1
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Herrera-Quintana L, Vázquez-Lorente H, Gamarra-Morales Y, Molina-López J, Planells E. Evolution of Status of Trace Elements and Metallothioneins in Patients with COVID-19: Relationship with Clinical, Biochemical, and Inflammatory Parameters. Metabolites 2023; 13:931. [PMID: 37623875 PMCID: PMC10456601 DOI: 10.3390/metabo13080931] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2023] [Revised: 08/04/2023] [Accepted: 08/08/2023] [Indexed: 08/26/2023] Open
Abstract
The inflammatory reaction and pathogenesis of COVID-19 may be modulated by circulating trace elements (Iron (Fe), Zinc (Zn), Copper (Cu), Manganese (Mn)) and Metallothioneins (MTs). Thus, the present study aimed to investigate their relationship with clinical, biochemical, and inflammatory parameters in patients with COVID-19 at the early Intensive Care Unit (ICU) phase. Critically ill patients (n = 86) were monitored from the first day of ICU admission until the third day of stay. Serum samples were used to assess mineral levels via Inductively Coupled Plasma Mass Spectrometry (ICP-MS) and MT levels via differential pulse voltammetry. Levels of Cu and MTs were significantly decreased after 3 days (p < 0.05), increasing the prevalence of Cu-deficient values from 50% to 65.3% (p = 0.015). Fe and Zn were shown to have a predictive value for mortality and severity. The present study suggests trace element deficiency may be a risk factor during early ICU treatment of COVID-19, as it is related to different biochemical and clinical parameters, indicating a possible beneficial effect of restoring proper levels of these micronutrients.
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Affiliation(s)
- Lourdes Herrera-Quintana
- Department of Physiology, School of Pharmacy, Institute of Nutrition and Food Technology “José Mataix”, University of Granada, 18071 Granada, Spain;
| | - Héctor Vázquez-Lorente
- Department of Physiology, School of Pharmacy, Institute of Nutrition and Food Technology “José Mataix”, University of Granada, 18071 Granada, Spain;
| | | | - Jorge Molina-López
- Faculty of Education, Psychology and Sports Sciences, University of Huelva, 21007 Huelva, Spain;
| | - Elena Planells
- Department of Physiology, School of Pharmacy, Institute of Nutrition and Food Technology “José Mataix”, University of Granada, 18071 Granada, Spain;
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2
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Miyazaki I, Asanuma M. Multifunctional Metallothioneins as a Target for Neuroprotection in Parkinson's Disease. Antioxidants (Basel) 2023; 12:antiox12040894. [PMID: 37107269 PMCID: PMC10135286 DOI: 10.3390/antiox12040894] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2023] [Revised: 03/27/2023] [Accepted: 04/04/2023] [Indexed: 04/29/2023] Open
Abstract
Parkinson's disease (PD) is characterized by motor symptoms based on a loss of nigrostriatal dopaminergic neurons and by non-motor symptoms which precede motor symptoms. Neurodegeneration accompanied by an accumulation of α-synuclein is thought to propagate from the enteric nervous system to the central nervous system. The pathogenesis in sporadic PD remains unknown. However, many reports indicate various etiological factors, such as oxidative stress, inflammation, α-synuclein toxicity and mitochondrial impairment, drive neurodegeneration. Exposure to heavy metals contributes to these etiopathogenesis and increases the risk of developing PD. Metallothioneins (MTs) are cysteine-rich metal-binding proteins; MTs chelate metals and inhibit metal-induced oxidative stress, inflammation and mitochondrial dysfunction. In addition, MTs possess antioxidative properties by scavenging free radicals and exert anti-inflammatory effects by suppression of microglial activation. Furthermore, MTs recently received attention as a potential target for attenuating metal-induced α-synuclein aggregation. In this article, we summarize MTs expression in the central and enteric nervous system, and review protective functions of MTs against etiopathogenesis in PD. We also discuss neuroprotective strategies for the prevention of central dopaminergic and enteric neurodegeneration by targeting MTs. This review highlights multifunctional MTs as a target for the development of disease-modifying drugs for PD.
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Affiliation(s)
- Ikuko Miyazaki
- Department of Medical Neurobiology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama 700-8558, Japan
| | - Masato Asanuma
- Department of Medical Neurobiology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama 700-8558, Japan
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3
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Grignano E, Cantero-Aguilar L, Tuerdi Z, Chabane T, Vazquez R, Johnson N, Zerbit J, Decroocq J, Birsen R, Fontenay M, Kosmider O, Chapuis N, Bouscary D. Dihydroartemisinin-induced ferroptosis in acute myeloid leukemia: links to iron metabolism and metallothionein. Cell Death Discov 2023; 9:97. [PMID: 36928207 PMCID: PMC10020442 DOI: 10.1038/s41420-023-01371-8] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2022] [Revised: 02/09/2023] [Accepted: 02/15/2023] [Indexed: 03/18/2023] Open
Abstract
Artemisinin is an anti-malarial drug that has shown anticancer properties. Recently, ferroptosis was reported to be induced by dihydroartemisinin (DHA) and linked to iron increase. In the current study, we determined the effect of DHA in leukemic cell lines on ferroptosis induction and iron metabolism and the cytoprotective effect triggered in leukemic cells. We found that treatment of DHA induces early ferroptosis by promoting ferritinophagy and subsequent iron increase. Furthermore, our study demonstrated that DHA activated zinc metabolism signaling, especially the upregulation of metallothionein (MT). Supportingly, we showed that inhibition MT2A and MT1M isoforms enhanced DHA-induced ferroptosis. Finally, we demonstrated that DHA-induced ferroptosis alters glutathione pool, which is highly dependent on MTs-driven antioxidant response. Taken together, our study indicated that DHA activates ferritinophagy and subsequent ferroptosis in AML and that MTs are involved in glutathione regenerating and antioxidant response.
