C8-D1A Cell Line.Neurochemical research · 2025Article
- High-Resolution Tracking of Aging-Related Small Molecules: Bridging Pollutant Exposure, Brain Aging Mechanisms, and Detection Innovations.Biosensors · 2025Review
- Research progress on the mechanism of curcumin anti-oxidative stress based on signaling pathway.Frontiers in pharmacology · 2025Review
- Pharmacodynamics (PD), Pharmacokinetics (PK) and PK-PD Modeling of NRF2 Activating Dietary Phytochemicals in Cancer Prevention and in Health.Current pharmacology reports · 2025Review
- Advances in applications of artificial intelligence algorithms for cancer-related miRNA research.Zhejiang da xue xue bao. Yi xue ban = Journal of Zhejiang University. Medical sciences · 2024Review
- Role of Natural Compounds Modulating Heme Catabolic Pathway in Gut, Liver, Cardiovascular, and Brain Diseases.Biomolecules · 2024Review
- Antioxidant Supplementation Alleviates Mercury-Induced Cytotoxicity and Restores the Implantation-Related Functions of Primary Human Endometrial Cells.International journal of molecular sciences · 2023Article
- Natural Products as Modulators of Nrf2 Signaling Pathway in Neuroprotection.International journal of molecular sciences · 2023Review
- Article
- Effect of methylmercury on fetal neurobehavioral development: an overview of the possible mechanisms of toxicity and the neuroprotective effect of phytochemicals.Archives of toxicology · 2022Review
- Effect of Solanum vegetables on memory index, redox status, and expressions of critical neural genes in Drosophila melanogaster model of memory impairment.Metabolic brain disease · 2022Article
- Nrf2 Regulation by Curcumin: Molecular Aspects for Therapeutic Prospects.Molecules (Basel, Switzerland) · 2021Review
- Review
- The Effect of Naja naja oxiana Snake Venom Against Leishmania tropica Confirmed by Advanced Assays.Acta parasitologica · 2021Article
- The Role of Toxic Metals and Metalloids in Nrf2 Signaling.Antioxidants (Basel, Switzerland) · 2021Review
- Cellular and Molecular Mechanisms Mediating Methylmercury Neurotoxicity and Neuroinflammation.International journal of molecular sciences · 2021Review
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Authors and funding
15 authors at 4 institutions in 2 countries.
Funding
Abstract
Methylmercury (MeHg) is a ubiquitous environmental toxicant that leads to long-lasting neurological deficits in animals and humans. Curcumin, a polyphenol obtained from the rhizome of turmeric, has well-known antioxidant functions. Here, we evaluated curcumin's efficacy in mitigating MeHg-induced cytotoxicity and further investigated the underlying mechanism of this neuroprotection in primary rat astrocytes. Pretreatment with curcumin (2, 5, 10 and 20 μM for 3, 6, 12 or 24 h) protected against MeHg-induced (5 μM for 6 h) cell death in a time and dose-dependent manner. Curcumin (2, 5, 10 or 20 μM) pretreatment for 12 h significantly ameliorated the MeHg-induced astrocyte injury and oxidative stress, as evidenced by morphological alterations, lactate dehydrogenase (LDH) release, reactive oxygen species (ROS) generation, and glutathione (GSH) and catalase (CAT) levels. Moreover, curcumin pretreatment increased Nrf2 nuclear translocation and downstream enzyme expression, heme oxygenase-1 (HO-1) and NADPH quinone reductase-1 (NQO1). Knockdown of Nrf2 with siRNA attenuated the protective effect of curcumin against MeHg-induced cell death. However, both the pan-protein kinase C (PKC) inhibitor, Ro 31-8220, and the selective PKCδ inhibitor, rottlerin, failed to suppress the curcumin-activated Nrf2/Antioxidant Response Element(ARE) pathway and attenuate the protection exerted by curcumin. Taken together, these findings confirm that curcumin protects against MeHg-induced neurotoxicity by activating the Nrf2/ARE pathway and this protection is independent of PKCδ activation. More studies are needed to understand the mechanisms of curcumin cytoprotection.
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