1
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Oney-Hawthorne SD, Barondeau DP. Fe-S cluster biosynthesis and maturation: Mass spectrometry-based methods advancing the field. BIOCHIMICA ET BIOPHYSICA ACTA. MOLECULAR CELL RESEARCH 2024; 1871:119784. [PMID: 38908802 DOI: 10.1016/j.bbamcr.2024.119784] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/29/2024] [Revised: 04/25/2024] [Accepted: 06/10/2024] [Indexed: 06/24/2024]
Abstract
Iron‑sulfur (FeS) clusters are inorganic protein cofactors that perform essential functions in many physiological processes. Spectroscopic techniques have historically been used to elucidate details of FeS cluster type, their assembly and transfer, and changes in redox and ligand binding properties. Structural probes of protein topology, complex formation, and conformational dynamics are also necessary to fully understand these FeS protein systems. Recent developments in mass spectrometry (MS) instrumentation and methods provide new tools to investigate FeS cluster and structural properties. With the unique advantage of sampling all species in a mixture, MS-based methods can be utilized as a powerful complementary approach to probe native dynamic heterogeneity, interrogate protein folding and unfolding equilibria, and provide extensive insight into protein binding partners within an entire proteome. Here, we highlight key advances in FeS protein studies made possible by MS methodology and contribute an outlook for its role in the field.
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Affiliation(s)
| | - David P Barondeau
- Department of Chemistry, Texas A&M University, College Station, TX 77842, USA.
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2
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Liiv M, Vaarmann A, Safiulina D, Choubey V, Gupta R, Kuum M, Janickova L, Hodurova Z, Cagalinec M, Zeb A, Hickey MA, Huang YL, Gogichaishvili N, Mandel M, Plaas M, Vasar E, Loncke J, Vervliet T, Tsai TF, Bultynck G, Veksler V, Kaasik A. ER calcium depletion as a key driver for impaired ER-to-mitochondria calcium transfer and mitochondrial dysfunction in Wolfram syndrome. Nat Commun 2024; 15:6143. [PMID: 39034309 PMCID: PMC11271478 DOI: 10.1038/s41467-024-50502-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2023] [Accepted: 07/10/2024] [Indexed: 07/23/2024] Open
Abstract
Wolfram syndrome is a rare genetic disease caused by mutations in the WFS1 or CISD2 gene. A primary defect in Wolfram syndrome involves poor ER Ca2+ handling, but how this disturbance leads to the disease is not known. The current study, performed in primary neurons, the most affected and disease-relevant cells, involving both Wolfram syndrome genes, explains how the disturbed ER Ca2+ handling compromises mitochondrial function and affects neuronal health. Loss of ER Ca2+ content and impaired ER-mitochondrial contact sites in the WFS1- or CISD2-deficient neurons is associated with lower IP3R-mediated Ca2+ transfer from ER to mitochondria and decreased mitochondrial Ca2+ uptake. In turn, reduced mitochondrial Ca2+ content inhibits mitochondrial ATP production leading to an increased NADH/NAD+ ratio. The resulting bioenergetic deficit and reductive stress compromise the health of the neurons. Our work also identifies pharmacological targets and compounds that restore Ca2+ homeostasis, enhance mitochondrial function and improve neuronal health.
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Affiliation(s)
- Mailis Liiv
- Departments of Pharmacology and Physiology, Institute of Biomedicine and Translational Medicine, University of Tartu, Ravila 19, 50411, Tartu, Estonia
| | - Annika Vaarmann
- Departments of Pharmacology and Physiology, Institute of Biomedicine and Translational Medicine, University of Tartu, Ravila 19, 50411, Tartu, Estonia.
| | - Dzhamilja Safiulina
- Departments of Pharmacology and Physiology, Institute of Biomedicine and Translational Medicine, University of Tartu, Ravila 19, 50411, Tartu, Estonia
| | - Vinay Choubey
- Departments of Pharmacology and Physiology, Institute of Biomedicine and Translational Medicine, University of Tartu, Ravila 19, 50411, Tartu, Estonia
| | - Ruby Gupta
- Departments of Pharmacology and Physiology, Institute of Biomedicine and Translational Medicine, University of Tartu, Ravila 19, 50411, Tartu, Estonia
| | - Malle Kuum
- Departments of Pharmacology and Physiology, Institute of Biomedicine and Translational Medicine, University of Tartu, Ravila 19, 50411, Tartu, Estonia
| | - Lucia Janickova
- Departments of Pharmacology and Physiology, Institute of Biomedicine and Translational Medicine, University of Tartu, Ravila 19, 50411, Tartu, Estonia
- Chair of Pharmacology, Faculty of Science and Medicine, University of Fribourg, Ch. du Musée 14, 1700, Fribourg, Switzerland
- Department of Cell Pharmacology and Developmental Toxicology, Institute of Experimental Pharmacology and Toxicology, Dúbravská cesta 9, 84104, Bratislava, Slovakia
| | - Zuzana Hodurova
- Departments of Pharmacology and Physiology, Institute of Biomedicine and Translational Medicine, University of Tartu, Ravila 19, 50411, Tartu, Estonia
- Department of Cell Pharmacology and Developmental Toxicology, Institute of Experimental Pharmacology and Toxicology, Dúbravská cesta 9, 84104, Bratislava, Slovakia
| | - Michal Cagalinec
- Departments of Pharmacology and Physiology, Institute of Biomedicine and Translational Medicine, University of Tartu, Ravila 19, 50411, Tartu, Estonia
- Department of Cellular Cardiology, Institute of Experimental Endocrinology, Biomedical Research Center and Centre of Excellence for Advanced Materials Application, Slovak Academy of Sciences, Dúbravská cesta 9, 84505, Bratislava, Slovakia
| | - Akbar Zeb
- Departments of Pharmacology and Physiology, Institute of Biomedicine and Translational Medicine, University of Tartu, Ravila 19, 50411, Tartu, Estonia
| | - Miriam A Hickey
- Departments of Pharmacology and Physiology, Institute of Biomedicine and Translational Medicine, University of Tartu, Ravila 19, 50411, Tartu, Estonia
| | - Yi-Long Huang
- Department of Life Sciences, Institute of Genome Sciences and Center for Healthy Longevity and Aging Sciences, National Yang Ming Chiao Tung University, 155 Li-Nong St., Section 2, Peitou, Taipei, 11221, Taiwan
| | - Nana Gogichaishvili
- Departments of Pharmacology and Physiology, Institute of Biomedicine and Translational Medicine, University of Tartu, Ravila 19, 50411, Tartu, Estonia
| | - Merle Mandel
- Departments of Pharmacology and Physiology, Institute of Biomedicine and Translational Medicine, University of Tartu, Ravila 19, 50411, Tartu, Estonia
| | - Mario Plaas
- Departments of Pharmacology and Physiology, Institute of Biomedicine and Translational Medicine, University of Tartu, Ravila 19, 50411, Tartu, Estonia
| | - Eero Vasar
- Departments of Pharmacology and Physiology, Institute of Biomedicine and Translational Medicine, University of Tartu, Ravila 19, 50411, Tartu, Estonia
| | - Jens Loncke
- Laboratory of Molecular and Cellular Signaling, Department of Cellular and Molecular Medicine, KU Leuven, O&N1 Herestraat 49, Leuven, Belgium
| | - Tim Vervliet
- Laboratory of Molecular and Cellular Signaling, Department of Cellular and Molecular Medicine, KU Leuven, O&N1 Herestraat 49, Leuven, Belgium
| | - Ting-Fen Tsai
- Department of Life Sciences, Institute of Genome Sciences and Center for Healthy Longevity and Aging Sciences, National Yang Ming Chiao Tung University, 155 Li-Nong St., Section 2, Peitou, Taipei, 11221, Taiwan
| | - Geert Bultynck
- Laboratory of Molecular and Cellular Signaling, Department of Cellular and Molecular Medicine, KU Leuven, O&N1 Herestraat 49, Leuven, Belgium
| | - Vladimir Veksler
- Laboratory of Signaling and Cardiovascular Pathophysiology, Université Paris-Saclay, Inserm, UMR-S 1180, 91400, Orsay, France
| | - Allen Kaasik
- Departments of Pharmacology and Physiology, Institute of Biomedicine and Translational Medicine, University of Tartu, Ravila 19, 50411, Tartu, Estonia.
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3
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Nechushtai R, Rowland L, Karmi O, Marjault HB, Nguyen TT, Mittal S, Ahmed RS, Grant D, Manrique-Acevedo C, Morcos F, Onuchic JN, Mittler R. CISD3/MiNT is required for complex I function, mitochondrial integrity, and skeletal muscle maintenance. Proc Natl Acad Sci U S A 2024; 121:e2405123121. [PMID: 38781208 PMCID: PMC11145280 DOI: 10.1073/pnas.2405123121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2024] [Accepted: 04/23/2024] [Indexed: 05/25/2024] Open
Abstract
Mitochondria play a central role in muscle metabolism and function. A unique family of iron-sulfur proteins, termed CDGSH Iron Sulfur Domain-containing (CISD/NEET) proteins, support mitochondrial function in skeletal muscles. The abundance of these proteins declines during aging leading to muscle degeneration. Although the function of the outer mitochondrial CISD/NEET proteins, CISD1/mitoNEET and CISD2/NAF-1, has been defined in skeletal muscle cells, the role of the inner mitochondrial CISD protein, CISD3/MiNT, is currently unknown. Here, we show that CISD3 deficiency in mice results in muscle atrophy that shares proteomic features with Duchenne muscular dystrophy. We further reveal that CISD3 deficiency impairs the function and structure of skeletal muscles, as well as their mitochondria, and that CISD3 interacts with, and donates its [2Fe-2S] clusters to, complex I respiratory chain subunit NADH Ubiquinone Oxidoreductase Core Subunit V2 (NDUFV2). Using coevolutionary and structural computational tools, we model a CISD3-NDUFV2 complex with proximal coevolving residue interactions conducive of [2Fe-2S] cluster transfer reactions, placing the clusters of the two proteins 10 to 16 Å apart. Taken together, our findings reveal that CISD3/MiNT is important for supporting the biogenesis and function of complex I, essential for muscle maintenance and function. Interventions that target CISD3 could therefore impact different muscle degeneration syndromes, aging, and related conditions.
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Affiliation(s)
- Rachel Nechushtai
- Plant & Environmental Sciences, The Alexander Silberman Institute of Life Science and The Wolfson Centre for Applied Structural Biology, Faculty of Science and Mathematics, The Edmond J. Safra Campus at Givat Ram, The Hebrew University of Jerusalem, Jerusalem91904, Israel
| | - Linda Rowland
- Department of Surgery, University of Missouri School of Medicine, Christopher S. Bond Life Sciences Center, University of Missouri, Columbia, MO65201
| | - Ola Karmi
- Plant & Environmental Sciences, The Alexander Silberman Institute of Life Science and The Wolfson Centre for Applied Structural Biology, Faculty of Science and Mathematics, The Edmond J. Safra Campus at Givat Ram, The Hebrew University of Jerusalem, Jerusalem91904, Israel
| | - Henri-Baptiste Marjault
- Department of Surgery, University of Missouri School of Medicine, Christopher S. Bond Life Sciences Center, University of Missouri, Columbia, MO65201
| | - Thi Thao Nguyen
- Gehrke Proteomics Center, Christopher S. Bond Life Sciences Center, University of Missouri, Columbia, MO65211
| | - Shubham Mittal
- Department of Biological Sciences, University of Texas at Dallas, Richardson, TX75080
| | - Raheel S. Ahmed
- Department of Biological Sciences, University of Texas at Dallas, Richardson, TX75080
| | - DeAna Grant
- Electron Microscopy Core Facility, University of Missouri, NextGen Precision Health Institute, Columbia, MO65211
| | - Camila Manrique-Acevedo
- Division of Endocrinology and Metabolism, Department of Medicine, University of Missouri, Columbia, MO 65201
- NextGen Precision Health, University of Missouri, Columbia, MO 65201
- Harry S. Truman Memorial Veterans’ Hospital, Columbia, MO 65201
| | - Faruck Morcos
- Department of Biological Sciences, University of Texas at Dallas, Richardson, TX75080
- Department of Bioengineering, University of Texas at Dallas, Richardson, TX75080
- Department of Physics, University of Texas at Dallas, Richardson, TX75080
- Center for Systems Biology, University of Texas at Dallas, Richardson, TX75080
| | - José N. Onuchic
- Center for Theoretical Biological Physics, Rice University, Houston, TX77005
- Department of Physics and Astronomy, Rice University, Houston, TX77005
- Department of Chemistry, Rice University, Houston, TX77005
- Department of Biosciences, Rice University, Houston, TX77005
| | - Ron Mittler
- Department of Surgery, University of Missouri School of Medicine, Christopher S. Bond Life Sciences Center, University of Missouri, Columbia, MO65201
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4
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Grifagni D, Silva JM, Querci L, Lepoivre M, Vallières C, Louro RO, Banci L, Piccioli M, Golinelli-Cohen MP, Cantini F. Biochemical and cellular characterization of the CISD3 protein: Molecular bases of cluster release and destabilizing effects of nitric oxide. J Biol Chem 2024; 300:105745. [PMID: 38354784 PMCID: PMC10937110 DOI: 10.1016/j.jbc.2024.105745] [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: 10/24/2023] [Revised: 02/02/2024] [Accepted: 02/05/2024] [Indexed: 02/16/2024] Open
Abstract
The NEET proteins, an important family of iron-sulfur (Fe-S) proteins, have generated a strong interest due to their involvement in diverse diseases such as cancer, diabetes, and neurodegenerative disorders. Among the human NEET proteins, CISD3 has been the least studied, and its functional role is still largely unknown. We have investigated the biochemical features of CISD3 at the atomic and in cellulo levels upon challenge with different stress conditions i.e., iron deficiency, exposure to hydrogen peroxide, and nitric oxide. The redox and cellular stability properties of the protein agree on a predominance of reduced form of CISD3 in the cells. Upon the addition of iron chelators, CISD3 loses its Fe-S clusters and becomes unstructured, and its cellular level drastically decreases. Chemical shift perturbation measurements suggest that, upon cluster oxidation, the protein undergoes a conformational change at the C-terminal CDGSH domain, which determines the instability of the oxidized state. This redox-associated conformational change may be the source of cooperative electron transfer via the two [Fe2S2] clusters in CISD3, which displays a single sharp voltammetric signal at -31 mV versus SHE. Oxidized CISD3 is particularly sensitive to the presence of hydrogen peroxide in vitro, whereas only the reduced form is able to bind nitric oxide. Paramagnetic NMR provides clear evidence that, upon NO binding, the cluster is disassembled but iron ions are still bound to the protein. Accordingly, in cellulo CISD3 is unaffected by oxidative stress induced by hydrogen peroxide but it becomes highly unstable in response to nitric oxide treatment.
