1
|
Wang X, Guo W, Wang X, Hua Q, Tang F, Li X, Luan F, Zhang Z, Tian C, Zhuang X, Zhao L. Dual recognition strategy for ultra-sensitive fluorescent detection of Hg2+ at femto-molar level based on aptamer functionalized sulfur quantum dots. ARAB J CHEM 2022. [DOI: 10.1016/j.arabjc.2022.104080] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
|
2
|
Huang M, Zhu L, Chen Y, Jin Y, Fang Z, Yao Y. Serum/Plasma Zinc Is Apparently Increased in Ischemic Stroke: a Meta-analysis. Biol Trace Elem Res 2022; 200:615-623. [PMID: 33825164 DOI: 10.1007/s12011-021-02703-4] [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: 10/11/2020] [Accepted: 03/30/2021] [Indexed: 11/29/2022]
Abstract
Zinc (Zn) is found in many neuronal pathways in the brain and has implications for neuromodulation and cerebrovascular disease. However, the association between Zn levels and stroke risk remains controversial. Therefore, we conducted a meta-analysis to explore these relationships. A systematic literature search using PubMed, EMBASE database, and Google Scholar was performed for relevant articles from inception to August 2020. Standardized mean differences (SMDs) and 95% confidence intervals (CIs) were considered the effect sizes and statistical analyses were performed using Stata 12.0. A total of 12 studies involving 1878 cases of stroke and 1754 controls were enrolled. Overall, the meta-analysis demonstrated no significant difference in Zn levels between the stroke group and control group (SMD =-0.18, 95% CI =-0.69 to 0.32, P = 0.480). Subgroup analysis showed that type of stroke had an influence on the Zn levels. A meta-analysis of nine ischemic stroke (IS) studies, which included 1645 cases and 1585 controls, revealed that the Zn levels were significantly higher in IS patients than in controls (SMD (95% CI): 0.61(0.04, 1.19), P = 0.036), but no significant association was found between Zn levels and risk of hemorrhagic stroke (P = 0.113). Egger's test indicated no significant publication bias. This meta-analysis indicates that higher Zn levels may be associated with increased risk of IS; however, these findings should be further confirmed.
Collapse
Affiliation(s)
- Mengyun Huang
- Department of Epidemiology and Biostatistics, School of Public Health, Institute of Chronic Disease Prevention and Control, Wannan Medical College, No. 22, Wenchang Road, Wuhu, 241002, China
| | - Lijun Zhu
- Department of Epidemiology and Biostatistics, School of Public Health, Institute of Chronic Disease Prevention and Control, Wannan Medical College, No. 22, Wenchang Road, Wuhu, 241002, China
| | - Yan Chen
- Department of Epidemiology and Biostatistics, School of Public Health, Institute of Chronic Disease Prevention and Control, Wannan Medical College, No. 22, Wenchang Road, Wuhu, 241002, China
- Department of Social Medicine and Maternal & Child Health, School of Public Health, Shandong University, Jinan, 250012, China
| | - Yuelong Jin
- Department of Epidemiology and Biostatistics, School of Public Health, Institute of Chronic Disease Prevention and Control, Wannan Medical College, No. 22, Wenchang Road, Wuhu, 241002, China
| | - Zhengmei Fang
- Department of Epidemiology and Biostatistics, School of Public Health, Institute of Chronic Disease Prevention and Control, Wannan Medical College, No. 22, Wenchang Road, Wuhu, 241002, China
| | - Yingshui Yao
- Department of Epidemiology and Biostatistics, School of Public Health, Institute of Chronic Disease Prevention and Control, Wannan Medical College, No. 22, Wenchang Road, Wuhu, 241002, China.
- Department of Medicine, Anhui College of Traditional Chinese Medicine, No. 18, Wuxia Shanxi Road, Wuhu, 241003, China.
| |
Collapse
|
3
|
Tanaka KI, Shimoda M, Kasai M, Ikeda M, Ishima Y, Kawahara M. Involvement of SAPK/JNK Signaling Pathway in Copper Enhanced Zinc-Induced Neuronal Cell Death. Toxicol Sci 2020; 169:293-302. [PMID: 30768131 DOI: 10.1093/toxsci/kfz043] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Zinc (Zn) plays an important role in many organisms in various physiological functions such as cell division, immune mechanisms and protein synthesis. However, excessive Zn release is induced in pathological situations and causes neuronal cell death. Previously, we reported that Cu ions (Cu2+) markedly exacerbates Zn2+-induced neuronal cell death by potentiating oxidative stress and the endoplasmic reticulum stress response. In contrast, the stress-activated protein kinase/c-Jun amino-terminal kinase (SAPK/JNK) signaling pathway is important in neuronal cell death. Thus, in this study, we focused on the SAPK/JNK signaling pathway and examined its involvement in Cu2+/Zn2+-induced neurotoxicity. Initially, we examined expression of factors involved in the SAPK/JNK signaling pathway. Accordingly, we found that phosphorylated (ie, active) forms of SAPK/JNK (p46 and p54) are increased by CuCl2 and ZnCl2 co-treatment in hypothalamic neuronal mouse cells (GT1-7 cells). Downstream factors of SAPK/JNK, phospho-c-Jun, and phospho-activating transcription factor 2 are also induced by CuCl2 and ZnCl2 co-treatment. Moreover, an inhibitor of the SAPK/JNK signaling pathway, SP600125, significantly suppressed neuronal cell death and activation of the SAPK/JNK signaling pathway induced by CuCl2 and ZnCl2 cotreatment. Finally, we examined involvement of oxidative stress in activation of the SAPK/JNK signaling pathway, and found that human serum albumin-thioredoxin fusion protein, an antioxidative protein, suppresses activation of the SAPK/JNK signaling pathway. On the basis of these results, our findings suggest that activation of ZnCl2-dependent SAPK/JNK signaling pathway is important in neuronal cell death, and CuCl2-induced oxidative stress triggers the activation of this pathway.
Collapse
Affiliation(s)
- Ken-Ichiro Tanaka
- Department of Bio-Analytical Chemistry, Faculty of Pharmacy, Musashino University, Nishitokyo-shi, Tokyo, Japan
| | - Mikako Shimoda
- Department of Bio-Analytical Chemistry, Faculty of Pharmacy, Musashino University, Nishitokyo-shi, Tokyo, Japan
| | - Misato Kasai
- Department of Bio-Analytical Chemistry, Faculty of Pharmacy, Musashino University, Nishitokyo-shi, Tokyo, Japan
| | - Mayumi Ikeda
- Department of Pharmacokinetics and Biopharmaceutics, Institute of Biomedical Sciences, Tokushima University, Tokushima, Japan
| | - Yu Ishima
- Department of Pharmacokinetics and Biopharmaceutics, Institute of Biomedical Sciences, Tokushima University, Tokushima, Japan
| | - Masahiro Kawahara
- Department of Bio-Analytical Chemistry, Faculty of Pharmacy, Musashino University, Nishitokyo-shi, Tokyo, Japan
| |
Collapse
|
4
|
Teng Z, Guo Y, Liu X, Zhang J, Niu X, Yu Q, Deng X, Wang J. Theaflavin-3,3´-digallate increases the antibacterial activity of β-lactam antibiotics by inhibiting metallo-β-lactamase activity. J Cell Mol Med 2019; 23:6955-6964. [PMID: 31392792 PMCID: PMC6787515 DOI: 10.1111/jcmm.14580] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2019] [Revised: 06/27/2019] [Accepted: 07/11/2019] [Indexed: 01/16/2023] Open
Abstract
Metallo-β-lactamases (MBLs) are some of the best known β-lactamases produced by common Gram-positive and Gram-negative pathogens and are crucial factors in the rise of bacterial resistance against β-lactam antibiotics. Although many types of β-lactamase inhibitors have been successfully developed and used in clinical settings, no MBL inhibitors have been identified to date. Nitrocefin, checkerboard and time-kill assays were used to examine the enzyme behaviour in vitro. Molecular docking calculation, molecular dynamics simulation, calculation of the binding free energy and ligand-residue interaction decomposition were used for mechanistic research. The behaviour of the enzymes in vivo was investigated by a mouse infection experiment. We showed that theaflavin-3,3´-digallate (TFDG), a natural compound lacking antibacterial activities, can inhibit the hydrolysis of MBLs. In the checkerboard and time-kill assays, we observed a synergistic effect of TFDG with β-lactam antibiotics against methicillin-resistant Staphylococcus aureus BAA1717. Molecular dynamics simulations were used to identify the mechanism of the inhibition of MBLs by TFDG, and we observed that the hydrolysis activity of the MBLs was restricted by the binding of TFDG to Gln242 and Ser369. Furthermore, the combination of TFDG with β-lactam antibiotics showed effective protection in a mouse Staphylococcus aureus pneumonia model. These findings suggest that TFDG can effectively inhibit the hydrolysis activity of MBLs and enhance the antibacterial activity of β-lactam antibiotics against pathogens in vitro and in vivo.
