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Ballestín R, Torres J, Ponsoda X. TSQ Incubation Enhances Autometallographic Zinc Detection in Cultured Astrocytes. MICROSCOPY AND MICROANALYSIS : THE OFFICIAL JOURNAL OF MICROSCOPY SOCIETY OF AMERICA, MICROBEAM ANALYSIS SOCIETY, MICROSCOPICAL SOCIETY OF CANADA 2024:ozae060. [PMID: 39027929 DOI: 10.1093/mam/ozae060] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/27/2023] [Revised: 04/01/2024] [Accepted: 06/18/2024] [Indexed: 07/20/2024]
Abstract
Zinc is a critical ion for a large number of cellular functions. In the central nervous system, zinc ions are involved in synaptic transmission. Therefore, zinc homeostasis is essential, and cells have developed a variety of mechanisms to control cellular zinc concentration, including the zincosome formation. Alterations of free zinc levels have been associated with brain dysfunction and are present in many illnesses and syndromes. Astrocytes are implicated in the maintenance of the neuronal milleu and brain homeostasis. In this work, we have analyzed the combination of direct (TSQ) and indirect (autometallography) zinc detection methods to increase sensitivity for studying zinc uptake by rat astrocytes in vitro. Zincosome formation was visualized with the zinc fluorochrome TSQ by light microscopy. Additionally, we improved both zinc precipitation and cellular fixation methods to preserve zinc ions and make them suitable for autometallography development. Our tests pinpointed paraformaldehyde and sodium sulfide as the more adequate methods for cellular fixation and zinc precipitation, respectively. TSQ incubation and pH of the fixative were shown to be crucial for autometallography. Using this improved method, we visualized the zinc content of zincosomes at the ultrastructural level both as silver autometallographic precipitates and as electrodense sulfide-osmium zinc precipitates.
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Affiliation(s)
- Raúl Ballestín
- Departamento Biología Celular, Biología Funcional y Antropología Física, Universitat de València, 46100 Burjassot, Valencia, Spain
| | - Josema Torres
- Departamento Biología Celular, Biología Funcional y Antropología Física, Universitat de València, 46100 Burjassot, Valencia, Spain
| | - Xavier Ponsoda
- Departamento Biología Celular, Biología Funcional y Antropología Física, Universitat de València, 46100 Burjassot, Valencia, Spain
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2
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Sneyers F, Speelman-Rooms F, Verhelst SHL, Bootman MD, Bultynck G. Cellular effects of BAPTA: Are they only about Ca 2+ chelation? BIOCHIMICA ET BIOPHYSICA ACTA. MOLECULAR CELL RESEARCH 2024; 1871:119589. [PMID: 37739271 DOI: 10.1016/j.bbamcr.2023.119589] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/28/2023] [Revised: 09/06/2023] [Accepted: 09/10/2023] [Indexed: 09/24/2023]
Abstract
Intracellular Ca2+ signals play a vital role in a broad range of cell biological and physiological processes in all eukaryotic cell types. Dysregulation of Ca2+ signaling has been implicated in numerous human diseases. Over the past four decades, the understanding of how cells use Ca2+ as a messenger has flourished, largely because of the development of reporters that enable visualization of Ca2+ signals in different cellular compartments, and tools that can modulate cellular Ca2+ signaling. One such tool that is frequently used is BAPTA; a fast, high-affinity Ca2+-chelating molecule. By making use of a cell-permeable acetoxymethyl ester (AM) variant, BAPTA can be readily loaded into the cytosol of cells (referred to as BAPTAi), where it is trapped and able to buffer changes in cytosolic Ca2+. Due to the ease of loading of the AM version of BAPTA, this reagent has been used in hundreds of studies to probe the role of Ca2+ signaling in specific processes. As such, for decades, researchers have almost universally attributed changes in biological processes caused by BAPTAi to the involvement of Ca2+ signaling. However, BAPTAi has often been used without any form of control, and in many cases has neither been shown to be retained in cells for the duration of experiments nor to buffer any Ca2+ signals. Moreover, increasing evidence points to off-target cellular effects of BAPTA that are clearly not related to Ca2+ chelation. Here, we briefly introduce Ca2+ signaling and the history of Ca2+ chelators and fluorescent Ca2+ indicators. We highlight Ca2+-independent effects of BAPTAi on a broad range of molecular targets and describe some of BAPTAi's impacts on cell functions that occur independently of its Ca2+-chelating properties. Finally, we propose strategies for determining whether Ca2+ chelation, the binding of other metal ions, or off-target interactions with cell components are responsible for BAPTAi's effect on a particular process and suggest some future research directions.
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Affiliation(s)
- Flore Sneyers
- KU Leuven, Lab. Molecular & Cellular Signaling, Dep. Cellular & Molecular Medicine, Campus Gasthuisberg O/N-I bus 802, Herestraat 49, B-3000 Leuven, Belgium
| | - Femke Speelman-Rooms
- KU Leuven, Lab. Molecular & Cellular Signaling, Dep. Cellular & Molecular Medicine, Campus Gasthuisberg O/N-I bus 802, Herestraat 49, B-3000 Leuven, Belgium; KU Leuven, Department of Cellular and Molecular Medicine, Laboratory of Chemical Biology, Herestraat 49 box 901b, B-3000 Leuven, Belgium
| | - Steven H L Verhelst
- KU Leuven, Department of Cellular and Molecular Medicine, Laboratory of Chemical Biology, Herestraat 49 box 901b, B-3000 Leuven, Belgium
| | - Martin D Bootman
- The Open University, Cancer Research Group, School of Life, Health and Chemical Sciences, Milton Keynes, UK
| | - Geert Bultynck
- KU Leuven, Lab. Molecular & Cellular Signaling, Dep. Cellular & Molecular Medicine, Campus Gasthuisberg O/N-I bus 802, Herestraat 49, B-3000 Leuven, Belgium.
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3
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Zhang Z, Hui Y, Yang W, Guo G, Cui B, Li C, Wang X, Fan X, Sun C. Association between serum trace elements and sleep disturbance in patients with decompensated cirrhosis. Ther Adv Chronic Dis 2023; 14:20406223231192829. [PMID: 37601039 PMCID: PMC10439724 DOI: 10.1177/20406223231192829] [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: 02/03/2023] [Accepted: 07/17/2023] [Indexed: 08/22/2023] Open
Abstract
Background Sleep disturbance and trace elements imbalance are common features in patients with decompensated cirrhosis, partially sharing similar mechanistic contributors and linking to adverse outcomes. However, there is a paucity of data concerning their relationship. Objectives To investigate the association between serum trace elements levels and sleep quality in the context of cirrhosis. Design Cross-sectional study. Methods We consecutively enrolled 160 patients with decompensated cirrhosis. The sleep disturbance was determined by the Pittsburgh Sleep Quality Index (PSQI > 5). Serum trace elements [magnesium, calcium, iron, copper (Cu), zinc (Zn), lead, and manganese] was measured by inductively coupled plasma mass spectrometry. Association of examined trace elements levels and sleep disturbance was analyzed by multiple linear (global PSQI scores) and multivariate logistic (dichotomized PSQI categories) regression models, respectively. Results In total, 91 patients (56.88%) represented PSQI-defined sleep disturbance, characterized by female preponderance, lower body mass index levels, and higher serum Cu levels (all p < 0.05). Looking into its clinical relevance with debilitating conditions, we showed that Cu/Zn ratio (CZr) is significantly higher in cirrhosis with poor sleep quality (1.77 versus 1.48, p = 0.003). Diagnostic performance analysis indicated CZr > 1.62 to exhibit better discrimination relative to respective Cu. Both multiple linear (β = 0.355, p < 0.001) and multivariate logistic regression (odds ratio = 2.364, p = 0.019) identified higher CZr as an independent risk factor associated with sleep disturbance. Conclusion Our findings implied an association between higher CZr and the presence of sleep disturbance in patients with decompensated cirrhosis.
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Affiliation(s)
- Ziyue Zhang
- Department of Otorhinolaryngology Head and Neck Surgery, Tianjin First Central Hospital, Nankai District, Tianjin, China
- Institute of Otolaryngology of Tianjin, China
| | - Yangyang Hui
- Department of Gastroenterology and Hepatology, Tianjin Medical University General Hospital, Heping District, Tianjin, China
| | - Wanting Yang
- Department of Gastroenterology and Hepatology, Tianjin Medical University General Hospital, Heping District, Tianjin, China
| | - Gaoyue Guo
- Department of Gastroenterology and Hepatology, Tianjin Medical University General Hospital, Heping District, Tianjin, China
| | - Binxin Cui
- Department of Gastroenterology and Hepatology, Tianjin Medical University General Hospital, Heping District, Tianjin, China
- Department of Gastroenterology, Tianjin Medical University General Hospital Airport Hospital, Tianjin, China
| | - Chaoqun Li
- Department of Internal Medicine, Tianjin Hexi Hospital, Hexi District, Tianjin, China
| | - Xiaoyu Wang
- Department of Gastroenterology and Hepatology, Tianjin Medical University General Hospital, Heping District, Tianjin, China
| | - Xiaofei Fan
- Department of Gastroenterology and Hepatology, Tianjin Medical University General Hospital, Heping District, Tianjin, China
| | - Chao Sun
- Department of Gastroenterology and Hepatology, Tianjin Medical University General Hospital, Anshan Road 154, Heping District, Tianjin 300052, China
- Department of Gastroenterology, Tianjin Medical University General Hospital Airport Hospital, Tianjin, China
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4
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Górska A, Markiewicz-Gospodarek A, Markiewicz R, Chilimoniuk Z, Borowski B, Trubalski M, Czarnek K. Distribution of Iron, Copper, Zinc and Cadmium in Glia, Their Influence on Glial Cells and Relationship with Neurodegenerative Diseases. Brain Sci 2023; 13:911. [PMID: 37371389 DOI: 10.3390/brainsci13060911] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2023] [Revised: 05/30/2023] [Accepted: 06/03/2023] [Indexed: 06/29/2023] Open
Abstract
Recent data on the distribution and influence of copper, zinc and cadmium in glial cells are summarized. This review also examines the relationship between those metals and their role in neurodegenerative diseases like Alzheimer disease, multiple sclerosis, Parkinson disease and Amyotrophic lateral sclerosis, which have become a great challenge for today's physicians. The studies suggest that among glial cells, iron has the highest concentration in oligodendrocytes, copper in astrocytes and zinc in the glia of hippocampus and cortex. Previous studies have shown neurotoxic effects of copper, iron and manganese, while zinc can have a bidirectional effect, i.e., neurotoxic but also neuroprotective effects depending on the dose and disease state. Recent data point to the association of metals with neurodegeneration through their role in the modulation of protein aggregation. Metals can accumulate in the brain with aging and may be associated with age-related diseases.
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Affiliation(s)
- Aleksandra Górska
- Department of Human Anatomy, Medical University of Lublin, 4 Jaczewskiego St., 20-090 Lublin, Poland
| | | | - Renata Markiewicz
- Department of Psychiatric Nursing, Medical University of Lublin, 18 Szkolna St., 20-124 Lublin, Poland
| | - Zuzanna Chilimoniuk
- Student Scientific Group at the Department of Family Medicine, 6a (SPSK1) Langiewicza St., 20-032 Lublin, Poland
| | - Bartosz Borowski
- Students Scientific Association at the Department of Human Anatomy, Medical University of Lublin, 20-090 Lublin, Poland
| | - Mateusz Trubalski
- Students Scientific Association at the Department of Human Anatomy, Medical University of Lublin, 20-090 Lublin, Poland
| | - Katarzyna Czarnek
- Institute of Health Sciences, The John Paul II Catholic University of Lublin, Konstantynów 1 H, 20-708 Lublin, Poland
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5
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Sousa MS, Alves JL, Freitas JCS, Miraldo JN, Sampaio Dos Aidos FDS, Santos RM, Rosário LM, Quinta-Ferreira RM, Quinta-Ferreira ME, Matias CM. A model of zinc dynamics evoked by intense stimulation at the cleft of hippocampal mossy fiber synapses. Brain Res 2023; 1807:148322. [PMID: 36906226 DOI: 10.1016/j.brainres.2023.148322] [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: 09/16/2022] [Revised: 02/28/2023] [Accepted: 03/06/2023] [Indexed: 03/12/2023]
Abstract
Zinc is a transition metal that is particularly abundant in the mossy fibers of the hippocampal CA3 area. Despite the large number of studies about the zinc role in mossy fibers, the action of zinc in synaptic mechanisms is only partly known. The use of computational models can be a useful tool for this study. In a previous work, a model was developed to evaluate zinc dynamics at the mossy fiber synaptic cleft, following weak stimulation, insufficient to evoke zinc entry into postsynaptic neurons. For intense stimulation, cleft zinc effluxes must be considered. Therefore, the initial model was extended to include postsynaptic zinc effluxes based on the Goldman-Hodgkin-Katz current equation combined with Hodgkin and Huxley conductance changes. These effluxes occur through different postsynaptic escape routes, namely L- and N-types voltage-dependent calcium channels and NMDA receptors. For that purpose, various stimulations were assumed to induce high concentrations of cleft free zinc, named as intense (10 μM), very intense (100 μM) and extreme (500 μM). It was observed that the main postsynaptic escape routes of cleft zinc are the L-type calcium channels, followed by the NMDA receptor channels and by N-type calcium channels. However, their relative contribution for cleft zinc clearance was relatively small and decreased for higher amounts of zinc, most likely due to the blockade action of zinc in postsynaptic receptors and channels. Therefore, it can be concluded that the larger the zinc release, the more predominant the zinc uptake process will be in the cleft zinc clearance.
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Affiliation(s)
- Marta S Sousa
- Department of Physics, University of Coimbra, P-3004-516 Coimbra, Portugal; ESS-IPP - Superior School of Health - Polytechnic Institute of Porto, P-4200-072 Porto, Portugal; CNC- Center for Neuroscience and Cell Biology, University of Coimbra, P-3004-504 Coimbra, Portugal
| | - João L Alves
- CNC- Center for Neuroscience and Cell Biology, University of Coimbra, P-3004-504 Coimbra, Portugal; Department of Life Sciences, University of Coimbra, P-3004-516 Coimbra, Portugal
| | | | - João N Miraldo
- Department of Civil Engineering, University of Coimbra, P-3030-790 Coimbra, Portugal
| | - Fernando D S Sampaio Dos Aidos
- CNC- Center for Neuroscience and Cell Biology, University of Coimbra, P-3004-504 Coimbra, Portugal; CFisUC, Department of Physics, University of Coimbra, P-3004-516 Coimbra, Portugal
| | - Rosa M Santos
- CNC- Center for Neuroscience and Cell Biology, University of Coimbra, P-3004-504 Coimbra, Portugal; Department of Life Sciences, University of Coimbra, P-3004-516 Coimbra, Portugal
| | - Luís M Rosário
- CNC- Center for Neuroscience and Cell Biology, University of Coimbra, P-3004-504 Coimbra, Portugal; Department of Life Sciences, University of Coimbra, P-3004-516 Coimbra, Portugal
| | - Rosa M Quinta-Ferreira
- CIEPQPF - Research Centre of Chemical Process Engineering and Forest Products, Department of Chemical Engineering, University of Coimbra, P-3030-790 Coimbra, Portugal
| | - M Emília Quinta-Ferreira
- Department of Physics, University of Coimbra, P-3004-516 Coimbra, Portugal; CNC- Center for Neuroscience and Cell Biology, University of Coimbra, P-3004-504 Coimbra, Portugal
| | - Carlos M Matias
- CNC- Center for Neuroscience and Cell Biology, University of Coimbra, P-3004-504 Coimbra, Portugal; Dept. of Physics, UTAD- University of Trás-os-montes and Alto Douro, P-5000-801 Vila Real, Portugal.