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Affiliation(s)
- Deborah Grifagni
- Magnetic Resonance Center and Department of Chemistry, University of Florence, Sesto Fiorentino, Italy
| | - José Malanho Silva
- Magnetic Resonance Center and Department of Chemistry, University of Florence, Sesto Fiorentino, Italy
| | - Leonardo Querci
- Magnetic Resonance Center and Department of Chemistry, University of Florence, Sesto Fiorentino, Italy
| | - Michel Lepoivre
- CNRS, Institut de Chimie des Substances Naturelles, UPR 2301, Université Paris-Saclay, Gif-sur-Yvette, France
| | - Cindy Vallières
- CNRS, Institut de Chimie des Substances Naturelles, UPR 2301, Université Paris-Saclay, Gif-sur-Yvette, France
| | - Ricardo O Louro
- Instituto de Tecnologia Química e Biológica António Xavier (ITQB-NOVA), Universidade Nova de Lisboa, Oeiras, Portugal
| | - Lucia Banci
- Magnetic Resonance Center and Department of Chemistry, University of Florence, Sesto Fiorentino, Italy
| | - Mario Piccioli
- Magnetic Resonance Center and Department of Chemistry, University of Florence, Sesto Fiorentino, Italy.
| | | | - Francesca Cantini
- Magnetic Resonance Center and Department of Chemistry, University of Florence, Sesto Fiorentino, Italy.
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5
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Bakhtiar D, Vondraskova K, Pengelly RJ, Chivers M, Kralovicova J, Vorechovsky I. Exonic splicing code and coordination of divalent metals in proteins. Nucleic Acids Res 2024; 52:1090-1106. [PMID: 38055834 PMCID: PMC10853796 DOI: 10.1093/nar/gkad1161] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2023] [Revised: 11/15/2023] [Accepted: 11/17/2023] [Indexed: 12/08/2023] Open
Abstract
Exonic sequences contain both protein-coding and RNA splicing information but the interplay of the protein and splicing code is complex and poorly understood. Here, we have studied traditional and auxiliary splicing codes of human exons that encode residues coordinating two essential divalent metals at the opposite ends of the Irving-Williams series, a universal order of relative stabilities of metal-organic complexes. We show that exons encoding Zn2+-coordinating amino acids are supported much less by the auxiliary splicing motifs than exons coordinating Ca2+. The handicap of the former is compensated by stronger splice sites and uridine-richer polypyrimidine tracts, except for position -3 relative to 3' splice junctions. However, both Ca2+ and Zn2+ exons exhibit close-to-constitutive splicing in multiple tissues, consistent with their critical importance for metalloprotein function and a relatively small fraction of expendable, alternatively spliced exons. These results indicate that constraints imposed by metal coordination spheres on RNA splicing have been efficiently overcome by the plasticity of exon-intron architecture to ensure adequate metalloprotein expression.
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Affiliation(s)
- Dara Bakhtiar
- University of Southampton, Faculty of Medicine, Southampton SO16 6YD, UK
| | - Katarina Vondraskova
- Slovak Academy of Sciences, Centre of Biosciences, 840 05 Bratislava, Slovak Republic
| | - Reuben J Pengelly
- University of Southampton, Faculty of Medicine, Southampton SO16 6YD, UK
| | - Martin Chivers
- University of Southampton, Faculty of Medicine, Southampton SO16 6YD, UK
| | - Jana Kralovicova
- University of Southampton, Faculty of Medicine, Southampton SO16 6YD, UK
- Slovak Academy of Sciences, Centre of Biosciences, 840 05 Bratislava, Slovak Republic
| | - Igor Vorechovsky
- University of Southampton, Faculty of Medicine, Southampton SO16 6YD, UK
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6
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Abstract
Cell penetrating peptides (CPPs) are natural agents that efficiently permeate biological membranes. They are frequently positively charged, which is surprising since membranes pose hydrophobic barriers. In this Perspective, I discuss computations and experiments of a permeation model that couples permeant displacement with a membrane defect. We call the proposed mechanism Defect Assisted by Charge (DAC) and illustrate that it reduces the free energy barrier for translocation. A metastable state at the center of the membrane may be observed due to the charge interactions with the phospholipid head groups at the two leaflets. The combination of experiments and simulations sheds light on the mechanisms of a charged peptide translocation across phospholipid membranes.
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Affiliation(s)
- Ron Elber
- The Department of Chemistry, The Oden Institute, The University of Texas at Austin, Austin, Texas 78712, United States
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7
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Maio N, Raza MK, Li Y, Zhang DL, Bollinger JM, Krebs C, Rouault TA. An iron-sulfur cluster in the zinc-binding domain of the SARS-CoV-2 helicase modulates its RNA-binding and -unwinding activities. Proc Natl Acad Sci U S A 2023; 120:e2303860120. [PMID: 37552760 PMCID: PMC10438387 DOI: 10.1073/pnas.2303860120] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2023] [Accepted: 06/26/2023] [Indexed: 08/10/2023] Open
Abstract
Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), the causative agent of COVID-19, uses an RNA-dependent RNA polymerase along with several accessory factors to replicate its genome and transcribe its genes. Nonstructural protein (nsp) 13 is a helicase required for viral replication. Here, we found that nsp13 ligates iron, in addition to zinc, when purified anoxically. Using inductively coupled plasma mass spectrometry, UV-visible absorption, EPR, and Mössbauer spectroscopies, we characterized nsp13 as an iron-sulfur (Fe-S) protein that ligates an Fe4S4 cluster in the treble-clef metal-binding site of its zinc-binding domain. The Fe-S cluster in nsp13 modulates both its binding to the template RNA and its unwinding activity. Exposure of the protein to the stable nitroxide TEMPOL oxidizes and degrades the cluster and drastically diminishes unwinding activity. Thus, optimal function of nsp13 depends on a labile Fe-S cluster that is potentially targetable for COVID-19 treatment.
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Affiliation(s)
- Nunziata Maio
- Eunice Kennedy Shriver National Institute of Child Health and Human Development, NIH, Bethesda, MD20892
| | - Md Kausar Raza
- Department of Chemistry, The Pennsylvania State University, University Park, PA16802
| | - Yan Li
- National Institute of Neurological Disorders and Stroke, NIH, Proteomics Core Facility, Bethesda, MD20892
| | - De-Liang Zhang
- Eunice Kennedy Shriver National Institute of Child Health and Human Development, NIH, Bethesda, MD20892
| | - J. Martin Bollinger
- Department of Chemistry, The Pennsylvania State University, University Park, PA16802
- Department of Biochemistry and Molecular Biology, The Pennsylvania State University, University Park, PA16802
| | - Carsten Krebs
- Department of Chemistry, The Pennsylvania State University, University Park, PA16802
- Department of Biochemistry and Molecular Biology, The Pennsylvania State University, University Park, PA16802
| | - Tracey A. Rouault
- Eunice Kennedy Shriver National Institute of Child Health and Human Development, NIH, Bethesda, MD20892
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8
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Marjault HB, Karmi O, Rowland L, Nguyen TT, Grant D, Manrique-Acevedo C, Nechushtai R, Mittler R. CISD3 is required for Complex I function, mitochondrial integrity, and skeletal muscle maintenance. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.06.03.543558. [PMID: 37398338 PMCID: PMC10312576 DOI: 10.1101/2023.06.03.543558] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/04/2023]
Abstract
Mitochondria play a central role in muscle metabolism and function. In skeletal muscles, a unique family of iron-sulfur proteins, termed CISD proteins, support mitochondrial function. The abundance of these proteins declines with aging leading to muscle degeneration. Although the function of the outer mitochondrial proteins CISD1 and CISD2 has been defined, the role of the inner mitochondrial protein CISD3, is currently unknown. Here we show that CISD3 deficiency in mice results in muscle atrophy that shares proteomic features with Duchenne Muscular Dystrophy. We further reveal that CISD3 deficiency impairs the function and structure of skeletal muscle mitochondria, and that CISD3 interacts with, and donates its clusters to, Complex I respiratory chain subunit NDUFV2. These findings reveal that CISD3 is important for supporting the biogenesis and function of Complex I, essential for muscle maintenance and function. Interventions that target CISD3 could therefore impact muscle degeneration syndromes, aging, and related conditions.
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9
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Zuo K, Kranjc A, Capelli R, Rossetti G, Nechushtai R, Carloni P. Metadynamics simulations of ligands binding to protein surfaces: a novel tool for rational drug design. Phys Chem Chem Phys 2023; 25:13819-13824. [PMID: 37184538 DOI: 10.1039/d3cp01388j] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/16/2023]
Abstract
Structure-based drug design protocols may encounter difficulties to investigate poses when the biomolecular targets do not exhibit typical binding pockets. In this study, by providing two concrete examples from our labs, we suggest that the combination of metadynamics free energy methods (validated against affinity measurements), along with experimental structural information (by X-ray crystallography and NMR), can help to identify the poses of ligands on protein surfaces. The simulation workflow proposed here was implemented in a widely used code, namely GROMACS, and it could straightforwardly be applied to various drug-design campaigns targeting ligands' binding to protein surfaces.
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Affiliation(s)
- Ke Zuo
- Computational Biomedicine, Institute of Advanced Simulation IAS-5 and Institute of Neuroscience and Medicine INM-9, Forschungszentrum Jülich GmbH, Jülich 52425, Germany.
- Department of Physics, RWTH Aachen University, Aachen 52074, Germany
- The Alexander Silberman Institute of Life Science, The Hebrew University of Jerusalem, Edmond J. Safra Campus at Givat Ram, Jerusalem 91904, Israel
- Department of Physics, Università degli Studi di Ferrara, Ferrara 44121, Italy
| | - Agata Kranjc
- Computational Biomedicine, Institute of Advanced Simulation IAS-5 and Institute of Neuroscience and Medicine INM-9, Forschungszentrum Jülich GmbH, Jülich 52425, Germany.
| | - Riccardo Capelli
- Department of Biosciences, Università degli Studi di Milano, Via Celoria 26, Milan 20133, Italy
| | - Giulia Rossetti
- Computational Biomedicine, Institute of Advanced Simulation IAS-5 and Institute of Neuroscience and Medicine INM-9, Forschungszentrum Jülich GmbH, Jülich 52425, Germany.
- Jülich Supercomputing Center (JSC), Forschungszentrum Jülich GmbH, Jülich 52425, Germany
- Department of Neurology, Faculty of Medicine, RWTH Aachen University, Aachen 52074, Germany
| | - Rachel Nechushtai
- The Alexander Silberman Institute of Life Science, The Hebrew University of Jerusalem, Edmond J. Safra Campus at Givat Ram, Jerusalem 91904, Israel
| | - Paolo Carloni
- Computational Biomedicine, Institute of Advanced Simulation IAS-5 and Institute of Neuroscience and Medicine INM-9, Forschungszentrum Jülich GmbH, Jülich 52425, Germany.
- Department of Physics, RWTH Aachen University, Aachen 52074, Germany
- JARA Institute: Molecular Neuroscience and Imaging, Institute of Neuroscience and Medicine INM-11, Forschungszentrum Jülich GmbH, Jülich 52425, Germany
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10
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An Updated Overview on the Role of Small Molecules and Natural Compounds in the "Young Science" of Rejuvenation. Antioxidants (Basel) 2023; 12:antiox12020288. [PMID: 36829846 PMCID: PMC9951981 DOI: 10.3390/antiox12020288] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2022] [Revised: 01/23/2023] [Accepted: 01/25/2023] [Indexed: 01/31/2023] Open
Abstract
Aging is a gradual process that occurs over time which leads to a progressive decline of cells and tissues. Telomere shortening, genetic instability, epigenetic alteration, and the accumulation of misfolded proteins represent the main hallmarks that cause perturbed cellular functions; this occurs in conjunction with the progression of the so-called "aging clocks". Rejuvenation aims to influence the natural evolution of such aging clocks and to enhance regenerative capacity, thus overcoming the limitations of common anti-aging interventions. Current rejuvenation processes are based on heterochronic parabiosis, cell damage dilution through asymmetrical cell division, the excretion of extracellular vesicles, the modulation of genetic instability involving G-quadruplexes and DNA methylation, and cell reprogramming using Yamanaka factors and the actions of antioxidant species. In this context, we reviewed the most recent contributions that report on small molecules acting as senotherapeutics; these molecules act by promoting one or more of the abovementioned processes. Candidate drugs and natural compounds that are being studied as potential rejuvenation therapies act by interfering with CDGSH iron-sulfur domain 2 (CISD2) expression, G-quadruplex structures, DNA methylation, and mitochondrial decay. Moreover, direct and indirect antioxidants have been reported to counteract or revert aging through a combination of mixed mechanisms.
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11
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Yeh CH, Shen ZQ, Wang TW, Kao CH, Teng YC, Yeh TK, Lu CK, Tsai TF. Hesperetin promotes longevity and delays aging via activation of Cisd2 in naturally aged mice. J Biomed Sci 2022; 29:53. [PMID: 35871686 PMCID: PMC9310407 DOI: 10.1186/s12929-022-00838-7] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2022] [Accepted: 07/19/2022] [Indexed: 11/18/2022] Open
Abstract
Abstract
Background
The human CISD2 gene is located within a longevity region mapped on chromosome 4q. In mice, Cisd2 levels decrease during natural aging and genetic studies have shown that a high level of Cisd2 prolongs mouse lifespan and healthspan. Here, we evaluate the feasibility of using a Cisd2 activator as an effective way of delaying aging.
Methods
Hesperetin was identified as a promising Cisd2 activator by herb compound library screening. Hesperetin has no detectable toxicity based on in vitro and in vivo models. Naturally aged mice fed dietary hesperetin were used to investigate the effect of this Cisd2 activator on lifespan prolongation and the amelioration of age-related structural defects and functional decline. Tissue-specific Cisd2 knockout mice were used to study the Cisd2-dependent anti-aging effects of hesperetin. RNA sequencing was used to explore the biological effects of hesperetin on aging.
Results
Three discoveries are pinpointed. Firstly, hesperetin, a promising Cisd2 activator, when orally administered late in life, enhances Cisd2 expression and prolongs healthspan in old mice. Secondly, hesperetin functions mainly in a Cisd2-dependent manner to ameliorate age-related metabolic decline, body composition changes, glucose dysregulation, and organ senescence. Finally, a youthful transcriptome pattern is regained after hesperetin treatment during old age.
Conclusions
Our findings indicate that a Cisd2 activator, hesperetin, represents a promising and broadly effective translational approach to slowing down aging and promoting longevity via the activation of Cisd2.