Collapse
Affiliation(s)
- Zihao Teng
- Department of Respiratory MedicineThe First Hospital of Jilin UniversityChangchunChina
- Key Laboratory of Zoonosis Research, Ministry of Education, Institute of Zoonosis, College of Veterinary MedicineJilin UniversityChangchunChina
| | - Yan Guo
- Department of Respiratory MedicineThe First Hospital of Jilin UniversityChangchunChina
- Key Laboratory of Zoonosis Research, Ministry of Education, Institute of Zoonosis, College of Veterinary MedicineJilin UniversityChangchunChina
| | - Xingqi Liu
- Department of Respiratory MedicineThe First Hospital of Jilin UniversityChangchunChina
- Key Laboratory of Zoonosis Research, Ministry of Education, Institute of Zoonosis, College of Veterinary MedicineJilin UniversityChangchunChina
| | - Jian Zhang
- Department of Respiratory MedicineThe First Hospital of Jilin UniversityChangchunChina
- Key Laboratory of Zoonosis Research, Ministry of Education, Institute of Zoonosis, College of Veterinary MedicineJilin UniversityChangchunChina
| | - Xiaodi Niu
- Department of Respiratory MedicineThe First Hospital of Jilin UniversityChangchunChina
| | - Qinlei Yu
- Jilin Provincial Animal Disease Control CenterChangchunChina
| | - Xuming Deng
- Department of Respiratory MedicineThe First Hospital of Jilin UniversityChangchunChina
- Key Laboratory of Zoonosis Research, Ministry of Education, Institute of Zoonosis, College of Veterinary MedicineJilin UniversityChangchunChina
| | - Jianfeng Wang
- Department of Respiratory MedicineThe First Hospital of Jilin UniversityChangchunChina
- Key Laboratory of Zoonosis Research, Ministry of Education, Institute of Zoonosis, College of Veterinary MedicineJilin UniversityChangchunChina
| |
Collapse
|
5
|
Nickel Enhances Zinc-Induced Neuronal Cell Death by Priming the Endoplasmic Reticulum Stress Response. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2019; 2019:9693726. [PMID: 31316722 PMCID: PMC6604344 DOI: 10.1155/2019/9693726] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/15/2019] [Revised: 05/16/2019] [Accepted: 05/29/2019] [Indexed: 12/11/2022]
Abstract
Trace metals such as zinc (Zn), copper (Cu), and nickel (Ni) play important roles in various physiological functions such as immunity, cell division, and protein synthesis in a wide variety of species. However, excessive amounts of these trace metals cause disorders in various tissues of the central nervous system, respiratory system, and other vital organs. Our previous analysis focusing on neurotoxicity resulting from interactions between Zn and Cu revealed that Cu2+ markedly enhances Zn2+-induced neuronal cell death by activating oxidative stress and the endoplasmic reticulum (ER) stress response. However, neurotoxicity arising from interactions between zinc and metals other than copper has not been examined. Thus, in the current study, we examined the effect of Ni2+ on Zn2+-induced neurotoxicity. Initially, we found that nontoxic concentrations (0–60 μM) of Ni2+ enhance Zn2+-induced neurotoxicity in an immortalized hypothalamic neuronal cell line (GT1-7) in a dose-dependent manner. Next, we analyzed the mechanism enhancing neuronal cell death, focusing on the ER stress response. Our results revealed that Ni2+ treatment significantly primed the Zn2+-induced ER stress response, especially expression of the CCAAT-enhancer-binding protein homologous protein (CHOP). Finally, we examined the effect of carnosine (an endogenous peptide) on Ni2+/Zn2+-induced neurotoxicity and found that carnosine attenuated Ni2+/Zn2+-induced neuronal cell death and ER stress occurring before cell death. Based on our results, Ni2+ treatment significantly enhances Zn2+-induced neuronal cell death by priming the ER stress response. Thus, compounds that decrease the ER stress response, such as carnosine, may be beneficial for neurological diseases.
Collapse
|
6
|
Rayman JB, Karl KA, Kandel ER. TIA-1 Self-Multimerization, Phase Separation, and Recruitment into Stress Granules Are Dynamically Regulated by Zn 2. Cell Rep 2019; 22:59-71. [PMID: 29298433 DOI: 10.1016/j.celrep.2017.12.036] [Citation(s) in RCA: 63] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2017] [Revised: 11/08/2017] [Accepted: 12/11/2017] [Indexed: 01/09/2023] Open
Abstract
Stress granules are non-membranous structures that transiently form in the cytoplasm during cellular stress, where they promote translational repression of non-essential RNAs and modulate cell signaling by sequestering key signal transduction proteins. These and other functions of stress granules facilitate an adaptive cellular response to environmental adversity. A key component of stress granules is the prion-related RNA-binding protein, T cell intracellular antigen-1 (TIA-1). Here, we report that recombinant TIA-1 undergoes rapid multimerization and phase separation in the presence of divalent zinc, which can be reversed by the zinc chelator, TPEN. Similarly, the formation and maintenance of TIA-1-positive stress granules in arsenite-treated cells are inhibited by TPEN. In addition, Zn2+ is released in cells treated with arsenite, before stress granule formation. These findings suggest that Zn2+ is a physiological ligand of TIA-1, acting as a stress-inducible second messenger to promote multimerization of TIA-1 and subsequent localization into stress granules.
Collapse
Affiliation(s)
- Joseph B Rayman
- Department of Neuroscience, College of Physicians and Surgeons of Columbia University, New York, NY 10032, USA; Zuckerman Mind Brain Behavior Institute, Columbia University, New York, NY 10032, USA
| | - Kevin A Karl
- Department of Neuroscience, College of Physicians and Surgeons of Columbia University, New York, NY 10032, USA; Howard Hughes Medical Institute at Columbia University, New York, NY 10032, USA; Zuckerman Mind Brain Behavior Institute, Columbia University, New York, NY 10032, USA
| | - Eric R Kandel
- Department of Neuroscience, College of Physicians and Surgeons of Columbia University, New York, NY 10032, USA; Department of Psychiatry, College of Physicians and Surgeons of Columbia University, New York, NY 10032, USA; Howard Hughes Medical Institute at Columbia University, New York, NY 10032, USA; Zuckerman Mind Brain Behavior Institute, Columbia University, New York, NY 10032, USA; Kavli Institute for Brain Science, Columbia University, New York, NY 10032, USA.
