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Qiu N, Pechalrieu D, Abegg D, Adibekian A. Chemoproteomic Profiling Maps Zinc-Dependent Cysteine Reactivity. Chem Res Toxicol 2024; 37:620-632. [PMID: 38484110 DOI: 10.1021/acs.chemrestox.3c00416] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/16/2024]
Abstract
As a vital micronutrient, zinc is integral to the structure, function, and signaling networks of diverse proteins. Dysregulated zinc levels, due to either excess intake or deficiency, are associated with a spectrum of health disorders. In this context, understanding zinc-regulated biological processes at the molecular level holds significant relevance to public health and clinical practice. Identifying and characterizing zinc-regulated proteins in their diverse proteoforms, however, remain a difficult task in advancing zinc biology. Herein, we address this challenge by developing a quantitative chemical proteomics platform that globally profiles the reactivities of proteinaceous cysteines upon cellular zinc depletion. Exploiting a protein-conjugated resin for the selective removal of Zn2+ from culture media, we identify an array of zinc-sensitive cysteines on proteins with diverse functions based on their increased reactivity upon zinc depletion. Notably, we find that zinc regulates the enzymatic activities, post-translational modifications, and subcellular distributions of selected target proteins such as peroxiredoxin 6 (PRDX6), platelet-activating factor acetylhydrolase IB subunit alpha1 (PAFAH1B3), and phosphoglycerate kinase (PGK1).
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Affiliation(s)
- Nan Qiu
- Department of Chemistry, University of Illinois Chicago, 845 W Taylor St., Chicago, Illinois 60607, United States
- Skaggs Doctoral Program in the Chemical and Biological Sciences, Scripps Research, 10550 N Torrey Pines Rd, La Jolla, California 92037, United States
| | - Dany Pechalrieu
- Department of Chemistry, University of Illinois Chicago, 845 W Taylor St., Chicago, Illinois 60607, United States
| | - Daniel Abegg
- Department of Chemistry, University of Illinois Chicago, 845 W Taylor St., Chicago, Illinois 60607, United States
| | - Alexander Adibekian
- Department of Chemistry, University of Illinois Chicago, 845 W Taylor St., Chicago, Illinois 60607, United States
- Department of Pharmaceutical Sciences, University of Illinois Chicago, 833 S Wood St., Chicago, Illinois 60612, United States
- Department of Biochemistry and Molecular Genetics, University of Illinois Chicago, 900 S Ashland Ave., Chicago, Illinois 60607, United States
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2
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Kocyła AM, Czogalla A, Wessels I, Rink L, Krężel A. A combined biochemical and cellular approach reveals Zn 2+-dependent hetero- and homodimeric CD4 and Lck assemblies in T cells. Structure 2024; 32:292-303.e7. [PMID: 38157858 DOI: 10.1016/j.str.2023.11.013] [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: 07/12/2023] [Revised: 10/25/2023] [Accepted: 11/30/2023] [Indexed: 01/03/2024]
Abstract
The CD4 or CD8 co-receptors' interaction with the protein-tyrosine kinase Lck initiates the tyrosine phosphorylation cascade leading to T cell activation. A critical question is: to what extent are co-receptors and Lck coupled? Our contribution concerns Zn2+, indispensable for CD4- and CD8-Lck formation. We combined biochemical and cellular approaches to show that dynamic fluctuations of free Zn2+ in physiological ranges influence Zn(CD4)2 and Zn(CD4)(Lck) species formation and their ratio, although the same Zn(Cys)2(Cys)2 cores. Moreover, we demonstrated that the affinity of Zn2+ to CD4 and CD4-Lck species differs significantly. Increased intracellular free Zn2+ concentration in T cells causes higher CD4 partitioning in the plasma membrane. We additionally found that CD4 palmitoylation decreases the specificity of CD4-Lck formation in the reconstituted membrane model. Our findings help elucidate co-receptor-Lck coupling stoichiometry and demonstrate that intracellular free Zn2+ has a major role in the interplay between CD4 dimers and CD4-Lck assembly.
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Affiliation(s)
- Anna M Kocyła
- Department of Chemical Biology, Faculty of Biotechnology, University of Wroclaw, 50-383 Wroclaw, Poland
| | - Aleksander Czogalla
- Department of Cytobiochemistry, Faculty of Biotechnology, University of Wroclaw, 50-383 Wroclaw, Poland
| | - Inga Wessels
- Institute of Immunology, Faculty of Medicine, RWTH Aachen University, 52074 Aachen, Germany
| | - Lothar Rink
- Institute of Immunology, Faculty of Medicine, RWTH Aachen University, 52074 Aachen, Germany
| | - Artur Krężel
- Department of Chemical Biology, Faculty of Biotechnology, University of Wroclaw, 50-383 Wroclaw, Poland.
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3
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Hung YH, Kim Y, Mitchell SB, Thorn TL, Aydemir TB. Absence of Slc39a14/Zip14 in mouse pancreatic beta cells results in hyperinsulinemia. Am J Physiol Endocrinol Metab 2024; 326:E92-E105. [PMID: 38019082 PMCID: PMC11193513 DOI: 10.1152/ajpendo.00117.2023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/19/2023] [Revised: 11/20/2023] [Accepted: 11/21/2023] [Indexed: 11/30/2023]
Abstract
Zinc is an essential component of the insulin protein complex synthesized in β cells. The intracellular compartmentalization and distribution of zinc are controlled by 24 transmembrane zinc transporters belonging to the ZnT or Zrt/Irt-like protein (ZIP) family. Downregulation of SLC39A14/ZIP14 has been reported in pancreatic islets of patients with type 2 diabetes (T2D) as well as mouse models of high-fat diet (HFD)- or db/db-induced obesity. Our previous studies observed mild hyperinsulinemia in mice with whole body knockout of Slc39a14 (Zip14 KO). Based on our current secondary data analysis from an integrative single-cell RNA-seq dataset of human whole pancreatic tissue, SLC39A14 (coding ZIP14) is the only other zinc transporter expressed abundantly in human β cells besides well-known zinc transporter SLC30A8 (coding ZnT8). In the present work, using pancreatic β cell-specific knockout of Slc39a14 (β-Zip14 KO), we investigated the role of SLC39A14/ZIP14-mediated intracellular zinc trafficking in glucose-stimulated insulin secretion and subsequent metabolic responses. Glucose-stimulated insulin secretion, zinc concentrations, and cellular localization of ZIP14 were assessed using in vivo, ex vivo, and in vitro assays using β-Zip14 KO, isolated islets, and murine cell line MIN6. Metabolic evaluations were done on both chow- and HFD-fed mice using time-domain nuclear magnetic resonance and a comprehensive laboratory animal monitoring system. ZIP14 localizes on the endoplasmic reticulum regulating intracellular zinc trafficking in β cells and serves as a negative regulator of glucose-stimulated insulin secretion. Deletion of Zip14 resulted in greater glucose-stimulated insulin secretion, increased energy expenditure, and shifted energy metabolism toward fatty acid utilization. HFD caused β-Zip14 KO mice to develop greater islet hyperplasia, compensatory hyperinsulinemia, and mild insulin resistance and hyperglycemia. This study provided new insights into the contribution of metal transporter ZIP14-mediated intracellular zinc trafficking in glucose-stimulated insulin secretion and subsequent metabolic responses.NEW & NOTEWORTHY Metal transporter SLC39A14/ZIP14 is downregulated in pancreatic islets of patients with T2D and mouse models of HFD- or db/db-induced obesity. However, the function of ZIP14-mediated intracellular zinc trafficking in β cells is unknown. Our analyses revealed that SLC39A14 is the only Zn transporter expressed abundantly in human β cells besides SLC30A8. Within the β cells, ZIP14 is localized on the endoplasmic reticulum and serves as a negative regulator of insulin secretion, providing a potential therapeutic target for T2D.
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Affiliation(s)
- Yu-Han Hung
- Division of Nutritional Sciences, Cornell University, Ithaca, New York, United States
- Department of College of Veterinary Medicine, Cornell University, Ithaca, New York, United States
| | - Yongeun Kim
- Division of Nutritional Sciences, Cornell University, Ithaca, New York, United States
| | - Samuel Blake Mitchell
- Division of Nutritional Sciences, Cornell University, Ithaca, New York, United States
| | - Trista Lee Thorn
- Division of Nutritional Sciences, Cornell University, Ithaca, New York, United States
| | - Tolunay Beker Aydemir
- Division of Nutritional Sciences, Cornell University, Ithaca, New York, United States
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4
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Kumar S, Ansari S, Narayanan S, Ranjith-Kumar CT, Surjit M. Antiviral activity of zinc against hepatitis viruses: current status and future prospects. Front Microbiol 2023; 14:1218654. [PMID: 37908540 PMCID: PMC10613677 DOI: 10.3389/fmicb.2023.1218654] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2023] [Accepted: 09/28/2023] [Indexed: 11/02/2023] Open
Abstract
Viral hepatitis is a major public health concern globally. World health organization aims at eliminating viral hepatitis as a public health threat by 2030. Among the hepatitis causing viruses, hepatitis B and C are primarily transmitted via contaminated blood. Hepatitis A and E, which gets transmitted primarily via the feco-oral route, are the leading cause of acute viral hepatitis. Although vaccines are available against some of these viruses, new cases continue to be reported. There is an urgent need to devise a potent yet economical antiviral strategy against the hepatitis-causing viruses (denoted as hepatitis viruses) for achieving global elimination of viral hepatitis. Although zinc was known to mankind for a long time (since before Christ era), it was identified as an element in 1746 and its importance for human health was discovered in 1963 by the pioneering work of Dr. Ananda S. Prasad. A series of follow up studies involving zinc supplementation as a therapy demonstrated zinc as an essential element for humans, leading to establishment of a recommended dietary allowance (RDA) of 15 milligram zinc [United States RDA for zinc]. Being an essential component of many cellular enzymes and transcription factors, zinc is vital for growth and homeostasis of most living organisms, including human. Importantly, several studies indicate potent antiviral activity of zinc. Multiple studies have demonstrated antiviral activity of zinc against viruses that cause hepatitis. This article provides a comprehensive overview of the findings on antiviral activity of zinc against hepatitis viruses, discusses the mechanisms underlying the antiviral properties of zinc and summarizes the prospects of harnessing the therapeutic benefit of zinc supplementation therapy in reducing the disease burden due to viral hepatitis.
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Affiliation(s)
- Shiv Kumar
- Virology Laboratory, Centre for Virus Research, Therapeutics and Vaccines, Translational Health Science and Technology Institute, NCR Biotech Science Cluster, Faridabad, Haryana, India
| | - Shabnam Ansari
- Virology Laboratory, Centre for Virus Research, Therapeutics and Vaccines, Translational Health Science and Technology Institute, NCR Biotech Science Cluster, Faridabad, Haryana, India
| | - Sriram Narayanan
- University School of Biotechnology, Guru Gobind Singh Indraprastha University, New Delhi, India
| | - C. T. Ranjith-Kumar
- University School of Biotechnology, Guru Gobind Singh Indraprastha University, New Delhi, India
| | - Milan Surjit
- Virology Laboratory, Centre for Virus Research, Therapeutics and Vaccines, Translational Health Science and Technology Institute, NCR Biotech Science Cluster, Faridabad, Haryana, India
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Zhu B, Yang C, Liu D, Zhi Q, Hua ZC. Zinc depletion induces JNK/p38 phosphorylation and suppresses Akt/mTOR expression in acute promyelocytic NB4 cells. J Trace Elem Med Biol 2023; 79:127264. [PMID: 37473591 DOI: 10.1016/j.jtemb.2023.127264] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/14/2022] [Revised: 07/09/2023] [Accepted: 07/13/2023] [Indexed: 07/22/2023]
Abstract
BACKGROUND Myeloid leukemia is associated with reduced serum zinc and increased intracellular zinc. Our previous studies found that zinc depletion by TPEN induced apoptosis with PML-RARα oncoprotein degradation in acute promyelocytic NB4 cells. The effect of zinc homeostasis on intracellular signaling pathways in myeloid leukemia cells remains unclear. OBJECTIVE This study examined how zinc homeostasis affected MAPK and Akt/mTOR pathways in NB4 cells. METHODS We used western blotting to detect the activation of p38 MAPK, JNK, ERK1/2, and Akt/mTOR pathways in NB4 cells stimulated with the zinc chelator TPEN. Whether the effects of TPEN on these pathways could be reversed by zinc or the nitric oxide donor sodium nitroprusside (SNP) was further explored by western blotting. We used Zinpyr-1 staining to assess the role of SNP on labile zinc levels in NB4 cells treated with TPEN. In additional, we evaluated expressional correlations between the zinc-binding protein Metallothionein-2A (MT2A) and genes related to MAPKs and Akt/mTOR pathways in acute myeloid leukemia (AML) based on the TCGA database. RESULTS Zinc depletion by TPEN activated p38 and JNK phosphorylation in NB4 cells, whereas ERK1/2 phosphorylation was increased first and then decreased. The protein expression levels of Akt and mTOR were downregulated by TPEN. The nitric oxide donor SNP promotes zinc release in NB4 cells under zinc depletion conditions. We further found that the effects of zinc depletion on MAPK and Akt/mTOR pathways in NB4 cells can be reversed by exogenous zinc supplementation or treatment with the nitric oxide donor SNP. By bioinformatics analyses based on the TCGA database, we demonstrated that MT2A expression was negatively correlated with the expression of JNK, and was positively correlated with the expression of ERK1 and Akt in AML. CONCLUSION Our findings indicate that zinc plays a critical role in leukemia cells and help understanding how zinc depletion induces apoptosis.
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Affiliation(s)
- Bo Zhu
- School of Biopharmacy, China Pharmaceutical University, Nanjing 211198, PR China.
| | - Chunhao Yang
- School of Biopharmacy, China Pharmaceutical University, Nanjing 211198, PR China
| | - Dekang Liu
- School of Medicine, and Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing 210023, PR China
| | - Qi Zhi
- School of Medicine, and Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing 210023, PR China
| | - Zi-Chun Hua
- School of Biopharmacy, China Pharmaceutical University, Nanjing 211198, PR China; State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, Nanjing 210023, PR China.
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6
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Zinc in Human Health and Infectious Diseases. Biomolecules 2022; 12:biom12121748. [PMID: 36551176 PMCID: PMC9775844 DOI: 10.3390/biom12121748] [Citation(s) in RCA: 27] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2022] [Revised: 11/22/2022] [Accepted: 11/23/2022] [Indexed: 11/27/2022] Open
Abstract
During the last few decades, the micronutrient zinc has proven to be an important metal ion for a well-functioning immune system, and thus also for a suitable immune defense. Nowadays, it is known that the main cause of zinc deficiency is malnutrition. In particular, vulnerable populations, such as the elderly in Western countries and children in developing countries, are often affected. However, sufficient zinc intake and homeostasis is essential for a healthy life, as it is known that zinc deficiency is associated with a multitude of immune disorders such as metabolic and chronic diseases, as well as infectious diseases such as respiratory infections, malaria, HIV, or tuberculosis. Moreover, the modulation of the proinflammatory immune response and oxidative stress is well described. The anti-inflammatory and antioxidant properties of zinc have been known for a long time, but are not comprehensively researched and understood yet. Therefore, this review highlights the current molecular mechanisms underlying the development of a pro-/ and anti-inflammatory immune response as a result of zinc deficiency and zinc supplementation. Additionally, we emphasize the potential of zinc as a preventive and therapeutic agent, alone or in combination with other strategies, that could ameliorate infectious diseases.
