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Adriana M, Aleksandra M, Denise B, Kinga G, Joanna W, Aleksandra H, Robert W, Agnieszka MW, Magdalena RŻ. Zn(II) and Cu(II) Coordination Enhances the Antimicrobial Activity of Piscidin 3, but Not That of Piscidins 1 and 2. Inorg Chem 2024; 63:12958-12968. [PMID: 38946498 DOI: 10.1021/acs.inorgchem.4c01659] [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: 07/02/2024]
Abstract
Piscidins, antimicrobial peptides isolated from fish, are potent against a variety of human pathogens; they show minimum inhibitory concentration values comparable to those of commercially used antimicrobials. Piscidins 1 and 2 are generally more effective than piscidin 3 when applied alone; the contrary is observed for their metal complexes: Zn(II) and Cu(II) coordination does not enhance the efficacy of piscidins 1 and 2, while a moderate enhancement is observed for piscidin 3. All three piscidins bind Cu(II) in a so-called albumin-like binding mode, while for Zn(II) complexes, two coordination modes are observed: piscidins 1 and 2 bind Zn(II) by imidazole nitrogens from His4, His11, and His17 side chains; piscidin 3 coordinates Zn(II) by His3, His4, and His11 imidazole nitrogens and additionally supports the interaction, formed by carbonyl oxygen from His4. Most likely, the high antimicrobial activity of piscidin complexes is due to neither the stability of their complexes nor the change in their secondary structure. Copper(II) complexes with piscidins 1 and 2 can form hydroxyl radicals, which could be responsible for the antimicrobial membrane damaging activity of these complexes. Clearly, a different mechanism (most likely an intercellular targeted one) is observed for piscidin 3 metal complexes; in most cases, the coordination of Cu(II) and Zn(II) enhances the antimicrobial potency of piscidin 3, showing that not only piscidin 3 alone but also its metal complexes have a different mode of action than piscidins 1 and 2.
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Affiliation(s)
- Miller Adriana
- Faculty of Chemistry, University of Wroclaw, ul. F. Joliot-Curie 14, 50-383 Wroclaw, Poland
| | - Mikołajczyk Aleksandra
- Screening of Biological Activity Assays and Collection of Biological Material Laboratory, Wroclaw Medical University Biobank, Faculty of Pharmacy, Wroclaw Medical University, ul. Borowska 211a, 50-556 Wroclaw, Poland
| | - Bellotti Denise
- Department of Chemical, Pharmaceutical and Agricultural Sciences, University of Ferrara, Via Luigi Borsari 46, 44121 Ferrara, Italy
| | - Garstka Kinga
- Faculty of Chemistry, University of Wroclaw, ul. F. Joliot-Curie 14, 50-383 Wroclaw, Poland
| | - Wątły Joanna
- Faculty of Chemistry, University of Wroclaw, ul. F. Joliot-Curie 14, 50-383 Wroclaw, Poland
| | - Hecel Aleksandra
- Faculty of Chemistry, University of Wroclaw, ul. F. Joliot-Curie 14, 50-383 Wroclaw, Poland
| | - Wieczorek Robert
- Faculty of Chemistry, University of Wroclaw, ul. F. Joliot-Curie 14, 50-383 Wroclaw, Poland
| | - Matera-Witkiewicz Agnieszka
- Screening of Biological Activity Assays and Collection of Biological Material Laboratory, Wroclaw Medical University Biobank, Faculty of Pharmacy, Wroclaw Medical University, ul. Borowska 211a, 50-556 Wroclaw, Poland
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Gao Z, Zheng X, Dong X, Liu W, Sha J, Bian S, Li J, Cong H, Lee CS, Wang P. A General Strategy for Enhanced Photodynamic Antimicrobial Therapy with Perylenequinonoid Photosensitizers Using a Macrocyclic Supramolecular Carrier. Adv Healthc Mater 2024:e2401778. [PMID: 38979867 DOI: 10.1002/adhm.202401778] [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: 05/14/2024] [Revised: 06/30/2024] [Indexed: 07/10/2024]
Abstract
Perylenequinonoid natural products are a class of photosensitizers (PSs) that exhibit high reactive oxygen species (ROS) generation and excellent activity for Type I/Type II dual photodynamic therapy. However, their limited activity against gram-negative bacteria and poor water solubility significantly restrict their potential in broad-spectrum photodynamic antimicrobial therapy (PDAT). Herein, a general approach to overcome the limitations of perylenequinonoid photosensitizers (PQPSs) in PDAT by utilizing a macrocyclic supramolecular carrier is presented. Specifically, AnBox·4Cl, a water-soluble cationic cyclophane, is identified as a universal macrocyclic host for PQPSs such as elsinochrome C, hypocrellin A, hypocrellin B, and hypericin, forming 1:1 host-guest complexes with high binding constants (≈107 m -1) in aqueous solutions. Each AnBox·4Cl molecule carries four positive charges that promote strong binding with the membrane of gram-negative bacteria. As a result, the AnBox·4Cl-PQPS complexes can effectively anchor on the surfaces of gram-negative bacteria, while the PQPSs alone cannot. In vitro and in vivo experiments demonstrate that these supramolecular PSs have excellent water solubility and high ROS generation, with broad-spectrum PDAT effect against both gram-negative and gram-positive bacteria. This work paves a new path to enhance PDAT by showcasing an efficient approach to improve PQPSs' water solubility and killing efficacy for gram-negative bacteria.
