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Zuo X, Ding X, Zhang Y, Kang YJ. Reversal of atherosclerosis by restoration of vascular copper homeostasis. Exp Biol Med (Maywood) 2024; 249:10185. [PMID: 38978540 PMCID: PMC11228934 DOI: 10.3389/ebm.2024.10185] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2024] [Accepted: 06/04/2024] [Indexed: 07/10/2024] Open
Abstract
Atherosclerosis has traditionally been considered as a disorder characterized by the accumulation of cholesterol and thrombotic materials within the arterial wall. However, it is now understood to be a complex inflammatory disease involving multiple factors. Central to the pathogenesis of atherosclerosis are the interactions among monocytes, macrophages, and neutrophils, which play pivotal roles in the initiation, progression, and destabilization of atherosclerotic lesions. Recent advances in our understanding of atherosclerosis pathogenesis, coupled with results obtained from experimental interventions, lead us to propose the hypothesis that atherosclerosis may be reversible. This paper outlines the evolution of this hypothesis and presents corroborating evidence that supports the potential for atherosclerosis regression through the restoration of vascular copper homeostasis. We posit that these insights may pave the way for innovative therapeutic approaches aimed at the reversal of atherosclerosis.
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Affiliation(s)
- Xiao Zuo
- Tasly Stem Cell Biology Laboratory, Tasly Biopharmaceutical Co., Tianjin, China
| | - Xueqin Ding
- Regenerative Medicine Research Center, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Yaya Zhang
- Tasly Stem Cell Biology Laboratory, Tasly Biopharmaceutical Co., Tianjin, China
| | - Y James Kang
- Tasly Stem Cell Biology Laboratory, Tasly Biopharmaceutical Co., Tianjin, China
- Regenerative Medicine Research Center, West China Hospital, Sichuan University, Chengdu, Sichuan, China
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2
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Helman SL, Zhou J, Fuqua BK, Lu Y, Collins JF, Chen H, Vulpe CD, Anderson GJ, Frazer DM. The biology of mammalian multi-copper ferroxidases. Biometals 2023; 36:263-281. [PMID: 35167013 PMCID: PMC9376197 DOI: 10.1007/s10534-022-00370-z] [Citation(s) in RCA: 15] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2021] [Accepted: 02/04/2022] [Indexed: 12/24/2022]
Abstract
The mammalian multicopper ferroxidases (MCFs) ceruloplasmin (CP), hephaestin (HEPH) and zyklopen (ZP) comprise a family of conserved enzymes that are essential for body iron homeostasis. Each of these enzymes contains six biosynthetically incorporated copper atoms which act as intermediate electron acceptors, and the oxidation of iron is associated with the four electron reduction of dioxygen to generate two water molecules. CP occurs in both a secreted and GPI-linked (membrane-bound) form, while HEPH and ZP each contain a single C-terminal transmembrane domain. These enzymes function to ensure the efficient oxidation of iron so that it can be effectively released from tissues via the iron export protein ferroportin and subsequently bound to the iron carrier protein transferrin in the blood. CP is particularly important in facilitating iron release from the liver and central nervous system, HEPH is the major MCF in the small intestine and is critical for dietary iron absorption, and ZP is important for normal hair development. CP and HEPH (and possibly ZP) function in multiple tissues. These proteins also play other (non-iron-related) physiological roles, but many of these are ill-defined. In addition to disrupting iron homeostasis, MCF dysfunction perturbs neurological and immune function, alters cancer susceptibility, and causes hair loss, but, despite their importance, how MCFs co-ordinately maintain body iron homeostasis and perform other functions remains incompletely understood.
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Affiliation(s)
- Sheridan L Helman
- Molecular Nutrition Laboratory, QIMR Berghofer Medical Research Institute, Brisbane, Australia
| | - Jie Zhou
- Department of Physiological Sciences, University of Florida, Gainsville, FL, USA
| | - Brie K Fuqua
- David Geffen School of Medicine at UCLA, Los Angeles, CA, USA
| | - Yan Lu
- Iron Metabolism Laboratory, QIMR Berghofer Medical Research Institute, 300 Herston Road, Brisbane, QLD, 4006, Australia
- Mucosal Immunology Group, QIMR Berghofer Medical Research Institute, Brisbane, Australia
| | - James F Collins
- Food Science and Human Nutrition Department, University of Florida, Gainsville, FL, USA
| | - Huijun Chen
- Jiangsu Key Laboratory of Molecular Medicine, Medical School of Nanjing University, Nanjing, China
| | - Christopher D Vulpe
- Department of Physiological Sciences, University of Florida, Gainsville, FL, USA
| | - Gregory J Anderson
- Iron Metabolism Laboratory, QIMR Berghofer Medical Research Institute, 300 Herston Road, Brisbane, QLD, 4006, Australia.
- School of Chemistry and Molecular Bioscience, University of Queensland, Brisbane, Australia.
| | - David M Frazer
- Molecular Nutrition Laboratory, QIMR Berghofer Medical Research Institute, Brisbane, Australia
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3
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Apoceruloplasmin: Abundance, Detection, Formation, and Metabolism. Biomedicines 2021; 9:biomedicines9030233. [PMID: 33669134 PMCID: PMC7996503 DOI: 10.3390/biomedicines9030233] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2020] [Revised: 02/20/2021] [Accepted: 02/22/2021] [Indexed: 12/13/2022] Open
Abstract
Ceruloplasmin, the main copper-binding protein in blood and some other fluids, is well known for its copper-dependent enzymatic functions and as a source of copper for cells. What is generally unknown or ignored is that, at least in the case of blood plasma and serum, about half of ceruloplasmin is in the apo (copper-free) form. This has led to some misconceptions about the amounts and variations of other copper-binding proteins and so-called “free copper” in the blood that might be indicators of disease states. What is known about the levels, sources, and metabolism of apo versus holo ceruloplasmin and the problems associated with measurements of the two forms is reviewed here.
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Khalil RH, Al-Humadi N. Types of acute phase reactants and their importance in vaccination. Biomed Rep 2020; 12:143-152. [PMID: 32190302 PMCID: PMC7054702 DOI: 10.3892/br.2020.1276] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2019] [Accepted: 11/25/2019] [Indexed: 02/06/2023] Open
Abstract
Vaccines are considered to be one of the most cost-effective life-saving interventions in human history. The body's inflammatory response to vaccines has both desired effects (immune response), undesired effects [(acute phase reactions (APRs)] and trade-offs. Trade-offs are more potent immune responses which may be potentially difficult to separate from potent acute phase reactions. Thus, studying acute phase proteins (APPs) during vaccination may aid our understanding of APRs and homeostatic changes which can result from inflammatory responses. Depending on the severity of the response in humans, these reactions can be classified as major, moderate or minor. In this review, types of APPs and their importance in vaccination will be discussed.
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Affiliation(s)
- Rafaat H Khalil
- Department of Biology, College of Science and Technology, Florida Agricultural and Mechanical University, Tallahassee, FL 32307, USA
| | - Nabil Al-Humadi
- Office of Vaccines, Food and Drug Administration, Center for Biologics Evaluation and Research, Silver Spring, MD 20993, USA
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5
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Looking for a partner: ceruloplasmin in protein-protein interactions. Biometals 2019; 32:195-210. [PMID: 30895493 DOI: 10.1007/s10534-019-00189-1] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2018] [Accepted: 03/18/2019] [Indexed: 10/27/2022]
Abstract
Ceruloplasmin (CP) is a mammalian blood plasma ferroxidase. More than 95% of the copper found in plasma is carried by this protein, which is a member of the multicopper oxidase family. Proteins from this group are able to oxidize substrates through the transfer of four electrons to oxygen. The essential role of CP in iron metabolism in humans is particularly evident in the case of loss-of-function mutations in the CP gene resulting in a neurodegenerative syndrome known as aceruloplasminaemia. However, the functions of CP are not limited to the oxidation of ferrous iron to ferric iron, which allows loading of the ferric iron into transferrin and prevents the deleterious reactions of Fenton chemistry. In recent years, a number of novel CP functions have been reported, and many of these functions depend on the ability of CP to form stable complexes with a number of proteins.
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Ibragimova MI, Chushnikov AY, Cherepnev GV, Yu Petukhov V. Comparison of EPR Fe3+-Transferrin Versus Approved Clinical Chemistry Test for Serum Iron Measurements in Professional Ice Hockey Players and Nonathletic Controls. BIONANOSCIENCE 2019. [DOI: 10.1007/s12668-018-0587-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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7
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Das S, Sahoo PK. Ceruloplasmin, a moonlighting protein in fish. FISH & SHELLFISH IMMUNOLOGY 2018; 82:460-468. [PMID: 30144565 DOI: 10.1016/j.fsi.2018.08.043] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/19/2018] [Revised: 08/15/2018] [Accepted: 08/21/2018] [Indexed: 06/08/2023]
Abstract
Ceruloplasmin is an ancient multicopper oxidase evolved to insure a safe handling of oxygen in some metabolic pathways of vertebrates. The current knowledge of its structure provides a glimpse of its plasticity, revealing a multitude of binding sites that point to an elaborate mechanism of multifunctional activity. Ceruloplasmin is highly conserved throughout the vertebrate evolution. Cupredoxin, a multi-cupper blue protein is believed to be the evolutionary precursor of ceruloplasmin with three trinuclear and three mononuclear copper binding sites. There are 20 copper-binding residues in ceruloplasmin gene out of which 16 residues are conserved in fish. This ceruloplasmin gene is being characterized in zebrafish (Danio rerio), rohu (Labeo rohita), Indian medaka (Oryzias melastigama), catfish (Ictalurus punctatus), icefish (Chionodraco rastrospinosus), goldfish (Carassius auratus) and yellow perch (Perca flaviscens). The complete coding sequence of fish ceruloplasmin gene is around 3.2 kb which codes for 1000 to 1100 amino acid residues. The size of ceruloplasmin gene sequence in fish ranges around 13 kb containing 20 exons and 19 introns. Liver is the major site of synthesis in fish. Increased expression of this gene during bacterial infection in channel catfish and rohu suggested its potential involvement in bacterial disease response in fish. It has been found to serve as an indirect marker for selection against Aeromonas hydrophila resistance in rohu carp. Ceruloplasmin expression is also evident during parasitic infection in few fish species. The role of this gene is well studied during inflammatory response to hormonal, drug and heavy metal mediated toxicity in fish. Overall, ceruloplasmin represents an example of a 'moonlighting' protein that overcomes the one gene-one structure-one function concept to follow the changes of the organism in its physiological and pathological conditions.