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12
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Boos JR, Jandrain HN, Hagiuda E, Taguchi AT, Hasegawa K, Fedun BL, Taylor SJ, Elad SM, Faber SE, Kumasaka T, Iwasaki T, Geldenhuys WJ. Structure and biological evaluation of Caenorhabditis elegans CISD-1/mitoNEET, a KLP-17 tail domain homologue, supports attenuation of paraquat-induced oxidative stress through a p38 MAPK-mediated antioxidant defense response. ADVANCES IN REDOX RESEARCH : AN OFFICIAL JOURNAL OF THE SOCIETY FOR REDOX BIOLOGY AND MEDICINE AND THE SOCIETY FOR FREE RADICAL RESEARCH-EUROPE 2022; 6:100048. [PMID: 36533211 PMCID: PMC9757825 DOI: 10.1016/j.arres.2022.100048] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
CISD-1/mitoNEET is an evolutionarily conserved outer mitochondrial membrane [2Fe-2S] protein that regulates mitochondrial function and morphology. The [2Fe-2S] clusters are redox reactive and shown to mediate oxidative stress in vitro and in vivo. However, there is limited research studying CISD-1/mitoNEET mediation of oxidative stress in response to environmental stressors. In this study, we have determined the X-ray crystal structure of Caenorhabditis elegans CISD-1/mitoNEET homologue and evaluated the mechanisms of oxidative stress resistance to the pro-oxidant paraquat in age-synchronized populations by generating C. elegans gain and loss of function CISD-1 models. The structure of the C. elegans CISD-1/mitoNEET soluble domain refined at 1.70-Å resolution uniquely shows a reversible disulfide linkage at the homo-dimeric interface and also represents the N-terminal tail domain for dimerization of the cognate kinesin motor protein KLP-17 involved in chromosome segregation dynamics and germline development of the nematode. Moreover, overexpression of CISD-1/mitoNEET in C. elegans has revealed beneficial effects on oxidative stress resistance against paraquat-induced reactive oxygen species generation, corroborated by increased activation of the p38 mitogen-activated protein kinase (MAPK) signaling cascade.
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Affiliation(s)
- Jacob R. Boos
- Department of Neuroscience, School of Medicine, West Virginia University, Morgantown, WV, USA
| | - Hanna N. Jandrain
- Department of Pharmaceutical Sciences, School of Pharmacy, West Virginia University, Morgantown, WV, USA
| | - Emi Hagiuda
- Department of Biochemistry and Molecular Biology, Nippon Medical School, Sendagi, Tokyo 113-8602, Japan
| | - Alexander T. Taguchi
- Department of Biochemistry and Molecular Biology, Nippon Medical School, Sendagi, Tokyo 113-8602, Japan
| | - Kazuya Hasegawa
- Japan Synchrotron Radiation Research Institute (JASRI), SPring-8, Sayo, Hyogo 679-5198, Japan
| | - Bailey L. Fedun
- Department of Neuroscience, School of Medicine, West Virginia University, Morgantown, WV, USA
| | - Sarah J. Taylor
- Department of Neuroscience, School of Medicine, West Virginia University, Morgantown, WV, USA
| | - Sofhia M. Elad
- Department of Neuroscience, School of Medicine, West Virginia University, Morgantown, WV, USA
| | - Sarah E. Faber
- Department of Neuroscience, School of Medicine, West Virginia University, Morgantown, WV, USA
| | - Takashi Kumasaka
- Japan Synchrotron Radiation Research Institute (JASRI), SPring-8, Sayo, Hyogo 679-5198, Japan
| | - Toshio Iwasaki
- Department of Biochemistry and Molecular Biology, Nippon Medical School, Sendagi, Tokyo 113-8602, Japan
| | - Werner J. Geldenhuys
- Department of Neuroscience, School of Medicine, West Virginia University, Morgantown, WV, USA
- Department of Pharmaceutical Sciences, School of Pharmacy, West Virginia University, Morgantown, WV, USA
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13
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Kunk C, Kruger J, Mendoza G, Markitan J, Bias T, Mann A, Nath A, Geldenhuys WJ, Menze MA, Konkle ME. MitoNEET's Reactivity of Lys55 toward Pyridoxal Phosphate Demonstrates its Activity as a Transaminase Enzyme. ACS Chem Biol 2022; 17:2716-2722. [PMID: 36194135 DOI: 10.1021/acschembio.2c00572] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
MitoNEET is a [2Fe-2S] redox active mitochondrial protein belonging to the CDGSH iron-sulfur domain (CISD) family of proteins. MitoNEET has been implicated as a potential target for drug development to treat various disorders, including type-2 diabetes, cancer, and Parkinson's disease. However, the specific cellular function(s) for mitoNEET still remains to be fully elucidated, and this presents a significant roadblock in rational drug development. Here, we show that mitoNEET binds the enzymatic cofactor pyridoxal phosphate (PLP) specifically at only one of its 11 lysine residues, Lys55. Lys55 is part of the soluble portion of the protein and is in a hydrogen-bonding network with the histidine residue that ligates the [2Fe-2S] cluster. In the presence of mitoNEET, PLP catalyzes the transamination reaction of the amino acid cysteine and the alpha-keto acid 2-oxoglutarate to form 3-mercaptopyruvate and glutamate. This work identifies, for the first time, mitoNEET as an enzyme with cysteine transaminase activity.
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Affiliation(s)
- Courtney Kunk
- Department of Chemistry, Ball State University, Muncie, Indiana 47306, United States
| | - Josh Kruger
- Department of Chemistry, Ball State University, Muncie, Indiana 47306, United States
| | - George Mendoza
- Department of Chemistry, Ball State University, Muncie, Indiana 47306, United States
| | - Joey Markitan
- Department of Chemistry, Ball State University, Muncie, Indiana 47306, United States
| | - Taylor Bias
- Department of Chemistry, Ball State University, Muncie, Indiana 47306, United States
| | - Alexis Mann
- Department of Chemistry, Ball State University, Muncie, Indiana 47306, United States
| | - Abhinav Nath
- Department of Medicinal Chemistry, University of Washington, Seattle, Washington 98195, United States
| | - Werner J Geldenhuys
- School of Pharmacology, University of West Virginia, Morgantown, West Virginia 26506, United States
| | - Michael A Menze
- Department of Biology, University of Louisville, Louisville, Kentucky 40292, United States
| | - Mary E Konkle
- Department of Chemistry, Ball State University, Muncie, Indiana 47306, United States
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14
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Abbas G, Cardenas AE, Elber R. The Structures of Heterogeneous Membranes and Their Interactions with an Anticancer Peptide: A Molecular Dynamics Study. Life (Basel) 2022; 12:1473. [PMID: 36294908 PMCID: PMC9604715 DOI: 10.3390/life12101473] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2022] [Revised: 09/16/2022] [Accepted: 09/20/2022] [Indexed: 12/02/2022] Open
Abstract
We conduct molecular dynamics simulations of model heterogeneous membranes and their interactions with a 24-amino acid peptide-NAF-144-67. NAF-144-67 is an anticancer peptide that selectively permeates and kills malignant cells; it does not permeate normal cells. We examine three membranes with different binary mixtures of lipids, DOPC-DOPA, DOPC-DOPS, and DOPC-DOPE, with a single peptide embedded in each as models for the diversity of biological membranes. We illustrate that the peptide organization in the membrane depends on the types of nearby phospholipids and is influenced by the charge and size of the head groups. The present study sheds light on early events of permeation and the mechanisms by which an amphiphilic peptide crosses from an aqueous solution to a hydrophobic membrane. Understanding the translocation mechanism is likely to help the design of new permeants.
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Affiliation(s)
- Ghulam Abbas
- National Center for Bioinformatics, Quaid-i-Azam University, Islamabad 45320, Pakistan or
| | - Alfredo E. Cardenas
- Oden Institute for Computational and Engineering Sciences, University of Texas at Austin, Austin, TX 78712, USA
| | - Ron Elber
- Oden Institute for Computational and Engineering Sciences, University of Texas at Austin, Austin, TX 78712, USA
- Department of Chemistry, University of Texas at Austin, Austin, TX 78712, USA
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15
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Fontenot CR, Cheng Z, Ding H. Nitric oxide reversibly binds the reduced [2Fe-2S] cluster in mitochondrial outer membrane protein mitoNEET and inhibits its electron transfer activity. Front Mol Biosci 2022; 9:995421. [PMID: 36158570 PMCID: PMC9490426 DOI: 10.3389/fmolb.2022.995421] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2022] [Accepted: 08/12/2022] [Indexed: 11/30/2022] Open
Abstract
MitoNEET is a mitochondrial outer membrane protein that regulates energy metabolism, iron homeostasis, and production of reactive oxygen species in cells. Aberrant expression of mitoNEET in tissues has been linked to type II diabetes, neurodegenerative diseases, and several types of cancer. Structurally, the N-terminal domain of mitoNEET has a single transmembrane alpha helix that anchors the protein to mitochondrial outer membrane. The C-terminal cytosolic domain of mitoNEET hosts a redox active [2Fe-2S] cluster via an unusual ligand arrangement of three cysteine and one histidine residues. Here we report that the reduced [2Fe-2S] cluster in the C-terminal cytosolic domain of mitoNEET (mitoNEET45-108) is able to bind nitric oxide (NO) without disruption of the cluster. Importantly, binding of NO at the reduced [2Fe-2S] cluster effectively inhibits the redox transition of the cluster in mitoNEET45-108. While the NO-bound [2Fe-2S] cluster in mitoNEET45-108 is stable, light excitation releases NO from the NO-bound [2Fe-2S] cluster and restores the redox transition activity of the cluster in mitoNEET45-108. The results suggest that NO may regulate the electron transfer activity of mitoNEET in mitochondrial outer membrane via reversible binding to its reduced [2Fe-2S] cluster.
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Affiliation(s)
| | | | - Huangen Ding
- Department of Biological Sciences, Louisiana State University, Baton Rouge, LA, United States
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16
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Sohn YS, Losub-Amir A, Cardenas AE, Karmi O, Yahana MD, Gruman T, Rowland L, Marjault HB, Webb LJ, Mittler R, Elber R, Friedler A, Nechushtai R. A peptide-derived strategy for specifically targeting the mitochondria and ER of cancer cells: a new approach in fighting cancer. Chem Sci 2022; 13:6929-6941. [PMID: 35774163 PMCID: PMC9200128 DOI: 10.1039/d2sc01934e] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2022] [Accepted: 04/18/2022] [Indexed: 12/13/2022] Open
Abstract
An effective anti-cancer therapy should exclusively target cancer cells and trigger in them a broad spectrum of cell death pathways that will prevent avoidance. Here, we present a new approach in cancer therapy that specifically targets the mitochondria and ER of cancer cells. We developed a peptide derived from the flexible and transmembrane domains of the human protein NAF-1/CISD2. This peptide (NAF-144-67) specifically permeates through the plasma membranes of human epithelial breast cancer cells, abolishes their mitochondria and ER, and triggers cell death with characteristics of apoptosis, ferroptosis and necroptosis. In vivo analysis revealed that the peptide significantly decreases tumor growth in mice carrying xenograft human tumors. Computational simulations of cancer vs. normal cell membranes reveal that the specificity of the peptide to cancer cells is due to its selective recognition of their membrane composition. NAF-144-67 represents a promising anti-cancer lead compound that acts via a unique mechanism.
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Affiliation(s)
- Yang Sung Sohn
- The Alexander Silberman Institute of Life Science, The Hebrew University of Jerusalem, Edmond J. Safra Campus at Givat Ram Jerusalem 9190401 Israel
| | - Anat Losub-Amir
- Institute of Chemistry, The Hebrew University of Jerusalem, Edmond J. Safra Campus at Givat Ram Jerusalem 9190401 Israel
| | - Alfredo E Cardenas
- Institute for Computational Engineering and Science and Department of Chemistry, University of Texas at Austin Austin Texas 78712 USA
| | - Ola Karmi
- The Alexander Silberman Institute of Life Science, The Hebrew University of Jerusalem, Edmond J. Safra Campus at Givat Ram Jerusalem 9190401 Israel
- Department of Surgery, University of Missouri School of Medicine, Christopher S. Bond Life Sciences Center University of Missouri. 1201 Rollins St Columbia MO 65201 USA
| | - Merav Darash Yahana
- The Alexander Silberman Institute of Life Science, The Hebrew University of Jerusalem, Edmond J. Safra Campus at Givat Ram Jerusalem 9190401 Israel
| | - Tal Gruman
- Institute of Chemistry, The Hebrew University of Jerusalem, Edmond J. Safra Campus at Givat Ram Jerusalem 9190401 Israel
| | - Linda Rowland
- Department of Surgery, University of Missouri School of Medicine, Christopher S. Bond Life Sciences Center University of Missouri. 1201 Rollins St Columbia MO 65201 USA
| | - Henri-Baptiste Marjault
- The Alexander Silberman Institute of Life Science, The Hebrew University of Jerusalem, Edmond J. Safra Campus at Givat Ram Jerusalem 9190401 Israel
| | - Lauren J Webb
- Department of Chemistry, The University of Texas at Austin 2506 Speedway STOP A5300 Austin TX 78712 USA
| | - Ron Mittler
- Department of Surgery, University of Missouri School of Medicine, Christopher S. Bond Life Sciences Center University of Missouri. 1201 Rollins St Columbia MO 65201 USA
| | - Ron Elber
- Institute for Computational Engineering and Science and Department of Chemistry, University of Texas at Austin Austin Texas 78712 USA
| | - Assaf Friedler
- Institute of Chemistry, The Hebrew University of Jerusalem, Edmond J. Safra Campus at Givat Ram Jerusalem 9190401 Israel
| | - Rachel Nechushtai
- The Alexander Silberman Institute of Life Science, The Hebrew University of Jerusalem, Edmond J. Safra Campus at Givat Ram Jerusalem 9190401 Israel
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17
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Hoang LG, Goßen J, Capelli R, Nguyen TT, Sun Z, Zuo K, Schulz JB, Rossetti G, Carloni P. Multiple Poses and Thermodynamics of Ligands Targeting Protein Surfaces: The Case of Furosemide Binding to mitoNEET in Aqueous Solution. Front Cell Dev Biol 2022; 10:886568. [PMID: 35557955 PMCID: PMC9086288 DOI: 10.3389/fcell.2022.886568] [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: 02/28/2022] [Accepted: 04/04/2022] [Indexed: 11/25/2022] Open
Abstract
Human NEET proteins, such as NAF-1 and mitoNEET, are homodimeric, redox iron-sulfur proteins characterized by triple cysteine and one histidine-coordinated [2Fe-2S] cluster. They exist in an oxidized and reduced state. Abnormal release of the cluster is implicated in a variety of diseases, including cancer and neurodegeneration. The computer-aided and structure-based design of ligands affecting cluster release is of paramount importance from a pharmaceutical perspective. Unfortunately, experimental structural information so far is limited to only one ligand/protein complex. This is the X-ray structure of furosemide bound to oxidized mitoNEET. Here we employ an enhanced sampling approach, Localized Volume-based Metadynamics, developed by some of us, to identify binding poses of furosemide to human mitoNEET protein in solution. The binding modes show a high variability within the same shallow binding pocket on the protein surface identified in the X-ray structure. Among the different binding conformations, one of them is in agreement with the crystal structure’s one. This conformation might have been overstabilized in the latter because of the presence of crystal packing interactions, absent in solution. The calculated binding affinity is compatible with experimental data. Our protocol can be used in a straightforward manner in drug design campaigns targeting this pharmaceutically important family of proteins.
