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Zhao P, Shi W, Ye Y, Xu K, Hu J, Chao H, Tao Z, Xu L, Gu W, Zhang L, Wang T, Wang X, Ji J. Atox1 protects hippocampal neurons after traumatic brain injury via DJ-1 mediated anti-oxidative stress and mitophagy. Redox Biol 2024; 72:103156. [PMID: 38640584 PMCID: PMC11047792 DOI: 10.1016/j.redox.2024.103156] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2023] [Revised: 04/06/2024] [Accepted: 04/10/2024] [Indexed: 04/21/2024] Open
Abstract
Regulation of the oxidative stress response is crucial for the management and prognosis of traumatic brain injury (TBI). The copper chaperone Antioxidant 1 (Atox1) plays a crucial role in regulating intracellular copper ion balance and impacting the antioxidant capacity of mitochondria, as well as the oxidative stress state of cells. However, it remains unknown whether Atox1 is involved in modulating oxidative stress following TBI. Here, we investigated the regulatory role of Atox1 in oxidative stress on neurons both in vivo and in vitro, and elucidated the underlying mechanism through culturing hippocampal HT-22 cells with Atox1 mutation. The expression of Atox1 was significantly diminished following TBI, while mice with overexpressed Atox1 exhibited a more preserved hippocampal structure and reduced levels of oxidative stress post-TBI. Furthermore, the mice displayed notable impairments in learning and memory functions after TBI, which were ameliorated by the overexpression of Atox1. In the stretch injury model of HT-22 cells, overexpression of Atox1 mitigated oxidative stress by preserving the normal morphology and network connectivity of mitochondria, as well as facilitating the elimination of damaged mitochondria. Mechanistically, co-immunoprecipitation and mass spectrometry revealed the binding of Atox1 to DJ-1. Knockdown of DJ-1 in HT-22 cells significantly impaired the antioxidant capacity of Atox1. Mutations in the copper-binding motif or sequestration of free copper led to a substantial decrease in the interaction between Atox1 and DJ-1, with overexpression of DJ-1 failing to restore the antioxidant capacity of Atox1 mutants. The findings suggest that DJ-1 mediates the ability of Atox1 to withstand oxidative stress. And targeting Atox1 could be a potential therapeutic approach for addressing post-traumatic neurological dysfunction.
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Affiliation(s)
- Pengzhan Zhao
- Department of Neurosurgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Wenqian Shi
- Department of Neurosurgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Yangfan Ye
- Department of Neurosurgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Ke Xu
- Department of Neurosurgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Jingming Hu
- Department of Neurosurgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Honglu Chao
- Department of Neurosurgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - ZeQiang Tao
- Department of Neurosurgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Lei Xu
- Department of Neurosurgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Wei Gu
- Department of Neurosurgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Liuchao Zhang
- Department of Neurosurgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Tian Wang
- Department of Neurosurgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Xinyue Wang
- Department of Neurosurgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Jing Ji
- Department of Neurosurgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China; Gusu School, Nanjing Medical University, Suzhou, China; Department of Neurosurgery, The Affiliated Kizilsu Kirghiz Autonomous Prefecture People's Hospital of Nanjing Medical University, Artux, Xinjiang, China.
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Sandrelli F, Bisaglia M. Molecular and Physiological Determinants of Amyotrophic Lateral Sclerosis: What the DJ-1 Protein Teaches Us. Int J Mol Sci 2023; 24:ijms24087674. [PMID: 37108835 PMCID: PMC10144135 DOI: 10.3390/ijms24087674] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2023] [Revised: 04/12/2023] [Accepted: 04/19/2023] [Indexed: 04/29/2023] Open
Abstract
Amyotrophic lateral sclerosis (ALS) is an adult-onset disease which causes the progressive degeneration of cortical and spinal motoneurons, leading to death a few years after the first symptom onset. ALS is mainly a sporadic disorder, and its causative mechanisms are mostly unclear. About 5-10% of cases have a genetic inheritance, and the study of ALS-associated genes has been fundamental in defining the pathological pathways likely also involved in the sporadic forms of the disease. Mutations affecting the DJ-1 gene appear to explain a subset of familial ALS forms. DJ-1 is involved in multiple molecular mechanisms, acting primarily as a protective agent against oxidative stress. Here, we focus on the involvement of DJ-1 in interconnected cellular functions related to mitochondrial homeostasis, reactive oxygen species (ROS) levels, energy metabolism, and hypoxia response, in both physiological and pathological conditions. We discuss the possibility that impairments in one of these pathways may affect the others, contributing to a pathological background in which additional environmental or genetic factors may act in favor of the onset and/or progression of ALS. These pathways may represent potential therapeutic targets to reduce the likelihood of developing ALS and/or slow disease progression.
