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Liu X, Zhu J, Zhang Q, Hu H, Zhang W, Xu H, Huang Y, Xie J, Liu H, Feng Y, Li J, Jia C. Multifunctional fluorescent probe for simultaneous revealing Cys and ONOO - dynamic correlation in the ferroptosis. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2024; 315:124248. [PMID: 38599026 DOI: 10.1016/j.saa.2024.124248] [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: 01/30/2024] [Revised: 03/29/2024] [Accepted: 04/02/2024] [Indexed: 04/12/2024]
Abstract
Ferroptosis is a type of lipid peroxidation-induced apoptosis brought on by imbalances in iron metabolism and redox. It involves both the thiol-associated anti-ferroptosis pathway and the excessive buildup of reactive oxygen species (ROS), which stimulates the ferroptosis pathway. Determining the precise control mechanism of ferroptosis requires examining the dynamic connection between reactive sulfur species (RSS) and ROS. Cysteine (Cys) and peroxynitrite (ONOO-) are highly active redox species in organisms and play dynamic roles in the ferroptosis process. In this study, a coumarin dye was conjugated with specific response sites for Cys and ONOO-, enabling the simultaneous detection of Cys and ONOO- through the green and red fluorescence channels, respectively (λem = 498 nm for Cys and λem = 565 nm for ONOO-). Using the probe LXB, we monitored the changes in Cys and ONOO- levels in the ferroptosis pathway induced by erastin. The results demonstrate a significant generation of ONOO- and a noticeable decrease in intracellular Cys levels at the beginning upon erastin treatment and finally maintains a relatively low level. This study presents the first probe to investigate the intracellular redox modulation and control between Cys and ONOO- during ferroptosis, providing valuable insights into the potential mutual correlation between Cys and ONOO- in this process.
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Affiliation(s)
- Xiongbo Liu
- Hainan Provincial Key Laboratory of Fine Chem, School of Chemistry and Chemical Engineering, Hainan University, Haikou 570228, China
| | - Jiali Zhu
- Hainan Provincial Key Laboratory of Fine Chem, School of Chemistry and Chemical Engineering, Hainan University, Haikou 570228, China
| | - Qiangsheng Zhang
- Hainan Provincial Key Laboratory of Fine Chem, School of Chemistry and Chemical Engineering, Hainan University, Haikou 570228, China; One Health Institute, Hainan University, Haikou 570228, China
| | - Hao Hu
- Hainan Provincial Key Laboratory of Fine Chem, School of Chemistry and Chemical Engineering, Hainan University, Haikou 570228, China
| | - Wei Zhang
- Key Laboratory of Hainan Trauma and Disaster Rescue, The First Affiliated Hospital of Hainan Medical University, Hainan Medical University, Haikou, 571199 China
| | - Hui Xu
- Institute for Energy Research, School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Yan Huang
- School of Chemistry and Chemical Engineering, Jiangsu University, Jiangsu 212013, China
| | - Jialin Xie
- Hainan Provincial Key Laboratory of Fine Chem, School of Chemistry and Chemical Engineering, Hainan University, Haikou 570228, China; One Health Institute, Hainan University, Haikou 570228, China
| | - Hongtao Liu
- Hainan Provincial Key Laboratory of Fine Chem, School of Chemistry and Chemical Engineering, Hainan University, Haikou 570228, China; One Health Institute, Hainan University, Haikou 570228, China
| | - Yan Feng
- Hainan Provincial Key Laboratory of Fine Chem, School of Chemistry and Chemical Engineering, Hainan University, Haikou 570228, China; One Health Institute, Hainan University, Haikou 570228, China.
| | - Jianwei Li
- MediCity Research Laboratory, University of Turku, Tykistökatu 6, Turku, 20520, Finland.
| | - Chunman Jia
- Hainan Provincial Key Laboratory of Fine Chem, School of Chemistry and Chemical Engineering, Hainan University, Haikou 570228, China; Analysis and Testing Center, Hainan University, Haikou 570228, China; One Health Institute, Hainan University, Haikou 570228, China.
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2
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Bi S, Wen X, Wu Z, Wang C, Huang H, Liu Z, Zeng S. Rational Design of Activatable Lanthanide NIR-IIb Emissive Nanoprobe for In Situ Specific Imaging of HOCl In Vivo. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024:e2400883. [PMID: 38881331 DOI: 10.1002/smll.202400883] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/02/2024] [Revised: 04/28/2024] [Indexed: 06/18/2024]
Abstract
Hypochlorous acid (HOCl), as an indispensable signaling molecule in organisms, is one of the key members of reactive oxygen species (ROS). However, in vivo, real-time dynamic near-infrared fluorescence imaging of HOCl levels in the 1400-1700 nm sub-window (NIR-IIb) remains a major challenge due to the lack of suitable detection methods. Herein, a general design of HOCl-responsive NIR-IIb fluorescence nanoprobe is proposed by integrating NaLuF4Yb/Er@NaLuF4 downshift nanoparticles (DSNPs) and HOCl recognition/NIR-IIb emissive modulation unit of M2-xS (M = Cu, Co, Pb) nanodots for real-time monitoring of HOCl levels. The fluorescence modulation unit of M2-xS nanodots presents remarkably enhanced absorption than Yb sensitizer at 980 nm and greatly inhibits the NIR-IIb fluorescence emission via competitive absorption mechanism. While, the M2-xS nanodots are easily degraded after triggering by HOCl, resulting in HOCl responsive turn-on (≈ten folds) NIR-IIb emission at 1532 nm. More importantly, in vivo highly precise and specific monitoring of inflammatory with abnormal HOCl expression is successfully achieved. Thus, the explored competitive absorption mediated quenching-activation mechanism provides a new general strategy of designing HOCl-responsive NIR-IIb fluorescence nanoprobe for highly specific and sensitive HOCl detection.
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Affiliation(s)
- Shenghui Bi
- School of Physics and Electronics, Key Laboratory of Low-dimensional Quantum Structures and Quantum Control of the Ministry of Education, Synergetic Innovation Center for Quantum Effects and Applications, Key Laboratory for Matter Microstructure and Function of Hunan Province, Institute of Interdisciplinary Studies, Hunan Normal University, Changsha, Hunan, 410081, China
| | - Xingwang Wen
- School of Physics and Electronics, Key Laboratory of Low-dimensional Quantum Structures and Quantum Control of the Ministry of Education, Synergetic Innovation Center for Quantum Effects and Applications, Key Laboratory for Matter Microstructure and Function of Hunan Province, Institute of Interdisciplinary Studies, Hunan Normal University, Changsha, Hunan, 410081, China
| | - Zezheng Wu
- School of Physics and Electronics, Key Laboratory of Low-dimensional Quantum Structures and Quantum Control of the Ministry of Education, Synergetic Innovation Center for Quantum Effects and Applications, Key Laboratory for Matter Microstructure and Function of Hunan Province, Institute of Interdisciplinary Studies, Hunan Normal University, Changsha, Hunan, 410081, China
| | - Chunxia Wang
- School of Physics and Electronics, Key Laboratory of Low-dimensional Quantum Structures and Quantum Control of the Ministry of Education, Synergetic Innovation Center for Quantum Effects and Applications, Key Laboratory for Matter Microstructure and Function of Hunan Province, Institute of Interdisciplinary Studies, Hunan Normal University, Changsha, Hunan, 410081, China
| | - Hao Huang
- School of Physics and Electronics, Key Laboratory of Low-dimensional Quantum Structures and Quantum Control of the Ministry of Education, Synergetic Innovation Center for Quantum Effects and Applications, Key Laboratory for Matter Microstructure and Function of Hunan Province, Institute of Interdisciplinary Studies, Hunan Normal University, Changsha, Hunan, 410081, China
| | - Zhiqiu Liu
- School of Physics and Electronics, Key Laboratory of Low-dimensional Quantum Structures and Quantum Control of the Ministry of Education, Synergetic Innovation Center for Quantum Effects and Applications, Key Laboratory for Matter Microstructure and Function of Hunan Province, Institute of Interdisciplinary Studies, Hunan Normal University, Changsha, Hunan, 410081, China
| | - Songjun Zeng
- School of Physics and Electronics, Key Laboratory of Low-dimensional Quantum Structures and Quantum Control of the Ministry of Education, Synergetic Innovation Center for Quantum Effects and Applications, Key Laboratory for Matter Microstructure and Function of Hunan Province, Institute of Interdisciplinary Studies, Hunan Normal University, Changsha, Hunan, 410081, China
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3
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Amich J. The many roles of sulfur in the fungal-host interaction. Curr Opin Microbiol 2024; 79:102489. [PMID: 38754292 DOI: 10.1016/j.mib.2024.102489] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2024] [Revised: 04/30/2024] [Accepted: 04/30/2024] [Indexed: 05/18/2024]
Abstract
Sulfur is an essential macronutrient for life, and consequently, all living organisms must acquire it from external sources to thrive and grow. Sulfur is a constituent of a multitude of crucial molecules, such as the S-containing proteinogenic amino acids cysteine and methionine; cofactors and prosthetic groups, such as coenzyme-A and iron-sulfur (Fe-S) clusters; and other essential organic molecules, such as glutathione or S-adenosylmethionine. Additionally, sulfur in cysteine thiols is an active redox group that plays paramount roles in protein stability, enzyme catalysis, and redox homeostasis. Furthermore, H2S is gaining more attention as a crucial signaling molecule that influences metabolism and physiological functions. Given its importance, it is not surprising that sulfur plays key roles in the host-pathogen interaction. However, in contrast to its well-recognized involvement in the plant-pathogen interaction, the specific contributions of sulfur to the human-fungal interaction are much less understood. In this short review, I highlight some of the most important known mechanisms and propose directions for further research.
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Affiliation(s)
- Jorge Amich
- Mycology Reference Laboratory (Laboratorio de Referencia e Investigación en Micología [LRIM]), National Centre for Microbiology, Instituto de Salud Carlos III (ISCIII), Majadahonda, Madrid, Spain.
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4
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Lamontagne F, Paz-Trejo C, Zamorano Cuervo N, Grandvaux N. Redox signaling in cell fate: Beyond damage. BIOCHIMICA ET BIOPHYSICA ACTA. MOLECULAR CELL RESEARCH 2024; 1871:119722. [PMID: 38615720 DOI: 10.1016/j.bbamcr.2024.119722] [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: 12/18/2023] [Revised: 02/20/2024] [Accepted: 04/02/2024] [Indexed: 04/16/2024]
Abstract
This review explores the nuanced role of reactive oxygen species (ROS) in cell fate, challenging the traditional view that equates ROS with cellular damage. Through significant technological advancements in detecting localized redox states and identifying oxidized cysteines, a paradigm shift has emerged: from ROS as merely damaging agents to crucial players in redox signaling. We delve into the intricacies of redox mechanisms, which, although confined, exert profound influences on cellular physiological responses. Our analysis extends to both the positive and negative impacts of these mechanisms on cell death processes, including uncontrolled and programmed pathways. By unraveling these complex interactions, we argue against the oversimplified notion of a 'stress response', advocating for a more nuanced understanding of redox signaling. This review underscores the importance of localized redox states in determining cell fate, highlighting the sophistication and subtlety of ROS functions beyond mere damage.
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Affiliation(s)
- Felix Lamontagne
- CRCHUM - Centre de Recherche du Centre Hospitalier de l'Université de Montréal, 900 rue Saint Denis, Montréal H2X 0A9, Québec, Canada
| | - Cynthia Paz-Trejo
- CRCHUM - Centre de Recherche du Centre Hospitalier de l'Université de Montréal, 900 rue Saint Denis, Montréal H2X 0A9, Québec, Canada; Department of Biochemistry and Molecular Medicine, Faculty of Medicine, Université de Montréal, Montréal H3C 3J7, Québec, Canada
| | - Natalia Zamorano Cuervo
- CRCHUM - Centre de Recherche du Centre Hospitalier de l'Université de Montréal, 900 rue Saint Denis, Montréal H2X 0A9, Québec, Canada
| | - Nathalie Grandvaux
- CRCHUM - Centre de Recherche du Centre Hospitalier de l'Université de Montréal, 900 rue Saint Denis, Montréal H2X 0A9, Québec, Canada; Department of Biochemistry and Molecular Medicine, Faculty of Medicine, Université de Montréal, Montréal H3C 3J7, Québec, Canada.
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5
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Anjo SI, He Z, Hussain Z, Farooq A, McIntyre A, Laughton CA, Carvalho AN, Finelli MJ. Protein Oxidative Modifications in Neurodegenerative Diseases: From Advances in Detection and Modelling to Their Use as Disease Biomarkers. Antioxidants (Basel) 2024; 13:681. [PMID: 38929122 PMCID: PMC11200609 DOI: 10.3390/antiox13060681] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2024] [Revised: 05/26/2024] [Accepted: 05/29/2024] [Indexed: 06/28/2024] Open
Abstract
Oxidation-reduction post-translational modifications (redox-PTMs) are chemical alterations to amino acids of proteins. Redox-PTMs participate in the regulation of protein conformation, localization and function, acting as signalling effectors that impact many essential biochemical processes in the cells. Crucially, the dysregulation of redox-PTMs of proteins has been implicated in the pathophysiology of numerous human diseases, including neurodegenerative diseases such as Alzheimer's disease and Parkinson's disease. This review aims to highlight the current gaps in knowledge in the field of redox-PTMs biology and to explore new methodological advances in proteomics and computational modelling that will pave the way for a better understanding of the role and therapeutic potential of redox-PTMs of proteins in neurodegenerative diseases. Here, we summarize the main types of redox-PTMs of proteins while providing examples of their occurrence in neurodegenerative diseases and an overview of the state-of-the-art methods used for their detection. We explore the potential of novel computational modelling approaches as essential tools to obtain insights into the precise role of redox-PTMs in regulating protein structure and function. We also discuss the complex crosstalk between various PTMs that occur in living cells. Finally, we argue that redox-PTMs of proteins could be used in the future as diagnosis and prognosis biomarkers for neurodegenerative diseases.
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Affiliation(s)
- Sandra I. Anjo
- CNC-Center for Neurosciences and Cell Biology, University of Coimbra, 3004-517 Coimbra, Portugal
- Centre for Innovative Biomedicine and Biotechnology (CIBB), University of Coimbra, 3004-517 Coimbra, Portugal
- Institute for Interdisciplinary Research (IIIUC), University of Coimbra, 3030-789 Coimbra, Portugal
| | - Zhicheng He
- Biodiscovery Institute, School of Pharmacy, University of Nottingham, Nottingham NG7 2RD, UK
| | - Zohaib Hussain
- Biodiscovery Institute, School of Medicine, University of Nottingham, Nottingham NG7 2RD, UK
| | - Aruba Farooq
- Biodiscovery Institute, School of Medicine, University of Nottingham, Nottingham NG7 2RD, UK
| | - Alan McIntyre
- Biodiscovery Institute, School of Medicine, University of Nottingham, Nottingham NG7 2RD, UK
| | - Charles A. Laughton
- Biodiscovery Institute, School of Pharmacy, University of Nottingham, Nottingham NG7 2RD, UK
| | - Andreia Neves Carvalho
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, 1649-003 Lisbon, Portugal
- Department of Pharmaceutical Sciences and Medicines, Faculty of Pharmacy, Universidade de Lisboa, 1649-003 Lisbon, Portugal
| | - Mattéa J. Finelli
- Biodiscovery Institute, School of Medicine, University of Nottingham, Nottingham NG7 2RD, UK
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Wang L, Sivakumar A, Zhang R, Cho S, Kim Y, Aggarwal T, Wang L, Izgu EC. Benzylic Trifluoromethyl Accelerates 1,6-Elimination Toward Rapid Probe Activation. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.05.30.596105. [PMID: 38854154 PMCID: PMC11160802 DOI: 10.1101/2024.05.30.596105] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2024]
Abstract
Activity-based detection of hydrogen sulfide in live cells can expand our understanding of its reactivity and complex physiological effects. We have discovered a highly efficient method for fluorescent probe activation, which is driven by H2S-triggered 1,6-elimination of an α-CF3-benzyl to release resorufin. In detecting intracellular H2S, 4-azido-(α-CF3)-benzyl resorufin offers significantly faster signal generation and improved sensitivity compared to 4-azidobenzyl resorufin. Computed free energy profiles for the 1,6-elimination process support the hypothesis that a benzylic CF3 group can reduce the activation energy barrier toward probe activation. This novel probe design allows for near-real-time detection of H2S in HeLa cells under stimulation conditions.
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Affiliation(s)
- Liming Wang
- Department of Chemistry and Chemical Biology, Rutgers University–New Brunswick, Piscataway, NJ 08854, USA
| | - Aditya Sivakumar
- Department of Chemistry and Chemical Biology, Rutgers University–New Brunswick, Piscataway, NJ 08854, USA
| | - Rui Zhang
- Department of Chemistry and Chemical Biology, Rutgers University–New Brunswick, Piscataway, NJ 08854, USA
| | - Sarah Cho
- Department of Chemistry and Chemical Biology, Rutgers University–New Brunswick, Piscataway, NJ 08854, USA
| | - Yuhyun Kim
- Department of Chemistry and Chemical Biology, Rutgers University–New Brunswick, Piscataway, NJ 08854, USA
| | - Tushar Aggarwal
- Department of Chemistry and Chemical Biology, Rutgers University–New Brunswick, Piscataway, NJ 08854, USA
| | - Lu Wang
- Department of Chemistry and Chemical Biology, Rutgers University–New Brunswick, Piscataway, NJ 08854, USA
- Institute for Quantitative Biomedicine, Rutgers University–New Brunswick, Piscataway, NJ 08854, USA
| | - Enver Cagri Izgu
- Department of Chemistry and Chemical Biology, Rutgers University–New Brunswick, Piscataway, NJ 08854, USA
- Cancer Institute of New Jersey, Rutgers University, New Brunswick, NJ 08901, USA
- Rutgers Center for Lipid Research, New Jersey Institute for Food, Nutrition, and Health, Rutgers University–New Brunswick, New Brunswick, NJ 08901, USA
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7
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Erguven H, Wang L, Gutierrez B, Beaven AH, Sodt AJ, Izgu EC. Biomimetic Vesicles with Designer Phospholipids Can Sense Environmental Redox Cues. JACS AU 2024; 4:1841-1853. [PMID: 38818047 PMCID: PMC11134385 DOI: 10.1021/jacsau.4c00041] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/09/2024] [Revised: 03/06/2024] [Accepted: 03/26/2024] [Indexed: 06/01/2024]
Abstract
Cell-like materials that sense environmental cues can serve as next-generation biosensors and help advance the understanding of intercellular communication. Currently, bottom-up engineering of protocell models from molecular building blocks remains a grand challenge chemists face. Herein, we describe giant unilamellar vesicles (GUVs) with biomimetic lipid membranes capable of sensing environmental redox cues. The GUVs employ activity-based sensing through designer phospholipids that are fluorescently activated in response to specific reductive (hydrogen sulfide) or oxidative (hydrogen peroxide) conditions. These synthetic phospholipids are derived from 1,2-dipalmitoyl-rac-glycero-3-phosphocholine and they possess a headgroup with heterocyclic aromatic motifs. Despite their structural deviation from the phosphocholine headgroup, the designer phospholipids (0.5-1.0 mol %) mixed with natural lipids can vesiculate, and the resulting GUVs (7-20 μm in diameter) remain intact over the course of redox sensing. All-atom molecular dynamics simulations gave insight into how these lipids are positioned within the hydrophobic core of the membrane bilayer and at the membrane-water interface. This work provides a purely chemical method to investigate potential redox signaling and opens up new design opportunities for soft materials that mimic protocells.