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Affiliation(s)
- Sweta Das
- Peninsular and Marine Fish Genetic Resources Centre, ICAR-National Bureau of Fish Genetic Resources, CMFRI Campus, Kochi 682 018, India
| | - Pramoda Kumar Sahoo
- ICAR-Central Institute of Freshwater Aquaculture, Kausalyaganga, Bhubaneswar 751 002, India.
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8
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Ilyechova EY, Miliukhina IV, Orlov IA, Muruzheva ZM, Puchkova LV, Karpenko MN. A low blood copper concentration is a co-morbidity burden factor in Parkinson’s disease development. Neurosci Res 2018; 135:54-62. [DOI: 10.1016/j.neures.2017.11.011] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2017] [Revised: 11/15/2017] [Accepted: 11/30/2017] [Indexed: 01/21/2023]
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9
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Oxidation of cysteine by ceruloplasmin leads to formation of hydrogen peroxide, which can be utilized by myeloperoxidase. Biochem Biophys Res Commun 2018; 503:2146-2151. [DOI: 10.1016/j.bbrc.2018.08.003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2018] [Accepted: 08/01/2018] [Indexed: 01/08/2023]
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10
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Zinc, Copper, and Iron in Oral Submucous Fibrosis: A Meta-Analysis. Int J Dent 2018; 2018:3472087. [PMID: 30046309 PMCID: PMC6038491 DOI: 10.1155/2018/3472087] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2017] [Revised: 04/22/2018] [Accepted: 05/06/2018] [Indexed: 01/02/2023] Open
Abstract
Oral submucous fibrosis (OSF) is a potentially malignant disorder which causes fibrosis and inflammation of the oral mucosa. Studies have reported altered levels of trace elements in oral submucous fibrosis subjects, but findings have been inconsistent. The objective of this research is to perform a meta-analysis to summarize studies that report zinc (Zn), copper (Cu), and iron (Fe) in patients, with and without OSF. A literature search of Embase, PubMed, Cochrane Library, and Web of Science electronic databases was conducted for studies up to January 2017. A total of 34 reports met the inclusion criteria. The standardized mean difference was utilized as the effect size. The robust variance estimation method was chosen to handle dependency of multiple related outcomes in meta-analysis. There was a significant increase in the levels of Cu (effect size = 1.17, p value < 0.05, 95% confidence interval (CI): 0.164–2.171) and a significant decrease in levels of Zn (effect size = −1.95, p value < 0.05, 95% CI: −3.524 to −0.367) and Fe (effect size = −2.77, p value < 0.01, 95% CI: −4.126 to −1.406) in OSF patients. The estimation of Zn, Cu, and Fe levels may serve as additional biomarkers in the diagnosis and prognosis of OSF along with the clinical features.
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11
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Karpenko MN, Ilyicheva EY, Muruzheva ZM, Milyukhina IV, Orlov YA, Puchkova LV. Role of Copper Dyshomeostasis in the Pathogenesis of Parkinson's Disease. Bull Exp Biol Med 2018; 164:596-600. [PMID: 29577200 DOI: 10.1007/s10517-018-4039-4] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2017] [Indexed: 12/21/2022]
Abstract
Serum concentration of copper, immunoreactive polypeptides of ceruloplasmin and its oxidase activity, and the number of copper atoms per ceruloplasmin molecule were decreased in patients with Parkinson's disease in comparison with the corresponding parameters in age-matched healthy individuals, but the ratio of apoceruloplasmin to holoceruloplasmin in patients with Parkinson's disease was similar in both groups. Treatment of blood serum with Helex 100, a high-affinity copper chelator, revealed reduced content of labile copper atoms per ceruloplasmin molecule in patients with Parkinson's disease in comparison with that in healthy controls. The mechanism underlying impaired metabolic incorporation of labile copper atoms into CP molecule is discussed as a possible cause of copper dyshomeostasis associated with Parkinson's disease.
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Affiliation(s)
- M N Karpenko
- Institute of Experimental Medicine, St. Petersburg, Russia.,St. Petersburg National Research University of Information Technologies, Mechanics, and Optics (ITMO University), St. Petersburg, Russia.,Peter the Great St. Petersburg Polytechnic University, St. Petersburg, Russia
| | - E Yu Ilyicheva
- Institute of Experimental Medicine, St. Petersburg, Russia. .,St. Petersburg National Research University of Information Technologies, Mechanics, and Optics (ITMO University), St. Petersburg, Russia.
| | - Z M Muruzheva
- Institute of Experimental Medicine, St. Petersburg, Russia
| | - I V Milyukhina
- Institute of Experimental Medicine, St. Petersburg, Russia
| | - Yu A Orlov
- St. Petersburg National Research University of Information Technologies, Mechanics, and Optics (ITMO University), St. Petersburg, Russia
| | - L V Puchkova
- Institute of Experimental Medicine, St. Petersburg, Russia.,St. Petersburg National Research University of Information Technologies, Mechanics, and Optics (ITMO University), St. Petersburg, Russia.,Peter the Great St. Petersburg Polytechnic University, St. Petersburg, Russia
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12
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Samygina VR, Sokolov AV, Bourenkov G, Schneider TR, Anashkin VA, Kozlov SO, Kolmakov NN, Vasilyev VB. Rat ceruloplasmin: a new labile copper binding site and zinc/copper mosaic. Metallomics 2017; 9:1828-1838. [PMID: 29177316 DOI: 10.1039/c7mt00157f] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Ceruloplasmin (Cp) is a copper-containing multifunctional oxidase of plasma, an antioxidant, an acute-phase protein and a free radical scavenger. The structural organization of Cp causes its sensitivity to proteolysis and ROS (reactive oxygen species), which can alter some of the important Cp functions. Elucidation of the orthorhombic crystal structure of rat Cp at 2.3 Å resolution revealed the basis for stronger resistance of rat Cp to proteolysis and a new labile copper binding site. The presence of this site appears as a very rare and distinctive feature of rat Cp as was shown by sequence alignment of ceruloplasmin, hephaestin and zyklopen in the Deuterostomia taxonomic group. The trigonal crystal form of rat Cp at 3.2 Å demonstrates unexpected partial substitution of copper by zinc.
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Affiliation(s)
- V R Samygina
- Shubnikov Institute of Crystallography of FSRC "Crystallography and Photonics" RAS, Leninsky pr.59, Moscow 117333, Russia. and NRC Kurchatov Institute, Kurchatov pl. 1, Moscow 123098, Russia
| | - A V Sokolov
- Institute of Experimental Medicine, ul. Academica Pavlova, 12, Saint-Petersburg 197376, Russia and Saint-Petersburg State Universisty, Universitetskaya nab. 7-9, Saint-Petersburg 199034, Russia and Centre of Preclinical Translational Research, Almazov National Medical Research Centre, ul. Dolgoozernaya, 43, Saint-Petersburg 197371, Russia
| | - G Bourenkov
- EMBL, Notkestrasse 85, 22607 Hamburg, Germany
| | | | - V A Anashkin
- Shubnikov Institute of Crystallography of FSRC "Crystallography and Photonics" RAS, Leninsky pr.59, Moscow 117333, Russia. and Belozersky Institute of Physico-Chemical Biology and Department of Chemistry, Lomonosov Moscow State University, Moscow 119899, Russia
| | - S O Kozlov
- Institute of Experimental Medicine, ul. Academica Pavlova, 12, Saint-Petersburg 197376, Russia
| | - N N Kolmakov
- Institute of Experimental Medicine, ul. Academica Pavlova, 12, Saint-Petersburg 197376, Russia
| | - V B Vasilyev
- Institute of Experimental Medicine, ul. Academica Pavlova, 12, Saint-Petersburg 197376, Russia and Saint-Petersburg State Universisty, Universitetskaya nab. 7-9, Saint-Petersburg 199034, Russia
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13
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Kostevich VA, Sokolov AV, Grudinina NA, Zakharova ET, Samygina VR, Vasilyev VB. Interaction of macrophage migration inhibitory factor with ceruloplasmin: role of labile copper ions. Biometals 2015; 28:817-26. [DOI: 10.1007/s10534-015-9868-2] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2015] [Accepted: 06/11/2015] [Indexed: 02/06/2023]
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14
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Shanthaveeranna GK, Thykadavil VG, D'souza GA. Use of pleural fluid ceruloplasmin in the differentiation of exudative and transudative pleural effusion. Lung India 2015; 32:11-5. [PMID: 25624589 PMCID: PMC4298910 DOI: 10.4103/0970-2113.148419] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Background: Differentiating into transudate or exudate is the first step in the evaluation of effusions. Light's criteria is the standard but a significant number of transudates may not be differentiated based on these criteria. Acute phase proteins (APP) are present in plasma, which increase or decrease by about 25% during an acute inflammatory response. Ceruloplasmin (CP) is a positive APP. Hence, this study was done to know the diagnostic value of pleural fluid (pf) CP and pf to serum ceruloplasmin ratio (CPr) to differentiate the pleural effusion (PE) into exudate and transudate as compared to Light's criteria. Materials and Methods: Setting: Medical wards of St John's Medical College Hospital, Bangalore. Design: Cross-sectional descriptive study. Patients with PE were divided into exudate and transudate by definitive diagnosis. pfCP, CPr and Light's criteria were compared with definitive diagnosis for the differentiation of pf into exudate and transudate. Results: The mean value of the pfCP and CPr was found to be significantly different between exudates and transudates. Sensitivity and specificity of pfCP at ≥ 13.34 mg/dl is 89.7% and 83.3%, CPr at ≥ 0.37 is 91.4% and 83.3%, Light's criteria 94.82% and 83.3%, respectively. Light's criteria, pfCP and CPr have similar PPV (98%) with Light's criteria having higher NPV (62.5%) than pfCP (45%) and CPr (50%), respectively. CPr has higher NPV than pfCP. Conclusions: pfCP and CPr can differentiate pf into exudate and transudate with comparable PPV to Light's criteria.