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Affiliation(s)
| | - Marco Bisaglia
- Department of Biology, University of Padova, 35131 Padova, Italy
- Study Center for Neurodegeneration (CESNE), 35100 Padova, Italy
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3
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Persulfidation of DJ-1: Mechanism and Consequences. Biomolecules 2022; 13:biom13010027. [PMID: 36671412 PMCID: PMC9856005 DOI: 10.3390/biom13010027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2022] [Revised: 12/12/2022] [Accepted: 12/20/2022] [Indexed: 12/24/2022] Open
Abstract
DJ-1 (also called PARK7) is a ubiquitously expressed protein involved in the etiology of Parkinson disease and cancers. At least one of its three cysteine residues is functionally essential, and its oxidation state determines the specific function of the enzyme. DJ-1 was recently reported to be persulfidated in mammalian cell lines, but the implications of this post-translational modification have not yet been analyzed. Here, we report that recombinant DJ-1 is reversibly persulfidated at cysteine 106 by reaction with various sulfane donors and subsequently inhibited. Strikingly, this reaction is orders of magnitude faster than C106 oxidation by H2O2, and persulfidated DJ-1 behaves differently than sulfinylated DJ-1. Both these PTMs most likely play a dedicated role in DJ-1 signaling or protective pathways.
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4
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De Lazzari F, Agostini F, Doni D, Malacrida S, Zordan MA, Costantini P, Bubacco L, Sandrelli F, Bisaglia M. DJ-1 and SOD1 Act Independently in the Protection against Anoxia in Drosophila melanogaster. Antioxidants (Basel) 2022; 11:antiox11081527. [PMID: 36009245 PMCID: PMC9405364 DOI: 10.3390/antiox11081527] [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: 07/13/2022] [Revised: 08/01/2022] [Accepted: 08/04/2022] [Indexed: 12/01/2022] Open
Abstract
Redox homeostasis is a vital process the maintenance of which is assured by the presence of numerous antioxidant small molecules and enzymes and the alteration of which is involved in many pathologies, including several neurodegenerative disorders. Among the different enzymes involved in the antioxidant response, SOD1 and DJ-1 have both been associated with the pathogenesis of amyotrophic lateral sclerosis and Parkinson’s disease, suggesting a possible interplay in their mechanism of action. Copper deficiency in the SOD1-active site has been proposed as a central determinant in SOD1-related neurodegeneration. SOD1 maturation mainly relies on the presence of the protein copper chaperone for SOD1 (CCS), but a CCS-independent alternative pathway also exists and functions under anaerobic conditions. To explore the possible involvement of DJ-1 in such a pathway in vivo, we exposed Drosophila melanogaster to anoxia and evaluated the effect of DJ-1 on fly survival and SOD1 levels, in the presence or absence of CCS. Loss of DJ-1 negatively affects the fly response to the anoxic treatment, but our data indicate that the protective activity of DJ-1 is independent of SOD1 in Drosophila, indicating that the two proteins may act in different pathways.
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Affiliation(s)
- Federica De Lazzari
- Department of Biology, University of Padova, Via Ugo Bassi 58/B, 35131 Padova, Italy
- Medical Research Council, Mitochondria Biology Unit, University of Cambridge, Cambridge Biomedical Campus, Cambridge CB2 0XY, UK
| | - Francesco Agostini
- Department of Biology, University of Padova, Via Ugo Bassi 58/B, 35131 Padova, Italy
| | - Davide Doni
- Department of Biology, University of Padova, Via Ugo Bassi 58/B, 35131 Padova, Italy
| | - Sandro Malacrida
- Institute of Mountain Emergency Medicine, Eurac Research, 39100 Bolzano, Italy
| | - Mauro A. Zordan
- Department of Biology, University of Padova, Via Ugo Bassi 58/B, 35131 Padova, Italy
| | - Paola Costantini
- Department of Biology, University of Padova, Via Ugo Bassi 58/B, 35131 Padova, Italy
| | - Luigi Bubacco
- Department of Biology, University of Padova, Via Ugo Bassi 58/B, 35131 Padova, Italy
- Study Center for Neurodegeneration (CESNE), 35100 Padova, Italy
| | - Federica Sandrelli
- Department of Biology, University of Padova, Via Ugo Bassi 58/B, 35131 Padova, Italy
- Correspondence: (F.S.); (M.B.)
| | - Marco Bisaglia
- Department of Biology, University of Padova, Via Ugo Bassi 58/B, 35131 Padova, Italy
- Study Center for Neurodegeneration (CESNE), 35100 Padova, Italy
- Correspondence: (F.S.); (M.B.)