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6
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Larasati YA, Savitsky M, Koval A, Solis GP, Valnohova J, Katanaev VL. Restoration of the GTPase activity and cellular interactions of Gα o mutants by Zn 2+ in GNAO1 encephalopathy models. SCIENCE ADVANCES 2022; 8:eabn9350. [PMID: 36206333 PMCID: PMC9544338 DOI: 10.1126/sciadv.abn9350] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/01/2022] [Accepted: 08/22/2022] [Indexed: 06/16/2023]
Abstract
De novo point mutations in GNAO1, gene encoding the major neuronal G protein Gαo, have recently emerged in patients with pediatric encephalopathy having motor, developmental, and epileptic dysfunctions. Half of clinical cases affect codons Gly203, Arg209, or Glu246; we show that these mutations accelerate GTP uptake and inactivate GTP hydrolysis through displacement Gln205 critical for GTP hydrolysis, resulting in constitutive GTP binding by Gαo. However, the mutants fail to adopt the activated conformation and display aberrant interactions with signaling partners. Through high-throughput screening of approved drugs, we identify zinc pyrithione and Zn2+ as agents restoring active conformation, GTPase activity, and cellular interactions of the encephalopathy mutants, with negligible effects on wild-type Gαo. We describe a Drosophila model of GNAO1 encephalopathy where dietary zinc restores the motor function and longevity of the mutant flies. Zinc supplements are approved for diverse human neurological conditions. Our work provides insights into the molecular etiology of GNAO1 encephalopathy and defines a potential therapy for the patients.
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Affiliation(s)
- Yonika A. Larasati
- Translational Research Centre in Oncohaematology, Department of Cell Physiology and Metabolism, Faculty of Medicine, University of Geneva, CH-1211 Geneva, Switzerland
| | - Mikhail Savitsky
- Translational Research Centre in Oncohaematology, Department of Cell Physiology and Metabolism, Faculty of Medicine, University of Geneva, CH-1211 Geneva, Switzerland
| | - Alexey Koval
- Translational Research Centre in Oncohaematology, Department of Cell Physiology and Metabolism, Faculty of Medicine, University of Geneva, CH-1211 Geneva, Switzerland
| | - Gonzalo P. Solis
- Translational Research Centre in Oncohaematology, Department of Cell Physiology and Metabolism, Faculty of Medicine, University of Geneva, CH-1211 Geneva, Switzerland
| | - Jana Valnohova
- Translational Research Centre in Oncohaematology, Department of Cell Physiology and Metabolism, Faculty of Medicine, University of Geneva, CH-1211 Geneva, Switzerland
| | - Vladimir L. Katanaev
- Translational Research Centre in Oncohaematology, Department of Cell Physiology and Metabolism, Faculty of Medicine, University of Geneva, CH-1211 Geneva, Switzerland
- Institute of Life Sciences and Biomedicine, Far Eastern Federal University, 690090 Vladivostok, Russia
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7
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Emojevwe V, Nwangwa EK, Naiho AO, Oyovwi MO, Igiehon O, Ogunwole E, Makinde-Taylor MS, Ayotomide OA, Akinola AO, Edesiri PT, Oghenetega BO, Ovuakporaye SI. Therapeutic efficacy of N-acetylcysteine and zinc sulphate against di-(2-ethylhexyl) phthalate-induced testicular oxido-nitrergic stress in male Wistar rat. Andrologia 2022; 54:e14508. [PMID: 35842931 DOI: 10.1111/and.14508] [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] [Received: 08/29/2021] [Revised: 03/21/2022] [Accepted: 05/29/2022] [Indexed: 11/30/2022] Open
Abstract
The therapeutic efficacy of N-acetylcysteine (NAC) and zinc sulphate on di-(2-ethylhexyl) phthalate (DEHP)-induced testicular oxido-nitrergic stress in rats was investigated in 36 male Wistar rats (170 ± 10 g) randomly assigned into one of six groups (n = 6). Group 1 (control) received 2.5 ml/kg of distilled water for 42 days, while group 2 (vehicle) received 2.5 ml/kg of corn oil for 42 days. Groups 3,4,5, and 6 were administered DEHP (750 mg/kg/day) for 21 days, after which groups 4, 5, and 6 received zinc sulphate (0.5 mg/kg/day), NAC (100 mg/kg/day), and zinc sulphate (0.5 mg/kg/day) + NAC (100 mg/kg/day) for an additional 21 days respectively. After the experimental period, the animals were euthanized by light thiopental sodium, and their testes were carefully dissected out for histological and biochemical assays. The result shows a significant alteration in testicular levels of malondialdehyde, nitric oxide, antioxidant enzymes, total antioxidant capacity, sulphydryl levels, dehydrogenases and testicular architecture following the administration of DEHP. These effects were reversed by coadministration of NAC and zinc sulphate in the study. We therefore concluded that the combined effects of NAC and ZnSO4 effectively improved testicular antioxidant status and reduced testicular nitregic stress, thus improving testicular architecture and functions.
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Affiliation(s)
- Victor Emojevwe
- Department of Physiology, University of Medical Sciences, Ondo City, Nigeria
- Department of Physiology, Delta State University, Abraka, Nigeria
| | | | | | | | - Osarugue Igiehon
- Department of Physiology, University of Medical Sciences, Ondo City, Nigeria
| | - Eunice Ogunwole
- Department of Physiology, University of Medical Sciences, Ondo City, Nigeria
| | | | | | | | - Prince Tesi Edesiri
- Department of Science Laboratory Technology, Delta State Polytechnic, Ogwash-Uku, Nigeria
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8
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The Assessment of Dietary Organic Zinc on Zinc Homeostasis, Antioxidant Capacity, Immune Response, Glycolysis and Intestinal Microbiota in White Shrimp (Litopenaeus vannamei Boone, 1931). Antioxidants (Basel) 2022; 11:antiox11081492. [PMID: 36009211 PMCID: PMC9405169 DOI: 10.3390/antiox11081492] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2022] [Revised: 07/26/2022] [Accepted: 07/28/2022] [Indexed: 02/04/2023] Open
Abstract
This study aimed to assess dietary organic zinc on zinc homeostasis, antioxidant capacity, immune response, glycolysis and intestinal microbiota in white shrimp (Litopenaeus vannamei Boone, 1931). Six experimental diets were formulated: Control, zinc free; S120, 120 mg·kg−1 zinc from ZnSO4·7H2O added into control diet; O30, O60, O90 and O120, 30, 60, 90 and 120 mg·kg−1 zinc from Zn-proteinate added into control diet, respectively. The results showed that organic zinc significantly promoted zinc content and gene expression of ZnT1, ZIP11 and MT in the hepatopancreas and enhanced antioxidant capacity and immunity (in terms of increased activities of T-SOD, Cu/Zn SOD, PO, LZM, decreased content of MDA, upregulated expressions of GST, G6PDH, ProPO, LZM and Hemo, and increased resistance to Vibrio parahaemolyticus). Organic zinc significantly upregulated GluT1 expression in the intestine, increased glucose content of plasma and GCK, PFK and PDH activities of hepatopancreas, and decreased pyruvate content of hepatopancreas. Organic zinc improved intestinal microbiota communities, increased the abundance of potentially beneficial bacteria and decreased the abundance of potential pathogens. Inorganic zinc (S120) also had positive effects, but organic zinc (as low as O60) could achieve better effects. Overall, organic zinc had a higher bioavailability and was a more beneficial zinc resource than inorganic zinc in shrimp feeds.
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9
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Guo D, Zhou Y, Wei X, Zhang S, Jin T, Zhang Y, Lin M, Zhou X, Xie Y, He C, Lin Q, He P, Ding Y. Preliminary study of genome-wide association identifies novel susceptibility genes for serum mineral elements in the Chinese Han population. Biol Trace Elem Res 2022; 200:2549-2555. [PMID: 34417961 DOI: 10.1007/s12011-021-02854-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/07/2021] [Accepted: 07/27/2021] [Indexed: 02/03/2023]
Abstract
Mineral elements (copper (Cu), zinc (Zn), calcium (Ca), magnesium (Mg), iron (Fe)) play important biological roles in enzymes, hormones, vitamins, and normal metabolism. The deficiency of mineral elements can lead to abnormal physiological functions. And some elements (such as lead (Pb)) are harmful to the body. We aim to identify genetic loci which can influence the serum levels of mineral elements (Cu, Zn, Ca, Mg, Fe, and Pb). Genotyping was performed using Applied Biosystems Axiom™ PMDA in 587 individuals, and 6,423,076 single-nucleotide polymorphisms (SNPs) were available for the genome-wide association study (GWAS) analysis. The association between genotype and phenotype was analyzed using mixed linear regression (additive genetic model) adjusting by age and gender combined with identical by descent (IBD) matrix. Genetic loci in BCHE-LOC105374194, DTX2P1-UPK3BP1-PMS2P11, VAT1L, LINC00908-LINC00683, LINC01310-NONE, and rs6747410 in VWA3B were identified to be associated with serum Cu element concentration (p < 5 × 10-6). ADAMTSL1 rs17229526 (p = 4.96 × 10-6) was significantly associated with serum Zn element levels. Genetic loci in LRP1B, PIGZ-MELTF, LINC01365-LINC02502, and HAPLN3 were related to serum Ca element levels (p < 5 ×1 0-6). Three SNPs in ALPK1, ASAP1-ADCY8 and IER3IP1-SKOR2 also achieved a significant association with Mg element levels (p < 5 × 10-6). TACSTD2-MYSM1, LRP1B, and ASAP1-ADCY8 showed suggestive associations with serum Fe element levels (p < 5 × 10-6). Moreover, the two most significant SNPs associated with Pb were rs304234 in CADPS-LINC00698 (p = 2.47 × 10-6) and rs12666460 in LOC101928211-GPR37 (p = 1.81 × 10-6). In summary, we reported 19 suggestive loci associated with serum mineral elements in the Chinese Han population. These findings provided new insights into the potential mechanisms regulating serum mineral elements levels.
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Affiliation(s)
- Duojian Guo
- Department of General Practice, Hainan General Hospital, Hainan Affiliated Hospital of Hainan Medical University, #19, Xiuhua Road, Xiuying District, Haikou #19, Xiuhua Road, Xiuying District, Haikou, Hainan, 570311, People's Republic of China
- Zuguan Health Center, Lingshui Li Autonomous County, Lingshui, Hainan, 572426, People's Republic of China
| | - Yu Zhou
- Appointment Clinic Service Center, Hainan General Hospital, Hainan Affiliated Hospital of Hainan Medical University, Haikou, Hainan, 570311, People's Republic of China
| | - Xingwei Wei
- Department of General Practice, Hainan General Hospital, Hainan Affiliated Hospital of Hainan Medical University, #19, Xiuhua Road, Xiuying District, Haikou #19, Xiuhua Road, Xiuying District, Haikou, Hainan, 570311, People's Republic of China
| | - Shanshan Zhang
- Xi'an 21st Century Biological Science and Technology Co., Ltd, Xi'an, Shaanxi, 712000, People's Republic of China
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, Northwest University, Xi'an, 710069, Shaanxi, China
- Provincial Key Laboratory of Biotechnology of Shaanxi Province, Northwest University, Xi'an, 710069, Shaanxi, China
| | - Tianbo Jin
- Xi'an 21st Century Biological Science and Technology Co., Ltd, Xi'an, Shaanxi, 712000, People's Republic of China
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, Northwest University, Xi'an, 710069, Shaanxi, China
- Provincial Key Laboratory of Biotechnology of Shaanxi Province, Northwest University, Xi'an, 710069, Shaanxi, China
| | - Yutian Zhang
- Department of General Practice, Hainan General Hospital, Hainan Affiliated Hospital of Hainan Medical University, #19, Xiuhua Road, Xiuying District, Haikou #19, Xiuhua Road, Xiuying District, Haikou, Hainan, 570311, People's Republic of China
| | - Mei Lin
- Department of General Practice, Hainan General Hospital, Hainan Affiliated Hospital of Hainan Medical University, #19, Xiuhua Road, Xiuying District, Haikou #19, Xiuhua Road, Xiuying District, Haikou, Hainan, 570311, People's Republic of China
| | - Xiaoli Zhou
- Department of General Practice, Hainan General Hospital, Hainan Affiliated Hospital of Hainan Medical University, #19, Xiuhua Road, Xiuying District, Haikou #19, Xiuhua Road, Xiuying District, Haikou, Hainan, 570311, People's Republic of China
| | - Yufei Xie
- Department of General Practice, Hainan General Hospital, Hainan Affiliated Hospital of Hainan Medical University, #19, Xiuhua Road, Xiuying District, Haikou #19, Xiuhua Road, Xiuying District, Haikou, Hainan, 570311, People's Republic of China
| | - Chanyi He
- Department of General Practice, Hainan General Hospital, Hainan Affiliated Hospital of Hainan Medical University, #19, Xiuhua Road, Xiuying District, Haikou #19, Xiuhua Road, Xiuying District, Haikou, Hainan, 570311, People's Republic of China
| | - Qi Lin
- Department of General Practice, Hainan General Hospital, Hainan Affiliated Hospital of Hainan Medical University, #19, Xiuhua Road, Xiuying District, Haikou #19, Xiuhua Road, Xiuying District, Haikou, Hainan, 570311, People's Republic of China
| | - Ping He
- Department of General Practice, Hainan General Hospital, Hainan Affiliated Hospital of Hainan Medical University, #19, Xiuhua Road, Xiuying District, Haikou #19, Xiuhua Road, Xiuying District, Haikou, Hainan, 570311, People's Republic of China.
| | - Yipeng Ding
- Department of General Practice, Hainan General Hospital, Hainan Affiliated Hospital of Hainan Medical University, #19, Xiuhua Road, Xiuying District, Haikou #19, Xiuhua Road, Xiuying District, Haikou, Hainan, 570311, People's Republic of China.
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10
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Asahina K. Induction of Cell Death in Pancreatic Tumors by Zinc and Its Fluorescence Chelator TSQ. Biol Trace Elem Res 2022; 200:1667-1676. [PMID: 34100198 DOI: 10.1007/s12011-021-02770-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/01/2021] [Accepted: 05/26/2021] [Indexed: 12/29/2022]
Abstract
Pancreatic ductal adenocarcinoma is a devastating cancer and is the fourth-leading cause of cancer death in the USA. Zinc is abundant in the pancreas, but its role in pancreatic cancer remains elusive. The aim of this study is to determine effects of zinc chelators in pancreatic cancer. Pdx1Cre and LSL-KrasG12D mice expressing an oncogenic mutation of KRAS develop pancreatic intraepithelial neoplasia in the pancreas. We found that EPCAM + tumors developed in the mouse pancreas store zinc that is detectable by fluorescence-activated cell sorting using N-(6-methoxy-8-quinolyl)-p-toluenesulfonamide (TSQ), a fluorescence chelator. EPCAM + TSQ + tumor cells isolated from the mouse pancreas formed organoids in matrigel. Upon treatment with N,N,N',N'-tetrakis(2-pyridinylmethyl)-1,2-ethanediamine (TPEN), a zinc chelator, the organoids degenerated and its negative effect was rescued by co-treatment with zinc, indicating that zinc is necessary for the growth and survival of tumor organoids. Different from TPEN, TSQ treatment did not affect the organoid growth and survival. Interestingly, co-treatment with TSQ and zinc resulted in strong emission of TSQ fluorescence in the organoid and its degeneration. The combination of zinc with TSQ, but not with TPEN, also induced cell death in PANC-1, a human pancreatic cancer cell line. These results suggest that a TSQ-zinc complex formed in pancreatic tumors induces cell death if zinc is overloaded.
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Affiliation(s)
- Kinji Asahina
- The Southern California Research Center for ALPD & Cirrhosis, Department of Pathology, Keck School of Medicine of the University of Southern California, 1333 San Pablo St., MMR 402, Los Angeles, CA, 90033, USA.
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11
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Chin-Chan M, Montes S, Blanco-Álvarez VM, Aguirre-Alarcón HA, Hernández-Rodríguez I, Bautista E. Relevance of biometals during neuronal differentiation and myelination: in vitro and in vivo studies. Biometals 2022; 35:395-427. [DOI: 10.1007/s10534-022-00380-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2021] [Accepted: 02/27/2022] [Indexed: 12/20/2022]
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12
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Lécuyer T, Bia N, Burckel P, Loubat C, Graillot A, Seguin J, Corvis Y, Liu J, Valéro L, Scherman D, Mignet N, Richard C. Persistent luminescence nanoparticles functionalized by polymers bearing phosphonic acid anchors: synthesis, characterization, and in vivo behaviour. NANOSCALE 2022; 14:1386-1394. [PMID: 35018394 DOI: 10.1039/d1nr07114a] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Optical in vivo imaging has become a widely used technique and is still under development for clinical diagnostics and treatment applications. For further development of the field, researchers have put much effort into the development of inorganic nanoparticles (NPs) as imaging probes. In this trend, our laboratory developed ZnGa1.995O4Cr0.005 (ZGO) nanoparticles, which can emit a bright persistent luminescence signal through the tissue transparency window for dozens of minutes and can be activated in vivo with visible irradiation. These properties endow them with unique features, allowing us to recover information over a long-time study with in vivo imaging without any background. To target tissues of interest, ZGO must circulate long enough in the blood stream, a phenomenon which is limited by the mononuclear phagocyte system (MPS). Depending on their size, charge and coating, the NPs are sooner or later opsonized and stored into the main organs of the MPS (liver, spleen, and lungs). The NPs therefore have to be coated with a hydrophilic polymer to avoid this limitation. To this end, a new functionalization method using two different polyethylene glycol phosphonic acid polymers (a linear one, later named lpPEG and a branched one, later named pPEG) has been studied in this article. The coating has been optimized and characterized in various aqueous media. The behaviour of the newly functionalized NPs has been investigated in the presence of plasmatic proteins, and an in vivo biodistribution study has been performed. Among them ZGOpPEG exhibits a long circulation time, corresponding to low protein adsorption, while presenting an effective one-step process in aqueous medium with a low hydrodynamic diameter increase. This new method is much more advantageous than another strategy we reported previously that used a two-step PEG silane coating performed in an organic solvent (dimethylformamide) for which the final hydrodynamic diameter was twice the initial diameter.