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Affiliation(s)
- Zekun Gao
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials and CityU-CAS Joint Laboratory of Functional Materials and Devices, Technical Institute of Physics and Chemistry; School of Future Technology, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Beijing, 100190, China
| | - Xiuli Zheng
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials and CityU-CAS Joint Laboratory of Functional Materials and Devices, Technical Institute of Physics and Chemistry; School of Future Technology, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Beijing, 100190, China
| | - Xiangyu Dong
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, School of Future Technology, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Beijing, 100190, China
| | - Weimin Liu
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials and CityU-CAS Joint Laboratory of Functional Materials and Devices, Technical Institute of Physics and Chemistry; School of Future Technology, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Beijing, 100190, China
| | - Jie Sha
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials and CityU-CAS Joint Laboratory of Functional Materials and Devices, Technical Institute of Physics and Chemistry; School of Future Technology, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Beijing, 100190, China
| | - Shuaishuai Bian
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials and CityU-CAS Joint Laboratory of Functional Materials and Devices, Technical Institute of Physics and Chemistry; School of Future Technology, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Beijing, 100190, China
| | - Jian Li
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials and CityU-CAS Joint Laboratory of Functional Materials and Devices, Technical Institute of Physics and Chemistry; School of Future Technology, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Beijing, 100190, China
| | - Huan Cong
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, School of Future Technology, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Beijing, 100190, China
| | - Chun-Sing Lee
- Center of Super-Diamond and Advanced Films (COSDAF) & Department of Materials Science and Engineering, City University of Hong Kong, Hong Kong, SAR, 999077, China
| | - Pengfei Wang
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials and CityU-CAS Joint Laboratory of Functional Materials and Devices, Technical Institute of Physics and Chemistry; School of Future Technology, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Beijing, 100190, China
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3
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Naing MD, Juliano SA, Angeles-Boza AM. Synergy between the clavanins as a weapon against multidrug-resistant Enterobacter cloacae. RSC Med Chem 2024; 15:2160-2164. [PMID: 38911167 PMCID: PMC11187565 DOI: 10.1039/d4md00070f] [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: 01/24/2024] [Accepted: 05/14/2024] [Indexed: 06/25/2024] Open
Abstract
Finding new antibiotics that can act synergistically with each other offers many benefits such as lower dosages used for each drug, improved pathogen clearance, and ability to act against multi-drug resistant strains. In this study, six peptides isolated from the tunicate Styela clava were evaluated for their synergistic interaction using the checkerboard assay and the time kill kinetics assay. Using two different tests, we report synergy between clavanin D and clavaspirin in both tests and synergy between clavanin A and B only in the checkerboard test when used against the multidrug resistant E. cloacae 0136. This work demonstrates the possible cooperativity between homologous AMPs from a single organism and the advantage of using two susceptibility tests instead of one when testing synergistic combinations.
