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Feng D, Zhao Y, Li W, Li X, Wan J, Wang F. Copper neurotoxicity: Induction of cognitive dysfunction: A review. Medicine (Baltimore) 2023; 102:e36375. [PMID: 38050287 PMCID: PMC10695595 DOI: 10.1097/md.0000000000036375] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/29/2023] [Accepted: 11/08/2023] [Indexed: 12/06/2023] Open
Abstract
Cognitive dysfunction occurs mainly in certain diseases and in the pathological process of aging. In addition to this, it is also widespread in patients undergoing anesthesia, surgery, and cancer chemotherapy. Neuroinflammation, oxidative stress, mitochondrial dysfunction, impaired synaptic plasticity, and lack of neurotrophic support are involved in copper-induced cognitive dysfunction. In addition, recent studies have found that copper mediates cuproptosis and adversely affects cognitive function. Cuproptosis is a copper-dependent, lipoylated mitochondrial protein-driven, non-apoptotic mode of regulated cell death, which provides us with new avenues for identifying and treating related diseases. However, the exact mechanism by which cuproptosis induces cognitive decline is still unclear, and this has attracted the interest of many researchers. In this paper, we analyzed the pathological mechanisms and therapeutic targets of copper-associated cognitive decline, mainly in the context of neurodegenerative diseases, psychiatric and psychological disorders, and diabetes mellitus.
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Affiliation(s)
- Duan Feng
- Department of Anesthesiology, Affiliated Hospital of North Sichuan Medical College, Nanchong, China
| | - Yu Zhao
- General Surgery Department, Enyang District People’s Hospital, Bazhong City, China
| | - Wei Li
- ICU, Bazhong District People’s Hospital, Bazhong, China
| | - Xuechao Li
- Department of Anesthesiology, Affiliated Hospital of North Sichuan Medical College, Nanchong, China
| | - Jixiang Wan
- Department of Anesthesiology, Affiliated Hospital of North Sichuan Medical College, Nanchong, China
| | - Fangjun Wang
- Department of Anesthesiology, Affiliated Hospital of North Sichuan Medical College, Nanchong, China
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Ma F, Ma X, Yang F, Liao J, Qiao N, Yu W, Han Q, Li Y, Pan J, Hu L, Guo J, Tang Z. Exposure to copper induces endoplasmic reticulum (ER) stress-mediated apoptosis in chicken (Gallus gallus) myocardium. Vet Res Commun 2023; 47:2027-2040. [PMID: 37405676 DOI: 10.1007/s11259-023-10166-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2023] [Accepted: 06/30/2023] [Indexed: 07/06/2023]
Abstract
Copper (Cu), an omnipresent environmental pollutant, can cause potential harm to the public and ecosystems. In order to study the cardiotoxicity caused by Cu, molecular biology techniques were used to analyze the effect of Cu on ER stress-mediated cardiac apoptosis. In vivo investigation, 240 1-day-old chickens were fed with Cu (11, 110, 220, and 330 mg/kg) diet for 7 weeks. The consequence showed that high-Cu can induce ER stress and apoptosis in heart tissue. The vitro experiments, the Cu treatment for 24 h could provoke ultrastructural damage and upregulate the apoptosis rate. Meanwhile, GRP78, GRP94, eIF2α, ATF6, XBP1, CHOP, Bax, Bak1, Bcl2, Caspase-12 and Caspase-3 genes levels, and GRP78, GRP94 and Caspase-3 proteins levels were increased, which indicated that ER stress and apoptosis in cardiomyocytes. But the mRNA level of Bcl2 were decreased after Cu exposure. Conversely, Cu-induced ER stress-mediated apoptosis can be alleviated by treatment with 4-PBA. These findings generally showed that Cu exposure can contribute to ER stress-mediated apoptosis in chicken myocardium, which clarifies the important mechanism link between ER stress and apoptosis, and provides a new perspective for Cu toxicology.
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Affiliation(s)
- Feiyang Ma
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, 510642, Guangdong, China
| | - Xinyan Ma
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, 510642, Guangdong, China
| | - Fan Yang
- Jiangxi Provincial Key Laboratory for Animal Health, Institute of Animal Population Health, College of Animal Science and Technology, Jiangxi Agricultural University, Nanchang, 330045, Jiangxi, China
| | - Jianzhao Liao
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, 510642, Guangdong, China
| | - Na Qiao
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, 510642, Guangdong, China
| | - Wenlan Yu
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, 510642, Guangdong, China
| | - Qingyue Han
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, 510642, Guangdong, China
| | - Ying Li
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, 510642, Guangdong, China
| | - Jiaqiang Pan
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, 510642, Guangdong, China
| | - Lianmei Hu
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, 510642, Guangdong, China
| | - Jianying Guo
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, 510642, Guangdong, China
| | - Zhaoxin Tang
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, 510642, Guangdong, China.