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5
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Godoy-Gallardo M, Eckhard U, Delgado LM, de Roo Puente YJ, Hoyos-Nogués M, Gil FJ, Perez RA. Antibacterial approaches in tissue engineering using metal ions and nanoparticles: From mechanisms to applications. Bioact Mater 2021; 6:4470-4490. [PMID: 34027235 PMCID: PMC8131399 DOI: 10.1016/j.bioactmat.2021.04.033] [Citation(s) in RCA: 181] [Impact Index Per Article: 60.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2021] [Revised: 04/02/2021] [Accepted: 04/20/2021] [Indexed: 02/07/2023] Open
Abstract
Bacterial infection of implanted scaffolds may have fatal consequences and, in combination with the emergence of multidrug bacterial resistance, the development of advanced antibacterial biomaterials and constructs is of great interest. Since decades ago, metals and their ions had been used to minimize bacterial infection risk and, more recently, metal-based nanomaterials, with improved antimicrobial properties, have been advocated as a novel and tunable alternative. A comprehensive review is provided on how metal ions and ion nanoparticles have the potential to decrease or eliminate unwanted bacteria. Antibacterial mechanisms such as oxidative stress induction, ion release and disruption of biomolecules are currently well accepted. However, the exact antimicrobial mechanisms of the discussed metal compounds remain poorly understood. The combination of different metal ions and surface decorations of nanoparticles will lead to synergistic effects and improved microbial killing, and allow to mitigate potential side effects to the host. Starting with a general overview of antibacterial mechanisms, we subsequently focus on specific metal ions such as silver, zinc, copper, iron and gold, and outline their distinct modes of action. Finally, we discuss the use of these metal ions and nanoparticles in tissue engineering to prevent implant failure.
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Affiliation(s)
- Maria Godoy-Gallardo
- Bioengineering Institute of Technology, Universitat Internacional de Catalunya, Carrer de Josep Trueta, 08195, del Vallès, Sant Cugat, Barcelona, Spain
| | - Ulrich Eckhard
- Proteolysis Lab, Department of Structural Biology, Molecular Biology Institute of Barcelona, CSIC, Barcelona Science Park, Baldiri Reixac 15-21, 08028, Barcelona, Spain
| | - Luis M. Delgado
- Bioengineering Institute of Technology, Universitat Internacional de Catalunya, Carrer de Josep Trueta, 08195, del Vallès, Sant Cugat, Barcelona, Spain
| | - Yolanda J.D. de Roo Puente
- Bioengineering Institute of Technology, Universitat Internacional de Catalunya, Carrer de Josep Trueta, 08195, del Vallès, Sant Cugat, Barcelona, Spain
| | - Mireia Hoyos-Nogués
- Bioengineering Institute of Technology, Universitat Internacional de Catalunya, Carrer de Josep Trueta, 08195, del Vallès, Sant Cugat, Barcelona, Spain
| | - F. Javier Gil
- Bioengineering Institute of Technology, Universitat Internacional de Catalunya, Carrer de Josep Trueta, 08195, del Vallès, Sant Cugat, Barcelona, Spain
| | - Roman A. Perez
- Bioengineering Institute of Technology, Universitat Internacional de Catalunya, Carrer de Josep Trueta, 08195, del Vallès, Sant Cugat, Barcelona, Spain
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6
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Chen CH, Chou YT, Yang YW, Lo KY. High-dose copper activates p53-independent apoptosis through the induction of nucleolar stress in human cell lines. Apoptosis 2021; 26:612-627. [PMID: 34708319 DOI: 10.1007/s10495-021-01692-y] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/03/2021] [Indexed: 12/17/2022]
Abstract
Copper is an essential micronutrient involved in many redox reactions in human cells. However, a high concentration of copper, intake from the environment or abnormal accumulation within cells because of genetic mutation, leads to cell toxicity. This is attributable to oxidative damage, altered gene expression, and functional impairment of the mitochondria. Copper stress also alters the morphology of the nucleolus, but the process has not been fully elucidated. In this study, cells were treated with copper sulfate at 3-9 ppm and examined if a high dose of copper would block ribosome biogenesis. With the incorrect distribution of nucleolar proteins nucleophosmin and fibrillarin to the nucleoplasm, ribosomal RNA (rRNA) processing was impaired; 34S rRNA from an abnormal A2 cut increased, and downstream pre-rRNAs decreased. The under-accumulation of 60S subunits was detected using sucrose gradients. From transcriptome analysis, ribosome synthesis-related genes were misregulated. Blockage in ribosome synthesis under copper-treatment induced nucleolar stress and triggered p53-independent apoptosis pathways. Thus, nucleolar stress is one cause of cell death under copper exposure.