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Affiliation(s)
| | - Vinod G Thykadavil
- Department of Biochemistry, St. John's Medical College, Bangalore, Karnataka, India
| | - George A D'souza
- Department of Pulmonary Medicine, St. John's Medical College, Bangalore, Karnataka, India
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Gresle MM, Schulz K, Jonas A, Perreau VM, Cipriani T, Baxter AG, Miranda-Hernandez S, Field J, Jokubaitis VG, Cherny R, Volitakis I, David S, Kilpatrick TJ, Butzkueven H. Ceruloplasmin gene-deficient mice with experimental autoimmune encephalomyelitis show attenuated early disease evolution. J Neurosci Res 2014; 92:732-42. [DOI: 10.1002/jnr.23349] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2013] [Revised: 09/05/2013] [Accepted: 11/20/2013] [Indexed: 11/11/2022]
Affiliation(s)
- Melissa M. Gresle
- Department of Medicine; University of Melbourne, Royal Melbourne Hospital; Parkville Australia
- Melbourne Brain Center at the Royal Melbourne Hospital, University of Melbourne; Parkville Australia
| | - Katrin Schulz
- Center for Research in Neuroscience; The Research Institute of the McGill University Health Center; Montreal Quebec Canada
| | - Anna Jonas
- Florey Neuroscience Institute of Neuroscience and Mental Health, University of Melbourne; Parkville Australia
| | - Victoria M. Perreau
- Florey Neuroscience Institute of Neuroscience and Mental Health, University of Melbourne; Parkville Australia
- Department of Anatomy and Neuroscience; University of Melbourne; Parkville Australia
| | - Tania Cipriani
- Florey Neuroscience Institute of Neuroscience and Mental Health, University of Melbourne; Parkville Australia
| | - Alan G. Baxter
- Comparative Genomics Centre; James Cook University; Townsville Australia
| | | | - Judith Field
- Florey Neuroscience Institute of Neuroscience and Mental Health, University of Melbourne; Parkville Australia
- Department of Anatomy and Neuroscience; University of Melbourne; Parkville Australia
| | - Vilija G. Jokubaitis
- Melbourne Brain Center at the Royal Melbourne Hospital, University of Melbourne; Parkville Australia
- Florey Neuroscience Institute of Neuroscience and Mental Health, University of Melbourne; Parkville Australia
| | - Robert Cherny
- Department of Pathology; University of Melbourne; Parkville Australia
- The Mental Health Research Institute; Parkville Australia
| | - Irene Volitakis
- Department of Pathology; University of Melbourne; Parkville Australia
- The Mental Health Research Institute; Parkville Australia
| | - Samuel David
- Center for Research in Neuroscience; The Research Institute of the McGill University Health Center; Montreal Quebec Canada
| | - Trevor J. Kilpatrick
- Florey Neuroscience Institute of Neuroscience and Mental Health, University of Melbourne; Parkville Australia
- Department of Anatomy and Neuroscience; University of Melbourne; Parkville Australia
- Melbourne Brain Center at the Royal Melbourne Hospital, University of Melbourne; Parkville Australia
| | - Helmut Butzkueven
- Department of Medicine; University of Melbourne, Royal Melbourne Hospital; Parkville Australia
- Melbourne Brain Center at the Royal Melbourne Hospital, University of Melbourne; Parkville Australia
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Mocchegiani E, Costarelli L, Giacconi R, Malavolta M, Basso A, Piacenza F, Ostan R, Cevenini E, Gonos ES, Monti D. Micronutrient-gene interactions related to inflammatory/immune response and antioxidant activity in ageing and inflammation. A systematic review. Mech Ageing Dev 2014; 136-137:29-49. [PMID: 24388876 DOI: 10.1016/j.mad.2013.12.007] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2013] [Revised: 12/06/2013] [Accepted: 12/20/2013] [Indexed: 02/07/2023]
Abstract
Recent longitudinal studies in dietary daily intake in human centenarians have shown that a satisfactory content of some micronutrients within the cells maintain several immune functions, a low grade of inflammation and preserve antioxidant activity. Micronutrients (zinc, copper, selenium) play a pivotal role in maintaining and reinforcing the performances of the immune and antioxidant systems as well as in affecting the complex network of the genes (nutrigenomic) with anti- and pro-inflammatory tasks. Genes of pro- and anti-inflammatory cytokines and some key regulators of trace elements homeostasis, such as Metallothioneins (MT), are involved in the susceptibility to major geriatric disease/disorders. Moreover, the genetic inter-individual variability may affect the nutrients' absorption (nutrigenetic) with altered effects on inflammatory/immune response and antioxidant activity. The interaction between genetic factors and micronutrients (nutrigenomic and nutrigenetic approaches) may influence ageing and longevity because the micronutrients may become also toxic. This review reports the micronutrient-gene interactions in ageing and their impact on the healthy state with a focus on the method of protein-metal speciation analysis. The association between micronutrient-gene interactions and the protein-metal speciation analysis can give a complete picture for a personalized nutrient supplementation or chelation in order to reach healthy ageing and longevity.
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Affiliation(s)
- Eugenio Mocchegiani
- Translation Center of Research in Nutrition and Ageing, Scientific and Technological Pole, Italian National Research Centres on Ageing (INRCA), Via Birarelli 8, 60121 Ancona, Italy.
| | - Laura Costarelli
- Translation Center of Research in Nutrition and Ageing, Scientific and Technological Pole, Italian National Research Centres on Ageing (INRCA), Via Birarelli 8, 60121 Ancona, Italy
| | - Robertina Giacconi
- Translation Center of Research in Nutrition and Ageing, Scientific and Technological Pole, Italian National Research Centres on Ageing (INRCA), Via Birarelli 8, 60121 Ancona, Italy
| | - Marco Malavolta
- Translation Center of Research in Nutrition and Ageing, Scientific and Technological Pole, Italian National Research Centres on Ageing (INRCA), Via Birarelli 8, 60121 Ancona, Italy
| | - Andrea Basso
- Translation Center of Research in Nutrition and Ageing, Scientific and Technological Pole, Italian National Research Centres on Ageing (INRCA), Via Birarelli 8, 60121 Ancona, Italy
| | - Francesco Piacenza
- Translation Center of Research in Nutrition and Ageing, Scientific and Technological Pole, Italian National Research Centres on Ageing (INRCA), Via Birarelli 8, 60121 Ancona, Italy
| | - Rita Ostan
- Department of Experimental Diagnostic and Specialty Medicine (DIMES) and Interdepartmental Centre "L. Galvani" (CIG), University of Bologna, Via San Giacomo, 12, 40126 Bologna, Italy
| | - Elisa Cevenini
- Department of Experimental Diagnostic and Specialty Medicine (DIMES) and Interdepartmental Centre "L. Galvani" (CIG), University of Bologna, Via San Giacomo, 12, 40126 Bologna, Italy
| | - Efstathios S Gonos
- National Hellenic Research Foundation, Institute of Biology, Medicinal Chemistry and Biotechnology, 48 Vas. Constantinou Ave., Athens 11635, Greece
| | - Daniela Monti
- Department of Clinical and Experimental Biomedical Sciences, University of Florence, Viale Morgagni, 50, 50134 Florence, Italy
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Multi-copper oxidases and human iron metabolism. Nutrients 2013; 5:2289-313. [PMID: 23807651 PMCID: PMC3738974 DOI: 10.3390/nu5072289] [Citation(s) in RCA: 132] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2013] [Revised: 05/29/2013] [Accepted: 06/06/2013] [Indexed: 01/13/2023] Open
Abstract
Multi-copper oxidases (MCOs) are a small group of enzymes that oxidize their substrate with the concomitant reduction of dioxygen to two water molecules. Generally, multi-copper oxidases are promiscuous with regards to their reducing substrates and are capable of performing various functions in different species. To date, three multi-copper oxidases have been detected in humans—ceruloplasmin, hephaestin and zyklopen. Each of these enzymes has a high specificity towards iron with the resulting ferroxidase activity being associated with ferroportin, the only known iron exporter protein in humans. Ferroportin exports iron as Fe2+, but transferrin, the major iron transporter protein of blood, can bind only Fe3+ effectively. Iron oxidation in enterocytes is mediated mainly by hephaestin thus allowing dietary iron to enter the bloodstream. Zyklopen is involved in iron efflux from placental trophoblasts during iron transfer from mother to fetus. Release of iron from the liver relies on ferroportin and the ferroxidase activity of ceruloplasmin which is found in blood in a soluble form. Ceruloplasmin, hephaestin and zyklopen show distinctive expression patterns and have unique mechanisms for regulating their expression. These features of human multi-copper ferroxidases can serve as a basis for the precise control of iron efflux in different tissues. In this manuscript, we review the biochemical and biological properties of the three human MCOs and discuss their potential roles in human iron homeostasis.
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Orlova NA, Kovnir SV, Vorobiev II, Gabibov AG, Vorobiev AI. Blood Clotting Factor VIII: From Evolution to Therapy. Acta Naturae 2013; 5:19-39. [PMID: 23819034 PMCID: PMC3695351] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
Recombinant blood clotting factor VIII is one of the most complex proteins for industrial manufacturing due to the low efficiency of its gene transcription, massive intracellular loss of its proprotein during post-translational processing, and the instability of the secreted protein. Improvement in hemophilia A therapy requires a steady increase in the production of factor VIII drugs despite tightening standards of product quality and viral safety. More efficient systems for heterologous expression of factor VIII can be created on the basis of the discovered properties of its gene transcription, post-translational processing, and behavior in the bloodstream. The present review describes the deletion variants of factor VIII protein with increased secretion efficiency and the prospects for the pharmaceutical development of longer acting variants and derivatives of factor VIII.