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Affiliation(s)
- Huseyin Erguven
- Department
of Chemistry and Chemical Biology, Rutgers
University, New Brunswick, New Jersey 08854, United States
| | - Liming Wang
- Department
of Chemistry and Chemical Biology, Rutgers
University, New Brunswick, New Jersey 08854, United States
| | - Bryan Gutierrez
- Department
of Chemistry and Chemical Biology, Rutgers
University, New Brunswick, New Jersey 08854, United States
| | - Andrew H. Beaven
- Unit
on Membrane Chemical Physics, Eunice Kennedy Shriver National Institute
of Child Health and Human Development, National
Institutes of Health, Bethesda, Maryland 20892, United States
- Postdoctoral
Research Associate Program, National Institute
of General Medical Sciences, National Institutes of Health, Bethesda, Maryland 20892, United States
| | - Alexander J. Sodt
- Unit
on Membrane Chemical Physics, Eunice Kennedy Shriver National Institute
of Child Health and Human Development, National
Institutes of Health, Bethesda, Maryland 20892, United States
| | - Enver Cagri Izgu
- Department
of Chemistry and Chemical Biology, Rutgers
University, New Brunswick, New Jersey 08854, United States
- Cancer
Institute of New Jersey, Rutgers University, New Brunswick, New Jersey 08901, United States
- Rutgers
Center for Lipid Research, New Jersey Institute
for Food, Nutrition, and Health, Rutgers University, New Brunswick, New Jersey 08901, United States
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8
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Hillebrand L, Liang XJ, Serafim RAM, Gehringer M. Emerging and Re-emerging Warheads for Targeted Covalent Inhibitors: An Update. J Med Chem 2024; 67:7668-7758. [PMID: 38711345 DOI: 10.1021/acs.jmedchem.3c01825] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/08/2024]
Abstract
Covalent inhibitors and other types of covalent modalities have seen a revival in the past two decades, with a variety of new targeted covalent drugs having been approved in recent years. A key feature of such molecules is an intrinsically reactive group, typically a weak electrophile, which enables the irreversible or reversible formation of a covalent bond with a specific amino acid of the target protein. This reactive group, often called the "warhead", is a critical determinant of the ligand's activity, selectivity, and general biological properties. In 2019, we summarized emerging and re-emerging warhead chemistries to target cysteine and other amino acids (Gehringer, M.; Laufer, S. A. J. Med. Chem. 2019, 62, 5673-5724; DOI: 10.1021/acs.jmedchem.8b01153). Since then, the field has rapidly evolved. Here we discuss the progress on covalent warheads made since our last Perspective and their application in medicinal chemistry and chemical biology.
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Affiliation(s)
- Laura Hillebrand
- Department of Pharmaceutical/Medicinal Chemistry, Eberhard Karls University Tübingen, Auf der Morgenstelle 8, 72076 Tübingen, Germany
| | - Xiaojun Julia Liang
- Department of Pharmaceutical/Medicinal Chemistry, Eberhard Karls University Tübingen, Auf der Morgenstelle 8, 72076 Tübingen, Germany
- Cluster of Excellence iFIT (EXC 2180) "Image-Guided & Functionally Instructed Tumor Therapies", University of Tübingen, 72076 Tübingen, Germany
| | - Ricardo A M Serafim
- Department of Pharmaceutical/Medicinal Chemistry, Eberhard Karls University Tübingen, Auf der Morgenstelle 8, 72076 Tübingen, Germany
| | - Matthias Gehringer
- Department of Pharmaceutical/Medicinal Chemistry, Eberhard Karls University Tübingen, Auf der Morgenstelle 8, 72076 Tübingen, Germany
- Cluster of Excellence iFIT (EXC 2180) "Image-Guided & Functionally Instructed Tumor Therapies", University of Tübingen, 72076 Tübingen, Germany
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Xu S, Ramush G, Yang IJ, Das E, Shieh M, Xian M. Geminal-dithiol-based precursors for reactive sulfur species. Chem Commun (Camb) 2024; 60:5606-5609. [PMID: 38712962 PMCID: PMC11112547 DOI: 10.1039/d4cc01003e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2024] [Accepted: 04/29/2024] [Indexed: 05/08/2024]
Abstract
Caged gem-dithiols have been developed as the donors of reactive sulfur species (RSS), but the chemistry of free gem-dithiols as RSS donors has not been well understood. Herein, we report the study of a free gem-dithiol, 1,3-diphenylpropane-2,2-dithiol, as the precursor for several RSS. It releases H2S under physiological conditions and can be converted to a mono-S-nitrosothiol, which serves as a NO donor. Furthermore, it can be converted to 3,3-dibenzyldithiirane, which is an active sulfur transfer reagent and can induce S-persulfidation.
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Affiliation(s)
- Shi Xu
- Department of Chemistry, Brown University, Providence, Rhode Island, 02912, USA.
| | - Geat Ramush
- Department of Chemistry, Brown University, Providence, Rhode Island, 02912, USA.
| | - Iris J Yang
- Department of Chemistry, Brown University, Providence, Rhode Island, 02912, USA.
| | - Eshani Das
- Department of Chemistry, Brown University, Providence, Rhode Island, 02912, USA.
| | - Meg Shieh
- Department of Chemistry, Brown University, Providence, Rhode Island, 02912, USA.
| | - Ming Xian
- Department of Chemistry, Brown University, Providence, Rhode Island, 02912, USA.
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10
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Sahu S, Emenike B, Beusch CM, Bagchi P, Gordon DE, Raj M. Copper(I)-nitrene platform for chemoproteomic profiling of methionine. Nat Commun 2024; 15:4243. [PMID: 38762540 PMCID: PMC11102537 DOI: 10.1038/s41467-024-48403-0] [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: 10/07/2023] [Accepted: 04/30/2024] [Indexed: 05/20/2024] Open
Abstract
Methionine plays a critical role in various biological and cell regulatory processes, making its chemoproteomic profiling indispensable for exploring its functions and potential in protein therapeutics. Building on the principle of rapid oxidation of methionine, we report Copper(I)-Nitrene Platform for robust, and selective labeling of methionine to generate stable sulfonyl sulfimide conjugates under physiological conditions. We demonstrate the versatility of this platform to label methionine in bioactive peptides, intact proteins (6.5-79.5 kDa), and proteins in complex cell lysate mixtures with varying payloads. We discover ligandable proteins and sites harboring hyperreactive methionine within the human proteome. Furthermore, this has been utilized to profile oxidation-sensitive methionine residues, which might increase our understanding of the protective role of methionine in diseases associated with elevated levels of reactive oxygen species. The Copper(I)-Nitrene Platform allows labeling methionine residues in live cancer cells, observing minimal cytotoxic effects and achieving dose-dependent labeling. Confocal imaging further reveals the spatial distribution of modified proteins within the cell membrane, cytoplasm, and nucleus, underscoring the platform's potential in profiling the cellular interactome.
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Affiliation(s)
- Samrat Sahu
- Department of Chemistry, Emory University, Atlanta, GA, USA
| | | | - Christian Michel Beusch
- Department of Pathology and Laboratory Medicine, Emory University, Atlanta, GA, USA
- Department of Surgical Sciences, Uppsala University, Uppsala, Sweden
| | - Pritha Bagchi
- Department of Biochemistry, Emory University, Atlanta, GA, USA
| | - David Ezra Gordon
- Department of Pathology and Laboratory Medicine, Emory University, Atlanta, GA, USA
| | - Monika Raj
- Department of Chemistry, Emory University, Atlanta, GA, USA.
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11
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Li C, Wei TY, Cheung MS, Tsai MY. Deciphering the Cofilin Oligomers via Intermolecular Disulfide Bond Formation: A Coarse-Grained Molecular Dynamics Approach to Understanding Cofilin's Regulation on Actin Filaments. J Phys Chem B 2024; 128:4590-4601. [PMID: 38701111 PMCID: PMC11104348 DOI: 10.1021/acs.jpcb.3c07938] [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: 12/04/2023] [Revised: 04/20/2024] [Accepted: 04/24/2024] [Indexed: 05/05/2024]
Abstract
Cofilin, a key actin-binding protein, orchestrates the dynamics of the actomyosin network through its actin-severing activity and by promoting the recycling of actin monomers. Recent experiments suggest that cofilin forms functionally distinct oligomers via thiol post-translational modifications (PTMs) that promote actin nucleation and assembly. Despite these advances, the structural conformations of cofilin oligomers that modulate actin activity remain elusive because there are combinatorial ways to oxidize thiols in cysteines to form disulfide bonds rapidly. This study employs molecular dynamics simulations to investigate human cofilin 1 as a case study for exploring cofilin dimers via disulfide bond formation. Utilizing a biasing scheme in simulations, we focus on analyzing dimer conformations conducive to disulfide bond formation. Additionally, we explore potential PTMs arising from the examined conformational ensemble. Using the free energy profiling, our simulations unveil a range of probable cofilin dimer structures not represented in current Protein Data Bank entries. These candidate dimers are characterized by their distinct population distributions and relative free energies. Of particular note is a dimer featuring an interface between cysteines 139 and 147 residues, which demonstrates stable free energy characteristics and intriguingly symmetrical geometry. In contrast, the experimentally proposed dimer structure exhibits a less stable free energy profile. We also evaluate frustration quantification based on the energy landscape theory in the protein-protein interactions at the dimer interfaces. Notably, the 39-39 dimer configuration emerges as a promising candidate for forming cofilin tetramers, as substantiated by frustration analysis. Additionally, docking simulations with actin filaments further evaluate the stability of these cofilin dimer-actin complexes. Our findings thus offer a computational framework for understanding the role of thiol PTM of cofilin proteins in regulating oligomerization, and the subsequent cofilin-mediated actin dynamics in the actomyosin network.
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Affiliation(s)
- Chengxuan Li
- Department
of Physics, University of Washington, Seattle, Washington 98195, United States
- Center
for Theoretical Biological Physics, Rice
University, Houston, Texas 77005, United States
| | - Ting-Yi Wei
- Department
of Chemistry and Biochemistry, National
Chung Cheng University, Minhsiung, Chiayi 621301, Taiwan
| | - Margaret S. Cheung
- Department
of Physics, University of Washington, Seattle, Washington 98195, United States
- Center
for Theoretical Biological Physics, Rice
University, Houston, Texas 77005, United States
- Pacific
Northwest National Laboratory, Seattle, Washington 98109, United States
| | - Min-Yeh Tsai
- Department
of Chemistry and Biochemistry, National
Chung Cheng University, Minhsiung, Chiayi 621301, Taiwan
- Division
of Physics, National Center for Theoretical Sciences, National Taiwan University, Taipei 106319, Taiwan
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12
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Zhou L, Yang T, Zhang T, Song Z, Feng G. A novel dual-function fluorescent probe for the detection of cysteine and its applications in vitro. Talanta 2024; 272:125769. [PMID: 38342008 DOI: 10.1016/j.talanta.2024.125769] [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: 11/05/2023] [Revised: 01/31/2024] [Accepted: 02/06/2024] [Indexed: 02/13/2024]
Abstract
A fluorescent probe of both colorimetric and ratiometric type for highly selective and sensitive detection of Cys (cysteine) is very important in biological analysis. In this work, a new colorimetric and ratiometric fluorescent probe ((E)-2-(2-(5-(4-(acryloyloxy)phenyl)furan-2-yl)vinyl)-3-methylbenzo[d]thiazol-3-ium iodide, LP-1) was designed and synthesized for the detection of Cys. The reaction mechanism of LP-1 toward Cys involves a conjugate addition reaction between Cys and the α,β-unsaturated carbonyl group, leading to the formation of an intermediate thioether, followed by intramolecular cyclization to produce the desired compounds LP-1-OH. At this point, the ICT process is activated, significantly increasing the fluorescence intensity of the molecules. Meanwhile, LP-1 is highly selective and sensitive to Cys identification under optimized experimental conditions. LP-1 shows a good linear relationship in the range of Cys concentration from 0.40 μM to 40 μM (R2 = 0.9942) and the limit of detection (LOD) of Cys is 0.19 μM. In addition, we have developed a simple, portable and low-cost smartphone-based high-sensitivity Cys detection method based on naked eye obvious color detection. LP-1 also has low cell toxicity and can be successfully used for biological imaging of Cys, suggesting that it is a promising biological application tool for Cys detection.
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Affiliation(s)
- Lipan Zhou
- College of Chemistry, Jilin University, Changchun, Jilin, 130012, China; State Key Laboratory of Supramolecular Structure and Materials, Jilin University, Changchun, Jilin, 130012, China
| | - Tengao Yang
- College of Chemistry, Jilin University, Changchun, Jilin, 130012, China; National Chemistry Experimental Teaching Demonstration Center, Jilin University, Changchun, Jilin, 130012, China
| | - Tingrui Zhang
- College of Chemistry, Jilin University, Changchun, Jilin, 130012, China; National Chemistry Experimental Teaching Demonstration Center, Jilin University, Changchun, Jilin, 130012, China
| | - Zhiguang Song
- College of Chemistry, Jilin University, Changchun, Jilin, 130012, China; State Key Laboratory of Supramolecular Structure and Materials, Jilin University, Changchun, Jilin, 130012, China; National Chemistry Experimental Teaching Demonstration Center, Jilin University, Changchun, Jilin, 130012, China.
| | - Guodong Feng
- College of Chemistry, Jilin University, Changchun, Jilin, 130012, China.
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13
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Tanimoto H, Kyogaku S, Otsuki A, Tomohiro T. Synthesis of Naphthalimide Azocarboxylates Showing Turn-On Fluorescence by Substitution Reaction with Sulfinates. Chem Asian J 2024; 19:e202400145. [PMID: 38483258 DOI: 10.1002/asia.202400145] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2024] [Revised: 03/12/2024] [Indexed: 04/06/2024]
Abstract
The synthesis and characterization of sulfinate addition-responsive fluorescent molecules are described. We found that addition reaction of sulfinates to naphthalimide-substituted azocarboxylates afforded the corresponding sulfonyl hydrazides with high fluorescence quantum yields (up to 0.91 in THF and 0.54 in methanol), which exhibited a large Stokes shift (105 nm) in protic methanol solvent, while the unsubstituted hydrazide and the sulfonyl-position isomer showed no fluorescence in polar solvents.
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Affiliation(s)
- Hiroki Tanimoto
- Faculty of Pharmaceutical Sciences, University of Toyama, 2630 Sugitani, Toyama, 930-0194, Japan
| | - Shogo Kyogaku
- Faculty of Pharmaceutical Sciences, University of Toyama, 2630 Sugitani, Toyama, 930-0194, Japan
| | - Aoi Otsuki
- Faculty of Pharmaceutical Sciences, University of Toyama, 2630 Sugitani, Toyama, 930-0194, Japan
| | - Takenori Tomohiro
- Faculty of Pharmaceutical Sciences, University of Toyama, 2630 Sugitani, Toyama, 930-0194, Japan
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14
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Jonak K, Suppanz I, Bender J, Chacinska A, Warscheid B, Topf U. Ageing-dependent thiol oxidation reveals early oxidation of proteins with core proteostasis functions. Life Sci Alliance 2024; 7:e202302300. [PMID: 38383455 PMCID: PMC10881836 DOI: 10.26508/lsa.202302300] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Revised: 02/08/2024] [Accepted: 02/09/2024] [Indexed: 02/23/2024] Open
Abstract
Oxidative post-translational modifications of protein thiols are well recognized as a readily occurring alteration of proteins, which can modify their function and thus control cellular processes. The development of techniques enabling the site-specific assessment of protein thiol oxidation on a proteome-wide scale significantly expanded the number of known oxidation-sensitive protein thiols. However, lacking behind are large-scale data on the redox state of proteins during ageing, a physiological process accompanied by increased levels of endogenous oxidants. Here, we present the landscape of protein thiol oxidation in chronologically aged wild-type Saccharomyces cerevisiae in a time-dependent manner. Our data determine early-oxidation targets in key biological processes governing the de novo production of proteins, protein folding, and degradation, and indicate a hierarchy of cellular responses affected by a reversible redox modification. Comparison with existing datasets in yeast, nematode, fruit fly, and mouse reveals the evolutionary conservation of these oxidation targets. To facilitate accessibility, we integrated the cross-species comparison into the newly developed OxiAge Database.