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Affiliation(s)
- Chieh-Hsin Chen
- Department of Agricultural Chemistry, National Taiwan University, 1 Sec. 4, Roosevelt Road, Taipei, 10617, Taiwan
| | - Yi-Ting Chou
- Department of Agricultural Chemistry, National Taiwan University, 1 Sec. 4, Roosevelt Road, Taipei, 10617, Taiwan
| | - Ya-Wen Yang
- Department of Surgery, National Taiwan University Hospital, Taipei, Taiwan
| | - Kai-Yin Lo
- Department of Agricultural Chemistry, National Taiwan University, 1 Sec. 4, Roosevelt Road, Taipei, 10617, Taiwan.
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7
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Li L, Peng L, Zhu J, Wu J, Zhao Y. [DJ-1 alleviates oxidative stress injury by activating the Nrf2 pathway in rats with cerebral ischemia-reperfusion injury]. NAN FANG YI KE DA XUE XUE BAO = JOURNAL OF SOUTHERN MEDICAL UNIVERSITY 2021; 41:679-686. [PMID: 34134954 DOI: 10.12122/j.issn.1673-4254.2021.05.07] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
OBJECTIVE To investigate the antioxidant effect of DJ-1 (Park7) in rats with cerebral ischemia/reperfusion (IR) injury and its potential mechanism. OBJECTIVE A total of 108 SD rats were randomly divided into sham-operated group, middle cerebral artery occlusion (MCAO) group, Scramble group, DJ-1 siRNA group, negative control (NC) group and DJ-1 overexpression group. Except for those in the sham group, all the rats were subjected to MCAO to establish models of cerebral IR injury. In DJ-1 siRNA and DJ-1 overexpression group, a DJ-1 siRNA and an adeno-associated virus vector carrying DJ-1 gene was injected into the lateral ventricle of the rats, respectively. In each group, neurological scores and brain water content were determined after the operation, and pathological changes of the brain tissue and neuronal injury in the cortical infarction area were assessed using HE and Nissl staining. Oxidative stress in the brain tissues was analyzed by detecting superoxide dismutase (SOD) and malondialdehyde (MDA). The expression levels of DJ-1, Nrf2, Ho-1 and NQO1 in the brain tissue were detected with Western blotting, and the expression and nucleation of Nrf2 was determined by immunofluorescence staining. OBJECTIVE Compared with those in MCAO group, the neurological scores (P < 0.001) and brain water content (P < 0.001) were significantly increased in DJ-1 siRNA group. Intracerebral injection of DJ-1 siRNA following MCAO obviously aggravated neuron injury in cerebral ischemia region, further reduced SOD activity and increased MDA content (P < 0.001), and significantly lowered the expression levels of Nrf2 and its downstream proteins HO-1 and NQO1 (P < 0.001). Intracerebral injection of the adenoviral vector for DJ-1 (P=0.003) overexpression significantly upregulated the levels of Nrf2 (P=0.006) and its downstream proteins HO-1 (P=0.004) and NQO1 (P=0.014). OBJECTIVE As an important neuroprotective factor, DJ-1 alleviates oxidative stress induced by cerebral IR injury in rats by activating the Nrf2 pathway.
