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Huang Y, Guo X, Lu S, Chen Q, Wang Z, Lai L, Liu Q, Zhu X, Luo L, Li J, Huang Y, Gao H, Zhang Z, Bu Q, Cen X. Long-term exposure to cadmium disrupts neurodevelopment in mature cerebral organoids. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 912:168923. [PMID: 38065485 DOI: 10.1016/j.scitotenv.2023.168923] [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: 10/06/2023] [Revised: 11/25/2023] [Accepted: 11/25/2023] [Indexed: 01/18/2024]
Abstract
Cadmium (Cd) is a pervasive environmental pollutant. Increasing evidence suggests that Cd exposure during pregnancy can induce adverse neurodevelopmental outcomes. However, due to the limitations of neural cell and animal models, it is challenging to study the developmental neurotoxicity and underlying toxicity mechanism of long-term exposure to environmental pollutants during human brain development. In this study, chronic Cd exposure was performed in human mature cerebral organoids for 49 or 77 days. Our study found that prolonged exposure to Cd resulted in the inhibition of cerebral organoid growth and the disruption of neural differentiation and cortical layer organization. These potential consequences of chronic Cd exposure may include impaired GFAP expression, a reduction in SOX2+ neuronal progenitor cells, an increase in TUJ1+ immature neurons, as well as an initial increase and a subsequent decrease in both TBR2+ intermediate progenitors and CTIP2+ deep layer cortical neurons. Transcriptomic analyses revealed that long-term exposure to Cd disrupted zinc and copper ion homeostasis through excessive synthesis of metallothionein and disturbed synaptogenesis, as evidenced by inhibited postsynaptic protein. Our study employed mature cerebral organoids to evaluate the developmental neurotoxicity induced by long-term Cd exposure.
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Affiliation(s)
- Yan Huang
- Molecular Toxicology Key Laboratory of Sichuan Provincial Education office, Institute of Systems Epidemiology, West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu 610041, China
| | - Xinhua Guo
- Molecular Toxicology Key Laboratory of Sichuan Provincial Education office, Institute of Systems Epidemiology, West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu 610041, China
| | - Shiya Lu
- Molecular Toxicology Key Laboratory of Sichuan Provincial Education office, Institute of Systems Epidemiology, West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu 610041, China
| | - Qiqi Chen
- Molecular Toxicology Key Laboratory of Sichuan Provincial Education office, Institute of Systems Epidemiology, West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu 610041, China
| | - Zhiqiu Wang
- Molecular Toxicology Key Laboratory of Sichuan Provincial Education office, Institute of Systems Epidemiology, West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu 610041, China
| | - Li Lai
- National Chengdu Center for Safety Evaluation of Drugs, State Key Lab of Biotherapy/Collaborative Innovation Center of Biotherapy, West China Hospital, West China Medical School, Sichuan University, Chengdu 610041, China
| | - Qian Liu
- National Chengdu Center for Safety Evaluation of Drugs, State Key Lab of Biotherapy/Collaborative Innovation Center of Biotherapy, West China Hospital, West China Medical School, Sichuan University, Chengdu 610041, China
| | - Xizhi Zhu
- Molecular Toxicology Key Laboratory of Sichuan Provincial Education office, Institute of Systems Epidemiology, West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu 610041, China; National Chengdu Center for Safety Evaluation of Drugs, State Key Lab of Biotherapy/Collaborative Innovation Center of Biotherapy, West China Hospital, West China Medical School, Sichuan University, Chengdu 610041, China
| | - Li Luo
- Department of Gynaecology and Obstetrics, West China Second University Hospital, Sichuan University, Chengdu, China
| | - Jiayuan Li
- Molecular Toxicology Key Laboratory of Sichuan Provincial Education office, Institute of Systems Epidemiology, West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu 610041, China
| | - Yina Huang
- Molecular Toxicology Key Laboratory of Sichuan Provincial Education office, Institute of Systems Epidemiology, West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu 610041, China
| | - Hong Gao
- Department of Food Science and Technology, College of Biomass and Engineering, Sichuan University, Chengdu 610065, China
| | - Zunzhen Zhang
- Molecular Toxicology Key Laboratory of Sichuan Provincial Education office, Institute of Systems Epidemiology, West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu 610041, China
| | - Qian Bu
- Molecular Toxicology Key Laboratory of Sichuan Provincial Education office, Institute of Systems Epidemiology, West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu 610041, China.