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Affiliation(s)
- Katarzyna Jonak
- https://ror.org/034tvp782 Laboratory of Molecular Basis of Aging and Rejuvenation, Institute of Biochemistry and Biophysics, Polish Academy of Sciences, Warsaw, Poland
| | - Ida Suppanz
- CIBSS Centre for Integrative Biological Signalling Research, University of Freiburg, Freiburg, Germany
| | - Julian Bender
- https://ror.org/00fbnyb24 Biochemistry II, Theodor Boveri-Institute, Biocenter, University of Würzburg, Würzburg, Germany
| | | | - Bettina Warscheid
- CIBSS Centre for Integrative Biological Signalling Research, University of Freiburg, Freiburg, Germany
- https://ror.org/00fbnyb24 Biochemistry II, Theodor Boveri-Institute, Biocenter, University of Würzburg, Würzburg, Germany
| | - Ulrike Topf
- https://ror.org/034tvp782 Laboratory of Molecular Basis of Aging and Rejuvenation, Institute of Biochemistry and Biophysics, Polish Academy of Sciences, Warsaw, Poland
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15
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Kostyuk AI, Rapota DD, Morozova KI, Fedotova AA, Jappy D, Semyanov AV, Belousov VV, Brazhe NA, Bilan DS. Modern optical approaches in redox biology: Genetically encoded sensors and Raman spectroscopy. Free Radic Biol Med 2024; 217:68-115. [PMID: 38508405 DOI: 10.1016/j.freeradbiomed.2024.03.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/22/2023] [Revised: 02/10/2024] [Accepted: 03/13/2024] [Indexed: 03/22/2024]
Abstract
The objective of the current review is to summarize the current state of optical methods in redox biology. It consists of two parts, the first is dedicated to genetically encoded fluorescent indicators and the second to Raman spectroscopy. In the first part, we provide a detailed classification of the currently available redox biosensors based on their target analytes. We thoroughly discuss the main architecture types of these proteins, the underlying engineering strategies for their development, the biochemical properties of existing tools and their advantages and disadvantages from a practical point of view. Particular attention is paid to fluorescence lifetime imaging microscopy as a possible readout technique, since it is less prone to certain artifacts than traditional intensiometric measurements. In the second part, the characteristic Raman peaks of the most important redox intermediates are listed, and examples of how this knowledge can be implemented in biological studies are given. This part covers such fields as estimation of the redox states and concentrations of Fe-S clusters, cytochromes, other heme-containing proteins, oxidative derivatives of thiols, lipids, and nucleotides. Finally, we touch on the issue of multiparameter imaging, in which biosensors are combined with other visualization methods for simultaneous assessment of several cellular parameters.
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Affiliation(s)
- Alexander I Kostyuk
- M.M. Shemyakin and Yu.A. Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Moscow, 117997, Russia; Pirogov Russian National Research Medical University, 117997, Moscow, Russia
| | - Diana D Rapota
- M.M. Shemyakin and Yu.A. Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Moscow, 117997, Russia
| | - Kseniia I Morozova
- Faculty of Biology, M.V. Lomonosov Moscow State University, Moscow, 119234, Russia
| | - Anna A Fedotova
- M.M. Shemyakin and Yu.A. Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Moscow, 117997, Russia; Faculty of Biology, M.V. Lomonosov Moscow State University, Moscow, 119234, Russia
| | - David Jappy
- Federal Center of Brain Research and Neurotechnologies, Federal Medical Biological Agency, Moscow, 117997, Russia
| | - Alexey V Semyanov
- M.M. Shemyakin and Yu.A. Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Moscow, 117997, Russia; Faculty of Biology, M.V. Lomonosov Moscow State University, Moscow, 119234, Russia; Sechenov First Moscow State Medical University, Moscow, 119435, Russia; College of Medicine, Jiaxing University, Jiaxing, Zhejiang Province, 314001, China
| | - Vsevolod V Belousov
- M.M. Shemyakin and Yu.A. Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Moscow, 117997, Russia; Pirogov Russian National Research Medical University, 117997, Moscow, Russia; Federal Center of Brain Research and Neurotechnologies, Federal Medical Biological Agency, Moscow, 117997, Russia; Life Improvement by Future Technologies (LIFT) Center, Skolkovo, Moscow, 143025, Russia
| | - Nadezda A Brazhe
- M.M. Shemyakin and Yu.A. Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Moscow, 117997, Russia; Faculty of Biology, M.V. Lomonosov Moscow State University, Moscow, 119234, Russia.
| | - Dmitry S Bilan
- M.M. Shemyakin and Yu.A. Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Moscow, 117997, Russia; Pirogov Russian National Research Medical University, 117997, Moscow, Russia.
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16
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Meloni M, Rossi J, Fanti S, Carloni G, Tedesco D, Treffon P, Piccinini L, Falini G, Trost P, Vierling E, Licausi F, Giuntoli B, Musiani F, Fermani S, Zaffagnini M. Structural and biochemical characterization of Arabidopsis alcohol dehydrogenases reveals distinct functional properties but similar redox sensitivity. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2024; 118:1054-1070. [PMID: 38308388 DOI: 10.1111/tpj.16651] [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: 10/20/2023] [Revised: 01/07/2024] [Accepted: 01/18/2024] [Indexed: 02/04/2024]
Abstract
Alcohol dehydrogenases (ADHs) are a group of zinc-binding enzymes belonging to the medium-length dehydrogenase/reductase (MDR) protein superfamily. In plants, these enzymes fulfill important functions involving the reduction of toxic aldehydes to the corresponding alcohols (as well as catalyzing the reverse reaction, i.e., alcohol oxidation; ADH1) and the reduction of nitrosoglutathione (GSNO; ADH2/GSNOR). We investigated and compared the structural and biochemical properties of ADH1 and GSNOR from Arabidopsis thaliana. We expressed and purified ADH1 and GSNOR and determined two new structures, NADH-ADH1 and apo-GSNOR, thus completing the structural landscape of Arabidopsis ADHs in both apo- and holo-forms. A structural comparison of these Arabidopsis ADHs revealed a high sequence conservation (59% identity) and a similar fold. In contrast, a striking dissimilarity was observed in the catalytic cavity supporting substrate specificity and accommodation. Consistently, ADH1 and GSNOR showed strict specificity for their substrates (ethanol and GSNO, respectively), although both enzymes had the ability to oxidize long-chain alcohols, with ADH1 performing better than GSNOR. Both enzymes contain a high number of cysteines (12 and 15 out of 379 residues for ADH1 and GSNOR, respectively) and showed a significant and similar responsivity to thiol-oxidizing agents, indicating that redox modifications may constitute a mechanism for controlling enzyme activity under both optimal growth and stress conditions.
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Affiliation(s)
- Maria Meloni
- Department of Pharmacy and Biotechnology, University of Bologna, 40126, Bologna, Italy
| | - Jacopo Rossi
- Department of Pharmacy and Biotechnology, University of Bologna, 40126, Bologna, Italy
| | - Silvia Fanti
- Department of Chemistry "G. Ciamician", University of Bologna, 40126, Bologna, Italy
| | - Giacomo Carloni
- Department of Chemistry "G. Ciamician", University of Bologna, 40126, Bologna, Italy
| | - Daniele Tedesco
- Institute for Organic Synthesis and Photoreactivity (ISOF), National Research Council of Italy (CNR), 40129, Bologna, Italy
| | - Patrick Treffon
- Department of Biochemistry and Molecular Biology, University of Massachusetts Amherst, Amherst, Massachusetts, USA
| | - Luca Piccinini
- Department of Biology, University of Pisa, Pisa, 56127, Italy
- Center for Plant Sciences, Scuola Superiore Sant'Anna, Pisa, 56124, Italy
| | - Giuseppe Falini
- Department of Chemistry "G. Ciamician", University of Bologna, 40126, Bologna, Italy
| | - Paolo Trost
- Department of Pharmacy and Biotechnology, University of Bologna, 40126, Bologna, Italy
| | - Elizabeth Vierling
- Department of Biochemistry and Molecular Biology, University of Massachusetts Amherst, Amherst, Massachusetts, USA
| | | | - Beatrice Giuntoli
- Department of Biology, University of Pisa, Pisa, 56127, Italy
- Center for Plant Sciences, Scuola Superiore Sant'Anna, Pisa, 56124, Italy
| | - Francesco Musiani
- Department of Pharmacy and Biotechnology, University of Bologna, 40126, Bologna, Italy
| | - Simona Fermani
- Department of Chemistry "G. Ciamician", University of Bologna, 40126, Bologna, Italy
- Interdepartmental Centre for Industrial Research Health Sciences & Technologies, University of Bologna, 40064, Bologna, Italy
| | - Mirko Zaffagnini
- Department of Pharmacy and Biotechnology, University of Bologna, 40126, Bologna, Italy
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17
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Zakaria FR, Chen CY, Li J, Wang S, Payne GF, Bentley WE. Redox active plant phenolic, acetosyringone, for electrogenetic signaling. Sci Rep 2024; 14:9666. [PMID: 38671069 PMCID: PMC11053109 DOI: 10.1038/s41598-024-60191-7] [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: 08/14/2023] [Accepted: 04/19/2024] [Indexed: 04/28/2024] Open
Abstract
Redox is a unique, programmable modality capable of bridging communication between biology and electronics. Previous studies have shown that the E. coli redox-responsive OxyRS regulon can be re-wired to accept electrochemically generated hydrogen peroxide (H2O2) as an inducer of gene expression. Here we report that the redox-active phenolic plant signaling molecule acetosyringone (AS) can also induce gene expression from the OxyRS regulon. AS must be oxidized, however, as the reduced state present under normal conditions cannot induce gene expression. Thus, AS serves as a "pro-signaling molecule" that can be activated by its oxidation-in our case by application of oxidizing potential to an electrode. We show that the OxyRS regulon is not induced electrochemically if the imposed electrode potential is in the mid-physiological range. Electronically sliding the applied potential to either oxidative or reductive extremes induces this regulon but through different mechanisms: reduction of O2 to form H2O2 or oxidation of AS. Fundamentally, this work reinforces the emerging concept that redox signaling depends more on molecular activities than molecular structure. From an applications perspective, the creation of an electronically programmed "pro-signal" dramatically expands the toolbox for electronic control of biological responses in microbes, including in complex environments, cell-based materials, and biomanufacturing.
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Affiliation(s)
- Fauziah Rahma Zakaria
- Fischell Department of Bioengineering, University of Maryland, College Park, MD, USA
- Institute for Bioscience and Biotechnology Research, Rockville, MD, USA
- Robert E. Fischell Institute for Biomedical Devices, University of Maryland, College Park, MD, USA
| | - Chen-Yu Chen
- Fischell Department of Bioengineering, University of Maryland, College Park, MD, USA
- Institute for Bioscience and Biotechnology Research, Rockville, MD, USA
- Robert E. Fischell Institute for Biomedical Devices, University of Maryland, College Park, MD, USA
| | - Jinyang Li
- Fischell Department of Bioengineering, University of Maryland, College Park, MD, USA
- Institute for Bioscience and Biotechnology Research, Rockville, MD, USA
- Robert E. Fischell Institute for Biomedical Devices, University of Maryland, College Park, MD, USA
- Division of Biology and Biological Engineering, California Institute of Technology, Pasadena, CA, USA
| | - Sally Wang
- Fischell Department of Bioengineering, University of Maryland, College Park, MD, USA
- Institute for Bioscience and Biotechnology Research, Rockville, MD, USA
- Robert E. Fischell Institute for Biomedical Devices, University of Maryland, College Park, MD, USA
| | - Gregory F Payne
- Institute for Bioscience and Biotechnology Research, Rockville, MD, USA.
- Robert E. Fischell Institute for Biomedical Devices, University of Maryland, College Park, MD, USA.
| | - William E Bentley
- Fischell Department of Bioengineering, University of Maryland, College Park, MD, USA.
- Institute for Bioscience and Biotechnology Research, Rockville, MD, USA.
- Robert E. Fischell Institute for Biomedical Devices, University of Maryland, College Park, MD, USA.
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18
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Tamhankar A, Wensien M, Jannuzzi SAV, Chatterjee S, Lassalle-Kaiser B, Tittmann K, DeBeer S. In Solution Identification of the Lysine-Cysteine Redox Switch with a NOS Bridge in Transaldolase by Sulfur K-Edge X-ray Absorption Spectroscopy. J Phys Chem Lett 2024; 15:4263-4267. [PMID: 38607253 PMCID: PMC11056971 DOI: 10.1021/acs.jpclett.4c00484] [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: 02/15/2024] [Revised: 04/04/2024] [Accepted: 04/05/2024] [Indexed: 04/13/2024]
Abstract
A novel covalent post-translational modification (lysine-NOS-cysteine) was discovered in proteins, initially in the enzyme transaldolase of Neisseria gonorrhoeae (NgTAL) [Nature 2021, 593, 460-464], acting as a redox switch. The identification of this novel linkage in solution was unprecedented until now. We present detection of the NOS redox switch in solution using sulfur K-edge X-ray absorption spectroscopy (XAS). The oxidized NgTAL spectrum shows a distinct shoulder on the low-energy side of the rising edge, corresponding to a dipole-allowed transition from the sulfur 1s core to the unoccupied σ* orbital of the S-O group in the NOS bridge. This feature is absent in the XAS spectrum of reduced NgTAL, where Lys-NOS-Cys is absent. Our experimental and calculated XAS data support the presence of a NOS bridge in solution, thus potentially facilitating future studies on enzyme activity regulation mediated by the NOS redox switches, drug discovery, biocatalytic applications, and protein design.
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Affiliation(s)
- Ashish Tamhankar
- Max
Planck Institute for Chemical Energy Conversion, Stiftstraße 34-36, 45470 Mülheim an der Ruhr, Germany
| | - Marie Wensien
- Department
of Molecular Enzymology, Göttingen Center of Molecular Biosciences, Georg-August University Göttingen, Julia-Lermonotowa-Weg 3, 37077 Göttingen, Germany
- Max
Planck Institute for Multidisciplinary Sciences Göttingen, 37075 Göttingen, Germany
| | - Sergio A. V. Jannuzzi
- Max
Planck Institute for Chemical Energy Conversion, Stiftstraße 34-36, 45470 Mülheim an der Ruhr, Germany
| | - Sayanti Chatterjee
- Max
Planck Institute for Chemical Energy Conversion, Stiftstraße 34-36, 45470 Mülheim an der Ruhr, Germany
- Department
of Chemistry, Indian Institute of Technology
Roorkee, Roorkee, 247667 Uttarakhand, India
| | | | - Kai Tittmann
- Department
of Molecular Enzymology, Göttingen Center of Molecular Biosciences, Georg-August University Göttingen, Julia-Lermonotowa-Weg 3, 37077 Göttingen, Germany
- Max
Planck Institute for Multidisciplinary Sciences Göttingen, 37075 Göttingen, Germany
| | - Serena DeBeer
- Max
Planck Institute for Chemical Energy Conversion, Stiftstraße 34-36, 45470 Mülheim an der Ruhr, Germany
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19
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Luo L, Guo R, Wang L, Song X, Wang Z, Wu J. A novel fluorescent probe with a large Stokes shift for colorimetric and selective detection of cysteine in water, milk, cucumber, pear and tomato. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2024; 16:2322-2329. [PMID: 38533729 DOI: 10.1039/d3ay02322b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/28/2024]
Abstract
Cysteine is an important amino acid that is related to human health and food safety. How to effectively detect Cys in food has received widespread attention. Compared with other methods, fluorescent probes have the advantages of simple operation, high sensitivity, and good selectivity. Therefore, a selective fluorescence probe 2 for Cys in food was designed and synthesized. Probe 2 employed the acrylate group as a thiol-recognition site for Cys, which endowed probe 2 with better selectivity for Cys over Hcy and GSH. The recognition pathway underwent Michael addition, intramolecular cyclization, and concomitant release of the piperideine-based fluorophore, along with a chromogenic change from yellow to orange. This pathway was supported by 1H NMR analysis and DFT calculations. In addition, probe 2 displays a linear response to Cys concentrations (0-30 μM), low detection limit (0.89 μM), and large Stokes shift (125 nm). Overall, probe 2 showed great application potential for the quantitative determination of Cys in water, milk, cucumber, pear and tomato.
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Affiliation(s)
- Lin Luo
- Green Catalysis Center and College of Chemistry, Zhengzhou University, Zhengzhou, 450001, P. R. China.
| | - Ranran Guo
- Green Catalysis Center and College of Chemistry, Zhengzhou University, Zhengzhou, 450001, P. R. China.
| | - Lianjie Wang
- Green Catalysis Center and College of Chemistry, Zhengzhou University, Zhengzhou, 450001, P. R. China.
| | - Xixi Song
- Green Catalysis Center and College of Chemistry, Zhengzhou University, Zhengzhou, 450001, P. R. China.
| | - Zhao Wang
- Green Catalysis Center and College of Chemistry, Zhengzhou University, Zhengzhou, 450001, P. R. China.
- College of Food and Biological Engineering, Henan University of Animal Husbandry and Economy, Zhengzhou, 450046, P. R. China.
| | - Junliang Wu
- Green Catalysis Center and College of Chemistry, Zhengzhou University, Zhengzhou, 450001, P. R. China.
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20
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Gao Y, Zhu Y, Awakawa T, Abe I. Unusual cysteine modifications in natural product biosynthesis. RSC Chem Biol 2024; 5:293-311. [PMID: 38576726 PMCID: PMC10989515 DOI: 10.1039/d4cb00020j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2024] [Accepted: 02/08/2024] [Indexed: 04/06/2024] Open
Abstract
l-Cysteine is a highly reactive amino acid that is modified into a variety of chemical structures, including cysteine sulfinic acid in human metabolic pathways, and sulfur-containing scaffolds of amino acids, alkaloids, and peptides in natural product biosynthesis. Among the modification enzymes responsible for these cysteine-derived compounds, metalloenzymes constitute an important family of enzymes that catalyze a wide variety of reactions. Therefore, understanding their reaction mechanisms is important for the biosynthetic production of cysteine-derived natural products. This review mainly summarizes recent mechanistic investigations of metalloenzymes, with a particular focus on recently discovered mononuclear non-heme iron (NHI) enzymes, dinuclear NHI enzymes, and radical-SAM enzymes involved in unusual cysteine modifications in natural product biosynthesis.