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Affiliation(s)
- L Li
- Department of Pathology//Key Laboratory of Neurobiology, College of Basic Medical Sciences, Chongqing Medical University, Chongqing 400016, China
| | - L Peng
- Institute of Neuroscience//Key Laboratory of Neurobiology, College of Basic Medical Sciences, Chongqing Medical University, Chongqing 400016, China
| | - J Zhu
- Institute of Neuroscience//Key Laboratory of Neurobiology, College of Basic Medical Sciences, Chongqing Medical University, Chongqing 400016, China
| | - J Wu
- Institute of Neuroscience//Key Laboratory of Neurobiology, College of Basic Medical Sciences, Chongqing Medical University, Chongqing 400016, China
| | - Y Zhao
- Institute of Neuroscience//Key Laboratory of Neurobiology, College of Basic Medical Sciences, Chongqing Medical University, Chongqing 400016, China
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8
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9
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Barbieri L, Luchinat E, Banci L. Intracellular metal binding and redox behavior of human DJ-1. J Biol Inorg Chem 2017; 23:61-69. [DOI: 10.1007/s00775-017-1509-5] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2017] [Accepted: 10/18/2017] [Indexed: 12/21/2022]
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10
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Biosa A, Sandrelli F, Beltramini M, Greggio E, Bubacco L, Bisaglia M. Recent findings on the physiological function of DJ-1: Beyond Parkinson's disease. Neurobiol Dis 2017; 108:65-72. [PMID: 28823929 DOI: 10.1016/j.nbd.2017.08.005] [Citation(s) in RCA: 64] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2017] [Revised: 07/26/2017] [Accepted: 08/16/2017] [Indexed: 01/16/2023] Open
Abstract
Several mutations in the gene coding for DJ-1 have been associated with early onset forms of parkinsonism. In spite of the massive effort spent by the scientific community in understanding the physiological role of DJ-1, a consensus on what DJ-1 actually does within the cells has not been reached, with several diverse functions proposed. At present, the most accepted function for DJ-1 is a neuronal protective role against oxidative stress. However, how exactly this function is exerted by DJ-1 is not clear. In recent years, novel molecular mechanisms have been suggested that may account for the antioxidant properties of DJ-1. In this review, we critically analyse the experimental evidence, including some very recent findings, supporting the purported neuroprotective role of DJ-1 through different mechanisms linked to oxidative stress handling, as well as the relevance of these processes in the context of Parkinson's disease.
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Affiliation(s)
- Alice Biosa
- Molecular Physiology and Biophysics Unit, Department of Biology, University of Padova, 35131 Padova, Italy
| | - Federica Sandrelli
- Neurogenetics and Chronobiology Unit, Department of Biology, University of Padova, 35131 Padova, Italy
| | - Mariano Beltramini
- Molecular Physiology and Biophysics Unit, Department of Biology, University of Padova, 35131 Padova, Italy
| | - Elisa Greggio
- Molecular Physiology and Biophysics Unit, Department of Biology, University of Padova, 35131 Padova, Italy
| | - Luigi Bubacco
- Molecular Physiology and Biophysics Unit, Department of Biology, University of Padova, 35131 Padova, Italy
| | - Marco Bisaglia
- Molecular Physiology and Biophysics Unit, Department of Biology, University of Padova, 35131 Padova, Italy.
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Anaerobic Copper Toxicity and Iron-Sulfur Cluster Biogenesis in Escherichia coli. Appl Environ Microbiol 2017; 83:AEM.00867-17. [PMID: 28576762 DOI: 10.1128/aem.00867-17] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2017] [Accepted: 05/31/2017] [Indexed: 12/31/2022] Open
Abstract
While copper is an essential trace element in biology, pollution of groundwater from copper has become a threat to all living organisms. Cellular mechanisms underlying copper toxicity, however, are still not fully understood. Previous studies have shown that iron-sulfur proteins are among the primary targets of copper toxicity in Escherichia coli under aerobic conditions. Here, we report that, under anaerobic conditions, iron-sulfur proteins in E. coli cells are even more susceptible to copper in medium. Whereas addition of 0.2 mM copper(II) chloride to LB (Luria-Bertani) medium has very little or no effect on iron-sulfur proteins in wild-type E. coli cells under aerobic conditions, the same copper treatment largely inactivates iron-sulfur proteins by blocking iron-sulfur cluster biogenesis in the cells under anaerobic conditions. Importantly, proteins that do not have iron-sulfur clusters (e.g., fumarase C and cysteine desulfurase) in E. coli cells are not significantly affected by copper treatment under aerobic or anaerobic conditions, indicating that copper may specifically target iron-sulfur proteins in cells. Additional studies revealed that E. coli cells accumulate more intracellular copper under anaerobic conditions than under aerobic conditions and that the elevated copper content binds to the iron-sulfur cluster assembly proteins IscU and IscA, which effectively inhibits iron-sulfur cluster biogenesis. The results suggest that the copper-mediated inhibition of iron-sulfur proteins does not require oxygen and that iron-sulfur cluster biogenesis is the primary target of anaerobic copper toxicity in cells.IMPORTANCE Copper contamination in groundwater has become a threat to all living organisms. However, cellular mechanisms underlying copper toxicity have not been fully understood up to now. The work described here reveals that iron-sulfur proteins in Escherichia coli cells are much more susceptible to copper in medium under anaerobic conditions than they are under aerobic conditions. Under anaerobic conditions, E. coli cells accumulate excess intracellular copper, which specifically targets iron-sulfur proteins by blocking iron-sulfur cluster biogenesis. Since iron-sulfur proteins are involved in diverse and vital physiological processes, inhibition of iron-sulfur cluster biogenesis by copper disrupts multiple cellular functions and ultimately inhibits cell growth. The results from this study illustrate a new interplay between intracellular copper toxicity and iron-sulfur cluster biogenesis in bacterial cells under anaerobic conditions.