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Affiliation(s)
- Marvin D Naing
- Department of Chemistry, University of Connecticut Storrs 06269 USA
| | - Samuel A Juliano
- Department of Chemistry, University of Connecticut Storrs 06269 USA
| | - Alfredo M Angeles-Boza
- Department of Chemistry, University of Connecticut Storrs 06269 USA
- Institute of Materials Science, University of Connecticut Storrs 06269 USA
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Weaver DF. Endogenous Antimicrobial-Immunomodulatory Molecules: Networking Biomolecules of Innate Immunity. Chembiochem 2024; 25:e202400089. [PMID: 38658319 DOI: 10.1002/cbic.202400089] [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: 01/30/2024] [Revised: 04/21/2024] [Accepted: 04/24/2024] [Indexed: 04/26/2024]
Abstract
Endogenous antimicrobial-immunomodulatory molecules (EAIMs) are essential to immune-mediated human health and evolution. Conventionally, antimicrobial peptides (AMPs) have been regarded as the dominant endogenous antimicrobial molecule; however, AMPs are not sufficient to account for the full spectrum of antimicrobial-immunomodulatory duality occurring within the human body. The threat posed by pathogenic microbes is pervasive with the capacity for widespread impact across many organ systems and multiple biochemical pathways; accordingly, the host needs the capacity to react with an equally diverse response. This can be attained by having EAIMs that traverse the full range of molecular size (small to large molecules) and structural diversity (including molecules other than peptides). This review identifies multiple molecules (peptide/protein, lipid, carbohydrate, nucleic acid, small organic molecule, and metallic cation) as EAIMs and discusses the possibility of cooperative, additive effects amongst the various EAIM classes during the host response to a microbial assault. This comprehensive consideration of the full molecular diversity of EAIMs enables the conclusion that EAIMs constitute a previously uncatalogued structurally diverse and collectively underappreciated immuno-active group of integrated molecular responders within the innate immune system's first line of defence.
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Affiliation(s)
- Donald F Weaver
- Departments of Chemistry and Medicine, University of Toronto, Krembil Research Institute, University Health Network, Toronto, ON, M5Y 0S8, Canada
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5
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Zhang F, Fang H, Zhao Y, Zhao B, Qin S, Wang Y, Guo Y, Liu J, Xu T. A membrane-targeting magnolol derivative for the treatment of methicillin-resistant Staphylococcus aureus infections. Front Microbiol 2024; 15:1385585. [PMID: 38827157 PMCID: PMC11140843 DOI: 10.3389/fmicb.2024.1385585] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2024] [Accepted: 04/26/2024] [Indexed: 06/04/2024] Open
Abstract
Multidrug-resistant bacterial infections are a major global health challenge, especially the emergence and rapid spread of methicillin-resistant Staphylococcus aureus (MRSA) urgently require alternative treatment options. Our study has identified that a magnolol derivative 6i as a promising agent with significant antibacterial activity against S. aureus and clinical MRSA isolates (MIC = 2-8 μg/mL), showing high membrane selectivity. Unlike traditional antibiotics, 6i demonstrated rapid bactericidal efficiency and a lower propensity for inducing bacterial resistance. Compound 6i also could inhibit biofilm formation and eradicate bacteria within biofilms. Mechanistic studies further revealed that 6i could target bacterial cell membranes, disrupting the integrity of the cell membrane and leading to increased DNA leakage, resulting in potent antibacterial effects. Meanwhile, 6i also showed good plasma stability and excellent biosafety. Notably, 6i displayed good in vivo antibacterial activity in a mouse skin abscess model of MRSA-16 infection, which was comparable to the positive control vancomycin. These findings indicated that the magnolol derivative 6i possessed the potential to be a novel anti-MRSA infection agent.
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Affiliation(s)
- Fushan Zhang
- Department of Clinical Laboratory, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Hui Fang
- School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, China
- Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, School of Pharmaceutical Science, Hengyang Medical School, University of South China, Hengyang, China
| | - Yuxin Zhao
- School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, China
- Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, School of Pharmaceutical Science, Hengyang Medical School, University of South China, Hengyang, China
| | - Buhui Zhao
- School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, China
- Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, School of Pharmaceutical Science, Hengyang Medical School, University of South China, Hengyang, China
| | - Shangshang Qin
- School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, China
- Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, School of Pharmaceutical Science, Hengyang Medical School, University of South China, Hengyang, China