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Chen YY, Chen S, Ok K, Duncan FE, O’Halloran TV, Woodruff TK. Zinc dynamics regulate early ovarian follicle development. J Biol Chem 2022; 299:102731. [PMID: 36423685 PMCID: PMC9800340 DOI: 10.1016/j.jbc.2022.102731] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2022] [Revised: 10/19/2022] [Accepted: 11/09/2022] [Indexed: 11/23/2022] Open
Abstract
Zinc fluctuations regulate key steps in late oocyte and preimplantation embryo development; however, roles for zinc in preceding stages in early ovarian follicle development, when cooperative interactions exist between the oocyte and somatic cells, are unknown. To understand the roles of zinc during early follicle development, we applied single cell X-ray fluorescence microscopy, a radioactive zinc tracer, and a labile zinc probe to measure zinc in individual mouse oocytes and associated somatic cells within early follicles. Here, we report a significant stage-specific increase and compartmental redistribution in oocyte zinc content upon the initiation of early follicle growth. The increase in zinc correlates with the increased expression of specific zinc transporters, including two that are essential in oocyte maturation. While oocytes in follicles exhibit high tolerance to pronounced changes in zinc availability, somatic survival and proliferation are significantly more sensitive to zinc chelation or supplementation. Finally, transcriptomic, proteomic, and zinc loading analyses reveal enrichment of zinc targets in the ubiquitination pathway. Overall, these results demonstrate that distinct cell type-specific zinc regulations are required for follicle growth and indicate that physiological fluctuation in the localization and availability of this inorganic cofactor has fundamental functions in early gamete development.
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Affiliation(s)
- Yu-Ying Chen
- Department of Obstetrics and Gynecology, Feinberg School of Medicine, Northwestern University, Chicago, Illinois, USA
| | - Si Chen
- X-ray Science Division, Argonne National Laboratory, Lemont, Illinois, USA
| | - Kiwon Ok
- Department of Microbiology and Molecular Genetics, Michigan State University, East Lansing, Michigan, USA
| | - Francesca E. Duncan
- Department of Obstetrics and Gynecology, Feinberg School of Medicine, Northwestern University, Chicago, Illinois, USA
| | - Thomas V. O’Halloran
- Department of Microbiology and Molecular Genetics, Michigan State University, East Lansing, Michigan, USA,Department of Chemistry, Michigan State University, East Lansing, Michigan, USA,Department of Chemistry, Northwestern University, Evanston, Illinois, USA,The Chemistry of Life Processes Institute, Northwestern University, Evanston, Illinois, USA,For correspondence: Thomas V. O’Halloran; Teresa K. Woodruff
| | - Teresa K. Woodruff
- Department of Obstetrics and Gynecology, Michigan State University, East Lansing, Michigan, USA,For correspondence: Thomas V. O’Halloran; Teresa K. Woodruff
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Ramavath HN, Chandra Mashurabad P, Yaduvanshi PS, Veleri S, Sharp PA, Pullakhandam R. Zinc induces hephaestin expression via a PI3K-CDX2 dependent mechanism to regulate iron transport in intestinal Caco-2 cells. Biochem Biophys Res Commun 2022; 626:1-7. [DOI: 10.1016/j.bbrc.2022.07.053] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2022] [Revised: 07/11/2022] [Accepted: 07/14/2022] [Indexed: 11/16/2022]
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9
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Ye C, Lian G, Wang T, Chen A, Chen W, Gong J, Luo L, Wang H, Xie L. The zinc transporter ZIP12 regulates monocrotaline-induced proliferation and migration of pulmonary arterial smooth muscle cells via the AKT/ERK signaling pathways. BMC Pulm Med 2022; 22:111. [PMID: 35346134 PMCID: PMC8962172 DOI: 10.1186/s12890-022-01905-3] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2022] [Accepted: 03/17/2022] [Indexed: 01/05/2024] Open
Abstract
Background The zinc transporter ZIP12 is a membrane-spanning protein that transports zinc ions into the cytoplasm from the extracellular space. Recent studies demonstrated that upregulation of ZIP12 is involved in elevation of cytosolic free zinc and excessive proliferation of pulmonary arterial smooth muscle cells (PASMCs) induced by hypoxia. However, the expression of ZIP12 and its role in pulmonary arterial hypertension (PAH) induced by monocrotaline (MCT) in rats have not been evaluated previously. The aim of this study was to investigate the effect of ZIP12 on the proliferation and migration of PASMCs and its underlying mechanisms in MCT-induced PAH. Methods A PAH rat model was generated by intraperitoneal injection of 20 mg/kg MCT twice at one-week intervals. PASMCs were isolated from the pulmonary arteries of rats with MCT-induced PAH or control rats. The expression of ZIP12 and related molecules was detected in the lung tissues and cells. A ZIP12 knockdown lentivirus and an overexpressing lentivirus were constructed and transfected into PASMCs derived from PAH and control rats, respectively. EdU assays, wound healing assays and Western blotting were carried out to explore the function of ZIP12 in PASMCs. Results Increased ZIP12 expression was observed in PASMCs derived from MCT-induced PAH rats. The proliferation and migration of PASMCs from PAH rats were significantly increased compared with those from control rats. These results were corroborated by Western blot analysis of PCNA and cyclin D1. All these effects were significantly reversed by silencing ZIP12. Comparatively, ZIP12 overexpression resulted in the opposite effects as shown in PASMCs from control rats. Furthermore, selective inhibition of AKT phosphorylation by LY294002 abolished the effect of ZIP12 overexpression on enhancing cell proliferation and migration and partially suppressed the increase in ERK1/2 phosphorylation induced by ZIP12 overexpression. However, inhibition of ERK activity by U0126 resulted in partial reversal of this effect and did not influence an increase in AKT phosphorylation induced by ZIP12 overexpression. Conclusions ZIP12 is involved in MCT-induced pulmonary vascular remodeling and enhances the proliferation and migration of PASMCs. The mechanism of these effects was partially mediated by enhancing the AKT/ERK signaling pathways. Supplementary Information The online version contains supplementary material available at 10.1186/s12890-022-01905-3.
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Affiliation(s)
- Chaoyi Ye
- Department of Geriatrics, The First Affiliated Hospital of Fujian Medical University, 20 Chazhong Road, Fuzhou, 350005, Fujian, People's Republic of China.,Department of General Medicine, The First Affiliated Hospital of Fujian Medical University, Fuzhou, People's Republic of China.,Fujian Hypertension Research Institute, The First Affiliated Hospital of Fujian Medical University, Fuzhou, People's Republic of China
| | - Guili Lian
- Fujian Hypertension Research Institute, The First Affiliated Hospital of Fujian Medical University, Fuzhou, People's Republic of China
| | - Tingjun Wang
- Department of Geriatrics, The First Affiliated Hospital of Fujian Medical University, 20 Chazhong Road, Fuzhou, 350005, Fujian, People's Republic of China.,Department of General Medicine, The First Affiliated Hospital of Fujian Medical University, Fuzhou, People's Republic of China.,Fujian Hypertension Research Institute, The First Affiliated Hospital of Fujian Medical University, Fuzhou, People's Republic of China
| | - Ai Chen
- Fujian Hypertension Research Institute, The First Affiliated Hospital of Fujian Medical University, Fuzhou, People's Republic of China
| | - Weixiao Chen
- Fujian Hypertension Research Institute, The First Affiliated Hospital of Fujian Medical University, Fuzhou, People's Republic of China
| | - Jin Gong
- Department of Geriatrics, The First Affiliated Hospital of Fujian Medical University, 20 Chazhong Road, Fuzhou, 350005, Fujian, People's Republic of China.,Department of General Medicine, The First Affiliated Hospital of Fujian Medical University, Fuzhou, People's Republic of China.,Fujian Hypertension Research Institute, The First Affiliated Hospital of Fujian Medical University, Fuzhou, People's Republic of China
| | - Li Luo
- Department of Geriatrics, The First Affiliated Hospital of Fujian Medical University, 20 Chazhong Road, Fuzhou, 350005, Fujian, People's Republic of China.,Department of General Medicine, The First Affiliated Hospital of Fujian Medical University, Fuzhou, People's Republic of China.,Fujian Hypertension Research Institute, The First Affiliated Hospital of Fujian Medical University, Fuzhou, People's Republic of China
| | - Huajun Wang
- Fujian Hypertension Research Institute, The First Affiliated Hospital of Fujian Medical University, Fuzhou, People's Republic of China
| | - Liangdi Xie
- Department of Geriatrics, The First Affiliated Hospital of Fujian Medical University, 20 Chazhong Road, Fuzhou, 350005, Fujian, People's Republic of China. .,Department of General Medicine, The First Affiliated Hospital of Fujian Medical University, Fuzhou, People's Republic of China. .,Fujian Hypertension Research Institute, The First Affiliated Hospital of Fujian Medical University, Fuzhou, People's Republic of China.
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10
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Peng-Winkler Y, Wessels I, Rink L, Fischer HJ. Zinc Levels Affect the Metabolic Switch of T Cells by Modulating Glucose Uptake and Insulin Receptor Signaling. Mol Nutr Food Res 2022; 66:e2100944. [PMID: 35182109 DOI: 10.1002/mnfr.202100944] [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: 10/14/2021] [Revised: 02/09/2022] [Indexed: 11/11/2022]
Abstract
SCOPE T cell activation requires a metabolic reprogramming from oxidative phosphorylation to aerobic glycolysis to rapidly provide substrates for biosynthesis. An individual's zinc status plays an important role in balancing the activation of T cells and is required for a proper function of immune cells. Furthermore, zinc plays an important role during effector T cell polarization to T helper cell subsets or regulatory T cells, with effector T cells relying on glycolysis and regulatory T cells on oxidative phosphorylation. Therefore, we aimed to analyze if zinc also impacts on T cell activation on the level of intracellular metabolism. METHODS AND RESULTS We used mixed lymphocyte culture and anti-CD3/CD28 stimulation as in vitro models for T cell activation to investigate the effect of zinc supplementation and deprivation on metabolic switching. We observed promoted glucose uptake, insulin receptor expression and signaling in both zinc conditions, whereas key metabolic enzymes were stimulated mainly by zinc deprivation. Alterations in cytokine production suggest an immune-activating effect of zinc deprivation and a balancing effect of zinc supplementation. CONCLUSION Our results suggest a supportive effect of both zinc supplementation and deprivation on the metabolic switch during T cell activation, adding another level of immune regulation by zinc. This article is protected by copyright. All rights reserved.
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Affiliation(s)
- Yiming Peng-Winkler
- Institute of Immunology, Medical Faculty, RWTH Aachen University, Pauwelsstr. 30, Aachen, D-52074, Germany
| | - Inga Wessels
- Institute of Immunology, Medical Faculty, RWTH Aachen University, Pauwelsstr. 30, Aachen, D-52074, Germany
| | - Lothar Rink
- Institute of Immunology, Medical Faculty, RWTH Aachen University, Pauwelsstr. 30, Aachen, D-52074, Germany
| | - Henrike Josephine Fischer
- Institute of Immunology, Medical Faculty, RWTH Aachen University, Pauwelsstr. 30, Aachen, D-52074, Germany
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11
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Kim B, Kim HY, Yoon BR, Yeo J, In Jung J, Yu KS, Kim HC, Yoo SJ, Park JK, Kang SW, Lee WW. Cytoplasmic zinc promotes IL-1β production by monocytes and macrophages through mTORC1-induced glycolysis in rheumatoid arthritis. Sci Signal 2022; 15:eabi7400. [PMID: 35015571 DOI: 10.1126/scisignal.abi7400] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
[Figure: see text].
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Affiliation(s)
- Bonah Kim
- Laboratory of Autoimmunity and Inflammation (LAI), Department of Biomedical Sciences, and BK21Plus Biomedical Science Project, Seoul National University College of Medicine, Seoul 03080, Republic of Korea
| | - Hee Young Kim
- Laboratory of Autoimmunity and Inflammation (LAI), Department of Biomedical Sciences, and BK21Plus Biomedical Science Project, Seoul National University College of Medicine, Seoul 03080, Republic of Korea.,Department of Microbiology and Immunology, Seoul National University College of Medicine, Seoul 03080, Republic of Korea.,Institute of Infectious Diseases, Seoul National University College of Medicine, Seoul 03080, Republic of Korea
| | - Bo Ruem Yoon
- Department of Microbiology and Immunology, Seoul National University College of Medicine, Seoul 03080, Republic of Korea
| | - Jina Yeo
- Division of Rheumatology, Department of Internal Medicine, Seoul National University College of Medicine, Seoul 03080, Republic of Korea
| | - Ji In Jung
- Division of Rheumatology, Department of Internal Medicine, Seoul National University College of Medicine, Seoul 03080, Republic of Korea
| | - Kyung-Sang Yu
- Department of Clinical Pharmacology and Therapeutics, Seoul National University College of Medicine and Hospital, Seoul 03080, Republic of Korea
| | - Hyeon Chang Kim
- Department of Preventive Medicine, Yonsei University College of Medicine, Seoul 03722, Republic of Korea
| | - Su-Jin Yoo
- Department of Internal Medicine, Chungnam National University School of Medicine, 282 Munhwa-ro, Jung-gu, Daejeon 35015, Republic of Korea
| | - Jin Kyun Park
- Division of Rheumatology, Department of Internal Medicine, Seoul National University College of Medicine, Seoul 03080, Republic of Korea
| | - Seong Wook Kang
- Department of Internal Medicine, Chungnam National University School of Medicine, 282 Munhwa-ro, Jung-gu, Daejeon 35015, Republic of Korea
| | - Won-Woo Lee
- Laboratory of Autoimmunity and Inflammation (LAI), Department of Biomedical Sciences, and BK21Plus Biomedical Science Project, Seoul National University College of Medicine, Seoul 03080, Republic of Korea.,Department of Microbiology and Immunology, Seoul National University College of Medicine, Seoul 03080, Republic of Korea.,Cancer Research Institute, Ischemic/Hypoxic Disease Institute, and Institute of Infectious Diseases, Seoul National University College of Medicine, Seoul National University Hospital Biomedical Research Institute, Seoul 03080, Republic of Korea
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Ginefra P, Carrasco Hope H, Spagna M, Zecchillo A, Vannini N. Ionic Regulation of T-Cell Function and Anti-Tumour Immunity. Int J Mol Sci 2021; 22:ijms222413668. [PMID: 34948472 PMCID: PMC8705279 DOI: 10.3390/ijms222413668] [Citation(s) in RCA: 6] [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: 12/02/2021] [Revised: 12/15/2021] [Accepted: 12/17/2021] [Indexed: 12/02/2022] Open
Abstract
The capacity of T cells to identify and kill cancer cells has become a central pillar of immune-based cancer therapies. However, T cells are characterized by a dysfunctional state in most tumours. A major obstacle for proper T-cell function is the metabolic constraints posed by the tumour microenvironment (TME). In the TME, T cells compete with cancer cells for macronutrients (sugar, proteins, and lipid) and micronutrients (vitamins and minerals/ions). While the role of macronutrients in T-cell activation and function is well characterized, the contribution of micronutrients and especially ions in anti-tumour T-cell activities is still under investigation. Notably, ions are important for most of the signalling pathways regulating T-cell anti-tumour function. In this review, we discuss the role of six biologically relevant ions in T-cell function and in anti-tumour immunity, elucidating potential strategies to adopt to improve immunotherapy via modulation of ion metabolism.