| | - Xiaobo Cen
- National Chengdu Center for Safety Evaluation of Drugs, State Key Lab of Biotherapy/Collaborative Innovation Center of Biotherapy, West China Hospital, West China Medical School, Sichuan University, Chengdu 610041, China.
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Zyuz'kov GN, Miroshnichenko LA, Kotlovskaya LY, Chaikovskii AV. The Role of cAMP-Dependent Intracellular Signaling Pathways in the Regulation of the Functions of Neural Stem Cells and Neuroglial Cells in Amyloid-β-Induced Neurodegeneration. Bull Exp Biol Med 2023; 175:437-441. [PMID: 37770785 DOI: 10.1007/s10517-023-05881-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2023] [Indexed: 09/30/2023]
Abstract
Under conditions of neurodegeneration modeled in vitro by the β-amyloid peptide-(25-35) fragment (Aβ25-35), we studied the role of individual links of cAMP-dependent intracellular signaling pathways in determining the proliferation and differentiation status of neural stem cells (NSCs) and colony-stimulating activity of supernatants from neuroglial cells. The important role of intracellular cAMP and PKA in the inhibition of the progression of the NSC cell cycle and stimulation of the process of their specialization induced by Aβ25-35 was found. The selective ability of PKA to block the production of factors constituting colony-stimulating activity by neuroglial cells under conditions of their cultivation in vitro with a neurotoxic agent was revealed. Our results suggests that inhibitors of adenylate cyclase and PKA can increase the degree of implementation of the growth potential of NSCs and conjugation of the processes of their proliferation and differentiation in Alzheimer's disease. At the same time, selective PKA blockers can also induce the production of NSC-stimulating factors by neuroglial cells.
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Affiliation(s)
- G N Zyuz'kov
- Laboratory of Pathophysiology and Experimental Therapy, E. D. Goldberg Research Institute of Pharmacology and Regenerative Medicine, Tomsk National Research Medical Center, Russian Academy of Sciences, Tomsk, Russia.
| | - L A Miroshnichenko
- Laboratory of Pathophysiology and Experimental Therapy, E. D. Goldberg Research Institute of Pharmacology and Regenerative Medicine, Tomsk National Research Medical Center, Russian Academy of Sciences, Tomsk, Russia
| | - L Yu Kotlovskaya
- Laboratory of Pathophysiology and Experimental Therapy, E. D. Goldberg Research Institute of Pharmacology and Regenerative Medicine, Tomsk National Research Medical Center, Russian Academy of Sciences, Tomsk, Russia
| | - A V Chaikovskii
- Laboratory of Pathophysiology and Experimental Therapy, E. D. Goldberg Research Institute of Pharmacology and Regenerative Medicine, Tomsk National Research Medical Center, Russian Academy of Sciences, Tomsk, Russia
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Ishihara K, Kawashita E, Akiba S. Bio-Metal Dyshomeostasis-Associated Acceleration of Aging and Cognitive Decline in Down Syndrome. Biol Pharm Bull 2023; 46:1169-1175. [PMID: 37661395 DOI: 10.1248/bpb.b23-00131] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/05/2023]
Abstract
Down syndrome (DS), which is caused by triplication of human chromosome 21 (Hsa21), exhibits some physical signs of accelerated aging, such as graying hair, wrinkles and menopause at an unusually young age. Development of early-onset Alzheimer's disease, which is frequently observed in adults with DS, is also suggested to occur due to accelerated aging of the brain. Several Hsa21 genes are suggested to be responsible for the accelerated aging in DS. In this review, we summarize these candidate genes and possible molecular mechanisms, and discuss the related key factors. In particular, we focus on copper, an essential trace element, as a key factor in the accelerated aging in DS. In addition, the physiological significance of brain copper accumulation in cognitive impairment is discussed. We herein provide our hypothesis on the copper dyshomeostasis-based pathophysiology of DS.