| |
Collapse
|
7
|
Zhao Y, Tan CH, Krauchunas A, Scharf A, Dietrich N, Warnhoff K, Yuan Z, Druzhinina M, Gu SG, Miao L, Singson A, Ellis RE, Kornfeld K. The zinc transporter ZIPT-7.1 regulates sperm activation in nematodes. PLoS Biol 2018; 16:e2005069. [PMID: 29879108 PMCID: PMC5991658 DOI: 10.1371/journal.pbio.2005069] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2017] [Accepted: 04/24/2018] [Indexed: 02/06/2023] Open
Abstract
Sperm activation is a fascinating example of cell differentiation, in which immotile spermatids undergo a rapid and dramatic transition to become mature, motile sperm. Because the sperm nucleus is transcriptionally silent, this transition does not involve transcriptional changes. Although Caenorhabditis elegans is a leading model for studies of sperm activation, the mechanisms by which signaling pathways induce this transformation remain poorly characterized. Here we show that a conserved transmembrane zinc transporter, ZIPT-7.1, regulates the induction of sperm activation in Caenorhabditis nematodes. The zipt-7.1 mutant hermaphrodites cannot self-fertilize, and males reproduce poorly, because mutant spermatids are defective in responding to activating signals. The zipt-7.1 gene is expressed in the germ line and functions in germ cells to promote sperm activation. When expressed in mammalian cells, ZIPT-7.1 mediates zinc transport with high specificity and is predominantly located on internal membranes. Finally, genetic epistasis places zipt-7.1 at the end of the spe-8 sperm activation pathway, and ZIPT-7.1 binds SPE-4, a presenilin that regulates sperm activation. Based on these results, we propose a new model for sperm activation. In spermatids, inactive ZIPT-7.1 is localized to the membranous organelles, which contain higher levels of zinc than the cytoplasm. When sperm activation is triggered, ZIPT-7.1 activity increases, releasing zinc from internal stores. The resulting increase in cytoplasmic zinc promotes the phenotypic changes characteristic of activation. Thus, zinc signaling is a key step in the signal transduction process that mediates sperm activation, and we have identified a zinc transporter that is central to this activation process. Sperm are specialized cells with transcriptionally silent DNA that has been packaged for delivery into the egg. In their final step of development, immature sperm undergo a rapid transition from nonmotile cells to mature, motile sperm capable of fertilization. The signals that trigger this change are not clearly understood. By identifying mutants in the roundworm Caenorhabditis elegans that are defective in sperm activation, we discovered a conserved transmembrane protein, ZIPT-7.1, that transports zinc and promotes sperm activation in both sexes. ZIPT-7.1 is expressed in the germ line and functions there to control sperm activation. When expressed ectopically in mammalian cells, the protein specifically transports zinc across membranes and localizes primarily to membranes within the cell. Previous genetic studies had identified two pathways that mediate sperm activation in C. elegans, and our results suggest that zipt-7.1 acts at the end of one of these two, the spe-8 pathway. We propose that when this pathway triggers sperm activation, it acts through ZIPT-7.1, which mediates the release of zinc from internal stores in the immature sperm. This released zinc functions as a second messenger to promote the differentiation of mature, motile sperm.
Collapse
Affiliation(s)
- Yanmei Zhao
- Key Laboratory of RNA Biology, Institute of Biophysics, CAS Center for Excellence in Biomacromolecules, Chinese Academy of Sciences, Beijing, China
- College of Life Sciences, University of Chinese Academy of Sciences, Beijing, China
- Department of Molecular Biology, Rowan University SOM, Stratford, New Jersey, United States of America
| | - Chieh-Hsiang Tan
- Department of Developmental Biology, Washington University School of Medicine, St. Louis, Missouri, United States of America
| | - Amber Krauchunas
- Waksman Institute, Rutgers University, Piscataway, New Jersey, United States of America
| | - Andrea Scharf
- Department of Developmental Biology, Washington University School of Medicine, St. Louis, Missouri, United States of America
| | - Nicholas Dietrich
- Department of Developmental Biology, Washington University School of Medicine, St. Louis, Missouri, United States of America
| | - Kurt Warnhoff
- Department of Developmental Biology, Washington University School of Medicine, St. Louis, Missouri, United States of America
| | - Zhiheng Yuan
- Key Laboratory of RNA Biology, Institute of Biophysics, CAS Center for Excellence in Biomacromolecules, Chinese Academy of Sciences, Beijing, China
- College of Life Sciences, University of Chinese Academy of Sciences, Beijing, China
| | - Marina Druzhinina
- Waksman Institute, Rutgers University, Piscataway, New Jersey, United States of America
| | - Sam Guoping Gu
- Department of Molecular Biology and Biochemistry, Rutgers University, Piscataway, New Jersey, United States of America
| | - Long Miao
- Key Laboratory of RNA Biology, Institute of Biophysics, CAS Center for Excellence in Biomacromolecules, Chinese Academy of Sciences, Beijing, China
- College of Life Sciences, University of Chinese Academy of Sciences, Beijing, China
| | - Andrew Singson
- Waksman Institute, Rutgers University, Piscataway, New Jersey, United States of America
| | - Ronald E. Ellis
- Department of Molecular Biology, Rowan University SOM, Stratford, New Jersey, United States of America
- * E-mail: (REE); (KK)
| | - Kerry Kornfeld
- Department of Developmental Biology, Washington University School of Medicine, St. Louis, Missouri, United States of America
- * E-mail: (REE); (KK)
| |
Collapse
|
8
|
Zhang W, Liu Y, Hureau C, Robert A, Meunier B. N 4 -Tetradentate Chelators Efficiently Regulate Copper Homeostasis and Prevent ROS Production Induced by Copper-Amyloid-β 1-16. Chemistry 2018; 24:7825-7829. [PMID: 29687932 DOI: 10.1002/chem.201801387] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2018] [Indexed: 01/15/2023]
Abstract
The disruption of copper homeostasis and the oxidative stress induced by Cu-amyloids are crucial features of Alzheimer's disease pathology. The copper specific N4 -tetradendate ligands TDMQ20 and 1 are able to fully inhibit in vitro the aerobic oxidation of ascorbate induced by Cu-Aβ1-16 , even in the presence of 100 molar equivalents of ZnII with respect to CuII , whereas other ligands with N2 O2 or N3 O2 coordination spheres failed to do so. This essential result indicates that, in addition to metal selectivity, the coordination sphere of copper chelators should exhibit a N4 -tetradendate motif to be able to reduce an oxidative stress in the zinc-rich physiological environment of brain. The N4 -scaffolds of these two aminoquinoline-based ligands, TDMQ20 or 1, suitable for a square-planar coordination of copper(II), allowed them to enhance both the selectivity for copper and the ability to reduce the oxidative stress induced by copper-amyloid in a zinc-rich environment.
Collapse
Affiliation(s)
- Weixin Zhang
- School of Chemical Engineering and Light Industry, Guangdong University of Technology (GDUT), Higher Education Mega Center, 100 Waihuan Xi road, Panyu District, Guangzhou, 510006, P. R. China.,Laboratoire de Chimie de Coordination du CNRS, 205 route de Narbonne, BP 44099, 31077, Toulouse cedex 4, France.,Université de Toulouse, 31077, Toulouse Cedex 4, France
| | - Yan Liu
- School of Chemical Engineering and Light Industry, Guangdong University of Technology (GDUT), Higher Education Mega Center, 100 Waihuan Xi road, Panyu District, Guangzhou, 510006, P. R. China
| | - Christelle Hureau
- Laboratoire de Chimie de Coordination du CNRS, 205 route de Narbonne, BP 44099, 31077, Toulouse cedex 4, France.,Université de Toulouse, 31077, Toulouse Cedex 4, France
| | - Anne Robert
- Laboratoire de Chimie de Coordination du CNRS, 205 route de Narbonne, BP 44099, 31077, Toulouse cedex 4, France.,Université de Toulouse, 31077, Toulouse Cedex 4, France
| | - Bernard Meunier
- School of Chemical Engineering and Light Industry, Guangdong University of Technology (GDUT), Higher Education Mega Center, 100 Waihuan Xi road, Panyu District, Guangzhou, 510006, P. R. China.,Laboratoire de Chimie de Coordination du CNRS, 205 route de Narbonne, BP 44099, 31077, Toulouse cedex 4, France.,Université de Toulouse, 31077, Toulouse Cedex 4, France
| |
Collapse
|
9
|
Baltaci AK, Yuce K, Mogulkoc R. Zinc Metabolism and Metallothioneins. Biol Trace Elem Res 2018; 183:22-31. [PMID: 28812260 DOI: 10.1007/s12011-017-1119-7] [Citation(s) in RCA: 79] [Impact Index Per Article: 13.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/12/2017] [Accepted: 08/02/2017] [Indexed: 12/20/2022]
Abstract
Among the trace elements, zinc is one of the most used elements in biological systems. Zinc is found in the structure of more than 2700 enzymes, including hydrolases, transferases, oxyreductases, ligases, isomerases, and lyases. Not surprisingly, it is present in almost all body cells. Preserving the stability and integrity of biological membranes and ion channels, zinc is also an intracellular regulator and provides structural support to proteins during molecular interactions. It acts as a structural element in nucleic acids or other gene-regulating proteins. Metallothioneins, the low molecular weight protein family rich in cysteine groups, are involved significantly in numerous physiological and pathological processes including particularly oxidative stress. A critical role of metallothioneins (MT) is to bind zinc with high affinity and to serve as an intracellular zinc reservoir. By releasing free intracellular zinc when needed, MTs mediate the unique physiological roles of zinc. MT expression is induced by zinc elevation, and thus, zinc homeostasis is maintained. That MT mediates the effects of zinc, besides having strong radical scavenging effects, points to the critical part it plays in oxidative stress. The present review aims to give information on metallothioneins, which have critical importance in the metabolism and molecular pathways of zinc.