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13
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Rolles B, Maywald M, Rink L. Intracellular zinc during cell activation and zinc deficiency. J Trace Elem Med Biol 2021; 68:126864. [PMID: 34562730 DOI: 10.1016/j.jtemb.2021.126864] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/20/2021] [Revised: 09/09/2021] [Accepted: 09/13/2021] [Indexed: 12/25/2022]
Abstract
INTRODUCTION Zinc is an essential trace element having manifold functions within living cells. Zinc deficiency but also zinc excess impairs cell-specific functions whereas a balanced zinc level is required for an adequate cell behavior. MATERIAL AND METHODS This study deals with the impact of cellular priming due to stimulation with interleukin (IL)-1, IL-2, IL-4, IL-6 or the chemokine CXCL12a and its subsequent influence on the intracellular free zinc concentration. Since cellular priming and activation is essential for proper immunological reactions, and across that highly cell-type specific, we investigated T cells, B cells, and peripheral blood mononuclear cells (PBMCs). Additionally, alterations of the intracellular zinc content was investigated by inducing zinc deficiency using the zinc chelator N,N,N',N'-tetrakis(2-pyridylmethyl)ethane-1,2-diamine (TPEN) with subsequent re-supplementation of zinc, hence generating an intracellular zinc flux. Evaluation of zinc staining with FluoZin3-AM, Zinpyr-1 and Zinquin was done by flow cytometry or by fluorescence microscopy. RESULTS Our results indicate that cellular priming for different periods of time (10 minutes/one hour) causes decreased intracellular free zinc concentrations in the FluoZin3-AM staining and increased zinc concentrations stained with Zinpyr-1. Furthermore, zinc supplementation after induced zinc deficiency leads to a fast and excessive rise of the intracellular free zinc levels in most cellular compartments. CONCLUSION Our study emphasizes the importance of zinc homeostasis and zinc distribution during cellular priming and for certain signaling cascades especially in T and B cells. Moreover, we demonstrated that zinc re-supplementation of zinc deficient cells results in significantly elevated intracellular free zinc concentrations compared to untreated controls. Hence, this underlines the need of a balanced zinc homeostasis for proper immune cell function.
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Affiliation(s)
- Benjamin Rolles
- Institute of Immunology, Faculty of Medicine, RWTH Aachen University, University Hospital, Pauwelsstraße 30, 52074, Aachen, Germany; Department of Hematology, Oncology, Hemostaseology, and Stem Cell Transplantation, Faculty of Medicine, RWTH Aachen University, University Hospital, Pauwelsstraße 30, 52074, Aachen, Germany; Center for Integrated Oncology Aachen Bonn Cologne Duesseldorf (CIO ABCD), Germany
| | - Martina Maywald
- Institute of Immunology, Faculty of Medicine, RWTH Aachen University, University Hospital, Pauwelsstraße 30, 52074, Aachen, Germany
| | - Lothar Rink
- Institute of Immunology, Faculty of Medicine, RWTH Aachen University, University Hospital, Pauwelsstraße 30, 52074, Aachen, Germany.
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14
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Gene expression microarray analysis of adult testicular germ cell tumor: a comparison between pure-type seminomas and seminoma components in mixed tumors. Virchows Arch 2021; 479:1177-1186. [PMID: 34347114 DOI: 10.1007/s00428-021-03168-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2021] [Revised: 07/09/2021] [Accepted: 07/21/2021] [Indexed: 12/20/2022]
Abstract
We previously demonstrated a genetic evidence of the progression from seminoma to embryonal carcinoma in mixed testicular germ cell tumors (TGCTs). This process, the "reprogramming" of seminoma cells, is crucial for pathological tumorigenesis and should be kept in mind while designing clinical therapeutic strategies. We hypothesized that a comparison between pure-type seminomas and seminoma components in mixed tumors (mixed-type seminomas) could reveal early changes in the reprogramming process. In the present study, we performed gene expression microarray analysis of six pure-type and six mixed-type seminomas. Hierarchical clustering analysis properly grouped each type of seminomas into a separated cluster. Supervised analysis between pure-type and mixed-type seminomas revealed 154 significantly dysregulated genes (Storey-adjusted q < 0.05). The genes with the highest overexpression in mixed-type seminomas compared with the pure-type seminomas included MT1 isoforms, PRSS8, TSC22D1, and SLC39A4; downregulated genes included DEFB123, LMTK2, and MYRF. Functional annotation analysis of the differentially expressed genes revealed that the top-ranked functional categories were related to cellular zinc metabolism and consisted of MT1 isoforms and SLC39A4, the results of which were validated using quantitative polymerase chain reaction and immunohistochemical analysis. In conclusion, this research provides further evidence that pure and mixed types of seminomas are molecularly different, which may contribute to elucidate the reprogramming mechanism in the progression of TGCTs.
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15
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Costagliola G, Nuzzi G, Spada E, Comberiati P, Verduci E, Peroni DG. Nutraceuticals in Viral Infections: An Overview of the Immunomodulating Properties. Nutrients 2021; 13:nu13072410. [PMID: 34371920 PMCID: PMC8308811 DOI: 10.3390/nu13072410] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2021] [Revised: 07/10/2021] [Accepted: 07/12/2021] [Indexed: 12/21/2022] Open
Abstract
Nutraceuticals, including vitamin D, vitamin A, zinc, lactoferrin, polyphenols coenzyme Q, magnesium, and selenium, are implicated in the modulation of the complex molecular pathways involved in the immune response against viral pathogens. A common element of the activity of nutraceuticals is their ability to enhance the innate immune response against pathogens by acting on the major cellular subsets and inducing the release of pro-inflammatory cytokines and antimicrobial peptides. In some cases, this action is accompanied by a direct antimicrobial effect, as evidenced in the specific case of lactoferrin. Furthermore, nutraceuticals act through complex molecular mechanisms to minimize the damage caused by the activation of the immune system against pathogens, reducing the oxidative damage, influencing the antigen presentation, enhancing the differentiation and proliferation of regulatory T cells, driving the differentiation of lymphocyte subsets, and modulating the production of pro-inflammatory cytokines. In this paper, we review the main molecular mechanisms responsible for the immunomodulatory function of nutraceuticals, focusing on the most relevant aspects for the prevention and treatment of viral infections.
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Affiliation(s)
- Giorgio Costagliola
- Department of Clinical and Experimental Medicine, Division of Pediatrics, University of Pisa, Via Roma 57, 56126 Pisa, Italy; (G.C.); (G.N.); (E.S.); (P.C.)
| | - Giulia Nuzzi
- Department of Clinical and Experimental Medicine, Division of Pediatrics, University of Pisa, Via Roma 57, 56126 Pisa, Italy; (G.C.); (G.N.); (E.S.); (P.C.)
| | - Erika Spada
- Department of Clinical and Experimental Medicine, Division of Pediatrics, University of Pisa, Via Roma 57, 56126 Pisa, Italy; (G.C.); (G.N.); (E.S.); (P.C.)
| | - Pasquale Comberiati
- Department of Clinical and Experimental Medicine, Division of Pediatrics, University of Pisa, Via Roma 57, 56126 Pisa, Italy; (G.C.); (G.N.); (E.S.); (P.C.)
- Department of Clinical Immunology and Allergology, I.M. Sechenov First Moscow State Medical University, 119435 Moscow, Russia
| | - Elvira Verduci
- Department of Pediatrics, San Paolo Hospital, 20142 Milan, Italy;
- Department of Health Science, University of Milan, 20142 Milan, Italy
| | - Diego G. Peroni
- Department of Clinical and Experimental Medicine, Division of Pediatrics, University of Pisa, Via Roma 57, 56126 Pisa, Italy; (G.C.); (G.N.); (E.S.); (P.C.)
- Correspondence: ; Tel.: +39-50-799-2100
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16
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Abstract
Evidence for the importance of zinc for all immune cells and for mounting an efficient and balanced immune response to various environmental stressors has been accumulating in recent years. This article describes the role of zinc in fundamental biological processes and summarizes our current knowledge of zinc's effect on hematopoiesis, including differentiation into immune cell subtypes. In addition, the important role of zinc during activation and function of immune cells is detailed and associated with the specific immune responses to bacteria, parasites, and viruses. The association of zinc with autoimmune reactions and cancers as diseases with increased or decreased immune responses is also discussed. This article provides a broad overview of the manifold roles that zinc, or its deficiency, plays in physiology and during various diseases. Consequently, we discuss why zinc supplementation should be considered, especially for people at risk of deficiency. Expected final online publication date for the Annual Review of Nutrition, Volume 41 is September 2021. Please see http://www.annualreviews.org/page/journal/pubdates for revised estimates.
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Affiliation(s)
- Inga Wessels
- Institute of Immunology, Faculty of Medicine, RWTH Aachen University, 52074 Aachen, Germany;
| | | | - Lothar Rink
- Institute of Immunology, Faculty of Medicine, RWTH Aachen University, 52074 Aachen, Germany;
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17
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Kim B, Lee WW. Regulatory Role of Zinc in Immune Cell Signaling. Mol Cells 2021; 44:335-341. [PMID: 33986184 PMCID: PMC8175146 DOI: 10.14348/molcells.2021.0061] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2021] [Revised: 04/06/2021] [Accepted: 04/07/2021] [Indexed: 02/08/2023] Open
Abstract
Zinc is an essential micronutrient with crucial roles in multiple facets of biological processes. Dysregulated zinc homeostasis impairs overall immune function and resultantly increases susceptibility to infection. Clinically, zinc supplementation is practiced for treatment of several infectious diseases, such as diarrhea and malaria. Recent focus on zinc as a beneficial element for immune system support has resulted in investigation of the immunomodulatory roles of zinc in a variety of immune cells. Besides its classical role as a cofactor that regulates the structural function of thousands of proteins, accumulating evidence suggests that zinc also acts, in a manner similar to calcium, as an ionic regulator of immune responses via participation as an intracellular messenger in signaling pathways. In this review, we focus on the role of zinc as a signaling molecule in major pathways such as those downstream of Toll-like receptors-, T cell receptor-, and cytokine-mediated signal transduction that regulate the activity and function of monocytes/macrophages and T cells, principal players in the innate and adaptive immune systems.
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Affiliation(s)
- Bonah Kim
- Laboratory of Autoimmunity and Inflammation (LAI), Department of Biomedical Sciences, and Department of Microbiology and Immunology, Seoul National University College of Medicine, Seoul 03080, Korea
| | - Won-Woo Lee
- Laboratory of Autoimmunity and Inflammation (LAI), Department of Biomedical Sciences, and Department of Microbiology and Immunology, Seoul National University College of Medicine, Seoul 03080, Korea
- Cancer Research Institute, Ischemic/Hypoxic Disease Institute, and Institute of Infectious Diseases, Seoul National University College of Medicine, Seoul 03080, Korea
- Seoul National University Hospital Biomedical Research Institute, Seoul 03080, Korea
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18
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Wessels I, Fischer HJ, Rink L. Update on the multi-layered levels of zinc-mediated immune regulation. Semin Cell Dev Biol 2020; 115:62-69. [PMID: 33323322 DOI: 10.1016/j.semcdb.2020.11.005] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2020] [Revised: 11/10/2020] [Accepted: 11/10/2020] [Indexed: 11/15/2022]
Abstract
The significance of zinc for an efficient immune response is well accepted. During zinc deficiency, an increase in the myeloid to lymphoid immune cells ratio was observed. This results in a disturbed balance of pro- and anti-inflammatory processes as well as defects in tolerance during infections. Consequently, instead of efficiently defending the body against invading pathogens, damage of host cells is frequently observed. This explains the increased susceptibility to infections and their severe progression observed for zinc deficient individuals as well as the association of autoimmune diseases with low serum zinc levels. Together with the advances in techniques for investigating cellular development, communication and intracellular metabolism, our understanding of the mechanisms underlying the benefits of zinc for human health and the detriments of zinc deficiency has much improved. As analyses of the zinc status and effects of zinc supplementation were more frequently included into clinical studies, our knowledge of the association of zinc deficiency to a variety of diseases was strongly improved. Still there are several areas in zinc biology that require further in-depth investigation such as the interaction with other nutritional elements, the direct association between zinc transportation, membrane-structure, receptors, and signaling as well as its role in cell degeneration. This article will describe our current understanding of the role of zinc during the immune response focusing on the most recent findings and underlying mechanisms. Research questions that need to be addressed in the future will be discussed as well.
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Affiliation(s)
- Inga Wessels
- Institute of Immunology, Faculty of Medicine, RWTH Aachen University, Pauwelsstr. 30, 52074 Aachen, Germany.
| | - Henrike J Fischer
- Institute of Immunology, Faculty of Medicine, RWTH Aachen University, Pauwelsstr. 30, 52074 Aachen, Germany.
| | - Lothar Rink
- Institute of Immunology, Faculty of Medicine, RWTH Aachen University, Pauwelsstr. 30, 52074 Aachen, Germany.
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19
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[Selenium and zinc: "antioxidants" for healthy aging?]. Z Gerontol Geriatr 2020; 53:295-302. [PMID: 32468295 DOI: 10.1007/s00391-020-01735-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2020] [Accepted: 05/04/2020] [Indexed: 12/24/2022]
Abstract
Selenium and zinc are essential trace elements and an inadequate dietary intake has been implicated in the decline of immune and cognitive functions in aged persons and in the pathogenesis of age-related disorders. Both micronutrients are often marketed as "antioxidants" in mineral supplements; however, neither selenium nor zinc are antioxidants per se but they may exert beneficial effects as components of enzymes and other proteins that catalyze redox reactions and/or are involved in the maintenance of redox homeostasis. According to epidemiological data older individuals have an increased risk of developing deficiencies in the selenium and zinc status; however, such statistical correlations in epidemiological studies do not imply a causal association. Intervention trials are scarce and have yielded inconsistent and sometimes even adverse results. It should also be noted that the observed deficiencies in micronutrients may not necessarily be attributable to inadequate dietary intake as the absorption and distribution within the body might also be influenced by factors such as medications or interaction with other food ingredients. Thus, any dietary supplementation should be implemented with caution and persons who wish to take mineral supplements should first seek medical advice. This article discusses the role of selenium and zinc in biological antioxidant systems, summarizes findings on the supply and supplementation of aged persons with these trace elements and on the influence they may exert on aging-related health issues, such as cognitive decline and type 2 diabetes mellitus.