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Affiliation(s)
- E Grignano
- INSERM U1016, Institut Cochin, Paris, France. .,CNRS UMR8104, Paris, France. .,Université Paris Descartes, Faculté de Médecine Sorbonne Paris Cité, Paris, France. .,Equipe Labellisée Ligue Nationale Contre le Cancer (LNCC), Paris, France. .,Assistance Publique-Hôpitaux de Paris, Hôpitaux Universitaires Paris Centre, Service d'Hématologie Clinique, Paris, France.
| | - L Cantero-Aguilar
- INSERM U1016, Institut Cochin, Paris, France.,CNRS UMR8104, Paris, France.,Université Paris Descartes, Faculté de Médecine Sorbonne Paris Cité, Paris, France.,Equipe Labellisée Ligue Nationale Contre le Cancer (LNCC), Paris, France
| | - Z Tuerdi
- INSERM U1016, Institut Cochin, Paris, France.,CNRS UMR8104, Paris, France.,Université Paris Descartes, Faculté de Médecine Sorbonne Paris Cité, Paris, France.,Equipe Labellisée Ligue Nationale Contre le Cancer (LNCC), Paris, France
| | - T Chabane
- INSERM U1016, Institut Cochin, Paris, France.,CNRS UMR8104, Paris, France.,Université Paris Descartes, Faculté de Médecine Sorbonne Paris Cité, Paris, France.,Equipe Labellisée Ligue Nationale Contre le Cancer (LNCC), Paris, France
| | - R Vazquez
- INSERM U1016, Institut Cochin, Paris, France.,CNRS UMR8104, Paris, France.,Université Paris Descartes, Faculté de Médecine Sorbonne Paris Cité, Paris, France.,Equipe Labellisée Ligue Nationale Contre le Cancer (LNCC), Paris, France.,Assistance Publique-Hôpitaux de Paris, Hôpitaux Universitaires Paris Centre, Service d'Hématologie Biologique, Paris, France
| | - N Johnson
- INSERM U1016, Institut Cochin, Paris, France.,CNRS UMR8104, Paris, France.,Université Paris Descartes, Faculté de Médecine Sorbonne Paris Cité, Paris, France.,Equipe Labellisée Ligue Nationale Contre le Cancer (LNCC), Paris, France.,Assistance Publique-Hôpitaux de Paris, Hôpitaux Universitaires Paris Centre, Service d'Hématologie Clinique, Paris, France
| | - J Zerbit
- Assistance Publique-Hôpitaux de Paris, Hôpitaux Universitaires Paris Centre, Pharmacie, Paris, France
| | - J Decroocq
- INSERM U1016, Institut Cochin, Paris, France.,CNRS UMR8104, Paris, France.,Université Paris Descartes, Faculté de Médecine Sorbonne Paris Cité, Paris, France.,Equipe Labellisée Ligue Nationale Contre le Cancer (LNCC), Paris, France.,Assistance Publique-Hôpitaux de Paris, Hôpitaux Universitaires Paris Centre, Service d'Hématologie Clinique, Paris, France
| | - R Birsen
- INSERM U1016, Institut Cochin, Paris, France.,CNRS UMR8104, Paris, France.,Université Paris Descartes, Faculté de Médecine Sorbonne Paris Cité, Paris, France.,Equipe Labellisée Ligue Nationale Contre le Cancer (LNCC), Paris, France.,Assistance Publique-Hôpitaux de Paris, Hôpitaux Universitaires Paris Centre, Service d'Hématologie Clinique, Paris, France
| | - M Fontenay
- INSERM U1016, Institut Cochin, Paris, France.,CNRS UMR8104, Paris, France.,Université Paris Descartes, Faculté de Médecine Sorbonne Paris Cité, Paris, France.,Equipe Labellisée Ligue Nationale Contre le Cancer (LNCC), Paris, France.,Assistance Publique-Hôpitaux de Paris, Hôpitaux Universitaires Paris Centre, Service d'Hématologie Biologique, Paris, France
| | - O Kosmider
- INSERM U1016, Institut Cochin, Paris, France.,CNRS UMR8104, Paris, France.,Université Paris Descartes, Faculté de Médecine Sorbonne Paris Cité, Paris, France.,Equipe Labellisée Ligue Nationale Contre le Cancer (LNCC), Paris, France.,Assistance Publique-Hôpitaux de Paris, Hôpitaux Universitaires Paris Centre, Service d'Hématologie Biologique, Paris, France
| | - N Chapuis
- INSERM U1016, Institut Cochin, Paris, France.,CNRS UMR8104, Paris, France.,Université Paris Descartes, Faculté de Médecine Sorbonne Paris Cité, Paris, France.,Equipe Labellisée Ligue Nationale Contre le Cancer (LNCC), Paris, France.,Assistance Publique-Hôpitaux de Paris, Hôpitaux Universitaires Paris Centre, Service d'Hématologie Biologique, Paris, France
| | - D Bouscary
- INSERM U1016, Institut Cochin, Paris, France.,CNRS UMR8104, Paris, France.,Université Paris Descartes, Faculté de Médecine Sorbonne Paris Cité, Paris, France.,Equipe Labellisée Ligue Nationale Contre le Cancer (LNCC), Paris, France.,Assistance Publique-Hôpitaux de Paris, Hôpitaux Universitaires Paris Centre, Service d'Hématologie Clinique, Paris, France.,Member of OPALE Carnot Institute, The Organization for Partnerships in Leukemia, Paris, France
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4
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Light and heavy ferritin chain expression in the liver and kidneys of Wistar rats: aging, sex differences, and impact of gonadectomy. Arh Hig Rada Toksikol 2022; 73:48-61. [PMID: 35390238 PMCID: PMC8999590 DOI: 10.2478/aiht-2022-73-3621] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2021] [Accepted: 03/01/2022] [Indexed: 12/02/2022] Open
Abstract
Ferritin is the main intracellular storage of iron. Animal studies show that female liver and kidney express more ferritin and accumulate more iron than male. However, no study so far has investigated sex and age differences in light (FtL) and heavy (FtH) ferritin chain expression. To address this, we relied on specific antibodies and immunochemical methods to analyse the expression of both ferritin chains in the liver and kidney of 3-month and 2-year-old male and female Wistar rats. To see how sex hormones may affect expression we also studied adult animals gonadectomised at the age of 10 weeks. FtL and FtH were more expressed in both organs of female rats, while gonadectomy increased the expression in males and decreased it in females, which suggests that it is stimulated by female and inhibited by male steroid hormones. Normal kidney ferritin distribution and change with aging warrant more attention in studies of (patho) physiological and toxicological processes.