Collapse
Affiliation(s)
| | - Kemal Yuce
- Department of Physiology, Medical Faculty, Selcuk University, Konya, Turkey
| | - Rasim Mogulkoc
- Department of Physiology, Medical Faculty, Selcuk University, Konya, Turkey
| |
Collapse
|
10
|
Tanaka KI, Shimoda M, Chuang VTG, Nishida K, Kawahara M, Ishida T, Otagiri M, Maruyama T, Ishima Y. Thioredoxin-albumin fusion protein prevents copper enhanced zinc-induced neurotoxicity via its antioxidative activity. Int J Pharm 2017; 535:140-147. [PMID: 29122608 DOI: 10.1016/j.ijpharm.2017.11.012] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2017] [Revised: 10/20/2017] [Accepted: 11/05/2017] [Indexed: 11/29/2022]
Abstract
Zinc (Zn) is a co-factor for a vast number of enzymes, and functions as a regulator for immune mechanism and protein synthesis. However, excessive Zn release induced in pathological situations such as stroke or transient global ischemia is toxic. Previously, we demonstrated that the interaction of Zn and copper (Cu) is involved in the pathogenesis of Alzheimer's disease and vascular dementia. Furthermore, oxidative stress has been shown to play a significant role in the pathogenesis of various metal ions induced neuronal death. Thioredoxin-Albumin fusion (HSA-Trx) is a derivative of thioredoxin (Trx), an antioxidative protein, with improved plasma retention and stability of Trx. In this study, we examined the effect of HSA-Trx on Cu2+/Zn2+-induced neurotoxicity. Firstly, HSA-Trx was found to clearly suppress Cu2+/Zn2+-induced neuronal cell death in mouse hypothalamic neuronal cells (GT1-7 cells). Moreover, HSA-Trx markedly suppressed Cu2+/Zn2+-induced ROS production and the expression of oxidative stress related genes, such as heme oxygenase-1. In contrast, HSA-Trx did not affect the intracellular levels of both Cu2+ and Zn2+ after Cu2+/Zn2+ treatment. Finally, HSA-Trx was found to significantly suppress endoplasmic reticulum (ER) stress response induced by Cu2+/Zn2+ treatment in a dose dependent manner. These results suggest that HSA-Trx counteracted Cu2+/Zn2+-induced neurotoxicity by suppressing the production of ROS via interfering the related gene expressions, in addition to the highly possible radical scavenging activity of the fusion protein. Based on these findings, HSA-Trx has great potential as a promising therapeutic agent for the treatment of refractory neurological diseases.
Collapse
Affiliation(s)
- Ken-Ichiro Tanaka
- Department of Bio-Analytical Chemistry, Faculty of Pharmacy, Musashino University, 1-1-20 Shinmachi, Nishitokyo-shi, Tokyo 202-8585, Japan
| | - Mikako Shimoda
- Department of Bio-Analytical Chemistry, Faculty of Pharmacy, Musashino University, 1-1-20 Shinmachi, Nishitokyo-shi, Tokyo 202-8585, Japan
| | - Victor T G Chuang
- School of Pharmacy, Monash University Malaysia, Jalan Lagoon Selatan, 47500, Bandar Sunway, Selangor, Malaysia
| | - Kento Nishida
- Department of Biopharmaceutics, Graduate School of Pharmaceutical Sciences, Kumamoto University, 5-1 Oe-honmachi, Kumamoto 862-0973, Japan
| | - Masahiro Kawahara
- Department of Bio-Analytical Chemistry, Faculty of Pharmacy, Musashino University, 1-1-20 Shinmachi, Nishitokyo-shi, Tokyo 202-8585, Japan
| | - Tatsuhiro Ishida
- Department of Pharmacokinetics and Biopharmaceutics, Institute of Biomedical Sciences, Tokushima University, 1-78-1, Sho-machi, Tokushima 770-8505, Japan
| | - Masaki Otagiri
- Faculty of Pharmaceutical Sciences and DDS Research Institute, Sojo University, 1-22-4 Ikeda, Nishi-ku, Kumamoto 860-0082, Japan
| | - Toru Maruyama
- Department of Biopharmaceutics, Graduate School of Pharmaceutical Sciences, Kumamoto University, 5-1 Oe-honmachi, Kumamoto 862-0973, Japan
| | - Yu Ishima
- Department of Pharmacokinetics and Biopharmaceutics, Institute of Biomedical Sciences, Tokushima University, 1-78-1, Sho-machi, Tokushima 770-8505, Japan.
| |
Collapse
|
11
|
Zieminska E, Ruszczynska A, Lazarewicz JW. Tetrabromobisphenol A disturbs zinc homeostasis in cultured cerebellar granule cells: A dual role in neurotoxicity. Food Chem Toxicol 2017; 109:363-375. [PMID: 28919410 DOI: 10.1016/j.fct.2017.09.021] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2017] [Revised: 09/11/2017] [Accepted: 09/12/2017] [Indexed: 01/15/2023]
Abstract
The brominated flame retardant tetrabromobisphenol A (TBBPA) has recognized neurotoxic properties mediated by intracellular Ca2+ imbalance and oxidative stress. Although these factors are known to trigger the release of Zn2+ from intracellular stores, the effects of TBBPA on Zn2+ homeostasis in neurons and the role of Zn2+in TBBPA neurotoxicity have not yet been studied. Therefore, we investigated zinc transients in primary cultures of rat cerebellar granule cells and assessed their involvement in TBBPA neurotoxicity. The results demonstrate that TBBPA releases Zn2+ from the intracellular stores and increases its intracellular concentration, followed by Zn2+ displacement from the cells. TBBPA-evoked Zn2+ transients are partially mediated by Ca2+ and ROS. Application of TPEN, Zn2+ chelator, potentiates TBBPA- and glutamate-induced 45Ca uptake, enhances TBBPA-induced ROS production and potentiates decreases in the ΔΨm in cells treated with 25 μM TBBPA, revealing the potential neuroprotective capacity of endogenous Zn2+. However, the administration of TPEN does not aggravate TBBPA neurotoxicity, and even slightly decreases neuronal death induced by 25 μM TBBPA. In summary, it was shown for the first time that TBBPA interferes with the cellular Zn2+ homeostasis in neuronal cultures, and we revealed complex roles for endogenous Zn2+ in cytoprotection and TBBPA toxicity in cultured neurons.