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20
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Raman S, Keil C, Dieringer P, Hübner C, Bueno A, Gurikov P, Nissen J, Holtkamp M, Karst U, Haase H, Smirnova I. Alginate aerogels carrying calcium, zinc and silver cations for wound care: Fabrication and metal detection. J Supercrit Fluids 2019. [DOI: 10.1016/j.supflu.2019.104545] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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21
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Wessels I, Rink L. Micronutrients in autoimmune diseases: possible therapeutic benefits of zinc and vitamin D. J Nutr Biochem 2019; 77:108240. [PMID: 31841960 DOI: 10.1016/j.jnutbio.2019.108240] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2019] [Accepted: 09/09/2019] [Indexed: 12/14/2022]
Abstract
A functional immune system is essential for healthy life. This is achieved by the coordinate activation and interaction of different immune cells. One should be aware that activation of the immune response is as important as its deactivation when the pathogens are cleared, as otherwise host tissue can be damaged up to life-threatening levels. Autoimmune diseases (AID) represent a phenomenon of immune cells attacking host cells and tissue. Five to eight percent of the world's population are currently affected by 80-100 AID. In recent years, the incidence has been constantly increasing, reaching alarmingly high numbers particularly for type 1 diabetes mellitus, Crohn's disease, rheumatoid arthritis, Sjogren's syndrome and multiple sclerosis. This indicates a higher societal burden of AID for the future. This article provides an overview of general concepts of triggers and underlying mechanisms leading to self-destruction. Lately, several original concepts of disease etiology were revised, and there is a variety of hypotheses on triggers, underlying mechanisms and preventive actions. This article concentrates on the importance of nutrition, especially zinc and vitamin D, for balancing the immune function. Homespun nutritional remedies seem to reenter today's therapeutic strategies. Current treatment approaches are largely symptomatic or suppress the immune system. However, recent studies reveal significant benefits of nutrition-related therapeutic approaches including prevention and treatment of established disease, which offer a cost-efficient and trigger-unspecific alternative addressing balancing rather than suppression of the immune system. Zinc and vitamin D are currently the best studied and most promising candidates for therapeutic intervention.
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Affiliation(s)
- Inga Wessels
- Institute of Immunology, Medical Faculty, RWTH Aachen University, Pauwelsstr. 30, D-52074 Aachen, Germany.
| | - Lothar Rink
- Institute of Immunology, Medical Faculty, RWTH Aachen University, Pauwelsstr. 30, D-52074 Aachen, Germany.
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22
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Read SA, Obeid S, Ahlenstiel C, Ahlenstiel G. The Role of Zinc in Antiviral Immunity. Adv Nutr 2019; 10:696-710. [PMID: 31305906 PMCID: PMC6628855 DOI: 10.1093/advances/nmz013] [Citation(s) in RCA: 385] [Impact Index Per Article: 77.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2018] [Revised: 01/17/2019] [Accepted: 01/22/2019] [Indexed: 12/16/2022] Open
Abstract
Zinc is an essential trace element that is crucial for growth, development, and the maintenance of immune function. Its influence reaches all organs and cell types, representing an integral component of approximately 10% of the human proteome, and encompassing hundreds of key enzymes and transcription factors. Zinc deficiency is strikingly common, affecting up to a quarter of the population in developing countries, but also affecting distinct populations in the developed world as a result of lifestyle, age, and disease-mediated factors. Consequently, zinc status is a critical factor that can influence antiviral immunity, particularly as zinc-deficient populations are often most at risk of acquiring viral infections such as HIV or hepatitis C virus. This review summarizes current basic science and clinical evidence examining zinc as a direct antiviral, as well as a stimulant of antiviral immunity. An abundance of evidence has accumulated over the past 50 y to demonstrate the antiviral activity of zinc against a variety of viruses, and via numerous mechanisms. The therapeutic use of zinc for viral infections such as herpes simplex virus and the common cold has stemmed from these findings; however, there remains much to be learned regarding the antiviral mechanisms and clinical benefit of zinc supplementation as a preventative and therapeutic treatment for viral infections.
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Affiliation(s)
- Scott A Read
- Blacktown Medical School, Western Sydney University, Blacktown, New South Wales, Australia
- Storr Liver Centre, The Westmead Institute for Medical Research, The University of Sydney and Westmead Hospital, Westmead, New South Wales, Australia
| | - Stephanie Obeid
- The Kirby Institute, University of New South Wales, Sydney, New South Wales, Australia
| | - Chantelle Ahlenstiel
- The Kirby Institute, University of New South Wales, Sydney, New South Wales, Australia
| | - Golo Ahlenstiel
- Blacktown Medical School, Western Sydney University, Blacktown, New South Wales, Australia
- Storr Liver Centre, The Westmead Institute for Medical Research, The University of Sydney and Westmead Hospital, Westmead, New South Wales, Australia
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23
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Aster I, Barth LM, Rink L, Wessels I. Alterations in membrane fluidity are involved in inhibition of GM-CSF-induced signaling in myeloid cells by zinc. J Trace Elem Med Biol 2019; 54:214-220. [PMID: 31109615 DOI: 10.1016/j.jtemb.2019.04.018] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/26/2018] [Revised: 04/24/2019] [Accepted: 04/25/2019] [Indexed: 01/09/2023]
Abstract
Zinc has a strong influence on the function of the immune system and is a driving factor for immune cell development. In this regard, studies revealed cell type specific effects of zinc. During zinc deficiency for example, development and activity of myeloid cells seems to be prioritized at the cost of cells from the lymphoid lineage. In T-cells, the altered proliferation was found to be due to zinc's effect on IL-2-induced signaling processes, but in contrast to lymphoid cells, effects of zinc homeostasis on growth-factor-induced signaling in myeloid cells have not been investigated yet. The granulocyte-macrophage colony-stimulating factor (GM-CSF) is one of the major factors inducing monopoiesis. Considering the structural similarities between the GM-CSF receptor and those of the IL-receptor family as well as a similar set of signaling molecules involved, an impact of zinc on the GM-CSF signaling seems to be likely. Therefore, the effect of zinc on GM-CSF-induced signaling molecules was investigated here, using U937 cells as a model myeloid cell line. GM-CSF stimulation significantly increased STAT5 phosphorylation which was prevented completely by pre-incubation with zinc and pyrithione. U937 cells showed a strong pre-activation regarding c-Raf, which was significantly decreased by zinc and pyrithione incubation, independently from GM-CSF stimulation. As current literature was not sufficient to explain the observed effects, we hypothesized an altered receptor-complex assembly. As membrane composition and plasticity, subsumed under the term of membrane fluidity, was found to affect receptor multimerization, the impact of zinc on membrane fluidity was considered as a completely novel approach. Indeed, addition of zinc also decreased GM-CSFR expression on the cell surface and most interestingly altered membrane fluidity. In conclusion, we hypothesize that the incubation with zinc causes an alteration of membrane fluidity that hinders efficient receptor assembly as well as phosphorylation of signal molecules and therefore signal transduction.
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Affiliation(s)
- Isabell Aster
- Institute of Immunology, Medical Faculty, RWTH Aachen University, Pauwelsstr. 30, D-52074 Aachen, Germany
| | - Lisa-Marie Barth
- Institute of Immunology, Medical Faculty, RWTH Aachen University, Pauwelsstr. 30, D-52074 Aachen, Germany
| | - Lothar Rink
- Institute of Immunology, Medical Faculty, RWTH Aachen University, Pauwelsstr. 30, D-52074 Aachen, Germany
| | - Inga Wessels
- Institute of Immunology, Medical Faculty, RWTH Aachen University, Pauwelsstr. 30, D-52074 Aachen, Germany.
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24
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Abstract
Zinc(II) ions are redox-inert in biology. Yet, their interaction with sulfur of cysteine in cellular proteins can confer ligand-centered redox activity on zinc coordination sites, control protein functions, and generate signalling zinc ions as potent effectors of many cellular processes. The specificity and relative high affinity of binding sites for zinc allow regulation in redox biology, free radical biology, and the biology of reactive species. Understanding the role of zinc in these areas of biology requires an understanding of how cellular Zn2+ is homeostatically controlled and can serve as a regulatory ion in addition to Ca2+, albeit at much lower concentrations. A rather complex system of dozens of transporters and metallothioneins buffer the relatively high (hundreds of micromolar) total cellular zinc concentrations in such a way that the available zinc ion concentrations are only picomolar but can fluctuate in signalling. The proteins targeted by Zn2+ transients include enzymes controlling phosphorylation and redox signalling pathways. Networks of regulatory functions of zinc integrate gene expression and metabolic and signalling pathways at several hierarchical levels. They affect enzymatic catalysis, protein structure and protein-protein/biomolecular interactions and add to the already impressive number of catalytic and structural functions of zinc in an estimated three thousand human zinc proteins. The effects of zinc on redox biology have adduced evidence that zinc is an antioxidant. Without further qualifications, this notion is misleading and prevents a true understanding of the roles of zinc in biology. Its antioxidant-like effects are indirect and expressed only in certain conditions because a lack of zinc and too much zinc have pro-oxidant effects. Teasing apart these functions based on quantitative considerations of homeostatic control of cellular zinc is critical because opposite consequences are observed depending on the concentrations of zinc: pro- or anti-apoptotic, pro- or anti-inflammatory and cytoprotective or cytotoxic. The article provides a biochemical basis for the links between redox and zinc biology and discusses why zinc has pleiotropic functions. Perturbation of zinc metabolism is a consequence of conditions of redox stress. Zinc deficiency, either nutritional or conditioned, and cellular zinc overload cause oxidative stress. Thus, there is causation in the relationship between zinc metabolism and the many diseases associated with oxidative stress.
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Affiliation(s)
- Wolfgang Maret
- Metal Metabolism Group, Department of Nutritional Sciences, School of Life Course Sciences, Faculty of Life Sciences and Medicine, King's College London, London, UK.
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25
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Anzilotti C, Swan DJ, Boisson B, Deobagkar-Lele M, Oliveira C, Chabosseau P, Engelhardt KR, Xu X, Chen R, Alvarez L, Berlinguer-Palmini R, Bull KR, Cawthorne E, Cribbs AP, Crockford TL, Dang TS, Fearn A, Fenech EJ, de Jong SJ, Lagerholm BC, Ma CS, Sims D, van den Berg B, Xu Y, Cant AJ, Kleiner G, Leahy TR, de la Morena MT, Puck JM, Shapiro RS, van der Burg M, Chapman JR, Christianson JC, Davies B, McGrath JA, Przyborski S, Santibanez Koref M, Tangye SG, Werner A, Rutter GA, Padilla-Parra S, Casanova JL, Cornall RJ, Conley ME, Hambleton S. An essential role for the Zn 2+ transporter ZIP7 in B cell development. Nat Immunol 2019; 20:350-361. [PMID: 30718914 PMCID: PMC6561116 DOI: 10.1038/s41590-018-0295-8] [Citation(s) in RCA: 71] [Impact Index Per Article: 14.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2018] [Accepted: 12/05/2018] [Indexed: 12/20/2022]
Abstract
Despite the known importance of zinc for human immunity, molecular insights into its roles have remained limited. Here we report a novel autosomal recessive disease characterized by absent B cells, agammaglobulinemia and early onset infections in five unrelated families. The immunodeficiency results from hypomorphic mutations of SLC39A7, which encodes the endoplasmic reticulum-to-cytoplasm zinc transporter ZIP7. Using CRISPR-Cas9 mutagenesis we have precisely modeled ZIP7 deficiency in mice. Homozygosity for a null allele caused embryonic death, but hypomorphic alleles reproduced the block in B cell development seen in patients. B cells from mutant mice exhibited a diminished concentration of cytoplasmic free zinc, increased phosphatase activity and decreased phosphorylation of signaling molecules downstream of the pre-B cell and B cell receptors. Our findings highlight a specific role for cytosolic Zn2+ in modulating B cell receptor signal strength and positive selection.