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Wang X, Yang F, Tian X, Huo H, Li X, Wu H, Guo J. Toxic effects of copper on duck cerebrum: a crucial role of oxidative stress and endoplasmic reticulum quality control. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:98127-98138. [PMID: 37606779 DOI: 10.1007/s11356-023-29397-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Accepted: 08/15/2023] [Indexed: 08/23/2023]
Abstract
To study the effects of Cu overload on ER quality control in duck cerebrums, 144 ducks were treated with 8 mg/kg, 100 mg/kg, 200 mg/kg and 400 mg/kg Cu added in the feed for 45 days. From histopathological examination, we found that excessive Cu increased the amount of microglia and disintegrated neuron, decreased the number of Nissl bodies, perturbed nerve fibers in duck cerebrums. Cu poisoning also increased Cu, H2O2, T-SOD, and MDA levels, decreased Fe and CAT contents in duck cerebrums. Furthermore, Cu treatment upregulated the mRNA levels of the unfolded protein response genes (PERK, ATF6, and IRE1), ER-associated degradation genes (CNX, Derlin1, and Derlin2), autophagy genes (ATG5, ATG7, ATG10, Beclin1, LC3A, LC3B, and P62), and heat shock response genes (Hsp70 and Hsp90) in duck cerebrums; elevated the protein levels of p-PERK, CNX, SEL1L, Beclin1, P62, and LC3BII/LC3BI in duck cerebrums; increased the numbers of SEL1L and LC3B puncta in duck cerebrums. Thus, our data showed that excessive Cu could cause histopathological damage to duck cerebrums, disrupt the balance of the trace elements, induce oxidative stress and activation of ER quality control, thereby resulting in duck cerebrums damage.
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Affiliation(s)
- Xiaoyu Wang
- College of Veterinary Medicine, South China Agriculture University, Guangzhou, 510642, Guangdong, People's Republic of China
| | - Fan Yang
- College of Veterinary Medicine, South China Agriculture University, Guangzhou, 510642, Guangdong, People's Republic of China
- Jiangxi Provincial Key Laboratory for Animal Health, Institute of Animal Population Health, College of Animal Science and Technology, Jiangxi Agricultural University, No. 1101 Zhimin Avenue, Economic and Technological Development District, Nanchang, 330045, Jiangxi, People's Republic of China
| | - Xiaomin Tian
- College of Veterinary Medicine, South China Agriculture University, Guangzhou, 510642, Guangdong, People's Republic of China
| | - Haihua Huo
- College of Veterinary Medicine, South China Agriculture University, Guangzhou, 510642, Guangdong, People's Republic of China
| | - Xinrun Li
- College of Veterinary Medicine, South China Agriculture University, Guangzhou, 510642, Guangdong, People's Republic of China
| | - Haitong Wu
- College of Veterinary Medicine, South China Agriculture University, Guangzhou, 510642, Guangdong, People's Republic of China
| | - Jianying Guo
- College of Veterinary Medicine, South China Agriculture University, Guangzhou, 510642, Guangdong, People's Republic of China.
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Huo Y, Ma F, Li T, Lei C, Liao J, Han Q, Li Y, Pan J, Hu L, Guo J, Tang Z. Exposure to copper activates mitophagy and endoplasmic reticulum stress-mediated apoptosis in chicken (Gallus gallus) cerebrum. ENVIRONMENTAL TOXICOLOGY 2023; 38:392-402. [PMID: 36350156 DOI: 10.1002/tox.23701] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/30/2022] [Revised: 10/14/2022] [Accepted: 10/25/2022] [Indexed: 06/16/2023]
Abstract
A large amount of copper (Cu) used in production activities can lead to the enrichment of Cu in the environment, which can cause toxicity to animals. However, the toxicity mechanism of Cu on the cerebrum is still uncertain. Hence, a total of 240 chickens were separated into four groups in this study to reveal the potential connection between mitophagy and endoplasmic reticulum (ER) stress-mediated apoptosis in the chicken cerebrum in the case of excess Cu exposure. The cu exposure situation was simulated by diets containing various levels of copper (11 mg/kg, control group; 110 mg/kg, group I; 220 mg/kg, group II and 330 mg/kg, group III) for 49 days. The results of histology showed that vacuolar degeneration was observed in the treated groups, and the mitochondria swell and autophagosomes formation were found under excess Cu treatment. Additionally, the expression of mitophagy (PINK1, Parkin, LC3I, LC3II and p62) and ER stress (GRP78, PERK, ATF6, IRE1α, XBP1, CHOP, and JNK) indexes were significantly upregulated under excess Cu exposure. Furthermore, the mRNA and protein expression of Bcl-2 were decreased, while Bak1, Bax, Caspase12, and Caspase3 were increased compared to the control group. In summary, this study demonstrated that an overdose of Cu could induce mitophagy and ER stress-mediated apoptosis in the chicken cerebrum. These findings revealed an important potential connection between Cu toxicity and cerebrum damage, which provided a new insight into Cu neurotoxicity.