Collapse
Affiliation(s)
- Elzbieta Zieminska
- Department of Neurochemistry, Mossakowski Medical Research Centre, Polish Academy of Sciences, Warsaw, Poland.
| | - Anna Ruszczynska
- University of Warsaw, Faculty of Chemistry, Biological and Chemical Research Centre, Warsaw, Poland
| | - Jerzy W Lazarewicz
- Department of Neurochemistry, Mossakowski Medical Research Centre, Polish Academy of Sciences, Warsaw, Poland
| |
Collapse
|
12
|
Jabrani A, Makamte S, Moreau E, Gharbi Y, Plessis A, Bruzzone L, Sanial M, Biou V. Biophysical characterisation of the novel zinc binding property in Suppressor of Fused. Sci Rep 2017; 7:11139. [PMID: 28894158 PMCID: PMC5593987 DOI: 10.1038/s41598-017-11203-2] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2017] [Accepted: 08/21/2017] [Indexed: 01/09/2023] Open
Abstract
Suppressor of Fused (SUFU) is a highly conserved protein that acts as a negative regulator of the Hedgehog (HH) signalling pathway, a major determinant of cell differentiation and proliferation. Therefore, SUFU deletion in mammals has devastating effects on embryo development. SUFU is part of a multi-protein cytoplasmic signal-transducing complex. Its partners include the Gli family of transcription factors that function either as repressors, or as transcription activators according to the HH activation state. The crystal structure of SUFU revealed a two-domain arrangement, which undergoes a closing movement upon binding a peptide from Gli1. There remains however, much to be discovered about SUFU’s behaviour. To this end, we expressed recombinant, full-length SUFU from Drosophila, Zebrafish and Human. Guided by a sequence analysis that revealed a conserved potential metal binding site, we discovered that SUFU binds zinc. This binding was found to occur with a nanomolar affinity to SUFU from all three species. Mutation of one histidine from the conserved motif induces a moderate decrease in affinity for zinc, while circular dichroism indicates that the mutant remains structured. Our results reveal new metal binding affinity characteristics about SUFU that could be of importance for its regulatory function in HH.
Collapse
Affiliation(s)
- Amira Jabrani
- Laboratoire de Biologie Physico-Chimique des Protéines Membranaires, UMR 7099 CNRS, Université Paris Diderot, Sorbonne Paris Cité, PSL Research University, Institut de Biologie Physico-Chimique, 13 rue Pierre et Marie Curie, 75005, Paris, France
| | - Staëlle Makamte
- Laboratoire de Biologie Physico-Chimique des Protéines Membranaires, UMR 7099 CNRS, Université Paris Diderot, Sorbonne Paris Cité, PSL Research University, Institut de Biologie Physico-Chimique, 13 rue Pierre et Marie Curie, 75005, Paris, France
| | - Emilie Moreau
- Laboratoire de Biologie Physico-Chimique des Protéines Membranaires, UMR 7099 CNRS, Université Paris Diderot, Sorbonne Paris Cité, PSL Research University, Institut de Biologie Physico-Chimique, 13 rue Pierre et Marie Curie, 75005, Paris, France
| | - Yasmine Gharbi
- Laboratoire de Biologie Physico-Chimique des Protéines Membranaires, UMR 7099 CNRS, Université Paris Diderot, Sorbonne Paris Cité, PSL Research University, Institut de Biologie Physico-Chimique, 13 rue Pierre et Marie Curie, 75005, Paris, France
| | - Anne Plessis
- Institut Jacques Monod UMR 7592, CNRS, Université Paris Diderot, Sorbonne Paris Cité, F-75205, Paris, France
| | - Lucia Bruzzone
- Institut Jacques Monod UMR 7592, CNRS, Université Paris Diderot, Sorbonne Paris Cité, F-75205, Paris, France
| | - Matthieu Sanial
- Institut Jacques Monod UMR 7592, CNRS, Université Paris Diderot, Sorbonne Paris Cité, F-75205, Paris, France
| | - Valérie Biou
- Laboratoire de Biologie Physico-Chimique des Protéines Membranaires, UMR 7099 CNRS, Université Paris Diderot, Sorbonne Paris Cité, PSL Research University, Institut de Biologie Physico-Chimique, 13 rue Pierre et Marie Curie, 75005, Paris, France.
| |
Collapse
|
13
|
Supplementation with zinc in rats enhances memory and reverses an age-dependent increase in plasma copper. Behav Brain Res 2017; 333:179-183. [PMID: 28693861 DOI: 10.1016/j.bbr.2017.07.007] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2017] [Revised: 07/03/2017] [Accepted: 07/06/2017] [Indexed: 12/26/2022]
Abstract
Zinc and copper are essential trace elements. Dyshomeostasis in these two metals has been observed in Alzheimer's disease, which causes profound cognitive impairment. Insulin therapy has been shown to enhance cognitive performance; however, recent data suggest that this effect may be at least in part due to the inclusion of zinc in the insulin formulation used. Zinc plays a key role in regulation of neuronal glutamate signaling, suggesting a possible link between zinc and memory processes. Consistent with this, zinc deficiency causes cognitive impairments in children. The effect of zinc supplementation on short- and long-term recognition memory, and on spatial working memory, was explored in young and adult male Sprague Dawley rats. After behavioral testing, hippocampal and plasma zinc and copper were measured. Age increased hippocampal zinc and copper, as well as plasma copper, and decreased plasma zinc. An interaction between age and treatment affecting plasma copper was also found, with zinc supplementation reversing elevated plasma copper concentration in adult rats. Zinc supplementation enhanced cognitive performance across tasks. These data support zinc as a plausible therapeutic intervention to ameliorate cognitive impairment in disorders characterized by alterations in zinc and copper, such as Alzheimer's disease.
Collapse
|
14
|
Wang P, Wang ZY. Metal ions influx is a double edged sword for the pathogenesis of Alzheimer's disease. Ageing Res Rev 2017; 35:265-290. [PMID: 27829171 DOI: 10.1016/j.arr.2016.10.003] [Citation(s) in RCA: 69] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2016] [Revised: 09/08/2016] [Accepted: 10/17/2016] [Indexed: 12/17/2022]
Abstract
Alzheimer's disease (AD) is a common form of dementia in aged people, which is defined by two pathological characteristics: β-amyloid protein (Aβ) deposition and tau hyperphosphorylation. Although the mechanisms of AD development are still being debated, a series of evidence supports the idea that metals, such as copper, iron, zinc, magnesium and aluminium, are involved in the pathogenesis of the disease. In particular, the processes of Aβ deposition in senile plaques (SP) and the inclusion of phosphorylated tau in neurofibrillary tangles (NFTs) are markedly influenced by alterations in the homeostasis of the aforementioned metal ions. Moreover, the mechanisms of oxidative stress, synaptic plasticity, neurotoxicity, autophagy and apoptosis mediate the effects of metal ions-induced the aggregation state of Aβ and phosphorylated tau on AD development. More importantly, imbalance of these mechanisms finally caused cognitive decline in different experiment models. Collectively, reconstructing the signaling network that regulates AD progression by metal ions may provide novel insights for developing chelators specific for metal ions to combat AD.
Collapse
Affiliation(s)
- Pu Wang
- College of Life and Health Sciences, Northeastern University, No. 3-11, Wenhua Road, Shenyang, 110819, PR China.
| | - Zhan-You Wang
- College of Life and Health Sciences, Northeastern University, No. 3-11, Wenhua Road, Shenyang, 110819, PR China.
| |
Collapse
|
15
|
Tamano H, Nishio R, Takeda A. Involvement of intracellular Zn 2+ signaling in LTP at perforant pathway-CA1 pyramidal cell synapse. Hippocampus 2017; 27:777-783. [PMID: 28380662 DOI: 10.1002/hipo.22730] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2017] [Revised: 03/28/2017] [Accepted: 03/29/2017] [Indexed: 11/06/2022]
Abstract
Physiological significance of synaptic Zn2+ signaling was examined at perforant pathway-CA1 pyramidal cell synapses. In vivo long-term potentiation (LTP) at perforant pathway-CA1 pyramidal cell synapses was induced using a recording electrode attached to a microdialysis probe and the recording region was locally perfused with artificial cerebrospinal fluid (ACSF) via the microdialysis probe. Perforant pathway LTP was not attenuated under perfusion with CaEDTA (10 mM), an extracellular Zn2+ chelator, but attenuated under perfusion with ZnAF-2DA (50 μM), an intracellular Zn2+ chelator, suggesting that intracellular Zn2+ signaling is required for perforant pathway LTP. Even in rat brain slices bathed in CaEDTA in ACSF, intracellular Zn2+ level, which was measured with intracellular ZnAF-2, was increased in the stratum lacunosum-moleculare where perforant pathway-CA1 pyramidal cell synapses were contained after tetanic stimulation. These results suggest that intracellular Zn2+ signaling, which originates in internal stores/proteins, is involved in LTP at perforant pathway-CA1 pyramidal cell synapses. Because the influx of extracellular Zn2+ , which originates in presynaptic Zn2+ release, is involved in LTP at Schaffer collateral-CA1 pyramidal cell synapses, synapse-dependent Zn2+ dynamics may be involved in plasticity of postsynaptic CA1 pyramidal cells.