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Affiliation(s)
- Consuelo Anzilotti
- MRC Human Immunology Unit, Weatherall Institute of Molecular Medicine, University of Oxford, Oxford, UK
| | - David J Swan
- Primary Immunodeficiency Group, Institute of Cellular Medicine, Newcastle University, Newcastle upon Tyne, UK
| | - Bertrand Boisson
- St Giles Laboratory of Human Genetics of Infectious Diseases, Rockefeller Branch, The Rockefeller University, New York, NY, USA
- Laboratory of Human Genetics of Infectious Diseases, Necker Branch, Inserm U1163 Necker Hospital for Sick Children, Paris, France
- Paris Descartes University, Imagine Institute, Paris, France
| | - Mukta Deobagkar-Lele
- MRC Human Immunology Unit, Weatherall Institute of Molecular Medicine, University of Oxford, Oxford, UK
| | - Catarina Oliveira
- Wellcome Centre for Human Genetics, University of Oxford, Oxford, UK
| | - Pauline Chabosseau
- Section of Cell Biology and Functional Genomics, Division of Diabetes, Endocrinology and Metabolism, Department of Medicine, Imperial College, London, UK
| | - Karin R Engelhardt
- Primary Immunodeficiency Group, Institute of Cellular Medicine, Newcastle University, Newcastle upon Tyne, UK
| | - Xijin Xu
- MRC Human Immunology Unit, Weatherall Institute of Molecular Medicine, University of Oxford, Oxford, UK
| | - Rui Chen
- Primary Immunodeficiency Group, Institute of Cellular Medicine, Newcastle University, Newcastle upon Tyne, UK
| | - Luis Alvarez
- Wellcome Centre for Human Genetics, University of Oxford, Oxford, UK
| | | | - Katherine R Bull
- MRC Human Immunology Unit, Weatherall Institute of Molecular Medicine, University of Oxford, Oxford, UK
| | - Eleanor Cawthorne
- MRC Human Immunology Unit, Weatherall Institute of Molecular Medicine, University of Oxford, Oxford, UK
| | - Adam P Cribbs
- MRC WIMM Centre for Computational Biology, Weatherall Institute of Molecular Medicine, University of Oxford, Oxford, UK
| | - Tanya L Crockford
- MRC Human Immunology Unit, Weatherall Institute of Molecular Medicine, University of Oxford, Oxford, UK
| | - Tarana Singh Dang
- Primary Immunodeficiency Group, Institute of Cellular Medicine, Newcastle University, Newcastle upon Tyne, UK
| | - Amy Fearn
- Institute for Cell and Molecular Biosciences, Newcastle University, Newcastle upon Tyne, UK
| | - Emma J Fenech
- Ludwig Institute for Cancer Research, University of Oxford, Oxford, UK
| | - Sarah J de Jong
- St Giles Laboratory of Human Genetics of Infectious Diseases, Rockefeller Branch, The Rockefeller University, New York, NY, USA
| | - B Christoffer Lagerholm
- MRC Human Immunology Unit, Weatherall Institute of Molecular Medicine, University of Oxford, Oxford, UK
| | - Cindy S Ma
- Garvan Institute of Medical Research, Darlinghurst, New South Wales, Australia
- St Vincent's Clinical School, Faculty of Medicine, University of NSW, Darlinghurst, New South Wales, Australia
| | - David Sims
- MRC WIMM Centre for Computational Biology, Weatherall Institute of Molecular Medicine, University of Oxford, Oxford, UK
| | - Bert van den Berg
- Institute for Cell and Molecular Biosciences, Newcastle University, Newcastle upon Tyne, UK
| | - Yaobo Xu
- Institute of Genetic Medicine, Newcastle University, Newcastle upon Tyne, UK
| | - Andrew J Cant
- Great North Children's Hospital, Newcastle upon Tyne Hospitals NHS Foundation Trust, Newcastle upon Tyne, UK
| | - Gary Kleiner
- Pediatric Allergy and Immunology, University of Miami Miller School of Medicine, Miami, FL, USA
| | - T Ronan Leahy
- Paediatric Immunology and Infectious Diseases, Our Lady's Children's Hospital, Crumlin, Dublin, Ireland
| | - M Teresa de la Morena
- Division of Immunology, Department of Pediatrics, University of Washington and Seattle Children's Hospital, Seattle, WA, USA
| | - Jennifer M Puck
- Department of Pediatrics, Division of Allergy, Immunology, and Blood and Bone Marrow Transplantation, University of California, San Francisco, CA, USA
- UCSF Benioff Children's Hospital, San Francisco, CA, USA
| | | | - Mirjam van der Burg
- Department of Immunology, Erasmus University Medical Centre, Rotterdam, the Netherlands
| | - J Ross Chapman
- Wellcome Centre for Human Genetics, University of Oxford, Oxford, UK
| | | | - Benjamin Davies
- Wellcome Centre for Human Genetics, University of Oxford, Oxford, UK
| | - John A McGrath
- St John's Institute of Dermatology, King's College London, London, UK
| | | | | | - Stuart G Tangye
- Garvan Institute of Medical Research, Darlinghurst, New South Wales, Australia
- St Vincent's Clinical School, Faculty of Medicine, University of NSW, Darlinghurst, New South Wales, Australia
| | - Andreas Werner
- Institute for Cell and Molecular Biosciences, Newcastle University, Newcastle upon Tyne, UK
| | - Guy A Rutter
- Section of Cell Biology and Functional Genomics, Division of Diabetes, Endocrinology and Metabolism, Department of Medicine, Imperial College, London, UK
| | - Sergi Padilla-Parra
- Wellcome Centre for Human Genetics, University of Oxford, Oxford, UK
- Dynamic Structural Virology Group, Biocruces Health Research Institute, Barakaldo, Spain
- Ikerbasque, Basque Foundation for Science, Bilbao, Spain
| | - Jean-Laurent Casanova
- St Giles Laboratory of Human Genetics of Infectious Diseases, Rockefeller Branch, The Rockefeller University, New York, NY, USA
- Laboratory of Human Genetics of Infectious Diseases, Necker Branch, Inserm U1163 Necker Hospital for Sick Children, Paris, France
- Paris Descartes University, Imagine Institute, Paris, France
- Pediatric Hematology-Immunology Unit, Necker Hospital for Sick Children, Paris, France
- Howard Hughes Medical Institute, New York, NY, USA
| | - Richard J Cornall
- MRC Human Immunology Unit, Weatherall Institute of Molecular Medicine, University of Oxford, Oxford, UK.
| | - Mary Ellen Conley
- St Giles Laboratory of Human Genetics of Infectious Diseases, Rockefeller Branch, The Rockefeller University, New York, NY, USA.
| | - Sophie Hambleton
- Primary Immunodeficiency Group, Institute of Cellular Medicine, Newcastle University, Newcastle upon Tyne, UK.
- Great North Children's Hospital, Newcastle upon Tyne Hospitals NHS Foundation Trust, Newcastle upon Tyne, UK.
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The Intracellular Free Zinc Level Is Vital for Treg Function and a Feasible Tool to Discriminate between Treg and Activated Th Cells. Int J Mol Sci 2018; 19:ijms19113575. [PMID: 30428511 PMCID: PMC6274670 DOI: 10.3390/ijms19113575] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2018] [Revised: 10/19/2018] [Accepted: 11/06/2018] [Indexed: 12/16/2022] Open
Abstract
The intracellular free zinc level and zinc distribution are important for cellular function. Both are highly variable and are altered due to intrinsic zinc pool fluctuation via buffering and muffling reactions. Multiple autoimmune diseases are associated with pathologically changed zinc levels, which provoke altered signal transduction leading to changed immune responses, cell differentiation, and function. For instance, immunological tolerance can be impaired, causing autoimmune diseases because of a malfunction of regulatory T cells (Tregs). We investigated the intracellular free zinc concentration of resting and activated T helper (Th) cells and Tregs in an allogeneic graft versus host disease model using fluorescence-activated cell sorting (FACS) analysis and enlightened cell function under nontoxic zinc concentrations and zinc deficiency by detecting cytokine secretion via enzyme-linked immunosorbent assay (ELISA). We exhibited for the first time that Tregs could be explicitly discriminated from other Th cell subsets using significantly increased intracellular free zinc levels. Moreover, the intracellular free zinc level was essential in maintaining the Treg phenotype and function, since zinc deficiency favored the pro-inflammatory immune response. Therefore, we hypothesize that the intracellular free zinc level in Th cells is essential in guaranteeing proper cellular function and can be used to discriminate Tregs from other Th cell subsets.
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Sun W, Yang J, Wang W, Hou J, Cheng Y, Fu Y, Xu Z, Cai L. The beneficial effects of Zn on Akt-mediated insulin and cell survival signaling pathways in diabetes. J Trace Elem Med Biol 2018; 46:117-127. [PMID: 29413101 DOI: 10.1016/j.jtemb.2017.12.005] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/01/2017] [Revised: 12/06/2017] [Accepted: 12/21/2017] [Indexed: 12/11/2022]
Abstract
Zinc is one of the essential trace elements and participates in numerous physiological processes. Abnormalities in zinc homeostasis often result in the pathogenesis of various chronic metabolic disorders, such as diabetes and its complications. Zinc has insulin-mimetic and anti-diabetic effects and deficiency has been shown to aggravate diabetes-induced oxidative stress and tissue injury in diabetic rodent models and human subjects with diabetes. Akt signaling pathway plays a central role in insulin-stimulated glucose metabolism and cell survival. Anti-diabetic effects of zinc are largely dependent on the activation of Akt signaling. Zn is also an inducer of metallothionein that plays important role in anti-oxidative stress and damage. However, the exact molecular mechanisms underlying zinc-induced activation of Akt signaling pathway remains to be elucidated. This review summarizes the recent advances in deciphering the possible mechanisms of zinc on Akt-mediated insulin and cell survival signaling pathways in diabetes conditions. Insights into the effects of zinc on epigenetic regulation and autophagy in diabetic nephropathy are also discussed in the latter part of this review.
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Affiliation(s)
- Weixia Sun
- Department of Nephrology, The First Hospital of Jilin University, Changchun, Jilin, 130021, China.
| | - Jiaxing Yang
- Department of Gastrointestinal Surgery, The First Hospital of Jilin University, Changchun, Jilin, 130021, China
| | - Wanning Wang
- Department of Nephrology, The First Hospital of Jilin University, Changchun, Jilin, 130021, China; Pediatric Research Institute, The Departments of Pediatrics, Radiation Oncology, Pharmacology and Toxicology, The University of Louisville, Louisville, KY 40202, USA
| | - Jie Hou
- Department of Nephrology, The First Hospital of Jilin University, Changchun, Jilin, 130021, China
| | - Yanli Cheng
- Department of Nephrology, The First Hospital of Jilin University, Changchun, Jilin, 130021, China
| | - Yaowen Fu
- Department of Nephrology, The First Hospital of Jilin University, Changchun, Jilin, 130021, China
| | - Zhonggao Xu
- Department of Nephrology, The First Hospital of Jilin University, Changchun, Jilin, 130021, China.
| | - Lu Cai
- Pediatric Research Institute, The Departments of Pediatrics, Radiation Oncology, Pharmacology and Toxicology, The University of Louisville, Louisville, KY 40202, USA
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Kocyła A, Adamczyk J, Krężel A. Interdependence of free zinc changes and protein complex assembly – insights into zinc signal regulation. Metallomics 2018; 10:120-131. [DOI: 10.1039/c7mt00301c] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
Small and local changes in cellular free zinc concentration affect protein assembly.
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Affiliation(s)
- Anna Kocyła
- Department of Chemical Biology
- Faculty of Biotechnology
- University of Wrocław
- 50-383 Wrocław
- Poland
| | - Justyna Adamczyk
- Department of Chemical Biology
- Faculty of Biotechnology
- University of Wrocław
- 50-383 Wrocław
- Poland
| | - Artur Krężel
- Department of Chemical Biology
- Faculty of Biotechnology
- University of Wrocław
- 50-383 Wrocław
- Poland
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29
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Wessels I, Maywald M, Rink L. Zinc as a Gatekeeper of Immune Function. Nutrients 2017; 9:E1286. [PMID: 29186856 PMCID: PMC5748737 DOI: 10.3390/nu9121286] [Citation(s) in RCA: 357] [Impact Index Per Article: 51.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2017] [Revised: 11/20/2017] [Accepted: 11/22/2017] [Indexed: 12/27/2022] Open
Abstract
After the discovery of zinc deficiency in the 1960s, it soon became clear that zinc is essential for the function of the immune system. Zinc ions are involved in regulating intracellular signaling pathways in innate and adaptive immune cells. Zinc homeostasis is largely controlled via the expression and action of zinc "importers" (ZIP 1-14), zinc "exporters" (ZnT 1-10), and zinc-binding proteins. Anti-inflammatory and anti-oxidant properties of zinc have long been documented, however, underlying mechanisms are still not entirely clear. Here, we report molecular mechanisms underlying the development of a pro-inflammatory phenotype during zinc deficiency. Furthermore, we describe links between altered zinc homeostasis and disease development. Consequently, the benefits of zinc supplementation for a malfunctioning immune system become clear. This article will focus on underlying mechanisms responsible for the regulation of cellular signaling by alterations in zinc homeostasis. Effects of fast zinc flux, intermediate "zinc waves", and late homeostatic zinc signals will be discriminated. Description of zinc homeostasis-related effects on the activation of key signaling molecules, as well as on epigenetic modifications, are included to emphasize the role of zinc as a gatekeeper of immune function.
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Affiliation(s)
- Inga Wessels
- Institute of Immunology, Faculty of Medicine, University Hospital RWTH Aachen, Pauwelsstr. 30, 52074 Aachen, Germany.
| | - Martina Maywald
- Institute of Immunology, Faculty of Medicine, University Hospital RWTH Aachen, Pauwelsstr. 30, 52074 Aachen, Germany.
| | - Lothar Rink
- Institute of Immunology, Faculty of Medicine, University Hospital RWTH Aachen, Pauwelsstr. 30, 52074 Aachen, Germany.
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30
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Naito Y, Yoshikawa Y, Yoshizawa K, Takenouchi A, Yasui H. Beneficial Effect of Bis(Hinokitiolato)Zn Complex on High-fat Diet-induced Lipid Accumulation in Mouse Liver and Kidney. ACTA ACUST UNITED AC 2017; 31:1145-1151. [PMID: 29102937 DOI: 10.21873/invivo.11181] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2017] [Revised: 09/28/2017] [Accepted: 09/29/2017] [Indexed: 12/11/2022]
Abstract
BACKGROUND/AIM Metabolic syndrome-induced lifestyle-related diseases include diabetes mellitus (DM) and hypertension, and Zn-based compounds have effects on DM. We aimed to investigate the ameliorating effects of bis(hinokitiolato)Zn, [Zn(hkt)2] on lipid metabolism in the liver and kidney, histopathologically. MATERIALS AND METHODS We used a high-fat diet (HFD)-fed C57BL/6J mouse model and administered a diet containing 10-20 mg Zn/kg body weight (BW) or 20 mg pioglitazone/kg BW as the positive control. After the treatments, we collected blood, liver, and kidney samples and morphologically evaluated the mouse organs for fat accumulation. RESULTS After a 4-month HFD administration, ectopic fat deposition was detected in the liver and kidney. Furthermore, Zn accumulation in the liver and kidney increased following [Zn(hkt)2] treatment, that reduced lipid accumulations and lipid toxicity in these tissues. CONCLUSION The results of this study suggest that [Zn(hkt)2] could be a novel anti-dyslipidaemia compound for treating diet-induced obesity.
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Affiliation(s)
- Yuki Naito
- Department of Analytical and Bioinorganic Chemistry, Division of Analytical and Physical Chemistry, Kyoto Pharmaceutical University, Kyoto, Japan
| | - Yutaka Yoshikawa
- Department of Analytical and Bioinorganic Chemistry, Division of Analytical and Physical Chemistry, Kyoto Pharmaceutical University, Kyoto, Japan.,Department of Health, Sports, and Nutrition, Faculty of Health and Welfare, Kobe Women's University, Kobe, Japan
| | - Katsuhiko Yoshizawa
- Department of Food Sciences and Nutrition, School of Human Environmental Sciences, Mukogawa Women's University, Nishinomiya, Japan
| | - Akiko Takenouchi
- Department of Food Sciences and Nutrition, School of Human Environmental Sciences, Mukogawa Women's University, Nishinomiya, Japan
| | - Hiroyuki Yasui
- Department of Analytical and Bioinorganic Chemistry, Division of Analytical and Physical Chemistry, Kyoto Pharmaceutical University, Kyoto, Japan
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31
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Zinc Signals and Immunity. Int J Mol Sci 2017; 18:ijms18102222. [PMID: 29064429 PMCID: PMC5666901 DOI: 10.3390/ijms18102222] [Citation(s) in RCA: 149] [Impact Index Per Article: 21.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2017] [Revised: 10/13/2017] [Accepted: 10/19/2017] [Indexed: 01/11/2023] Open
Abstract
Zinc homeostasis is crucial for an adequate function of the immune system. Zinc deficiency as well as zinc excess result in severe disturbances in immune cell numbers and activities, which can result in increased susceptibility to infections and development of especially inflammatory diseases. This review focuses on the role of zinc in regulating intracellular signaling pathways in innate as well as adaptive immune cells. Main underlying molecular mechanisms and targets affected by altered zinc homeostasis, including kinases, caspases, phosphatases, and phosphodiesterases, will be highlighted in this article. In addition, the interplay of zinc homeostasis and the redox metabolism in affecting intracellular signaling will be emphasized. Key signaling pathways will be described in detail for the different cell types of the immune system. In this, effects of fast zinc flux, taking place within a few seconds to minutes will be distinguish from slower types of zinc signals, also designated as “zinc waves”, and late homeostatic zinc signals regarding prolonged changes in intracellular zinc.