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Affiliation(s)
- N. A. Orlova
- 1Center “Bioengineering”, Russian Academy of Sciences, 60-letija Oktyabrja av., 7/1, Moscow, Russia, 117312
- 2Shemyakin and Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Miklukho-Maklaya Str., 16/10, Moscow, Russia, 117997
| | - S. V. Kovnir
- 1Center “Bioengineering”, Russian Academy of Sciences, 60-letija Oktyabrja av., 7/1, Moscow, Russia, 117312
- 2Shemyakin and Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Miklukho-Maklaya Str., 16/10, Moscow, Russia, 117997
| | - I. I. Vorobiev
- 1Center “Bioengineering”, Russian Academy of Sciences, 60-letija Oktyabrja av., 7/1, Moscow, Russia, 117312
- 2Shemyakin and Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Miklukho-Maklaya Str., 16/10, Moscow, Russia, 117997
| | - A. G. Gabibov
- 1Center “Bioengineering”, Russian Academy of Sciences, 60-letija Oktyabrja av., 7/1, Moscow, Russia, 117312
- 2Shemyakin and Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Miklukho-Maklaya Str., 16/10, Moscow, Russia, 117997
| | - A. I. Vorobiev
- 3Research Center for Hematology, Ministry of Health and Social Development of the Russian Federation, Novij Zykovsky proezd, 4, Moscow, Russia, 125167
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Smirnova EV, Lakunina VA, Tarassov I, Krasheninnikov IA, Kamenski PA. Noncanonical functions of aminoacyl-tRNA synthetases. BIOCHEMISTRY (MOSCOW) 2012; 77:15-25. [PMID: 22339629 DOI: 10.1134/s0006297912010026] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Aminoacyl-tRNA synthetases, together with their main function of covalent binding of an amino acid to a corresponding tRNA, also perform many other functions. They take part in regulation of gene transcription, apoptosis, translation, and RNA splicing. Some of them function as cytokines or catalyze different reactions in living cells. Noncanonical functions can be mediated by additional domains of these proteins. On the other hand, some of the noncanonical functions are directly associated with the active center of the aminoacylation reaction. In this review we summarize recent data on the noncanonical functions of aminoacyl-tRNA synthetases and on the mechanisms of their action.
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Affiliation(s)
- E V Smirnova
- Department of Molecular Biology, Lomonosov Moscow State University, Moscow, Russia
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Sokolov AV, Solovyov KV, Kostevich VA, Chekanov AV, Pulina MO, Zakharova ET, Shavlovski MM, Panasenko OM, Vasilyev VB. Protection of ceruloplasmin by lactoferrin against hydroxyl radicals is pH dependent1This article is part of a Special Issue entitled Lactoferrin and has undergone the Journal’s usual peer review process. Biochem Cell Biol 2012; 90:397-404. [DOI: 10.1139/o2012-004] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Destruction of ceruloplasmin (Cp) in the presence of hydrogen peroxide is accompanied by the release of the protein’s copper ions that provoke formation of hydroxyl radicals (OH˙) and, consequently, further degradation of the protein. Under such conditions, degradation of Cp is hampered by a number of substances able to bind copper ions. Lactoferrin (Lf) is the most active protector of Cp, its protective effect depending on the pH of the medium. The best protection of Cp by Lf was detected at pH 7.4. In an acidic buffer (pH 5.5), Lf did not affect the destruction of Cp. The pH-dependent efficiency of copper binding by Lf is in good agreement with its capacity to protect Cp against degradation provoked by hydrogen peroxide. It seems likely that peroxide-dependent degradation of Cp stimulated by its own copper ions is a part of neutrophil-induced antimicrobial reactions and may take place properly at the foci of inflammation. Interaction of Lf with Cp may regulate the generation of OH˙ from hydrogen peroxide in the foci of inflammation and protect the adjacent tissues.
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Affiliation(s)
- Alexey V. Sokolov
- Institute for Experimental Medicine, N-W Branch of the Russian Academy of Medical Sciences, 197376 Saint-Petersburg, Acad. Pavlov street 12, Russia
- Research Institute of Physico-Chemical Medicine, Malaya Pirogovskaya str, 1a, Moscow 119992, Russia
| | - Kirill V. Solovyov
- Institute for Experimental Medicine, N-W Branch of the Russian Academy of Medical Sciences, 197376 Saint-Petersburg, Acad. Pavlov street 12, Russia
| | - Valeria A. Kostevich
- Institute for Experimental Medicine, N-W Branch of the Russian Academy of Medical Sciences, 197376 Saint-Petersburg, Acad. Pavlov street 12, Russia
- Research Institute of Physico-Chemical Medicine, Malaya Pirogovskaya str, 1a, Moscow 119992, Russia
| | - Andrey V. Chekanov
- Research Institute of Physico-Chemical Medicine, Malaya Pirogovskaya str, 1a, Moscow 119992, Russia
| | - Maria O. Pulina
- Institute for Experimental Medicine, N-W Branch of the Russian Academy of Medical Sciences, 197376 Saint-Petersburg, Acad. Pavlov street 12, Russia
| | - Elena T. Zakharova
- Institute for Experimental Medicine, N-W Branch of the Russian Academy of Medical Sciences, 197376 Saint-Petersburg, Acad. Pavlov street 12, Russia
| | - Mikhail M. Shavlovski
- Institute for Experimental Medicine, N-W Branch of the Russian Academy of Medical Sciences, 197376 Saint-Petersburg, Acad. Pavlov street 12, Russia
| | - Oleg M. Panasenko
- Research Institute of Physico-Chemical Medicine, Malaya Pirogovskaya str, 1a, Moscow 119992, Russia
| | - Vadim B. Vasilyev
- Institute for Experimental Medicine, N-W Branch of the Russian Academy of Medical Sciences, 197376 Saint-Petersburg, Acad. Pavlov street 12, Russia
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Micronutrient (Zn, Cu, Fe)-gene interactions in ageing and inflammatory age-related diseases: implications for treatments. Ageing Res Rev 2012; 11:297-319. [PMID: 22322094 DOI: 10.1016/j.arr.2012.01.004] [Citation(s) in RCA: 59] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2011] [Revised: 01/20/2012] [Accepted: 01/23/2012] [Indexed: 02/07/2023]
Abstract
In ageing, alterations in inflammatory/immune response and antioxidant capacity lead to increased susceptibility to diseases and loss of mobility and agility. Various essential micronutrients in the diet are involved in age-altered biological functions. Micronutrients (zinc, copper, iron) play a pivotal role either in maintaining and reinforcing the immune and antioxidant performances or in affecting the complex network of genes (nutrigenomic approach) involved in encoding proteins for a correct inflammatory/immune response. By the other side, the genetic inter-individual variability may affect the absorption and uptake of the micronutrients (nutrigenetic approach) with subsequent altered effects on inflammatory/immune response and antioxidant activity. Therefore, the individual micronutrient-gene interactions are fundamental to achieve healthy ageing. In this review, we report and discuss the role of micronutrients (Zn, Cu, Fe)-gene interactions in relation to the inflammatory status and the possibility of a supplement in the event of a micronutrient deficiency or chelation in presence of micronutrient overload in relation to specific polymorphisms of inflammatory proteins or proteins related of the delivery of the micronutriemts to various organs and tissues. In this last context, we report the protein-metal speciation analysis in order to have, coupled with micronutrient-gene interactions, a more complete picture of the individual need in micronutrient supplementation or chelation to achieve healthy ageing and longevity.
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Persichini T, De Francesco G, Capone C, Cutone A, Bonaccorsi di Patti MC, Colasanti M, Musci G. Reactive oxygen species are involved in ferroportin degradation induced by ceruloplasmin mutant Arg701Trp. Neurochem Int 2012; 60:360-4. [PMID: 22281056 PMCID: PMC3314996 DOI: 10.1016/j.neuint.2012.01.010] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2011] [Revised: 01/09/2012] [Accepted: 01/11/2012] [Indexed: 11/18/2022]
Abstract
The ceruloplasmin mutant R701W, that causes a dramatic phenotype in the young heterozygous patient carrying this mutation, has been shown to have profound effects also in cell culture models. Here we show that Golgi rearrangement and degradation of the iron exporter ferroportin, that follow transfection of cells with this mutant, are accompanied by the massive production of reactive oxygen species (ROS) in the cell. Scavenging ROS production with different antioxidants, including reduced glutathione and zinc, restores Golgi morphology and rescues ferroportin on the cell membrane.
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Affiliation(s)
- Tiziana Persichini
- Department of Biology, University Roma Tre, v.le Marconi 446, Rome 00146, Italy
| | - Giovanni De Francesco
- Department of Biochemical Sciences, Sapienza University, p.le A. Moro 5, Rome 00185, Italy
| | - Caterina Capone
- Department of Biology, University Roma Tre, v.le Marconi 446, Rome 00146, Italy
| | - Antimo Cutone
- Department of Nutritional Environmental and Microbiological Sciences and Technologies, University of Molise, via De Sanctis, 87100 Campobasso, Italy
| | | | - Marco Colasanti
- Department of Biology, University Roma Tre, v.le Marconi 446, Rome 00146, Italy
| | - Giovanni Musci
- Department of Biology, University Roma Tre, v.le Marconi 446, Rome 00146, Italy
- Department of Nutritional Environmental and Microbiological Sciences and Technologies, University of Molise, via De Sanctis, 87100 Campobasso, Italy
- Corresponding author. Address: Department of Nutritional Environmental and Microbiological Sciences and Technologies, University of Molise, via De Sanctis snc, 87100 Campobasso, Italy. Tel.: +39 0874404160; fax: +39 0874404100.