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Affiliation(s)
- Linh Gia Hoang
- INM-11, Forschungszentrum, Jülich, Germany.,Key Laboratory for Multiscale Simulations of Complex Systems, VNU University of Science, Vietnam National University, Hanoi, Vietnam
| | - Jonas Goßen
- IAS-5/INM-9, Forschungszentrum, Jülich, Germany.,Faculty of Mathematics, Computer Science and Natural Sciences, RWTH Aachen University, Aachen, Germany
| | - Riccardo Capelli
- Department of Applied Science and Technology (DISAT), Politecnico di Torino, Torino, Italy
| | - Toan T Nguyen
- Key Laboratory for Multiscale Simulations of Complex Systems, VNU University of Science, Vietnam National University, Hanoi, Vietnam
| | - Zhaoxi Sun
- College of Chemistry and Molecular Engineering, Institute of Theoretical and Computational Chemistry, Peking University, Beijing, China
| | - Ke Zuo
- IAS-5/INM-9, Forschungszentrum, Jülich, Germany.,The Alexander Silberman Institute of Life Science, The Hebrew University of Jerusalem, Edmond J. Safra Campus at Givat Ram, Jerusalem, Israel.,Department of Physics, RWTH Aachen University, Aachen, Germany
| | - Jörg B Schulz
- INM-11, Forschungszentrum, Jülich, Germany.,Department of Neurology, University Hospital Aachen (UKA), RWTH Aachen University, Aachen, Germany
| | - Giulia Rossetti
- IAS-5/INM-9, Forschungszentrum, Jülich, Germany.,Department of Neurology, University Hospital Aachen (UKA), RWTH Aachen University, Aachen, Germany.,Jülich Supercomputing Centre (JSC), Forschungszentrum, Jülich, Germany
| | - Paolo Carloni
- INM-11, Forschungszentrum, Jülich, Germany.,Key Laboratory for Multiscale Simulations of Complex Systems, VNU University of Science, Vietnam National University, Hanoi, Vietnam.,IAS-5/INM-9, Forschungszentrum, Jülich, Germany
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18
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Marjault HB, Karmi O, Zuo K, Michaeli D, Eisenberg-Domovich Y, Rossetti G, de Chassey B, Vonderscher J, Cabantchik I, Carloni P, Mittler R, Livnah O, Meldrum E, Nechushtai R. An anti-diabetic drug targets NEET (CISD) proteins through destabilization of their [2Fe-2S] clusters. Commun Biol 2022; 5:437. [PMID: 35538231 PMCID: PMC9090738 DOI: 10.1038/s42003-022-03393-x] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2021] [Accepted: 04/21/2022] [Indexed: 11/09/2022] Open
Abstract
Elevated levels of mitochondrial iron and reactive oxygen species (ROS) accompany the progression of diabetes, negatively impacting insulin production and secretion from pancreatic cells. In search for a tool to reduce mitochondrial iron and ROS levels, we arrived at a molecule that destabilizes the [2Fe-2S] clusters of NEET proteins (M1). Treatment of db/db diabetic mice with M1 improved hyperglycemia, without the weight gain observed with alternative treatments such as rosiglitazone. The molecular interactions of M1 with the NEET proteins mNT and NAF-1 were determined by X-crystallography. The possibility of controlling diabetes by molecules that destabilize the [2Fe-2S] clusters of NEET proteins, thereby reducing iron-mediated oxidative stress, opens a new route for managing metabolic aberration such as in diabetes.
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Affiliation(s)
- Henri-Baptiste Marjault
- The Alexander Silberman Institute of Life Science and The Wolfson Centre for Applied Structural Biology, Faculty of Science and Mathematics, The Edmond J. Safra Campus at Givat Ram, The Hebrew University of Jerusalem, Jerusalem, 91904, Israel
- Department of Physics, RWTH Aachen University, 52074, Aachen, Germany
| | - Ola Karmi
- The Alexander Silberman Institute of Life Science and The Wolfson Centre for Applied Structural Biology, Faculty of Science and Mathematics, The Edmond J. Safra Campus at Givat Ram, The Hebrew University of Jerusalem, Jerusalem, 91904, Israel
- Department of Surgery, University of Missouri School of Medicine, and Interdisciplinary Plant Group, Christopher S. Bond Life Sciences Center, University of Missouri, 1201 Rollins St, Columbia, MO, 65211, USA
| | - Ke Zuo
- The Alexander Silberman Institute of Life Science and The Wolfson Centre for Applied Structural Biology, Faculty of Science and Mathematics, The Edmond J. Safra Campus at Givat Ram, The Hebrew University of Jerusalem, Jerusalem, 91904, Israel
- Department of Physics, RWTH Aachen University, 52074, Aachen, Germany
| | - Dorit Michaeli
- The Alexander Silberman Institute of Life Science and The Wolfson Centre for Applied Structural Biology, Faculty of Science and Mathematics, The Edmond J. Safra Campus at Givat Ram, The Hebrew University of Jerusalem, Jerusalem, 91904, Israel
| | - Yael Eisenberg-Domovich
- The Alexander Silberman Institute of Life Science and The Wolfson Centre for Applied Structural Biology, Faculty of Science and Mathematics, The Edmond J. Safra Campus at Givat Ram, The Hebrew University of Jerusalem, Jerusalem, 91904, Israel
| | - Giulia Rossetti
- Department of Physics, RWTH Aachen University, 52074, Aachen, Germany
- Computational Biomedicine Section, Institute of Advanced Simulation IAS-5 and Institute of Neuroscience and Medicine INM-9, Forschungszentrum Jülich GmbH, 52425, Jülich, Germany
- Computational Biomedicine, Institute of Advanced Simulation IAS-5 and Institute of Neuroscience and Medicine INM-9, For-schungszentrum Jülich GmbH, 52425, Jülich, Germany
| | - Benoit de Chassey
- ENYO-Pharma, Bioserra 1, 60 Avenue Rockefeller Bâtiment B, 69008, Lyon, France
| | - Jacky Vonderscher
- ENYO-Pharma, Bioserra 1, 60 Avenue Rockefeller Bâtiment B, 69008, Lyon, France
| | - Ioav Cabantchik
- The Alexander Silberman Institute of Life Science and The Wolfson Centre for Applied Structural Biology, Faculty of Science and Mathematics, The Edmond J. Safra Campus at Givat Ram, The Hebrew University of Jerusalem, Jerusalem, 91904, Israel
| | - Paolo Carloni
- Department of Physics, RWTH Aachen University, 52074, Aachen, Germany
- Computational Biomedicine Section, Institute of Advanced Simulation IAS-5 and Institute of Neuroscience and Medicine INM-9, Forschungszentrum Jülich GmbH, 52425, Jülich, Germany
- Computational Biomedicine, Institute of Advanced Simulation IAS-5 and Institute of Neuroscience and Medicine INM-9, For-schungszentrum Jülich GmbH, 52425, Jülich, Germany
- JARA Institute: Molecular Neuroscience and Imaging, Institute of Neuroscience and Medicine INM-11, Forschungszentrum Jülich GmbH, 52425, Jülich, Germany
| | - Ron Mittler
- Department of Surgery, University of Missouri School of Medicine, and Interdisciplinary Plant Group, Christopher S. Bond Life Sciences Center, University of Missouri, 1201 Rollins St, Columbia, MO, 65211, USA
| | - Oded Livnah
- The Alexander Silberman Institute of Life Science and The Wolfson Centre for Applied Structural Biology, Faculty of Science and Mathematics, The Edmond J. Safra Campus at Givat Ram, The Hebrew University of Jerusalem, Jerusalem, 91904, Israel
| | - Eric Meldrum
- ENYO-Pharma, Bioserra 1, 60 Avenue Rockefeller Bâtiment B, 69008, Lyon, France
| | - Rachel Nechushtai
- The Alexander Silberman Institute of Life Science and The Wolfson Centre for Applied Structural Biology, Faculty of Science and Mathematics, The Edmond J. Safra Campus at Givat Ram, The Hebrew University of Jerusalem, Jerusalem, 91904, Israel.
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19
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Cardenas AE, Drexler CI, Nechushtai R, Mittler R, Friedler A, Webb LJ, Elber R. Peptide Permeation across a Phosphocholine Membrane: An Atomically Detailed Mechanism Determined through Simulations and Supported by Experimentation. J Phys Chem B 2022; 126:2834-2849. [PMID: 35388695 PMCID: PMC9074375 DOI: 10.1021/acs.jpcb.1c10966] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Cell-penetrating peptides (CPPs) facilitate translocation across biological membranes and are of significant biological and medical interest. Several CPPs can permeate into specific cells and organelles. We examine the incorporation and translocation of a novel anticancer CPP in a dioleoylphosphatidylcholine (DOPC) lipid bilayer membrane. The peptide, NAF-144-67, is a short fragment of a transmembrane protein, consisting of hydrophobic N-terminal and charged C-terminal segments. Experiments using fluorescently labeled NAF-144-67 in ∼100 nm DOPC vesicles and atomically detailed simulations conducted with Milestoning support a model in which a significant barrier for peptide-membrane entry is found at the interface between the aqueous solution and membrane. The initial step is the insertion of the N-terminal segment and the hydrophobic helix into the membrane, passing the hydrophilic head groups. Both experiments and simulations suggest that the free energy difference in the first step of the permeation mechanism in which the hydrophobic helix crosses the phospholipid head groups is -0.4 kcal mol-1 slightly favoring motion into the membrane. Milestoning calculations of the mean first passage time and the committor function underscore the existence of an early polar barrier followed by a diffusive barrierless motion in the lipid tail region. Permeation events are coupled to membrane fluctuations that are examined in detail. Our study opens the way to investigate in atomistic resolution the molecular mechanism, kinetics, and thermodynamics of CPP permeation to diverse membranes.
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Affiliation(s)
- Alfredo E. Cardenas
- Institute for Computational Engineering and Sciences, The University of Texas at Austin, Austin, TX 78712, USA
| | - Chad I. Drexler
- Department of Chemistry, The University of Texas at Austin, Austin, TX 78712, USA
| | - Rachel Nechushtai
- The Alexander Silberman Institute of Life Sciences, The Hebrew University of Jerusalem, Edmond J. Safra Campus, Givat-Ram, Jerusalem 91904, Israel
| | - Ron Mittler
- The Department of Surgery, University of Missouri School of Medicine. Christopher S. Bond Life Sciences Center, University of Missouri. 1201 Rollins St, Columbia, MO 65201, USA
| | - Assaf Friedler
- The Institute of Chemistry, The Hebrew University of Jerusalem, Edmond J. Safra Campus, Givat-Ram, Jerusalem 91904, Israel
| | - Lauren J. Webb
- Department of Chemistry, The University of Texas at Austin, Austin, TX 78712, USA
| | - Ron Elber
- Institute for Computational Engineering and Sciences, The University of Texas at Austin, Austin, TX 78712, USA
- Department of Chemistry, The University of Texas at Austin, Austin, TX 78712, USA
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20
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The Intriguing Role of Iron-Sulfur Clusters in the CIAPIN1 Protein Family. INORGANICS 2022. [DOI: 10.3390/inorganics10040052] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Iron-sulfur (Fe/S) clusters are protein cofactors that play a crucial role in essential cellular functions. Their ability to rapidly exchange electrons with several redox active acceptors makes them an efficient system for fulfilling diverse cellular needs. They include the formation of a relay for long-range electron transfer in enzymes, the biosynthesis of small molecules required for several metabolic pathways and the sensing of cellular levels of reactive oxygen or nitrogen species to activate appropriate cellular responses. An emerging family of iron-sulfur cluster binding proteins is CIAPIN1, which is characterized by a C-terminal domain of about 100 residues. This domain contains two highly conserved cysteine-rich motifs, which are both involved in Fe/S cluster binding. The CIAPIN1 proteins have been described so far to be involved in electron transfer pathways, providing electrons required for the biosynthesis of important protein cofactors, such as Fe/S clusters and the diferric-tyrosyl radical, as well as in the regulation of cell death. Here, we have first investigated the occurrence of CIAPIN1 proteins in different organisms spanning the entire tree of life. Then, we discussed the function of this family of proteins, focusing specifically on the role that the Fe/S clusters play. Finally, we describe the nature of the Fe/S clusters bound to CIAPIN1 proteins and which are the cellular pathways inserting the Fe/S clusters in the two cysteine-rich motifs.
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21
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Kung WM, Lin CC, Chen WJ, Jiang LL, Sun YY, Hsieh KH, Lin MS. Anti-Inflammatory CDGSH Iron-Sulfur Domain 2: A Biomarker of Central Nervous System Insult in Cellular, Animal Models and Patients. Biomedicines 2022; 10:biomedicines10040777. [PMID: 35453528 PMCID: PMC9030396 DOI: 10.3390/biomedicines10040777] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2022] [Revised: 03/21/2022] [Accepted: 03/22/2022] [Indexed: 02/05/2023] Open
Abstract
Spinal cord injury (SCI) promotes brain inflammation; conversely, brain injury promotes spinal neuron loss. There is a need to identify molecular biomarkers and therapeutic targets for central nervous system (CNS) injury. CDGSH iron-sulfur structural domain 2 (CISD2), an NF-κB antagonist, is downregulated after injury in vivo and in vitro. We aimed to examine the diagnostic value of CISD2 in patients with CNS insult. Plasma and cerebrospinal fluid (CSF) CISD2 levels were decreased in 13 patients with CNS insult and were negatively correlated with plasma IL6 levels (associated with disease severity; r = −0.7062; p < 0.01). SCI-induced inflammatory mediators delivered through CSF promoted mouse brain inflammation at 1 h post-SCI. Anti-CISD2 antibody treatment exacerbated SCI-induced inflammation in mouse spine and brain. Lipopolysaccharide-stimulated siCISD2-transfected EOC microglial cells exhibited proinflammatory phenotypes (enhanced M1 polarization, decreased M2 polarization, and increased intranuclear NF-κB p65 translocation). Plasma and CSF CISD2 levels were increased in three patients with CNS insult post-therapeutic hypothermia. CISD2 levels were negatively correlated with plasma and CSF levels of inflammatory mediators. CISD2 inhibition and potentiation experiments in cells, animals, and humans revealed CISD2 as a biomarker for CNS insult and upregulation of CISD2 anti-inflammatory properties as a potential therapeutic strategy for CNS insult.
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Affiliation(s)
- Woon-Man Kung
- Division of Neurosurgery, Department of Surgery, Taipei Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, New Taipei City 23142, Taiwan;
- Department of Exercise and Health Promotion, College of Kinesiology and Health, Chinese Culture University, Taipei 11114, Taiwan
| | - Chai-Ching Lin
- Department of Biotechnology and Animal Science, College of Bioresources, National Ilan University, Yilan 26047, Taiwan; (C.-C.L.); (W.-J.C.); (L.-L.J.)
| | - Wei-Jung Chen
- Department of Biotechnology and Animal Science, College of Bioresources, National Ilan University, Yilan 26047, Taiwan; (C.-C.L.); (W.-J.C.); (L.-L.J.)
| | - Li-Lin Jiang
- Department of Biotechnology and Animal Science, College of Bioresources, National Ilan University, Yilan 26047, Taiwan; (C.-C.L.); (W.-J.C.); (L.-L.J.)
| | - Yu-Yo Sun
- Institute of Biopharmaceutical Sciences, National Sun Yat-sen University, Kaohsiung 804201, Taiwan;
- Department of Neuroscience, Center for Brain Immunology and Glia (BIG), University of Virginia School of Medicine, Charlottesville, VA 22903, USA
| | - Kuang-Hui Hsieh
- Department of Laboratory Service, Kuang Tien General Hospital, Taichung 43303, Taiwan;
| | - Muh-Shi Lin
- Department of Biotechnology and Animal Science, College of Bioresources, National Ilan University, Yilan 26047, Taiwan; (C.-C.L.); (W.-J.C.); (L.-L.J.)