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Affiliation(s)
- Thomas Lécuyer
- Université de Paris, CNRS, INSERM, UTCBS, Unité de Technologies Chimiques et Biologiques pour la Santé, Faculté de Pharmacie, 75006 Paris, France.
| | - Nicolas Bia
- Specific Polymers, ZAC Via Domitia 150 Avenue des Cocardières, 34160 Castries, France
| | - Pierre Burckel
- Institut de Physique du Globe de Paris (IPGP), Université de Paris, France
| | - Cédric Loubat
- Specific Polymers, ZAC Via Domitia 150 Avenue des Cocardières, 34160 Castries, France
| | - Alain Graillot
- Specific Polymers, ZAC Via Domitia 150 Avenue des Cocardières, 34160 Castries, France
| | - Johanne Seguin
- Université de Paris, CNRS, INSERM, UTCBS, Unité de Technologies Chimiques et Biologiques pour la Santé, Faculté de Pharmacie, 75006 Paris, France.
| | - Yohann Corvis
- Université de Paris, CNRS, INSERM, UTCBS, Unité de Technologies Chimiques et Biologiques pour la Santé, Faculté de Pharmacie, 75006 Paris, France.
| | - Jianhua Liu
- Université de Paris, CNRS, INSERM, UTCBS, Unité de Technologies Chimiques et Biologiques pour la Santé, Faculté de Pharmacie, 75006 Paris, France.
| | - Lucie Valéro
- Université de Paris, CNRS, INSERM, UTCBS, Unité de Technologies Chimiques et Biologiques pour la Santé, Faculté de Pharmacie, 75006 Paris, France.
| | - Daniel Scherman
- Université de Paris, CNRS, INSERM, UTCBS, Unité de Technologies Chimiques et Biologiques pour la Santé, Faculté de Pharmacie, 75006 Paris, France.
| | - Nathalie Mignet
- Université de Paris, CNRS, INSERM, UTCBS, Unité de Technologies Chimiques et Biologiques pour la Santé, Faculté de Pharmacie, 75006 Paris, France.
| | - Cyrille Richard
- Université de Paris, CNRS, INSERM, UTCBS, Unité de Technologies Chimiques et Biologiques pour la Santé, Faculté de Pharmacie, 75006 Paris, France.
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13
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Planeta Kepp K. Bioinorganic Chemistry of Zinc in Relation to the Immune System. Chembiochem 2021; 23:e202100554. [PMID: 34889510 DOI: 10.1002/cbic.202100554] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2021] [Revised: 12/09/2021] [Indexed: 01/18/2023]
Abstract
Zinc is well-known to have a central role in human inflammation and immunity and is itself an anti-inflammatory and antiviral agent. Despite its massively documented role in such processes, the underlying chemistry of zinc in relation to specific proteins and pathways of the immune system has not received much focus. This short review provides an overview of this topic, with emphasis on the structures of key proteins, zinc coordination chemistry, and probable mechanisms involved in zinc-based immunity, with some focus points for future chemical and biological research.
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Affiliation(s)
- Kasper Planeta Kepp
- DTU Chemistry, Technical University of Denmark, Building 206, 2800, Kongens Lyngby, Denmark
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14
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Bai SP, Gao W, Yuan T, Ma XY, He LJ, Huang L, Wei S, Liu C, Wang WC, Yang L, Zhu YW. Change of zinc mobilization and gene expression of key zinc transport proteins between the yolk sac membrane and liver of duck embryonic developing. Poult Sci 2021; 101:101562. [PMID: 34823184 PMCID: PMC8626674 DOI: 10.1016/j.psj.2021.101562] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2021] [Revised: 09/21/2021] [Accepted: 10/08/2021] [Indexed: 01/21/2023] Open
Abstract
Zinc (Zn) deposition in egg yolk is essential for the rapid growth and complete development of the avian embryo. Thus, it is crucial to obtain maximal Zn mobilization at an appropriate time during development in favor of the survival of avian embryos. The aim of this study was to study the developmental change of Zn mobilization and gene expression related to key Zn transport proteins between the yolk sac membrane and embryonic liver from the incubation d 17 (E17) to d 32 (E32) during duck embryonic developing. The weights of duck embryo, embryo without yolk sac, and embryonic liver increased as well as the yolk sac weight decreased linearly (P < 0.0001) when incubation day increased. The Zn concentration in the yolk sac did not change from E17 to E29 and only declined significantly from E29 to E32 of duck embryos, while hepatic Zn level decreased linearly as with the increased incubation time (P < 0.01). When the incubation day increased, the decreased Zn amount in the yolk sac and the increased Zn amount in the embryonic liver were observed (P < 0.0001). The calculated transfer-out rate of Zn in the yolk sac and transfer-in rate of Zn in livers were both increased from E23-26 to E29-32 (P < 0.01). Among E17, E23 and E29, the solute carrier family 39 member (ZIP) of ZIP10, ZIP13, and ZIP14 genes mRNA expressions were increased in yolk sac membrane but were decreased in the embryonic liver, while metallothionein 1 mRNA expression was increased both in the yolk sac membrane and liver (P < 0.05). In conclusion, yolk sac membrane and embryonic liver tissues displayed the similar developmental patterns of Zn mobilization and metallothionein 1 mRNA expression from E17 to E32 during duck embryonic developing. The appropriate time of the maximal rate of Zn mobilization were observed between E29 and E32 of duck embryo, associated with the significant changes of gene expression related to some key Zn transport proteins on E29 in yolk sac membrane and liver tissues.
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Affiliation(s)
- S P Bai
- Guangdong Provincial Key Laboratory of Animal Nutrition and Regulation, College of Animal Science, South China Agricultural University, Guangzhou, China; Animal Nutrition Institute, Sichuan Agricultural University, Chengdu 611130, Sichuan, China
| | - W Gao
- Guangdong Provincial Key Laboratory of Animal Nutrition and Regulation, College of Animal Science, South China Agricultural University, Guangzhou, China
| | - T Yuan
- Guangdong Provincial Key Laboratory of Animal Nutrition and Regulation, College of Animal Science, South China Agricultural University, Guangzhou, China
| | - X Y Ma
- Institute of Animal Science, Guangdong Academy of Agricultural Sciences, Key Laboratory of Animal Nutrition and Feed Science (South China) of Ministry of Agriculture, State Key Laboratory of Livestock and Poultry Breeding, Guangdong Pubic Laboratory of Animal Breeding and Nutrition, Guangdong Key Laboratory of Animal Breeding and Nutrition, Guangzhou, China
| | - L J He
- Guangdong Provincial Key Laboratory of Animal Nutrition and Regulation, College of Animal Science, South China Agricultural University, Guangzhou, China
| | - L Huang
- Guangdong Provincial Key Laboratory of Animal Nutrition and Regulation, College of Animal Science, South China Agricultural University, Guangzhou, China
| | - S Wei
- Wens Foodstuff Group Co. Ltd., Yunfu, China
| | - C Liu
- Wens Foodstuff Group Co. Ltd., Yunfu, China
| | - W C Wang
- Guangdong Provincial Key Laboratory of Animal Nutrition and Regulation, College of Animal Science, South China Agricultural University, Guangzhou, China
| | - L Yang
- Guangdong Provincial Key Laboratory of Animal Nutrition and Regulation, College of Animal Science, South China Agricultural University, Guangzhou, China
| | - Y W Zhu
- Guangdong Provincial Key Laboratory of Animal Nutrition and Regulation, College of Animal Science, South China Agricultural University, Guangzhou, China.
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15
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Rezazadeh A, Sadeghzadeh S, Namakin K, Tamimi A, Khanjani Z. The role of zinc in the pathogenesis and treatment of COVID-19: A review. MEDITERRANEAN JOURNAL OF NUTRITION AND METABOLISM 2021. [DOI: 10.3233/mnm-211524] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Destructive outcomes of coronavirus pandemic call for medical research which can report all of the influential agents not only for the treatment of the disease but also preventing its severe impacts on the societal health in the most efficient manner. Zinc plays an integral role in the function of cellular enzymes and transcription factors. Owing to its anti-inflammatory and cellular immunity regulation activity, zinc is regarded to be effective on strengthening the immune system. Its crucial antiviral effects have long been established as well. Studies suggest that low serum zinc level predisposes the patient to severe COVID-19 infection, which makes patient’s zinc profile a potential determinant of prognosis and severity of this disease. Furthermore, zinc supplementation has indicated promising outcomes of coronavirus infection management. Zinc modulates cell-mediated immunity and participates in the killing of microorganisms in cytotoxic immune cells. Zn2 + has anti-inflammatory effects by inhibiting IL-6 production. Although there is still not enough evidence, it seems that zinc could be a promising supplementary treatment for COVID-19 especially in zinc-deficient patients. The aim of this review is to clarify the role of zinc in pathogenesis and therapy of COVID-19 in detail.
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Affiliation(s)
- Arezoo Rezazadeh
- Department of Community Nutrition, NationalNutrition and Food Technology Research Institute, Faculty ofNutrition Sciences and Food Technology, Shahid Behehshti Universityof Medical Sciences, Tehran, Iran
| | - Sara Sadeghzadeh
- StudentResearch Committee, Faculty of Medicine, Shahid Beheshti Universityof Medical Sciences, Tehran, Iran
| | - Kosar Namakin
- StudentResearch Committee, Faculty of Medicine, Shahid Beheshti Universityof Medical Sciences, Tehran, Iran
| | - Atena Tamimi
- StudentResearch Committee, Faculty of Medicine, Shahid Beheshti Universityof Medical Sciences, Tehran, Iran
| | - Zahra Khanjani
- StudentResearch Committee, Faculty of Medicine, Shahid Beheshti Universityof Medical Sciences, Tehran, Iran
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16
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Luige O, Bose PP, Stulz R, Steunenberg P, Brun O, Andersson S, Murtola M, Strömberg R. Zn 2+-Dependent peptide nucleic acid-based artificial ribonucleases with unprecedented efficiency and specificity. Chem Commun (Camb) 2021; 57:10911-10914. [PMID: 34590632 DOI: 10.1039/d1cc04383h] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
We present Zn2+-dependent dimethyl-dipyridophenazine PNA conjugates as efficient RNA cleaving artificial enzymes. These PNAzymes display site-specific RNA cleavage with 10 minute half-lives and cleave clinically relevant RNA models.
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Affiliation(s)
- Olivia Luige
- Department of Biosciences and Nutrition, Karolinska Institutet, Neo, 141 83 Huddinge, Sweden.
| | - Partha Pratim Bose
- Department of Biosciences and Nutrition, Karolinska Institutet, Neo, 141 83 Huddinge, Sweden.
| | - Rouven Stulz
- Department of Biosciences and Nutrition, Karolinska Institutet, Neo, 141 83 Huddinge, Sweden. .,Oligonucleotide Discovery, Discovery Sciences, BioPharmaceuticals R&D, AstraZeneca, Gothenburg, Sweden.,DMPK, Research and Early Development, Cardiovascular, Renal and Metabolism, BioPharmaceuticals R&D, AstraZeneca, Gothenburg, Sweden
| | - Peter Steunenberg
- Department of Biosciences and Nutrition, Karolinska Institutet, Neo, 141 83 Huddinge, Sweden.
| | - Omar Brun
- Department of Biosciences and Nutrition, Karolinska Institutet, Neo, 141 83 Huddinge, Sweden.
| | - Shalini Andersson
- Oligonucleotide Discovery, Discovery Sciences, BioPharmaceuticals R&D, AstraZeneca, Gothenburg, Sweden
| | - Merita Murtola
- Department of Biosciences and Nutrition, Karolinska Institutet, Neo, 141 83 Huddinge, Sweden.
| | - Roger Strömberg
- Department of Biosciences and Nutrition, Karolinska Institutet, Neo, 141 83 Huddinge, Sweden.
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17
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Ma C, Gong C. Expression, Purification and Characterization of a ZIP Family Transporter from Desulfovibrio vulgaris. Protein J 2021; 40:776-785. [PMID: 34101092 DOI: 10.1007/s10930-021-10008-7] [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] [Accepted: 06/03/2021] [Indexed: 10/21/2022]
Abstract
The ZIP family transport zinc ions from the extracellular medium across the plasma membrane or from the intracellular compartments across endomembranes, which play fundamental roles in metal homeostasis and are broadly involved in physiological and pathological processes. Desulfovibrio is the predominant sulphate-reducing bacteria in human colonic microbiota, but also a potential choice for metal bioremediation. while, there are no published studies describing the zinc transporters from Desulfovibrio up to now. In this study, we obtained for the first time a heterologously expressed ZIP homolog from Desulfovibrio vulgaris, termed dvZip. The purified dvZip was reconstituted into proteoliposomes, and confirmed its zinc transport ability in vitro. By combining topology prediction, homology modeling and phylogenetic approaches, we also noticed that dvZip belongs to the GufA and probably have 8 transmembrane α-helical segments (TM 1-8) in which both termini are located on the extracellular, with TM2, 4, 5 and 7 create an inner bundle. We believe that purification and characterization of zinc (probably also cadmium) transporters from Desulfovibrio vulgaris such as dvZip could shed light on understanding of metal homeostasis of Desulfovibrio and provided protein products for future detailed function and structural studies.