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Tang WHW, Wu Y, Hartiala J, Fan Y, Stewart AFR, Roberts R, McPherson R, Fox PL, Allayee H, Hazen SL. Clinical and genetic association of serum ceruloplasmin with cardiovascular risk. Arterioscler Thromb Vasc Biol 2011; 32:516-22. [PMID: 22075249 DOI: 10.1161/atvbaha.111.237040] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
OBJECTIVE Ceruloplasmin (Cp) is an acute-phase reactant that is increased in inflammatory diseases and in acute coronary syndromes. Cp has recently been shown to possess nitric oxide (NO) oxidase catalytic activity, but its impact on long-term cardiovascular outcomes in stable cardiac patients has not been explored. METHODS AND RESULTS We examined serum Cp levels and their relationship with incident major adverse cardiovascular events (MACE; death, myocardial infarction [MI], stroke) over 3-year follow-up in 4177 patients undergoing elective coronary angiography. We also carried out a genome-wide association study to identify the genetic determinants of serum Cp levels and evaluate their relationship to prevalent and incident cardiovascular risk. In our cohort (age 63±11 years, 66% male, 32% history of MI, 31% diabetes mellitus), mean Cp level was 24±6 mg/dL. Serum Cp level was associated with greater risk of MI at 3 years (hazard ratio [quartile 4 versus 1] 2.35, 95% confidence interval [CI] 1.79-3.09, P<0.001). After adjustment for traditional risk factors, high-sensitivity C-reactive protein, and creatinine clearance, Cp remained independently predictive of MACE (hazard ratio 1.55, 95% CI 1.10-2.17, P=0.012). A 2-stage genome-wide association study identified a locus on chromosome 3 over the CP gene that was significantly associated with Cp levels (lead single-nucleotide polymorphism rs13072552; P=1.90×10(-11)). However, this variant, which leads to modestly increased serum Cp levels (≈1.5-2 mg/dL per minor allele copy), was not associated with coronary artery disease or future risk of MACE. CONCLUSIONS In stable cardiac patients, serum Cp provides independent risk prediction of long-term adverse cardiac events. Genetic variants at the CP locus that modestly affect serum Cp levels are not associated with prevalent or incident risk of coronary artery disease in this study population.
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Affiliation(s)
- W H Wilson Tang
- Department of Cardiovascular Medicine, Heart and Vascular Institute, Cleveland Clinic, 9500 Euclid Ave, Desk J3-4, Cleveland, OH 44195, USA.
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Vashchenko G, Bleackley MR, Griffiths TAM, MacGillivray RTA. Oxidation of organic and biogenic amines by recombinant human hephaestin expressed in Pichia pastoris. Arch Biochem Biophys 2011; 514:50-6. [PMID: 21802403 DOI: 10.1016/j.abb.2011.07.010] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2011] [Revised: 06/28/2011] [Accepted: 07/12/2011] [Indexed: 11/15/2022]
Abstract
Hephaestin is a multicopper ferroxidase involved in iron absorption in the small intestine. Expressed mainly on the basolateral surface of duodenal enterocytes, hephaestin facilitates the export of iron from the intestinal epithelium into blood by oxidizing Fe(2+) into Fe(3+), the only form of iron bound by the plasma protein transferrin. Structurally, the human hephaestin ectodomain is predicted to resemble ceruloplasmin, the major multicopper oxidase in blood. In addition to its ferroxidase activity, ceruloplasmin was reported to oxidize a wide range of organic compounds including a group of physiologically relevant substrates (biogenic amines). To study oxidation of organic substrates, the human hephaestin ectodomain was expressed in Pichia pastoris. The purified recombinant hephaestin has an average copper content of 4.2 copper atoms per molecule. The K(m) for Fe(2+) of hephaestin was determined to be 3.2μM which is consistent with the K(m) values for other multicopper ferroxidases. In addition, the K(m) values of hephaestin for such organic substrates as p-phenylenediamine and o-dianisidine are close to values determined for ceruloplasmin. However, in contrast to ceruloplasmin, hephaestin was incapable of direct oxidation of adrenaline and dopamine implying a difference in biological substrate specificities between these two homologous ferroxidases.
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Affiliation(s)
- Ganna Vashchenko
- Department of Biochemistry and Molecular Biology and Centre for Blood Research, University of British Columbia, Vancouver, BC, Canada
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25
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Ceruloplasmin activity in Holstein dairy cows: effects of lactation stages and anticoagulants. ACTA ACUST UNITED AC 2011. [DOI: 10.1007/s00580-010-1161-8] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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26
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Comparative analysis of serum proteomes of patients with cardiovascular disease. Clin Biochem 2010; 44:178-84. [PMID: 20934420 DOI: 10.1016/j.clinbiochem.2010.09.027] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2010] [Revised: 09/27/2010] [Accepted: 09/28/2010] [Indexed: 11/21/2022]
Abstract
OBJECTIVES To monitor increases or decreases in cardiovascular disease (CVD)-related proteins that will be released from the deposits or plaque on the inner wall of blood vessels. DESIGN AND METHODS Protein profiles of sera from healthy subjects and CVD patients were determined via 2-DE. Differentially expressed spots in CVD patients were identified by ESI-Q-TOF MS/MS. Retinol binding protein 4 (RBP4), ceruloplasmin, and hemopexin were confirmed by Western blotting and RBP4 was further verified by ELISA. RESULTS Approximately, 400 spots were detected in each gel via comparisons of the serum proteome. Among these spots, 19 spots were selected and identified by ESI-Q-TOF MS/MS (P<0.05). The expression levels of RBP4 and ceruloplasmin were higher in CVD patients by Western blotting. The level of immunoreactive RBP4 in CVD patients was higher than that in healthy subjects. CONCLUSIONS The three proteins identified in the present study may constitute potential biomarkers for the diagnosis of CVD in patients.
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Rivera-Mancía S, Pérez-Neri I, Ríos C, Tristán-López L, Rivera-Espinosa L, Montes S. The transition metals copper and iron in neurodegenerative diseases. Chem Biol Interact 2010; 186:184-99. [DOI: 10.1016/j.cbi.2010.04.010] [Citation(s) in RCA: 151] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2009] [Revised: 01/22/2010] [Accepted: 04/08/2010] [Indexed: 12/14/2022]
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Tapryal N, Mukhopadhyay C, Mishra MK, Das D, Biswas S, Mukhopadhyay CK. Glutathione synthesis inhibitor butathione sulfoximine regulates ceruloplasmin by dual but opposite mechanism: Implication in hepatic iron overload. Free Radic Biol Med 2010; 48:1492-500. [PMID: 20211720 DOI: 10.1016/j.freeradbiomed.2010.02.029] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/26/2009] [Revised: 01/10/2010] [Accepted: 02/19/2010] [Indexed: 12/01/2022]
Abstract
Glutathione (GSH) depletion is often detected in chronic pathological conditions like hepatitis C infection, alcohol consumption or xenobiotic assault with simultaneous reactive oxygen species (ROS) generation and hepatic iron overload. However, relation between GSH depletion and regulators of iron homeostasis is not clear so far. To determine that hepatic HepG2 cells were treated with GSH synthesis inhibitor butathione sulfoximine (BSO) and a dual regulation of ceruloplasmin (Cp) that involves in hepatic iron release was detected unlike other iron homeostasis regulators. BSO treatment that caused marginal GSH deficiency increased Cp synthesis due to increased transcription mediated by activator protein (AP)-1-binding site. In higher GSH deficiency (> 40 %) with increased ROS generation, Cp expression was decreased due to promotion of Cp mRNA decay mediated by 3'untranslated region (3'UTR) as found by transfecting chimera of chloramphenicol acetyl transferase (CAT) gene with Cp 3'UTR. RNA gel shift assay showed significant reduction in 3'UTR binding protein complex in similar condition. Decreased CAT expression and RNA-protein complex binding are reversed by pretreatment with antioxidant N-acetyl cysteine suggesting 3'UTR binding protein complex is redox-sensitive. This unique and opposite regulation of Cp provides a mechanism of hepatic iron-deposition during glutathione deficiency detected in chronic pathological conditions.
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Affiliation(s)
- Nisha Tapryal
- Special Centre for Molecular Medicine, Jawaharlal Nehru University, New Delhi - 110 067, India
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Tan YF, O'Toole N, Taylor NL, Millar AH. Divalent metal ions in plant mitochondria and their role in interactions with proteins and oxidative stress-induced damage to respiratory function. PLANT PHYSIOLOGY 2010; 152:747-61. [PMID: 20018591 PMCID: PMC2815878 DOI: 10.1104/pp.109.147942] [Citation(s) in RCA: 142] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/23/2009] [Accepted: 12/10/2009] [Indexed: 05/18/2023]
Abstract
Understanding the metal ion content of plant mitochondria and metal ion interactions with the proteome are vital for insights into both normal respiratory function and the process of protein damage during oxidative stress. We have analyzed the metal content of isolated Arabidopsis (Arabidopsis thaliana) mitochondria, revealing a 26:8:6:1 molar ratio for iron:zinc:copper:manganese and trace amounts of cobalt and molybdenum. We show that selective changes occur in mitochondrial copper and iron content following in vivo and in vitro oxidative stresses. Immobilized metal affinity chromatography charged with Cu(2+), Zn(2+), and Co(2+) was used to identify over 100 mitochondrial proteins with metal-binding properties. There were strong correlations between the sets of immobilized metal affinity chromatography-interacting proteins, proteins predicted to contain metal-binding motifs, and protein sets known to be oxidized or degraded during abiotic stress. Mitochondrial respiratory chain pathways and matrix enzymes varied widely in their susceptibility to metal-induced loss of function, showing the selectivity of the process. A detailed study of oxidized residues and predicted metal interaction sites in the tricarboxylic acid cycle enzyme aconitase identified selective oxidation of residues in the active site and showed an approach for broader screening of functionally significant oxidation events in the mitochondrial proteome.
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Effect of ceruloplasmin on the number and resistance of erythrocytes during acute physical exercise. Bull Exp Biol Med 2009; 148:188-90. [PMID: 20027324 DOI: 10.1007/s10517-009-0673-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
Acute physical exercise was followed by a decrease in the osmotic resistance of erythrocytes, shortening of the time-to-onset of erythrocyte hemolysis, and increase in the sorption capacity of the cell membrane. Administration of ceruloplasmin 24 h before physical exercise normalizes membrane resistance in red blood cells.