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Affiliation(s)
- Yihui Huo
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, Guangdong, China
| | - Feiyang Ma
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, Guangdong, China
| | - Tingyu Li
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, Guangdong, China
| | - Chaiqin Lei
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, Guangdong, China
| | - Jianzhao Liao
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, Guangdong, China
| | - Qingyue Han
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, Guangdong, China
| | - Ying Li
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, Guangdong, China
| | - Jiaqiang Pan
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, Guangdong, China
| | - Lianmei Hu
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, Guangdong, China
| | - Jianying Guo
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, Guangdong, China
| | - Zhaoxin Tang
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, Guangdong, China
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Ren J, Wang B, Li L, Li S, Ma Y, Su L, Liu G, Liu Y, Dai Y. Glutathione ameliorates the meiotic defects of copper exposed ovine oocytes via inhibiting the mitochondrial dysfunctions. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2023; 251:114530. [PMID: 36630773 DOI: 10.1016/j.ecoenv.2023.114530] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/24/2022] [Revised: 12/13/2022] [Accepted: 01/07/2023] [Indexed: 05/28/2023]
Abstract
Regardless of the essential role of copper (Cu) in the physiological regulation process of mammalian reproduction, excessive exposure to Cu triggers the meiotic defects of porcine oocytes via compromising the mitochondrial functions. However, the connections between the excessive Cu exposure and meiotic defects of ovine oocytes have not been reported. In this study, the effect of copper sulfate (CuSO4) exposure on the meiotic potentials of ovine oocytes was analyzed. Subsequently, the ameliorative effect of glutathione (GSH) supplementation on the meiotic defects of CuSO4 exposed ovine oocytes was investigated. For these purposes, the in vitro maturation (IVM) of ovine cumulus oocyte complexes (COCs) was conducted in the presence of 5, 10, 20 and 40 μg/mL of CuSO4 supplementation. Subsequently, different concentrations of GSH (2, 4 and 8 mM) were added to the IVM medium containing CuSO4 solution. After IVM, the assay, including nuclear maturation, spindle organization, chromosome alignment, cytoskeleton assembly, cortical granule (CGs) dynamics, mitochondrial function, reactive oxygen species (ROS) generation, apoptosis, epigenetic modification and fertilization capacity of ovine oocytes were performed. The results showed that excessive Cu exposure triggered the meiotic defects of ovine oocytes via promoting the mitochondrial dysfunction related oxidative stress damage. Moreover, the GSH supplementation, not only ameliorated the decreased maturation potential and fertilization defect of CuSO4 exposed oocytes, but inhibited the mitochondrial dysfunction related oxidative stress damage, ROS generation, apoptosis and altered H3K27me3 expression in the CuSO4 exposed oocytes. Combined with the gene expression pattern, the finding in the present study provided fundamental bases for the ameliorative effect of GSH supplementation on the meiotic defects of CuSO4 exposed oocytes via inhibiting the mitochondrial dysfunctions, further benefiting these potential applications of GSH supplementation in the mammalian IVM system and livestock breeding suffering from the excessive Cu exposure.