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Affiliation(s)
- Yaojie Gao
- Graduate School of Pharmaceutical Sciences, The University of Tokyo 7-3-1 Hongo, Bunkyo-ku Tokyo 113-0033 Japan
| | - Yuhao Zhu
- Graduate School of Pharmaceutical Sciences, The University of Tokyo 7-3-1 Hongo, Bunkyo-ku Tokyo 113-0033 Japan
| | - Takayoshi Awakawa
- Graduate School of Pharmaceutical Sciences, The University of Tokyo 7-3-1 Hongo, Bunkyo-ku Tokyo 113-0033 Japan
- RIKEN Center for Sustainable Resource Science Wako Saitama 351-0198 Japan
| | - Ikuro Abe
- Graduate School of Pharmaceutical Sciences, The University of Tokyo 7-3-1 Hongo, Bunkyo-ku Tokyo 113-0033 Japan
- Collaborative Research Institute for Innovative Microbiology, The University of Tokyo Yayoi 1-1-1, Bunkyo-ku Tokyo 113-8657 Japan
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21
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Sousa JRL, Franco MS, Mendes LD, Araújo LA, Neto JSS, Frizon TEA, Dos Santos VB, Carasek E, Saba S, Rafique J, Braga AL. KIO 3-catalyzed selective oxidation of thiols to disulfides in water under ambient conditions. Org Biomol Chem 2024; 22:2175-2181. [PMID: 38259235 DOI: 10.1039/d3ob01913f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2024]
Abstract
Herein, we report a KIO3-catalyzed oxidative coupling of thiols to their corresponding disulfides in water, in a short time and at ambient temperature. The reaction has a broad scope and exhibits good functional group tolerance, resulting in the desired products in excellent yields. This approach allows the reuse of the reaction system in multiple cycles and scale-up. Furthermore, the current protocol demonstrates compatibility for in situ generation of disulfides and post application in C(sp2)-H bond sulfenylation.
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Affiliation(s)
- José R L Sousa
- LabSelen, Departamento de Química, Universidade Federal de Santa Catarina - UFSC, Florianópolis, 88040-900, SC, Brazil.
| | - Marcelo S Franco
- LabSelen, Departamento de Química, Universidade Federal de Santa Catarina - UFSC, Florianópolis, 88040-900, SC, Brazil.
| | - Leila D Mendes
- LabSelen, Departamento de Química, Universidade Federal de Santa Catarina - UFSC, Florianópolis, 88040-900, SC, Brazil.
| | - Lucas A Araújo
- LabSO, Instituto de Química - IQ, Universidade Federal de Goiás - UFG, Goiânia 74690-900, GO, Brazil.
| | - José S S Neto
- LabSelen, Departamento de Química, Universidade Federal de Santa Catarina - UFSC, Florianópolis, 88040-900, SC, Brazil.
| | - Tiago E A Frizon
- Departamento de Energia e Sustentabilidade, Universidade Federal de Santa Catarina - UFSC, Campus Araranguá, Araranguá 88905-120, SC, Brazil
| | - Vanessa B Dos Santos
- Instituto de Química - INQUI, Universidade Federal do Mato Grosso do Sul - UFMS, Campo Grande, 79074-460, MS, Brazil.
| | - Eduardo Carasek
- LabSelen, Departamento de Química, Universidade Federal de Santa Catarina - UFSC, Florianópolis, 88040-900, SC, Brazil.
| | - Sumbal Saba
- Departamento de Energia e Sustentabilidade, Universidade Federal de Santa Catarina - UFSC, Campus Araranguá, Araranguá 88905-120, SC, Brazil
| | - Jamal Rafique
- Departamento de Energia e Sustentabilidade, Universidade Federal de Santa Catarina - UFSC, Campus Araranguá, Araranguá 88905-120, SC, Brazil
- Instituto de Química - INQUI, Universidade Federal do Mato Grosso do Sul - UFMS, Campo Grande, 79074-460, MS, Brazil.
| | - Antonio L Braga
- LabSelen, Departamento de Química, Universidade Federal de Santa Catarina - UFSC, Florianópolis, 88040-900, SC, Brazil.
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22
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Stastna M. Post-translational modifications of proteins in cardiovascular diseases examined by proteomic approaches. FEBS J 2024. [PMID: 38440918 DOI: 10.1111/febs.17108] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2023] [Revised: 01/22/2024] [Accepted: 02/20/2024] [Indexed: 03/06/2024]
Abstract
Over 400 different types of post-translational modifications (PTMs) have been reported and over 200 various types of PTMs have been discovered using mass spectrometry (MS)-based proteomics. MS-based proteomics has proven to be a powerful method capable of global PTM mapping with the identification of modified proteins/peptides, the localization of PTM sites and PTM quantitation. PTMs play regulatory roles in protein functions, activities and interactions in various heart related diseases, such as ischemia/reperfusion injury, cardiomyopathy and heart failure. The recognition of PTMs that are specific to cardiovascular pathology and the clarification of the mechanisms underlying these PTMs at molecular levels are crucial for discovery of novel biomarkers and application in a clinical setting. With sensitive MS instrumentation and novel biostatistical methods for precise processing of the data, low-abundance PTMs can be successfully detected and the beneficial or unfavorable effects of specific PTMs on cardiac function can be determined. Moreover, computational proteomic strategies that can predict PTM sites based on MS data have gained an increasing interest and can contribute to characterization of PTM profiles in cardiovascular disorders. More recently, machine learning- and deep learning-based methods have been employed to predict the locations of PTMs and explore PTM crosstalk. In this review article, the types of PTMs are briefly overviewed, approaches for PTM identification/quantitation in MS-based proteomics are discussed and recently published proteomic studies on PTMs associated with cardiovascular diseases are included.
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Affiliation(s)
- Miroslava Stastna
- Institute of Analytical Chemistry of the Czech Academy of Sciences, Brno, Czech Republic
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23
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Hartmann P, Bohdan K, Hommrich M, Juliá F, Vogelsang L, Eirich J, Zangl R, Farès C, Jacobs JB, Mukhopadhyay D, Mengeler JM, Vetere A, Sterling MS, Hinrichs H, Becker S, Morgner N, Schrader W, Finkemeier I, Dietz KJ, Griesinger C, Ritter T. Chemoselective umpolung of thiols to episulfoniums for cysteine bioconjugation. Nat Chem 2024; 16:380-388. [PMID: 38123842 PMCID: PMC10914617 DOI: 10.1038/s41557-023-01388-7] [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: 01/12/2023] [Accepted: 10/27/2023] [Indexed: 12/23/2023]
Abstract
Cysteine conjugation is an important tool in protein research and relies on fast, mild and chemoselective reactions. Cysteinyl thiols can either be modified with prefunctionalized electrophiles, or converted into electrophiles themselves for functionalization with selected nucleophiles in an independent step. Here we report a bioconjugation strategy that uses a vinyl thianthrenium salt to transform cysteine into a highly reactive electrophilic episulfonium intermediate in situ, to enable conjugation with a diverse set of bioorthogonal nucleophiles in a single step. The reactivity profile can connect several nucleophiles to biomolecules through a short and stable ethylene linker, ideal for introduction of infrared labels, post-translational modifications or NMR probes. In the absence of reactive exogenous nucleophiles, nucleophilic amino acids can react with the episulfonium intermediate for native peptide stapling and protein-protein ligation. Ready synthetic access to isotopologues of vinyl thianthrenium salts enables applications in quantitative proteomics. Such diverse applications demonstrate the utility of vinyl-thianthrenium-based bioconjugation as a fast, selective and broadly applicable tool for chemical biology.
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Affiliation(s)
- Philipp Hartmann
- Max-Planck-Institut für Kohlenforschung, Mülheim an der Ruhr, Germany
- Institute of Organic Chemistry, RWTH Aachen University, Aachen, Germany
| | - Kostiantyn Bohdan
- Max-Planck-Institut für Kohlenforschung, Mülheim an der Ruhr, Germany
- Institute of Organic Chemistry, RWTH Aachen University, Aachen, Germany
| | - Moritz Hommrich
- Max-Planck-Institut für Kohlenforschung, Mülheim an der Ruhr, Germany
- Institute of Organic Chemistry, RWTH Aachen University, Aachen, Germany
| | - Fabio Juliá
- Max-Planck-Institut für Kohlenforschung, Mülheim an der Ruhr, Germany
| | - Lara Vogelsang
- Biochemistry and Physiology of Plants, Faculty of Biology, Bielefeld University, Bielefeld, Germany
| | - Jürgen Eirich
- Institute of Plant Biology and Biotechnology, University of Münster, Münster, Germany
| | - Rene Zangl
- Institute of Physical and Theoretical Chemistry, Goethe University Frankfurt/Main, Frankfurt/Main, Germany
| | - Christophe Farès
- Max-Planck-Institut für Kohlenforschung, Mülheim an der Ruhr, Germany
| | | | | | | | - Alessandro Vetere
- Max-Planck-Institut für Kohlenforschung, Mülheim an der Ruhr, Germany
| | | | - Heike Hinrichs
- Max-Planck-Institut für Kohlenforschung, Mülheim an der Ruhr, Germany
| | - Stefan Becker
- Max Planck Institute for Multidisciplinary Sciences, Göttingen, Germany
| | - Nina Morgner
- Institute of Physical and Theoretical Chemistry, Goethe University Frankfurt/Main, Frankfurt/Main, Germany
| | - Wolfgang Schrader
- Max-Planck-Institut für Kohlenforschung, Mülheim an der Ruhr, Germany
| | - Iris Finkemeier
- Institute of Plant Biology and Biotechnology, University of Münster, Münster, Germany
| | - Karl-Josef Dietz
- Biochemistry and Physiology of Plants, Faculty of Biology, Bielefeld University, Bielefeld, Germany
| | | | - Tobias Ritter
- Max-Planck-Institut für Kohlenforschung, Mülheim an der Ruhr, Germany.
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24
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Li H, Zhang H, Chen L, Shen Y, Cao Y, Li X, Yao J. Indirubin alleviates retinal neurodegeneration through the regulation of PI3K/AKT signaling. J Biomed Res 2024; 38:256-268. [PMID: 38387889 PMCID: PMC11144936 DOI: 10.7555/jbr.37.20230078] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2023] [Revised: 05/30/2023] [Accepted: 06/01/2023] [Indexed: 02/24/2024] Open
Abstract
Retinal neurodegenerative disease is a leading cause of blindness among the elderly in developed countries, including glaucoma, diabetic retinopathy, traumatic optic neuropathy and optic neuritis, etc. The current clinical treatment is not very effective. We investigated indirubin, one of the main bioactive components of the traditional Chinese medicine Danggui Longhui Pill, in the present study for its role in retinal neurodegeneration. Indirubin exhibited no detectable tissue toxicity in vivo or cytotoxicity in vitro. Moreover, indirubin improved visual function and ameliorated retinal neurodegeneration in mice after optic nerve crush injury in vivo. Furthermore, indirubin reduced the apoptosis of retinal ganglion cells induced by oxidative stress in vitro. In addition, indirubin significantly suppressed the increased production of intracellular reactive oxygen species and the decreased activity of superoxide dismutase induced by oxidative stress. Mechanically, indirubin played a neuroprotective role by regulating the PI3K/AKT/BAD/BCL-2 signaling. In conclusion, indirubin protected retinal ganglion cells from oxidative damage and alleviated retinal neurodegeneration induced by optic nerve crush injury. The present study provides a potential therapeutic medicine for retinal neurodegenerative diseases.
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Affiliation(s)
- Huan Li
- Department of Ophthalmology, the Affiliated Eye Hospital of Nanjing Medical University, Nanjing, Jiangsu 210029, China
- Department of Ophthalmology, the Fourth School of Clinical Medicine, Nanjing Medical University, Nanjing, Jiangsu 210029, China
| | - Huiying Zhang
- Department of Ophthalmology, the Affiliated Eye Hospital of Nanjing Medical University, Nanjing, Jiangsu 210029, China
- Department of Ophthalmology, the Fourth School of Clinical Medicine, Nanjing Medical University, Nanjing, Jiangsu 210029, China
| | - Lushu Chen
- Department of Ophthalmology, the Affiliated Eye Hospital of Nanjing Medical University, Nanjing, Jiangsu 210029, China
- Department of Ophthalmology, the Fourth School of Clinical Medicine, Nanjing Medical University, Nanjing, Jiangsu 210029, China
| | - Yaming Shen
- Department of Ophthalmology, the Affiliated Eye Hospital of Nanjing Medical University, Nanjing, Jiangsu 210029, China
- Department of Ophthalmology, the Fourth School of Clinical Medicine, Nanjing Medical University, Nanjing, Jiangsu 210029, China
| | - Yuan Cao
- Department of Ophthalmology, the Affiliated Eye Hospital of Nanjing Medical University, Nanjing, Jiangsu 210029, China
- Department of Ophthalmology, the Fourth School of Clinical Medicine, Nanjing Medical University, Nanjing, Jiangsu 210029, China
| | - Xiumiao Li
- Department of Ophthalmology, the Affiliated Eye Hospital of Nanjing Medical University, Nanjing, Jiangsu 210029, China
- Department of Ophthalmology, the Fourth School of Clinical Medicine, Nanjing Medical University, Nanjing, Jiangsu 210029, China
| | - Jin Yao
- Department of Ophthalmology, the Affiliated Eye Hospital of Nanjing Medical University, Nanjing, Jiangsu 210029, China
- Department of Ophthalmology, the Fourth School of Clinical Medicine, Nanjing Medical University, Nanjing, Jiangsu 210029, China
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25
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Ramachandran Nair V, Sandeep K, Shanthil M, Dhanya S, Archana A, Vibin M, Divyalakshmi H. Simple and Cost-Effective Quantum Dot Chemodosimeter for Visual Detection of Biothiols in Human Blood Serum. ACS OMEGA 2024; 9:6588-6594. [PMID: 38371793 PMCID: PMC10870302 DOI: 10.1021/acsomega.3c07518] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/28/2023] [Revised: 01/08/2024] [Accepted: 01/12/2024] [Indexed: 02/20/2024]
Abstract
An emission "turn-off" chemodosimeter for the naked-eye detection of biothiols using silica-overcoated cadmium selenide quantum dots is developed. Hole scavenging by the thiol group of cysteine, homocysteine, or glutathione on interaction with quantum dots resulted in an instant and permanent emission quenching under physiologically relevant conditions. Also, the emission suppression is so specific that thiols and substituted thiols (methionine and cystine) can easily be distinguished. A pilot experiment for the visual detection of serum thiols in human blood was also conducted. Densitometry analysis proved the potential of this system as a new methodology in clinical chemistry and research laboratories for routine blood and urine analyses using a simple procedure. This method enables one to visually distinguish biothiols and oxidized biothiols, whose ratio plays a crucial role in maintaining "redox thiol status" in the blood.
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Affiliation(s)
- Vinayakan Ramachandran Nair
- Department
of Chemistry (Research Center under MG University, Kerala), NSS Hindu College (Nationally Accredited with ‘A’
Grade), Changanacherry 686102, Kerala, India
- Chemical
Sciences and Technology Division, National
Institute for Interdisciplinary Science and Technology (NIIST-CSIR), Thiruvananthapuram 695019, Kerala, India
| | - Kulangara Sandeep
- Department
of Chemistry, Government Victoria College,
Research Center under University of Calicut, Palakkad 678001, Kerala, India
| | - Madhavan Shanthil
- Department
of Chemistry, Government Victoria College,
Research Center under University of Calicut, Palakkad 678001, Kerala, India
| | - Santhakumar Dhanya
- Department
of Chemistry (Research Center under MG University, Kerala), NSS Hindu College (Nationally Accredited with ‘A’
Grade), Changanacherry 686102, Kerala, India
| | - Aravind Archana
- Department
of Chemistry, Saveetha School of Engineering, SIMATS, Chennai 602105, Tamil Nadu, India
| | - Muthunayagam Vibin
- Department
of Biochemistry, St. Albert’s College
(Autonomous), Mahatma Gandhi University, Ernakulam 682018, Kerala, India
| | - Hareendran Divyalakshmi
- Department
of Chemistry (Research Center under MG University, Kerala), NSS Hindu College (Nationally Accredited with ‘A’
Grade), Changanacherry 686102, Kerala, India
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26
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André-Lévigne D, Pignel R, Boet S, Jaquet V, Kalbermatten DF, Madduri S. Role of Oxygen and Its Radicals in Peripheral Nerve Regeneration: From Hypoxia to Physoxia to Hyperoxia. Int J Mol Sci 2024; 25:2030. [PMID: 38396709 PMCID: PMC10888612 DOI: 10.3390/ijms25042030] [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: 12/26/2023] [Revised: 02/02/2024] [Accepted: 02/05/2024] [Indexed: 02/25/2024] Open
Abstract
Oxygen is compulsory for mitochondrial function and energy supply, but it has numerous more nuanced roles. The different roles of oxygen in peripheral nerve regeneration range from energy supply, inflammation, phagocytosis, and oxidative cell destruction in the context of reperfusion injury to crucial redox signaling cascades that are necessary for effective axonal outgrowth. A fine balance between reactive oxygen species production and antioxidant activity draws the line between physiological and pathological nerve regeneration. There is compelling evidence that redox signaling mediated by the Nox family of nicotinamide adenine dinucleotide phosphate (NADPH) oxidases plays an important role in peripheral nerve regeneration. Further research is needed to better characterize the role of Nox in physiological and pathological circumstances, but the available data suggest that the modulation of Nox activity fosters great therapeutic potential. One of the promising approaches to enhance nerve regeneration by modulating the redox environment is hyperbaric oxygen therapy. In this review, we highlight the influence of various oxygenation states, i.e., hypoxia, physoxia, and hyperoxia, on peripheral nerve repair and regeneration. We summarize the currently available data and knowledge on the effectiveness of using hyperbaric oxygen therapy to treat nerve injuries and discuss future directions.