- Division of Neurosurgery, Department of Surgery, Kuang Tien General Hospital, Taichung 43303, Taiwan
- Department of Biotechnology, College of Medical and Health Care, Hung Kuang University, Taichung 43302, Taiwan
- Department of Health Business Administration, College of Medical and Health Care, Hung Kuang University, Taichung 43302, Taiwan
- Correspondence:
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22
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Maio N, Rouault TA. Mammalian iron sulfur cluster biogenesis: From assembly to delivery to recipient proteins with a focus on novel targets of the chaperone and co‐chaperone proteins. IUBMB Life 2022; 74:684-704. [PMID: 35080107 PMCID: PMC10118776 DOI: 10.1002/iub.2593] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2021] [Revised: 12/05/2021] [Accepted: 12/23/2021] [Indexed: 12/17/2022]
Affiliation(s)
- Nunziata Maio
- Molecular Medicine Branch Eunice Kennedy Shriver National Institute of Child Health and Human Development Bethesda Maryland USA
| | - Tracey A. Rouault
- Molecular Medicine Branch Eunice Kennedy Shriver National Institute of Child Health and Human Development Bethesda Maryland USA
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23
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Oakley K, Sterling K, Shearer J, Kim E. Controlled Protonation of [2Fe-2S] Leading to MitoNEET Analogues and Concurrent Cluster Modification. Inorg Chem 2021; 60:16074-16078. [PMID: 34672568 DOI: 10.1021/acs.inorgchem.1c02622] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
MitoNEET, a key regulatory protein in mitochondrial energy metabolism, exhibits a uniquely ligated [2Fe-2S] cluster with one histidine and three cysteines. This unique cluster has been postulated to sense the redox environment and release Fe-S cofactors under acidic pH. Reported herein is a synthetic system that shows how [2Fe-2S] clusters react with protons and rearrange their coordination geometry. The low-temperature stable, site-differentiated clusters [Fe2S2(SPh)3(CF3COO)]2- and [Fe2S2(SPh)3(py)]- have been prepared via controlled protonation below -35 °C and characterized by NMR, UV-vis, and X-ray absorption spectroscopy. Both complexes exhibit anodically shifted redox potentials compared to [Fe2S2(SPh)4]2- and convert to [Fe4S4(SPh)4]2- upon warming to room temperature. The current study provides insight into how mitoNEET releases its [2Fe-2S] in response to highly tuned acidic conditions, the chemistry of which may have further implications in Fe-S biogenesis.
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Affiliation(s)
- Kady Oakley
- Department of Chemistry, Brown University, Providence, Rhode Island 02912, United States
| | - Kevin Sterling
- Department of Chemistry, Brown University, Providence, Rhode Island 02912, United States
| | - Jason Shearer
- Department of Chemistry, Trinity University, San Antonio, Texas 78212, United States
| | - Eunsuk Kim
- Department of Chemistry, Brown University, Providence, Rhode Island 02912, United States
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24
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Marku A, Galli A, Marciani P, Dule N, Perego C, Castagna M. Iron Metabolism in Pancreatic Beta-Cell Function and Dysfunction. Cells 2021; 10:2841. [PMID: 34831062 PMCID: PMC8616520 DOI: 10.3390/cells10112841] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2021] [Revised: 10/15/2021] [Accepted: 10/19/2021] [Indexed: 12/26/2022] Open
Abstract
Iron is an essential element involved in a variety of physiological functions. In the pancreatic beta-cells, being part of Fe-S cluster proteins, it is necessary for the correct insulin synthesis and processing. In the mitochondria, as a component of the respiratory chain, it allows the production of ATP and reactive oxygen species (ROS) that trigger beta-cell depolarization and potentiate the calcium-dependent insulin release. Iron cellular content must be finely tuned to ensure the normal supply but also to prevent overloading. Indeed, due to the high reactivity with oxygen and the formation of free radicals, iron excess may cause oxidative damage of cells that are extremely vulnerable to this condition because the normal elevated ROS production and the paucity in antioxidant enzyme activities. The aim of the present review is to provide insights into the mechanisms responsible for iron homeostasis in beta-cells, describing how alteration of these processes has been related to beta-cell damage and failure. Defects in iron-storing or -chaperoning proteins have been detected in diabetic conditions; therefore, the control of iron metabolism in these cells deserves further investigation as a promising target for the development of new disease treatments.
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Affiliation(s)
| | | | | | | | - Carla Perego
- Department of Excellence Pharmacological and Biomolecular Sciences, Università degli Studi di Milano, Via Trentacoste, 22134 Milano, Italy; (A.M.); (A.G.); (P.M.); (N.D.)
| | - Michela Castagna
- Department of Excellence Pharmacological and Biomolecular Sciences, Università degli Studi di Milano, Via Trentacoste, 22134 Milano, Italy; (A.M.); (A.G.); (P.M.); (N.D.)
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25
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Zuo K, Marjault HB, Bren KL, Rossetti G, Nechushtai R, Carloni P. The two redox states of the human NEET proteins' [2Fe-2S] clusters. J Biol Inorg Chem 2021; 26:763-774. [PMID: 34453614 PMCID: PMC8463382 DOI: 10.1007/s00775-021-01890-8] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2021] [Accepted: 07/26/2021] [Indexed: 11/04/2022]
Abstract
The NEET proteins constitute a unique class of [2Fe-2S] proteins. The metal ions bind to three cysteines and one histidine. The proteins' clusters exist in two redox states; the oxidized protein (containing two FeIII ions) can transfer the cluster to apo-acceptor protein(s), while the reduced form (containing one ferrous ion) remains bound to the protein frame. Here, we perform in silico and in vitro studies on human NEET proteins in both reduced and oxidized forms. Quantum chemical calculations on all available human NEET proteins structures suggest that reducing the cluster weakens the Fe-NHis and Fe-SCys bonds, similar to what is seen in other Fe-S proteins (e.g., ferredoxin and Rieske protein). We further show that the extra electron in the [2Fe-2S]+ clusters of one of the NEET proteins (mNT) is localized on the His-bound iron ion, consistently with our previous spectroscopic studies. Kinetic measurements demonstrate that the mNT [2Fe-2S]+ is released only by an increase in temperature. Thus, the reduced state of human NEET proteins [2Fe-2S] cluster is kinetically inert. This previously unrecognized kinetic inertness of the reduced state, along with the reactivity of the oxidized state, is unique across all [2Fe-2S] proteins. Finally, using a coevolutionary analysis, along with molecular dynamics simulations, we provide insight on the observed allostery between the loop L2 and the cluster region. Specifically, we show that W75, R76, K78, K79, F82 and G85 in the latter region share similar allosteric characteristics in both redox states.
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Affiliation(s)
- Ke Zuo
- The Alexander Silberman Institute of Life Science, The Hebrew University of Jerusalem, Edmond J. Safra Campus at Givat Ram, 91904, Jerusalem, Israel
- Department of Physics, RWTH Aachen University, 52074, Aachen, Germany
| | - Henri-Baptiste Marjault
- The Alexander Silberman Institute of Life Science, The Hebrew University of Jerusalem, Edmond J. Safra Campus at Givat Ram, 91904, Jerusalem, Israel
- Department of Physics, RWTH Aachen University, 52074, Aachen, Germany
| | - Kara L Bren
- Department of Chemistry, University of Rochester, Rochester, NY, 14627-0216, USA
| | - Giulia Rossetti
- Computational Biomedicine, Institute of Advanced Simulation IAS-5 and Institute of Neuroscience and Medicine INM-9, Forschungszentrum Jülich GmbH, 52425, Jülich, Germany
- Jülich Supercomputing Center (JSC), Forschungszentrum Jülich GmbH, Jülich, Germany
- Department of Neurology, Faculty of Medicine, RWTH Aachen University, 52074, Aachen, Germany
| | - Rachel Nechushtai
- The Alexander Silberman Institute of Life Science, The Hebrew University of Jerusalem, Edmond J. Safra Campus at Givat Ram, 91904, Jerusalem, Israel.
| | - Paolo Carloni
- Department of Physics, RWTH Aachen University, 52074, Aachen, Germany.
- Computational Biomedicine, Institute of Advanced Simulation IAS-5 and Institute of Neuroscience and Medicine INM-9, Forschungszentrum Jülich GmbH, 52425, Jülich, Germany.
- JARA Institute: Molecular Neuroscience and Imaging, Institute of Neuroscience and Medicine INM-11, Forschungszentrum Jülich GmbH, 52425, Jülich, Germany.
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26
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Loncke J, Vervliet T, Parys JB, Kaasik A, Bultynck G. Uniting the divergent Wolfram syndrome-linked proteins WFS1 and CISD2 as modulators of Ca 2+ signaling. Sci Signal 2021; 14:eabc6165. [PMID: 34582248 DOI: 10.1126/scisignal.abc6165] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
[Figure: see text].
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Affiliation(s)
- Jens Loncke
- KU Leuven, Laboratory for Molecular and Cellular Signaling, Department of Cellular and Molecular Medicine, Leuven Kanker Instituut, Campus Gasthuisberg O/N-1 B-802, Herestraat 49, BE-3000 Leuven, Belgium
| | - Tim Vervliet
- KU Leuven, Laboratory for Molecular and Cellular Signaling, Department of Cellular and Molecular Medicine, Leuven Kanker Instituut, Campus Gasthuisberg O/N-1 B-802, Herestraat 49, BE-3000 Leuven, Belgium
| | - Jan B Parys
- KU Leuven, Laboratory for Molecular and Cellular Signaling, Department of Cellular and Molecular Medicine, Leuven Kanker Instituut, Campus Gasthuisberg O/N-1 B-802, Herestraat 49, BE-3000 Leuven, Belgium
| | - Allen Kaasik
- University of Tartu, Institute of Biomedicine and Translational Medicine, Department of Pharmacology, Tartu, Estonia
| | - Geert Bultynck
- KU Leuven, Laboratory for Molecular and Cellular Signaling, Department of Cellular and Molecular Medicine, Leuven Kanker Instituut, Campus Gasthuisberg O/N-1 B-802, Herestraat 49, BE-3000 Leuven, Belgium
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27
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Maio N, Lafont BAP, Sil D, Li Y, Bollinger JM, Krebs C, Pierson TC, Linehan WM, Rouault TA. Fe-S cofactors in the SARS-CoV-2 RNA-dependent RNA polymerase are potential antiviral targets. Science 2021; 373:236-241. [PMID: 34083449 PMCID: PMC8892629 DOI: 10.1126/science.abi5224] [Citation(s) in RCA: 62] [Impact Index Per Article: 20.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2021] [Accepted: 05/28/2021] [Indexed: 01/18/2023]
Abstract
Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), the causal agent of COVID-19, uses an RNA-dependent RNA polymerase (RdRp) for the replication of its genome and the transcription of its genes. We found that the catalytic subunit of the RdRp, nsp12, ligates two iron-sulfur metal cofactors in sites that were modeled as zinc centers in the available cryo-electron microscopy structures of the RdRp complex. These metal binding sites are essential for replication and for interaction with the viral helicase. Oxidation of the clusters by the stable nitroxide TEMPOL caused their disassembly, potently inhibited the RdRp, and blocked SARS-CoV-2 replication in cell culture. These iron-sulfur clusters thus serve as cofactors for the SARS-CoV-2 RdRp and are targets for therapy of COVID-19.
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Affiliation(s)
- Nunziata Maio
- Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, MD 20892, USA
| | - Bernard A P Lafont
- SARS-CoV-2 Virology Core, Laboratory of Viral Diseases, Division of Intramural Research, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20892, USA
| | - Debangsu Sil
- Department of Chemistry, The Pennsylvania State University, University Park, PA 16802, USA
| | - Yan Li
- Proteomics Core Facility, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD 20892, USA
| | - J Martin Bollinger
- Department of Chemistry, The Pennsylvania State University, University Park, PA 16802, USA.,Department of Biochemistry and Molecular Biology, The Pennsylvania State University, University Park, PA 16802, USA
| | - Carsten Krebs
- Department of Chemistry, The Pennsylvania State University, University Park, PA 16802, USA.,Department of Biochemistry and Molecular Biology, The Pennsylvania State University, University Park, PA 16802, USA
| | - Theodore C Pierson
- Laboratory of Viral Diseases, Division of Intramural Research, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20892, USA
| | - W Marston Linehan
- Urologic Oncology Branch, Center for Cancer Research, National Cancer Institute, Bethesda, MD 20892, USA
| | - Tracey A Rouault
- Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, MD 20892, USA.
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28
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Salameh M, Riquier S, Guittet O, Huang ME, Vernis L, Lepoivre M, Golinelli-Cohen MP. New Insights of the NEET Protein CISD2 Reveals Distinct Features Compared to Its Close Mitochondrial Homolog mitoNEET. Biomedicines 2021; 9:biomedicines9040384. [PMID: 33916457 PMCID: PMC8067432 DOI: 10.3390/biomedicines9040384] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2021] [Revised: 03/26/2021] [Accepted: 04/03/2021] [Indexed: 11/21/2022] Open
Abstract
Human CISD2 and mitoNEET are two NEET proteins anchored in the endoplasmic reticulum and mitochondria membranes respectively, with an Fe–S containing domain stretching out in the cytosol. Their cytosolic domains are close in sequence and structure. In the present study, combining cellular and biochemical approaches, we compared both proteins in order to possibly identify specific roles and mechanisms of action in the cell. We show that both proteins exhibit a high intrinsic stability and a sensitivity of their cluster to oxygen. In contrast, they differ in according to expression profiles in tissues and intracellular half-life. The stability of their Fe–S cluster and its ability to be transferred in vitro are affected differently by pH variations in a physiological and pathological range for cytosolic pH. Finally, we question a possible role for CISD2 in cellular Fe–S cluster trafficking. In conclusion, our work highlights unexpected major differences in the cellular and biochemical features between these two structurally close NEET proteins.
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29
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Liao HY, Liao B, Zhang HH. CISD2 plays a role in age-related diseases and cancer. Biomed Pharmacother 2021; 138:111472. [PMID: 33752060 DOI: 10.1016/j.biopha.2021.111472] [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] [Received: 11/21/2020] [Revised: 03/03/2021] [Accepted: 03/04/2021] [Indexed: 12/12/2022] Open
Abstract
CDGSH iron-sulfur domain 2 (Cisd2) is an evolutionarily conserved protein that plays an important regulatory role in aging-related diseases and cancers. Since its discovery, Cisd2 has been identified as a regulatory factor for the aging of the human body and the regulation of mammalian lifespan. Cisd2 is also an oncoprotein that regulates the occurrence and development of cancer. Cisd2 mediates the occurrence of diseases related to human aging and the proliferation, differentiation, metastasis, and invasion of various cancer cells through various mechanisms. Multiple studies have shown that Cisd2 expression is related to the clinical characteristics of aging-related diseases and patients with cancer, and its expression profile is a novel diagnostic and prognostic biomarker for a variety of human diseases. Modulating the expression or function of Cisd2 may be a potential treatment strategy for different diseases. In this review, we summarize the role of Cisd2 in human aging-related diseases and various cancers, as well as the biological functions, underlying mechanisms, and potential clinical significance.