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Affiliation(s)
- Jingyu Ren
- College of Life Science, Inner Mongolia University, No. 235 West Univ. Road, Hohhot, Zip Code: 010021, Inner Mongolia, China
| | - Biao Wang
- Animal Husbandry Institute, Inner Mongolia Academy of Agricultural & Animal Husbandry Sciences, No. 22 Zhaowuda Road, Hohhot, Zip Code: 010031, Inner Mongolia, China
| | - Liping Li
- College of Life Science, Inner Mongolia University, No. 235 West Univ. Road, Hohhot, Zip Code: 010021, Inner Mongolia, China
| | - Shubin Li
- Center of Reproductive Medicine, Inner Mongolia People's Hospital, No. 20 Zhaowuda Road, Hohhot, Zip Code: 010021, Inner Mongolia, China
| | - Yuzhen Ma
- Center of Reproductive Medicine, Inner Mongolia People's Hospital, No. 20 Zhaowuda Road, Hohhot, Zip Code: 010021, Inner Mongolia, China
| | - Liya Su
- Key Laboratory of Medical Cell Biology, Clinical Medicine Research Center, Affiliated Hospital of Inner Mongolia Medical University, No. 1 Tongdao North Street, Hohhot, Zip Code: 010050, Inner Mongolia, China
| | - Gang Liu
- Key Laboratory of Medical Cell Biology, Clinical Medicine Research Center, Affiliated Hospital of Inner Mongolia Medical University, No. 1 Tongdao North Street, Hohhot, Zip Code: 010050, Inner Mongolia, China.
| | - Yongbin Liu
- College of Life Science, Inner Mongolia University, No. 235 West Univ. Road, Hohhot, Zip Code: 010021, Inner Mongolia, China.
| | - Yanfeng Dai
- College of Life Science, Inner Mongolia University, No. 235 West Univ. Road, Hohhot, Zip Code: 010021, Inner Mongolia, China.
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Brain copper may protect from cognitive decline and Alzheimer's disease pathology: a community-based study. Mol Psychiatry 2022; 27:4307-4313. [PMID: 36195639 PMCID: PMC9764421 DOI: 10.1038/s41380-022-01802-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/07/2021] [Revised: 08/25/2022] [Accepted: 09/14/2022] [Indexed: 02/07/2023]
Abstract
Copper is an essential micronutrient for brain health and dyshomeostasis of copper could have a pathophysiological role in Alzheimer's disease (AD), however, there are limited data from community-based samples. In this study, we investigate the association of brain copper (assessed using ICP-MS in four regions -inferior temporal, mid-frontal, anterior cingulate, and cerebellum) and dietary copper with cognitive decline and AD pathology burden (a quantitative summary of neurofibrillary tangles, diffuse and neuritic plaques in multiple brain regions) at autopsy examination among deceased participants (N = 657; age of death: 90.2(±6.2)years, 70% women, 25% APOE-ɛ4 carriers) in the Rush Memory and Aging Project. During annual visits, these participants completed cognitive assessments using a 19-test battery and dietary assessments (using a food frequency questionnaire). Regression, linear mixed-effects, and logistic models adjusted for age at death, sex, education, and APOE-ε4 status were used. Higher composite brain copper levels were associated with slower cognitive decline (β(SE) = 0.028(0.01), p = 0.001) and less global AD pathology (β(SE) = -0.069(0.02), p = 0.0004). Participants in the middle and highest tertile of dietary copper had slower cognitive decline (T2vs.T1: β = 0.038, p = 0.0008; T3vs.T1: β = 0.028, p = 0.01) than those in the lowest tertile. Dietary copper intake was not associated with brain copper levels or AD pathology. Associations of higher brain copper levels with slower cognitive decline and with less AD pathology support a role for copper dyshomeostasis in AD pathogenesis and suggest that lower brain copper may exacerbate or indicate disease severity. Dietary and brain copper are unrelated but dietary copper is associated with slower cognitive decline via an unknown mechanism.