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5
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Yiwen W, Xiaohan T, Chunfeng Z, Xiaoyu Y, Yaodong M, Huanhuan Q. Genetics of metallothioneins in Drosophilamelanogaster. CHEMOSPHERE 2022; 288:132562. [PMID: 34653491 DOI: 10.1016/j.chemosphere.2021.132562] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/12/2021] [Revised: 10/08/2021] [Accepted: 10/11/2021] [Indexed: 06/13/2023]
Abstract
Metallothioneins (MTs) are ubiquitous metal-chelating proteins involved in cellular metal homeostasis. MTs were found to be related with almost all the biological processes and their malfunctioning is responsible for a lot of important human diseases. Invertebrate MTs were also used broadly as biomarkers of metal contamination due to their inducible expression by metal exposure. MT system plays a significant role in maintaining human health and ecological stability. Drosophila melanogaster, the vinegar fly, is a perfect model for studying insect MT systems. Six MTs were identified in D. melanogaster, and were designated MtnA to F. All the MTs are considered as Cu-thioneins except for MtnF, which is putatively a Zn-thionein. Expression of all the MTs are regulated by MTF-1/MRE system, thus being able to be induced by heavy metal exposure. The expression pattern and function of separated MTs are partially overlapped and partially distinct. In this work, we made a summary of all the studies on D. melanogaster MTs. From this review, we noted that, compared with studies on mammalian MTs, the understanding of the MT system of D. melanogaster and other invertebrates, especially the regulation mechanism for MT expression and protein-protein interaction with them, is still in a low level.
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Affiliation(s)
- Wang Yiwen
- School of Pharmaceutical Science and Technology, Tianjin University, 300072, Tianjin, China
| | - Tian Xiaohan
- School of Pharmaceutical Science and Technology, Tianjin University, 300072, Tianjin, China
| | - Zhu Chunfeng
- School of Life Sciences, Tianjin University, 300072, Tianjin, China
| | - Yu Xiaoyu
- School of Pharmaceutical Science and Technology, Tianjin University, 300072, Tianjin, China
| | - Miao Yaodong
- Second Affiliated Hospital of Tianjin University of Traditional Chinese Medicine, 300250, Tianjin, China
| | - Qiao Huanhuan
- Academy of Medical Engineering and Translational Medicine, Tianjin University, 300072, Tianjin, China.
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6
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Abstract
The functions, purposes, and roles of metallothioneins have been the subject of speculations since the discovery of the protein over 60 years ago. This article guides through the history of investigations and resolves multiple contentions by providing new interpretations of the structure-stability-function relationship. It challenges the dogma that the biologically relevant structure of the mammalian proteins is only the one determined by X-ray diffraction and NMR spectroscopy. The terms metallothionein and thionein are ambiguous and insufficient to understand biological function. The proteins need to be seen in their biological context, which limits and defines the chemistry possible. They exist in multiple forms with different degrees of metalation and types of metal ions. The homoleptic thiolate coordination of mammalian metallothioneins is important for their molecular mechanism. It endows the proteins with redox activity and a specific pH dependence of their metal affinities. The proteins, therefore, also exist in different redox states of the sulfur donor ligands. Their coordination dynamics allows a vast conformational landscape for interactions with other proteins and ligands. Many fundamental signal transduction pathways regulate the expression of the dozen of human metallothionein genes. Recent advances in understanding the control of cellular zinc and copper homeostasis are the foundation for suggesting that mammalian metallothioneins provide a highly dynamic, regulated, and uniquely biological metal buffer to control the availability, fluctuations, and signaling transients of the most competitive Zn(II) and Cu(I) ions in cellular space and time.
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Affiliation(s)
- Artur Krężel
- Department of Chemical Biology, Faculty of Biotechnology, University of Wrocław, Wrocław 50-383, Poland
| | - Wolfgang Maret
- Departments of Biochemistry and Nutritional Sciences, School of Life Course Sciences, Faculty of Life Sciences and Medicine, King's College London, London SE1 9NH, U.K
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7
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Wei Z, Hao C, Huangfu J, Srinivasagan R, Zhang X, Fan X. Aging lens epithelium is susceptible to ferroptosis. Free Radic Biol Med 2021; 167:94-108. [PMID: 33722625 PMCID: PMC8096685 DOI: 10.1016/j.freeradbiomed.2021.02.010] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/29/2020] [Revised: 01/29/2021] [Accepted: 02/07/2021] [Indexed: 12/11/2022]
Abstract
Age-related cataracts (ARC) are the primary cause of blindness worldwide, and oxidative stress is considered the central pathogenesis of age-related cataractogenesis. Interestingly, ample evidence suggests that there is no remarkable apoptosis present in aged and cataractous human lenses despite the profound disruption of redox homeostasis, raising an essential question regarding the existence of other cell death mechanisms. Here we sought to explore the lens epithelial cell's (LEC) susceptibility to ferroptosis after documentation has concluded that aged and cataractous human lenses manifest with increased reactive oxygen species (ROS) formation, elevated lipid peroxidation, and accumulative intracellular redox-active iron, constituting the three hallmarks of ferroptosis during aging and cataractogenesis. Here we show that very low concentrations of system Xc- inhibitor Erastin (0.5 μM) and glutathione peroxidase 4 (GPX4) inhibitor RSL3 (0.1 μM) can drastically induce human LEC (FHL124) ferroptosis in vitro and mouse lens epithelium ferroptosis ex vivo. Depletion of intracellular glutathione (GSH) in human LECs and mouse lens epithelium significantly sensitizes ferroptosis, particularly under RSL3 challenge. Intriguingly, both human LECs and the mouse lens epithelium demonstrate an age-related sensitization of ferroptosis. Transcriptome analysis indicates that clusters of genes are up-or down-regulated in aged LECs, impacting cellular redox and iron homeostases, such as downregulation of both cystine/glutamate antiporter subunits SLC7A11 and SLC3A2 and iron exporter ferroportin (SLC40A1). Here, for the first time, we are suggesting that LECs are highly susceptible to ferroptosis. Moreover, aged and cataractous human lenses may possess more pro-ferroptotic criteria than any other organ in the human body.