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Affiliation(s)
- Dominik André-Lévigne
- Division of Plastic, Reconstructive and Aesthetic Surgery, Geneva University Hospitals, 1205 Geneva, Switzerland
| | - Rodrigue Pignel
- Subaquatic and Hyperbaric Medicine Unit, Division of Emergency Medicine, Department of Anesthesiology, Clinical Pharmacology, Intensive Care and Emergency Medicine, Geneva University Hospitals and Faculty of Medicine, University of Geneva, 1205 Geneva, Switzerland
| | - Sylvain Boet
- Subaquatic and Hyperbaric Medicine Unit, Division of Emergency Medicine, Department of Anesthesiology, Clinical Pharmacology, Intensive Care and Emergency Medicine, Geneva University Hospitals and Faculty of Medicine, University of Geneva, 1205 Geneva, Switzerland
- Department of Anesthesiology and Pain Medicine, The Ottawa Hospital, Ottawa, ON K1H 8L6, Canada
- Ottawa Hospital Research Institute, Clinical Epidemiology Program, Department of Innovation in Medical Education, University of Ottawa, Ottawa, ON K1H 8L6, Canada
- Institut du Savoir Montfort, Ottawa, ON K1K 0T2, Canada
| | - Vincent Jaquet
- Department of Cell Physiology and Metabolism, University of Geneva, 1205 Geneva, Switzerland
- READS Unit, Faculty of Medicine, University of Geneva, 1205 Geneva, Switzerland
| | - Daniel F. Kalbermatten
- Division of Plastic, Reconstructive and Aesthetic Surgery, Geneva University Hospitals, 1205 Geneva, Switzerland
- Bioengineering and Neuroregeneration Laboratory, Department of Surgery, University of Geneva, 1205 Geneva, Switzerland
| | - Srinivas Madduri
- Division of Plastic, Reconstructive and Aesthetic Surgery, Geneva University Hospitals, 1205 Geneva, Switzerland
- Bioengineering and Neuroregeneration Laboratory, Department of Surgery, University of Geneva, 1205 Geneva, Switzerland
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27
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Rulmont C, Stigliani JL, Hureau C, Esmieu C. Rationally Designed Cu(I) Ligand to Prevent CuAβ-Generated ROS Production in the Alzheimer's Disease Context. Inorg Chem 2024; 63:2340-2351. [PMID: 38243896 DOI: 10.1021/acs.inorgchem.3c02693] [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: 01/22/2024]
Abstract
In the context of Alzheimer's disease, copper (Cu) can be loosely bound to the amyloid-β (Aβ) peptide, leading to the formation of CuAβ, which can catalytically generate reactive oxygen species that contribute to oxidative stress. To fight against this phenomenon, the chelation therapy approach has been developed and consists of using a ligand able to remove Cu from Aβ and to redox-silence it, thus stopping the reactive oxygen species (ROS) production. A large number of Cu(II) chelators has been studied, allowing us to define and refine the properties required to design a "good" ligand, but without strong therapeutic outcomes to date. Those chelators targeted the Cu(II) redox state. Herein, we explore a parallel and relevant alternative pathway by designing a chelator able to target the Cu(I) redox state. To that end, we designed LH2 ([1N3S] binding set) and demonstrated that (i) it is perfectly able to extract Cu(I) from Cu(I)Aβ even in the presence of an excess of Zn(II) and (ii) it redox-silences the Cu, preventing the formation of ROS. We showed that LH2 that is sensitive to oxidation can efficiently replace the [Zn(II)L] complex without losing its excellent ability to stop the ROS production while increasing its resistance to oxidation.
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Affiliation(s)
- Clément Rulmont
- LCC-CNRS, Université de Toulouse, CNRS, Toulouse 31077, France
| | | | | | - Charlène Esmieu
- LCC-CNRS, Université de Toulouse, CNRS, Toulouse 31077, France
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28
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Jiang Z, Tang Y, Lu J, Xu C, Niu Y, Zhang G, Yang Y, Cheng X, Tong L, Chen Z, Tang B. Identification of sulfhydryl-containing proteins and further evaluation of the selenium-tagged redox homeostasis-regulating proteins. Redox Biol 2024; 69:102969. [PMID: 38064764 PMCID: PMC10755098 DOI: 10.1016/j.redox.2023.102969] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2023] [Revised: 11/16/2023] [Accepted: 11/16/2023] [Indexed: 01/01/2024] Open
Abstract
Chemoproteomic profiling of sulfhydryl-containing proteins has consistently been an attractive research hotspot. However, there remains a dearth of probes that are specifically designed for sulfhydryl-containing proteins, possessing sufficient reactivity, specificity, distinctive isotopic signature, as well as efficient labeling and evaluation capabilities for proteins implicated in the regulation of redox homeostasis. Here, the specific selenium-containing probes (Se-probes) in this work displayed high specificity and reactivity toward cysteine thiols on small molecules, peptides and purified proteins and showed very good competitive effect of proteins labeling in gel-ABPP. We identified more than 6000 candidate proteins. In TOP-ABPP, we investigated the peptide labeled by Se-probes, which revealed a distinct isotopic envelope pattern of selenium in both the primary and secondary mass spectra. This unique pattern can provide compelling evidence for identifying redox regulatory proteins and other target peptides. Furthermore, our examiation of post-translational modification (PTMs) of the cysteine site residues showed that oxidation PTMs was predominantly observed. We anticipate that Se-probes will enable broader and deeper proteome-wide profiling of sulfhydryl-containing proteins, provide an ideal tool for focusing on proteins that regulate redox homeostasis and advance the development of innovative selenium-based pharmaceuticals.
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Affiliation(s)
- Zhongyao Jiang
- College of Chemistry, Chemical Engineering and Materials Science, Key Laboratory of Molecular and Nano Probes, Minis-try of Education, Institute of Molecular and Nano Science, Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong, Shandong Normal University, Jinan, 250014, PR China
| | - Yue Tang
- Department of Emergency Medicine, Shandong Provincial Clinical Research Center for Emergency and Critical Care Medicine, Qilu Hospital of Shandong University, Jinan, PR China.
| | - Jun Lu
- College of Chemistry, Chemical Engineering and Materials Science, Key Laboratory of Molecular and Nano Probes, Minis-try of Education, Institute of Molecular and Nano Science, Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong, Shandong Normal University, Jinan, 250014, PR China
| | - Chang Xu
- College of Chemistry, Chemical Engineering and Materials Science, Key Laboratory of Molecular and Nano Probes, Minis-try of Education, Institute of Molecular and Nano Science, Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong, Shandong Normal University, Jinan, 250014, PR China
| | - Yaxin Niu
- College of Chemistry, Chemical Engineering and Materials Science, Key Laboratory of Molecular and Nano Probes, Minis-try of Education, Institute of Molecular and Nano Science, Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong, Shandong Normal University, Jinan, 250014, PR China
| | - Guanglu Zhang
- College of Chemistry, Chemical Engineering and Materials Science, Key Laboratory of Molecular and Nano Probes, Minis-try of Education, Institute of Molecular and Nano Science, Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong, Shandong Normal University, Jinan, 250014, PR China
| | - Yanmei Yang
- College of Chemistry, Chemical Engineering and Materials Science, Key Laboratory of Molecular and Nano Probes, Minis-try of Education, Institute of Molecular and Nano Science, Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong, Shandong Normal University, Jinan, 250014, PR China
| | - Xiufen Cheng
- College of Chemistry, Chemical Engineering and Materials Science, Key Laboratory of Molecular and Nano Probes, Minis-try of Education, Institute of Molecular and Nano Science, Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong, Shandong Normal University, Jinan, 250014, PR China
| | - Lili Tong
- College of Chemistry, Chemical Engineering and Materials Science, Key Laboratory of Molecular and Nano Probes, Minis-try of Education, Institute of Molecular and Nano Science, Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong, Shandong Normal University, Jinan, 250014, PR China
| | - Zhenzhen Chen
- College of Chemistry, Chemical Engineering and Materials Science, Key Laboratory of Molecular and Nano Probes, Minis-try of Education, Institute of Molecular and Nano Science, Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong, Shandong Normal University, Jinan, 250014, PR China.
| | - Bo Tang
- College of Chemistry, Chemical Engineering and Materials Science, Key Laboratory of Molecular and Nano Probes, Minis-try of Education, Institute of Molecular and Nano Science, Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong, Shandong Normal University, Jinan, 250014, PR China; Laoshan Laboratory, Qingdao, 266200, PR China.
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29
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Turan G, Olgun ÇE, Ayten H, Toker P, Ashyralyyev A, Savaş B, Karaca E, Muyan M. Dynamic proximity interaction profiling suggests that YPEL2 is involved in cellular stress surveillance. Protein Sci 2024; 33:e4859. [PMID: 38145972 PMCID: PMC10804680 DOI: 10.1002/pro.4859] [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: 08/17/2023] [Revised: 11/30/2023] [Accepted: 12/03/2023] [Indexed: 12/27/2023]
Abstract
YPEL2 is a member of the evolutionarily conserved YPEL family involved in cellular proliferation, mobility, differentiation, senescence, and death. However, the mechanism by which YPEL2, or YPEL proteins, mediates its effects is largely unknown. Proteins perform their functions in a network of proteins whose identities, amounts, and compositions change spatiotemporally in a lineage-specific manner in response to internal and external stimuli. Here, we explored interaction partners of YPEL2 by using dynamic TurboID-coupled mass spectrometry analyses to infer a function for the protein. Our results using inducible transgene expressions in COS7 cells indicate that proximity interaction partners of YPEL2 are mainly involved in RNA and mRNA metabolic processes, ribonucleoprotein complex biogenesis, regulation of gene silencing by miRNA, and cellular responses to stress. We showed that YPEL2 interacts with the RNA-binding protein ELAVL1 and the selective autophagy receptor SQSTM1. We also found that YPEL2 localizes stress granules in response to sodium arsenite, an oxidative stress inducer, which suggests that YPEL2 participates in stress granule-related processes. Establishing a point of departure in the delineation of structural/functional features of YPEL2, our results suggest that YPEL2 may be involved in stress surveillance mechanisms.
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Affiliation(s)
- Gizem Turan
- Department of Biological SciencesMiddle East Technical UniversityAnkaraTürkiye
| | - Çağla Ece Olgun
- Department of Biological SciencesMiddle East Technical UniversityAnkaraTürkiye
| | - Hazal Ayten
- Department of Biological SciencesMiddle East Technical UniversityAnkaraTürkiye
| | - Pelin Toker
- Department of Biological SciencesMiddle East Technical UniversityAnkaraTürkiye
| | | | - Büşra Savaş
- İzmir Biomedicine and Genome CenterİzmirTürkiye
- Izmir International Biomedicine and Genome InstituteDokuz Eylül UniversityIzmirTürkiye
| | - Ezgi Karaca
- İzmir Biomedicine and Genome CenterİzmirTürkiye
- Izmir International Biomedicine and Genome InstituteDokuz Eylül UniversityIzmirTürkiye
| | - Mesut Muyan
- Department of Biological SciencesMiddle East Technical UniversityAnkaraTürkiye
- CanSyl LaboratoriesMiddle East Technical UniversityAnkaraTürkiye
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30
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Seol SI, Kang IS, Lee JS, Lee JK, Kim C. Taurine Chloramine-Mediated Nrf2 Activation and HO-1 Induction Confer Protective Effects in Astrocytes. Antioxidants (Basel) 2024; 13:169. [PMID: 38397767 PMCID: PMC10886344 DOI: 10.3390/antiox13020169] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2023] [Revised: 01/23/2024] [Accepted: 01/25/2024] [Indexed: 02/25/2024] Open
Abstract
Taurine is ubiquitously distributed in mammalian tissues, with the highest levels in the brain, heart, and leukocytes. Taurine reacts with hypochlorous acid (HOCl) to produce taurine chloramine (Tau-Cl) via the myeloperoxidase (MPO) system. In this study, we elucidated the antioxidative and protective effects of Tau-Cl in astrocytes. Tau-Cl increased the expression and nuclear translocation of nuclear factor E2-related factor (Nrf2) and the expression of Nrf2-regulated antioxidant genes, including heme oxygenase 1 (HO-1). Nrf2 activity is negatively regulated by Kelch-like ECH-associated protein 1 (Keap1). Tau-Cl decreased the level of the reduced thiol groups of Keap1, resulting in the disruption of the Keap1-Nrf2 complex. Consequently, Tau-Cl rescued the H2O2-induced cell death by enhancing HO-1 expression and suppressing reactive oxygen species. In conclusion, Tau-Cl confers protective effects in astrocytes by disrupting the Keap1-Nrf2 complex, thereby promoting Nrf2 translocation to the nucleus, wherein it binds to the antioxidant response element (ARE) and accelerates the transcription of antioxidant genes. Therefore, in astrocytes, the activation of the Keap1-Nrf2-ARE pathway by Tau-Cl may increase antioxidants and anti-inflammatory mediators as well as other cytoprotective proteins, conferring protection against brain infection and injury.
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Affiliation(s)
- Song-I Seol
- Department of Anatomy, Inha University School of Medicine, Incheon 22212, Republic of Korea;
| | - In Soon Kang
- Laboratory of Leukocyte Signaling Research, Department of Pharmacology, Inha University School of Medicine, Incheon 22212, Republic of Korea; (I.S.K.); (J.S.L.)
| | - Ji Seok Lee
- Laboratory of Leukocyte Signaling Research, Department of Pharmacology, Inha University School of Medicine, Incheon 22212, Republic of Korea; (I.S.K.); (J.S.L.)
- BK21, Program in Biomedical Science & Engineering, Inha University, Incheon 22212, Republic of Korea
| | - Ja-Kyeong Lee
- Department of Anatomy, Inha University School of Medicine, Incheon 22212, Republic of Korea;
| | - Chaekyun Kim
- Laboratory of Leukocyte Signaling Research, Department of Pharmacology, Inha University School of Medicine, Incheon 22212, Republic of Korea; (I.S.K.); (J.S.L.)
- BK21, Program in Biomedical Science & Engineering, Inha University, Incheon 22212, Republic of Korea
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31
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Amason ME, Li L, Harvest CK, Lacey CA, Miao EA. Validation of the Intermolecular Disulfide Bond in Caspase-2. BIOLOGY 2024; 13:49. [PMID: 38248479 PMCID: PMC10813798 DOI: 10.3390/biology13010049] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/12/2023] [Revised: 01/05/2024] [Accepted: 01/15/2024] [Indexed: 01/23/2024]
Abstract
Caspases are a family of proteins involved in cell death. Although several caspase members have been well characterized, caspase-2 remains enigmatic. Caspase-2 has been implicated in several phenotypes, but there has been no consensus in the field about its upstream activating signals or its downstream protein targets. In addition, the unique ability of caspase-2 to form a disulfide-bonded dimer has not been studied in depth. Herein, we investigate the disulfide bond in the context of inducible dimerization, showing that disulfide bond formation is dimerization dependent. We also explore and review several stimuli published in the caspase-2 field, test ferroptosis-inducing stimuli, and study in vivo infection models. We hypothesize that the disulfide bond will ultimately prove to be essential for the evolved function of caspase-2. Proving this will require the discovery of cell death phenotypes where caspase-2 is definitively essential.
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Affiliation(s)
- Megan E. Amason
- Department of Integrative Immunobiology, Duke University School of Medicine, Durham, NC 27710, USA
- Department of Molecular Genetics and Microbiology, Duke University School of Medicine, Durham, NC 27710, USA
- Department of Microbiology and Immunology, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
- Department of Pathology, Duke University School of Medicine, Durham, NC 27710, USA
- Department of Cell Biology, Duke University School of Medicine, Durham, NC 27710, USA
| | - Lupeng Li
- Department of Integrative Immunobiology, Duke University School of Medicine, Durham, NC 27710, USA
- Department of Molecular Genetics and Microbiology, Duke University School of Medicine, Durham, NC 27710, USA
- Department of Pathology, Duke University School of Medicine, Durham, NC 27710, USA
- Department of Cell Biology, Duke University School of Medicine, Durham, NC 27710, USA
| | - Carissa K. Harvest
- Department of Integrative Immunobiology, Duke University School of Medicine, Durham, NC 27710, USA
- Department of Molecular Genetics and Microbiology, Duke University School of Medicine, Durham, NC 27710, USA
- Department of Microbiology and Immunology, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
- Department of Pathology, Duke University School of Medicine, Durham, NC 27710, USA
- Department of Cell Biology, Duke University School of Medicine, Durham, NC 27710, USA
| | - Carolyn A. Lacey
- Department of Integrative Immunobiology, Duke University School of Medicine, Durham, NC 27710, USA
- Department of Molecular Genetics and Microbiology, Duke University School of Medicine, Durham, NC 27710, USA
- Department of Pathology, Duke University School of Medicine, Durham, NC 27710, USA
- Department of Cell Biology, Duke University School of Medicine, Durham, NC 27710, USA
| | - Edward A. Miao
- Department of Integrative Immunobiology, Duke University School of Medicine, Durham, NC 27710, USA
- Department of Molecular Genetics and Microbiology, Duke University School of Medicine, Durham, NC 27710, USA
- Department of Pathology, Duke University School of Medicine, Durham, NC 27710, USA
- Department of Cell Biology, Duke University School of Medicine, Durham, NC 27710, USA
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32
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Zafar S, Fatima SI, Schmitz M, Zerr I. Current Technologies Unraveling the Significance of Post-Translational Modifications (PTMs) as Crucial Players in Neurodegeneration. Biomolecules 2024; 14:118. [PMID: 38254718 PMCID: PMC10813409 DOI: 10.3390/biom14010118] [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: 12/14/2023] [Revised: 01/09/2024] [Accepted: 01/11/2024] [Indexed: 01/24/2024] Open
Abstract
Neurodegenerative disorders, such as Parkinson's disease, Alzheimer's disease, and Huntington's disease, are identified and characterized by the progressive loss of neurons and neuronal dysfunction, resulting in cognitive and motor impairment. Recent research has shown the importance of PTMs, such as phosphorylation, acetylation, methylation, ubiquitination, sumoylation, nitration, truncation, O-GlcNAcylation, and hydroxylation, in the progression of neurodegenerative disorders. PTMs can alter protein structure and function, affecting protein stability, localization, interactions, and enzymatic activity. Aberrant PTMs can lead to protein misfolding and aggregation, impaired degradation, and clearance, and ultimately, to neuronal dysfunction and death. The main objective of this review is to provide an overview of the PTMs involved in neurodegeneration, their underlying mechanisms, methods to isolate PTMs, and the potential therapeutic targets for these disorders. The PTMs discussed in this article include tau phosphorylation, α-synuclein and Huntingtin ubiquitination, histone acetylation and methylation, and RNA modifications. Understanding the role of PTMs in neurodegenerative diseases may provide new therapeutic strategies for these devastating disorders.