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Affiliation(s)
- Hai-Yang Liao
- The Second Clinical Medical College of Lanzhou University, 82 Cuiying Men, Lanzhou 730030, PR China; Orthopedics Key Laboratory of Gansu Province, Lanzhou 730000, PR China.
| | - Bei Liao
- Orthopedics Key Laboratory of Gansu Province, Lanzhou 730000, PR China; The First Clinical Medical College of Lanzhou University, 1 Donggang Road, Lanzhou 730000, PR China.
| | - Hai-Hong Zhang
- The Second Clinical Medical College of Lanzhou University, 82 Cuiying Men, Lanzhou 730030, PR China; Orthopedics Key Laboratory of Gansu Province, Lanzhou 730000, PR China.
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30
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Kung WM, Lin MS. The NFκB Antagonist CDGSH Iron-Sulfur Domain 2 Is a Promising Target for the Treatment of Neurodegenerative Diseases. Int J Mol Sci 2021; 22:ijms22020934. [PMID: 33477809 PMCID: PMC7832822 DOI: 10.3390/ijms22020934] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2020] [Revised: 01/01/2021] [Accepted: 01/12/2021] [Indexed: 02/07/2023] Open
Abstract
Proinflammatory response and mitochondrial dysfunction are related to the pathogenesis of neurodegenerative diseases (NDs). Nuclear factor κB (NFκB) activation has been shown to exaggerate proinflammation and mitochondrial dysfunction, which underlies NDs. CDGSH iron-sulfur domain 2 (CISD2) has been shown to be associated with peroxisome proliferator-activated receptor-β (PPAR-β) to compete for NFκB and antagonize the two aforementioned NFκB-provoked pathogeneses. Therefore, CISD2-based strategies hold promise in the treatment of NDs. CISD2 protein belongs to the human NEET protein family and is encoded by the CISD2 gene (located at 4q24 in humans). In CISD2, the [2Fe-2S] cluster, through coordinates of 3-cysteine-1-histidine on the CDGSH domain, acts as a homeostasis regulator under environmental stress through the transfer of electrons or iron-sulfur clusters. Here, we have summarized the features of CISD2 in genetics and clinics, briefly outlined the role of CISD2 as a key physiological regulator, and presented modalities to increase CISD2 activity, including biomedical engineering or pharmacological management. Strategies to increase CISD2 activity can be beneficial for the prevention of inflammation and mitochondrial dysfunction, and thus, they can be applied in the management of NDs.
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Affiliation(s)
- Woon-Man Kung
- Department of Exercise and Health Promotion, College of Kinesiology and Health, Chinese Culture University, Taipei 11114, Taiwan;
| | - Muh-Shi Lin
- Division of Neurosurgery, Department of Surgery, Kuang Tien General Hospital, Taichung 43303, Taiwan
- Department of Biotechnology and Animal Science, College of Bioresources, National Ilan University, Yilan 26047, Taiwan
- Department of Biotechnology, College of Medical and Health Care, Hung Kuang University, Taichung 43302, Taiwan
- Department of Health Business Administration, College of Medical and Health Care, Hung Kuang University, Taichung 43302, Taiwan
- Correspondence: ; Tel.: +886-4-2665-1900
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31
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Liu G, Sil D, Maio N, Tong WH, Bollinger JM, Krebs C, Rouault TA. Heme biosynthesis depends on previously unrecognized acquisition of iron-sulfur cofactors in human amino-levulinic acid dehydratase. Nat Commun 2020; 11:6310. [PMID: 33298951 PMCID: PMC7725820 DOI: 10.1038/s41467-020-20145-9] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2020] [Accepted: 11/06/2020] [Indexed: 12/18/2022] Open
Abstract
Heme biosynthesis and iron-sulfur cluster (ISC) biogenesis are two major mammalian metabolic pathways that require iron. It has long been known that these two pathways interconnect, but the previously described interactions do not fully explain why heme biosynthesis depends on intact ISC biogenesis. Herein we identify a previously unrecognized connection between these two pathways through our discovery that human aminolevulinic acid dehydratase (ALAD), which catalyzes the second step of heme biosynthesis, is an Fe-S protein. We find that several highly conserved cysteines and an Ala306-Phe307-Arg308 motif of human ALAD are important for [Fe4S4] cluster acquisition and coordination. The enzymatic activity of human ALAD is greatly reduced upon loss of its Fe-S cluster, which results in reduced heme biosynthesis in human cells. As ALAD provides an early Fe-S-dependent checkpoint in the heme biosynthetic pathway, our findings help explain why heme biosynthesis depends on intact ISC biogenesis. Heme biosynthesis depends on iron-sulfur (Fe-S) cluster biogenesis but the molecular connection between these pathways is not fully understood. Here, the authors show that the heme biosynthesis enzyme ALAD contains an Fe-S cluster, disruption of which reduces ALAD activity and heme production in human cells.
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Affiliation(s)
- Gang Liu
- Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, MD, USA
| | - Debangsu Sil
- Department of Chemistry, The Pennsylvania State University, University Park, PA, 16802, USA
| | - Nunziata Maio
- Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, MD, USA
| | - Wing-Hang Tong
- Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, MD, USA
| | - J Martin Bollinger
- Department of Chemistry, The Pennsylvania State University, University Park, PA, 16802, USA.,Department of Biochemistry and Molecular Biology, The Pennsylvania State University, University Park, PA, 16802, USA
| | - Carsten Krebs
- Department of Chemistry, The Pennsylvania State University, University Park, PA, 16802, USA. .,Department of Biochemistry and Molecular Biology, The Pennsylvania State University, University Park, PA, 16802, USA.
| | - Tracey Ann Rouault
- Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, MD, USA.
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32
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Molino D, Pila-Castellanos I, Marjault HB, Dias Amoedo N, Kopp K, Rochin L, Karmi O, Sohn YS, Lines L, Hamaï A, Joly S, Radreau P, Vonderscher J, Codogno P, Giordano F, Machin P, Rossignol R, Meldrum E, Arnoult D, Ruggieri A, Nechushtai R, de Chassey B, Morel E. Chemical targeting of NEET proteins reveals their function in mitochondrial morphodynamics. EMBO Rep 2020; 21:e49019. [PMID: 33180995 DOI: 10.15252/embr.201949019] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2019] [Revised: 09/24/2020] [Accepted: 10/08/2020] [Indexed: 01/27/2023] Open
Abstract
Several human pathologies including neurological, cardiac, infectious, cancerous, and metabolic diseases have been associated with altered mitochondria morphodynamics. Here, we identify a small organic molecule, which we named Mito-C. Mito-C is targeted to mitochondria and rapidly provokes mitochondrial network fragmentation. Biochemical analyses reveal that Mito-C is a member of a new class of heterocyclic compounds that target the NEET protein family, previously reported to regulate mitochondrial iron and ROS homeostasis. One of the NEET proteins, NAF-1, is identified as an important regulator of mitochondria morphodynamics that facilitates recruitment of DRP1 to the ER-mitochondria interface. Consistent with the observation that certain viruses modulate mitochondrial morphogenesis as a necessary part of their replication cycle, Mito-C counteracts dengue virus-induced mitochondrial network hyperfusion and represses viral replication. The newly identified chemical class including Mito-C is of therapeutic relevance for pathologies where altered mitochondria dynamics is part of disease etiology and NEET proteins are highlighted as important therapeutic targets in anti-viral research.
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Affiliation(s)
- Diana Molino
- Institut Necker-Enfants Malades (INEM), INSERM U1151-CNRS UMR 8253, Université de Paris, Paris, France
| | - Irene Pila-Castellanos
- Institut Necker-Enfants Malades (INEM), INSERM U1151-CNRS UMR 8253, Université de Paris, Paris, France.,ENYO-Pharma, Lyon, France
| | - Henri-Baptiste Marjault
- The Alexander Silberman Institute of Life Science, The Hebrew University of Jerusalem, Jerusalem, Israel
| | | | - Katja Kopp
- Department of Infectious Diseases, Molecular Virology, Centre for Integrative Infectious Disease Research (CIID), University of Heidelberg, Heidelberg, Germany
| | - Leila Rochin
- Institute for Integrative Biology of the Cell (I2BC), CEA, CNRS, Paris-Sud University, Saclay University, Paris, Gif-sur-Yvette, France
| | - Ola Karmi
- The Alexander Silberman Institute of Life Science, The Hebrew University of Jerusalem, Jerusalem, Israel
| | - Yang-Sung Sohn
- The Alexander Silberman Institute of Life Science, The Hebrew University of Jerusalem, Jerusalem, Israel
| | | | - Ahmed Hamaï
- Institut Necker-Enfants Malades (INEM), INSERM U1151-CNRS UMR 8253, Université de Paris, Paris, France
| | | | | | | | - Patrice Codogno
- Institut Necker-Enfants Malades (INEM), INSERM U1151-CNRS UMR 8253, Université de Paris, Paris, France
| | - Francesca Giordano
- Institute for Integrative Biology of the Cell (I2BC), CEA, CNRS, Paris-Sud University, Saclay University, Paris, Gif-sur-Yvette, France
| | | | - Rodrigue Rossignol
- Cellomet, Genomic Functional Center, Bordeaux, France.,Maladies Rares: Génétique et Métabolisme (MRGM), INSERM U1211, Bordeaux, France
| | | | - Damien Arnoult
- Institut André Lwoff, INSERM UMRS1197, Hôpital Paul Brousse, Université Paris-Saclay, Villejuif, France
| | - Alessia Ruggieri
- Department of Infectious Diseases, Molecular Virology, Centre for Integrative Infectious Disease Research (CIID), University of Heidelberg, Heidelberg, Germany
| | - Rachel Nechushtai
- The Alexander Silberman Institute of Life Science, The Hebrew University of Jerusalem, Jerusalem, Israel
| | | | - Etienne Morel
- Institut Necker-Enfants Malades (INEM), INSERM U1151-CNRS UMR 8253, Université de Paris, Paris, France
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Li L, Venkataraman L, Chen S, Fu H. Function of WFS1 and WFS2 in the Central Nervous System: Implications for Wolfram Syndrome and Alzheimer's disease. Neurosci Biobehav Rev 2020; 118:775-783. [PMID: 32949681 DOI: 10.1016/j.neubiorev.2020.09.011] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2020] [Revised: 08/25/2020] [Accepted: 09/10/2020] [Indexed: 12/14/2022]
Abstract
L.P. Li, L. Venkataraman, S. Chen, and H.J. Fu. Function of WFS1 and WFS2 in the Central Nervous System: Implications for Wolfram Syndrome and Alzheimer's Disease. NEUROSCI BIOBEHAV REVXXX-XXX,2020.-Wolfram syndrome (WS) is a rare monogenetic spectrum disorder characterized by insulin-dependent juvenile-onset diabetes mellitus, diabetes insipidus, optic nerve atrophy, hearing loss, progressive neurodegeneration, and a wide spectrum of psychiatric manifestations. Most WS patients belong to Wolfram Syndrome type 1 (WS1) caused by mutations in the Wolfram Syndrome 1 (WFS1/Wolframin) gene, while a small fraction of patients belongs to Wolfram Syndrome type 2 (WS2) caused by pathogenic variants in the CDGSH Iron Sulfur Domain 2 (CISD2/WFS2) gene. Although currently there is no treatment for this life-threatening disease, the molecular mechanisms underlying the pathogenesis of WS have been proposed. Interestingly, Alzheimer's disease (AD), an age-dependent neurodegenerative disease, shares some common mechanisms with WS. In this review, we focus on the function of WFS1 and WFS2 in the central nervous system as well as their implications in WS and AD. We also propose three future directions for elucidating the role of WFS1 and WFS2 in WS and AD.
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Affiliation(s)
- Liangping Li
- Department of Neuroscience, Chronic Brain Injury, Discovery Themes, The Ohio State University, Columbus, OH, USA
| | - Lalitha Venkataraman
- Department of Neuroscience, Chronic Brain Injury, Discovery Themes, The Ohio State University, Columbus, OH, USA
| | - Shuo Chen
- Department of Neuroscience, Chronic Brain Injury, Discovery Themes, The Ohio State University, Columbus, OH, USA
| | - Hongjun Fu
- Department of Neuroscience, Chronic Brain Injury, Discovery Themes, The Ohio State University, Columbus, OH, USA.
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Tasnim H, Landry AP, Fontenot CR, Ding H. Exploring the FMN binding site in the mitochondrial outer membrane protein mitoNEET. Free Radic Biol Med 2020; 156:11-19. [PMID: 32445867 PMCID: PMC7434653 DOI: 10.1016/j.freeradbiomed.2020.05.004] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/23/2020] [Revised: 05/06/2020] [Accepted: 05/06/2020] [Indexed: 12/17/2022]
Abstract
MitoNEET is a mitochondrial outer membrane protein that hosts a redox active [2Fe-2S] cluster in the C-terminal cytosolic domain. Increasing evidence has shown that mitoNEET has an essential role in regulating energy metabolism in human cells. Previously, we reported that the [2Fe-2S] clusters in mitoNEET can be reduced by the reduced flavin mononucleotide (FMNH2) and oxidized by oxygen or ubiquinone-2, suggesting that mitoNEET may act as a novel redox enzyme catalyzing electron transfer from FMNH2 to oxygen or ubiquinone. Here, we explore the FMN binding site in mitoNEET by using FMN analogs and find that lumiflavin, like FMN, at nanomolar concentrations can mediate the redox transition of the mitoNEET [2Fe-2S] clusters in the presence of flavin reductase and NADH (100 μM) under aerobic conditions. The electron paramagnetic resonance (EPR) measurements show that both FMN and lumiflavin can dramatically change the EPR spectrum of the reduced mitoNEET [2Fe-2S] clusters and form a covalently bound complex with mitoNEET under blue light exposure, suggesting that FMN/lumiflavin has specific interactions with the [2Fe-2S] clusters in mitoNEET. In contrast, lumichrome, another FMN analog, fails to mediate the redox transition of the mitoNEET [2Fe-2S] clusters and has no effect on the EPR spectrum of the reduced mitoNEET [2Fe-2S] clusters under blue light exposure. Instead, lumichrome can effectively inhibit the FMNH2-mediated reduction of the mitoNEET [2Fe-2S] clusters, indicating that lumichrome may act as a potential inhibitor to block the electron transfer activity of mitoNEET.
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Affiliation(s)
- Homyra Tasnim
- Department of Biological Sciences, Louisiana State University, Baton Rouge, LA, 70803, USA
| | - Aaron P Landry
- Department of Biological Sciences, Louisiana State University, Baton Rouge, LA, 70803, USA
| | - Chelsey R Fontenot
- Department of Biological Sciences, Louisiana State University, Baton Rouge, LA, 70803, USA
| | - Huangen Ding
- Department of Biological Sciences, Louisiana State University, Baton Rouge, LA, 70803, USA.