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Affiliation(s)
- George J. Brewer
- Departments of Human Genetics and Internal Medicine, University of Michigan Medical School,Ann Arbor, Michigan
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Assemand E, Lacroix M, Chahine R, Nadeau R, Mateescu MA. Gamma-irradiated ceruloplasmin affords antifibrillatory protection against ischemia/reperfusion damage in the isolated rat heart. Int J Radiat Biol 2009; 83:309-17. [PMID: 17457756 DOI: 10.1080/09553000701311229] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
PURPOSE Ceruloplasmin (CP), an important serum antioxidant, was previously found to reduce the incidence of ventricular fibrillation (VF) induced by ischemia and reperfusion in isolated rat hearts. The present study investigated whether CP sterilized by gamma-irradiation maintains its antiarrhythmic capacity and in vitro antioxidant properties. MATERIALS AND METHODS Isolated rat hearts submitted to regional ischemia (15 min), were reperfused (10 min) with native CP or with CP irradiated at various doses (1-3 kGy) in the absence or presence of tyrosine (Tyr). RESULTS All untreated hearts showed VF at reperfusion, which were all irreversible ventricular fibrillation (IVF). No IVF were found in hearts treated with native CP or gamma-irradiated CP. Cardioprotection afforded by irradiated CP (with or without Tyr) was slightly higher than that obtained with native CP. No VF at all (100% prevention) was found in hearts treated with CP irradiated alone or in the presence of tyrosine at 3 kGy. Tyrosine and irradiated tyrosine had no cardiotoxic or protective effects on reperfusion-induced arrhythmias. The Oxygen Radical Absorbing Capacity (ORAC), measured in vitro with beta-phycoerythrin (beta-PE) fluorescent indicator, was slightly higher for gamma-irradiated CP in the presence of Tyr. CONCLUSIONS Ceruloplasmin sterilized by gamma-irradiation maintains antioxidant and antiarrhythmic effects in the post-ischemia reperfused isolated rat heart.
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Affiliation(s)
- Emma Assemand
- Department of Chemistry and Biochemistry, Université du Québec à Montréal, Québec, Canada
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Altamura C, Squitti R, Pasqualetti P, Gaudino C, Palazzo P, Tibuzzi F, Lupoi D, Cortesi M, Rossini PM, Vernieri F. Ceruloplasmin/Transferrin system is related to clinical status in acute stroke. Stroke 2009; 40:1282-8. [PMID: 19228837 DOI: 10.1161/strokeaha.108.536714] [Citation(s) in RCA: 76] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
BACKGROUND AND PURPOSE In acute stroke, Iron (Fe) may amplify reperfusion injury by catalyzing the conversion of superoxide and hydrogen peroxide into highly reactive radicals. Transferrin (Tf) is the main protein regulating Fe homeostasis, whereas Ceruplasmin (CP) is a circulating ferroxidase enzyme able to oxidize ferrous ions to less toxic ferric forms. This study aims at investigating whether CP, Copper (Cu), Tf, and Fe play a role in the pathophysiology of acute stroke. METHODS We enrolled 35 acute stroke patients and 44 controls. All patients underwent: neurological examination assessed by National Institutes of Health Stroke Scale (NIHSS), ultrasound evaluation of carotid atherosclerosis, brain MRI to quantify ischemic lesion volume and measurement of serum levels of CP, Cu, Tf, Fe, hydro-peroxides, and Total plasmatic antioxidant capacity. RESULTS In patients, NIHSS scores were associated with Tf (r=-0.48, P=0.004), hydro-peroxides (r=0.34, P=0.046), CP (r=0.43, P=0.012), and lesion volume (r=0.50, P=0.004). Lesion volume was inversely associated with Tf (r=-0.44, P=0.012). CP and hydro-peroxides were also largely related (r=0.81, P<0.001). The model multiple R was 0.57, resulting in a 32.5% of explained NIHSS variance with Tf accounting for 23.4% and CP for 9.1%. CONCLUSIONS CP and Tf levels are representative of clinical status in acute stroke patients. Our findings suggest a protective role of Tf in acute stroke and a possible ambivalent role of CP.
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Affiliation(s)
- Claudia Altamura
- Neurologia Clinica, Università Campus Bio-Medico di Roma, Roma, Italy.
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Tapryal N, Mukhopadhyay C, Das D, Fox PL, Mukhopadhyay CK. Reactive oxygen species regulate ceruloplasmin by a novel mRNA decay mechanism involving its 3'-untranslated region: implications in neurodegenerative diseases. J Biol Chem 2008; 284:1873-83. [PMID: 19019832 DOI: 10.1074/jbc.m804079200] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Ceruloplasmin (Cp), a copper-containing protein, plays a significant role in body iron homeostasis as aceruloplasminemia patients and Cp knock-out mice exhibit iron overload in several tissues including liver and brain. Several other functions as oxidant, as antioxidant, and in nitric oxide metabolism are also attributed to Cp. Despite its role in iron oxidation and other biological oxidation reactions the regulation of Cp by reactive oxygen species (ROS) remains unexplored. Cp is synthesized in liver as a secretory protein and predominantly as a glycosylphosphatidylinositol-anchored membrane-bound form in astroglia. In this study we demonstrated that Cp expression is decreased by an mRNA decay mechanism in response to extracellular (H2O2) or intracellular oxidative stress (by mitochondrial chain blockers rotenone or antimycin A) in both hepatic and astroglial cells. The promotion of Cp mRNA decay is conferred by its 3'-untranslated region (UTR). When chloramphenicol acetyltransferase (CAT) gene was transfected as a chimera with Cp 3'-UTR in hepatic or astroglial cells, in response to either H2O2, rotenone, or antimycin A, the expression of CAT transcript was decreased, whereas expression of a 3'-UTR-less CAT transcript remained unaffected. RNA gel shift assay showed significant reduction in 3'-UTR-binding protein complex by ROS in both cell types that was reversed by the antioxidant N-acetylcysteine suggesting that ROS affects RNA-protein complex formation to promote Cp mRNA decay. Our finding is not only the first demonstration of regulation of Cp by ROS by a novel post-transcriptional mechanism but also provides a mechanism of iron deposition in neurodegenerative diseases.
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Affiliation(s)
- Nisha Tapryal
- Special Centre for Molecular Medicine, Jawaharlal Nehru University, New Delhi 110 067, India
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35
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Abstract
Human ceruloplasmin (CP) is a multicopper oxidase essential for normal iron homeostasis. The protein has six domains with one type-1 copper in each of domains 2, 4, and 6; the remaining coppers form a catalytic trinuclear cluster at the interface between domains 1 and 6. To assess the role of the coppers in CP thermal stability, we have probed the thermal unfolding process as a function of scan rate of holo- and apo-forms using several detection methods (circular dichroism, aromatic and 8-anilino-naphthalene-1-sulfonic acid fluorescence, visible absorption, activity, and differential scanning calorimetry). Both species of CP undergo irreversible thermal reactions to denatured states with significant residual structure. For identical scan rates, the thermal midpoint appears at temperatures 15-20 degrees higher for the holo- as compared with the apo- form. The thermal data for both forms were fit by a mechanistic model involving two consecutive, irreversible steps (N --> I --> D). The holo-intermediate, I, has lost one oxidized type-1 copper and secondary structure in at least one domain; however, the trinuclear copper cluster remains intact as it is functional in oxidase activity. The activation parameters obtained from the fits to the thermal transitions were used to assess the kinetic stability of apo- and holo-CP at physiological temperatures (i.e., at 37 degrees C). It emerges that native CP (i.e., with six coppers) is rather unstable and converts to I in <1 day at 37 degrees C. Nonetheless, this form remains intact for more than 2 weeks and may thus be a biologically relevant state of CP in vivo. In contrast, apo-CP unfolds rapidly: the denatured state is reached in <2 days at 37 degrees C.
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36
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Ray PS, Fox PL. A post-transcriptional pathway represses monocyte VEGF-A expression and angiogenic activity. EMBO J 2007; 26:3360-72. [PMID: 17611605 PMCID: PMC1933405 DOI: 10.1038/sj.emboj.7601774] [Citation(s) in RCA: 90] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2007] [Accepted: 05/30/2007] [Indexed: 01/01/2023] Open
Abstract
Monocyte-macrophage activation by interferon (IFN)-gamma is a key initiating event in inflammation. Usually, the macrophage response is self-limiting and inflammation resolves. Here, we describe a mechanism by which IFN-gamma contributes to inflammation resolution by suppressing expression of vascular endothelial growth factor-A (VEGF-A), a macrophage product that stimulates angiogenesis during chronic inflammation and tumorigenesis. VEGF-A was identified as a candidate target of the IFN-gamma-activated inhibitor of translation (GAIT) complex by bioinformatic analysis, and experimentally validated by messenger RNA-protein interaction studies. Although IFN-gamma induced persistent VEGF-A mRNA expression, translation was suppressed by delayed binding of the GAIT complex to a specific element delineated in the 3'UTR. Translational silencing resulted in decreased VEGF-A synthesis and angiogenic activity. Our results describe a unique anti-inflammatory pathway in which IFN-gamma-dependent induction of VEGF-A mRNA is translationally silenced by the same stimulus, and they suggest the GAIT system directs a post-transcriptional operon that contributes to inflammation resolution.
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Affiliation(s)
- Partho Sarothi Ray
- Department of Cell Biology, The Lerner Research Institute, Cleveland Clinic, Cleveland, OH, USA
| | - Paul L Fox
- Department of Cell Biology, The Lerner Research Institute, Cleveland Clinic, Cleveland, OH, USA
- Department of Cell Biology, The Lerner Research Institute, Cleveland Clinic, 9500 Euclid Ave., NC10, Cleveland, OH 44195, USA. Tel.: +1 216 444 8053; Fax: +1 216 444 9404; E-mail:
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Watanabe S, Nagano S, Duce J, Kiaei M, Li QX, Tucker SM, Tiwari A, Brown RH, Beal MF, Hayward LJ, Culotta VC, Yoshihara S, Sakoda S, Bush AI. Increased affinity for copper mediated by cysteine 111 in forms of mutant superoxide dismutase 1 linked to amyotrophic lateral sclerosis. Free Radic Biol Med 2007; 42:1534-42. [PMID: 17448900 DOI: 10.1016/j.freeradbiomed.2007.02.004] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/20/2006] [Revised: 02/04/2007] [Accepted: 02/12/2007] [Indexed: 11/27/2022]
Abstract
Mutations in Cu,Zn-superoxide dismutase (SOD1) cause familial amyotrophic lateral sclerosis (ALS). It has been proposed that neuronal cell death might occur due to inappropriately increased Cu interaction with mutant SOD1. Using Cu immobilized metal-affinity chromatography (IMAC), we showed that mutant SOD1 (A4V, G85R, and G93A) expressed in transfected COS7 cells, transgenic mouse spinal cord tissue, and transformed yeast possessed higher affinity for Cu than wild-type SOD1. Serine substitution for cysteine at the Cys111 residue in mutant SOD1 abolished the Cu interaction on IMAC. C111S substitution reversed the accelerated degradation of mutant SOD1 in transfected cells, suggesting that the Cys111 residue is critical for the stability of mutant SOD1. Aberrant Cu binding at the Cys111 residue may be a significant factor in altering mutant SOD1 behavior and may explain the benefit of controlling Cu access to mutant SOD1 in models of familial ALS.