Collapse
Affiliation(s)
- Haruna Tamano
- Department of Neurophysiology, School of Pharmaceutical Sciences, University of Shizuoka, 52-1 Yada, Suruga-ku, Shizuoka, 422-8526, Japan
| | - Ryusuke Nishio
- Department of Neurophysiology, School of Pharmaceutical Sciences, University of Shizuoka, 52-1 Yada, Suruga-ku, Shizuoka, 422-8526, Japan
| | - Atsushi Takeda
- Department of Neurophysiology, School of Pharmaceutical Sciences, University of Shizuoka, 52-1 Yada, Suruga-ku, Shizuoka, 422-8526, Japan
| |
Collapse
|
16
|
Borglin J, Selegård R, Aili D, Ericson MB. Peptide Functionalized Gold Nanoparticles as a Stimuli Responsive Contrast Medium in Multiphoton Microscopy. NANO LETTERS 2017; 17:2102-2108. [PMID: 28215085 DOI: 10.1021/acs.nanolett.7b00611] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
There is a need for biochemical contrast mediators with high signal-to-noise ratios enabling noninvasive biomedical sensing, for example, for neural sensing and protein-protein interactions, in addition to cancer diagnostics. The translational challenge is to develop a biocompatible approach ensuring high biochemical contrast while avoiding a raise of the background signal. We here present a concept where gold nanoparticles (AuNPs) can be utilized as a stimuli responsive contrast medium by chemically triggering their ability to exhibit multiphoton-induced luminescence (MIL) when performing multiphoton laser scanning microscopy (MPM). Proof-of-principle is demonstrated using peptide-functionalized AuNPs sensitive to zinc ions (Zn2+). Dispersed particles are invisible in the MPM until addition of millimolar concentrations of Zn2+ upon which MIL is enabled through particle aggregation caused by specific peptide interactions and folding. The process can be reversed by removal of the Zn2+ using a chelator, thereby resuspending the AuNPs. In addition, the concept was demonstrated by exposing the particles to matrix metalloproteinase-7 (MMP-7) causing peptide digestion resulting in AuNP aggregation, significantly elevating the MIL signal from the background. The approach is based on the principle that aggregation shifts the plasmon resonance, elevating the absorption cross section in the near-infrared wavelength region enabling onset of MIL. This Letter demonstrates how biochemical sensing can be obtained in far-field MPM and should be further exploited as a future tool for noninvasive optical biosensing.
Collapse
Affiliation(s)
- Johan Borglin
- Biomedical Photonics Group, Department of Chemistry and Molecular biology, University of Gothenburg , 412 96 Gothenburg, Sweden
| | - Robert Selegård
- Division of Molecular Physics, Department of Physics, Chemistry, and Biology (IFM), Linköping University , 581 83 Linköping, Sweden
| | - Daniel Aili
- Division of Molecular Physics, Department of Physics, Chemistry, and Biology (IFM), Linköping University , 581 83 Linköping, Sweden
| | - Marica B Ericson
- Biomedical Photonics Group, Department of Chemistry and Molecular biology, University of Gothenburg , 412 96 Gothenburg, Sweden
| |
Collapse
|
17
|
Mizuno D, Kawahara M. Link Between Metal Homeostasis and Neurodegenerative Diseases: Crosstalk of Metals and Amyloidogenic Proteins at the Synapse. Metallomics 2017. [DOI: 10.1007/978-4-431-56463-8_14] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/26/2023]
|
18
|
Tanaka KI, Kawahara M. Copper Enhances Zinc-Induced Neurotoxicity and the Endoplasmic Reticulum Stress Response in a Neuronal Model of Vascular Dementia. Front Neurosci 2017; 11:58. [PMID: 28232787 PMCID: PMC5299027 DOI: 10.3389/fnins.2017.00058] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2016] [Accepted: 01/26/2017] [Indexed: 11/13/2022] Open
Abstract
Zinc (Zn), an essential trace element, is secreted by synaptic vesicles during neuronal excitation and plays several critical roles in neuronal information processing. However, excess Zn ion (Zn2+) is neurotoxic and has a causative role in the pathogenesis of vascular dementia. Here, we investigated the molecular mechanism of Zn2+-induced neurotoxicity by using immortalized hypothalamic neurons (GT1-7 cells), which are more vulnerable than other neuronal cells to Zn2+. We examined the effects of other metal ions on the Zn2+-induced neurotoxicity in these cells and found that sub-lethal concentrations of copper ion (Cu2+) markedly exacerbated Zn2+-induced neurotoxicity. The co-administration of Cu2+ and Zn2+ also significantly increased the expression of genes related to the endoplasmic reticulum's stress response, including CHOP, GADD34, and ATF4. Similar to Zn2+, Cu2+ is stored in presynaptic vesicles and secreted during neuronal excitation. Thus, based on our results, we hypothesize here that Cu2+ interacts with Zn2+ in the synapse to synergistically promote neuronal death and significantly influence the pathogenesis of vascular dementia.
Collapse
Affiliation(s)
- Ken-Ichiro Tanaka
- Department of Bio Analytical Chemistry, Musashino University Nishitokyo-shi, Japan
| | - Masahiro Kawahara
- Department of Bio Analytical Chemistry, Musashino University Nishitokyo-shi, Japan
| |
Collapse
|
19
|
Takeda A, Tamano H. New Insight into Metallomics in Cognition. Metallomics 2017. [DOI: 10.1007/978-4-431-56463-8_15] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
|
20
|
Tamano H, Koike Y, Nakada H, Shakushi Y, Takeda A. Significance of synaptic Zn 2+ signaling in zincergic and non-zincergic synapses in the hippocampus in cognition. J Trace Elem Med Biol 2016; 38:93-98. [PMID: 26995290 DOI: 10.1016/j.jtemb.2016.03.003] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/15/2016] [Revised: 03/07/2016] [Accepted: 03/07/2016] [Indexed: 11/24/2022]
Abstract
A portion of zinc concentrates in the synaptic vesicles in the brain and is released from glutamatergic (zincergic) neuron terminals. It serves as a signaling factor (in a form of free Zn2+). Both extracellular Zn2+ signaling, which predominantly originates in Zn2+ release from zincergic neuron terminals, and intracellular Zn2+ signaling, which is often linked to extracellular Zn2+ signaling, are involved in hippocampus-dependent memory. At mossy fiber-CA3 pyramidal cell synapses and Schaffer collateral-CA1 pyramidal cell synapses, which are zincergic, extracellular Zn2+ signaling leads to intracellular Zn2+ signaling and is involved in learning and memory. At medial perforant pathway-dentate granule cell synapses, which are non-zincergic, intracellular Zn2+ signaling, which originates in the internal stores containing Zn2+, is involved in learning and memory. The blockade of Zn2+ signaling with Zn2+ chelators induces memory deficit, while the optimal amount range of Zn2+ signaling is unknown. It is possible that the degree and frequency of Zn2+ signaling, which determine the increased Zn2+ levels, modulates learning and memory as well as intracellular Ca2+ signaling. To understand the precise role of synaptic Zn2+ signaling in the hippocampus, the present paper summarizes the current knowledge on Zn2+ signaling at zincergic and non-zincergic synapses in the hippocampus in cognition and involvement of zinc transporters and zinc-binding proteins in synaptic Zn2+ signaling.