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Affiliation(s)
- Saima Zafar
- Department of Neurology, Clinical Dementia Center and DZNE, University Medical Center Goettingen (UMG), Georg-August University, Robert-Koch-Str. 40, 37075 Goettingen, Germany
- Biomedical Engineering and Sciences Department, School of Mechanical and Manufacturing Engineering (SMME), National University of Sciences and Technology (NUST), Bolan Road, H-12, Islamabad 44000, Pakistan
| | - Shehzadi Irum Fatima
- Department of Neurology, Clinical Dementia Center and DZNE, University Medical Center Goettingen (UMG), Georg-August University, Robert-Koch-Str. 40, 37075 Goettingen, Germany
| | - Matthias Schmitz
- Department of Neurology, Clinical Dementia Center and DZNE, University Medical Center Goettingen (UMG), Georg-August University, Robert-Koch-Str. 40, 37075 Goettingen, Germany
| | - Inga Zerr
- Department of Neurology, Clinical Dementia Center and DZNE, University Medical Center Goettingen (UMG), Georg-August University, Robert-Koch-Str. 40, 37075 Goettingen, Germany
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An S, Lin Y, Ye T, Bai T, He D, Guo L, Qian Z, Li L, Liu H, Wang J. An extra-large Stokes shift near-infrared fluorescent probe for specific detection and imaging of cysteine. Talanta 2024; 267:125247. [PMID: 37769499 DOI: 10.1016/j.talanta.2023.125247] [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: 06/24/2023] [Revised: 09/21/2023] [Accepted: 09/23/2023] [Indexed: 10/03/2023]
Abstract
Cysteine (Cys) plays a crucial role in numerous physiological and pathological processes. Therefore, it is imperative to design a highly selective and sensitive near-infrared (NIR) fluorescent probe to monitor Cys. In this study, we have developed a novel NIR fluorescent probe XA based on Xanthene hybrid tetrahydro-acridine salt dye for specifically tracking of Cys, where a chlorine-substituted tetrahydro-acridine acts as a high Cys-reactive site and water-soluble group. Probe XA exhibits a remarkable "turn-on" NIR emission (830 nm) with an extra-large Stokes shift (305 nm) for monitoring Cys. It also has a high selectivity, rapid response time (6 min) and high sensitivity (LOD as 0.5 μM). We fully characterized and discussed the sensing mechanism of XA toward Cys using HPLC and MS spectrums, as well as quantum theory calculations. Furthermore, the excellent properties of NIR fluorescent detection allow this novel probe to successfully monitor fluctuations of exogenous and endogenous Cys concentration levels in living cells and in vivo.
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Affiliation(s)
- Shixuan An
- Jiaxing Key Laboratory of Molecular Recognition and Sensing, College of Biological, Chemical Sciences and Engineering, Jiaxing University, Jiaxing, 314001, China; College of Chemistry and Material Sciences, Zhejiang Normal University, Jinhua, 321004, China
| | - Yanfei Lin
- Jiaxing Key Laboratory of Molecular Recognition and Sensing, College of Biological, Chemical Sciences and Engineering, Jiaxing University, Jiaxing, 314001, China.
| | - Tianqing Ye
- Jiaxing Key Laboratory of Molecular Recognition and Sensing, College of Biological, Chemical Sciences and Engineering, Jiaxing University, Jiaxing, 314001, China
| | - Tianwen Bai
- Jiaxing Key Laboratory of Molecular Recognition and Sensing, College of Biological, Chemical Sciences and Engineering, Jiaxing University, Jiaxing, 314001, China
| | - Danyi He
- Jiaxing Key Laboratory of Molecular Recognition and Sensing, College of Biological, Chemical Sciences and Engineering, Jiaxing University, Jiaxing, 314001, China
| | - Longhua Guo
- Jiaxing Key Laboratory of Molecular Recognition and Sensing, College of Biological, Chemical Sciences and Engineering, Jiaxing University, Jiaxing, 314001, China
| | - Zhaosheng Qian
- College of Chemistry and Material Sciences, Zhejiang Normal University, Jinhua, 321004, China
| | - Lei Li
- Jiaxing Key Laboratory of Molecular Recognition and Sensing, College of Biological, Chemical Sciences and Engineering, Jiaxing University, Jiaxing, 314001, China
| | - Haiying Liu
- Department of Chemistry, Michigan Technological University, 1400 Townsend Drive, Houghton, MI, 49931, USA.
| | - Jianbo Wang
- Jiaxing Key Laboratory of Molecular Recognition and Sensing, College of Biological, Chemical Sciences and Engineering, Jiaxing University, Jiaxing, 314001, China.
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34
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Redolfi-Bristol D, Mangiameli A, Yamamoto K, Marin E, Zhu W, Mazda O, Riello P, Pezzotti G. Ammonia Toxicity and Associated Protein Oxidation: A Single-Cell Surface Enhanced Raman Spectroscopy Study. Chem Res Toxicol 2024; 37:117-125. [PMID: 38146714 PMCID: PMC10792663 DOI: 10.1021/acs.chemrestox.3c00368] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2023] [Accepted: 12/19/2023] [Indexed: 12/27/2023]
Abstract
Ammonia (NH3) is a commonly used industrial chemical to which exposure at high concentrations can result in severe skin damage. Moreover, high levels of ammonia in the human body can lead to hyperammonemia conditions and enhanced cancer metabolism. In this work, the toxicity mechanism of NH3 has been studied against human dermal fibroblast (HDF) cells using surface-enhanced Raman spectroscopy (SERS). For this purpose, gold nanoparticles of size 50 nm have been prepared and used as probes for Raman signal enhancement, after being internalized inside HDF cells. Following the exposure to ammonia, HDF cells showed a significant variation in the protein ternary structure's signals, demonstrating their denaturation and oxidation process, together with early signs of apoptosis. Meaningful changes were observed especially in the Raman vibrations of sulfur-containing amino acids (cysteine and methionine) together with aromatic residues. Fluorescence microscopy revealed the formation of reactive oxygen and nitrogen species in cells, which confirmed their stressed condition and to whom the causes of protein degradation can be attributed. These findings can provide new insights into the mechanism of ammonia toxicity and protein oxidation at a single-cell level, demonstrating the high potential of the SERS technique in investigating the cellular response to toxic compounds.
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Affiliation(s)
- Davide Redolfi-Bristol
- Ceramic
Physics Laboratory, Kyoto Institute of Technology, Sakyo-ku, Matsugasaki, Kyoto 606-8585, Japan
- Department
of Immunology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kamigyo-ku, 465 Kajii-cho, Kyoto 602-8566, Japan
- Dipartimento
di Scienze Molecolari e Nanosistemi, Università
Ca’ Foscari di Venezia, Via Torino 155, Venezia 30172, Italia
| | - Alessandro Mangiameli
- Ceramic
Physics Laboratory, Kyoto Institute of Technology, Sakyo-ku, Matsugasaki, Kyoto 606-8585, Japan
- Dipartimento
di Scienze Molecolari e Nanosistemi, Università
Ca’ Foscari di Venezia, Via Torino 155, Venezia 30172, Italia
| | - Kenta Yamamoto
- Department
of Immunology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kamigyo-ku, 465 Kajii-cho, Kyoto 602-8566, Japan
| | - Elia Marin
- Ceramic
Physics Laboratory, Kyoto Institute of Technology, Sakyo-ku, Matsugasaki, Kyoto 606-8585, Japan
| | - Wenliang Zhu
- Ceramic
Physics Laboratory, Kyoto Institute of Technology, Sakyo-ku, Matsugasaki, Kyoto 606-8585, Japan
| | - Osam Mazda
- Department
of Immunology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kamigyo-ku, 465 Kajii-cho, Kyoto 602-8566, Japan
| | - Pietro Riello
- Dipartimento
di Scienze Molecolari e Nanosistemi, Università
Ca’ Foscari di Venezia, Via Torino 155, Venezia 30172, Italia
| | - Giuseppe Pezzotti
- Ceramic
Physics Laboratory, Kyoto Institute of Technology, Sakyo-ku, Matsugasaki, Kyoto 606-8585, Japan
- Department
of Molecular Genetics, Institute of Biomedical Science, Kansai Medical University, 2-5-1 Shinmachi, Hiraka-ta, Osaka 573-1010, Japan
- Department
of Immunology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kamigyo-ku, 465 Kajii-cho, Kyoto 602-8566, Japan
- Department
of Dental Medicine, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kamigyo-ku, Kyoto 602-8566, Japan
- Department
of Orthopedic Surgery, Tokyo Medical University, 6-7-1 Nishi-Shinjuku, Shinjuku-ku, Tokyo 160-0023, Japan
- Department
of Applied Science and Technology, Politecnico
di Torino, Corso Duca
degli Abruzzi 24, Torino 10129, Italy
- Dipartimento
di Scienze Molecolari e Nanosistemi, Università
Ca’ Foscari di Venezia, Via Torino 155, Venezia 30172, Italia
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35
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Yang M, Silverstein RL. Targeting Cysteine Oxidation in Thrombotic Disorders. Antioxidants (Basel) 2024; 13:83. [PMID: 38247507 PMCID: PMC10812781 DOI: 10.3390/antiox13010083] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2023] [Revised: 12/29/2023] [Accepted: 01/05/2024] [Indexed: 01/23/2024] Open
Abstract
Oxidative stress increases the risk for clinically significant thrombotic events, yet the mechanisms by which oxidants become prothrombotic are unclear. In this review, we provide an overview of cysteine reactivity and oxidation. We then highlight recent findings on cysteine oxidation events in oxidative stress-related thrombosis. Special emphasis is on the signaling pathway induced by a platelet membrane protein, CD36, in dyslipidemia, and by protein disulfide isomerase (PDI), a member of the thiol oxidoreductase family of proteins. Antioxidative and chemical biology approaches to target cysteine are discussed. Lastly, the knowledge gaps in the field are highlighted as they relate to understanding how oxidative cysteine modification might be targeted to limit thrombosis.
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Affiliation(s)
- Moua Yang
- Division of Hemostasis and Thrombosis, Beth Israel Deaconess Medical Center, Harvard Medical School, 3 Blackfan Circle, CLS-924, Boston, MA 02115, USA
| | - Roy L. Silverstein
- Department of Medicine, Medical College of Wisconsin, Hub 8745, 8701 W Watertown Plank Rd., Milwaukee, WI 53226, USA
- Versiti Blood Research Institute, Milwaukee, WI 53226, USA
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Funk LM, Poschmann G, Rabe von Pappenheim F, Chari A, Stegmann KM, Dickmanns A, Wensien M, Eulig N, Paknia E, Heyne G, Penka E, Pearson AR, Berndt C, Fritz T, Bazzi S, Uranga J, Mata RA, Dobbelstein M, Hilgenfeld R, Curth U, Tittmann K. Multiple redox switches of the SARS-CoV-2 main protease in vitro provide opportunities for drug design. Nat Commun 2024; 15:411. [PMID: 38195625 PMCID: PMC10776599 DOI: 10.1038/s41467-023-44621-0] [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: 12/03/2022] [Accepted: 12/21/2023] [Indexed: 01/11/2024] Open
Abstract
Besides vaccines, the development of antiviral drugs targeting SARS-CoV-2 is critical for preventing future COVID outbreaks. The SARS-CoV-2 main protease (Mpro), a cysteine protease with essential functions in viral replication, has been validated as an effective drug target. Here, we show that Mpro is subject to redox regulation in vitro and reversibly switches between the enzymatically active dimer and the functionally dormant monomer through redox modifications of cysteine residues. These include a disulfide-dithiol switch between the catalytic cysteine C145 and cysteine C117, and generation of an allosteric cysteine-lysine-cysteine SONOS bridge that is required for structural stability under oxidative stress conditions, such as those exerted by the innate immune system. We identify homo- and heterobifunctional reagents that mimic the redox switching and inhibit Mpro activity. The discovered redox switches are conserved in main proteases from other coronaviruses, e.g. MERS-CoV and SARS-CoV, indicating their potential as common druggable sites.
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Affiliation(s)
- Lisa-Marie Funk
- Department of Molecular Enzymology, Göttingen Center of Molecular Biosciences, Georg-August University Göttingen, Julia-Lermontowa-Weg 3, D-37077, Göttingen, Germany
- Max-Planck-Institute for Multidisciplinary Sciences, Am Fassberg 11, D-37077, Göttingen, Germany
| | - Gereon Poschmann
- Institute of Molecular Medicine, Proteome Research, Medical Faculty and University Hospital Düsseldorf, Heinrich-Heine University Düsseldorf, Universitätsstraße 1, 40225, Düsseldorf, Germany
| | - Fabian Rabe von Pappenheim
- Department of Molecular Enzymology, Göttingen Center of Molecular Biosciences, Georg-August University Göttingen, Julia-Lermontowa-Weg 3, D-37077, Göttingen, Germany
- Max-Planck-Institute for Multidisciplinary Sciences, Am Fassberg 11, D-37077, Göttingen, Germany
| | - Ashwin Chari
- Department of Structural Dynamics, Max-Planck-Institute for Multidisciplinary Sciences, Am Fassberg 11, D-37077, Göttingen, Germany
| | - Kim M Stegmann
- Institute of Molecular Oncology, University Medical Center Göttingen, Justus-von-Liebig-Weg 11, 37077, Göttingen, Germany
| | - Antje Dickmanns
- Institute of Molecular Oncology, University Medical Center Göttingen, Justus-von-Liebig-Weg 11, 37077, Göttingen, Germany
| | - Marie Wensien
- Department of Molecular Enzymology, Göttingen Center of Molecular Biosciences, Georg-August University Göttingen, Julia-Lermontowa-Weg 3, D-37077, Göttingen, Germany
- Max-Planck-Institute for Multidisciplinary Sciences, Am Fassberg 11, D-37077, Göttingen, Germany
| | - Nora Eulig
- Department of Molecular Enzymology, Göttingen Center of Molecular Biosciences, Georg-August University Göttingen, Julia-Lermontowa-Weg 3, D-37077, Göttingen, Germany
- Max-Planck-Institute for Multidisciplinary Sciences, Am Fassberg 11, D-37077, Göttingen, Germany
| | - Elham Paknia
- Department of Structural Dynamics, Max-Planck-Institute for Multidisciplinary Sciences, Am Fassberg 11, D-37077, Göttingen, Germany
| | - Gabi Heyne
- Department of Structural Dynamics, Max-Planck-Institute for Multidisciplinary Sciences, Am Fassberg 11, D-37077, Göttingen, Germany
| | - Elke Penka
- Department of Molecular Enzymology, Göttingen Center of Molecular Biosciences, Georg-August University Göttingen, Julia-Lermontowa-Weg 3, D-37077, Göttingen, Germany
- Max-Planck-Institute for Multidisciplinary Sciences, Am Fassberg 11, D-37077, Göttingen, Germany
| | - Arwen R Pearson
- Institute for Nanostructure and Solid-State Physics, Hamburg Centre for Ultrafast Imaging, Hamburg University, HARBOR, Luruper Chaussee 149, Hamburg, 22761, Germany
| | - Carsten Berndt
- Department of Neurology, Medical Faculty, Heinrich-Heine University Düsseldorf, Moorenstr. 5, 40225, Düsseldorf, Germany
| | - Tobias Fritz
- Institute of Physical Chemistry, Georg-August University Göttingen, Tammannstraße 6, D-37077, Göttingen, Germany
| | - Sophia Bazzi
- Institute of Physical Chemistry, Georg-August University Göttingen, Tammannstraße 6, D-37077, Göttingen, Germany
| | - Jon Uranga
- Institute of Physical Chemistry, Georg-August University Göttingen, Tammannstraße 6, D-37077, Göttingen, Germany
| | - Ricardo A Mata
- Institute of Physical Chemistry, Georg-August University Göttingen, Tammannstraße 6, D-37077, Göttingen, Germany
| | - Matthias Dobbelstein
- Institute of Molecular Oncology, University Medical Center Göttingen, Justus-von-Liebig-Weg 11, 37077, Göttingen, Germany
| | - Rolf Hilgenfeld
- Institute for Biochemistry, Lübeck University, Ratzeburger Allee 160, 23562, Lübeck, Germany
- German Center for Infection Research, Hamburg - Lübeck-Borstel-Riems Site, University of Lübeck, Ratzeburger Allee 160, 23562, Lübeck, Germany
| | - Ute Curth
- Institute for Biophysical Chemistry, Hannover Medical School, Carl-Neuberg-Straße 1, 30625, Hannover, Germany
| | - Kai Tittmann
- Department of Molecular Enzymology, Göttingen Center of Molecular Biosciences, Georg-August University Göttingen, Julia-Lermontowa-Weg 3, D-37077, Göttingen, Germany.
- Max-Planck-Institute for Multidisciplinary Sciences, Am Fassberg 11, D-37077, Göttingen, Germany.
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Zheng B, Zhang P, Lv Q, Wu T, Liu Y, Tang J, Ma Y, Cheng L, Xu L, Wang Y, Xue Y, Liu J, Ren J. Development and preclinical evaluation of multifunctional hydrogel for precise thermal protection during thermal ablation. Bioact Mater 2024; 31:119-135. [PMID: 37637083 PMCID: PMC10448243 DOI: 10.1016/j.bioactmat.2023.08.010] [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: 06/05/2023] [Revised: 08/07/2023] [Accepted: 08/08/2023] [Indexed: 08/29/2023] Open
Abstract
Image-guided thermal ablation (TA), which is less invasive, has been widely applied for treating various kinds of tumors. However, TA still poses the potential risk of thermal damage to sensitive tissue nearby. Therefore, an adjunctive thermoprotective hydrodissection technique with constant injection of 5% glucose (5% Glu) has currently been adopted for clinical application, but this may be hazardous to humans. In this study, a multifunctional hyaluronic acid-based hydrogel (HA-Dc) was developed for hydrodissection. Compared with 5% Glu (the most clinically used solution) and the previously reported F127 hydrogel, the HA-Dc hydrogel was studied in vitro in a porcine liver model and in vivo in a rabbit model and showed good injectability and better tissue retention, stability, and thermoprotective properties throughout the TA procedure. Furthermore, in the preclinical evaluation in a Macaca fascicularis (M. fascicularis) model, HA-Dc showed excellent performance in terms of stricter neuroprotection compared with 5% Glu. In addition, the HA-Dc hydrogel with good biocompatibility and controllable degradation behavior in vivo could be a promising platform for thermal protection during clinical TA procedures.