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Affiliation(s)
- Shohei Watanabe
- Department of Neurology, Osaka University Graduate School of Medicine, Suita, Osaka 565-0871, Japan
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Healy J, Tipton K. Ceruloplasmin and what it might do. J Neural Transm (Vienna) 2007; 114:777-81. [PMID: 17406962 DOI: 10.1007/s00702-007-0687-7] [Citation(s) in RCA: 83] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2006] [Accepted: 11/22/2006] [Indexed: 01/15/2023]
Abstract
The blue coloured plasma protein ceruloplasmin binds up to 95% of circulating copper, and has several possible functions. It has been proposed to function in copper transport, oxidation of organic amines, iron(II) oxidation and the regulation of cellular iron levels, and catechols, radical scavenging and other antioxidant processes. This account will consider the relative importance of these multiple functions in terms of the physiological roles of ceruloplasmin.
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Affiliation(s)
- J Healy
- Department of Biochemistry, School of Biochemistry and Immunology, Trinity College, Dublin, Ireland.
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Das D, Tapryal N, Goswami S, Fox P, Mukhopadhyay C. Regulation of ceruloplasmin in human hepatic cells by redox active copper: identification of a novel AP-1 site in the ceruloplasmin gene. Biochem J 2007; 402:135-41. [PMID: 17032174 PMCID: PMC1783982 DOI: 10.1042/bj20060963] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Cp (ceruloplasmin), a copper containing plasma protein, mainly synthesized in the liver, is known to be functional between the interface of iron and copper metabolism. We have reported previously that Cp is regulated by cellular iron status, but the process of the regulation of Cp by copper still remains a subject for investigation. In the present paper, we show that PDTC (pyrrolidine dithiocarbamate), a thiol compound widely known to increase intracellular redox copper, regulates Cp expression in hepatic cells by a copper-dependent transcriptional mechanism. To find out the mechanism of induction, chimeric constructs of the Cp 5'-flanking region driving luciferase were transfected into human hepatic cells. Deletion and mutational analyses showed the requirement of a novel APRE [AP-1 (activator protein-1) responsive element] present about 3.7 kb upstream of the translation initiation site. The role of AP-1 was confirmed by electrophoretic mobility-shift analysis. Western blot and overexpression studies detected the AP-1 as a heterodimer of c-jun and c-fos proteins. The activation of AP-1 was found to be copper-dependent as a specific extracellular chelator bathocuproine disulfonic acid blocked PDTC-mediated induction of AP-1-DNA binding and increased reporter gene activity. Whereas, in a copper-free medium, PDTC failed to activate either AP-1 or Cp synthesis, supplementation of copper could reverse AP-1 activation and Cp synthesis. Our finding is not only the first demonstration of regulation of Cp by redox copper but may also explain previous findings of increased Cp expression in cancers like hepatocarcinoma, where the intracellular copper level is higher in a redox compromised environment.
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Affiliation(s)
- Dola Das
- *Special Centre for Molecular Medicine, Jawaharlal Nehru University, New Delhi 110 067, India
- †School of Life Sciences, Jawaharlal Nehru University, New Delhi 110 067, India
| | - Nisha Tapryal
- *Special Centre for Molecular Medicine, Jawaharlal Nehru University, New Delhi 110 067, India
| | - Shyamal K. Goswami
- *Special Centre for Molecular Medicine, Jawaharlal Nehru University, New Delhi 110 067, India
- †School of Life Sciences, Jawaharlal Nehru University, New Delhi 110 067, India
| | - Paul L. Fox
- ‡Department of Cell Biology, The Lerner Research Institute, Cleveland Clinic Foundation, Cleveland, OH 44195, U.S.A
| | - Chinmay K. Mukhopadhyay
- *Special Centre for Molecular Medicine, Jawaharlal Nehru University, New Delhi 110 067, India
- To whom correspondence should be addressed (email )
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Kapasi P, Chaudhuri S, Vyas K, Baus D, Komar AA, Fox PL, Merrick WC, Mazumder B. L13a blocks 48S assembly: role of a general initiation factor in mRNA-specific translational control. Mol Cell 2007; 25:113-26. [PMID: 17218275 PMCID: PMC1810376 DOI: 10.1016/j.molcel.2006.11.028] [Citation(s) in RCA: 80] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2006] [Revised: 10/23/2006] [Accepted: 11/30/2006] [Indexed: 01/30/2023]
Abstract
Transcript-specific translational control restricts macrophage inflammatory gene expression. The proinflammatory cytokine interferon-gamma induces phosphorylation of ribosomal protein L13a and translocation from the 60S ribosomal subunit to the interferon-gamma-activated inhibitor of translation (GAIT) complex. This complex binds the 3'UTR of ceruloplasmin mRNA and blocks its translation. Here, we elucidate the molecular mechanism underlying repression by L13a. Translation of the GAIT element-containing reporter mRNA is sensitive to L13a-mediated silencing when driven by internal ribosome entry sites (IRESs) that require initiation factor eIF4G, but is resistant to silencing when driven by eIF4F-independent IRESs, demonstrating a critical role for eIF4G. Interaction of L13a with eIF4G blocks 43S recruitment without suppressing eIF4F complex formation. eIF4G attack, e.g., by virus, stress, or caspases, is a well-known mechanism of global inhibition of protein synthesis. However, our studies reveal a unique mechanism in which targeting of eIF4G by mRNA-bound L13a elicits transcript-specific translational repression.
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Affiliation(s)
- Purvi Kapasi
- Department of Biological, Geological and Environmental Science, Cleveland State University, Cleveland, Ohio 44115
| | - Sujan Chaudhuri
- Department of Biological, Geological and Environmental Science, Cleveland State University, Cleveland, Ohio 44115
| | - Keyur Vyas
- Department of Biological, Geological and Environmental Science, Cleveland State University, Cleveland, Ohio 44115
| | - Diane Baus
- Department of Biochemistry, Case Western Reserve University School of Medicine, Cleveland, Ohio 44106
| | - Anton A. Komar
- Department of Biological, Geological and Environmental Science, Cleveland State University, Cleveland, Ohio 44115
| | - Paul L. Fox
- Department of Biological, Geological and Environmental Science, Cleveland State University, Cleveland, Ohio 44115
- Department of Cell Biology, Lerner Research Institute, Cleveland Clinic, Cleveland, Ohio 44195
| | - William C. Merrick
- Department of Biochemistry, Case Western Reserve University School of Medicine, Cleveland, Ohio 44106
| | - Barsanjit Mazumder
- Department of Biological, Geological and Environmental Science, Cleveland State University, Cleveland, Ohio 44115
- *Correspondence: E-mail: , Phone: 216-687-2435, Fax: 216-687-2932
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Awadallah SM, Hamad M, Jbarah I, Salem NM, Mubarak MS. Autoantibodies against oxidized LDL correlate with serum concentrations of ceruloplasmin in patients with cardiovascular disease. Clin Chim Acta 2006; 365:330-6. [PMID: 16274685 DOI: 10.1016/j.cca.2005.09.021] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2005] [Revised: 09/19/2005] [Accepted: 09/21/2005] [Indexed: 11/20/2022]
Abstract
BACKGROUND Ceruloplasmin (CP) has been suggested to play a role in the oxidative modification of LDL. The correlation between autoantibodies against oxidized LDL (anti-oxLDL), markers of oxidative stress, and the concentration of CP has not been previously investigated. We examined the status of these parameters in patients with myocardial infarction (MI) and stable angina. METHODS Blood samples were collected from patients with MI (n=56), stable angina (n=96) and from healthy controls (n=109). Levels of CP and copper were determined using turbidimetry and atomic absorption spectrophotometry, respectively. Levels of anti-oxLDL were obtained by ELISA. RESULTS Serum concentrations of CP, copper and anti-oxLDL were significantly higher in both groups of patients than those in controls. Among patient groups, concentrations of CP and copper were not significantly different, however, the concentrations of anti-oxLDL were higher in MI patients than that in angina (P=0.001), and were greatly influenced by underlying conditions such as diabetes mellitus, hypertension and smoking. Significant positive correlation was observed between serum concentrations of both CP and copper and the concentrations of anti-oxLDL in both patient groups but not in controls. CONCLUSIONS High concentrations of anti-oxLDL suggest an increase in oxidative stress that would contribute to disease severity. The observed correlation of CP with anti-oxLDL may suggest a possible pro-oxidative activity of CP in patients with cardiovascular disease.
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Affiliation(s)
- Samir M Awadallah
- Department of Medical Laboratory Sciences, Faculty of Allied Health Sciences, Hashemite University, P.O. Box 330077, Zarqa 13133, Jordan.
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Shukla N, Maher J, Masters J, Angelini GD, Jeremy JY. Does oxidative stress change ceruloplasmin from a protective to a vasculopathic factor? Atherosclerosis 2006; 187:238-50. [PMID: 16412446 DOI: 10.1016/j.atherosclerosis.2005.11.035] [Citation(s) in RCA: 92] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/07/2005] [Revised: 10/30/2005] [Accepted: 11/20/2005] [Indexed: 11/28/2022]
Abstract
Although ceruloplasmin (CP), a copper containing metalloenzyme, possesses antioxidant properties (e.g. ferroxidase activity), elevated circulating CP is associated with cardiovascular disease (CVD). This ambivalence is possibly due to the capacity of CP, via its coppers, to promote vasculopathic effects that include lipid oxidation, negation of nitric oxide bioactivity and endothelial cell apoptosis. In turn, these effects that are mediated by increased formation of reactive oxygen species (ROS), such as superoxide and hydrogen peroxide. There is also evidence that risk factors for CVD (in particular, diabetes mellitus and hyperhomocysteinaemia) may augment the vasculopathic impact of CP. In turn, it appears that ROS disrupt copper binding to CP, thereby impairing its normal protective function while liberating copper which in turn may promote oxidative pathology. The objective of this review, therefore, is to consider the epidemiology and pathophysiology of CP in relation to CVD, with particular emphasis on the relationship between CP and oxidative stress.