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Affiliation(s)
- Cheng Ma
- Protein Facility, Zhejiang University School of Medicine, Zhejiang University, Hangzhou, 310058, China.
| | - Caixia Gong
- Department of Geriatrics, the First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, 310058, China
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18
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Kumar V, Singh J, Bala K, Singh J. Association of Metallothionein 1A gene polymorphisms at rs11640851 and rs8052394 with risk of type 2 diabetes mellitus in Indian population. Meta Gene 2021. [DOI: 10.1016/j.mgene.2021.100862] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022] Open
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19
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Xue J, Xie L, Liu B, Zhou L, Hu Y, Ajuwon KM, Fang R. Dietary Supplementation of EGF Ameliorates the Negatively Effects of LPS on Early-Weaning Piglets: From Views of Growth Performance, Nutrient Digestibility, Microelement Absorption and Possible Mechanisms. Animals (Basel) 2021; 11:ani11061598. [PMID: 34071588 PMCID: PMC8227379 DOI: 10.3390/ani11061598] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2021] [Revised: 05/22/2021] [Accepted: 05/26/2021] [Indexed: 12/13/2022] Open
Abstract
Simple Summary This study aims to investigate how epidermal growth factor (EGF) attenuates the effect of lipopolysaccharide (LPS) on the growth performance, nutrient digestibility, microelement absorption of early-weaned pigs. A total of 48 early weaned piglets were randomly distributed to four groups consisting of a 2 × 2 factorial design. The main factors were the level of LPS (HLPS = high LPS: 100 μg/kg body weight; ZLPS = low LPS: 0 μg/kg body weight) and EGF (HEGF = high EGF: 2 mg/kg diet; ZEGF = low EGF: 0 mg/kg diet). Each group had four replicates and each replicate consisted of three piglets. The results showed that HLPS level decreased the growth performance and the apparent digestibility of crude fat, while HEGF level increased the average daily feed intake. The concentration of most microelements in the gastrointestinal tract chyme and feces were increased by HLPS level and decreased by HEGF level. The expression levels of most microelement transport-relative genes in the mucosa of gastrointestinal tissues were decreased by HLPS level and increased by HEGF level. In conclusion, dietary EGF could attenuate the negative effect of LPS exposure on the apparent digestibility of crude fat and microelement absorption through changing the expression levels of microelement transport-relative genes. EGF can be used as an additive to increase the essential trace elements absorption in the early weaning piglets. Abstract Epidermal growth factor (EGF) plays an important role in nutrients absorption. However, whether it can be an effective additive to improve the growth performance and nutrients absorption in lipopolysaccharide (LPS) challenged early weaning piglets is still unknown. A 14-days trial was conducted to investigate how EGF attenuates the effect of LPS on the growth performance, nutrient digestibility, microelement absorption of early-weaned pigs, and study the underlying mechanism. A total of 48 early weaned piglets, aged 25 days, were randomly distributed to four groups (control, EGF, LPS and EGF + LPS groups) consisting of a 2 × 2 factorial design. The main factors were the level of LPS (HLPS = high LPS: 100 μg/kg body weight; ZLPS = low LPS: 0 μg/kg body weight) and EGF (HEGF = high EGF: 2 mg/kg diet; ZEGF = low EGF: 0 mg/kg diet). Each group had four replicates and each replicate consisted of three piglets. The results showed that piglets injected with HLPS level significantly decreased the average daily gain (ADG), and significantly increased the feed conversion ratio (FCR) compared with the piglets injected with ZLPS level, while piglets fed HEGF level significantly increased the average daily feed intake (ADFI) compared with the piglets fed ZEGF level (p < 0.05). Piglets injected with HLPS level significantly decreased the apparent digestibility of crude fat compared with the piglets injected with ZLPS level (p < 0.05). Piglets injected with HLPS level significantly increased the concentration of most microelements in the gastrointestinal tract chyme and feces, and significantly decreased the expression levels of most microelement transport-relative genes in the mucosa of gastrointestinal tissues compared with the piglets injected with ZLPS level (p < 0.05). Piglets fed HEGF level significantly decreased the concentration of microelement in the gastrointestinal tract chyme and feces, and significantly increased the expression levels of the microelement transport-relative genes in the mucosa of gastrointestinal tissues compared with the piglets fed ZEGF level (p < 0.05). In conclusion, dietary EGF could attenuate the negative effect of LPS exposure on the apparent digestibility of crude fat and microelement absorption of early-weaning piglets. EGF and LPS influenced the absorption of essential trace element through changing the expression levels of microelement transport-relative genes in the mucosa of gastrointestinal tissues. In the early weaning piglets, EGF can be used as an additive to increase the essential trace elements absorption.
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Affiliation(s)
- Junjing Xue
- College of Animal Science and Technology, Hunan Agricultural University, No. 1 Nongda Road, Furong District, Changsha 410128, China; (J.X.); (L.X.); (B.L.); (L.Z.); (Y.H.)
- Hunan Co-Innovation Center of Animal Production Safety, Changsha 410128, China
| | - Liang Xie
- College of Animal Science and Technology, Hunan Agricultural University, No. 1 Nongda Road, Furong District, Changsha 410128, China; (J.X.); (L.X.); (B.L.); (L.Z.); (Y.H.)
- Hunan Co-Innovation Center of Animal Production Safety, Changsha 410128, China
| | - Bo Liu
- College of Animal Science and Technology, Hunan Agricultural University, No. 1 Nongda Road, Furong District, Changsha 410128, China; (J.X.); (L.X.); (B.L.); (L.Z.); (Y.H.)
- Hunan Co-Innovation Center of Animal Production Safety, Changsha 410128, China
| | - Liyuan Zhou
- College of Animal Science and Technology, Hunan Agricultural University, No. 1 Nongda Road, Furong District, Changsha 410128, China; (J.X.); (L.X.); (B.L.); (L.Z.); (Y.H.)
- Hunan Co-Innovation Center of Animal Production Safety, Changsha 410128, China
| | - Yajun Hu
- College of Animal Science and Technology, Hunan Agricultural University, No. 1 Nongda Road, Furong District, Changsha 410128, China; (J.X.); (L.X.); (B.L.); (L.Z.); (Y.H.)
- Hunan Co-Innovation Center of Animal Production Safety, Changsha 410128, China
| | - Kolapo Matthew Ajuwon
- Department of Animal Sciences, Purdue University, West Lafayette, IN 47907-2054, USA;
| | - Rejun Fang
- College of Animal Science and Technology, Hunan Agricultural University, No. 1 Nongda Road, Furong District, Changsha 410128, China; (J.X.); (L.X.); (B.L.); (L.Z.); (Y.H.)
- Hunan Co-Innovation Center of Animal Production Safety, Changsha 410128, China
- Correspondence: ; Tel.: +86-(0)731-8618177
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20
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Lieberwirth JK, Joset P, Heinze A, Hentschel J, Stein A, Iannaccone A, Steindl K, Kuechler A, Abou Jamra R. Bi-allelic loss of function variants in SLC30A5 as cause of perinatal lethal cardiomyopathy. Eur J Hum Genet 2021; 29:808-815. [PMID: 33547425 PMCID: PMC8110774 DOI: 10.1038/s41431-020-00803-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2020] [Revised: 12/13/2020] [Accepted: 12/17/2020] [Indexed: 01/29/2023] Open
Abstract
Perinatal mortality is a heavy burden for both affected parents and physicians. However, the underlying genetic causes have not been sufficiently investigated and most cases remain without diagnosis. This impedes appropriate counseling or therapy. We describe four affected children of two unrelated families with cardiomyopathy, hydrops fetalis, or cystic hygroma that all deceased perinatally. In the four patients, we found the following homozygous loss of function (LoF) variants in SLC30A5 NM_022902.4:c.832_836del p.(Ile278Phefs*33) and NM_022902.4:c.1981_1982del p.(His661Tyrfs*10). Knockout of SLC30A5 has previously been shown a cardiac phenotype in mouse models and no homozygous LoF variants in SLC30A5 are currently described in gnomAD. Taken together, we present SLC30A5 as a new gene for a severe and perinatally lethal form of cardiomyopathy.
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Affiliation(s)
- Johann Kaspar Lieberwirth
- grid.411339.d0000 0000 8517 9062Institute of Human Genetics, University Medical Center Leipzig, Leipzig, Germany
| | - Pascal Joset
- grid.7400.30000 0004 1937 0650Institute of Medical Genetics, University of Zurich, Schlieren, Switzerland
| | - Anja Heinze
- grid.411339.d0000 0000 8517 9062Institute of Human Genetics, University Medical Center Leipzig, Leipzig, Germany
| | - Julia Hentschel
- grid.411339.d0000 0000 8517 9062Institute of Human Genetics, University Medical Center Leipzig, Leipzig, Germany
| | - Anja Stein
- grid.5718.b0000 0001 2187 5445Department of Pediatrics I, Division of Neonatology, University Medical Center Essen, University Duisburg—Essen, Essen, Germany
| | - Antonella Iannaccone
- grid.5718.b0000 0001 2187 5445Department of Gynecology and Obstetrics, University Medical Center Essen, University Duisburg—Essen, Essen, Germany
| | - Katharina Steindl
- grid.7400.30000 0004 1937 0650Institute of Medical Genetics, University of Zurich, Schlieren, Switzerland
| | - Alma Kuechler
- grid.5718.b0000 0001 2187 5445Institute of Human Genetics, University Medical Center Essen, University of Duisburg—Essen, Essen, Germany
| | - Rami Abou Jamra
- grid.411339.d0000 0000 8517 9062Institute of Human Genetics, University Medical Center Leipzig, Leipzig, Germany
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The Multifaceted Roles of Zinc in Neuronal Mitochondrial Dysfunction. Biomedicines 2021; 9:biomedicines9050489. [PMID: 33946782 PMCID: PMC8145363 DOI: 10.3390/biomedicines9050489] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2021] [Revised: 03/05/2021] [Accepted: 03/07/2021] [Indexed: 12/17/2022] Open
Abstract
Zinc is a highly abundant cation in the brain, essential for cellular functions, including transcription, enzymatic activity, and cell signaling. However, zinc can also trigger injurious cascades in neurons, contributing to the pathology of neurodegenerative diseases. Mitochondria, critical for meeting the high energy demands of the central nervous system (CNS), are a principal target of the deleterious actions of zinc. An increasing body of work suggests that intracellular zinc can, under certain circumstances, contribute to neuronal damage by inhibiting mitochondrial energy processes, including dissipation of the mitochondrial membrane potential (MMP), leading to ATP depletion. Additional consequences of zinc-mediated mitochondrial damage include reactive oxygen species (ROS) generation, mitochondrial permeability transition, and excitotoxic calcium deregulation. Zinc can also induce mitochondrial fission, resulting in mitochondrial fragmentation, as well as inhibition of mitochondrial motility. Here, we review the known mechanisms responsible for the deleterious actions of zinc on the organelle, within the context of neuronal injury associated with neurodegenerative processes. Elucidating the critical contributions of zinc-induced mitochondrial defects to neurotoxicity and neurodegeneration may provide insight into novel therapeutic targets in the clinical setting.
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22
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Sergeeva EG, Rosenberg PA, Benowitz LI. Non-Cell-Autonomous Regulation of Optic Nerve Regeneration by Amacrine Cells. Front Cell Neurosci 2021; 15:666798. [PMID: 33935656 PMCID: PMC8085350 DOI: 10.3389/fncel.2021.666798] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2021] [Accepted: 03/19/2021] [Indexed: 11/13/2022] Open
Abstract
Visual information is conveyed from the eye to the brain through the axons of retinal ganglion cells (RGCs) that course through the optic nerve and synapse onto neurons in multiple subcortical visual relay areas. RGCs cannot regenerate their axons once they are damaged, similar to most mature neurons in the central nervous system (CNS), and soon undergo cell death. These phenomena of neurodegeneration and regenerative failure are widely viewed as being determined by cell-intrinsic mechanisms within RGCs or to be influenced by the extracellular environment, including glial or inflammatory cells. However, a new concept is emerging that the death or survival of RGCs and their ability to regenerate axons are also influenced by the complex circuitry of the retina and that the activation of a multicellular signaling cascade involving changes in inhibitory interneurons - the amacrine cells (AC) - contributes to the fate of RGCs. Here, we review our current understanding of the role that interneurons play in cell survival and axon regeneration after optic nerve injury.
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Affiliation(s)
- Elena G. Sergeeva
- Department of Neurology, Boston Children’s Hospital, Boston, MA, United States
- Kirby Center for Neuroscience, Boston Children’s Hospital, Boston, MA, United States
- Department of Neurology, Harvard Medical School, Boston, MA, United States
| | - Paul A. Rosenberg
- Department of Neurology, Boston Children’s Hospital, Boston, MA, United States
- Kirby Center for Neuroscience, Boston Children’s Hospital, Boston, MA, United States
- Department of Neurology, Harvard Medical School, Boston, MA, United States
| | - Larry I. Benowitz
- Kirby Center for Neuroscience, Boston Children’s Hospital, Boston, MA, United States
- Laboratories for Neuroscience Research in Neurosurgery, Boston Children’s Hospital, Boston, MA, United States
- Department of Neurosurgery, Boston Children’s Hospital, Boston, MA, United States
- Department of Neurosurgery, Harvard Medical School, Boston, MA, United States
- Department of Ophthalmology, Harvard Medical School, Boston, MA, United States
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Liu Y, Li Y, Pan B, Zhang X, Zhang H, Steinberg CEW, Qiu H, Vijver MG, Peijnenburg WJGM. Application of low dosage of copper oxide and zinc oxide nanoparticles boosts bacterial and fungal communities in soil. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 757:143807. [PMID: 33288254 DOI: 10.1016/j.scitotenv.2020.143807] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/27/2020] [Revised: 10/27/2020] [Accepted: 10/31/2020] [Indexed: 06/12/2023]
Abstract
With the expanding nanotechnology, nanoparticles (NPs) embedded products are used in the agricultural sector to improve soil fertility. Thus, two typical metal oxides NPs and their mixtures were applied in different doses to evaluate the impacts on soil microbes. CuO and ZnO NPs boosted soil microbial communities as reflected by the increased number of extractable bacterial or fungal groups and the enlarged values of Chao 1, ACE, and Shannon indices. Relative abundance of some susceptible taxa such as Sphingomonadales increased with increasing concentrations of ZnO NPs, while IMCC26256 decreased with increasing concentrations of CuO NPs. The mixture of CuO and ZnO NPs did not show more promotional effects on the soil bacterial community than the sum of individual effects. Increased soil organic carbon mitigated the impacts on soil bacteria for CuO NPs, but not for ZnO NPs. As micro-nutrients, the ions released from CuO and ZnO NPs had the potential to promote soil microbial community richness and diversity. However, the positive impacts of MNPs were impaired at dosage higher than 250 mg kg-1 soil (213.08 mg kg-1 soil of Cu, 162.73 mg kg-1 soil of Zn). Thus, the application dose and soil type other than the coexistence of MNPs should be considered before the wide use in increasing agricultural productivity.
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Affiliation(s)
- Yang Liu
- Yunnan Provincial Key Laboratory of Soil Carbon Sequestration and Pollution Control, Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming 650500, China
| | - Yang Li
- Yunnan Provincial Key Laboratory of Soil Carbon Sequestration and Pollution Control, Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming 650500, China
| | - Bo Pan
- Yunnan Provincial Key Laboratory of Soil Carbon Sequestration and Pollution Control, Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming 650500, China.
| | - Xinyue Zhang
- Yunnan Provincial Key Laboratory of Soil Carbon Sequestration and Pollution Control, Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming 650500, China
| | - Huang Zhang
- Faculty of Agriculture and Food, Kunming University of Science and Technology, Kunming 650500, China
| | - Christian E W Steinberg
- Yunnan Provincial Key Laboratory of Soil Carbon Sequestration and Pollution Control, Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming 650500, China; Institute of Biology, Freshwater & Stress Ecology, Humboldt University, Berlin 12437, Germany
| | - Hao Qiu
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Martina G Vijver
- Institute of Environmental Sciences (CML), Leiden University, Leiden 2300, RA, the Netherlands
| | - Willie J G M Peijnenburg
- Institute of Environmental Sciences (CML), Leiden University, Leiden 2300, RA, the Netherlands; National Institute of Public Health and the Environment (RIVM), Center for Safety of Substances and Products, Bilthoven 3720 BA, the Netherlands
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Sukumaran A, Pladwig S, Geddes-McAlister J. Zinc limitation in Klebsiella pneumoniae profiled by quantitative proteomics influences transcriptional regulation and cation transporter-associated capsule production. BMC Microbiol 2021; 21:43. [PMID: 33568055 PMCID: PMC7874612 DOI: 10.1186/s12866-021-02091-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2019] [Accepted: 01/12/2021] [Indexed: 01/02/2023] Open
Abstract
Background Microbial organisms encounter a variety of environmental conditions, including changes to metal ion availability. Metal ions play an important role in many biological processes for growth and survival. As such, microbes alter their cellular protein levels and secretion patterns in adaptation to a changing environment. This study focuses on Klebsiella pneumoniae, an opportunistic bacterium responsible for nosocomial infections. By using K. pneumoniae, we aim to determine how a nutrient-limited environment (e.g., zinc depletion) modulates the cellular proteome and secretome of the bacterium. By testing virulence in vitro, we provide novel insight into bacterial responses to limited environments in the presence of the host. Results Analysis of intra- and extracellular changes identified 2380 proteins from the total cellular proteome (cell pellet) and 246 secreted proteins (supernatant). Specifically, HutC, a repressor of the histidine utilization operon, showed significantly increased abundance under zinc-replete conditions, which coincided with an expected reduction in expression of genes within the hut operon from our validating qRT-PCR analysis. Additionally, we characterized a putative cation transport regulator, ChaB that showed significantly higher abundance under zinc-replete vs. -limited conditions, suggesting a role in metal ion homeostasis. Phenotypic analysis of a chaB deletion strain demonstrated a reduction in capsule production, zinc-dependent growth and ion utilization, and reduced virulence when compared to the wild-type strain. Conclusions This is first study to comprehensively profile the impact of zinc availability on the proteome and secretome of K. pneumoniae and uncover a novel connection between zinc transport and capsule production in the bacterial system. Supplementary Information The online version contains supplementary material available at 10.1186/s12866-021-02091-8.