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32
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Cellular adaptation to xenobiotics: Interplay between xenosensors, reactive oxygen species and FOXO transcription factors. Redox Biol 2017; 13:646-654. [PMID: 28818793 PMCID: PMC5558470 DOI: 10.1016/j.redox.2017.07.015] [Citation(s) in RCA: 89] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2017] [Revised: 07/20/2017] [Accepted: 07/28/2017] [Indexed: 12/22/2022] Open
Abstract
Cells adapt to an exposure to xenobiotics by upregulating the biosynthesis of proteins involved in xenobiotic metabolism. This is achieved largely via activation of cellular xenosensors that modulate gene expression. Biotransformation of xenobiotics frequently comes with the generation of reactive oxygen species (ROS). ROS, in turn, are known modulators of signal transduction processes. FOXO (forkhead box, class O) transcription factors are among the proteins deeply involved in the cellular response to stress, including oxidative stress elicited by the formation of ROS. On the one hand, FOXO activity is modulated by ROS, while on the other, FOXO target genes include many that encode antioxidant proteins – thereby establishing a regulatory circuit. Here, the role of ROS and of FOXOs in the regulation of xenosensor transcriptional activities will be discussed. Constitutive androstane receptor (CAR), pregnane X receptor (PXR), peroxisome proliferator-activated receptors (PPARs), arylhydrocarbon receptor (AhR) and nuclear factor erythroid 2-related factor 2 (Nrf2) all interact with FOXOs and/or ROS. The two latter not only fine-tune the activities of xenosensors but also mediate interactions between them. As a consequence, the emerging picture of an interplay between xenosensors, ROS and FOXO transcription factors suggests a modulatory role of ROS and FOXOs in the cellular adaptive response to xenobiotics. Exposure of cells to xenobiotics may trigger formation of reactive oxygen species. Xenosensors respond to xenobiotics by upregulation of xenobiotic metabolism. FOXO transcription factors modulate the activities of several xenosensors. ROS affect FOXO activity, and FOXO target genes include antioxidant proteins. FOXOs bridge xenobiotic-induced ROS generation and xenosensor regulation.
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33
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Pandini G, Satriano C, Pietropaolo A, Gianì F, Travaglia A, La Mendola D, Nicoletti VG, Rizzarelli E. The Inorganic Side of NGF: Copper(II) and Zinc(II) Affect the NGF Mimicking Signaling of the N-Terminus Peptides Encompassing the Recognition Domain of TrkA Receptor. Front Neurosci 2016; 10:569. [PMID: 28090201 PMCID: PMC5201159 DOI: 10.3389/fnins.2016.00569] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2016] [Accepted: 11/25/2016] [Indexed: 12/31/2022] Open
Abstract
The nerve growth factor (NGF) N-terminus peptide, NGF(1–14), and its acetylated form, Ac-NGF(1–14), were investigated to scrutinize the ability of this neurotrophin domain to mimic the whole protein. Theoretical calculations demonstrated that non-covalent forces assist the molecular recognition of TrkA receptor by both peptides. Combined parallel tempering/docking simulations discriminated the effect of the N-terminal acetylation on the recognition of NGF(1–14) by the domain 5 of TrkA (TrkA-D5). Experimental findings demonstrated that both NGF(1–14) and Ac-NGF(1–14) activate TrkA signaling pathways essential for neuronal survival. The NGF-induced TrkA internalization was slightly inhibited in the presence of Cu2+ and Zn2+ ions, whereas the metal ions elicited the NGF(1–14)-induced internalization of TrkA and no significant differences were found in the weak Ac-NGF(1–14)-induced receptor internalization. The crucial role of the metals was confirmed by experiments with the metal-chelator bathocuproine disulfonic acid, which showed different inhibitory effects in the signaling cascade, due to different metal affinity of NGF, NGF(1–14) and Ac-NGF(1–14). The NGF signaling cascade, activated by the two peptides, induced CREB phosphorylation, but the copper addition further stimulated the Akt, ERK and CREB phosphorylation in the presence of NGF and NGF(1–14) only. A dynamic and quick influx of both peptides into PC12 cells was tracked by live cell imaging with confocal microscopy. A significant role of copper ions was found in the modulation of peptide sub-cellular localization, especially at the nuclear level. Furthermore, a strong copper ionophoric ability of NGF(1–14) was measured. The Ac-NGF(1–14) peptide, which binds copper ions with a lower stability constant than NGF(1–14), exhibited a lower nuclear localization with respect to the total cellular uptake. These findings were correlated to the metal-induced increase of CREB and BDNF expression caused by NGF(1–14) stimulation. In summary, we here validated NGF(1–14) and Ac-NGF(1–14) as first examples of monomer and linear peptides able to activate the NGF-TrkA signaling cascade. Metal ions modulated the activity of both NGF protein and the NGF-mimicking peptides. Such findings demonstrated that NGF(1–14) sequence can reproduce the signal transduction of whole protein, therefore representing a very promising drug candidate for further pre-clinical studies.
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Affiliation(s)
- Giuseppe Pandini
- Endocrinology, Department of Clinical and Experimental Medicine, Garibaldi-Nesima Medical Center, University of CataniaCatania, Italy; Institute of Biostructures and Bioimages - Catania, National Research CouncilCatania, Italy
| | - Cristina Satriano
- Department of Chemical Sciences, University of CataniaCatania, Italy; Consorzio Interuniversitario di Ricerca in Chimica dei Metalli nei Sistemi BiologiciBari, Italy
| | | | - Fiorenza Gianì
- Endocrinology, Department of Clinical and Experimental Medicine, Garibaldi-Nesima Medical Center, University of CataniaCatania, Italy; Institute of Biostructures and Bioimages - Catania, National Research CouncilCatania, Italy
| | | | - Diego La Mendola
- Consorzio Interuniversitario di Ricerca in Chimica dei Metalli nei Sistemi BiologiciBari, Italy; Department of Pharmacy, University of PisaPisa, Italy
| | - Vincenzo G Nicoletti
- Consorzio Interuniversitario di Ricerca in Chimica dei Metalli nei Sistemi BiologiciBari, Italy; Section of Medical Biochemistry, Department of Biomedical and Biotechnological Sciences (BIOMETEC), University of CataniaCatania, Italy
| | - Enrico Rizzarelli
- Institute of Biostructures and Bioimages - Catania, National Research CouncilCatania, Italy; Department of Chemical Sciences, University of CataniaCatania, Italy; Consorzio Interuniversitario di Ricerca in Chimica dei Metalli nei Sistemi BiologiciBari, Italy
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Taylor KA, Pugh N. The contribution of zinc to platelet behaviour during haemostasis and thrombosis. Metallomics 2016; 8:144-55. [PMID: 26727074 DOI: 10.1039/c5mt00251f] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Platelets are the primary cellular determinants of haemostasis and pathological thrombus formation leading to myocardial infarction and stroke. Following vascular injury or atherosclerotic plaque rupture, platelets are recruited to sites of damage and undergo activation induced by a variety of soluble and/or insoluble agonists. Platelet activation is a multi-step process culminating in the formation of thrombi, which contribute to the haemostatic process. Zinc (Zn(2+)) is acknowledged as an important signalling molecule in a diverse range of cellular systems, however there is limited understanding of the influence of Zn(2+) on platelet behaviour during thrombus formation. This review evaluates the contributions of exogenous and intracellular Zn(2+) to platelet function and assesses the potential pathophysiological implications of Zn(2+) signalling. We also provide a speculative assessment of the mechanisms by which platelets could respond to changes in extracellular and intracellular Zn(2+) concentration.
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Affiliation(s)
- K A Taylor
- Department of Biomedical and Forensic Sciences, Faculty of Science and Technology, Anglia Ruskin University, Cambridge, CB1 1PT, UK.
| | - N Pugh
- Department of Biomedical and Forensic Sciences, Faculty of Science and Technology, Anglia Ruskin University, Cambridge, CB1 1PT, UK.
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35
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Bellomo E, Birla Singh K, Massarotti A, Hogstrand C, Maret W. The metal face of protein tyrosine phosphatase 1B. Coord Chem Rev 2016; 327-328:70-83. [PMID: 27890939 PMCID: PMC5115158 DOI: 10.1016/j.ccr.2016.07.002] [Citation(s) in RCA: 67] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2016] [Revised: 07/01/2016] [Accepted: 07/01/2016] [Indexed: 01/12/2023]
Abstract
A new paradigm in metallobiochemistry describes the activation of inactive metalloenzymes by metal ion removal. Protein tyrosine phosphatases (PTPs) do not seem to require a metal ion for enzymatic activity. However, both metal cations and metal anions modulate their enzymatic activity. One binding site is the phosphate binding site at the catalytic cysteine residue. Oxyanions with structural similarity to phosphate, such as vanadate, inhibit the enzyme with nanomolar to micromolar affinities. In addition, zinc ions (Zn2+) inhibit with picomolar to nanomolar affinities. We mapped the cation binding site close to the anion binding site and established a specific mechanism of inhibition occurring only in the closed conformation of the enzyme when the catalytic cysteine is phosphorylated and the catalytic aspartate moves into the active site. We discuss this dual inhibition by anions and cations here for PTP1B, the most thoroughly investigated protein tyrosine phosphatase. The significance of the inhibition in phosphorylation signaling is becoming apparent only from the functions of PTP1B in the biological context of metal cations as cellular signaling ions. Zinc ion signals complement redox signals but provide a different type of control and longer lasting inhibition on a biological time scale owing to the specificity and affinity of zinc ions for coordination environments. Inhibitor design for PTP1B and other PTPs is a major area of research activity and interest owing to their prominent roles in metabolic regulation in health and disease, in particular cancer and diabetes. Our results explain the apparent dichotomy of both cations (Zn2+) and oxyanions such as vanadate inhibiting PTP1B and having insulin-enhancing ("anti-diabetic") effects and suggest different approaches, namely targeting PTPs in the cell by affecting their physiological modulators and considering a metallodrug approach that builds on the knowledge of the insulin-enhancing effects of both zinc and vanadium compounds.
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Affiliation(s)
- Elisa Bellomo
- Metal Metabolism Group, Division of Diabetes and Nutritional Sciences, Faculty of Life Sciences and Medicine, King’s College London, London, UK
| | - Kshetrimayum Birla Singh
- Metal Metabolism Group, Division of Diabetes and Nutritional Sciences, Faculty of Life Sciences and Medicine, King’s College London, London, UK
| | - Alberto Massarotti
- Dipartimento di Scienze del Farmaco, Università del Piemonte Orientale “A. Avogadro”, Novara, Italy
| | - Christer Hogstrand
- Metal Metabolism Group, Division of Diabetes and Nutritional Sciences, Faculty of Life Sciences and Medicine, King’s College London, London, UK
| | - Wolfgang Maret
- Metal Metabolism Group, Division of Diabetes and Nutritional Sciences, Faculty of Life Sciences and Medicine, King’s College London, London, UK
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36
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Maywald M, Rink L. Zinc supplementation induces CD4+CD25+Foxp3+ antigen-specific regulatory T cells and suppresses IFN-γ production by upregulation of Foxp3 and KLF-10 and downregulation of IRF-1. Eur J Nutr 2016; 56:1859-1869. [DOI: 10.1007/s00394-016-1228-7] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2016] [Accepted: 05/20/2016] [Indexed: 12/20/2022]
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Rice JM, Zweifach A, Lynes MA. Metallothionein regulates intracellular zinc signaling during CD4(+) T cell activation. BMC Immunol 2016; 17:13. [PMID: 27251638 PMCID: PMC4890327 DOI: 10.1186/s12865-016-0151-2] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2015] [Accepted: 05/23/2016] [Indexed: 01/09/2023] Open
Abstract
BACKGROUND The ultra-low redox potential and zinc binding properties of the intracellular pool of mammalian metallothioneins (MT) suggest a role for MT in the transduction of redox signals into intracellular zinc signals. Increased expression of MT after exposure to heavy metals, oxidative stress, or inflammatory cytokines leads to an increased intracellular redox-mobilizable zinc pool that can affect downstream zinc-sensitive signaling pathways. CD4(+) T helper cells are poised to be influenced by MT transduced zinc signaling because they produce intracellular reactive oxygen species following activation through the T cell receptor and are sensitive to small changes in intracellular [Zn(2+)]. RESULTS MT expression and intracellular [Zn(2+)] are both increased during primary activation and expansion of naïve CD4(+) T cells into the Tr1 phenotype in vitro. When Tr1 cells from wildtype mice are compared with congenic mice lacking functional Mt1 and Mt2 genes, the expression of intracellular MT is associated with a greater increase in intracellular [Zn(2+)] immediately following exposure to reactive oxygen species or upon restimulation through the T cell receptor. The release of Zn(2+) from MT is associated with a greater increase in p38 MAPK activation following restimulation and decreased p38 MAPK activation in MT knockout Tr1 cells can be rescued by increasing intracellular [Zn(2+)]. Additionally, IL-10 secretion is increased in MT knockout Tr1 cells compared with wildtype controls and this increase is prevented when the intracellular [Zn(2+)] is increased experimentally. CONCLUSIONS Differences in zinc signaling associated with MT expression appear to be a result of preferential oxidation of MT and concomitant release of Zn(2+). Although zinc is released from many proteins following oxidation, release is greater when the cell contains an intracellular pool of MT. By expressing MT in response to certain environmental conditions, CD4(+) T cells are able to more efficiently release intracellular zinc and regulate signaling pathways following stimulation. The link between MT expression and increased zinc signaling following activation represents an important immunomodulatory mechanism of MT and illuminates the complex role MT plays in shaping immune responses.