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Wang T, Wu L, Chen Q, Chen K, Tan F, Liu J, Liu X, Han H. Copper deposition in Wilson's disease causes male fertility decline by impairing reproductive hormone release through inducing apoptosis and inhibiting ERK signal in hypothalamic-pituitary of mice. Front Endocrinol (Lausanne) 2022; 13:961748. [PMID: 35992126 PMCID: PMC9389053 DOI: 10.3389/fendo.2022.961748] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/05/2022] [Accepted: 07/11/2022] [Indexed: 11/13/2022] Open
Abstract
Wilson's disease (WD) is an autosomal recessive disorder of copper metabolism characterized by liver and central nervous system dysfunction. Considerable evidence suggests that infertility is also very common in male patients with WD, but the exact molecular mechanisms involved remain unknown. In order to further investigate the pathological changes in the hypothalamic-pituitary-testicular (HPT) axis and its mechanisms, mice were divided into the normal control group (NC), WD model TX mice group (WD), dimercaptosuccinic acid-treated TX mice group (DMSA), and pregnant horse serum gonadotropin-treated TX mice group (PMSG). The copper content and morphology of hypothalamus and pituitary tissues, the ultrastructure and apoptosis of hypothalamus neurons and pituitary gonadotropin cells, the serum levels of reproductive hormones, and the pregnancy rate and litter size of the female mice were studied. The expression of apoptosis-related proteins and the phosphorylation of extracellular regulatory protein kinase (ERK) 1/2 in the hypothalamus and pituitary were detected. The results showed that the copper content was significantly increased in the WD group, and the histopathological morphology and ultrastructure of the hypothalamus and pituitary were damaged. The levels of the gonadotropin-releasing hormone, the follicle-stimulating hormone, the luteinizing hormone, and testosterone were significantly decreased. The apoptosis rate in the hypothalamus and pituitary was significantly increased. The expressions of proapoptotic proteins Bax and Caspase-3 were significantly increased, the expression of the anti-apoptotic protein Bcl-2 was significantly decreased, and the phosphorylation level of ERK1/2 was significantly decreased. Fertility is significantly reduced. After DMSA intervention, the hypothalamus tissue copper content decreased, the hypothalamus and pituitary tissue morphology and ultrastructure were improved, cell apoptosis was alleviated, the expression of Bax and Caspase-3 was significantly decreased, the expression of Bcl-2 was significantly increased, and the reproductive hormone level, phosphorylation level, and fertility were increased. Fertility was preserved after treatment with PMSG in male TX mice. These results suggest that copper deposition in WD causes male fertility decline by impairing reproductive neuroendocrine hormone release through inducing apoptosis and inhibiting the ERK signal in the hypothalamic-pituitary region. This study can also provide reference for the damage of copper pollution to the male reproductive system.
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Affiliation(s)
- Tingting Wang
- Encephalopathy Center, The First Affiliated Hospital, Anhui University of Traditional Chinese Medicine, Hefei, China
| | - Limin Wu
- Reproductive and Genetic Branch, The First Affiliated Hospital of University of Science and Technology of China (USTC), Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
- *Correspondence: Hui Han, ; Limin Wu,
| | - Qiuying Chen
- Encephalopathy Center, The First Affiliated Hospital, Anhui University of Traditional Chinese Medicine, Hefei, China
| | - Kuiyu Chen
- Encephalopathy Center, The First Affiliated Hospital, Anhui University of Traditional Chinese Medicine, Hefei, China
| | - Fang Tan
- Encephalopathy Center, The First Affiliated Hospital, Anhui University of Traditional Chinese Medicine, Hefei, China
| | - Jiabo Liu
- Encephalopathy Center, The First Affiliated Hospital, Anhui University of Traditional Chinese Medicine, Hefei, China
| | - Xiang Liu
- Encephalopathy Center, The First Affiliated Hospital, Anhui University of Traditional Chinese Medicine, Hefei, China
| | - Hui Han
- Encephalopathy Center, The First Affiliated Hospital, Anhui University of Traditional Chinese Medicine, Hefei, China
- *Correspondence: Hui Han, ; Limin Wu,
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Isaev NK, Stelmashook EV, Genrikhs EE. Role of zinc and copper ions in the pathogenetic mechanisms of traumatic brain injury and Alzheimer's disease. Rev Neurosci 2021; 31:233-243. [PMID: 31747384 DOI: 10.1515/revneuro-2019-0052] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2019] [Accepted: 08/24/2019] [Indexed: 12/24/2022]
Abstract
The disruption of homeostasis of zinc (Zn2+) and copper (Cu2+) ions in the central nervous system is involved in the pathogenesis of many neurodegenerative diseases, such as amyotrophic lateral sclerosis, Wilson's, Creutzfeldt-Jakob, Parkinson's, and Alzheimer's diseases (AD), and traumatic brain injury (TBI). The last two pathological conditions of the brain are the most common; moreover, it is possible that TBI is a risk factor for the development of AD. Disruptions of Zn2+ and Cu2+ homeostasis play an important role in the mechanisms of pathogenesis of both TBI and AD. This review attempts to summarize and systematize the currently available research data on this issue. The neurocytotoxicity of Cu2+ and Zn2+, the synergism of the toxic effect of calcium and Zn2+ ions on the mitochondria of neurons, and the interaction of Zn2+ and Cu2+ with β-amyloid (Abeta) and tau protein are considered.