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Affiliation(s)
- A Sukumaran
- Department of Molecular and Cellular Biology, University of Guelph, Guelph, Ontario, N1G 2W1, Canada
| | - S Pladwig
- Department of Molecular and Cellular Biology, University of Guelph, Guelph, Ontario, N1G 2W1, Canada
| | - J Geddes-McAlister
- Department of Molecular and Cellular Biology, University of Guelph, Guelph, Ontario, N1G 2W1, Canada.
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25
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Granzotto A, Canzoniero LMT, Sensi SL. A Neurotoxic Ménage-à-trois: Glutamate, Calcium, and Zinc in the Excitotoxic Cascade. Front Mol Neurosci 2020; 13:600089. [PMID: 33324162 PMCID: PMC7725690 DOI: 10.3389/fnmol.2020.600089] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2020] [Accepted: 10/30/2020] [Indexed: 12/12/2022] Open
Abstract
Fifty years ago, the seminal work by John Olney provided the first evidence of the neurotoxic properties of the excitatory neurotransmitter glutamate. A process hereafter termed excitotoxicity. Since then, glutamate-driven neuronal death has been linked to several acute and chronic neurological conditions, like stroke, traumatic brain injury, Alzheimer’s, Parkinson’s, and Huntington’s diseases, and Amyotrophic Lateral Sclerosis. Mechanisms linked to the overactivation of glutamatergic receptors involve an aberrant cation influx, which produces the failure of the ionic neuronal milieu. In this context, zinc, the second most abundant metal ion in the brain, is a key but still somehow underappreciated player of the excitotoxic cascade. Zinc is an essential element for neuronal functioning, but when dysregulated acts as a potent neurotoxin. In this review, we discuss the ionic changes and downstream effects involved in the glutamate-driven neuronal loss, with a focus on the role exerted by zinc. Finally, we summarize our work on the fascinating distinct properties of NADPH-diaphorase neurons. This neuronal subpopulation is spared from excitotoxic insults and represents a powerful tool to understand mechanisms of resilience against excitotoxic processes.
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Affiliation(s)
- Alberto Granzotto
- Sue and Bill Gross Stem Cell Research Center, University of California, Irvine, Irvine, CA, United States.,Center for Advanced Sciences and Technology (CAST), University "G. d'Annunzio" of Chieti-Pescara, Chieti, Italy.,Department of Neuroscience, Imaging, and Clinical Sciences (DNISC), Laboratory of Molecular Neurology, University "G. d'Annunzio" of Chieti-Pescara, Chieti, Italy
| | | | - Stefano L Sensi
- Center for Advanced Sciences and Technology (CAST), University "G. d'Annunzio" of Chieti-Pescara, Chieti, Italy.,Department of Neuroscience, Imaging, and Clinical Sciences (DNISC), Laboratory of Molecular Neurology, University "G. d'Annunzio" of Chieti-Pescara, Chieti, Italy.,Institute for Memory Impairments and Neurological Disorders, University of California, Irvine, Irvine, CA, United States
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The role of labile Zn 2+ and Zn 2+-transporters in the pathophysiology of mitochondria dysfunction in cardiomyocytes. Mol Cell Biochem 2020; 476:971-989. [PMID: 33225416 DOI: 10.1007/s11010-020-03964-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2020] [Accepted: 10/23/2020] [Indexed: 02/06/2023]
Abstract
An important energy supplier of cardiomyocytes is mitochondria, similar to other mammalian cells. Studies have demonstrated that any defect in the normal processes controlled by mitochondria can lead to abnormal ROS production, thereby high oxidative stress as well as lack of ATP. Taken into consideration, the relationship between mitochondrial dysfunction and overproduction of ROS as well as the relation between increased ROS and high-level release of intracellular labile Zn2+, those bring into consideration the importance of the events related with those stimuli in cardiomyocytes responsible from cellular Zn2+-homeostasis and responsible Zn2+-transporters associated with the Zn2+-homeostasis and Zn2+-signaling. Zn2+-signaling, controlled by cellular Zn2+-homeostatic mechanisms, is regulated with intracellular labile Zn2+ levels, which are controlled, especially, with the two Zn2+-transporter families; ZIPs and ZnTs. Our experimental studies in mammalian cardiomyocytes and human heart tissue showed that Zn2+-transporters localizes to mitochondria besides sarco(endo)plasmic reticulum and Golgi under physiological condition. The protein levels as well as functions of those transporters can re-distribute under pathological conditions, therefore, they can interplay among organelles in cardiomyocytes to adjust a proper intracellular labile Zn2+ level. In the present review, we aimed to summarize the already known Zn2+-transporters localize to mitochondria and function to stabilize not only the cellular Zn2+ level but also cellular oxidative stress status. In conclusion, one can propose that a detailed understanding of cellular Zn2+-homeostasis and Zn2+-signaling through mitochondria may emphasize the importance of new mitochondria-targeting agents for prevention and/or therapy of cardiovascular dysfunction in humans.
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27
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Schumann T, König J, Henke C, Willmes DM, Bornstein SR, Jordan J, Fromm MF, Birkenfeld AL. Solute Carrier Transporters as Potential Targets for the Treatment of Metabolic Disease. Pharmacol Rev 2020; 72:343-379. [PMID: 31882442 DOI: 10.1124/pr.118.015735] [Citation(s) in RCA: 85] [Impact Index Per Article: 21.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
The solute carrier (SLC) superfamily comprises more than 400 transport proteins mediating the influx and efflux of substances such as ions, nucleotides, and sugars across biological membranes. Over 80 SLC transporters have been linked to human diseases, including obesity and type 2 diabetes (T2D). This observation highlights the importance of SLCs for human (patho)physiology. Yet, only a small number of SLC proteins are validated drug targets. The most recent drug class approved for the treatment of T2D targets sodium-glucose cotransporter 2, product of the SLC5A2 gene. There is great interest in identifying other SLC transporters as potential targets for the treatment of metabolic diseases. Finding better treatments will prove essential in future years, given the enormous personal and socioeconomic burden posed by more than 500 million patients with T2D by 2040 worldwide. In this review, we summarize the evidence for SLC transporters as target structures in metabolic disease. To this end, we identified SLC13A5/sodium-coupled citrate transporter, and recent proof-of-concept studies confirm its therapeutic potential in T2D and nonalcoholic fatty liver disease. Further SLC transporters were linked in multiple genome-wide association studies to T2D or related metabolic disorders. In addition to presenting better-characterized potential therapeutic targets, we discuss the likely unnoticed link between other SLC transporters and metabolic disease. Recognition of their potential may promote research on these proteins for future medical management of human metabolic diseases such as obesity, fatty liver disease, and T2D. SIGNIFICANCE STATEMENT: Given the fact that the prevalence of human metabolic diseases such as obesity and type 2 diabetes has dramatically risen, pharmacological intervention will be a key future approach to managing their burden and reducing mortality. In this review, we present the evidence for solute carrier (SLC) genes associated with human metabolic diseases and discuss the potential of SLC transporters as therapeutic target structures.
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Affiliation(s)
- Tina Schumann
- Section of Metabolic and Vascular Medicine, Medical Clinic III, Dresden University School of Medicine (T.S., C.H., D.M.W., S.R.B.), and Paul Langerhans Institute Dresden of the Helmholtz Center Munich at University Hospital and Faculty of Medicine (T.S., C.H., D.M.W.), Technische Universität Dresden, Dresden, Germany; Deutsches Zentrum für Diabetesforschung e.V., Neuherberg, Germany (T.S., C.H., D.M.W., A.L.B.); Clinical Pharmacology and Clinical Toxicology, Institute of Experimental and Clinical Pharmacology and Toxicology, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany (J.K., M.F.F.); Institute for Aerospace Medicine, German Aerospace Center and Chair for Aerospace Medicine, University of Cologne, Cologne, Germany (J.J.); Diabetes and Nutritional Sciences, King's College London, London, United Kingdom (S.R.B., A.L.B.); Institute for Diabetes Research and Metabolic Diseases of the Helmholtz Centre Munich at the University of Tübingen, Tübingen, Germany (A.L.B.); and Department of Internal Medicine, Division of Endocrinology, Diabetology and Nephrology, Eberhard Karls University Tübingen, Tübingen, Germany (A.L.B.)
| | - Jörg König
- Section of Metabolic and Vascular Medicine, Medical Clinic III, Dresden University School of Medicine (T.S., C.H., D.M.W., S.R.B.), and Paul Langerhans Institute Dresden of the Helmholtz Center Munich at University Hospital and Faculty of Medicine (T.S., C.H., D.M.W.), Technische Universität Dresden, Dresden, Germany; Deutsches Zentrum für Diabetesforschung e.V., Neuherberg, Germany (T.S., C.H., D.M.W., A.L.B.); Clinical Pharmacology and Clinical Toxicology, Institute of Experimental and Clinical Pharmacology and Toxicology, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany (J.K., M.F.F.); Institute for Aerospace Medicine, German Aerospace Center and Chair for Aerospace Medicine, University of Cologne, Cologne, Germany (J.J.); Diabetes and Nutritional Sciences, King's College London, London, United Kingdom (S.R.B., A.L.B.); Institute for Diabetes Research and Metabolic Diseases of the Helmholtz Centre Munich at the University of Tübingen, Tübingen, Germany (A.L.B.); and Department of Internal Medicine, Division of Endocrinology, Diabetology and Nephrology, Eberhard Karls University Tübingen, Tübingen, Germany (A.L.B.)
| | - Christine Henke
- Section of Metabolic and Vascular Medicine, Medical Clinic III, Dresden University School of Medicine (T.S., C.H., D.M.W., S.R.B.), and Paul Langerhans Institute Dresden of the Helmholtz Center Munich at University Hospital and Faculty of Medicine (T.S., C.H., D.M.W.), Technische Universität Dresden, Dresden, Germany; Deutsches Zentrum für Diabetesforschung e.V., Neuherberg, Germany (T.S., C.H., D.M.W., A.L.B.); Clinical Pharmacology and Clinical Toxicology, Institute of Experimental and Clinical Pharmacology and Toxicology, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany (J.K., M.F.F.); Institute for Aerospace Medicine, German Aerospace Center and Chair for Aerospace Medicine, University of Cologne, Cologne, Germany (J.J.); Diabetes and Nutritional Sciences, King's College London, London, United Kingdom (S.R.B., A.L.B.); Institute for Diabetes Research and Metabolic Diseases of the Helmholtz Centre Munich at the University of Tübingen, Tübingen, Germany (A.L.B.); and Department of Internal Medicine, Division of Endocrinology, Diabetology and Nephrology, Eberhard Karls University Tübingen, Tübingen, Germany (A.L.B.)
| | - Diana M Willmes
- Section of Metabolic and Vascular Medicine, Medical Clinic III, Dresden University School of Medicine (T.S., C.H., D.M.W., S.R.B.), and Paul Langerhans Institute Dresden of the Helmholtz Center Munich at University Hospital and Faculty of Medicine (T.S., C.H., D.M.W.), Technische Universität Dresden, Dresden, Germany; Deutsches Zentrum für Diabetesforschung e.V., Neuherberg, Germany (T.S., C.H., D.M.W., A.L.B.); Clinical Pharmacology and Clinical Toxicology, Institute of Experimental and Clinical Pharmacology and Toxicology, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany (J.K., M.F.F.); Institute for Aerospace Medicine, German Aerospace Center and Chair for Aerospace Medicine, University of Cologne, Cologne, Germany (J.J.); Diabetes and Nutritional Sciences, King's College London, London, United Kingdom (S.R.B., A.L.B.); Institute for Diabetes Research and Metabolic Diseases of the Helmholtz Centre Munich at the University of Tübingen, Tübingen, Germany (A.L.B.); and Department of Internal Medicine, Division of Endocrinology, Diabetology and Nephrology, Eberhard Karls University Tübingen, Tübingen, Germany (A.L.B.)
| | - Stefan R Bornstein
- Section of Metabolic and Vascular Medicine, Medical Clinic III, Dresden University School of Medicine (T.S., C.H., D.M.W., S.R.B.), and Paul Langerhans Institute Dresden of the Helmholtz Center Munich at University Hospital and Faculty of Medicine (T.S., C.H., D.M.W.), Technische Universität Dresden, Dresden, Germany; Deutsches Zentrum für Diabetesforschung e.V., Neuherberg, Germany (T.S., C.H., D.M.W., A.L.B.); Clinical Pharmacology and Clinical Toxicology, Institute of Experimental and Clinical Pharmacology and Toxicology, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany (J.K., M.F.F.); Institute for Aerospace Medicine, German Aerospace Center and Chair for Aerospace Medicine, University of Cologne, Cologne, Germany (J.J.); Diabetes and Nutritional Sciences, King's College London, London, United Kingdom (S.R.B., A.L.B.); Institute for Diabetes Research and Metabolic Diseases of the Helmholtz Centre Munich at the University of Tübingen, Tübingen, Germany (A.L.B.); and Department of Internal Medicine, Division of Endocrinology, Diabetology and Nephrology, Eberhard Karls University Tübingen, Tübingen, Germany (A.L.B.)
| | - Jens Jordan
- Section of Metabolic and Vascular Medicine, Medical Clinic III, Dresden University School of Medicine (T.S., C.H., D.M.W., S.R.B.), and Paul Langerhans Institute Dresden of the Helmholtz Center Munich at University Hospital and Faculty of Medicine (T.S., C.H., D.M.W.), Technische Universität Dresden, Dresden, Germany; Deutsches Zentrum für Diabetesforschung e.V., Neuherberg, Germany (T.S., C.H., D.M.W., A.L.B.); Clinical Pharmacology and Clinical Toxicology, Institute of Experimental and Clinical Pharmacology and Toxicology, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany (J.K., M.F.F.); Institute for Aerospace Medicine, German Aerospace Center and Chair for Aerospace Medicine, University of Cologne, Cologne, Germany (J.J.); Diabetes and Nutritional Sciences, King's College London, London, United Kingdom (S.R.B., A.L.B.); Institute for Diabetes Research and Metabolic Diseases of the Helmholtz Centre Munich at the University of Tübingen, Tübingen, Germany (A.L.B.); and Department of Internal Medicine, Division of Endocrinology, Diabetology and Nephrology, Eberhard Karls University Tübingen, Tübingen, Germany (A.L.B.)
| | - Martin F Fromm
- Section of Metabolic and Vascular Medicine, Medical Clinic III, Dresden University School of Medicine (T.S., C.H., D.M.W., S.R.B.), and Paul Langerhans Institute Dresden of the Helmholtz Center Munich at University Hospital and Faculty of Medicine (T.S., C.H., D.M.W.), Technische Universität Dresden, Dresden, Germany; Deutsches Zentrum für Diabetesforschung e.V., Neuherberg, Germany (T.S., C.H., D.M.W., A.L.B.); Clinical Pharmacology and Clinical Toxicology, Institute of Experimental and Clinical Pharmacology and Toxicology, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany (J.K., M.F.F.); Institute for Aerospace Medicine, German Aerospace Center and Chair for Aerospace Medicine, University of Cologne, Cologne, Germany (J.J.); Diabetes and Nutritional Sciences, King's College London, London, United Kingdom (S.R.B., A.L.B.); Institute for Diabetes Research and Metabolic Diseases of the Helmholtz Centre Munich at the University of Tübingen, Tübingen, Germany (A.L.B.); and Department of Internal Medicine, Division of Endocrinology, Diabetology and Nephrology, Eberhard Karls University Tübingen, Tübingen, Germany (A.L.B.)
| | - Andreas L Birkenfeld
- Section of Metabolic and Vascular Medicine, Medical Clinic III, Dresden University School of Medicine (T.S., C.H., D.M.W., S.R.B.), and Paul Langerhans Institute Dresden of the Helmholtz Center Munich at University Hospital and Faculty of Medicine (T.S., C.H., D.M.W.), Technische Universität Dresden, Dresden, Germany; Deutsches Zentrum für Diabetesforschung e.V., Neuherberg, Germany (T.S., C.H., D.M.W., A.L.B.); Clinical Pharmacology and Clinical Toxicology, Institute of Experimental and Clinical Pharmacology and Toxicology, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany (J.K., M.F.F.); Institute for Aerospace Medicine, German Aerospace Center and Chair for Aerospace Medicine, University of Cologne, Cologne, Germany (J.J.); Diabetes and Nutritional Sciences, King's College London, London, United Kingdom (S.R.B., A.L.B.); Institute for Diabetes Research and Metabolic Diseases of the Helmholtz Centre Munich at the University of Tübingen, Tübingen, Germany (A.L.B.); and Department of Internal Medicine, Division of Endocrinology, Diabetology and Nephrology, Eberhard Karls University Tübingen, Tübingen, Germany (A.L.B.)