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Affiliation(s)
- James M Rice
- Department of Molecular and Cell Biology, University of Connecticut, 91 North Eagleville Road, Unit 3125, Storrs, CT, 06269, USA. .,Present address: Vascular Biology Program, Harvard Medical School, Boston Children's Hospital, 300 Longwood Ave., Boston, 02115, MA, USA.
| | - Adam Zweifach
- Department of Molecular and Cell Biology, University of Connecticut, 91 North Eagleville Road, Unit 3125, Storrs, CT, 06269, USA
| | - Michael A Lynes
- Department of Molecular and Cell Biology, University of Connecticut, 91 North Eagleville Road, Unit 3125, Storrs, CT, 06269, USA
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Naito Y, Yoshikawa Y, Masuda K, Yasui H. Bis(hinokitiolato)zinc complex ([Zn(hkt)2]) activates Akt/protein kinase B independent of insulin signal transduction. J Biol Inorg Chem 2016; 21:537-48. [PMID: 27251140 DOI: 10.1007/s00775-016-1364-9] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2016] [Accepted: 05/17/2016] [Indexed: 12/16/2022]
Abstract
Since many Zn complexes have been developed to enhance the insulin-like activity and increase the exposure and residence of Zn in the animal body, these complexes are recognized as one of the new candidates with action mechanism different from existing anti-diabetic drugs. However, the molecular mechanism by which Zn complexes exert an anti-DM effect is unknown. Therefore, we evaluated the activity of Zn complexes, especially related to the phosphorylation of insulin signaling pathway components. We focused on the insulin-like effects of the bis(hinokitiolato)zinc complex, [Zn(hkt)2], using 3T3-L1 adipocytes. [Zn(hkt)2] was taken up by cells and induced Akt phosphorylation in a time-dependent manner. Additionally, it showed inhibitory activity against PTP1B and PTEN, which are major negative regulators of insulin signaling. It did not promote the phosphorylation of IR (insulin receptor)-β or IRS (insulin receptor substrate)-1 by itself, but in combination with insulin, it enhanced the phosphorylation of IRβ. We conclude that [Zn(hkt)2] has effects on the proteins of insulin signaling pathway without insulin receptor mediation, and [Zn(hkt)2] promotes insulin function and shows the anti-DM effects. Thus, [Zn(hkt)2] may be the basis for improved DM treatments.
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Affiliation(s)
- Yuki Naito
- Department of Analytical and Bioinorganic Chemistry, Division of Analytical and Physical Sciences, Kyoto Pharmaceutical University, 5 Nakauchi-cho, Misasagi, Yamashina-ku, Kyoto, 607-8414, Japan
| | - Yutaka Yoshikawa
- Department of Analytical and Bioinorganic Chemistry, Division of Analytical and Physical Sciences, Kyoto Pharmaceutical University, 5 Nakauchi-cho, Misasagi, Yamashina-ku, Kyoto, 607-8414, Japan.
- Department of Health, Sports, and Nutrition, Faculty of Health and Welfare, Kobe Women's University, 4-7-2 Minatojima-nakamachi, Chuo-ku, Kobe, 650-0046, Japan.
| | - Kazufumi Masuda
- Department of Physical Chemistry, Graduate School of Clinical Pharmacy, Shujitsu University, 1-6-1 Nishigawara, Naka-ku, Okayama, 703-8516, Japan
| | - Hiroyuki Yasui
- Department of Analytical and Bioinorganic Chemistry, Division of Analytical and Physical Sciences, Kyoto Pharmaceutical University, 5 Nakauchi-cho, Misasagi, Yamashina-ku, Kyoto, 607-8414, Japan.
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Rosenkranz E, Metz CHD, Maywald M, Hilgers RD, Weßels I, Senff T, Haase H, Jäger M, Ott M, Aspinall R, Plümäkers B, Rink L. Zinc supplementation induces regulatory T cells by inhibition of Sirt-1 deacetylase in mixed lymphocyte cultures. Mol Nutr Food Res 2015; 60:661-71. [PMID: 26614004 DOI: 10.1002/mnfr.201500524] [Citation(s) in RCA: 75] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2015] [Revised: 10/21/2015] [Accepted: 11/12/2015] [Indexed: 01/18/2023]
Abstract
SCOPE Zinc is an essential trace element, regulating immune function. Its deficiency results in immune dysfunction and transplant rejection. In here, a benefit of zinc supplementation for the induction of tolerance was investigated, focusing on the TH 1-dominated allogeneic immune reaction. METHODS AND RESULTS Allogeneic immune reaction was modeled by mixed lymphocyte culture (MLC). The effect of zinc supplementation was monitored via expression of cytokines and surface lineage markers using ELISA and flow cytometry. Epigenetic analyses were performed to investigate mechanisms underlying zinc-induced changes in regulatory T cell (Treg) activation. Results reveal that Tregs are induced when MLCs are treated with 50 μM zinc causing a decrease in IFNγ production. IL-2 and IL-10 expression were not affected. The teleology of this effect includes the inhibition of histone deacetylase Sirt-1-mediated Foxp3 deacetylation, resulting in its decreased degradation. CONCLUSION In conclusion, zinc should be considered to prevent graft-versus-host disease (GVHD) as it is capable of stabilizing iTregs, resulting in increased numbers of this cell type while not suppressing the immune system.
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Affiliation(s)
- Eva Rosenkranz
- Institute of Immunology, Faculty of Medicine, RWTH Aachen University, University Hospital, Aachen, Germany
| | - Claudia H D Metz
- Institute of Immunology, Faculty of Medicine, RWTH Aachen University, University Hospital, Aachen, Germany
| | - Martina Maywald
- Institute of Immunology, Faculty of Medicine, RWTH Aachen University, University Hospital, Aachen, Germany
| | - Ralf-Dieter Hilgers
- Institute of Medical Statistics, Faculty of Medicine, RWTH Aachen University, University Hospital, Aachen, Germany
| | - Inga Weßels
- Institute of Immunology, Faculty of Medicine, RWTH Aachen University, University Hospital, Aachen, Germany
| | - Tina Senff
- Institute of Immunology, Faculty of Medicine, RWTH Aachen University, University Hospital, Aachen, Germany
| | - Hajo Haase
- Institute of Immunology, Faculty of Medicine, RWTH Aachen University, University Hospital, Aachen, Germany.,Department of Food Chemistry and Toxicology, Berlin Institute of Technology, Berlin, Germany
| | - Maximilian Jäger
- Institute of Immunology, Faculty of Medicine, RWTH Aachen University, University Hospital, Aachen, Germany
| | - Melanie Ott
- Gladstone Institute of Virology and Immunology, University of California, San Francisco, CA, USA
| | - Richard Aspinall
- Translational Medicine Group, Cranfield University, Cranfield, Bedfordshire, UK
| | - Birgit Plümäkers
- Institute of Immunology, Faculty of Medicine, RWTH Aachen University, University Hospital, Aachen, Germany
| | - Lothar Rink
- Institute of Immunology, Faculty of Medicine, RWTH Aachen University, University Hospital, Aachen, Germany
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Rosenkranz E, Maywald M, Hilgers RD, Brieger A, Clarner T, Kipp M, Plümäkers B, Meyer S, Schwerdtle T, Rink L. Induction of regulatory T cells in Th1-/Th17-driven experimental autoimmune encephalomyelitis by zinc administration. J Nutr Biochem 2015; 29:116-23. [PMID: 26895672 DOI: 10.1016/j.jnutbio.2015.11.010] [Citation(s) in RCA: 48] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2015] [Revised: 11/06/2015] [Accepted: 11/20/2015] [Indexed: 12/31/2022]
Abstract
The essential trace element zinc is indispensable for proper immune function as zinc deficiency accompanies immune defects and dysregulations like allergies, autoimmunity and an increased presence of transplant rejection. This point to the importance of the physiological and dietary control of zinc levels for a functioning immune system. This study investigates the capacity of zinc to induce immune tolerance. The beneficial impact of physiological zinc supplementation of 6 μg/day (0.3mg/kg body weight) or 30 μg/day (1.5mg/kg body weight) on murine experimental autoimmune encephalomyelitis (EAE), an animal model for multiple sclerosis with a Th1/Th17 (Th, T helper) cell-dominated immunopathogenesis, was analyzed. Zinc administration diminished EAE scores in C57BL/6 mice in vivo (P<.05), reduced Th17 RORγT(+) cells (P<.05) and significantly increased inducible iTreg cells (P<.05). While Th17 cells decreased systemically, iTreg cells accumulated in the central nervous system. Cumulatively, zinc supplementation seems to be capable to induce tolerance in unwanted immune reactions by increasing iTreg cells. This makes zinc a promising future tool for treating autoimmune diseases without suppressing the immune system.
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Affiliation(s)
- Eva Rosenkranz
- Institute of Immunology, Faculty of Medicine, RWTH Aachen University, University Hospital, Pauwelstrasse 30, 52074 Aachen, Germany
| | - Martina Maywald
- Institute of Immunology, Faculty of Medicine, RWTH Aachen University, University Hospital, Pauwelstrasse 30, 52074 Aachen, Germany
| | - Ralf-Dieter Hilgers
- Institute of Medical Statistics, Faculty of Medicine, RWTH Aachen University, University Hospital, Pauwelstrasse 30, 52074 Aachen, Germany
| | - Anne Brieger
- Institute of Immunology, Faculty of Medicine, RWTH Aachen University, University Hospital, Pauwelstrasse 30, 52074 Aachen, Germany
| | - Tim Clarner
- Institute of Neuroanatomy, Faculty of Medicine, RWTH Aachen University, University Hospital, Pauwelstrasse 30, 52074 Aachen, Germany
| | - Markus Kipp
- Institute of Neuroanatomy, Faculty of Medicine, RWTH Aachen University, University Hospital, Pauwelstrasse 30, 52074 Aachen, Germany; Department of Neuroanatomy, Ludwig-Maximilians University of Munich, Pettenkoferstrasse 11, 80336 Munich, Germany
| | - Birgit Plümäkers
- Institute of Immunology, Faculty of Medicine, RWTH Aachen University, University Hospital, Pauwelstrasse 30, 52074 Aachen, Germany
| | - Sören Meyer
- Institute of Nutritional Science, University of Potsdam, Arthur-Scheunert-Allee 114-116, 14558 Nuthetal, Germany
| | - Tanja Schwerdtle
- Institute of Nutritional Science, University of Potsdam, Arthur-Scheunert-Allee 114-116, 14558 Nuthetal, Germany
| | - Lothar Rink
- Institute of Immunology, Faculty of Medicine, RWTH Aachen University, University Hospital, Pauwelstrasse 30, 52074 Aachen, Germany.
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Zinc enhances the number of regulatory T cells in allergen-stimulated cells from atopic subjects. Eur J Nutr 2015; 56:557-567. [PMID: 26589301 DOI: 10.1007/s00394-015-1100-1] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2015] [Accepted: 11/04/2015] [Indexed: 12/15/2022]
Abstract
PURPOSE The trace element zinc is essential for immune function and its regulation. Since zinc deficiency and allergic hyperresponsive reactions are often accompanied, the influence of zinc on allergen-induced cell growth, CD4+ regulatory T (Treg) cell numbers and cytokine expression during allergic immune reactions was investigated. METHODS Peripheral blood mononuclear cells (PBMCs) from non-atopic and atopic subjects were treated with timothy grass allergen pre-incubated with or without zinc. Proliferation was determined by analyzing the incorporation of 3H-thymidine. Intracellular zinc and Foxp3 levels and cell surface antigens were measured by FACS, cytokine expression by ELISA and real-time PCR. RESULTS Incubation with 50 μM zinc sulfate (Zn50) enhances cytosolic zinc concentrations in CD3+ T cells. The data also reveal that the combination of Zn50 plus allergen significantly reduces PBMC proliferation of atopic subjects. Additionally, Zn50 plus allergen enhances Th1 cytokine responses shown by increased interferon (IFN)-γ/interleukin (IL)-10 ratios as well as enhanced tumor necrosis factor-α release. In response to allergen, zinc increases Treg cells and upregulates the mRNA expression of cytotoxic T-lymphocyte antigen-4 in atopic subjects. Interestingly, Zn50 alone leads to an increase of CD4+CD25high(hi)+ cells in atopic and non-atopic subjects. CONCLUSIONS Zinc may regulate unwanted hyperresponsive immune reactions by suppressing proliferation through a significant shift from IL-10 to the Th1 cytokine IFN-γ, and enhanced regulatory T cell numbers. Therefore, zinc supplementation may be a promising tool for the therapy of allergies, without negatively affecting the immune system.
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Mitchell RK, Hu M, Chabosseau PL, Cane MC, Meur G, Bellomo EA, Carzaniga R, Collinson LM, Li WH, Hodson DJ, Rutter GA. Molecular Genetic Regulation of Slc30a8/ZnT8 Reveals a Positive Association With Glucose Tolerance. Mol Endocrinol 2015; 30:77-91. [PMID: 26584158 PMCID: PMC4995240 DOI: 10.1210/me.2015-1227] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Abstract
Zinc transporter 8 (ZnT8), encoded by SLC30A8, is chiefly expressed within pancreatic islet cells, where it mediates zinc (Zn2+) uptake into secretory granules. Although a common nonsynonymous polymorphism (R325W), which lowers activity, is associated with increased type 2 diabetes (T2D) risk, rare inactivating mutations in SLC30A8 have been reported to protect against T2D. Here, we generate and characterize new mouse models to explore the impact on glucose homeostasis of graded changes in ZnT8 activity in the β-cell. Firstly, Slc30a8 was deleted highly selectively in these cells using the novel deleter strain, Ins1Cre. The resultant Ins1CreZnT8KO mice displayed significant (P < .05) impairments in glucose tolerance at 10 weeks of age vs littermate controls, and glucose-induced increases in circulating insulin were inhibited in vivo. Although insulin release from Ins1CreZnT8KO islets was normal, Zn2+ release was severely impaired. Conversely, transgenic ZnT8Tg mice, overexpressing the transporter inducibly in the adult β-cell using an insulin promoter-dependent Tet-On system, showed significant (P < .01) improvements in glucose tolerance compared with control animals. Glucose-induced insulin secretion from ZnT8Tg islets was severely impaired, whereas Zn2+ release was significantly enhanced. Our findings demonstrate that glucose homeostasis in the mouse improves as β-cell ZnT8 activity increases, and remarkably, these changes track Zn2+ rather than insulin release in vitro. Activation of ZnT8 in β-cells might therefore provide the basis of a novel approach to treating T2D.