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12
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Srivastava S, Blower PJ, Aubdool AA, Hider RC, Mann GE, Siow RC. Cardioprotective effects of Cu (II)ATSM in human vascular smooth muscle cells and cardiomyocytes mediated by Nrf2 and DJ-1. Sci Rep 2016; 6:7. [PMID: 28442712 PMCID: PMC5431352 DOI: 10.1038/s41598-016-0012-5] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2016] [Accepted: 08/25/2016] [Indexed: 02/07/2023] Open
Abstract
Cu(II)ATSM was developed as a hypoxia sensitive positron emission tomography agent. Recent reports have highlighted the neuroprotective properties of Cu(II)ATSM, yet there are no reports that it confers cardioprotection. We demonstrate that Cu(II)ATSM activates the redox-sensitive transcription factor Nrf2 in human coronary artery smooth muscle cells (HCASMC) and cardiac myocytes (HCM), leading to upregulation of antioxidant defense enzymes. Oral delivery of Cu(II)ATSM in mice induced expression of the Nrf2-regulated enzymes in the heart and aorta. In HCASMC, Cu(II)ATSM increased expression of the Nrf2 stabilizer DJ-1, and knockdown of Nrf2 or DJ-1 attenuated Cu(II)ATSM-mediated heme oxygenase-1 and NADPH quinone oxidoreductase-1 induction. Pre-treatment of HCASMC with Cu(II)ATSM protected against the pro-oxidant effects of angiotensin II (Ang II) by attenuating superoxide generation, apoptosis, proliferation and increases in intracellular calcium. Notably, Cu(II)ATSM-mediated protection against Ang II-induced HCASMC apoptosis was diminished by Nrf2 knockdown. Acute treatment with Cu(II)ATSM enhanced the association of DJ-1 with superoxide dismutase-1 (SOD1), paralleled by significant increases in intracellular Cu(II) levels and SOD1 activity. We describe a novel mechanism by which Cu(II)ATSM induces Nrf2-regulated antioxidant enzymes and protects against Ang II-mediated HCASMC dysfunction via activation of the Nrf2/DJ-1 axis. Cu(II)ATSM may provide a therapeutic strategy for cardioprotection via upregulation of antioxidant defenses.
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MESH Headings
- Animals
- Humans
- Male
- Antioxidants/metabolism
- Apoptosis/drug effects
- Cardiotonic Agents/pharmacology
- Cell Proliferation/drug effects
- Coordination Complexes
- Coronary Vessels/cytology
- Mice, Inbred C57BL
- Muscle, Smooth, Vascular/cytology
- Muscle, Smooth, Vascular/drug effects
- Muscle, Smooth, Vascular/metabolism
- Myocytes, Cardiac/drug effects
- Myocytes, Cardiac/metabolism
- Myocytes, Smooth Muscle/drug effects
- Myocytes, Smooth Muscle/metabolism
- Organometallic Compounds/pharmacology
- Protein Deglycase DJ-1/metabolism
- Signal Transduction
- Thiosemicarbazones/pharmacology
- NF-E2-Related Factor 2/metabolism
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Affiliation(s)
- Salil Srivastava
- Cardiovascular Division, British Heart Foundation Centre of Research Excellence, Faculty of Life Sciences & Medicine, King's College London, 150 Stamford Street, London, SE1 9NH, UK
| | - Philip J Blower
- Imaging Sciences & Biomedical Engineering Division, British Heart Foundation Centre of Research Excellence, Faculty of Life Sciences & Medicine, King's College London, The Rayne Institute, St. Thomas' Hospital, London, SE1 7EH, UK
| | - Aisah A Aubdool
- Cardiovascular Division, British Heart Foundation Centre of Research Excellence, Faculty of Life Sciences & Medicine, King's College London, 150 Stamford Street, London, SE1 9NH, UK
| | - Robert C Hider
- Institute of Pharmaceutical Science, Faculty of Life Sciences & Medicine, King's College London, 150 Stamford Street, London, SE1 9NH, UK
| | | | - Richard C Siow
- Cardiovascular Division, British Heart Foundation Centre of Research Excellence, Faculty of Life Sciences & Medicine, King's College London, 150 Stamford Street, London, SE1 9NH, UK.