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Affiliation(s)
- Zongbo Wei
- Department of Cellular Biology and Anatomy, Medical College of Georgia at Augusta University, Augusta, Georgia
| | - Caili Hao
- Department of Cellular Biology and Anatomy, Medical College of Georgia at Augusta University, Augusta, Georgia
| | - Jingru Huangfu
- Department of Cellular Biology and Anatomy, Medical College of Georgia at Augusta University, Augusta, Georgia; Department of Ophthalmology, Chongqing Medical University, Chongqing, China
| | - Ramkumar Srinivasagan
- Department of Pharmacology, Case Western Reserve University, Cleveland, OH, United States
| | - Xiang Zhang
- Genomics, Epigenomics and Sequencing Core, Department of Environmental and Public Health Sciences, University of Cincinnati, Cincinnati, OH, United States
| | - Xingjun Fan
- Department of Cellular Biology and Anatomy, Medical College of Georgia at Augusta University, Augusta, Georgia.
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8
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Lopes de Andrade V, Marreilha dos Santos AP, Aschner M. NEUROTOXICITY OF METAL MIXTURES. ADVANCES IN NEUROTOXICOLOGY 2021; 5:329-364. [PMID: 34263093 PMCID: PMC8276944 DOI: 10.1016/bs.ant.2020.12.003] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Environmental exposures and/or alterations in the homeostasis of essential transition metals (ETM), such as Fe, Cu, Zn or Mn, are known to contribute to neurodegenerative diseases (ND), such as Alzheimer's Disease (AD) and Parkinson's Disease (PD). Aberrant ETM homeostasis leads to altered distributions, as significant amounts may accumulate in specific brain areas, while causing metal deficiency in others. The disruption of processes reliant on the interplay between these ETM, may lead to loss of metal balance and the ensuing neurotoxicity via shared mechanisms, such as the induction of oxidative stress (OS). Both ETM imbalance and OS may play a role, via complex positive loop processes, in primary neuropathological signatures of AD, such as the accumulation of amyloid plaques and neurofibrillary tangles (NTF), and in PD, α-Syn aggregation and loss of dopamine(DA)rgic neurons. The association between ETM imbalance and ND is rarely approached under the view that metals such as Fe, Cu, Zn and Mn, can act as dangerous endogenous neurotoxic mixtures when their control mechanisms became disrupted. In fact, their presence as mixtures implies intricacies, which should be kept in mind when developing therapies for complex disorders of metal dyshomeostasis, which commonly occur in ND.
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Affiliation(s)
- Vanda Lopes de Andrade
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa. Av. Prof. Gama Pinto, 1649-003 Lisboa, Portugal
| | - Ana Paula Marreilha dos Santos
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa. Av. Prof. Gama Pinto, 1649-003 Lisboa, Portugal
| | - Michael Aschner
- Albert Einstein College of Medicine. Einstein Center of Toxicology.1300 Morris Park Avenue. Bronx, NY 10461
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9
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Forgotten partners and function regulators of inducible metallothioneins. Arh Hig Rada Toksikol 2020; 70:256-264. [PMID: 32623859 DOI: 10.2478/aiht-2019-70-3317] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2019] [Accepted: 11/01/2019] [Indexed: 11/21/2022] Open
Abstract
Metallothioneins are peculiar cysteine rich, heat resistant, small cellular plasma proteins expressed through almost all life forms. The currently established biological functions of metallothioneins are the homeostasis of essential metals and protection against toxic transitional metals (TM) alongside defence from oxidative stress by direct scavenging of reactive oxygen and nitrogen species (ROS and RNS). In mammals, among the four main evolutionary conserved forms, only the ubiquitously expressed metallothionein 1 and 2 (here abbreviated as MT) are inducible by TM, oxidative stress, glucocorticoids and starvation among various other stimuli. However, more than sixty years after being discovered, metallothioneins still bear unresolved issues about their possible physiological function and regulation. The biological function of MTs has still not been associated with the in vitro-demonstrated capacity of MT interaction with cellular molecules glutathione (GSH) or adenosine triphosphate (ATP), or with the possibility of direct iron-MT binding in the reducing intracellular environment of some organelles, e.g. lysosomes. Iron as the most abundant cellular TM is also one of the main physiological sources of ROS. Moreover, iron exhibits strain, sex and age differences that reflected ROS generation and MT induction in (patho)physiology and toxicology studies. A recent study showed that iron sex differences follows expression of both ferritin and MT leading to wide implications from essential TM interconnectivity to aging. This review places emphasis on biochemically proven but physiologically ignored interactions of MT with iron to stimulate advanced research for establishing a wide frame of the biological roles of MTs important for health and longevity.
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10
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Chatterjee S, Kumari S, Rath S, Priyadarshanee M, Das S. Diversity, structure and regulation of microbial metallothionein: metal resistance and possible applications in sequestration of toxic metals. Metallomics 2020; 12:1637-1655. [PMID: 32996528 DOI: 10.1039/d0mt00140f] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Metallothioneins (MTs) are a group of cysteine-rich, universal, low molecular weight proteins distributed widely in almost all major taxonomic groups ranging from tiny microbes to highly organized vertebrates. The primary function of this protein is storage, transportation and binding of metals, which enable microorganisms to detoxify heavy metals. In the microbial world, these peptides were first identified in a cyanobacterium Synechococcus as the SmtA protein which exhibits high affinity towards rising level of zinc and cadmium to preserve metal homeostasis in a cell. In yeast, MTs aid in reserving copper and confer protection against copper toxicity by chelating excess copper ions in a cell. Two MTs, CUP1 and Crs5, originating from Saccharomyces cerevisiae predominantly bind to copper though are capable of binding with zinc and cadmium ions. MT superfamily 7 is found in ciliated protozoa which show high affinity towards copper and cadmium. Several tools and techniques, such as western blot, capillary electrophoresis, inductively coupled plasma, atomic emission spectroscopy and high performance liquid chromatography, have been extensively utilized for the detection and quantification of microbial MTs which are utilized for the efficient remediation and sequestration of heavy metals from a contaminated environment.
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Affiliation(s)
- Shreosi Chatterjee
- Laboratory of Environmental Microbiology and Ecology (LEnME), Department of Life Science, National Institute of Technology, Rourkela 769 008, Odisha, India.