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Affiliation(s)
- Ryan K Mitchell
- Section of Cell Biology and Functional Genomics (R.K.M., M.H., P.L.C., M.C.C., G.M., E.A.B., D.J.H., G.A.R.), Division of Diabetes, Endocrinology and Metabolism, Imperial Centre for Translational and Experimental Medicine, Imperial College London, London W12 0NN, United Kingdom; Electron Microscopy Unit (R.C., L.M.C.), Francis Crick Institute, Lincoln's Inn Fields, London WC2A 3LY, United Kingdom; and Department of Cell Biology and Biochemistry (W.-H.L.), The University of Texas Southwestern Medical Center, Dallas, Texas 75390
| | - Ming Hu
- Section of Cell Biology and Functional Genomics (R.K.M., M.H., P.L.C., M.C.C., G.M., E.A.B., D.J.H., G.A.R.), Division of Diabetes, Endocrinology and Metabolism, Imperial Centre for Translational and Experimental Medicine, Imperial College London, London W12 0NN, United Kingdom; Electron Microscopy Unit (R.C., L.M.C.), Francis Crick Institute, Lincoln's Inn Fields, London WC2A 3LY, United Kingdom; and Department of Cell Biology and Biochemistry (W.-H.L.), The University of Texas Southwestern Medical Center, Dallas, Texas 75390
| | - Pauline L Chabosseau
- Section of Cell Biology and Functional Genomics (R.K.M., M.H., P.L.C., M.C.C., G.M., E.A.B., D.J.H., G.A.R.), Division of Diabetes, Endocrinology and Metabolism, Imperial Centre for Translational and Experimental Medicine, Imperial College London, London W12 0NN, United Kingdom; Electron Microscopy Unit (R.C., L.M.C.), Francis Crick Institute, Lincoln's Inn Fields, London WC2A 3LY, United Kingdom; and Department of Cell Biology and Biochemistry (W.-H.L.), The University of Texas Southwestern Medical Center, Dallas, Texas 75390
| | - Matthew C Cane
- Section of Cell Biology and Functional Genomics (R.K.M., M.H., P.L.C., M.C.C., G.M., E.A.B., D.J.H., G.A.R.), Division of Diabetes, Endocrinology and Metabolism, Imperial Centre for Translational and Experimental Medicine, Imperial College London, London W12 0NN, United Kingdom; Electron Microscopy Unit (R.C., L.M.C.), Francis Crick Institute, Lincoln's Inn Fields, London WC2A 3LY, United Kingdom; and Department of Cell Biology and Biochemistry (W.-H.L.), The University of Texas Southwestern Medical Center, Dallas, Texas 75390
| | - Gargi Meur
- Section of Cell Biology and Functional Genomics (R.K.M., M.H., P.L.C., M.C.C., G.M., E.A.B., D.J.H., G.A.R.), Division of Diabetes, Endocrinology and Metabolism, Imperial Centre for Translational and Experimental Medicine, Imperial College London, London W12 0NN, United Kingdom; Electron Microscopy Unit (R.C., L.M.C.), Francis Crick Institute, Lincoln's Inn Fields, London WC2A 3LY, United Kingdom; and Department of Cell Biology and Biochemistry (W.-H.L.), The University of Texas Southwestern Medical Center, Dallas, Texas 75390
| | - Elisa A Bellomo
- Section of Cell Biology and Functional Genomics (R.K.M., M.H., P.L.C., M.C.C., G.M., E.A.B., D.J.H., G.A.R.), Division of Diabetes, Endocrinology and Metabolism, Imperial Centre for Translational and Experimental Medicine, Imperial College London, London W12 0NN, United Kingdom; Electron Microscopy Unit (R.C., L.M.C.), Francis Crick Institute, Lincoln's Inn Fields, London WC2A 3LY, United Kingdom; and Department of Cell Biology and Biochemistry (W.-H.L.), The University of Texas Southwestern Medical Center, Dallas, Texas 75390
| | - Raffaella Carzaniga
- Section of Cell Biology and Functional Genomics (R.K.M., M.H., P.L.C., M.C.C., G.M., E.A.B., D.J.H., G.A.R.), Division of Diabetes, Endocrinology and Metabolism, Imperial Centre for Translational and Experimental Medicine, Imperial College London, London W12 0NN, United Kingdom; Electron Microscopy Unit (R.C., L.M.C.), Francis Crick Institute, Lincoln's Inn Fields, London WC2A 3LY, United Kingdom; and Department of Cell Biology and Biochemistry (W.-H.L.), The University of Texas Southwestern Medical Center, Dallas, Texas 75390
| | - Lucy M Collinson
- Section of Cell Biology and Functional Genomics (R.K.M., M.H., P.L.C., M.C.C., G.M., E.A.B., D.J.H., G.A.R.), Division of Diabetes, Endocrinology and Metabolism, Imperial Centre for Translational and Experimental Medicine, Imperial College London, London W12 0NN, United Kingdom; Electron Microscopy Unit (R.C., L.M.C.), Francis Crick Institute, Lincoln's Inn Fields, London WC2A 3LY, United Kingdom; and Department of Cell Biology and Biochemistry (W.-H.L.), The University of Texas Southwestern Medical Center, Dallas, Texas 75390
| | - Wen-Hong Li
- Section of Cell Biology and Functional Genomics (R.K.M., M.H., P.L.C., M.C.C., G.M., E.A.B., D.J.H., G.A.R.), Division of Diabetes, Endocrinology and Metabolism, Imperial Centre for Translational and Experimental Medicine, Imperial College London, London W12 0NN, United Kingdom; Electron Microscopy Unit (R.C., L.M.C.), Francis Crick Institute, Lincoln's Inn Fields, London WC2A 3LY, United Kingdom; and Department of Cell Biology and Biochemistry (W.-H.L.), The University of Texas Southwestern Medical Center, Dallas, Texas 75390
| | - David J Hodson
- Section of Cell Biology and Functional Genomics (R.K.M., M.H., P.L.C., M.C.C., G.M., E.A.B., D.J.H., G.A.R.), Division of Diabetes, Endocrinology and Metabolism, Imperial Centre for Translational and Experimental Medicine, Imperial College London, London W12 0NN, United Kingdom; Electron Microscopy Unit (R.C., L.M.C.), Francis Crick Institute, Lincoln's Inn Fields, London WC2A 3LY, United Kingdom; and Department of Cell Biology and Biochemistry (W.-H.L.), The University of Texas Southwestern Medical Center, Dallas, Texas 75390
| | - Guy A Rutter
- Section of Cell Biology and Functional Genomics (R.K.M., M.H., P.L.C., M.C.C., G.M., E.A.B., D.J.H., G.A.R.), Division of Diabetes, Endocrinology and Metabolism, Imperial Centre for Translational and Experimental Medicine, Imperial College London, London W12 0NN, United Kingdom; Electron Microscopy Unit (R.C., L.M.C.), Francis Crick Institute, Lincoln's Inn Fields, London WC2A 3LY, United Kingdom; and Department of Cell Biology and Biochemistry (W.-H.L.), The University of Texas Southwestern Medical Center, Dallas, Texas 75390
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Abstract
Zinc is an important micronutrient, essential in the diet to avoid a variety of conditions associated with malnutrition such as diarrhoea and alopecia. Lowered circulating levels of zinc are also found in diabetes mellitus, a condition which affects one in twelve of the adult population and whose treatments consume approximately 10 % of healthcare budgets. Zn2+ ions are essential for a huge range of cellular functions and, in the specialised pancreatic β-cell, for the storage of insulin within the secretory granule. Correspondingly, genetic variants in the SLC30A8 gene, which encodes the diabetes-associated granule-resident Zn2+ transporter ZnT8, are associated with an altered risk of type 2 diabetes. Here, we focus on (i) recent advances in measuring free zinc concentrations dynamically in subcellular compartments, and (ii) studies dissecting the role of intracellular zinc in the control of glucose homeostasis in vitro and in vivo. We discuss the effects on insulin secretion and action of deleting or over-expressing Slc30a8 highly selectively in the pancreatic β-cell, and the role of zinc in insulin signalling. While modulated by genetic variability, healthy levels of dietary zinc, and hence normal cellular zinc homeostasis, are likely to play an important role in the proper release and action of insulin to maintain glucose homeostasis and lower diabetes risk.
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Klotz LO, Sánchez-Ramos C, Prieto-Arroyo I, Urbánek P, Steinbrenner H, Monsalve M. Redox regulation of FoxO transcription factors. Redox Biol 2015; 6:51-72. [PMID: 26184557 PMCID: PMC4511623 DOI: 10.1016/j.redox.2015.06.019] [Citation(s) in RCA: 501] [Impact Index Per Article: 55.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2015] [Revised: 06/25/2015] [Accepted: 06/30/2015] [Indexed: 12/19/2022] Open
Abstract
Transcription factors of the forkhead box, class O (FoxO) family are important regulators of the cellular stress response and promote the cellular antioxidant defense. On one hand, FoxOs stimulate the transcription of genes coding for antioxidant proteins located in different subcellular compartments, such as in mitochondria (i.e. superoxide dismutase-2, peroxiredoxins 3 and 5) and peroxisomes (catalase), as well as for antioxidant proteins found extracellularly in plasma (e.g., selenoprotein P and ceruloplasmin). On the other hand, reactive oxygen species (ROS) as well as other stressful stimuli that elicit the formation of ROS, may modulate FoxO activity at multiple levels, including posttranslational modifications of FoxOs (such as phosphorylation and acetylation), interaction with coregulators, alterations in FoxO subcellular localization, protein synthesis and stability. Moreover, transcriptional and posttranscriptional control of the expression of genes coding for FoxOs is sensitive to ROS. Here, we review these aspects of FoxO biology focusing on redox regulation of FoxO signaling, and with emphasis on the interplay between ROS and FoxOs under various physiological and pathophysiological conditions. Of particular interest are the dual role played by FoxOs in cancer development and their key role in whole body nutrient homeostasis, modulating metabolic adaptations and/or disturbances in response to low vs. high nutrient intake. Examples discussed here include calorie restriction and starvation as well as adipogenesis, obesity and type 2 diabetes.
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Affiliation(s)
- Lars-Oliver Klotz
- Institute of Nutrition, Department of Nutrigenomics, Friedrich-Schiller-Universität Jena, Dornburger Straße 29, 07743 Jena, Germany.
| | - Cristina Sánchez-Ramos
- Instituto de Investigaciones Biomédicas "Alberto Sols" (CSIC-UAM), Arturo Duperier, 4, 28029 Madrid, Spain
| | - Ignacio Prieto-Arroyo
- Instituto de Investigaciones Biomédicas "Alberto Sols" (CSIC-UAM), Arturo Duperier, 4, 28029 Madrid, Spain
| | - Pavel Urbánek
- Institute of Nutrition, Department of Nutrigenomics, Friedrich-Schiller-Universität Jena, Dornburger Straße 29, 07743 Jena, Germany
| | - Holger Steinbrenner
- Institute of Nutrition, Department of Nutrigenomics, Friedrich-Schiller-Universität Jena, Dornburger Straße 29, 07743 Jena, Germany
| | - Maria Monsalve
- Instituto de Investigaciones Biomédicas "Alberto Sols" (CSIC-UAM), Arturo Duperier, 4, 28029 Madrid, Spain.
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Yang H, Keen CL, Lanoue L. Influence of intracellular zinc on cultures of rat cardiac neural crest cells. ACTA ACUST UNITED AC 2015; 104:11-22. [PMID: 25689142 DOI: 10.1002/bdrb.21135] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2014] [Accepted: 01/08/2015] [Indexed: 11/06/2022]
Abstract
BACKGROUND Developmental zinc (Zn) deficiency increases the incidence of heart anomalies in rat fetuses, in regions and structures derived from the outflow tract. Given that the development of the outflow tract requires the presence of cardiac neural crest cells (cNCC), we speculated that Zn deficiency selectively kills cNCC and could lead to heart malformations. METHODS Cardiac NCC were isolated from E10.5 rat embryos and cultured in control media (CTRL), media containing 3 μM of the cell permeable metal chelator N, N, N', N'-tetrakis (2-pyridylmethyl) ethylene diamine (TPEN), or in TPEN-treated media supplemented with 3 μM Zn (TPEN + Zn). Cardiac NCC were collected after 6, 8, and 24 h of treatment to assess cell viability, proliferation, and apoptosis. RESULTS The addition of TPEN to the culture media reduced free intracellular Zn pools and cell viability as assessed by low ATP production, compared to cells grown in control or Zn-supplemented media. There was an accumulation of reactive oxygen species, a release of mitochondrial cytochrome c into the cytoplasm, and an increased cellular expression of active caspase-3 in TPEN-treated cNCC compared to cNCC cultured in CTRL or TPEN + Zn media. CONCLUSION Zn deficiency can result in oxidative stress in cNCC, and subsequent decreases in their population and metabolic activity. These data support the concept that Zn deficiency associated developmental heart defects may arise in part as a consequence of altered cNCC metabolism.
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Affiliation(s)
- Hsunhui Yang
- Department of Nutrition, University of California, Davis, California
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Heiliger E, Osmanagic A, Haase H, Golenhofen N, Grabrucker AM, Weth A, Baumgartner W. N-cadherin-mediated cell adhesion is regulated by extracellular Zn2+. Metallomics 2015; 7:355-62. [DOI: 10.1039/c4mt00300d] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Free extracellular zinc binds to N-cadherin and can modulate cellular adhesion in the nervous system at picomolar zinc concentrations.
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Affiliation(s)
- E. Heiliger
- Department of Cellular Neurobionics
- RWTH-Aachen University
- 52074 Aachen, Germany
| | - A. Osmanagic
- Department of Cellular Neurobionics
- RWTH-Aachen University
- 52074 Aachen, Germany
| | - H. Haase
- Institute of Immunology
- RWTH-Aachen University
- 52074 Aachen, Germany
- Department of Food Chemistry and Toxicology
- Berlin Institute of Technology
| | - N. Golenhofen
- Institute of Anatomy and Cell Biology
- Ulm University
- Ulm, Germany
| | - A. M. Grabrucker
- Institute of Anatomy and Cell Biology
- Ulm University
- Ulm, Germany
- WG Molecular Analysis of Synaptopathies
- Neurology Dept
| | - A. Weth
- Institute of Biomedical Mechatronics
- Johannes Kepler University of Linz
- Linz, Austria
| | - W. Baumgartner
- Department of Cellular Neurobionics
- RWTH-Aachen University
- 52074 Aachen, Germany
- Institute of Biomedical Mechatronics
- Johannes Kepler University of Linz
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47
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Kloubert V, Rink L. Zinc as a micronutrient and its preventive role of oxidative damage in cells. Food Funct 2015; 6:3195-204. [DOI: 10.1039/c5fo00630a] [Citation(s) in RCA: 89] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Zinc deficiency leads to increased ROS production, thereby causing lipid peroxidation. Subsequently, signallingviathe NF-κB pathway is increased, resulting in the expression of pro-inflammatory cytokines which in turn cause chronic inflammatory diseases.
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Affiliation(s)
- Veronika Kloubert
- Institute of Immunology
- Medical Faculty
- RWTH Aachen University
- 52074 Aachen
- Germany
| | - Lothar Rink
- Institute of Immunology
- Medical Faculty
- RWTH Aachen University
- 52074 Aachen
- Germany
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Schubert C, Guttek K, Grüngreiff K, Thielitz A, Bühling F, Reinhold A, Brocke S, Reinhold D. Oral zinc aspartate treats experimental autoimmune encephalomyelitis. Biometals 2014; 27:1249-62. [DOI: 10.1007/s10534-014-9786-8] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2014] [Accepted: 08/13/2014] [Indexed: 01/17/2023]
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