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13
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Coherent and Contradictory Facts, Feats and Fictions Associated with Metal Accumulation in Parkinson's Disease: Epicenter or Outcome, Yet a Demigod Question. Mol Neurobiol 2016; 54:4738-4755. [PMID: 27480264 DOI: 10.1007/s12035-016-0016-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2016] [Accepted: 07/12/2016] [Indexed: 01/30/2023]
Abstract
Unwarranted exposure due to liberal use of metals for maintaining the lavish life and to achieve the food demand for escalating population along with an incredible boost in the average human life span owing to orchestrated progress in rejuvenation therapy have gradually increased the occurrence of Parkinson's disease (PD). Etiology is albeit elusive; association of PD with metal accumulation has never been overlooked due to noteworthy similitude between metal-exposure symptoms and a few cardinal features of disease. Even though metals are entailed in the vital functions, a hysterical shift, primarily augmentation, escorts the stern nigrostriatal dopaminergic neurodegeneration. An increase in the passage of metals through the blood brain barrier and impaired metabolic activity and elimination system could lead to metal accumulation in the brain, which eventually makes dopaminergic neurons quite susceptible. In the present article, an update on implication of metal accumulation in PD/Parkinsonism has been provided. Moreover, encouraging and paradoxical facts and fictions associated with metal accumulation in PD/Parkinsonism have also been compiled. Systematic literature survey of PD is performed to describe updated information if metal accumulation is an epicenter or merely an outcome. Finally, a perspective on the association of metal accumulation with pesticide-induced Parkinsonism has been explained to unveil the likely impact of the former in the latter.
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Tamasi G, Bonechi C, Rossi C, Cini R, Magnani A. Simulating the active sites of copper-trafficking proteins. Density functional structural and spectroscopy studies on copper(I) complexes with thiols, carboxylato, amide and phenol ligands. J COORD CHEM 2016. [DOI: 10.1080/00958972.2015.1132416] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
- Gabriella Tamasi
- Department of Biotechnology, Chemistry, Pharmacy, University of Siena, Siena, Italy
| | - Claudia Bonechi
- Department of Biotechnology, Chemistry, Pharmacy, University of Siena, Siena, Italy
| | - Claudio Rossi
- Department of Biotechnology, Chemistry, Pharmacy, University of Siena, Siena, Italy
| | - Renzo Cini
- Department of Biotechnology, Chemistry, Pharmacy, University of Siena, Siena, Italy
| | - Agnese Magnani
- Department of Biotechnology, Chemistry, Pharmacy, University of Siena, Siena, Italy
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15
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Abdullah R, Basak I, Patil KS, Alves G, Larsen JP, Møller SG. Parkinson's disease and age: The obvious but largely unexplored link. Exp Gerontol 2015; 68:33-8. [DOI: 10.1016/j.exger.2014.09.014] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2014] [Revised: 09/22/2014] [Accepted: 09/23/2014] [Indexed: 11/25/2022]
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16
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Tan G, Cheng Z, Pang Y, Landry AP, Li J, Lu J, Ding H. Copper binding in IscA inhibits iron-sulphur cluster assembly in Escherichia coli. Mol Microbiol 2014; 93:629-44. [PMID: 24946160 DOI: 10.1111/mmi.12676] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/13/2014] [Indexed: 11/28/2022]
Abstract
Among the iron-sulphur cluster assembly proteins encoded by gene cluster iscSUA-hscBA-fdx in Escherichia coli, IscA has a unique and strong iron binding activity and can provide iron for iron-sulphur cluster assembly in proteins in vitro. Deletion of IscA and its paralogue SufA results in an E. coli mutant that fails to assemble [4Fe-4S] clusters in proteins under aerobic conditions, suggesting that IscA has a crucial role for iron-sulphur cluster biogenesis. Here we report that among the iron-sulphur cluster assembly proteins, IscA also has a strong and specific binding activity for Cu(I) in vivo and in vitro. The Cu(I) centre in IscA is stable and resistant to oxidation under aerobic conditions. Mutation of the conserved cysteine residues that are essential for the iron binding in IscA abolishes the copper binding activity, indicating that copper and iron may share the same binding site in the protein. Additional studies reveal that copper can compete with iron for the metal binding site in IscA and effectively inhibits the IscA-mediated [4Fe-4S] cluster assembly in E. coli cells. The results suggest that copper may not only attack the [4Fe-4S] clusters in dehydratases, but also block the [4Fe-4S] cluster assembly in proteins by targeting IscA in cells.