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Grzeszczak K, Kwiatkowski S, Kosik-Bogacka D. The Role of Fe, Zn, and Cu in Pregnancy. Biomolecules 2020; 10:E1176. [PMID: 32806787 PMCID: PMC7463674 DOI: 10.3390/biom10081176] [Citation(s) in RCA: 58] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2020] [Revised: 08/05/2020] [Accepted: 08/05/2020] [Indexed: 12/15/2022] Open
Abstract
Iron (Fe), copper (Cu), and zinc (Zn) are microelements essential for the proper functioning of living organisms. These elements participatein many processes, including cellular metabolism and antioxidant and anti-inflammatory defenses, and also influence enzyme activity, regulate gene expression, and take part in protein synthesis. Fe, Cu, and Zn have a significant impact on the health of pregnant women and in the development of the fetus, as well as on the health of the newborn. A proper concentration of these elements in the body of women during pregnancy reduces the risk of complications such as anemia, induced hypertension, low birth weight, preeclampsia, and postnatal complications. The interactions between Fe, Cu, and Zn influence their availability due to their similar physicochemical properties. This most often occurs during intestinal absorption, where metal ions compete for binding sites with transport compounds. Additionally, the relationships between these ions have a great influence on the course of reactions in the tissues, as well as on their excretion, which can be stimulated or delayed. This review aims to summarize reports on the influence of Fe, Cu, and Zn on the course of single and multiple pregnancies, and to discuss the interdependencies and mechanisms occurring between Fe, Cu, and Zn.
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Affiliation(s)
- Konrad Grzeszczak
- Department of Biology and Medical Parasitology, Pomeranian Medical University in Szczecin, Powstańców Wielkopolskich 72, 70-111 Szczecin, Poland;
| | - Sebastian Kwiatkowski
- Department of Obstetrics and Gynecology, Pomeranian Medical University in Szczecin, Powstańców Wielkopolskich 72, 70-111 Szczecin, Poland;
| | - Danuta Kosik-Bogacka
- Independent Laboratory of Pharmaceutical Botany, Pomeranian Medical University in Szczecin, Powstańców Wielkopolskich 72, 70-111 Szczecin, Poland
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29
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Thingholm TE, Rönnstrand L, Rosenberg PA. Why and how to investigate the role of protein phosphorylation in ZIP and ZnT zinc transporter activity and regulation. Cell Mol Life Sci 2020; 77:3085-3102. [PMID: 32076742 PMCID: PMC7391401 DOI: 10.1007/s00018-020-03473-3] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2019] [Revised: 01/13/2020] [Accepted: 01/28/2020] [Indexed: 12/20/2022]
Abstract
Zinc is required for the regulation of proliferation, metabolism, and cell signaling. It is an intracellular second messenger, and the cellular level of ionic, mobile zinc is strictly controlled by zinc transporters. In mammals, zinc homeostasis is primarily regulated by ZIP and ZnT zinc transporters. The importance of these transporters is underscored by the list of diseases resulting from changes in transporter expression and activity. However, despite numerous structural studies of the transporters revealing both zinc binding sites and motifs important for transporter function, the exact molecular mechanisms regulating ZIP and ZnT activities are still not clear. For example, protein phosphorylation was found to regulate ZIP7 activity resulting in the release of Zn2+ from intracellular stores leading to phosphorylation of tyrosine kinases and activation of signaling pathways. In addition, sequence analyses predict all 24 human zinc transporters to be phosphorylated suggesting that protein phosphorylation is important for regulation of transporter function. This review describes how zinc transporters are implicated in a number of important human diseases. It summarizes the current knowledge regarding ZIP and ZnT transporter structures and points to how protein phosphorylation seems to be important for the regulation of zinc transporter activity. The review addresses the need to investigate the role of protein phosphorylation in zinc transporter function and regulation, and argues for a pressing need to introduce quantitative phosphoproteomics to specifically target zinc transporters and proteins involved in zinc signaling. Finally, different quantitative phosphoproteomic strategies are suggested.
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Affiliation(s)
- T E Thingholm
- Department of Molecular Medicine, Cancer and Inflammation Research, University of Southern Denmark, J.B. Winsløws Vej 25, 3, 5000, Odense C, Denmark.
| | - L Rönnstrand
- Division of Translational Cancer Research, Lund University, Medicon Village, Building 404, Scheelevägen 2, Lund, Sweden
- Lund Stem Cell Center, Lund University, Medicon Village, Building 404, Scheelevägen 2, Lund, Sweden
- Division of Oncology, Skåne University Hospital, Lund, Sweden
| | - P A Rosenberg
- Department of Neurology and F.M. Kirby Neurobiology Center, Boston Children's Hospital, 300 Longwood Ave, Boston, MA, 02115, USA
- Department of Neurology and Program in Neuroscience, Harvard Medical School, Boston, MA, 02115, USA
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Zinc and Autophagy in Age-Related Macular Degeneration. Int J Mol Sci 2020; 21:ijms21144994. [PMID: 32679798 PMCID: PMC7404247 DOI: 10.3390/ijms21144994] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2020] [Revised: 07/13/2020] [Accepted: 07/13/2020] [Indexed: 02/06/2023] Open
Abstract
Zinc supplementation is reported to slow down the progression of age-related macular degeneration (AMD), but there is no general consensus on the beneficiary effect on zinc in AMD. As zinc can stimulate autophagy that is declined in AMD, it is rational to assume that it can slow down its progression. As melanosomes are the main reservoir of zinc in the retina, zinc may decrease the number of lipofuscin granules that are substrates for autophagy. The triad zinc–autophagy–AMD could explain some controversies associated with population studies on zinc supplementation in AMD as the effect of zinc on AMD may be modulated by genetic background. This aspect was not determined in many studies regarding zinc in AMD. Zinc deficiency induces several events associated with AMD pathogenesis, including increased oxidative stress, lipid peroxidation and the resulting lipofuscinogenesis. The latter requires autophagy, which is impaired. This is a vicious cycle-like reaction that may contribute to AMD progression. Promising results with zinc deficiency and supplementation in AMD patients and animal models, as well as emerging evidence of the importance of autophagy in AMD, are the rationale for future research on the role of autophagy in the role of zinc supplementation in AMD.
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Kang BS, Choi BY, Kho AR, Lee SH, Hong DK, Jeong JH, Kang DH, Park MK, Suh SW. An Inhibitor of the Sodium-Hydrogen Exchanger-1 (NHE-1), Amiloride, Reduced Zinc Accumulation and Hippocampal Neuronal Death after Ischemia. Int J Mol Sci 2020; 21:ijms21124232. [PMID: 32545865 PMCID: PMC7352629 DOI: 10.3390/ijms21124232] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2020] [Revised: 06/12/2020] [Accepted: 06/12/2020] [Indexed: 12/11/2022] Open
Abstract
Acidosis in the brain plays an important role in neuronal injury and is a common feature of several neurological diseases. It has been reported that the sodium–hydrogen exchanger-1 (NHE-1) is a key mediator of acidosis-induced neuronal injury. It modulates the concentration of intra- and extra-cellular sodium and hydrogen ions. During the ischemic state, excessive sodium ions enter neurons and inappropriately activate the sodium–calcium exchanger (NCX). Zinc can also enter neurons through voltage-gated calcium channels and NCX. Here, we tested the hypothesis that zinc enters the intracellular space through NCX and the subsequent zinc accumulation induces neuronal cell death after global cerebral ischemia (GCI). Thus, we conducted the present study to confirm whether inhibition of NHE-1 by amiloride attenuates zinc accumulation and subsequent hippocampus neuronal death following GCI. Mice were subjected to GCI by bilateral common carotid artery (BCCA) occlusion for 30 min, followed by restoration of blood flow and resuscitation. Amiloride (10 mg/kg, intraperitoneally (i.p.)) was immediately injected, which reduced zinc accumulation and neuronal death after GCI. Therefore, the present study demonstrates that amiloride attenuates GCI-induced neuronal injury, likely via the prevention of intracellular zinc accumulation. Consequently, we suggest that amiloride may have a high therapeutic potential for the prevention of GCI-induced neuronal death.
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Affiliation(s)
- Beom Seok Kang
- Department of Physiology, College of Medicine, Hallym University, Chuncheon 24252, Korea; (B.S.K.); (B.Y.C.); (A.R.K.); (S.H.L.); (D.K.H.); (J.H.J.); (M.K.P.)
| | - Bo Young Choi
- Department of Physiology, College of Medicine, Hallym University, Chuncheon 24252, Korea; (B.S.K.); (B.Y.C.); (A.R.K.); (S.H.L.); (D.K.H.); (J.H.J.); (M.K.P.)
| | - A Ra Kho
- Department of Physiology, College of Medicine, Hallym University, Chuncheon 24252, Korea; (B.S.K.); (B.Y.C.); (A.R.K.); (S.H.L.); (D.K.H.); (J.H.J.); (M.K.P.)
| | - Song Hee Lee
- Department of Physiology, College of Medicine, Hallym University, Chuncheon 24252, Korea; (B.S.K.); (B.Y.C.); (A.R.K.); (S.H.L.); (D.K.H.); (J.H.J.); (M.K.P.)
| | - Dae Ki Hong
- Department of Physiology, College of Medicine, Hallym University, Chuncheon 24252, Korea; (B.S.K.); (B.Y.C.); (A.R.K.); (S.H.L.); (D.K.H.); (J.H.J.); (M.K.P.)
| | - Jeong Hyun Jeong
- Department of Physiology, College of Medicine, Hallym University, Chuncheon 24252, Korea; (B.S.K.); (B.Y.C.); (A.R.K.); (S.H.L.); (D.K.H.); (J.H.J.); (M.K.P.)
| | - Dong Hyeon Kang
- Department of Medical Science, College of Medicine, Hallym University, Chuncheon 24252, Korea;
| | - Min Kyu Park
- Department of Physiology, College of Medicine, Hallym University, Chuncheon 24252, Korea; (B.S.K.); (B.Y.C.); (A.R.K.); (S.H.L.); (D.K.H.); (J.H.J.); (M.K.P.)
| | - Sang Won Suh
- Department of Physiology, College of Medicine, Hallym University, Chuncheon 24252, Korea; (B.S.K.); (B.Y.C.); (A.R.K.); (S.H.L.); (D.K.H.); (J.H.J.); (M.K.P.)
- Correspondence: ; Tel.: +82-10-8573-6364
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Mutations in Superoxide Dismutase 1 (Sod1) Linked to Familial Amyotrophic Lateral Sclerosis Can Disrupt High-Affinity Zinc-Binding Promoted by the Copper Chaperone for Sod1 (Ccs). Molecules 2020; 25:molecules25051086. [PMID: 32121118 PMCID: PMC7179120 DOI: 10.3390/molecules25051086] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2020] [Revised: 02/24/2020] [Accepted: 02/25/2020] [Indexed: 01/21/2023] Open
Abstract
Zinc (II) ions (hereafter simplified as zinc) are important for the structural and functional activity of many proteins. For Cu, Zn superoxide dismutase (Sod1), zinc stabilizes the native structure of each Sod1 monomer, promotes homo-dimerization and plays an important role in activity by "softening" the active site so that copper cycling between Cu(I) and Cu(II) can rapidly occur. Previously, we have reported that binding of Sod1 by its copper chaperone (Ccs) stabilizes a conformation of Sod1 that promotes site-specific high-affinity zinc binding. While there are a multitude of Sod1 mutations linked to the familial form of amyotrophic lateral sclerosis (fALS), characterizations by multiple research groups have been unable to realize strong commonalities among mutants. Here, we examine a set of fALS-linked Sod1 mutations that have been well-characterized and are known to possess variation in their biophysical characteristics. The zinc affinities of these mutants are evaluated here for the first time and then compared with the previously established value for wild-type Sod1 zinc affinity. Ccs does not have the same ability to promote zinc binding to these mutants as it does for the wild-type version of Sod1. Our data provides a deeper look into how (non)productive Sod1 maturation by Ccs may link a diverse set of fALS-Sod1 mutations.
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Zn 2+ stimulates salivary secretions via metabotropic zinc receptor ZnR/GPR39 in human salivary gland cells. Sci Rep 2019; 9:17648. [PMID: 31776425 PMCID: PMC6881433 DOI: 10.1038/s41598-019-54173-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2019] [Accepted: 11/06/2019] [Indexed: 12/19/2022] Open
Abstract
Zn2+ is a divalent cation that is essential for many biological activities, as it influences many ion channels and enzymatic activities. Zn2+ can evoke G-protein-coupled receptor signaling via activation of the metabotropic zinc receptor ZnR/GPR39. In spite of evidence suggesting the presence of ZnR/GPR39 in salivary gland cells, there has been no evidence of ZnR/GPR39-mediated modulation of salivary gland function. Here we characterized the role of ZnR/GPR39 in human submandibular gland cells. A 0.25% ZnCl2 solution evoked secretion of unstimulated and stimulated whole saliva in humans. We found that ZnR/GPR39 is expressed in human submandibular glands and HSG cells. Zn2+ increased cytosolic Ca2+ concentration ([Ca2+]i) in a concentration-dependent manner. Muscarinic antagonist had no effect on Zn2+-induced [Ca2+]i increase, which was completely blocked by the phospholipase C-β inhibitor. As with muscarinic agonist, Zn2+ also induced the translocation of aquaporin-5 (AQP-5) to the plasma membrane, which was drastically decreased in ZnR/GPR39-knockdown cells. These data suggest that the metabotropic Zn2+ receptor ZnR/GPR39 can modulate salivary secretion in human submandibular gland cells independent of muscarinic or histamine receptor signaling.
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Breton TS, Prentiss NK. Metal stress-related gene expression patterns in two marine invertebrates, Hediste diversicolor (Annelida, Polychaeta) and Littorina littorea (Mollusca, Gastropoda), at a former mining site. Comp Biochem Physiol C Toxicol Pharmacol 2019; 225:108588. [PMID: 31400476 PMCID: PMC6744975 DOI: 10.1016/j.cbpc.2019.108588] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/17/2019] [Revised: 07/23/2019] [Accepted: 08/06/2019] [Indexed: 12/22/2022]
Abstract
Abandoned mines often contaminate sediments with dissolved heavy metals and are known to impact many taxa. Physiological responses needed to avoid oxidative stress from metal toxicity include the upregulation of detoxification and metal-binding proteins such as glutathione-s-transferases and metallothioneins, which have been studied in diverse species. Fewer studies, however, have focused on gene expression changes to better understand these molecular mechanisms, especially across multiple species at a single contaminated site. To this end, the purpose of this study was to characterize metal stress-related gene expression in two species from different phyla, Hediste diversicolor (Annelida, Polychaeta) and Littorina littorea (Mollusca, Gastropoda), at a former mine site (Callahan Mine, Maine, USA). Both species and sediments were collected from a mine-affected tidal estuary (Goose Pond) and a nearby reference site. Elevated sediment metal levels were confirmed at Goose Pond. H. diversicolor individuals weighed significantly less at Goose Pond, while L. littorea weighed similarly at both sites. Transcript levels were stable in H. diversicolor but weakly upregulated in L. littorea, which likely reflect the importance of other physiological strategies for metal sequestration, or variable metal exposure at the individual level, respectively. In addition, patterns in glutathione-s-transferase expression differed across isoforms in H. diversicolor, while L. littorea exhibited divergent expression patterns in foot muscle and hepatopancreas. Overall, these results reinforce that diverse species likely undergo different physiological responses to metal toxicity, and more research is needed to investigate these mechanisms.