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Affiliation(s)
- Nilima Shukla
- Bristol Heart Institute, University of Bristol, Bristol BS2 8HW, United Kingdom
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Vassiliev V, Harris ZL, Zatta P. Ceruloplasmin in neurodegenerative diseases. ACTA ACUST UNITED AC 2005; 49:633-40. [PMID: 16269323 DOI: 10.1016/j.brainresrev.2005.03.003] [Citation(s) in RCA: 99] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2004] [Revised: 03/14/2005] [Accepted: 03/14/2005] [Indexed: 11/19/2022]
Abstract
For decades, abnormalities in ceruloplasmin (Cp) synthesis have been associated with neurodegenerative disease. From the early observation that low circulating serum ceruloplasmin levels served as a marker for Wilson's disease to the recent characterization of a neurodegenerative disorder associated with a complete lack of serum ceruloplasmin, the link between Cp and neuropathology has strengthened. The mechanisms associated with these different central nervous system abnormalities are very distinct. In Wilson's disease, a defect in the P-type ATPase results in abnormal hepatic copper accumulation that eventually leaks into the circulation and is abnormally deposited in the brain. In this case, copper deposition results in the neurodegenerative phenotype observed. Patients with autosomal recessive condition, aceruloplasminemia, lack the ferroxidase activity inherent to the multi-copper oxidase ceruloplasmin and develop abnormal iron accumulation within the central nervous system. In the following review ceruloplasmin gene expression, structure and function will be presented and the role of ceruloplasmin in iron metabolism will be discussed. The molecular events underlying the different forms of neurodegeneration observed will be presented. Understanding the role of ceruloplasmin within the central nervous system is fundamental to further our understanding of the pathology observed. Is the ferroxidase function more essential than the antioxidant role? Does Cp help maintain nitrosothiol stores or does it oxidize critical brain substrates? The answers to these questions hold the promise for the treatment of devastating neurodegenerative conditions such as Alzheimer's and Parkinson's diseases. It is essential to further elucidate the mechanism of the neuronal injury associated with these disorders.
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Abstract
Copper (Cu), a redox active metal, is an essential nutrient for all species studied to date. During the past decade, there has been increasing interest in the concept that marginal deficits of this element can contribute to the development and progression of a number of disease states including cardiovascular disease and diabetes. Deficits of this nutrient during pregnancy can result in gross structural malformations in the conceptus, and persistent neurological and immunological abnormalities in the offspring. Excessive amounts of Cu in the body can also pose a risk. Acute Cu toxicity can result in a number of pathologies, and in severe cases, death. Chronic Cu toxicity can result in liver disease and severe neurological defects. The concept that elevated ceruloplasmin is a risk factor for certain diseases is discussed. In this paper, we will review recent literature on the potential causes of Cu deficiency and Cu toxicity, and the pathological consequences associated with the above. Finally, we will review some of the potential biochemical lesions that might underlie these pathologies. Given that oxidative stress is a characteristic of Cu deficiency, the role of Cu in the oxidative defense system will receive special attention. The concept that excess Cu may be a precipitating factor in Alzheimer's disease is discussed.
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Affiliation(s)
- Janet Y Uriu-Adams
- Department of Nutrition, One Shields Ave., University of California-Davis, Davis, CA 95616, USA.
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46
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Tavridou A, Manolopoulos VG. Antioxidant properties of two novel 2-biphenylmorpholine compounds (EP2306 and EP2302) in vitro and in vivo. Eur J Pharmacol 2005; 505:213-21. [PMID: 15556155 DOI: 10.1016/j.ejphar.2004.10.047] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2004] [Revised: 10/18/2004] [Accepted: 10/20/2004] [Indexed: 11/20/2022]
Abstract
The oxidation of low-density lipoprotein (LDL) is an important event in the development of atherosclerosis. In the present study, the antioxidant properties of two novel 2-biphenylmorpholine compounds (EP2306 and EP2302) were studied. Both compounds inhibited dose-dependently the in vitro oxidation of LDL induced by copper ions. EP2306 and EP2302 increased significantly the lag phase of the oxidation reaction at 0.1 and 10 microM, respectively, whereas they reduced the rate of the reaction at 1 and 10 microM, respectively. This inhibitory effect was not due to a free radical scavenging or copper-chelating activity of EP2300 compounds. Moreover, EP2306 and EP2302 inhibited 12-lipoxygenase activity dose-dependently with IC50 values of 454 and 318 microM, respectively, but had no effect on 15-lipoxygenase activity. In hyperlipidaemic rabbits treated with EP2306 for 4 weeks, there was a decrease in thiobarbituric acid-reactive substance (TBARS) levels and a significant increase in total peroxyl radical-trapping potential (TRAP) levels as compared to control animals. The present data suggest that EP2300 compounds are effective inhibitors of copper-mediated LDL oxidation in vitro. Moreover, EP2306 acts as an antioxidant in hyperlipidaemic rabbits, a property which could be beneficial in reducing atherosclerosis.
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Affiliation(s)
- Anna Tavridou
- Laboratory of Pharmacology, Medical School, Democritus University of Thrace, I. Kavyri 6, 68100 Alexandroupolis, Greece
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Macintyre G, Gutfreund KS, Martin WRW, Camicioli R, Cox DW. Value of an enzymatic assay for the determination of serum ceruloplasmin. ACTA ACUST UNITED AC 2005; 144:294-301. [PMID: 15614251 DOI: 10.1016/j.lab.2004.08.005] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
The serum concentration of the copper protein ceruloplasmin has been an important diagnostic indicator of Wilson's disease (WD). It is widely quoted that 95% of people with WD have low serum ceruloplasmin concentrations. Current evidence suggests that a normal serum ceruloplasmin concentration is more common in patients with WD, particularly those with liver disease, perhaps in part because of the routine use of an immunologic assay. This assay might indicate a normal level of ceruloplasmin when the enzymatic activity is lower. Enzymatic activity is the biologically relevant parameter. We compared the immunologic measurement with the enzymatic assessment of oxidase activity in patients with liver or neurologic symptoms of unknown origin in whom WD was considered in the differential diagnosis. Although a strong correlation of ceruloplasmin protein concentration with oxidase activity was observed in controls, this was not the case for these patients. Twelve patients, presenting with various types of hepatic disease, demonstrated a weak correlation between ceruloplasmin protein concentration and oxidase activity. Ten percent of patients with neurologic symptoms ( n = 41) had low ceruloplasmin concentrations and oxidase activity, and another 8% had normal ceruloplasmin concentrations associated with low oxidase activity. Although the enzymatic method is preferred for its biologic relevance, ceruloplasmin analysis is not a reliable diagnostic parameter for the diagnosis of WD in patients with liver disease. An important use of the ceruloplasmin oxidase assay is in the follow-up of patients with WD. Ceruloplasmin oxidase activity was undetectable in sera from patients with WD who were undergoing long-term chelation therapy, suggesting an early sign of copper depletion and a need for subsequent monitoring for symptoms of copper deficiency.
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Sampath P, Mazumder B, Seshadri V, Gerber CA, Chavatte L, Kinter M, Ting SM, Dignam JD, Kim S, Driscoll DM, Fox PL. Noncanonical function of glutamyl-prolyl-tRNA synthetase: gene-specific silencing of translation. Cell 2004; 119:195-208. [PMID: 15479637 DOI: 10.1016/j.cell.2004.09.030] [Citation(s) in RCA: 208] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2004] [Revised: 08/21/2004] [Accepted: 09/10/2004] [Indexed: 10/26/2022]
Abstract
Aminoacyl tRNA synthetases (ARS) catalyze the ligation of amino acids to cognate tRNAs. Chordate ARSs have evolved distinctive features absent from ancestral forms, including compartmentalization in a multisynthetase complex (MSC), noncatalytic peptide appendages, and ancillary functions unrelated to aminoacylation. Here, we show that glutamyl-prolyl-tRNA synthetase (GluProRS), a bifunctional ARS of the MSC, has a regulated, noncanonical activity that blocks synthesis of a specific protein. GluProRS was identified as a component of the interferon (IFN)-gamma-activated inhibitor of translation (GAIT) complex by RNA affinity chromatography using the ceruloplasmin (Cp) GAIT element as ligand. In response to IFN-gamma, GluProRS is phosphorylated and released from the MSC, binds the Cp 3'-untranslated region in an mRNP containing three additional proteins, and silences Cp mRNA translation. Thus, GluProRS has divergent functions in protein synthesis: in the MSC, its aminoacylation activity supports global translation, but translocation of GluProRS to an inflammation-responsive mRNP causes gene-specific translational silencing.
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Affiliation(s)
- Prabha Sampath
- Department of Cell Biology, The Lerner Research Institute, The Cleveland Clinic Foundation, 9500 Euclid Avenue, Cleveland, OH 44195, USA
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Gabaldon M. Oxidation of cysteine and homocysteine by bovine albumin. Arch Biochem Biophys 2004; 431:178-88. [PMID: 15488466 DOI: 10.1016/j.abb.2004.08.028] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2004] [Revised: 08/27/2004] [Indexed: 11/21/2022]
Abstract
The autooxidation of cysteine and homocysteine to their disulfide forms was determined by measuring the time course of thiol groups disappearance. We found the oxidative chemistry of cysteine and homocysteine to be quite different. In the absence of added Cu(II), cysteine autooxidized at a slower rate than homocysteine, though in its presence cysteine oxidation was much faster, homocysteine being found to be a poor responder to copper catalysis. Albumin speeded up the spontaneous oxidation of both aminothiols, the reaction being faster with cysteine than with homocysteine. The copper content of different albumins was found to be highly variable, ranging from 12.75 to 0.64 microg Cu(II)/g albumin. We propose that copper bound to albumin possesses redox cycling activity to perform cysteine oxidation since: (i) copper elimination by copper chelators markedly reduces oxidation; and (ii) a positive correlation exists between the albumin copper content and the oxidation reaction rate.
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Affiliation(s)
- María Gabaldon
- Unidad de Histoquimia, Centro de Investigación, Hospital La Fe, Avenida Campanar, 21, 46009 Valencia, Spain.
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