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Affiliation(s)
- Nickolay K Isaev
- M.V. Lomonosov Moscow State University, N.A. Belozersky Institute of Physico-Chemical Biology, Biological Faculty, Moscow 119991, Russia.,Research Center of Neurology, Moscow 125367, Russia
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Tassone G, Kola A, Valensin D, Pozzi C. Dynamic Interplay between Copper Toxicity and Mitochondrial Dysfunction in Alzheimer's Disease. Life (Basel) 2021; 11:life11050386. [PMID: 33923275 PMCID: PMC8146034 DOI: 10.3390/life11050386] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Revised: 04/20/2021] [Accepted: 04/21/2021] [Indexed: 11/16/2022] Open
Abstract
Alzheimer's disease (AD) is a neurodegenerative disorder, affecting millions of people worldwide, a number expected to exponentially increase in the future since no effective treatments are available so far. AD is characterized by severe cognitive dysfunctions associated with neuronal loss and connection disruption, mainly occurring in specific brain areas such as the hippocampus, cerebral cortex, and amygdala, compromising memory, language, reasoning, and social behavior. Proteomics and redox proteomics are powerful techniques used to identify altered proteins and pathways in AD, providing relevant insights on cellular pathways altered in the disease and defining novel targets exploitable for drug development. Here, we review the main results achieved by both -omics techniques, focusing on the changes occurring in AD mitochondria under oxidative stress and upon copper exposure. Relevant information arises by the comparative analysis of these results, evidencing alterations of common mitochondrial proteins, metabolic cycles, and cascades. Our analysis leads to three shared mitochondrial proteins, playing key roles in metabolism, ATP generation, oxidative stress, and apoptosis. Their potential as targets for development of innovative AD treatments is thus suggested. Despite the relevant efforts, no effective drugs against AD have been reported so far; nonetheless, various compounds targeting mitochondria have been proposed and investigated, reporting promising results.
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Affiliation(s)
| | | | - Daniela Valensin
- Correspondence: (D.V.); (C.P.); Tel.: +39-0577-232428 (D.V.); +39-0577-232132 (C.P.)
| | - Cecilia Pozzi
- Correspondence: (D.V.); (C.P.); Tel.: +39-0577-232428 (D.V.); +39-0577-232132 (C.P.)
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Odai T, Terauchi M, Suzuki R, Kato K, Hirose A, Miyasaka N. Severity of subjective forgetfulness is associated with high dietary intake of copper in Japanese senior women: A cross-sectional study. Food Sci Nutr 2020; 8:4422-4431. [PMID: 32884722 PMCID: PMC7455963 DOI: 10.1002/fsn3.1740] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2020] [Revised: 05/11/2020] [Accepted: 06/06/2020] [Indexed: 01/31/2023] Open
Abstract
This study investigated the relationship between subjective forgetfulness and the dietary intake of various nutrients in middle-aged and senior women. A cross-sectional study of the first-visit records of 245 Japanese women aged 40 or over was performed. The severity of subjective forgetfulness was classified according to the Menopausal Health-Related Quality of Life Questionnaire: none and mild ("unforgetful") or moderate and severe ("forgetful"). Dietary consumption of nutrients was estimated using the brief-type self-administered diet history questionnaire. The associations between the severity of subjective forgetfulness and intake of 43 major nutrients were evaluated using multivariate logistic regression analysis separately performed for two age groups: middle-aged (40-54 years, N = 166) and senior (55 years or over, N = 79). No nutrients were found to be significantly associated with subjective forgetfulness in the middle-aged group. In senior women, a significant positive relationship between the intake of copper and forgetfulness was found (adjusted odds ratio per 10 mg/kJ increase in copper intake: 1.25; 95% confidence interval: 1.08-1.50). Thus, high copper intake is positively associated with the severity of forgetfulness in Japanese senior women. Reducing copper consumption could help improve this symptom in this population.