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Affiliation(s)
- Bowen Zheng
- Department of Medical Ultrasonics, The Third Affiliated Hospital of Sun Yat-sen University, Guangdong Province Key Laboratory of Hepatology Research, Multiple Disciplinary Team Center of Thyroid Diseases, No. 600, Tianhe Road, Guangzhou, Guangdong, 510630, PR China
| | - Peng Zhang
- School of Biomedical Engineering, Shenzhen Campus of Sun Yat-sen University, No.66, Gongchang Road, Shenzhen, Guangdong, 518107, PR China
| | - Qijun Lv
- Department of Medical Ultrasonics, The Third Affiliated Hospital of Sun Yat-sen University, Guangdong Province Key Laboratory of Hepatology Research, Multiple Disciplinary Team Center of Thyroid Diseases, No. 600, Tianhe Road, Guangzhou, Guangdong, 510630, PR China
| | - Tao Wu
- Department of Medical Ultrasonics, The Third Affiliated Hospital of Sun Yat-sen University, Guangdong Province Key Laboratory of Hepatology Research, Multiple Disciplinary Team Center of Thyroid Diseases, No. 600, Tianhe Road, Guangzhou, Guangdong, 510630, PR China
| | - Yadong Liu
- School of Biomedical Engineering, Shenzhen Campus of Sun Yat-sen University, No.66, Gongchang Road, Shenzhen, Guangdong, 518107, PR China
| | - Junjie Tang
- School of Biomedical Engineering, Shenzhen Campus of Sun Yat-sen University, No.66, Gongchang Road, Shenzhen, Guangdong, 518107, PR China
| | - Yanping Ma
- Department of Medical Ultrasonics, The Third Affiliated Hospital of Sun Yat-sen University, Guangdong Province Key Laboratory of Hepatology Research, Multiple Disciplinary Team Center of Thyroid Diseases, No. 600, Tianhe Road, Guangzhou, Guangdong, 510630, PR China
| | - Lili Cheng
- School of Biomedical Engineering, Shenzhen Campus of Sun Yat-sen University, No.66, Gongchang Road, Shenzhen, Guangdong, 518107, PR China
| | - Langtao Xu
- School of Biomedical Engineering, Shenzhen Campus of Sun Yat-sen University, No.66, Gongchang Road, Shenzhen, Guangdong, 518107, PR China
| | - Yizhen Wang
- Department of Medical Ultrasonics, The Third Affiliated Hospital of Sun Yat-sen University, Guangdong Province Key Laboratory of Hepatology Research, Multiple Disciplinary Team Center of Thyroid Diseases, No. 600, Tianhe Road, Guangzhou, Guangdong, 510630, PR China
| | - Yifan Xue
- School of Biomedical Engineering, Shenzhen Campus of Sun Yat-sen University, No.66, Gongchang Road, Shenzhen, Guangdong, 518107, PR China
| | - Jie Liu
- School of Biomedical Engineering, Shenzhen Campus of Sun Yat-sen University, No.66, Gongchang Road, Shenzhen, Guangdong, 518107, PR China
| | - Jie Ren
- Department of Medical Ultrasonics, The Third Affiliated Hospital of Sun Yat-sen University, Guangdong Province Key Laboratory of Hepatology Research, Multiple Disciplinary Team Center of Thyroid Diseases, No. 600, Tianhe Road, Guangzhou, Guangdong, 510630, PR China
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38
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Kukulage DSK, Yapa Abeywardana M, Matarage Don NNJ, Hu RM, Shishikura K, Matthews ML, Ahn YH. Chemoproteomic strategy identified p120-catenin glutathionylation regulates E-cadherin degradation and cell migration. Cell Chem Biol 2023; 30:1542-1556.e9. [PMID: 37714153 PMCID: PMC10840712 DOI: 10.1016/j.chembiol.2023.08.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2022] [Revised: 05/30/2023] [Accepted: 08/15/2023] [Indexed: 09/17/2023]
Abstract
Identification of cysteines with high oxidation susceptibility is important for understanding redox-mediated biological processes. In this report, we report a chemical proteomic strategy that finds cysteines with high susceptibility to S-glutathionylation. Our proteomic strategy, named clickable glutathione-based isotope-coded affinity tag (G-ICAT), identified 1,518 glutathionylated cysteines while determining their relative levels of glutathionylated and reduced forms upon adding hydrogen peroxide. Among identified cysteines, we demonstrated that CTNND1 (p120) C692 has high susceptibility to glutathionylation. Also, p120 wild type (WT), compared to C692S, induces its dissociation from E-cadherin under oxidative stress, such as glucose depletion. p120 and E-cadherin dissociation correlated with E-cadherin destabilization via its proteasomal degradation. Lastly, we showed that p120 WT, compared to C692S, increases migration and invasion of MCF7 cells under glucose depletion, supporting a model that p120 C692 glutathionylation increases cell migration and invasion by destabilization of E-cadherin, a core player in cell-cell adhesion.
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Affiliation(s)
| | | | | | - Ren-Ming Hu
- Department of Chemistry, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Kyosuke Shishikura
- Department of Chemistry, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Megan L Matthews
- Department of Chemistry, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Young-Hoon Ahn
- Department of Chemistry, Drexel University, Philadelphia, PA 19104, USA.
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39
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Han M, Silva SM, Russo MJ, Desroches PE, Lei W, Quigley AF, Kapsa RMI, Moulton SE, Stoddart PR, Greene GW. Lubricin (PRG-4) anti-fouling coating for surface-enhanced Raman spectroscopy biosensing: towards a hierarchical separation system for analysis of biofluids. Analyst 2023; 149:63-75. [PMID: 37933547 DOI: 10.1039/d3an00910f] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2023]
Abstract
Surface-enhanced Raman Spectroscopy (SERS) is a powerful optical sensing technique that amplifies the signal generated by Raman scattering by many orders of magnitude. Although the extreme sensitivity of SERS enables an extremely low limit of detection, even down to single molecule levels, it is also a primary limitation of the technique due to its tendency to equally amplify 'noise' generated by non-specifically adsorbed molecules at (or near) SERS-active interfaces. Eliminating interference noise is thus critically important to SERS biosensing and typically involves onerous extraction/purification/washing procedures and/or heavy dilution of biofluid samples. Consequently, direct analysis within biofluid samples or in vivo environments is practically impossible. In this study, an anti-fouling coating of recombinant human Lubricin (LUB) was self-assembled onto AuNP-modified glass slides via a simple drop-casting method. A series of Raman spectra were collected using rhodamine 6G (R6G) as a model analyte, which was spiked into NaCl solution or unprocessed whole blood. Likewise, we demonstrate the same sensing system for the quantitative detection of L-cysteine spiked in undiluted milk. It was demonstrated for the first time that LUB coating can mitigate the deleterious effect of fouling in a SERS sensor without compromising the detection of a target analyte, even in a highly fouling, complex medium like whole blood or milk. This feat is achieved through a molecular sieving property of LUB that separates small analytes from large fouling species directly at the sensing interface resulting in SERS spectra with low background (i.e., noise) levels and excellent analyte spectral fidelity. These findings indicate the great potential for using LUB coatings together with an analyte-selective layer to form a hierarchical separation system for SERS sensing of relevant analytes directly in complex biological media, aquaculture, food matrix or environmental samples.
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Affiliation(s)
- Mingyu Han
- Institute for Frontier Materials, Deakin University, Waurn Ponds, Victoria 3216, Australia.
- The Aikenhead Centre for Medical Discovery, St Vincent's Hospital Melbourne, Fitzroy, Victoria 3065, Australia
- Commonwealth Scientific and Industrial Research Organization (CSIRO), Agriculture and Food, 671 Sneydes Road, Werribee, Victoria, 3030, Australia
| | - Saimon M Silva
- ARC Centre of Excellence for Electromaterials Science, School of Science, Computing and Engineering Technologies, Swinburne University of Technology, Hawthorn, Victoria 3122, Australia
- The Aikenhead Centre for Medical Discovery, St Vincent's Hospital Melbourne, Fitzroy, Victoria 3065, Australia
- Iverson Health Innovation Research Institute, Swinburne University of Technology, Hawthorn, Victoria 3122, Australia
| | - Matthew J Russo
- Institute for Frontier Materials, Deakin University, Waurn Ponds, Victoria 3216, Australia.
| | - Pauline E Desroches
- Institute for Frontier Materials, Deakin University, Waurn Ponds, Victoria 3216, Australia.
| | - Weiwei Lei
- Institute for Frontier Materials, Deakin University, Waurn Ponds, Victoria 3216, Australia.
| | - Anita F Quigley
- The Aikenhead Centre for Medical Discovery, St Vincent's Hospital Melbourne, Fitzroy, Victoria 3065, Australia
- School of Electrical and Biomedical Engineering, RMIT University, Melbourne, Victoria 3001, Australia
| | - Robert M I Kapsa
- The Aikenhead Centre for Medical Discovery, St Vincent's Hospital Melbourne, Fitzroy, Victoria 3065, Australia
- School of Electrical and Biomedical Engineering, RMIT University, Melbourne, Victoria 3001, Australia
| | - Simon E Moulton
- ARC Centre of Excellence for Electromaterials Science, School of Science, Computing and Engineering Technologies, Swinburne University of Technology, Hawthorn, Victoria 3122, Australia
- The Aikenhead Centre for Medical Discovery, St Vincent's Hospital Melbourne, Fitzroy, Victoria 3065, Australia
- Iverson Health Innovation Research Institute, Swinburne University of Technology, Hawthorn, Victoria 3122, Australia
| | - Paul R Stoddart
- School of Science, Computing and Engineering Technologies, Swinburne University of Technology, Hawthorn, Victoria 3122, Australia.
| | - George W Greene
- Institute for Frontier Materials, Deakin University, Waurn Ponds, Victoria 3216, Australia.
- ARC Centre of Excellence for Electromaterials Science, School of Science, Computing and Engineering Technologies, Swinburne University of Technology, Hawthorn, Victoria 3122, Australia
- The Aikenhead Centre for Medical Discovery, St Vincent's Hospital Melbourne, Fitzroy, Victoria 3065, Australia
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40
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Wei Y, Lu H, Jin L, Zhang Q, Jiang M, Tian G, Cao X. A simple indanone-based red emission fluorescent probe for the rapid detection of cysteine in vitro and in vivo. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2023; 303:123196. [PMID: 37515887 DOI: 10.1016/j.saa.2023.123196] [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: 04/29/2023] [Revised: 06/06/2023] [Accepted: 07/24/2023] [Indexed: 07/31/2023]
Abstract
Cysteine is a vital biothiols that plays an important role in numerous physiological and pathological processes. The development of simple molecule tools for detection and analysis Cys in subcellar environment is significant for further exploring their pathophysiological. In this work, a simple but activated fluorescent probe AMIA was constructed with a donor-π-accepter (D- π -A) structure, which using an indanone as the electron-withdrawing unit acting as the fluorophore, dimethylamino group attached to the position 4 of the benzene ring as the electron-donating, two double bonds as the linker group, and the acryloyl ester group as the trigger and response unit. This probe AMIA was exhibited highly selective and sensitive response to Cys over other amino acids and ions under physiological conditions. It was found that AMIA showed a red turn-on fluorescence response at 630 nm towards Cys with a large stroke shift of 170 nm and a very low detection limit of 26.3 nM. HRMS, 1H NMR and TD-DFT calculation further confirmed that the response mechanism is the Cys triggered the addition-cyclization reaction between AMIA' acryloyl group and Cys' sulfhydryl and amino unit, leading to the release of a red fluorescent dye AMIA-OH, which can be identified by naked eyes. Furthermore, AMIA was successfully applied for simultaneous determination of Cys in living cells and zebrafish with lower cytotoxicity and good cell permeability. We hope that this novel indanone-based probe AMIA will provide a new reference for visualized Cys in other complex biological system.
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Affiliation(s)
- Yifan Wei
- Key Laboratory of Catalysis in Shaanxi Province, Shaanxi University of Technology, Hanzhong 723000, PR China
| | - Hongzhao Lu
- School of Biological Science and Engineering, Shaanxi University of Technology, Hanzhong 723000, PR China
| | - Lingxia Jin
- Key Laboratory of Catalysis in Shaanxi Province, Shaanxi University of Technology, Hanzhong 723000, PR China
| | - Qiang Zhang
- Key Laboratory of Catalysis in Shaanxi Province, Shaanxi University of Technology, Hanzhong 723000, PR China
| | - Min Jiang
- Key Laboratory of Catalysis in Shaanxi Province, Shaanxi University of Technology, Hanzhong 723000, PR China
| | - Guanghui Tian
- Key Laboratory of Catalysis in Shaanxi Province, Shaanxi University of Technology, Hanzhong 723000, PR China
| | - Xiaoyan Cao
- Key Laboratory of Catalysis in Shaanxi Province, Shaanxi University of Technology, Hanzhong 723000, PR China.
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41
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Li W, Wang Y, Zhang R. Theoretical investigation on the sensing mechanism of a triphenylamine-benzofuran derived fluorescent probe for the detection of H 2S n. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2023; 302:123125. [PMID: 37478759 DOI: 10.1016/j.saa.2023.123125] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/19/2023] [Revised: 07/07/2023] [Accepted: 07/08/2023] [Indexed: 07/23/2023]
Abstract
As one of the members of reactive sulfur species, hydrogen polysulfide (H2Sn, n > 1) plays an important role in enzyme activity and nervous system regulations, and the sensing mechanism study is of great significance for the design of novel efficient probes. Herein, we investigated the sensing mechanism of an efficient triphenylamine-benzofuran-based probe (TBF-SS) towards H2Sn using DFT method. The inherent fluorescence quenching of the probe is dominated by the twisted intramolecular charge transfer (TICT) as revealed by the torsional potential curve calculations. When the nitro fluorophenyl group is replaced by a hydroxyl group in the reaction with H2Sn, the TICT is eliminated and the excited state can return to the ground state in a radiative way, leading to strong fluorescence emission.
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Affiliation(s)
- Wenzhi Li
- Institute of Molecular Sciences and Engineering, Institute of Frontier and Interdisciplinary Science, Shandong University, Qingdao 266237, PR China
| | - Yuxi Wang
- Institute of Molecular Sciences and Engineering, Institute of Frontier and Interdisciplinary Science, Shandong University, Qingdao 266237, PR China
| | - Ruiling Zhang
- Institute of Molecular Sciences and Engineering, Institute of Frontier and Interdisciplinary Science, Shandong University, Qingdao 266237, PR China.
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42
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Mejia‐Rodriguez D, Kim H, Sadler N, Li X, Bohutskyi P, Valiev M, Qian W, Cheung MS. PTM-Psi: A python package to facilitate the computational investigation of post-translational modification on protein structures and their impacts on dynamics and functions. Protein Sci 2023; 32:e4822. [PMID: 37902126 PMCID: PMC10659954 DOI: 10.1002/pro.4822] [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: 07/04/2023] [Revised: 10/21/2023] [Accepted: 10/25/2023] [Indexed: 10/31/2023]
Abstract
Post-translational modification (PTM) of a protein occurs after it has been synthesized from its genetic template, and involves chemical modifications of the protein's specific amino acid residues. Despite of the central role played by PTM in regulating molecular interactions, particularly those driven by reversible redox reactions, it remains challenging to interpret PTMs in terms of protein dynamics and function because there are numerous combinatorially enormous means for modifying amino acids in response to changes in the protein environment. In this study, we provide a workflow that allows users to interpret how perturbations caused by PTMs affect a protein's properties, dynamics, and interactions with its binding partners based on inferred or experimentally determined protein structure. This Python-based workflow, called PTM-Psi, integrates several established open-source software packages, thereby enabling the user to infer protein structure from sequence, develop force fields for non-standard amino acids using quantum mechanics, calculate free energy perturbations through molecular dynamics simulations, and score the bound complexes via docking algorithms. Using the S-nitrosylation of several cysteines on the GAP2 protein as an example, we demonstrated the utility of PTM-Psi for interpreting sequence-structure-function relationships derived from thiol redox proteomics data. We demonstrate that the S-nitrosylated cysteine that is exposed to the solvent indirectly affects the catalytic reaction of another buried cysteine over a distance in GAP2 protein through the movement of the two ligands. Our workflow tracks the PTMs on residues that are responsive to changes in the redox environment and lays the foundation for the automation of molecular and systems biology modeling.
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Affiliation(s)
- Daniel Mejia‐Rodriguez
- Physical Sciences Division, Physical and Computational Sciences Directorate, Pacific Northwest National LaboratoryRichlandWashingtonUSA
| | - Hoshin Kim
- Physical Sciences Division, Physical and Computational Sciences Directorate, Pacific Northwest National LaboratoryRichlandWashingtonUSA
| | - Natalie Sadler
- Biological Sciences Division, Earth and Biological Sciences Directorate, Pacific Northwest National LaboratoryRichlandWashingtonUSA
| | - Xiaolu Li
- Biological Sciences Division, Earth and Biological Sciences Directorate, Pacific Northwest National LaboratoryRichlandWashingtonUSA
| | - Pavlo Bohutskyi
- Biological Sciences Division, Earth and Biological Sciences Directorate, Pacific Northwest National LaboratoryRichlandWashingtonUSA
- Biological Systems EngineeringWashington State UniversityRichlandWashingtonUSA
| | - Marat Valiev
- Physical Sciences Division, Physical and Computational Sciences Directorate, Pacific Northwest National LaboratoryRichlandWashingtonUSA
| | - Wei‐Jun Qian
- Biological Sciences Division, Earth and Biological Sciences Directorate, Pacific Northwest National LaboratoryRichlandWashingtonUSA
| | - Margaret S. Cheung
- Physical Sciences Division, Physical and Computational Sciences Directorate, Pacific Northwest National LaboratoryRichlandWashingtonUSA
- Environmental Molecular Sciences LaboratoryRichlandWashingtonUSA
- University of WashingtonSeattleWashingtonUSA
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43
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Stair ER, Hicks LM. Recent advances in mass spectrometry-based methods to investigate reversible cysteine oxidation. Curr Opin Chem Biol 2023; 77:102389. [PMID: 37776664 DOI: 10.1016/j.cbpa.2023.102389] [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: 06/21/2023] [Revised: 08/10/2023] [Accepted: 08/31/2023] [Indexed: 10/02/2023]
Abstract
The post-translational modification of cysteine to diverse oxidative states is understood as a critical cellular mechanism to combat oxidative stress. To study the role of cysteine oxidation, cysteine enrichments and subsequent analysis via mass spectrometry are necessary. As such, technologies and methods are rapidly developing for sensitive and efficient enrichments of cysteines to further explore its role in signaling pathways. In this review, we analyze recent developments in methods to miniaturize cysteine enrichments, analyze the underexplored disulfide bound redoxome, and quantify site-specific cysteine oxidation. We predict that further development of these methods will improve cysteine coverage across more diverse organisms than those previously studied and elicit novel roles cysteines play in stress response.