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Affiliation(s)
- Keiichi Ishihara
- Department of Pathological Biochemistry (Currently known as Laboratory of Pathological Biochemistry), Kyoto Pharmaceutical University
| | - Eri Kawashita
- Department of Pathological Biochemistry (Currently known as Laboratory of Pathological Biochemistry), Kyoto Pharmaceutical University
| | - Satoshi Akiba
- Department of Pathological Biochemistry (Currently known as Laboratory of Pathological Biochemistry), Kyoto Pharmaceutical University
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Zyuz’kov GN, Miroshnichenko LA, Kotlovskaya LY, Chaikovsky A. The Role of JAKs and STAT3 in Regulation of Regenerative-Competent Cells of the Nervous Tissue in β-Amyloid-Induced Neurodegeneration. Bull Exp Biol Med 2022; 173:419-423. [DOI: 10.1007/s10517-022-05560-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2022] [Indexed: 10/14/2022]
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Yamada J, Maeda S, Soya M, Nishida H, Iinuma KM, Jinno S. Alleviation of cognitive deficits via upregulation of chondroitin sulfate biosynthesis by lignan sesamin in a mouse model of neuroinflammation. J Nutr Biochem 2022; 108:109093. [PMID: 35724814 DOI: 10.1016/j.jnutbio.2022.109093] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2021] [Revised: 05/09/2022] [Accepted: 05/20/2022] [Indexed: 12/29/2022]
Abstract
Lignans are plant-derived compounds that act as partial estrogen agonists. Chondroitin sulfate proteoglycans (CSPGs) represent one of the major components of the extracellular matrix (ECM). Here we aimed to understand the role of sesamin (SES), a major lignan compound, in the biosynthesis and degradation of CSPGs in the mouse hippocampus because CSPGs play a key role in the regulation of cognitive functions through the promotion of adult neurogenesis. The expression of the pro-inflammatory cytokine interleukin-1β was decreased by SES administration in the hippocampus of lipopolysaccharide (LPS)-treated mice, a model of neuroinflammation-induced cognitive deficits. The expression of genes related to biosynthesis and degradation of CSPGs in the hippocampus of LPS-treated mice was both increased and decreased by SES administration. Further, the diffuse ECM labeling of CSPGs by Wisteria floribunda agglutinin (WFA) in the hippocampus of LPS-treated mice was increased by SES administration. The densities of neural stem cells, late transit-amplifying cells, and newborn-granule cells in the hippocampus of LPS-treated mice were also increased by SES administration. Moreover, SES-induced alterations in gene expression, WFA labeling, and adult neurogenesis in LPS-treated mice were more evident in the dorsal hippocampus (center of cognition) than in the ventral hippocampus (center of emotion). Neither LPS nor SES administration affected locomotor activity, anxiety-like behavior, and depression-related behavior. However, impairments in contextual memory and sensorimotor gating in LPS-treated mice were recovered by SES administration. Our results show that SES can promote adult hippocampal neurogenesis through the upregulation of CSPGs, which may alleviate cognitive deficits induced by neuroinflammation.
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Affiliation(s)
- Jun Yamada
- Department of Anatomy and Neuroscience, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Shoichiro Maeda
- Department of Anatomy and Neuroscience, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Mariko Soya
- Department of Anatomy and Neuroscience, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Hidefumi Nishida
- Department of Anatomy and Neuroscience, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Kyoko M Iinuma
- Department of Anatomy and Neuroscience, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Shozo Jinno
- Department of Anatomy and Neuroscience, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan.
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