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Affiliation(s)
- Tamami Odai
- Department of Obstetrics and GynecologyTokyo Medical and Dental UniversityBunkyoTokyoJapan
| | - Masakazu Terauchi
- Department of Women’s HealthTokyo Medical and Dental UniversityBunkyoTokyoJapan
| | - Risa Suzuki
- Department of Obstetrics and GynecologyTokyo Medical and Dental UniversityBunkyoTokyoJapan
| | - Kiyoko Kato
- Department of Women’s HealthTokyo Medical and Dental UniversityBunkyoTokyoJapan
| | - Asuka Hirose
- Department of Obstetrics and GynecologyTokyo Medical and Dental UniversityBunkyoTokyoJapan
- Department of Women’s HealthTokyo Medical and Dental UniversityBunkyoTokyoJapan
| | - Naoyuki Miyasaka
- Department of Obstetrics and GynecologyTokyo Medical and Dental UniversityBunkyoTokyoJapan
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Chen C, Jiang X, Li Y, Yu H, Li S, Zhang Z, Xu H, Yang Y, Liu G, Zhu F, Ren X, Zou L, Xu B, Liu J, Spencer PS, Yang X. Low-dose oral copper treatment changes the hippocampal phosphoproteomic profile and perturbs mitochondrial function in a mouse model of Alzheimer's disease. Free Radic Biol Med 2019; 135:144-156. [PMID: 30862541 DOI: 10.1016/j.freeradbiomed.2019.03.002] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/13/2018] [Revised: 02/19/2019] [Accepted: 03/05/2019] [Indexed: 12/21/2022]
Abstract
Excessive copper can cause neurotoxicity and contribute to the development of some neurological diseases; however, copper neurotoxicity and the potential mechanisms remain poorly understood. We used proteomics and phosphoproteomics to quantify protein changes in the hippocampus of wild-type and 3xTg-AD mice, both of which were treated at 6 months of age with 2 months of drinking water with or without added copper chloride (0.13 ppm concentration). A total of 3960 unique phosphopeptides (5290 phosphorylation sites) from 1406 phosphoproteins was identified. Differentially expressed phosphoproteins involved neuronal and synaptic function, transcriptional regulation, energy metabolism and mitochondrial function. In addition, low-dose copper treatment of wild-type mice decreased hippocampal mitochondrial copy number, mitochondrial biogenesis and disrupted mitochondrial dynamics; these changes were associated with increased hydrogen peroxide production (H2O2), reduced cytochrome oxidase activity and decreased ATP content. In 3xTg-AD mice, identical low-dose oral copper treatment increased axonal degeneration, which was associated with altered phosphorylation of Camk2α at T286 and phosphorylation of mitogen-activated protein kinase (ERK1/2), which involved long-term potentiation (LTP) signaling. Mitochondrial dysfunction was mainly related to changes in phosphorylation levels of glycogen synthase kinase-3 beta (GSK3β) and serine/threonine-protein phosphatase 2B catalytic subunit alpha isoform (Ppp3ca), which involved mitochondrial biogenesis signaling. In sum, low-dose oral copper treatment changes the phosphorylation of key hippocampal proteins involved in mitochondrial, synaptic and axonal integrity. These data showing that excess of copper speeds some early events of AD changes observed suggest that excess circulating copper has the potential to perturb brain function of wild-type mice and exacerbate neurodegenerative changes in a mouse model of AD.
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Affiliation(s)
- Chongyang Chen
- College of Pharmacy, Jinan University, Guangzhou, 510632, China; Key Laboratory of Modern Toxicology of Shenzhen, Shenzhen Center for Disease Control and Prevention, Shenzhen, 518055, China
| | - Xin Jiang
- Department of Geriatrics, The Second Clinical Medical College (Shenzhen People's Hospital), Jinan University, Guangdong, China
| | - Yingchao Li
- College of Pharmacy, Jinan University, Guangzhou, 510632, China; Key Laboratory of Modern Toxicology of Shenzhen, Shenzhen Center for Disease Control and Prevention, Shenzhen, 518055, China
| | - Haitao Yu
- Key Laboratory of Modern Toxicology of Shenzhen, Shenzhen Center for Disease Control and Prevention, Shenzhen, 518055, China
| | - Shupeng Li
- State Key Laboratory of Oncogenomics, School of Chemical Biology and Biotechnology, Peking University Shenzhen Graduate School, Shenzhen, 518055, China
| | - Zaijun Zhang
- Institute of New Drug Research and Guangzhou, Key Laboratory of Innovative Chemical Drug Research in Cardio-cerebrovascular Diseases, Jinan University College of Pharmacy, Guangzhou, 510632, China
| | - Hua Xu
- College of Pharmacy, Jinan University, Guangzhou, 510632, China.