Collapse
Affiliation(s)
- Hanuna Tamano
- Department of Neurophysiology, School of Pharmaceutical Sciences, University of Shizuoka, 52-1 Yada, Suruga-ku, Shizuoka 422-8526, Japan
| | - Yuta Koike
- Department of Neurophysiology, School of Pharmaceutical Sciences, University of Shizuoka, 52-1 Yada, Suruga-ku, Shizuoka 422-8526, Japan
| | - Hiroyuki Nakada
- Department of Neurophysiology, School of Pharmaceutical Sciences, University of Shizuoka, 52-1 Yada, Suruga-ku, Shizuoka 422-8526, Japan
| | - Yukina Shakushi
- Department of Neurophysiology, School of Pharmaceutical Sciences, University of Shizuoka, 52-1 Yada, Suruga-ku, Shizuoka 422-8526, Japan
| | - Atsushi Takeda
- Department of Neurophysiology, School of Pharmaceutical Sciences, University of Shizuoka, 52-1 Yada, Suruga-ku, Shizuoka 422-8526, Japan.
| |
Collapse
|
21
|
Zinc and zinc-containing biomolecules in childhood brain tumors. J Mol Med (Berl) 2016; 94:1199-1215. [PMID: 27638340 DOI: 10.1007/s00109-016-1454-8] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2016] [Revised: 07/13/2016] [Accepted: 07/27/2016] [Indexed: 12/21/2022]
Abstract
Zinc ions are essential cofactors of a wide range of enzymes, transcription factors, and other regulatory proteins. Moreover, zinc is also involved in cellular signaling and enzymes inhibition. Zinc dysregulation, deficiency, over-supply, and imbalance in zinc ion transporters regulation are connected with various diseases including cancer. A zinc ion pool is maintained by two types of proteins: (i) zinc-binding proteins, which act as a buffer and intracellular donors of zinc and (ii) zinc transporters responsible for zinc fluxes into/from cells and organelles. The decreased serum zinc ion levels have been identified in patients suffering from various cancer diseases, including head and neck tumors and breast, prostate, liver, and lung cancer. On the contrary, increased zinc ion levels have been found in breast cancer and other malignant tissues. Zinc metalloproteomes of a majority of tumors including brain ones are still not yet fully understood. Current knowledge show that zinc ion levels and detection of certain zinc-containing proteins may be utilized for diagnostic and prognostic purposes. In addition, these proteins can also be promising therapeutic targets. The aim of the present work is an overview of the importance of zinc ions, zinc transporters, and zinc-containing proteins in brain tumors, which are, after leukemia, the second most common type of childhood cancer and the second leading cause of death in children after accidents.
Collapse
|
22
|
Anderson KL, Frazier HN, Maimaiti S, Bakshi VV, Majeed ZR, Brewer LD, Porter NM, Lin AL, Thibault O. Impact of Single or Repeated Dose Intranasal Zinc-free Insulin in Young and Aged F344 Rats on Cognition, Signaling, and Brain Metabolism. J Gerontol A Biol Sci Med Sci 2016; 72:189-197. [PMID: 27069097 DOI: 10.1093/gerona/glw065] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2016] [Accepted: 03/19/2016] [Indexed: 01/13/2023] Open
Abstract
Novel therapies have turned to delivering compounds to the brain using nasal sprays, bypassing the blood brain barrier, and enriching treatment options for brain aging and/or Alzheimer's disease. We conducted a series of in vivo experiments to test the impact of intranasal Apidra, a zinc-free insulin formulation, on the brain of young and aged F344 rats. Both single acute and repeated daily doses were compared to test the hypothesis that insulin could improve memory recall in aged memory-deficient animals. We quantified insulin signaling in different brain regions and at different times following delivery. We measured cerebral blood flow (CBF) using MRI and also characterized several brain metabolite levels using MR spectroscopy. We show that neither acute nor chronic Apidra improved memory or recall in young or aged animals. Within 2 hours of a single dose, increased insulin signaling was seen in ventral areas of the aged brains only. Although chronic Apidra was able to offset reduced CBF with aging, it also caused significant reductions in markers of neuronal integrity. Our data suggest that this zinc-free insulin formulation may actually hasten cognitive decline with age when used chronically.
Collapse
Affiliation(s)
| | | | | | | | - Zana R Majeed
- The School of Biology, University of Kentucky, Lexington
| | | | | | | | | |
Collapse
|
23
|
Adam P, Křížková S, Heger Z, Babula P, Pekařík V, Vaculovičoá M, Gomes CM, Kizek R, Adam V. Metallothioneins in Prion- and Amyloid-Related Diseases. J Alzheimers Dis 2016; 51:637-56. [DOI: 10.3233/jad-150984] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Pavlína Adam
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska 1, Brno, Czech Republic
- Central European Institute of Technology, Brno University of Technology, Technicka, Brno, Czech Republic
| | - Soňa Křížková
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska 1, Brno, Czech Republic
- Central European Institute of Technology, Brno University of Technology, Technicka, Brno, Czech Republic
| | - Zbyněk Heger
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska 1, Brno, Czech Republic
- Central European Institute of Technology, Brno University of Technology, Technicka, Brno, Czech Republic
| | - Petr Babula
- Department of Physiology, Faculty of Medicine, Masaryk University, Kamenice, Brno, Czech Republic
| | - Vladimír Pekařík
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska 1, Brno, Czech Republic
- Central European Institute of Technology, Brno University of Technology, Technicka, Brno, Czech Republic
| | - Markéta Vaculovičoá
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska 1, Brno, Czech Republic
- Central European Institute of Technology, Brno University of Technology, Technicka, Brno, Czech Republic
| | - Cláudio M. Gomes
- Faculdade de Ciências Universidade de Lisboa, Biosystems and Integrative Sciences Institute and Department of Chemistry and Biochemistry, Universidade de Lisboa, Campo Grande, Lisboa, Portugal
| | - René Kizek
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska 1, Brno, Czech Republic
- Central European Institute of Technology, Brno University of Technology, Technicka, Brno, Czech Republic
| | - Vojtěch Adam
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska 1, Brno, Czech Republic
- Central European Institute of Technology, Brno University of Technology, Technicka, Brno, Czech Republic
| |
Collapse
|
24
|
Takeda A, Tamano H. Significance of Low Nanomolar Concentration of Zn2+ in Artificial Cerebrospinal Fluid. Mol Neurobiol 2016; 54:2477-2482. [DOI: 10.1007/s12035-016-9816-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2015] [Accepted: 02/23/2016] [Indexed: 01/03/2023]
|
25
|
Takeda A, Tamano H. Significance of the degree of synaptic Zn2+ signaling in cognition. Biometals 2015; 29:177-85. [DOI: 10.1007/s10534-015-9907-z] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2015] [Accepted: 12/17/2015] [Indexed: 11/24/2022]
|
26
|
Takeda A, Shakushi Y, Tamano H. Modification of hippocampal excitability in brain slices pretreated with a low nanomolar concentration of Zn2+. J Neurosci Res 2015; 93:1641-7. [DOI: 10.1002/jnr.23629] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2015] [Revised: 07/24/2015] [Accepted: 07/24/2015] [Indexed: 11/06/2022]
Affiliation(s)
- Atsushi Takeda
- Department of Neurophysiology; School of Pharmaceutical Sciences, University of Shizuoka; Shizuoka Japan
| | - Yukina Shakushi
- Department of Neurophysiology; School of Pharmaceutical Sciences, University of Shizuoka; Shizuoka Japan
| | - Haruna Tamano
- Department of Neurophysiology; School of Pharmaceutical Sciences, University of Shizuoka; Shizuoka Japan
| |
Collapse
|
27
|
Takeda A, Suzuki M, Tempaku M, Ohashi K, Tamano H. Influx of extracellular Zn(2+) into the hippocampal CA1 neurons is required for cognitive performance via long-term potentiation. Neuroscience 2015. [PMID: 26204819 DOI: 10.1016/j.neuroscience.2015.07.042] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
Physiological significance of synaptic Zn(2+) signaling was examined in the CA1 of young rats. In vivo CA1 long-term potentiation (LTP) was induced using a recording electrode attached to a microdialysis probe and the recording region was locally perfused with artificial cerebrospinal fluid (ACSF) via the microdialysis probe. In vivo CA1 LTP was inhibited under perfusion with CaEDTA and ZnAF-2DA, extracellular and intracellular Zn(2+) chelators, respectively, suggesting that the influx of extracellular Zn(2+) is required for in vivo CA1 LTP induction. The increase in intracellular Zn(2+) was chelated with intracellular ZnAF-2 in the CA1 1h after local injection of ZnAF-2DA into the CA1, suggesting that intracellular Zn(2+) signaling induced during learning is blocked with intracellular ZnAF-2 when the learning was performed 1h after ZnAF-2DA injection. Object recognition was affected when training of object recognition test was performed 1h after ZnAF-2DA injection. These data suggest that intracellular Zn(2+) signaling in the CA1 is required for object recognition memory via LTP. Surprisingly, in vivo CA1 LTP was affected under perfusion with 0.1-1μM ZnCl2, unlike the previous data that in vitro CA1 LTP was enhanced in the presence of 1-5μM ZnCl2. The influx of extracellular Zn(2+) into CA1 pyramidal cells has bidirectional action in CA1 LTP. The present study indicates that the degree of extracellular Zn(2+) influx into CA1 neurons is critical for LTP and cognitive performance.