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Affiliation(s)
- Evan R Stair
- Department of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Leslie M Hicks
- Department of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA.
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44
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Andrés CMC, Pérez de la Lastra JM, Andrés Juan C, Plou FJ, Pérez-Lebeña E. Chemistry of Hydrogen Sulfide-Pathological and Physiological Functions in Mammalian Cells. Cells 2023; 12:2684. [PMID: 38067112 PMCID: PMC10705518 DOI: 10.3390/cells12232684] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2023] [Revised: 11/02/2023] [Accepted: 11/20/2023] [Indexed: 12/18/2023] Open
Abstract
Hydrogen sulfide (H2S) was recognized as a gaseous signaling molecule, similar to nitric oxide (-NO) and carbon monoxide (CO). The aim of this review is to provide an overview of the formation of hydrogen sulfide (H2S) in the human body. H2S is synthesized by enzymatic processes involving cysteine and several enzymes, including cystathionine-β-synthase (CBS), cystathionine-γ-lyase (CSE), cysteine aminotransferase (CAT), 3-mercaptopyruvate sulfurtransferase (3MST) and D-amino acid oxidase (DAO). The physiological and pathological effects of hydrogen sulfide (H2S) on various systems in the human body have led to extensive research efforts to develop appropriate methods to deliver H2S under conditions that mimic physiological settings and respond to various stimuli. These functions span a wide spectrum, ranging from effects on the endocrine system and cellular lifespan to protection of liver and kidney function. The exact physiological and hazardous thresholds of hydrogen sulfide (H2S) in the human body are currently not well understood and need to be researched in depth. This article provides an overview of the physiological significance of H2S in the human body. It highlights the various sources of H2S production in different situations and examines existing techniques for detecting this gas.
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Affiliation(s)
| | - José Manuel Pérez de la Lastra
- Institute of Natural Products and Agrobiology, CSIC-Spanish Research Council, Avda. Astrofísico Fco. Sánchez, 3, 38206 La Laguna, Spain
| | - Celia Andrés Juan
- Cinquima Institute and Department of Organic Chemistry, Faculty of Sciences, Valladolid University, Paseo de Belén, 7, 47011 Valladolid, Spain;
| | - Francisco J. Plou
- Institute of Catalysis and Petrochemistry, CSIC-Spanish Research Council, 28049 Madrid, Spain;
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45
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Wilson C, Karttunen M, de Groot BL, Gapsys V. Accurately Predicting Protein p Ka Values Using Nonequilibrium Alchemy. J Chem Theory Comput 2023; 19:7833-7845. [PMID: 37820376 PMCID: PMC10653114 DOI: 10.1021/acs.jctc.3c00721] [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: 06/29/2023] [Indexed: 10/13/2023]
Abstract
The stability, solubility, and function of a protein depend on both its net charge and the protonation states of its individual residues. pKa is a measure of the tendency for a given residue to (de)protonate at a specific pH. Although pKa values can be resolved experimentally, theory and computation provide a compelling alternative. To this end, we assess the applicability of a nonequilibrium (NEQ) alchemical free energy method to the problem of pKa prediction. On a data set of 144 residues that span 13 proteins, we report an average unsigned error of 0.77 ± 0.09, 0.69 ± 0.09, and 0.52 ± 0.04 pK for aspartate, glutamate, and lysine, respectively. This is comparable to current state-of-the-art predictors and the accuracy recently reached using free energy perturbation methods (e.g., FEP+). Moreover, we demonstrate that our open-source, pmx-based approach can accurately resolve the pKa values of coupled residues and observe a substantial performance disparity associated with the lysine partial charges in Amber14SB/Amber99SB*-ILDN, for which an underused fix already exists.
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Affiliation(s)
- Carter
J. Wilson
- Department
of Mathematics, The University of Western
Ontario, N6A 5B7 London, Canada
- Centre
for Advanced Materials and Biomaterials Research (CAMBR), The University of Western Ontario, N6A 5B7 London, Canada
| | - Mikko Karttunen
- Centre
for Advanced Materials and Biomaterials Research (CAMBR), The University of Western Ontario, N6A 5B7 London, Canada
- Department
of Physics & Astronomy, The University
of Western Ontario, N6A
5B7 London, Canada
- Department
of Chemistry, The University of Western
Ontario, N6A 5B7 London, Canada
| | - Bert L. de Groot
- Computational
Biomolecular Dynamics Group, Department of Theoretical and Computational
Biophysics, Max Planck Institute for Multidisciplinary
Sciences, 37077 Göttingen, Germany
| | - Vytautas Gapsys
- Computational
Biomolecular Dynamics Group, Department of Theoretical and Computational
Biophysics, Max Planck Institute for Multidisciplinary
Sciences, 37077 Göttingen, Germany
- Computational
Chemistry, Janssen Research & Development, Janssen Pharmaceutica N. V., Turnhoutseweg 30, B-2340 Beerse, Belgium
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46
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Cobley JN. 50 shades of oxidative stress: A state-specific cysteine redox pattern hypothesis. Redox Biol 2023; 67:102936. [PMID: 37875063 PMCID: PMC10618833 DOI: 10.1016/j.redox.2023.102936] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2023] [Revised: 10/12/2023] [Accepted: 10/16/2023] [Indexed: 10/26/2023] Open
Abstract
Oxidative stress is biochemically complex. Like primary colours, specific reactive oxygen species (ROS) and antioxidant inputs can be mixed to create unique "shades" of oxidative stress. Even a minimal redox module comprised of just 12 (ROS & antioxidant) inputs and 3 outputs (oxidative damage, cysteine-dependent redox-regulation, or both) yields over half a million "shades" of oxidative stress. The present paper proposes the novel hypothesis that: state-specific shades of oxidative stress, such as a discrete disease, are associated with distinct tell-tale cysteine oxidation patterns. The patterns are encoded by many parameters, from the identity of the oxidised proteins, the cysteine oxidation type, and magnitude. The hypothesis is conceptually grounded in distinct ROS and antioxidant inputs coalescing to produce unique cysteine oxidation outputs. And considers the potential biological significance of the holistic cysteine oxidation outputs. The literature supports the existence of state-specific cysteine oxidation patterns. Measuring and manipulating these patterns offer promising avenues for advancing oxidative stress research. The pattern inspired hypothesis provides a framework for understanding the complex biochemical nature of state-specific oxidative stress.
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Affiliation(s)
- James N Cobley
- Cysteine redox technology Group, Life Science Innovation Centre, University of the Highlands and Islands, Inverness, IV2 5NA, Scotland, UK.
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47
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Zheng YL, Yu R, Li M, Fan C, Liu L, Zhang H, Kang W, Shi R, Li C, Li Y, Wang J, Zheng X. A dual-channel fluorescence probe for simultaneously visualizing cysteine and viscosity during drug-induced hepatotoxicity. Heliyon 2023; 9:e22276. [PMID: 38053901 PMCID: PMC10694328 DOI: 10.1016/j.heliyon.2023.e22276] [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: 08/16/2023] [Revised: 11/06/2023] [Accepted: 11/08/2023] [Indexed: 12/07/2023] Open
Abstract
Cysteine (Cys), one of the important participants in protecting cells from oxidative stress, is closely associated with the occurrence and development of various diseases. Moreover, cell viscosity as a pivotal microenvironmental parameter has recently attracted increasing attention due to its dominant role in governing intracellular signal transduction and diffusion of reactive metabolites. Thus, simultaneous detection of Cys and viscosity is imperative for investigating their pathophysiological functions and cross-link. Herein we present a mitochondria-targetable dual-channel fluorescence probe ABDSP by grafting the acrylate modified pyridinium unit to dimethylaminobenzene. Whilst the probe is a seemingly simple, it could simultaneously discriminate Cys and viscosity in a fashion of distinguishable signals. Furthermore, the probe was successfully employed for visualizing mitochondrial Cys and viscosity, and probe into their cross-link during acetaminophen-induced hepatotoxicity.
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Affiliation(s)
- Ya-Long Zheng
- Medicine College of Pingdingshan University, Pingdingshan, Henan 467000, China
| | - Ruixue Yu
- Medicine College of Pingdingshan University, Pingdingshan, Henan 467000, China
| | - Mengbo Li
- Medicine College of Pingdingshan University, Pingdingshan, Henan 467000, China
| | - Cailian Fan
- Medicine College of Pingdingshan University, Pingdingshan, Henan 467000, China
| | - Li Liu
- Medicine College of Pingdingshan University, Pingdingshan, Henan 467000, China
| | - Huijie Zhang
- Medicine College of Pingdingshan University, Pingdingshan, Henan 467000, China
| | - Wenqian Kang
- Medicine College of Pingdingshan University, Pingdingshan, Henan 467000, China
| | - Run Shi
- Medicine College of Pingdingshan University, Pingdingshan, Henan 467000, China
| | - Changzhi Li
- Medicine College of Pingdingshan University, Pingdingshan, Henan 467000, China
| | - Yarui Li
- Medicine College of Pingdingshan University, Pingdingshan, Henan 467000, China
| | - Jiaqi Wang
- Medicine College of Pingdingshan University, Pingdingshan, Henan 467000, China
| | - Xinhua Zheng
- Medicine College of Pingdingshan University, Pingdingshan, Henan 467000, China
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48
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Chen Y, Jiao D, He H, Sun H, Liu Y, Shi Q, Zhang P, Li Y, Mo R, Gao K, Wang C. Disruption of the Keap1-mTORC2 axis by cancer-derived Keap1/mLST8 mutations leads to oncogenic mTORC2-AKT activation. Redox Biol 2023; 67:102872. [PMID: 37688978 PMCID: PMC10498434 DOI: 10.1016/j.redox.2023.102872] [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: 06/09/2023] [Revised: 08/29/2023] [Accepted: 09/01/2023] [Indexed: 09/11/2023] Open
Abstract
The mechanistic target of the rapamycin (mTOR) pathway, which participates in the regulation of cellular growth and metabolism, is aberrantly regulated in various cancer types. The mTOR complex 2 (mTORC2), which consists of the core components mTOR, Rictor, mSin1, and mLST8, primarily responds to growth signals. However, the coordination between mTORC2 assembly and activity remains poorly understood. Keap1, a major sensor of oxidative stress in cells, functions as a substrate adaptor for Cullin 3-RING E3 ubiquitin ligase (CRL3) to promote proteasomal degradation of NF-E2-related factor 2 (NRF2), which is a transcription factor that protects cells against oxidative and electrophilic stress. In the present study, we demonstrate that Keap1 binds to mLST8 via a conserved ETGE motif. The CRL3Keap1 ubiquitin ligase complex promotes non-degradative ubiquitination of mLST8, thus reducing mTORC2 complex integrity and mTORC2-AKT activation. However, this effect can be prevented by oxidative/electrophilic stresses and growth factor signaling-induced reactive oxygen species (ROS) burst. Cancer-derived Keap1 or mLST8 mutations disrupt the Keap1-mLST8 interaction and allow mLST8 to evade Keap1-mediated ubiquitination, thereby enhancing mTORC2-AKT activation and promoting cell malignancy and remodeling cell metabolism. Our findings provide new insights into the molecular mechanisms of Keap1/mLST8 mutation-driven tumorigenesis by promoting mTORC2-AKT activation, which is independent of the canonical NRF2 pathway.
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Affiliation(s)
- Yingji Chen
- Shanghai Stomatological Hospital & School of Stomatology, State Key Lab of Genetic Engineering, MOE Engineering Research Center of Gene Technology, Shanghai Engineering Research Center of Industrial Microorganisms, School of Life Sciences, Fudan University, Shanghai, 200438, PR China
| | - Dongyue Jiao
- Shanghai Stomatological Hospital & School of Stomatology, State Key Lab of Genetic Engineering, MOE Engineering Research Center of Gene Technology, Shanghai Engineering Research Center of Industrial Microorganisms, School of Life Sciences, Fudan University, Shanghai, 200438, PR China
| | - Huiying He
- Shanghai Stomatological Hospital & School of Stomatology, State Key Lab of Genetic Engineering, MOE Engineering Research Center of Gene Technology, Shanghai Engineering Research Center of Industrial Microorganisms, School of Life Sciences, Fudan University, Shanghai, 200438, PR China
| | - Huiru Sun
- Shanghai Stomatological Hospital & School of Stomatology, State Key Lab of Genetic Engineering, MOE Engineering Research Center of Gene Technology, Shanghai Engineering Research Center of Industrial Microorganisms, School of Life Sciences, Fudan University, Shanghai, 200438, PR China
| | - Yajuan Liu
- Shanghai Stomatological Hospital & School of Stomatology, State Key Lab of Genetic Engineering, MOE Engineering Research Center of Gene Technology, Shanghai Engineering Research Center of Industrial Microorganisms, School of Life Sciences, Fudan University, Shanghai, 200438, PR China
| | - Qing Shi
- Shanghai Stomatological Hospital & School of Stomatology, State Key Lab of Genetic Engineering, MOE Engineering Research Center of Gene Technology, Shanghai Engineering Research Center of Industrial Microorganisms, School of Life Sciences, Fudan University, Shanghai, 200438, PR China
| | - Pingzhao Zhang
- Fudan University Shanghai Cancer Center and Department of Pathology, Shanghai Medical College, Fudan University, Shanghai, 200032, PR China
| | - Yao Li
- Shanghai Stomatological Hospital & School of Stomatology, State Key Lab of Genetic Engineering, MOE Engineering Research Center of Gene Technology, Shanghai Engineering Research Center of Industrial Microorganisms, School of Life Sciences, Fudan University, Shanghai, 200438, PR China
| | - Ren Mo
- Department of Urology, Inner Mongolia Urological Institute, Inner Mongolia Autonomous Region People's Hospital, Hohhot, 010017, Inner Mongolia, PR China.
| | - Kun Gao
- Department of Clinical Laboratory, Shanghai First Maternity and Infant Hospital, School of Medicine, Tongji University, Shanghai, 200092, PR China; Shanghai Key Laboratory of Maternal and Fetal Medicine, Shanghai First Maternity and Infant Hospital, Shanghai, 200092, PR China.
| | - Chenji Wang
- Shanghai Stomatological Hospital & School of Stomatology, State Key Lab of Genetic Engineering, MOE Engineering Research Center of Gene Technology, Shanghai Engineering Research Center of Industrial Microorganisms, School of Life Sciences, Fudan University, Shanghai, 200438, PR China.
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Bischoff E, Lang L, Zimmermann J, Luczak M, Kiefer AM, Niedner-Schatteburg G, Manolikakes G, Morgan B, Deponte M. Glutathione kinetically outcompetes reactions between dimedone and a cyclic sulfenamide or physiological sulfenic acids. Free Radic Biol Med 2023; 208:165-177. [PMID: 37541455 DOI: 10.1016/j.freeradbiomed.2023.08.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/07/2023] [Revised: 07/31/2023] [Accepted: 08/01/2023] [Indexed: 08/06/2023]
Abstract
Dimedone and its derivates are used as selective probes for the nucleophilic detection of sulfenic acids in biological samples. Qualitative analyses suggested that dimedone also reacts with cyclic sulfenamides. Furthermore, under physiological conditions, dimedone must compete with the highly concentrated nucleophile glutathione. We therefore quantified the reaction kinetics for a cyclic sulfenamide model peptide and the sulfenic acids of glutathione and a model peroxiredoxin in the presence or absence of dimedone and glutathione. We show that the cyclic sulfenamide is stabilized at lower pH and that it reacts with dimedone. While reactions between dimedone and sulfenic acids or the cyclic sulfenamide have similar rate constants, glutathione kinetically outcompetes dimedone as a nucleophile by several orders of magnitude. Our comparative in vitro and intracellular analyses challenge the selectivity of dimedone. Consequently, the dimedone labeling of cysteinyl residues inside living cells points towards unidentified reaction pathways or unknown, kinetically competitive redox species.
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Affiliation(s)
- Eileen Bischoff
- Fachbereich Chemie & Landesforschungszentrum OPTIMAS, RPTU Kaiserslautern, Erwin-Schrödinger Straße 54, D-67663, Kaiserslautern, Germany
| | - Lukas Lang
- Fachbereich Chemie & Landesforschungszentrum OPTIMAS, RPTU Kaiserslautern, Erwin-Schrödinger Straße 54, D-67663, Kaiserslautern, Germany
| | - Jannik Zimmermann
- Zentrum für Human- und Molekularbiologie (ZHMB), Universität des Saarlandes, Biochemie Campus, Geb. B2.2, D-66123, Saarbrücken, Germany
| | - Maximilian Luczak
- Fachbereich Chemie & Landesforschungszentrum OPTIMAS, RPTU Kaiserslautern, Erwin-Schrödinger Straße 54, D-67663, Kaiserslautern, Germany
| | - Anna Maria Kiefer
- Fachbereich Biologie, RPTU Kaiserslautern, Paul-Ehrlich Straße 23, D-67663, Kaiserslautern, Germany
| | - Gereon Niedner-Schatteburg
- Fachbereich Chemie & Landesforschungszentrum OPTIMAS, RPTU Kaiserslautern, Erwin-Schrödinger Straße 54, D-67663, Kaiserslautern, Germany
| | - Georg Manolikakes
- Fachbereich Chemie & Landesforschungszentrum OPTIMAS, RPTU Kaiserslautern, Erwin-Schrödinger Straße 54, D-67663, Kaiserslautern, Germany
| | - Bruce Morgan
- Zentrum für Human- und Molekularbiologie (ZHMB), Universität des Saarlandes, Biochemie Campus, Geb. B2.2, D-66123, Saarbrücken, Germany
| | - Marcel Deponte
- Fachbereich Chemie & Landesforschungszentrum OPTIMAS, RPTU Kaiserslautern, Erwin-Schrödinger Straße 54, D-67663, Kaiserslautern, Germany.
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Affiliation(s)
- Daniel W Bak
- Department of Chemistry, Boston College, Chestnut Hill, MA, USA.
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