| | - Ying Yang
- Department of Pathophysiology, School of Basic Medicine and the Collaborative Innovation Center for Brain Science, Key Laboratory of Ministry of Education of China for Neurological Disorders, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Gongping Liu
- Department of Pathophysiology, School of Basic Medicine and the Collaborative Innovation Center for Brain Science, Key Laboratory of Ministry of Education of China for Neurological Disorders, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Feiqi Zhu
- Cognitive Impairment Ward of Neurology Department, The 3rd Affiliated Hospital of Shenzhen University, China
| | - Xiaohu Ren
- Key Laboratory of Modern Toxicology of Shenzhen, Shenzhen Center for Disease Control and Prevention, Shenzhen, 518055, China
| | - Liangyu Zou
- Department of Neurology, Shenzhen People's Hospital, Second Clinical College, Jinan University, Shenzhen, 518020, China
| | - Benhong Xu
- Key Laboratory of Modern Toxicology of Shenzhen, Shenzhen Center for Disease Control and Prevention, Shenzhen, 518055, China
| | - Jianjun Liu
- Key Laboratory of Modern Toxicology of Shenzhen, Shenzhen Center for Disease Control and Prevention, Shenzhen, 518055, China
| | - Peter S Spencer
- Department of Neurology, School of Medicine, Oregon Institute of Occupational Health Sciences, Oregon Health & Science University, Portland, OR, 97239, USA
| | - Xifei Yang
- Key Laboratory of Modern Toxicology of Shenzhen, Shenzhen Center for Disease Control and Prevention, Shenzhen, 518055, China.
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Aivazidis S, Anderson CC, Roede JR. Toxicant-mediated redox control of proteostasis in neurodegeneration. CURRENT OPINION IN TOXICOLOGY 2018; 13:22-34. [PMID: 31602419 DOI: 10.1016/j.cotox.2018.12.007] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Disruption in redox signaling and control of cellular processes has emerged as a key player in many pathologies including neurodegeneration. As protein aggregations are a common hallmark of several neuronal pathologies, a firm understanding of the interplay between redox signaling, oxidative and free radical stress, and proteinopathies is required to sort out the complex mechanisms in these diseases. Fortunately, models of toxicant-induced neurodegeneration can be utilized to evaluate and report mechanistic alterations in the proteostasis network (PN). The epidemiological links between environmental toxicants and neurological disease gives further credence into characterizing the toxicant-mediated PN disruptions observed in these conditions. Reviewed here are examples of mechanistic interaction between oxidative or free radical stress and PN alterations. Additionally, investigations into toxicant-mediated PN disruptions, specifically focusing on environmental metals and pesticides, are discussed. Finally, we emphasize the need to distinguish whether the presence of protein aggregations are contributory to phenotypes related to neurodegeneration, or if they are a byproduct of PN deficiencies.
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Affiliation(s)
- Stefanos Aivazidis
- Department of Pharmaceutical Sciences, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of Colorado Anschutz Medical Campus, Aurora, CO 80045
| | - Colin C Anderson
- Department of Pharmaceutical Sciences, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of Colorado Anschutz Medical Campus, Aurora, CO 80045
| | - James R Roede
- Department of Pharmaceutical Sciences, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of Colorado Anschutz Medical Campus, Aurora, CO 80045
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13
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Nam E, Han J, Suh JM, Yi Y, Lim MH. Link of impaired metal ion homeostasis to mitochondrial dysfunction in neurons. Curr Opin Chem Biol 2017; 43:8-14. [PMID: 29100100 DOI: 10.1016/j.cbpa.2017.09.009] [Citation(s) in RCA: 47] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2017] [Revised: 09/03/2017] [Accepted: 09/12/2017] [Indexed: 02/07/2023]
Abstract
Manganese, iron, copper, and zinc are observed to play essential roles in mitochondria. The overload and depletion of metal ions in mitochondria under pathological conditions, however, could disturb mitochondrial compartments and functions leading to cell death. In this review, we mainly summarize how impaired metal ion homeostasis affects mitochondrial systems, such as membrane potentials, the tricarboxylic acid cycle, oxidative phosphorylation, and glutathione metabolism. In addition, based on current findings, we briefly describe a recent understanding of the relationship among metal ion dysregulation, mitochondrial dysfunction, and the pathogeneses of neurodegenerative diseases.
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Affiliation(s)
- Eunju Nam
- Department of Chemistry, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, Republic of Korea
| | - Jiyeon Han
- Department of Chemistry, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, Republic of Korea
| | - Jong-Min Suh
- Department of Chemistry, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, Republic of Korea
| | - Yelim Yi
- Department of Chemistry, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, Republic of Korea
| | - Mi Hee Lim
- Department of Chemistry, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, Republic of Korea.
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