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11
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Wong DL, Yuan AT, Korkola NC, Stillman MJ. Interplay between Carbonic Anhydrases and Metallothioneins: Structural Control of Metalation. Int J Mol Sci 2020; 21:E5697. [PMID: 32784815 PMCID: PMC7460868 DOI: 10.3390/ijms21165697] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2020] [Revised: 07/31/2020] [Accepted: 08/05/2020] [Indexed: 12/13/2022] Open
Abstract
Carbonic anhydrases (CAs) and metallothioneins (MTs) are both families of zinc metalloproteins central to life, however, they coordinate and interact with their Zn2+ ion cofactors in completely different ways. CAs and MTs are highly sensitive to the cellular environment and play key roles in maintaining cellular homeostasis. In addition, CAs and MTs have multiple isoforms with differentiated regulation. This review discusses current literature regarding these two families of metalloproteins in carcinogenesis, with a dialogue on the association of these two ubiquitous proteins in vitro in the context of metalation. Metalation of CA by Zn-MT and Cd-MT is described. Evidence for protein-protein interactions is introduced from changes in metalation profiles of MT from electrospray ionization mass spectrometry and the metalation rate from stopped-flow kinetics. The implications on cellular control of pH and metal donation is also discussed in the context of diseased states.
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Affiliation(s)
| | | | | | - Martin J. Stillman
- Department of Chemistry, The University of Western Ontario, 1151 Richmond St., London, ON N6A5B7, Canada; (D.L.W.); (A.T.Y.); (N.C.K.)
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12
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Loxham M, Woo J, Singhania A, Smithers NP, Yeomans A, Packham G, Crainic AM, Cook RB, Cassee FR, Woelk CH, Davies DE. Upregulation of epithelial metallothioneins by metal-rich ultrafine particulate matter from an underground railway. Metallomics 2020; 12:1070-1082. [PMID: 32297622 DOI: 10.1039/d0mt00014k] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Airborne particulate matter (PM) is a leading cause of mortality and morbidity. However, understanding of the range and mechanisms of effects of PM components is poor. PM generated in underground railways is rich in metals, especially iron. In the ultrafine (UFPM; <0.1 μm diameter) fraction, the combination of small size and metal enrichment poses an unknown health risk. This study aimed to analyse transcriptomic responses to underground UFPM in primary bronchial epithelial cells (PBECs), a key site of PM deposition. The oxidation state of iron in UFPM from an underground station was determined by X-ray absorption near edge structure (XANES) spectroscopy. Antioxidant response was assayed using a reporter cell line transfected with an antioxidant response element (ARE)-luciferase construct. Differentiated PBECs were exposed to UFPM for 6 h or 24 h for RNA-Seq and RT-qPCR analysis. XANES showed predominance of redox-active Fe3O4, with ROS generation confirmed by induction of ARE-luciferase expression. 6 h exposure of PBECs to UFPM identified 52 differentially expressed genes (DEGs), especially associated with epithelial maintenance, whereas 24 h exposure yielded 23 DEGs, particularly involved with redox homeostasis and metal binding. At both timepoints, there was upregulation of members of the metallothionein family, low molecular weight proteins with antioxidant activity whose main function is binding and homeostasis of zinc and copper ions, but not iron ions. This upregulation was partially inhibited by metal chelation or ROS scavenging. These data suggest differential regulation of responses to metal-rich UFPM depending on exposure period, and highlight novel pathways and markers of PM exposure, with the role of metallothioneins warranting further investigation.
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Affiliation(s)
- Matthew Loxham
- School of Clinical and Experimental Sciences, University of Southampton Faculty of Medicine, University Hospital Southampton, Tremona Road, Southampton, UKSO16 6YD. and NIHR Southampton Biomedical Research Centre, University Hospital Southampton, Tremona Road, Southampton, UKSO16 6YD and Institute for Life Sciences, Highfield Campus, University of Southampton, Southampton, UKSO17 1BJ and Southampton Marine and Maritime Institute, University of Southampton, Boldrewood Innovation Campus, Southampton, UKSO16 7QF
| | - Jeongmin Woo
- School of Clinical and Experimental Sciences, University of Southampton Faculty of Medicine, University Hospital Southampton, Tremona Road, Southampton, UKSO16 6YD.
| | - Akul Singhania
- School of Clinical and Experimental Sciences, University of Southampton Faculty of Medicine, University Hospital Southampton, Tremona Road, Southampton, UKSO16 6YD.
| | - Natalie P Smithers
- School of Clinical and Experimental Sciences, University of Southampton Faculty of Medicine, University Hospital Southampton, Tremona Road, Southampton, UKSO16 6YD.
| | - Alison Yeomans
- Cancer Research UK Centre, Cancer Sciences, University of Southampton Faculty of Medicine, University Hospital Southampton, Southampton, UKSO16 6YD
| | - Graham Packham
- Cancer Research UK Centre, Cancer Sciences, University of Southampton Faculty of Medicine, University Hospital Southampton, Southampton, UKSO16 6YD
| | - Alina M Crainic
- National Centre for Advanced Tribology (nCATS), Mechanical Engineering, Faculty of Engineering and Physical Sciences, University of Southampton, Southampton, UKSO17 1BJ
| | - Richard B Cook
- National Centre for Advanced Tribology (nCATS), Mechanical Engineering, Faculty of Engineering and Physical Sciences, University of Southampton, Southampton, UKSO17 1BJ
| | - Flemming R Cassee
- Centre for Sustainability, Environment, and Health, National Institute for Public Health and the Environment (RIVM), Bilthoven, The Netherlands and Institute for Risk Assessment Sciences (IRAS), Utrecht University, Utrecht, The Netherlands
| | - Christopher H Woelk
- School of Clinical and Experimental Sciences, University of Southampton Faculty of Medicine, University Hospital Southampton, Tremona Road, Southampton, UKSO16 6YD.