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Affiliation(s)
- Timothy S Breton
- Division of Natural Sciences, University of Maine at Farmington, 173 High Street, Farmington, ME 04938, United States of America.
| | - Nancy K Prentiss
- Division of Natural Sciences, University of Maine at Farmington, 173 High Street, Farmington, ME 04938, United States of America
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35
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Protein kinase CK2 is involved in zinc homeostasis in breast and prostate cancer cells. Biometals 2019; 32:861-873. [DOI: 10.1007/s10534-019-00218-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2019] [Accepted: 09/28/2019] [Indexed: 01/27/2023]
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Levy M, Elkoshi N, Barber-Zucker S, Hoch E, Zarivach R, Hershfinkel M, Sekler I. Zinc transporter 10 (ZnT10)-dependent extrusion of cellular Mn 2+ is driven by an active Ca 2+-coupled exchange. J Biol Chem 2019; 294:5879-5889. [PMID: 30755481 DOI: 10.1074/jbc.ra118.006816] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2018] [Revised: 01/30/2019] [Indexed: 01/11/2023] Open
Abstract
Manganese (Mn2+) is extruded from the cell by the zinc transporter 10 (ZnT10). Loss of ZnT10 expression caused by autosomal mutations in the ZnT10 gene leads to hypermanganesemia in multiple organs. Here, combining fluorescent monitoring of cation influx in HEK293-T cells expressing human ZnT10 with molecular modeling of ZnT10 cation selectivity, we show that ZnT10 is exploiting the transmembrane Ca2+ inward gradient for active cellular exchange of Mn2+ In analyzing ZnT10 activity we used the ability of Fura-2 to spectrally distinguish between Mn2+ and Ca2+ fluxes. We found that (a) application of Mn2+-containing Ca2+-free solution to ZnT10-expressing cells triggers an influx of Mn2+, (b) reintroduction of Ca2+ leads to cellular Mn2+ extrusion against an inward Mn2+ gradient, and (c) the cellular transport of Mn2+ by ZnT10 is coupled to a reciprocal movement of Ca2+ Remarkably, replacing a single asparagine residue in ZnT10 (Asp-43) with threonine (ZnT10 N43T) converted the Mn2+/Ca2+ exchange to an uncoupled channel mode, permeable to both Ca2+ and Mn2+ The findings in our study identify the first ion transporter that uses the Ca2+ gradient for active counter-ion exchange. They highlight a remarkable versatility in metal selectivity and mode of transport controlled by the tetrahedral metal transport site of ZnT proteins.
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Affiliation(s)
- Moshe Levy
- From the Department of Physiology and Cell Biology, Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer Sheva 8410501 Israel
| | - Nadav Elkoshi
- From the Department of Physiology and Cell Biology, Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer Sheva 8410501 Israel
| | - Shiran Barber-Zucker
- Department of Life Sciences and The National Institute for Biotechnology in the Negev and Ilse Katz Institute for Nanoscale Science and Technology, Ben-Gurion University of the Negev, Beer Sheva 8410501 Israel
| | - Eitan Hoch
- Program in Medical and Population Genetics and Metabolism Program, Broad Institute of MIT and Harvard, Cambridge, Massachusetts 02142
| | - Raz Zarivach
- Department of Life Sciences and The National Institute for Biotechnology in the Negev and Ilse Katz Institute for Nanoscale Science and Technology, Ben-Gurion University of the Negev, Beer Sheva 8410501 Israel
| | - Michal Hershfinkel
- From the Department of Physiology and Cell Biology, Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer Sheva 8410501 Israel
| | - Israel Sekler
- From the Department of Physiology and Cell Biology, Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer Sheva 8410501 Israel.
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Stevenson MJ, Uyeda KS, Harder NHO, Heffern MC. Metal-dependent hormone function: the emerging interdisciplinary field of metalloendocrinology. Metallomics 2019; 11:85-110. [PMID: 30270362 PMCID: PMC10249669 DOI: 10.1039/c8mt00221e] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2024]
Abstract
For over 100 years, there has been an incredible amount of knowledge amassed concerning hormones in the endocrine system and their central role in human health. Hormones represent a diverse group of biomolecules that are released by glands, communicate signals to their target tissue, and are regulated by feedback loops to maintain organism health. Many disease states, such as diabetes and reproductive disorders, stem from misregulation or dysfunction of hormones. Increasing research is illuminating the intricate roles of metal ions in the endocrine system where they may act advantageously in concert with hormones or deleteriously catalyze hormone-associated disease states. As the critical role of metal ions in the endocrine system becomes more apparent, it is increasingly important to untangle the complex mechanisms underlying the connections between inorganic biochemistry and hormone function to understand and control endocrinological phenomena. This tutorial review harmonizes the interdisciplinary fields of endocrinology and inorganic chemistry in the newly-termed field of "metalloendocrinology". We describe examples linking metals to both normal and aberrant hormone function with a focus on highlighting insight to molecular mechanisms. Hormone activities related to both essential metal micronutrients, such as copper, iron, zinc, and calcium, and disruptive nonessential metals, such as lead and cadmium are discussed.
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Affiliation(s)
- Michael J Stevenson
- Department of Chemistry, University of California, Davis, One Shields Avenue, Davis, CA 95616, USA.
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Paskavitz AL, Quintana J, Cangussu D, Tavera-Montañez C, Xiao Y, Ortiz-Miranda S, Navea JG, Padilla-Benavides T. Differential expression of zinc transporters accompanies the differentiation of C2C12 myoblasts. J Trace Elem Med Biol 2018; 49:27-34. [PMID: 29895369 PMCID: PMC6082398 DOI: 10.1016/j.jtemb.2018.04.024] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/04/2017] [Revised: 04/16/2018] [Accepted: 04/20/2018] [Indexed: 12/11/2022]
Abstract
Zinc transporters facilitate metal mobilization and compartmentalization, playing a key role in cellular development. Little is known about the mechanisms and pathways of Zn movement between Zn transporters and metalloproteins during myoblast differentiation. We analyzed the differential expression of ZIP and ZnT transporters during C2C12 myoblast differentiation. Zn transporters account for a transient decrease of intracellular Zn upon myogenesis induction followed by a gradual increase of Zn in myotubes. Considering the subcellular localization and function of each of the Zn transporters, our findings indicate that a fine regulation is necessary to maintain correct metal concentrations in the cytosol and subcellular compartments to avoid toxicity, maintain homeostasis, and for loading metalloproteins needed during myogenesis. This study advances our basic understanding of the complex Zn transport network during muscle differentiation.
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Affiliation(s)
- Amanda L Paskavitz
- Department of Biochemistry and Molecular Pharmacology, University of Massachusetts Medical School, 364 Plantation Street, Worcester, MA, 01605, USA; Department of Chemistry, Skidmore College, 815 North Broadway, Saratoga Springs, NY, 12866, USA
| | - Julia Quintana
- Department of Chemistry and Biochemistry, Worcester Polytechnic Institute, 100 Institute Road, Worcester, MA, 01609, USA
| | - Daniella Cangussu
- Department of Biochemistry and Molecular Pharmacology, University of Massachusetts Medical School, 364 Plantation Street, Worcester, MA, 01605, USA
| | - Cristina Tavera-Montañez
- Department of Biochemistry and Molecular Pharmacology, University of Massachusetts Medical School, 364 Plantation Street, Worcester, MA, 01605, USA; Department of Chemistry and Biochemistry, Worcester Polytechnic Institute, 100 Institute Road, Worcester, MA, 01609, USA
| | - Yao Xiao
- Department of Chemistry, Skidmore College, 815 North Broadway, Saratoga Springs, NY, 12866, USA
| | - Sonia Ortiz-Miranda
- Department of Neurobiology, University of Massachusetts Medical School, 364 Plantation Street, Worcester, MA, 01605, USA
| | - Juan G Navea
- Department of Chemistry, Skidmore College, 815 North Broadway, Saratoga Springs, NY, 12866, USA
| | - Teresita Padilla-Benavides
- Department of Biochemistry and Molecular Pharmacology, University of Massachusetts Medical School, 364 Plantation Street, Worcester, MA, 01605, USA.
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Sirabella R, Valsecchi V, Anzilotti S, Cuomo O, Vinciguerra A, Cepparulo P, Brancaccio P, Guida N, Blondeau N, Canzoniero LMT, Franco C, Amoroso S, Annunziato L, Pignataro G. Ionic Homeostasis Maintenance in ALS: Focus on New Therapeutic Targets. Front Neurosci 2018; 12:510. [PMID: 30131665 PMCID: PMC6090999 DOI: 10.3389/fnins.2018.00510] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2018] [Accepted: 07/05/2018] [Indexed: 01/01/2023] Open
Abstract
Amyotrophic lateral sclerosis (ALS) is one of the most threatening neurodegenerative disease since it causes muscular paralysis for the loss of Motor Neurons in the spinal cord, brainstem and motor cortex. Up until now, no effective pharmacological treatment is available. Two forms of ALS have been described so far: 90% of the cases presents the sporadic form (sALS) whereas the remaining 10% of the cases displays the familiar form (fALS). Approximately 20% of fALS is associated with inherited mutations in the Cu, Zn-superoxide dismutase 1 (SOD1) gene. In the last decade, ionic homeostasis dysregulation has been proposed as the main trigger of the pathological cascade that brings to motor-neurons loss. In the light of these premises, the present review will analyze the involvement in ALS pathophysiology of the most well studied metal ions, i.e., calcium, sodium, iron, copper and zinc, with particular focus to the role of ionic channels and transporters able to contribute in the regulation of ionic homeostasis, in order to propose new putative molecular targets for future therapeutic strategies to ameliorate the progression of this devastating neurodegenerative disease.
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Affiliation(s)
- Rossana Sirabella
- Division of Pharmacology, Department of Neuroscience, School of Medicine, University of Naples Federico II, Naples, Italy.,Centre National de la Recherche Scientifique, Institut de Pharmacologie Moléculaire et Cellulaire, Université Côte d'Azur, Valbonne, France
| | - Valeria Valsecchi
- Division of Pharmacology, Department of Neuroscience, School of Medicine, University of Naples Federico II, Naples, Italy
| | | | - Ornella Cuomo
- Division of Pharmacology, Department of Neuroscience, School of Medicine, University of Naples Federico II, Naples, Italy
| | - Antonio Vinciguerra
- Division of Pharmacology, Department of Neuroscience, School of Medicine, University of Naples Federico II, Naples, Italy
| | - Pasquale Cepparulo
- Division of Pharmacology, Department of Neuroscience, School of Medicine, University of Naples Federico II, Naples, Italy
| | - Paola Brancaccio
- Division of Pharmacology, Department of Neuroscience, School of Medicine, University of Naples Federico II, Naples, Italy
| | | | - Nicolas Blondeau
- Centre National de la Recherche Scientifique, Institut de Pharmacologie Moléculaire et Cellulaire, Université Côte d'Azur, Valbonne, France
| | - Lorella M T Canzoniero
- Division of Pharmacology, Department of Science and Technology, University of Sannio, Benevento, Italy
| | - Cristina Franco
- Division of Pharmacology, Department of Science and Technology, University of Sannio, Benevento, Italy
| | - Salvatore Amoroso
- Department of Neuroscience, Università Politecnica delle Marche, Ancona, Italy
| | | | - Giuseppe Pignataro
- Division of Pharmacology, Department of Neuroscience, School of Medicine, University of Naples Federico II, Naples, Italy
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Wall RJ, Moniz S, Thomas MG, Norval S, Ko EJ, Marco M, Miles TJ, Gilbert IH, Horn D, Fairlamb AH, Wyllie S. Antitrypanosomal 8-Hydroxy-Naphthyridines Are Chelators of Divalent Transition Metals. Antimicrob Agents Chemother 2018; 62:e00235-18. [PMID: 29844044 PMCID: PMC6105827 DOI: 10.1128/aac.00235-18;e00235-18] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2018] [Accepted: 05/18/2018] [Indexed: 08/22/2023] Open
Abstract
The lack of information regarding the mechanisms of action (MoA) or specific molecular targets of phenotypically active compounds can prove a barrier to their development as chemotherapeutic agents. Here, we report the results of our orthogonal genetic, molecular, and biochemical studies to determine the MoA of a novel 7-substituted 8-hydroxy-1,6-naphthyridine (8-HNT) series that displays promising activity against Trypanosoma brucei and Leishmania donovani High-throughput loss-of-function genetic screens in T. brucei highlighted two probable zinc transporters associated with resistance to these compounds. These transporters localized to the parasite Golgi apparatus. Directed by these findings, the role of zinc and other divalent cations in the MoA of these compounds was investigated. 8-HNT compounds were found to directly deplete intracellular levels of Zn2+, while the addition of exogenous Zn2+ and Fe2+ reduced the potency of compounds from this series. Detailed biochemical analyses confirmed that 8-HNT compounds bind directly to a number of divalent cations, predominantly Zn2+, Fe2+, and Cu2+, forming 2:1 complexes with one of these cations. Collectively, our studies demonstrate transition metal depletion, due to chelation, as the MoA of the 8-HNT series of compounds. Strategies to improve the selectivity of 8-HNT compounds are discussed.
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Affiliation(s)
- Richard J Wall
- Wellcome Trust Centre for Anti-Infectives Research, Division of Biological Chemistry and Drug Discovery, School of Life Sciences, University of Dundee, Dundee, United Kingdom
| | - Sonia Moniz
- Wellcome Trust Centre for Anti-Infectives Research, Division of Biological Chemistry and Drug Discovery, School of Life Sciences, University of Dundee, Dundee, United Kingdom
| | - Michael G Thomas
- Wellcome Trust Centre for Anti-Infectives Research, Division of Biological Chemistry and Drug Discovery, School of Life Sciences, University of Dundee, Dundee, United Kingdom
| | - Suzanne Norval
- Wellcome Trust Centre for Anti-Infectives Research, Division of Biological Chemistry and Drug Discovery, School of Life Sciences, University of Dundee, Dundee, United Kingdom
| | - Eun-Jung Ko
- Wellcome Trust Centre for Anti-Infectives Research, Division of Biological Chemistry and Drug Discovery, School of Life Sciences, University of Dundee, Dundee, United Kingdom
| | - Maria Marco
- Diseases of the Developing World, GlaxoSmithKline, Madrid, Spain
| | - Timothy J Miles
- Diseases of the Developing World, GlaxoSmithKline, Madrid, Spain
| | - Ian H Gilbert
- Wellcome Trust Centre for Anti-Infectives Research, Division of Biological Chemistry and Drug Discovery, School of Life Sciences, University of Dundee, Dundee, United Kingdom
| | - David Horn
- Wellcome Trust Centre for Anti-Infectives Research, Division of Biological Chemistry and Drug Discovery, School of Life Sciences, University of Dundee, Dundee, United Kingdom
| | - Alan H Fairlamb
- Wellcome Trust Centre for Anti-Infectives Research, Division of Biological Chemistry and Drug Discovery, School of Life Sciences, University of Dundee, Dundee, United Kingdom
| | - Susan Wyllie
- Wellcome Trust Centre for Anti-Infectives Research, Division of Biological Chemistry and Drug Discovery, School of Life Sciences, University of Dundee, Dundee, United Kingdom
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41
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Antitrypanosomal 8-Hydroxy-Naphthyridines Are Chelators of Divalent Transition Metals. Antimicrob Agents Chemother 2018; 62:AAC.00235-18. [PMID: 29844044 PMCID: PMC6105827 DOI: 10.1128/aac.00235-18] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2018] [Accepted: 05/18/2018] [Indexed: 12/25/2022] Open
Abstract
The lack of information regarding the mechanisms of action (MoA) or specific molecular targets of phenotypically active compounds can prove a barrier to their development as chemotherapeutic agents. Here, we report the results of our orthogonal genetic, molecular, and biochemical studies to determine the MoA of a novel 7-substituted 8-hydroxy-1,6-naphthyridine (8-HNT) series that displays promising activity against Trypanosoma brucei and Leishmania donovani High-throughput loss-of-function genetic screens in T. brucei highlighted two probable zinc transporters associated with resistance to these compounds. These transporters localized to the parasite Golgi apparatus. Directed by these findings, the role of zinc and other divalent cations in the MoA of these compounds was investigated. 8-HNT compounds were found to directly deplete intracellular levels of Zn2+, while the addition of exogenous Zn2+ and Fe2+ reduced the potency of compounds from this series. Detailed biochemical analyses confirmed that 8-HNT compounds bind directly to a number of divalent cations, predominantly Zn2+, Fe2+, and Cu2+, forming 2:1 complexes with one of these cations. Collectively, our studies demonstrate transition metal depletion, due to chelation, as the MoA of the 8-HNT series of compounds. Strategies to improve the selectivity of 8-HNT compounds are discussed.