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Affiliation(s)
- Guoqiang Tan
- Laboratory of Molecular Medicine, School of Laboratory Medicine and Life Science, Wenzhou Medical University, Wenzhou, Zhejiang, 325035, China; Department of Biological Sciences, Louisiana State University, Baton Rouge, LA, 70803, USA
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17
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Tashiro S, Caaveiro JMM, Wu CX, Hoang QQ, Tsumoto K. Thermodynamic and Structural Characterization of the Specific Binding of Zn(II) to Human Protein DJ-1. Biochemistry 2014; 53:2218-20. [DOI: 10.1021/bi500294h] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Shinya Tashiro
- Department
of Medical Genome Sciences, Graduate School of Frontier Sciences, The University of Tokyo, Kashiwa 277-8562, Japan
| | - Jose M. M. Caaveiro
- Department
of Bioengineering, Graduate School of Engineering, The University of Tokyo, 7-3-1, Tokyo 113-8656, Japan
| | - Chun-Xiang Wu
- Department of Biochemistry
and Molecular Biology and Stark
Neurosciences Research Institute, Indiana University School of Medicine, Indianapolis, Indiana 46202, United States
| | - Quyen Q. Hoang
- Department of Biochemistry
and Molecular Biology and Stark
Neurosciences Research Institute, Indiana University School of Medicine, Indianapolis, Indiana 46202, United States
| | - Kouhei Tsumoto
- Department
of Medical Genome Sciences, Graduate School of Frontier Sciences, The University of Tokyo, Kashiwa 277-8562, Japan
- Department
of Bioengineering, Graduate School of Engineering, The University of Tokyo, 7-3-1, Tokyo 113-8656, Japan
- Medical
Proteomics Laboratory, Institute of Medical Science, The University of Tokyo, Tokyo 108-8639, Japan
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18
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Girotto S, Cendron L, Bisaglia M, Tessari I, Mammi S, Zanotti G, Bubacco L. DJ-1 is a copper chaperone acting on SOD1 activation. J Biol Chem 2014; 289:10887-10899. [PMID: 24567322 DOI: 10.1074/jbc.m113.535112] [Citation(s) in RCA: 65] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Lack of oxidative stress control is a common and often prime feature observed in many neurodegenerative diseases. Both DJ-1 and SOD1, proteins involved in familial Parkinson disease and amyotrophic lateral sclerosis, respectively, play a protective role against oxidative stress. Impaired activity and modified expression of both proteins have been observed in different neurodegenerative diseases. A potential cooperative action of DJ-1 and SOD1 in the same oxidative stress response pathway may be suggested based on a copper-mediated interaction between the two proteins reported here. To investigate the mechanisms underlying the antioxidative function of DJ-1 in relation to SOD1 activity, we investigated the ability of DJ-1 to bind copper ions. We structurally characterized a novel copper binding site involving Cys-106, and we investigated, using different techniques, the kinetics of DJ-1 binding to copper ions. The copper transfer between the two proteins was also examined using both fluorescence spectroscopy and specific biochemical assays for SOD1 activity. The structural and functional analysis of the novel DJ-1 copper binding site led us to identify a putative role for DJ-1 as a copper chaperone. Alteration of the coordination geometry of the copper ion in DJ-1 may be correlated to the physiological role of the protein, to a potential failure in metal transfer to SOD1, and to successive implications in neurodegenerative etiopathogenesis.
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Affiliation(s)
- Stefania Girotto
- Department of Chemical Sciences, University of Padova, via Marzolo, 1 35131 Padova, Italy; Department of Drug Discovery and Development, Istituto Italiano di Tecnologia, Via Morego, 30 16163 Genoa, Italy
| | - Laura Cendron
- Department of Biomedical Sciences, University of Padova, Via Ugo Bassi, 58b 35121 Padova, Italy; Department of Biology, University of Padova, Via Ugo Bassi, 58b 35121 Padova, Italy
| | - Marco Bisaglia
- Department of Biology, University of Padova, Via Ugo Bassi, 58b 35121 Padova, Italy
| | - Isabella Tessari
- Department of Biology, University of Padova, Via Ugo Bassi, 58b 35121 Padova, Italy
| | - Stefano Mammi
- Department of Chemical Sciences, University of Padova, via Marzolo, 1 35131 Padova, Italy
| | - Giuseppe Zanotti
- Department of Biomedical Sciences, University of Padova, Via Ugo Bassi, 58b 35121 Padova, Italy
| | - Luigi Bubacco
- Department of Biology, University of Padova, Via Ugo Bassi, 58b 35121 Padova, Italy.
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