| | - Donna E Davies
- School of Clinical and Experimental Sciences, University of Southampton Faculty of Medicine, University Hospital Southampton, Tremona Road, Southampton, UKSO16 6YD. and NIHR Southampton Biomedical Research Centre, University Hospital Southampton, Tremona Road, Southampton, UKSO16 6YD and Institute for Life Sciences, Highfield Campus, University of Southampton, Southampton, UKSO17 1BJ
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13
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Sarayloo F, Dionne-Laporte A, Catoire H, Rochefort D, Houle G, Ross JP, Akçimen F, Barros Oliveira RD, Turecki G, Dion PA, Rouleau GA. Mineral absorption is an enriched pathway in a brain region of restless legs syndrome patients with reduced MEIS1 expression. PLoS One 2019; 14:e0225186. [PMID: 31725784 PMCID: PMC6855629 DOI: 10.1371/journal.pone.0225186] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2019] [Accepted: 10/30/2019] [Indexed: 12/15/2022] Open
Abstract
Restless legs syndrome is a common complex disorder with different genetic and environmental risk factors. Here we used human cell lines to conduct an RNA-Seq study and observed how the gene showing the most significant association with RLS, MEIS1, acts as a regulator of the expression of many other genes. Some of the genes affected by its expression level are linked to pathways previously reported to be associated with RLS. We found that in cells where MEIS1 expression was either increased or prevented, mineral absorption is the principal dysregulated pathway. The mineral absorption pathway genes, HMOX1 and VDR are involved in iron metabolism and response to vitamin D, respectively. This shows a strong functional link to the known RLS pathways. We observed the same enrichment of the mineral absorption pathway in postmortem brain tissues of RLS patients showing a reduced expression of MEIS1. The expression of genes encoding metallothioneins (MTs) was observed to be dysregulated across the RNA-Seq datasets generated from both human cells and tissues. MTs are highly relevant to RLS as they bind intracellular metals, protect against oxidative stress and interact with ferritins which manage iron level in the central nervous system. Overall, our study suggests that in a subset of RLS patients, the contribution of MEIS1 appears to be associated to its downstream regulation of genes that are more directly involved in pathways that are relevant to RLS. While MTs have been implicated in the pathogenesis of neurodegenerative diseases such as Parkinson’s diseases, this is a first report to propose that they have a role in RLS.
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Affiliation(s)
- Faezeh Sarayloo
- McGill University, Department of Human Genetics, Montréal, QC, Canada.,McGill University, Montreal Neurological Institute, Montréal, QC, Canada
| | | | - Helene Catoire
- McGill University, Montreal Neurological Institute, Montréal, QC, Canada
| | - Daniel Rochefort
- McGill University, Montreal Neurological Institute, Montréal, QC, Canada
| | - Gabrielle Houle
- McGill University, Department of Human Genetics, Montréal, QC, Canada.,McGill University, Montreal Neurological Institute, Montréal, QC, Canada
| | - Jay P Ross
- McGill University, Department of Human Genetics, Montréal, QC, Canada.,McGill University, Montreal Neurological Institute, Montréal, QC, Canada
| | - Fulya Akçimen
- McGill University, Department of Human Genetics, Montréal, QC, Canada.,McGill University, Montreal Neurological Institute, Montréal, QC, Canada
| | | | - Gustavo Turecki
- McGill University, Department of Human Genetics, Montréal, QC, Canada.,McGill University, Department of Psychiatry, McGill Group for Suicide Studies, Douglas Institute, Montréal, QC, Canada
| | - Patrick A Dion
- McGill University, Montreal Neurological Institute, Montréal, QC, Canada.,McGill University, Department of Neurology and Neurosurgery, Montréal, QC, Canada
| | - Guy A Rouleau
- McGill University, Montreal Neurological Institute, Montréal, QC, Canada.,McGill University, Department of Neurology and Neurosurgery, Montréal, QC, Canada
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14
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Milnerowicz H, Wrześniak M, Królik M, Kowalska K. Influence of tobacco smoke on zinc, cadmium, iron, iron-binding proteins, and low-weight anti-oxidant status in pregnancy. Inhal Toxicol 2018; 30:534-541. [PMID: 30794012 DOI: 10.1080/08958378.2019.1576805] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2018] [Revised: 12/30/2018] [Accepted: 01/28/2019] [Indexed: 10/27/2022]
Abstract
Pregnancy and tobacco smoking (TS) each can cause increases in reactive oxygen species (ROS) production; this, in turn, can lead to disorders in iron management and disruption of the pro- and anti-oxidant balance. The aim of the study was to analyze the influence of TS and Cd on Fe, Zn, and anti-oxidant levels (i.e. glutathione [GSH], metallothionein [MT]) in the blood of pregnant women. The study reported here evaluated 110 blood samples from pregnant women in their 1st, 2nd and 3rd trimester. Concentrations of ferritin and transferrin were measured in the serum; Zn, Fe and cotinine in the plasma, that of Cd in whole blood, that for glutathione in red blood cell lysates, and levels of metallothionein both in the plasma and in lysates prepared from isolated erythrocytes. The results indicated there was a decrease in Zn and increase in Cd and metallothionein levels in pregnant women smokers as compared to in nonsmoking counterparts. Differences in intracellular MT concentration were noted both in smoking and nonsmoking women during pregnancy while there were no changes in extracellular MT level. A decline in circulating ferritin and a rise in transferrin during pregnancy was observed in all groups. Based on the results, it was concluded that exposure to TS-associated xenobiotics like Cd could result in higher MT levels in erythrocytes and in pregnant smokers, the major anti-oxidant mechanism that is in place is one being mediated by MT and not by reduced GSH.
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Affiliation(s)
- Halina Milnerowicz
- a Department of Biomedical and Environmental Analysis, Faculty of Pharmacy , Wroclaw Medical University , Wrocław , Poland
| | - Marta Wrześniak
- a Department of Biomedical and Environmental Analysis, Faculty of Pharmacy , Wroclaw Medical University , Wrocław , Poland
- b Department and Clinic of Internal Medicine and Allergology, Faculty of Medicine , Wroclaw Medical University , Wrocław , Poland
| | - Małgorzata Królik
- c Early Pregnancy Pathology Clinic , Centre of Gynecology, Obstetrics and Neonatology , Opole , Poland
| | - Katarzyna Kowalska
- a Department of Biomedical and Environmental Analysis, Faculty of Pharmacy , Wroclaw Medical University , Wrocław , Poland
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15
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Sánchez M, Palacios Ò, Buchensky C, Sabio L, Gomez-Casati DF, Pagani MA, Capdevila M, Atrian S, Dominguez-Vera JM. Copper redox chemistry of plant frataxins. J Inorg Biochem 2018; 180:135-140. [PMID: 29277024 DOI: 10.1016/j.jinorgbio.2017.11.020] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2017] [Revised: 11/22/2017] [Accepted: 11/24/2017] [Indexed: 01/15/2023]
Abstract
The presence of a conserved cysteine residue in the C-terminal amino acid sequences of plant frataxins differentiates these frataxins from those of other kingdoms and may be key in frataxin assembly and function. We report a full study on the ability of Arabidopsis (AtFH) and Zea mays (ZmFH-1 and ZmFH-2) frataxins to assemble into disulfide-bridged dimers by copper-driven oxidation and to revert to monomers by chemical reduction. We monitored the redox assembly-disassembly process by electrospray ionization mass spectrometry, electrophoresis, UV-Vis spectroscopy, and fluorescence measurements. We conclude that plant frataxins AtFH, ZmFH-1 and ZmFH-2 are oxidized by Cu2+ and exhibit redox cysteine monomer - cystine dimer interexchange. Interestingly, the tendency to interconvert is not the same for each protein. Through yeast phenotypic rescue experiments, we show that plant frataxins are important for plant survival under conditions of excess copper, indicating that these proteins might be involved in copper metabolism.