Collapse
Affiliation(s)
- A Takeda
- Department of Neurophysiology, School of Pharmaceutical Sciences, University of Shizuoka, 52-1 Yada, Suruga-ku, Shizuoka 422-8526, Japan.
| | - M Suzuki
- Department of Neurophysiology, School of Pharmaceutical Sciences, University of Shizuoka, 52-1 Yada, Suruga-ku, Shizuoka 422-8526, Japan
| | - M Tempaku
- Department of Neurophysiology, School of Pharmaceutical Sciences, University of Shizuoka, 52-1 Yada, Suruga-ku, Shizuoka 422-8526, Japan
| | - K Ohashi
- Department of Neurophysiology, School of Pharmaceutical Sciences, University of Shizuoka, 52-1 Yada, Suruga-ku, Shizuoka 422-8526, Japan
| | - H Tamano
- Department of Neurophysiology, School of Pharmaceutical Sciences, University of Shizuoka, 52-1 Yada, Suruga-ku, Shizuoka 422-8526, Japan
| |
Collapse
|
28
|
Wang WM, Liu Z, Liu AJ, Wang YX, Wang HG, An D, Heng B, Xie LH, Duan JL, Liu YQ. The Zinc Ion Chelating Agent TPEN Attenuates Neuronal Death/apoptosis Caused by Hypoxia/ischemia Via Mediating the Pathophysiological Cascade Including Excitotoxicity, Oxidative Stress, and Inflammation. CNS Neurosci Ther 2015; 21:708-17. [PMID: 26190227 DOI: 10.1111/cns.12428] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2015] [Revised: 06/02/2015] [Accepted: 06/03/2015] [Indexed: 12/14/2022] Open
Abstract
AIMS We aim to determine the significant effect of TPEN, a Zn(2+) chelator, in mediating the pathophysiological cascade in neuron death/apoptosis induced by hypoxia/ischemia. METHODS We conducted both in vivo and in vitro experiments in this study. PC12 cells were used to establish hypoxia/ischemia model by applying oxygen-glucose deprivation (OGD). SHR-SP rats were used to establish an acute ischemic model by electrocoagulating middle cerebral artery occlusion. The effect of TPEN on neuron death/apoptosis was evaluated. In addition, the relative biomarks of excitotoxicity, oxidative stress, and inflammation reactions in hypoxia/ischemia PC12 cell model as well as in SHR-SP rat hypoxia/ischemia model were also assessed. RESULTS TPEN significantly attenuates the neurological deficit, reduced the cerebral infarction area and the ratio of apoptotic neurons, and increased the expression of GluR2 in the rat hypoxia/ischemia brain. TPEN also increased blood SOD activity, decreased blood NOS activity and blood MDA and IL-6 contents in rats under hypoxia/ischemia. In addition, TPEN significantly inhibited the death and apoptosis of cells and attenuated the alteration of GluR2 and NR2 expression caused by OGD or OGD plus high Zn(2+) treatments. CONCLUSIONS Zn(2+) is involved in neural cell apoptosis and/or death caused by hypoxia/ischemia via mediating excitotoxicity, oxidative stress, and inflammation.
Collapse
Affiliation(s)
- Wei-Ming Wang
- College of Life Sciences, Nankai University, Tianjin, China.,Department of Pharmacology, Second Military Medical University, Shanghai, China
| | - Zhao Liu
- College of Life Sciences, Nankai University, Tianjin, China
| | - Ai-Jun Liu
- Department of Pharmacology, Second Military Medical University, Shanghai, China
| | - Yu-Xiang Wang
- College of Life Sciences, Nankai University, Tianjin, China
| | - Hong-Gang Wang
- College of Life Sciences, Nankai University, Tianjin, China
| | - Di An
- College of Life Sciences, Nankai University, Tianjin, China
| | - Bin Heng
- College of Life Sciences, Nankai University, Tianjin, China
| | - Lai-Hua Xie
- Department of Cell Biology and Molecular Medicine, New Jersey Medical School, Rutgers, The State University of New Jersey, New Brunswick, NJ, USA
| | - Jun-Li Duan
- Department of Gerontology, Xin Hua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yan-Qiang Liu
- College of Life Sciences, Nankai University, Tianjin, China
| |
Collapse
|
29
|
Prakash A, Bharti K, Majeed ABA. Zinc: indications in brain disorders. Fundam Clin Pharmacol 2015; 29:131-49. [PMID: 25659970 DOI: 10.1111/fcp.12110] [Citation(s) in RCA: 73] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2014] [Revised: 07/08/2014] [Accepted: 12/24/2014] [Indexed: 12/14/2022]
Abstract
Zinc is the authoritative metal which is present in our body, and reactive zinc metal is crucial for neuronal signaling and is largely distributed within presynaptic vesicles. Zinc also plays an important role in synaptic function. At cellular level, zinc is a modulator of synaptic activity and neuronal plasticity in both development and adulthood. Different importers and transporters are involved in zinc homeostasis. ZnT-3 is a main transporter involved in zinc homeostasis in the brain. It has been found that alterations in brain zinc status have been implicated in a wide range of neurological disorders including impaired brain development and many neurodegenerative disorders such as Alzheimer's disease, and mood disorders including depression, Parkinson's disease, Huntington's disease, amyotrophic lateral sclerosis, and prion disease. Furthermore, zinc has also been implicated in neuronal damage associated with traumatic brain injury, stroke, and seizure. Understanding the mechanisms that control brain zinc homeostasis is thus critical to the development of preventive and treatment strategies for these and other neurological disorders.
Collapse
Affiliation(s)
- Atish Prakash
- Brain Degeneration and Therapeutics Group, Brain and Neuroscience Communities of Research, Universiti Teknologi MARA (UiTM), Shah Alam, 40450, Malaysia; Department of Pharmacology, ISF college of Pharmacy, Ghal kalan, Moga, 142-001, India; Brain Research Laboratory, Faculty of Pharmacy, Campus Puncak Alam, Universiti Teknologi MARA (UiTM), Bandar Puncak Alam, 42300, Malaysia
| | | | | |
Collapse
|
30
|
Marger L, Schubert C, Bertrand D. Zinc: An underappreciated modulatory factor of brain function. Biochem Pharmacol 2014; 91:426-35. [DOI: 10.1016/j.bcp.2014.08.002] [Citation(s) in RCA: 75] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2014] [Revised: 07/30/2014] [Accepted: 08/08/2014] [Indexed: 02/05/2023]
|