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42
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Oggiano R, Solinas G, Forte G, Bocca B, Farace C, Pisano A, Sotgiu MA, Clemente S, Malaguarnera M, Fois AG, Pirina P, Montella A, Madeddu R. Trace elements in ALS patients and their relationships with clinical severity. CHEMOSPHERE 2018; 197:457-466. [PMID: 29366958 DOI: 10.1016/j.chemosphere.2018.01.076] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/07/2017] [Revised: 01/06/2018] [Accepted: 01/15/2018] [Indexed: 06/07/2023]
Abstract
An exploratory study of trace elements in ALS and their relationships with clinical severity was detected. Amyotrophic lateral sclerosis (ALS) is a neurodegenerative disorder that causes irreversible damage in humans, with the consequent loss of function of motoneurons (MNs), with a prognosis up to 5 years after diagnosis. Except to genetic rare cases it is not known the etiology of the disorder. Aim of our research is to investigate the possible role of heavy metals in the severity of the disease. In this study, by the use of plasma mass (ICP-MS), we have analyzed the content of essential and heavy metals such: Pb, Cd, Al, Hg, Mn, Fe, Cu, Zn, Se, Mg, and Ca, in blood, urine and hair of ALS patients and controls; moreover we divided the patients in two groups for disease severity and analyzed the difference among the groups, in order to study a possible involvement of metals in the severity of the damage. Our results suggest a protective role of Selenium, involved in protective antioxidant mechanisms, and a risk factor in the case of presence of Lead in blood. The levels of the other metals are not easy to interpret, because these may be due to life style and for essential metals a consequence of the disease condition, not a cause.
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Affiliation(s)
- Riccardo Oggiano
- Department of Biomedical Sciences - Histology, University of Sassari, Sassari, Italy
| | - Giuliana Solinas
- Department of Biomedical Sciences - Hygiene, University of Sassari, Sassari, Italy
| | - Giovanni Forte
- Department of Environment and Health, Istituto Superiore di Sanità, Rome, Italy
| | - Beatrice Bocca
- Department of Environment and Health, Istituto Superiore di Sanità, Rome, Italy
| | - Cristiano Farace
- Department of Biomedical Sciences - Histology, University of Sassari, Sassari, Italy
| | - Andrea Pisano
- Department of Biomedical Sciences - Histology, University of Sassari, Sassari, Italy
| | | | | | - Michele Malaguarnera
- Department of Medical and Pediatric Science, Research Centre "The Great Senescence", University of Catania, Catania, Italy
| | - Alessandro Giuseppe Fois
- Department of Clinical and Experimental Medicine - Institute of Respiratory Diseases, University of Sassari, Sassari, Italy
| | - Pietro Pirina
- Department of Clinical and Experimental Medicine - Institute of Respiratory Diseases, University of Sassari, Sassari, Italy
| | - Andrea Montella
- Department of Biomedical Sciences- Human Anatomy, University of Sassari, Sassari, Italy
| | - Roberto Madeddu
- Department of Biomedical Sciences - Histology, University of Sassari, Sassari, Italy; National Institute of Biostructures and Biosystems, Rome, Italy.
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43
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Barysheva ES. Experimental Simulation of the Effects of Essential and Toxic Trace Elements on Thyroid Function. Bull Exp Biol Med 2018; 164:439-441. [DOI: 10.1007/s10517-018-4007-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2016] [Indexed: 10/17/2022]
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44
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Huang C, Cui X, Sun X, Yang J, Li M. Zinc transporters are differentially expressed in human non-small cell lung cancer. Oncotarget 2018; 7:66935-66943. [PMID: 27611948 PMCID: PMC5341848 DOI: 10.18632/oncotarget.11884] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2016] [Accepted: 08/26/2016] [Indexed: 02/07/2023] Open
Abstract
Lung cancer is one of the most common human malignancies worldwide, but its oncogenesis process remains unclear. Recent studies demonstrated that zinc (Zn) and Zn transporters were associated with the development and progression of human cancers. The role of Zn transporters including ZIPs and ZnTs in lung cancer, however, has never been evaluated. Thus, we aimed to investigate the expression levels of all human Zn transporters, including 14 ZIPs and 10 ZnTs, in eight different lung cancer cell lines and paired human tumor tissues. We observed great variations in ZIPs and ZnTs mRNA levels across cell lines and human lung cancer specimens. ZIPs showed a tendency to be upregulated, while ZnTs exhibited a downward expression trend. ZIP4 was overexpressed in six lung cancer cell lines and 59% (26/44) of tumor tissues, which was consistent with results from lung cancer datasets including TCGA database. Our results indicated that the dysregulation of Zn transporters may contribute to lung tumorigenesis.
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Affiliation(s)
- Cuiping Huang
- Department of Internal Medicine, College of Clinical Medicine, Hubei University of Science and Technology, Xianning, Hubei 437100, China.,The Vivian L. Smith Department of Neurosurgery, the University of Texas Medical School at Houston, Houston, TX 77030, USA
| | - Xiaobo Cui
- The Vivian L. Smith Department of Neurosurgery, the University of Texas Medical School at Houston, Houston, TX 77030, USA.,Department of Medicine, The University of Oklahoma Health Sciences Center, Oklahoma City, OK 73104, USA.,Department of Surgery, The University of Oklahoma Health Sciences Center, Oklahoma City, OK 73104, USA.,Harbin Medical University, Harbin, Heilongjiang 150081, China
| | - Xiaotian Sun
- The Vivian L. Smith Department of Neurosurgery, the University of Texas Medical School at Houston, Houston, TX 77030, USA.,Department of Medicine, The University of Oklahoma Health Sciences Center, Oklahoma City, OK 73104, USA.,Department of Surgery, The University of Oklahoma Health Sciences Center, Oklahoma City, OK 73104, USA.,Department of Internal Medicine, Clinic of August First Film Studio, Beijing 100161, China
| | - Jingxuan Yang
- The Vivian L. Smith Department of Neurosurgery, the University of Texas Medical School at Houston, Houston, TX 77030, USA.,Department of Medicine, The University of Oklahoma Health Sciences Center, Oklahoma City, OK 73104, USA.,Department of Surgery, The University of Oklahoma Health Sciences Center, Oklahoma City, OK 73104, USA
| | - Min Li
- The Vivian L. Smith Department of Neurosurgery, the University of Texas Medical School at Houston, Houston, TX 77030, USA.,Department of Medicine, The University of Oklahoma Health Sciences Center, Oklahoma City, OK 73104, USA.,Department of Surgery, The University of Oklahoma Health Sciences Center, Oklahoma City, OK 73104, USA
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45
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Lin W, Li D, Cheng L, Li L, Liu F, Hand NJ, Epstein JA, Rader DJ. Zinc transporter Slc39a8 is essential for cardiac ventricular compaction. J Clin Invest 2018; 128:826-833. [PMID: 29337306 PMCID: PMC5785267 DOI: 10.1172/jci96993] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2017] [Accepted: 11/21/2017] [Indexed: 01/16/2023] Open
Abstract
Isolated left ventricular noncompaction (LVNC) results from excessive trabeculation and impaired myocardial compaction during heart development. The extracellular matrix (ECM) that separates endocardium from myocardium plays a critical but poorly understood role in ventricular trabeculation and compaction. In an attempt to characterize solute carrier family 39 member 8-null (Slc39a8-null) mice, we discovered that homozygous null embryos do not survive embryogenesis and exhibit a cardiac phenotype similar to human LVNC. Slc39a8 encodes a divalent metal cation importer that has been implicated in ECM degradation through the zinc/metal regulatory transcription factor 1 (Zn/MTF1) axis, which promotes the expression of ECM-degrading enzymes, including Adamts metalloproteinases. Here, we have shown that Slc39a8 is expressed by endothelial cells in the developing mouse heart, where it serves to maintain cellular Zn levels. Furthermore, Slc39a8-null hearts exhibited marked ECM accumulation and reduction of several Adamts metalloproteinases. Consistent with the in vivo observations, knockdown of SLC39A8 in HUVECs decreased ADAMTS1 transcription by decreasing cellular Zn uptake and, as a result, MTF1 transcriptional activity. Our study thus identifies a gene underlying ventricular trabeculation and compaction development, and a pathway regulating ECM during myocardial morphogenesis.
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Affiliation(s)
| | - Deqiang Li
- Department of Cell and Developmental Biology, and
- Penn Cardiovascular Institute, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Lan Cheng
- Penn Cardiovascular Institute, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Li Li
- Penn Cardiovascular Institute, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Feiyan Liu
- Department of Cell and Developmental Biology, and
- Penn Cardiovascular Institute, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | | | - Jonathan A. Epstein
- Department of Cell and Developmental Biology, and
- Penn Cardiovascular Institute, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Daniel J. Rader
- Department of Genetics
- Penn Cardiovascular Institute, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
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46
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Hershfinkel M. The Zinc Sensing Receptor, ZnR/GPR39, in Health and Disease. Int J Mol Sci 2018; 19:ijms19020439. [PMID: 29389900 PMCID: PMC5855661 DOI: 10.3390/ijms19020439] [Citation(s) in RCA: 73] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2018] [Revised: 01/24/2018] [Accepted: 01/29/2018] [Indexed: 02/07/2023] Open
Abstract
A distinct G-protein coupled receptor that senses changes in extracellular Zn2+, ZnR/GPR39, was found in cells from tissues in which Zn2+ plays a physiological role. Most prominently, ZnR/GPR39 activity was described in prostate cancer, skin keratinocytes, and colon epithelial cells, where zinc is essential for cell growth, wound closure, and barrier formation. ZnR/GPR39 activity was also described in neurons that are postsynaptic to vesicular Zn2+ release. Activation of ZnR/GPR39 triggers Gαq-dependent signaling and subsequent cellular pathways associated with cell growth and survival. Furthermore, ZnR/GPR39 was shown to regulate the activity of ion transport mechanisms that are essential for the physiological function of epithelial and neuronal cells. Thus, ZnR/GPR39 provides a unique target for therapeutically modifying the actions of zinc in a specific and selective manner.
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Affiliation(s)
- Michal Hershfinkel
- Department of Physiology and Cell Biology and The Zlotowski Center for Neuroscience, Faculty of Health Sciences, POB 653, Ben-Gurion Ave. Ben-Gurion University of the Negev, Beer Sheva 84105, Israel.
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47
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Zinc Protects Oxidative Stress-Induced RPE Death by Reducing Mitochondrial Damage and Preventing Lysosome Rupture. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2017; 2017:6926485. [PMID: 29348791 PMCID: PMC5733978 DOI: 10.1155/2017/6926485] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/21/2017] [Revised: 10/02/2017] [Accepted: 10/03/2017] [Indexed: 11/30/2022]
Abstract
Zinc deficiency is known to increase the risk of the development of age-related macular degeneration (AMD), although the underlying mechanism remains poorly defined. In this study, we investigated the effect of zinc on retinal pigment epithelium (RPE) survival and function under oxidative conditions. Zinc level was 5.4 μM in normal culture conditions (DMEM/F12 with 10% FCS) and 1.5 μM in serum-free medium (DMEM/F12). Under serum-free culture conditions, the treatment of RPE cells with oxidized photoreceptor outer segment (oxPOS) significantly increased intracellular ROS production, reduced ATP production, and promoted RPE death compared to oxPOS-treated RPE under normal culture condition. Serum deprivation also reduced RPE phagocytosis of oxPOS and exacerbated oxidative insult-induced cathepsin B release from lysosome, an indicator of lysosome rupture. The addition of zinc in the serum-free culture system dose dependently reduced ROS production, recovered ATP production, and reduced oxidative stress- (oxPOS- or 4-HNE) induced cell death. Zinc supplementation also reduced oxidative stress-mediated cathepsin B release in RPE cells. Our results suggest that zinc deficiency sensitizes RPE cells to oxidative damage, and zinc supplementation protects RPE cells from oxidative stress-induced death by improving mitochondrial function and preventing lysosome rupture.
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48
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Turan B, Tuncay E. Impact of Labile Zinc on Heart Function: From Physiology to Pathophysiology. Int J Mol Sci 2017; 18:ijms18112395. [PMID: 29137144 PMCID: PMC5713363 DOI: 10.3390/ijms18112395] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2017] [Revised: 11/02/2017] [Accepted: 11/08/2017] [Indexed: 12/15/2022] Open
Abstract
Zinc plays an important role in biological systems as bound and histochemically reactive labile Zn2+. Although Zn2+ concentration is in the nM range in cardiomyocytes at rest and increases dramatically under stimulation, very little is known about precise mechanisms controlling the intracellular distribution of Zn2+ and its variations during cardiac function. Recent studies are focused on molecular and cellular aspects of labile Zn2+ and its homeostasis in mammalian cells and growing evidence clarified the molecular mechanisms underlying Zn2+-diverse functions in the heart, leading to the discovery of novel physiological functions of labile Zn2+ in parallel to the discovery of subcellular localization of Zn2+-transporters in cardiomyocytes. Additionally, important experimental data suggest a central role of intracellular labile Zn2+ in excitation-contraction coupling in cardiomyocytes by shaping Ca2+ dynamics. Cellular labile Zn2+ is tightly regulated against its adverse effects through either Zn2+-transporters, Zn2+-binding molecules or Zn2+-sensors, and, therefore plays a critical role in cellular signaling pathways. The present review summarizes the current understanding of the physiological role of cellular labile Zn2+ distribution in cardiomyocytes and how a remodeling of cellular Zn2+-homeostasis can be important in proper cell function with Zn2+-transporters under hyperglycemia. We also emphasize the recent investigations on Zn2+-transporter functions from the standpoint of human heart health to diseases together with their clinical interest as target proteins in the heart under pathological condition, such as diabetes.
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Affiliation(s)
- Belma Turan
- Department of Biophysics, Ankara University, Faculty of Medicine, 06100 Ankara, Turkey.
| | - Erkan Tuncay
- Department of Biophysics, Ankara University, Faculty of Medicine, 06100 Ankara, Turkey.
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49
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Zinc Potentiates Lipopolysaccharide-induced Nitric Oxide Production in Cultured Primary Rat Astrocytes. Neurochem Res 2017; 43:363-374. [DOI: 10.1007/s11064-017-2431-5] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2017] [Revised: 10/04/2017] [Accepted: 11/01/2017] [Indexed: 01/28/2023]
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50
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Luo L, Zhang Q, Kong X, Huang H, You W, Ke C. Differential effects of zinc exposure on male and female oysters (Crassostrea angulata) as revealed by label-free quantitative proteomics. ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY 2017; 36:2602-2613. [PMID: 28304108 DOI: 10.1002/etc.3797] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/03/2017] [Revised: 02/01/2017] [Accepted: 03/15/2017] [Indexed: 06/06/2023]
Abstract
Oysters accumulate Zn as an adaptation to Zn exposure; however, it is not known whether male and female oysters respond differently to Zn exposure. Proteomic and real-time polymerase chain reaction analyses were used to investigate differential responses of male and female oysters (Crassostrea angulata) to Zn exposure. After exposure to 50 μg L-1 or 500 μg L-1 Zn for 30 d, gonads of female oysters accumulated more Zn than those of males, and gonadal development was accelerated in females but was abnormal in males. Differentially expressed proteins after exposure to Zn were identified and shown to function in Zn transport, Ca transport, phosphate metabolism, energy metabolism, immune regulation, oxidative stress responses, gene expression regulation, and fat metabolism. Proteins with functions in Zn transportation and storage, and multifunctional proteins, such as hemicentin-1 and histidinol dehydrogenase, were expressed at significantly higher levels in the gonads of female than male oysters after Zn exposure. Environ Toxicol Chem 2017;36:2602-2613. © 2017 SETAC.
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Affiliation(s)
- Lianzhong Luo
- Xiamen Key Laboratory of Marine Medicinal Natural Products and Cell Engineering, Xiamen Medical College, Xiamen, People's Republic of China
- State Key Laboratory of Marine Environmental Science, Xiamen University, Xiamen, People's Republic of China
| | - Qinghong Zhang
- State Key Laboratory of Marine Environmental Science, Xiamen University, Xiamen, People's Republic of China
- School of Life Science, Xiamen University, Xiamen, People's Republic of China
| | - Xue Kong
- State Key Laboratory of Marine Environmental Science, Xiamen University, Xiamen, People's Republic of China
- School of Life Science, Xiamen University, Xiamen, People's Republic of China
| | - Heqing Huang
- State Key Laboratory of Marine Environmental Science, Xiamen University, Xiamen, People's Republic of China
- School of Life Science, Xiamen University, Xiamen, People's Republic of China
| | - Weiwei You
- State Key Laboratory of Marine Environmental Science, Xiamen University, Xiamen, People's Republic of China
- College of Ocean and Earth Sciences, Xiamen University, Xiamen, People's Republic of China
| | - Caihuan Ke
- State Key Laboratory of Marine Environmental Science, Xiamen University, Xiamen, People's Republic of China
- College of Ocean and Earth Sciences, Xiamen University, Xiamen, People's Republic of China
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