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Affiliation(s)
- Manu Sánchez
- Departamento de Química Inorgánica, Facultad de Ciencias, Instituto de Biotecnología, Universidad de Granada, 18071 Granada, Spain
| | - Òscar Palacios
- Departament de Química, Facultat de Ciències, Universitat Autònoma de Barcelona, 08193 Cerdanyola del Vallès, Barcelona, Spain
| | - Celeste Buchensky
- Centro de Estudios Fotosintéticos y Bioquímicos, Universidad Nacional de Rosario, CONICET, 2000 Rosario, Argentina
| | - Laura Sabio
- Departamento de Química Inorgánica, Facultad de Ciencias, Instituto de Biotecnología, Universidad de Granada, 18071 Granada, Spain
| | - Diego Fabian Gomez-Casati
- Centro de Estudios Fotosintéticos y Bioquímicos, Universidad Nacional de Rosario, CONICET, 2000 Rosario, Argentina
| | - Maria Ayelen Pagani
- Centro de Estudios Fotosintéticos y Bioquímicos, Universidad Nacional de Rosario, CONICET, 2000 Rosario, Argentina
| | - Mercè Capdevila
- Departament de Química, Facultat de Ciències, Universitat Autònoma de Barcelona, 08193 Cerdanyola del Vallès, Barcelona, Spain.
| | - Silvia Atrian
- Departament de Genètica, Facultat de Biologia, Universitat de Barcelona, Av. Diagonal 643, 08028 Barcelona, Spain
| | - Jose M Dominguez-Vera
- Departamento de Química Inorgánica, Facultad de Ciencias, Instituto de Biotecnología, Universidad de Granada, 18071 Granada, Spain.
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16
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Ziller A, Fraissinet-Tachet L. Metallothionein diversity and distribution in the tree of life: a multifunctional protein. Metallomics 2018; 10:1549-1559. [DOI: 10.1039/c8mt00165k] [Citation(s) in RCA: 71] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Metallothioneins are diverse, but not represented yet in all phyla. Moreover, they play a central role as a [MT:T:TO] protein system.
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Affiliation(s)
- Antoine Ziller
- Microbial Ecology
- CNRS UMR 5557
- UMR INRA 1418
- Université Lyon1
- Université de Lyon
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17
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de Francisco P, Martín-González A, Turkewitz AP, Gutiérrez JC. Extreme metal adapted, knockout and knockdown strains reveal a coordinated gene expression among different Tetrahymena thermophila metallothionein isoforms. PLoS One 2017; 12:e0189076. [PMID: 29206858 PMCID: PMC5716537 DOI: 10.1371/journal.pone.0189076] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2017] [Accepted: 11/17/2017] [Indexed: 01/01/2023] Open
Abstract
Metallothioneins (MT) constitute a superfamily of small cytosolic proteins that are able to bind metal cations through numerous cysteine (Cys) residues. Like other organisms the ciliate Tetrahymena thermophila presents several MT isoforms, which have been classified into two subfamilies (Cd- and Cu-metallothioneins). The main aim of this study was to examine the specific functions and transcriptional regulation of the five MT isoforms present in T. thermophila, by using several strains of this ciliate. After a laboratory evolution experiment over more than two years, three different T. thermophila strains adapted to extreme metal stress (Cd2+, Cu2+ or Pb2+) were obtained. In addition, three knockout and/or knockdown strains for different metallothionein (MT) genes were generated. These strains were then analyzed for expression of the individual MT isoforms. Our results provide a strong basis for assigning differential roles to the set of MT isoforms. MTT1 appears to have a key role in adaptation to Cd. In contrast, MTT2/4 are crucial for Cu-adaptation and MTT5 appears to be important for Pb-adaptation and might be considered as an “alarm” MT gene for responding to metal stress. Moreover, results indicate that likely a coordinated transcriptional regulation exists between the MT genes, particularly among MTT1, MTT5 and MTT2/4. MTT5 appears to be an essential gene, a first such report in any organism of an essential MT gene.
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Affiliation(s)
- Patricia de Francisco
- Departamento de Microbiología-III, Facultad de Biología, Universidad Complutense de Madrid (UCM), Madrid, Spain
| | - Ana Martín-González
- Departamento de Microbiología-III, Facultad de Biología, Universidad Complutense de Madrid (UCM), Madrid, Spain
| | - Aaron P. Turkewitz
- Department of Molecular Genetics and Cell Biology, Cummings Life Sciences Center, University of Chicago, Chicago, Illinois, United States of America
| | - Juan Carlos Gutiérrez
- Departamento de Microbiología-III, Facultad de Biología, Universidad Complutense de Madrid (UCM), Madrid, Spain
- * E-mail:
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18
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Zhuo Z, Fang S, Hu Q, Huang D, Feng J. Digital gene expression profiling analysis of duodenum transcriptomes in SD rats administered ferrous sulfate or ferrous glycine chelate by gavage. Sci Rep 2016; 6:37923. [PMID: 27901057 PMCID: PMC5128800 DOI: 10.1038/srep37923] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2016] [Accepted: 11/02/2016] [Indexed: 12/31/2022] Open
Abstract
The absorption of different iron sources is a trending research topic. Many studies have revealed that organic iron exhibits better bioavailability than inorganic iron, but the concrete underlying mechanism is still unclear. In the present study, we examined the differences in bioavailability of ferrous sulfate and ferrous glycinate in the intestines of SD rats using Illumina sequencing technology. Digital gene expression analysis resulted in the generation of almost 128 million clean reads, with expression data for 17,089 unigenes. A total of 123 differentially expressed genes with a |log2(fold change)| >1 and q-value < 0.05 were identified between the FeSO4 and Fe-Gly groups. Gene Ontology functional analysis revealed that these genes were involved in oxidoreductase activity, iron ion binding, and heme binding. Kyoto Encyclopedia of Genes and Genomes pathway analysis also showed relevant important pathways. In addition, the expression patterns of 9 randomly selected genes were further validated by qRT-PCR, which confirmed the digital gene expression results. Our study showed that the two iron sources might share the same absorption mechanism, and that differences in bioavailability between FeSO4 and Fe-Gly were not only in the absorption process but also during the transport and utilization process.