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Maio N, Jain A, Rouault TA. Mammalian iron-sulfur cluster biogenesis: Recent insights into the roles of frataxin, acyl carrier protein and ATPase-mediated transfer to recipient proteins. Curr Opin Chem Biol 2020; 55:34-44. [PMID: 31918395 PMCID: PMC7237328 DOI: 10.1016/j.cbpa.2019.11.014] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2019] [Revised: 11/20/2019] [Accepted: 11/30/2019] [Indexed: 12/31/2022]
Abstract
The recently solved crystal structures of the human cysteine desulfurase NFS1, in complex with the LYR protein ISD11, the acyl carrier protein ACP, and the main scaffold ISCU, have shed light on the molecular interactions that govern initial cluster assembly on ISCU. Here, we aim to highlight recent insights into iron-sulfur (Fe-S) cluster (ISC) biogenesis in mammalian cells that have arisen from the crystal structures of the core ISC assembly complex. We will also discuss how ISCs are delivered to recipient proteins and the challenges that remain in dissecting the pathways that deliver clusters to numerous Fe-S recipient proteins in both the mitochondrial matrix and cytosolic compartments of mammalian cells.
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Affiliation(s)
- Nunziata Maio
- Molecular Medicine Branch, Eunice Kennedy Shriver National Institute of Child Health and Human Development, 9000 Rockville Pike, Bethesda, MD 20892, USA
| | - Anshika Jain
- Molecular Medicine Branch, Eunice Kennedy Shriver National Institute of Child Health and Human Development, 9000 Rockville Pike, Bethesda, MD 20892, USA
| | - Tracey A Rouault
- Molecular Medicine Branch, Eunice Kennedy Shriver National Institute of Child Health and Human Development, 9000 Rockville Pike, Bethesda, MD 20892, USA.
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36
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Outlining the Complex Pathway of Mammalian Fe-S Cluster Biogenesis. Trends Biochem Sci 2020; 45:411-426. [PMID: 32311335 DOI: 10.1016/j.tibs.2020.02.001] [Citation(s) in RCA: 82] [Impact Index Per Article: 20.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2019] [Revised: 01/27/2020] [Accepted: 02/04/2020] [Indexed: 12/14/2022]
Abstract
Iron-sulfur (Fe-S) clusters (ISCs) are ubiquitous cofactors essential to numerous fundamental cellular processes. Assembly of ISCs and their insertion into apoproteins involves the function of complex cellular machineries that operate in parallel in the mitochondrial and cytosolic/nuclear compartments of mammalian cells. The spectrum of diseases caused by inherited defects in genes that encode the Fe-S assembly proteins has recently expanded to include multiple rare human diseases, which manifest distinctive combinations and severities of global and tissue-specific impairments. In this review, we provide an overview of our understanding of ISC biogenesis in mammalian cells, discuss recent work that has shed light on the molecular interactions that govern ISC assembly, and focus on human diseases caused by failures of the biogenesis pathway.
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Pritts JD, Hursey MS, Michalek JL, Batelu S, Stemmler TL, Michel SLJ. Unraveling the RNA Binding Properties of the Iron-Sulfur Zinc Finger Protein CPSF30. Biochemistry 2020; 59:970-982. [PMID: 32027124 DOI: 10.1021/acs.biochem.9b01065] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Cleavage and polyadenylation specificity factor 30 (CPSF30) is a "zinc finger" protein that plays a crucial role in the transition of pre-mRNA to RNA. CPSF30 contains five conserved CCCH domains and a CCHC "zinc knuckle" domain. CPSF30 activity is critical for pre-mRNA processing. A truncated form of the protein, in which only the CCCH domains are present, has been shown to specifically bind AU-rich pre-mRNA targets; however, the RNA binding and recognition properties of full-length CPSF30 are not known. Herein, we report the isolation and biochemical characterization of full-length CPSF30. We report that CPSF30 contains one 2Fe-2S cluster in addition to five zinc ions, as measured by inductively coupled plasma mass spectrometry, ultraviolet-visible spectroscopy, and X-ray absorption spectroscopy. Utilizing fluorescence anisotropy RNA binding assays, we show that full-length CPSF30 has high binding affinity for two types of pre-mRNA targets, AAUAAA and polyU, both of which are conserved sequence motifs present in the majority of pre-mRNAs. Binding to the AAUAAA motif requires that the five CCCH domains of CPSF30 be present, whereas binding to polyU sequences requires the entire, full-length CPSF30. These findings implicate the CCHC "zinc knuckle" present in the full-length protein as being critical for mediating polyU binding. We also report that truncated forms of the protein, containing either just two CCCH domains (ZF2 and ZF3) or the CCHC "zinc knuckle" domain, do not exhibit any RNA binding, indicating that CPSF30/RNA binding requires several ZF (and/or Fe-S cluster) domains working in concert to mediate RNA recognition.
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Affiliation(s)
- Jordan D Pritts
- Department of Pharmaceutical Sciences, School of Pharmacy, University of Maryland, Baltimore, Maryland 21201-1180, United States
| | - Matthew S Hursey
- Department of Pharmaceutical Sciences, School of Pharmacy, University of Maryland, Baltimore, Maryland 21201-1180, United States
| | - Jamie L Michalek
- Department of Pharmaceutical Sciences, School of Pharmacy, University of Maryland, Baltimore, Maryland 21201-1180, United States
| | - Sharon Batelu
- Department of Pharmaceutical Sciences, Wayne State University, Detroit, Michigan 48201, United States
| | - Timothy L Stemmler
- Department of Pharmaceutical Sciences, Wayne State University, Detroit, Michigan 48201, United States
| | - Sarah L J Michel
- Department of Pharmaceutical Sciences, School of Pharmacy, University of Maryland, Baltimore, Maryland 21201-1180, United States
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CDGSH Iron Sulfur Domain 2 Deficiency Inhibits Cell Proliferation and Induces Cell Differentiation of Neuroblastoma. Pathol Oncol Res 2019; 26:1725-1733. [DOI: 10.1007/s12253-019-00753-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/14/2019] [Accepted: 09/15/2019] [Indexed: 02/06/2023]
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Abstract
MitoNEET (gene cisd1) is a mitochondrial outer membrane [2Fe-2S] protein and is a potential drug target in several metabolic diseases. Previous studies have demonstrated that mitoNEET functions as a redox-active and pH-sensing protein that regulates mitochondrial metabolism, although the structural basis of the potential drug binding site(s) remains elusive. Here we report the crystal structure of the soluble domain of human mitoNEET with a sulfonamide ligand, furosemide. Exploration of the high-resolution crystal structure is used to design mitoNEET binding molecules in a pilot study of molecular probes for use in future development of mitochondrial targeted therapies for a wide variety of metabolic diseases, including obesity, diabetes and neurodegenerative diseases such as Alzheimer’s and Parkinson’s disease.
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40
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Wang Y, Lee J, Ding H. Light-induced release of nitric oxide from the nitric oxide-bound CDGSH-type [2Fe-2S] clusters in mitochondrial protein Miner2. Nitric Oxide 2019; 89:96-103. [PMID: 31150776 DOI: 10.1016/j.niox.2019.05.007] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2019] [Revised: 05/17/2019] [Accepted: 05/26/2019] [Indexed: 01/06/2023]
Abstract
Human mitochondrial matrix protein Miner2 hosts two [2Fe-2S] clusters via two CDGSH (Cys-Asp-Gly-Ser-His) motifs. Unlike other iron-sulfur clusters in proteins, the reduced CDGSH-type [2Fe-2S] clusters in Miner2 are able to bind nitric oxide (NO) and form stable NO-bound [2Fe-2S] clusters without disruption of the clusters. Here we report that the NO-bound Miner2 [2Fe-2S] clusters can quickly release NO upon the visible light excitation. The UV-visible and Electron Paramagnetic Resonance (EPR) measurements show that the NO-bound Miner2 [2Fe-2S] clusters are converted to the reduced Miner2 [2Fe-2S] clusters upon the light excitation under anaerobic conditions, suggesting that NO binding in the reduced Miner2 [2Fe-2S] clusters is reversible. Additional studies reveal that binding of NO effectively inhibits the redox transition of the Miner2 [2Fe-2S] clusters, indicating that NO may modulate the physiological activity of Miner2 in mitochondria by directly binding to the CDGSH-type [2Fe-2S] clusters in the protein.
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Affiliation(s)
- Yiming Wang
- Department of Biological Sciences, Louisiana State University, Baton Rouge, LA, 70803, USA
| | - Jeonghoon Lee
- Department of Chemistry, Louisiana State University, Baton Rouge, LA, 70803, USA
| | - Huangen Ding
- Department of Biological Sciences, Louisiana State University, Baton Rouge, LA, 70803, USA.
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Mittler R, Darash-Yahana M, Sohn YS, Bai F, Song L, Cabantchik IZ, Jennings PA, Onuchic JN, Nechushtai R. NEET Proteins: A New Link Between Iron Metabolism, Reactive Oxygen Species, and Cancer. Antioxid Redox Signal 2019; 30:1083-1095. [PMID: 29463105 PMCID: PMC10625470 DOI: 10.1089/ars.2018.7502] [Citation(s) in RCA: 114] [Impact Index Per Article: 22.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/08/2018] [Revised: 02/12/2018] [Accepted: 02/20/2018] [Indexed: 12/19/2022]
Abstract
SIGNIFICANCE Cancer cells accumulate high levels of iron and reactive oxygen species (ROS) to promote their high metabolic activity and proliferation rate. However, high levels of iron and ROS can also lead to enhanced oxidative stress and the activation of cell death pathways such as apoptosis and ferroptosis. This has led to the proposal that different drugs that target iron and/or ROS metabolism could be used as anticancer drugs. However, due to the complex role iron and ROS play in cells, the majority of these drugs yielded mixed results, highlighting a critical need to identify new players in the regulation of iron and ROS homeostasis in cancer cells. Recent Advances: NEET proteins belong to a newly discovered class of iron-sulfur proteins (2Fe-2S) required for the regulation of iron and ROS homeostasis in cells. Recent studies revealed that the NEET proteins NAF-1 (CISD2) and mitoNEET (CISD1) play a critical role in promoting the proliferation of cancer cells, supporting tumor growth and metastasis. Moreover, the function of NEET proteins in cancer cells was found to be dependent of the degree of lability of their 2Fe-2S clusters. CRITICAL ISSUES NEET proteins could represent a key regulatory link between the maintenance of high iron and ROS in cancer cells, the activation of cell death and survival pathways, and cellular proliferation. FUTURE DIRECTIONS Because the function of NEET proteins depends on the lability of their clusters, drugs that target the 2Fe2S clusters of NEET proteins could be used as promising anticancer drugs.
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Affiliation(s)
- Ron Mittler
- Department of Biological Sciences, BioDiscovery Institute, University of North Texas, Denton, Texas
| | - Merav Darash-Yahana
- The Alexander Silberman Institute of Life Science, The Wolfson Institute for Applied Structural Biology, Hebrew University of Jerusalem, Jerusalem, Israel
| | - Yang Sung Sohn
- The Alexander Silberman Institute of Life Science, The Wolfson Institute for Applied Structural Biology, Hebrew University of Jerusalem, Jerusalem, Israel
| | - Fang Bai
- Departments of Physics and Astronomy, Chemistry and Biosciences, Center for Theoretical Biological Physics, Rice University, Houston, Texas
| | - Luhua Song
- Department of Biological Sciences, BioDiscovery Institute, University of North Texas, Denton, Texas
| | - Ioav Z. Cabantchik
- The Alexander Silberman Institute of Life Science, The Wolfson Institute for Applied Structural Biology, Hebrew University of Jerusalem, Jerusalem, Israel
| | - Patricia A. Jennings
- Department of Chemistry and Biochemistry, University of California at San Diego, La Jolla, California
| | - José N. Onuchic
- Departments of Physics and Astronomy, Chemistry and Biosciences, Center for Theoretical Biological Physics, Rice University, Houston, Texas
| | - Rachel Nechushtai
- The Alexander Silberman Institute of Life Science, The Wolfson Institute for Applied Structural Biology, Hebrew University of Jerusalem, Jerusalem, Israel
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42
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Geldenhuys WJ, Skolik R, Konkle ME, Menze MA, Long TE, Robart AR. Binding of thiazolidinediones to the endoplasmic reticulum protein nutrient-deprivation autophagy factor-1. Bioorg Med Chem Lett 2019; 29:901-904. [PMID: 30770154 DOI: 10.1016/j.bmcl.2019.01.041] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2018] [Revised: 01/30/2019] [Accepted: 01/31/2019] [Indexed: 01/21/2023]
Abstract
Nutrient-deprivation autophagy factor-1 (NAF-1, miner1; gene cisd2) is part of the [2Fe-2S]-containing protein family which includes mitoNEET (gene cisd1) and MiNT (miner2; gene cisd3). These proteins are redox active and are thought to play an important role in cellular energy homeostasis with NAF-1 playing a critical role in calcium regulation and aging. To date, no studies have investigated potential ligand interaction with NAF-1. Here we show that the thiazolidinediones pioglitazone and rosiglitazone along with the mitoNEET ligand, NL-1, bind to NAF-1 with low micromolar affinities. Further, we show that overexpression of NAF-1 in hepatocellular carcinoma (HepG2) cells reduces inhibition of mitochondrial respiration by pioglitazone. Our findings support the need for further efforts of the rational design of selective NAF-1 ligands.
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Affiliation(s)
- Werner J Geldenhuys
- Department of Pharmaceutical Sciences, School of Pharmacy, West Virginia University, Morgantown, WV 26506, United States; Department of Neuroscience, School of Medicine, West Virginia University, Morgantown, WV 26506, United States.
| | - Robert Skolik
- Department of Biology, University of Louisville, Louisville, KY 40229, United States
| | - Mary E Konkle
- Department of Chemistry, Ball State University, Muncie, IN 47306, United States
| | - Michael A Menze
- Department of Biology, University of Louisville, Louisville, KY 40229, United States
| | - Timothy E Long
- Department of Pharmaceutical Sciences, School of Pharmacy, Marshall University, Huntington, WV, United States
| | - Aaron R Robart
- Department of Biochemistry, School of Medicine, West Virginia University, Morgantown, WV 26506, United States.
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Iosub-Amir A, Bai F, Sohn YS, Song L, Tamir S, Marjault HB, Mayer G, Karmi O, Jennings PA, Mittler R, Onuchic JN, Friedler A, Nechushtai R. The anti-apoptotic proteins NAF-1 and iASPP interact to drive apoptosis in cancer cells. Chem Sci 2018; 10:665-673. [PMID: 30774867 PMCID: PMC6349067 DOI: 10.1039/c8sc03390k] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2018] [Accepted: 11/19/2018] [Indexed: 01/01/2023] Open
Abstract
We reveal a novel interaction between the two anti-apoptotic proteins iASPP and NAF-1, which are overexpressed in many types of cancer cells, and propose that this interaction is required for apoptosis activation in cancer cells. A peptide derived from the interaction interface inhibits apoptosis in cells.