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Affiliation(s)
- Zhao Zhuo
- Key Laboratory of Molecular Animal Nutrition, Ministry of Education, College of Animal Science, Zhejiang University, Hangzhou, 310058, P. R. China
| | - Shenglin Fang
- Key Laboratory of Molecular Animal Nutrition, Ministry of Education, College of Animal Science, Zhejiang University, Hangzhou, 310058, P. R. China
| | - Qiaoling Hu
- Key Laboratory of Molecular Animal Nutrition, Ministry of Education, College of Animal Science, Zhejiang University, Hangzhou, 310058, P. R. China
| | - Danping Huang
- Key Laboratory of Molecular Animal Nutrition, Ministry of Education, College of Animal Science, Zhejiang University, Hangzhou, 310058, P. R. China
| | - Jie Feng
- Key Laboratory of Molecular Animal Nutrition, Ministry of Education, College of Animal Science, Zhejiang University, Hangzhou, 310058, P. R. China
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19
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Adam P, Křížková S, Heger Z, Babula P, Pekařík V, Vaculovičoá M, Gomes CM, Kizek R, Adam V. Metallothioneins in Prion- and Amyloid-Related Diseases. J Alzheimers Dis 2016; 51:637-56. [DOI: 10.3233/jad-150984] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Pavlína Adam
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska 1, Brno, Czech Republic
- Central European Institute of Technology, Brno University of Technology, Technicka, Brno, Czech Republic
| | - Soňa Křížková
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska 1, Brno, Czech Republic
- Central European Institute of Technology, Brno University of Technology, Technicka, Brno, Czech Republic
| | - Zbyněk Heger
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska 1, Brno, Czech Republic
- Central European Institute of Technology, Brno University of Technology, Technicka, Brno, Czech Republic
| | - Petr Babula
- Department of Physiology, Faculty of Medicine, Masaryk University, Kamenice, Brno, Czech Republic
| | - Vladimír Pekařík
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska 1, Brno, Czech Republic
- Central European Institute of Technology, Brno University of Technology, Technicka, Brno, Czech Republic
| | - Markéta Vaculovičoá
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska 1, Brno, Czech Republic
- Central European Institute of Technology, Brno University of Technology, Technicka, Brno, Czech Republic
| | - Cláudio M. Gomes
- Faculdade de Ciências Universidade de Lisboa, Biosystems and Integrative Sciences Institute and Department of Chemistry and Biochemistry, Universidade de Lisboa, Campo Grande, Lisboa, Portugal
| | - René Kizek
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska 1, Brno, Czech Republic
- Central European Institute of Technology, Brno University of Technology, Technicka, Brno, Czech Republic
| | - Vojtěch Adam
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska 1, Brno, Czech Republic
- Central European Institute of Technology, Brno University of Technology, Technicka, Brno, Czech Republic
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20
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Kepinska M, Szyller J, Milnerowicz H. The influence of oxidative stress induced by iron on telomere length. ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2015; 40:931-935. [PMID: 26513689 DOI: 10.1016/j.etap.2015.10.002] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/17/2015] [Revised: 10/07/2015] [Accepted: 10/10/2015] [Indexed: 06/05/2023]
Abstract
Oxidative stress can be induced by increased concentrations of iron in the body and consequently can cause shortening of telomeres. Telomeres, called mitotic clocks, are non-coding fragments at the end of chromosomes. During the replication of genetic material they are shortened, playing the role of ageing biomarkers in eukaryotes. In human endothelial cells, oxidative stress causes a decrease in telomerase activity. Shortening of chromosomes in telomeric parts was found in patients with primary hemochromatosis and in patients taking supplements containing iron. Increased level of transferrin saturation is associated with the presence of shorter telomeres in the chromosomes of leukocytes. The relationship between iron status and telomere length is still not fully understood.
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Affiliation(s)
- Marta Kepinska
- Department of Biomedical and Environmental Analysis, Faculty of Pharmacy, Wroclaw Medical University, Borowska 211, 50-556 Wrocław, Poland.
| | - Jakub Szyller
- Students Scientific Society at the Department of Biomedical Environmental Analysis, Faculty of Pharmacy, Wroclaw Medical University, Borowska 211, 50-556 Wrocław, Poland
| | - Halina Milnerowicz
- Department of Biomedical and Environmental Analysis, Faculty of Pharmacy, Wroclaw Medical University, Borowska 211, 50-556 Wrocław, Poland
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21
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Carmona F, Mendoza D, Kord S, Asperti M, Arosio P, Atrian S, Capdevila M, Dominguez-Vera JM. Chemically and Biologically Harmless versus Harmful Ferritin/Copper-Metallothionein Couples. Chemistry 2014; 21:808-13. [DOI: 10.1002/chem.201404660] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2014] [Indexed: 11/12/2022]
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22
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Zalewska M, Trefon J, Milnerowicz H. The role of metallothionein interactions with other proteins. Proteomics 2014; 14:1343-56. [DOI: 10.1002/pmic.201300496] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2013] [Revised: 02/20/2014] [Accepted: 03/06/2014] [Indexed: 12/24/2022]
Affiliation(s)
- Marta Zalewska
- Department of Biomedical and Environmental Analysis; Faculty of Pharmacy; Wroclaw Medical University; Wroclaw Poland
| | - Jagoda Trefon
- Students Scientific Association; Department of Biomedical and Environmental Analysis; Faculty of Pharmacy; Wroclaw Medical University; Wroclaw Poland
| | - Halina Milnerowicz
- Department of Biomedical and Environmental Analysis; Faculty of Pharmacy; Wroclaw Medical University; Wroclaw Poland
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23
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Carmona F, Palacios Ò, Gálvez N, Cuesta R, Atrian S, Capdevila M, Domínguez-Vera JM. Ferritin iron uptake and release in the presence of metals and metalloproteins: Chemical implications in the brain. Coord Chem Rev 2013. [DOI: 10.1016/j.ccr.2013.03.034] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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