Suppression of apoptosis is a key Hallmark of cancer cells, and reactivation of apoptosis is a major avenue for cancer therapy. We reveal an interaction between the two anti-apoptotic proteins iASPP and NAF-1, which are overexpressed in many types of cancer cells and tumors. iASPP is an inhibitory member of the ASPP protein family, whereas NAF-1 belongs to the NEET 2Fe–2S protein family. We show that the two proteins are stimulated to interact in cells during apoptosis. Using peptide array screening and computational methods we mapped the interaction interfaces of both proteins to residues 764–778 of iASPP that bind to a surface groove of NAF-1. A peptide corresponding to the iASPP 764–780 sequence stabilized the NAF-1 cluster, inhibited NAF-1 interaction with iASPP, and inhibited staurosporine-induced apoptosis activation in human breast cancer, as well as in PC-3 prostate cancer cells in which p53 is inactive. The iASPP 764–780 IC50 value for inhibition of cell death in breast cancer cells was 13 ± 1 μM. The level of cell death inhibition by iASPP 764–780 was altered in breast cancer cells expressing different levels and/or variants of NAF-1, indicating that the peptide activity is associated with NAF-1 function. We propose that the interaction between iASPP and NAF-1 is required for apoptosis activation in cancer cells. This interaction uncovers a new layer in the highly complex regulation of cell death in cancer cells and opens new avenues of exploration into the development of novel anticancer drugs that reactivate apoptosis in malignant tumors.
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Affiliation(s)
- Anat Iosub-Amir
- Institute of Chemistry , The Hebrew University of Jerusalem , Edmond J. Safra Campus at Givat Ram , Jerusalem 91904 , Israel .
| | - Fang Bai
- Center for Theoretical Biological Physics , Department of Physics , Rice University , Houston , TX 77005 , USA .
| | - Yang-Sung Sohn
- The Alexander Silberman Institute of Life Science , The Hebrew University of Jerusalem , Edmond J. Safra Campus at Givat Ram , Jerusalem 91904 , Israel .
| | - Luhua Song
- Department of Biological Sciences , University of North Texas , Denton , TX 76203 , USA
| | - Sagi Tamir
- The Alexander Silberman Institute of Life Science , The Hebrew University of Jerusalem , Edmond J. Safra Campus at Givat Ram , Jerusalem 91904 , Israel .
| | - Henri-Baptiste Marjault
- The Alexander Silberman Institute of Life Science , The Hebrew University of Jerusalem , Edmond J. Safra Campus at Givat Ram , Jerusalem 91904 , Israel .
| | - Guy Mayer
- Institute of Chemistry , The Hebrew University of Jerusalem , Edmond J. Safra Campus at Givat Ram , Jerusalem 91904 , Israel .
| | - Ola Karmi
- The Alexander Silberman Institute of Life Science , The Hebrew University of Jerusalem , Edmond J. Safra Campus at Givat Ram , Jerusalem 91904 , Israel .
| | - Patricia A Jennings
- Department of Chemistry & Biochemistry , University of California at San Diego , La Jolla , CA 92093 , USA
| | - Ron Mittler
- Department of Surgery , University of Missouri School of Medicine , Christopher S. Bond Life Sciences Center , University of Missouri , 1201 Rollins St , Columbia , MO 65201 , USA
| | - José N Onuchic
- Center for Theoretical Biological Physics , Department of Physics , Rice University , Houston , TX 77005 , USA .
| | - Assaf Friedler
- Institute of Chemistry , The Hebrew University of Jerusalem , Edmond J. Safra Campus at Givat Ram , Jerusalem 91904 , Israel .
| | - Rachel Nechushtai
- The Alexander Silberman Institute of Life Science , The Hebrew University of Jerusalem , Edmond J. Safra Campus at Givat Ram , Jerusalem 91904 , Israel .
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44
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Mons C, Botzanowski T, Nikolaev A, Hellwig P, Cianférani S, Lescop E, Bouton C, Golinelli-Cohen MP. The H2O2-Resistant Fe–S Redox Switch MitoNEET Acts as a pH Sensor To Repair Stress-Damaged Fe–S Protein. Biochemistry 2018; 57:5616-5628. [DOI: 10.1021/acs.biochem.8b00777] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Cécile Mons
- Institut de Chimie
des Substances Naturelles, CNRS UPR 2301, Univ Paris-Sud, Université
Paris-Saclay, 91198 Gif-sur-Yvette cedex, France
| | - Thomas Botzanowski
- Laboratoire de
Spectrométrie de Masse BioOrganique, Université de Strasbourg,
CNRS, IPHC UMR 7178, 67000 Strasbourg, France
| | - Anton Nikolaev
- Laboratoire de Bioélectrochimie
et Spectroscopie, UMR 7140, Chimie de la Matière Complexe,
Université de Strasbourg-CNRS, 1 rue Blaise Pascal, 67000 Strasbourg, France
| | - Petra Hellwig
- Laboratoire de Bioélectrochimie
et Spectroscopie, UMR 7140, Chimie de la Matière Complexe,
Université de Strasbourg-CNRS, 1 rue Blaise Pascal, 67000 Strasbourg, France
| | - Sarah Cianférani
- Laboratoire de
Spectrométrie de Masse BioOrganique, Université de Strasbourg,
CNRS, IPHC UMR 7178, 67000 Strasbourg, France
| | - Ewen Lescop
- Institut de Chimie
des Substances Naturelles, CNRS UPR 2301, Univ Paris-Sud, Université
Paris-Saclay, 91198 Gif-sur-Yvette cedex, France
| | - Cécile Bouton
- Institut de Chimie
des Substances Naturelles, CNRS UPR 2301, Univ Paris-Sud, Université
Paris-Saclay, 91198 Gif-sur-Yvette cedex, France
| | - Marie-Pierre Golinelli-Cohen
- Institut de Chimie
des Substances Naturelles, CNRS UPR 2301, Univ Paris-Sud, Université
Paris-Saclay, 91198 Gif-sur-Yvette cedex, France
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45
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Li X, Wang Y, Tan G, Lyu J, Ding H. Electron transfer kinetics of the mitochondrial outer membrane protein mitoNEET. Free Radic Biol Med 2018; 121:98-104. [PMID: 29704621 DOI: 10.1016/j.freeradbiomed.2018.04.569] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/14/2018] [Accepted: 04/21/2018] [Indexed: 12/16/2022]
Abstract
Increasing evidence suggests that the mitochondrial outer membrane protein mitoNEET is a key regulator of energy metabolism, iron homeostasis, and production of reactive oxygen species in mitochondria. Previously, we reported that mitoNEET is a redox enzyme that catalyzes electron transfer from the reduced flavin mononucleotide (FMNH2) to oxygen or ubiquinone via its unique [2Fe-2S] clusters. Here, we explore the reduction and oxidation kinetics of the mitoNEET [2Fe-2S] clusters under anaerobic and aerobic conditions. We find that the mitoNEET [2Fe-2S] clusters are rapidly reduced by a catalytic amount of FMNH2 which is reduced by flavin reductase and an equivalent amount of NADH under anaerobic conditions. When the reduced mitoNEET [2Fe-2S] clusters are exposed to air, the [2Fe-2S] clusters are slowly oxidized by oxygen at a rate constant of about 6.0 M-1 s-1. Compared with oxygen, ubiquinone-2 has a much higher activity to oxidize the reduced mitoNEET [2Fe-2S] clusters at a rate constant of about 3.0 × 103 M-1 s-1 under anaerobic conditions. Under aerobic conditions, the mitoNEET [2Fe-2S] clusters can still be reduced by FMNH2 in the presence of flavin reductase and excess NADH. However, when NADH is completely consumed, the reduced mitoNEET [2Fe-2S] clusters are gradually oxidized by oxygen. Addition of ubiquinone-2 also rapidly oxidizes the pre-reduced mitoNEET [2Fe-2S] clusters and effectively prevents the FMNH2-mediated reduction of the mitoNEET [2Fe-2S] clusters under aerobic conditions. The results suggest that ubiquinone may act as an intrinsic oxidant of the reduced mitoNEET [2Fe-2S] clusters in mitochondria under aerobic and anaerobic conditions.
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Affiliation(s)
- Xiaokang Li
- 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
| | - Yiming Wang
- Department of Biological Sciences, Louisiana State University, Baton Rouge, LA 70803, USA
| | - Guoqiang Tan
- Laboratory of Molecular Medicine, School of Laboratory Medicine and Life Science, Wenzhou Medical University, Wenzhou, Zhejiang, 325035, China
| | - Jianxin Lyu
- Laboratory of Molecular Medicine, School of Laboratory Medicine and Life Science, Wenzhou Medical University, Wenzhou, Zhejiang, 325035, China.
| | - Huangen Ding
- Department of Biological Sciences, Louisiana State University, Baton Rouge, LA 70803, USA.
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Abstract
From the very first discovery of biological iron-sulfur clusters with EPR, the spectroscopy has been used to study not only purified proteins but also complex systems such as respiratory complexes, membrane particles and, later, whole cells. In recent times, the emphasis of iron-sulfur biochemistry has moved from characterization of individual proteins to the systems biology of iron-sulfur biosynthesis, regulation, degradation, and implications for human health. Although this move would suggest a blossoming of System-EPR as a specific, non-invasive monitor of Fe/S (dys)homeostasis in whole cells, a review of the literature reveals limited success possibly due to technical difficulties in adherence to EPR spectroscopic and biochemical standards. In an attempt to boost application of System-EPR the required boundary conditions and their practical applications are explicitly and comprehensively formulated.
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Affiliation(s)
- Wilfred R Hagen
- Department of Biotechnology, Delft University of Technology, Van der Maasweg 9, 2629HZ, Delft, The Netherlands.
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You M, Zhou Z, Daniels M, Jogasuria A. Endocrine Adiponectin-FGF15/19 Axis in Ethanol-Induced Inflammation and Alcoholic Liver Injury. Gene Expr 2018; 18:103-113. [PMID: 29096734 PMCID: PMC5953845 DOI: 10.3727/105221617x15093738210295] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Alcoholic liver disease (ALD) is the most prevalent form of liver disease, encompassing a spectrum of progressive pathological changes from steatosis to steatohepatitis to fibrosis/cirrhosis and hepatocellular carcinoma. Alcoholic steatosis/steatohepatitis is the initial stage of ALD and a major risk factor for advanced liver injuries. Adiponectin is a hormone secreted from adipocytes. Fibroblast growth factor (FGF) 15 (human homolog, FGF19) is an ileum-derived hormone. Adipocyte-derived adiponectin and gut-derived FGF15/19 regulate each other, share common signaling cascades, and exert similar beneficial functions. Emerging evidence has revealed that dysregulated adiponectin-FGF15/19 axis and impaired hepatic adiponectin-FGF15/19 signaling are associated with alcoholic liver damage in rodents and humans. More importantly, endocrine adiponectin-FGF15/19 signaling confers protection against ethanol-induced liver damage via fine tuning the adipose-intestine-liver crosstalk, leading to limited hepatic inflammatory responses, and ameliorated alcoholic liver injury. This review is focused on the recently discovered endocrine adiponectin-FGF15/19 axis that is emerging as an essential adipose-gut-liver coordinator involved in the development and progression of alcoholic steatohepatitis.
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Affiliation(s)
- Min You
- Department of Pharmaceutical Sciences, College of Pharmacy, Northeast Ohio Medical University, Rootstown, OH, USA
| | - Zhou Zhou
- Department of Pharmaceutical Sciences, College of Pharmacy, Northeast Ohio Medical University, Rootstown, OH, USA
| | - Michael Daniels
- Department of Pharmaceutical Sciences, College of Pharmacy, Northeast Ohio Medical University, Rootstown, OH, USA
| | - Alvin Jogasuria
- Department of Pharmaceutical Sciences, College of Pharmacy, Northeast Ohio Medical University, Rootstown, OH, USA
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The unique fold and lability of the [2Fe-2S] clusters of NEET proteins mediate their key functions in health and disease. J Biol Inorg Chem 2018; 23:599-612. [PMID: 29435647 PMCID: PMC6006223 DOI: 10.1007/s00775-018-1538-8] [Citation(s) in RCA: 48] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2017] [Accepted: 01/26/2018] [Indexed: 02/08/2023]
Abstract
NEET proteins comprise a new class of [2Fe-2S] cluster proteins. In human, three genes encode for NEET proteins: cisd1 encodes mitoNEET (mNT), cisd2 encodes the Nutrient-deprivation autophagy factor-1 (NAF-1) and cisd3 encodes MiNT (Miner2). These recently discovered proteins play key roles in many processes related to normal metabolism and disease. Indeed, NEET proteins are involved in iron, Fe-S, and reactive oxygen homeostasis in cells and play an important role in regulating apoptosis and autophagy. mNT and NAF-1 are homodimeric and reside on the outer mitochondrial membrane. NAF-1 also resides in the membranes of the ER associated mitochondrial membranes (MAM) and the ER. MiNT is a monomer with distinct asymmetry in the molecular surfaces surrounding the clusters. Unlike its paralogs mNT and NAF-1, it resides within the mitochondria. NAF-1 and mNT share similar backbone folds to the plant homodimeric NEET protein (At-NEET), while MiNT's backbone fold resembles a bacterial MiNT protein. Despite the variation of amino acid composition among these proteins, all NEET proteins retained their unique CDGSH domain harboring their unique 3Cys:1His [2Fe-2S] cluster coordination through evolution. The coordinating exposed His was shown to convey the lability to the NEET proteins' [2Fe-2S] clusters. In this minireview, we discuss the NEET fold and its structural elements. Special attention is given to the unique lability of the NEETs' [2Fe-2S] cluster and the implication of the latter to the NEET proteins' cellular and systemic function in health and disease.
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Structure of the human monomeric NEET protein MiNT and its role in regulating iron and reactive oxygen species in cancer cells. Proc Natl Acad Sci U S A 2017; 115:272-277. [PMID: 29259115 DOI: 10.1073/pnas.1715842115] [Citation(s) in RCA: 53] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023] Open
Abstract
The NEET family is a relatively new class of three related [2Fe-2S] proteins (CISD1-3), important in human health and disease. While there has been growing interest in the homodimeric gene products of CISD1 (mitoNEET) and CISD2 (NAF-1), the importance of the inner mitochondrial CISD3 protein has only recently been recognized in cancer. The CISD3 gene encodes for a monomeric protein that contains two [2Fe-2S] CDGSH motifs, which we term mitochondrial inner NEET protein (MiNT). It folds with a pseudosymmetrical fold that provides a hydrophobic motif on one side and a relatively hydrophilic surface on the diametrically opposed surface. Interestingly, as shown by molecular dynamics simulation, the protein displays distinct asymmetrical backbone motions, unlike its homodimeric counterparts that face the cytosolic side of the outer mitochondrial membrane/endoplasmic reticulum (ER). However, like its counterparts, our biological studies indicate that knockdown of MiNT leads to increased accumulation of mitochondrial labile iron, as well as increased mitochondrial reactive oxygen production. Taken together, our study suggests that the MiNT protein functions in the same pathway as its homodimeric counterparts (mitoNEET and NAF-1), and could be a key player in this pathway within the mitochondria. As such, it represents a target for anticancer or antidiabetic drug development.
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