| | - Yu Wang
- School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, China
- Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, School of Pharmaceutical Science, Hengyang Medical School, University of South China, Hengyang, China
| | - Yong Guo
- School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, China
- Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, School of Pharmaceutical Science, Hengyang Medical School, University of South China, Hengyang, China
| | - Jifeng Liu
- School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, China
- Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, School of Pharmaceutical Science, Hengyang Medical School, University of South China, Hengyang, China
| | - Ting Xu
- Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, School of Pharmaceutical Science, Hengyang Medical School, University of South China, Hengyang, China
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Bouraguba M, Schmitt AM, Yelisetty VS, Vileno B, Melin F, Glattard E, Orvain C, Lebrun V, Raibaut L, Ilbert M, Bechinger B, Hellwig P, Gaiddon C, Sour A, Faller P. Quest for a stable Cu-ligand complex with a high catalytic activity to produce reactive oxygen species. Metallomics 2024; 16:mfae020. [PMID: 38614957 DOI: 10.1093/mtomcs/mfae020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2024] [Accepted: 04/12/2024] [Indexed: 04/15/2024]
Abstract
Metal ion-catalyzed overproduction of reactive oxygen species (ROS) is believed to contribute significantly to oxidative stress and be involved in several biological processes, from immune defense to development of diseases. Among the essential metal ions, copper is one of the most efficient catalysts in ROS production in the presence of O2 and a physiological reducing agent such as ascorbate. To control this chemistry, Cu ions are tightly coordinated to biomolecules. Free or loosely bound Cu ions are generally avoided to prevent their toxicity. In the present report, we aim to find stable Cu-ligand complexes (Cu-L) that can efficiently catalyze the production of ROS in the presence of ascorbate under aerobic conditions. Thermodynamic stability would be needed to avoid dissociation in the biological environment, and high ROS catalysis is of interest for applications as antimicrobial or anticancer agents. A series of Cu complexes with the well-known tripodal and tetradentate ligands containing a central amine linked to three pyridyl-alkyl arms of different lengths were investigated. Two of them with mixed arm length showed a higher catalytic activity in the oxidation of ascorbate and subsequent ROS production than Cu salts in buffer, which is an unprecedented result. Despite these high catalytic activities, no increased antimicrobial activity toward Escherichia coli or cytotoxicity against eukaryotic AGS cells in culture related to Cu-L-based ROS production could be observed. The potential reasons for discrepancy between in vitro and in cell data are discussed.
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Affiliation(s)
- Merwan Bouraguba
- Institut de Chimie, UMR 7177, Université́ de Strasbourg, CNRS, 4 Rue Blaise Pascal, 67000 Strasbourg, France
| | - Adeline M Schmitt
- Institut de Chimie, UMR 7177, Université́ de Strasbourg, CNRS, 4 Rue Blaise Pascal, 67000 Strasbourg, France
| | - Venkata Suseela Yelisetty
- Institut de Chimie, UMR 7177, Université́ de Strasbourg, CNRS, 4 Rue Blaise Pascal, 67000 Strasbourg, France
| | - Bertrand Vileno
- Institut de Chimie, UMR 7177, Université́ de Strasbourg, CNRS, 4 Rue Blaise Pascal, 67000 Strasbourg, France
| | - Frédéric Melin
- Laboratoire de Bioélectrochimie et Spectroscopie, UMR 7140, CNRS, Université de Strasbourg, 4 Rue Blaise Pascal, 67000 Strasbourg, France
| | - Elise Glattard
- Institut de Chimie, UMR 7177, Université́ de Strasbourg, CNRS, 4 Rue Blaise Pascal, 67000 Strasbourg, France
| | - Christophe Orvain
- Inserm UMR_S 1113, Université de Strasbourg, 3 avenue Molière, 67200 Strasbourg, France
| | - Vincent Lebrun
- Institut de Chimie, UMR 7177, Université́ de Strasbourg, CNRS, 4 Rue Blaise Pascal, 67000 Strasbourg, France
| | - Laurent Raibaut
- Institut de Chimie, UMR 7177, Université́ de Strasbourg, CNRS, 4 Rue Blaise Pascal, 67000 Strasbourg, France
| | - Marianne Ilbert
- Aix-Marseille Université, CNRS, Bioénergétique et Ingénierie des Protéines (BIP), UMR 7281, IMM, Marseille, France
| | - Burkhard Bechinger
- Institut de Chimie, UMR 7177, Université́ de Strasbourg, CNRS, 4 Rue Blaise Pascal, 67000 Strasbourg, France
- Institut Universitaire de France (IUF), 1 rue Descartes, 75231 Paris, France
| | - Petra Hellwig
- Laboratoire de Bioélectrochimie et Spectroscopie, UMR 7140, CNRS, Université de Strasbourg, 4 Rue Blaise Pascal, 67000 Strasbourg, France
- Institut Universitaire de France (IUF), 1 rue Descartes, 75231 Paris, France
| | - Christian Gaiddon
- Inserm UMR_S 1113, Université de Strasbourg, 3 avenue Molière, 67200 Strasbourg, France
| | - Angélique Sour
- Institut de Chimie, UMR 7177, Université́ de Strasbourg, CNRS, 4 Rue Blaise Pascal, 67000 Strasbourg, France
| | - Peter Faller
- Institut de Chimie, UMR 7177, Université́ de Strasbourg, CNRS, 4 Rue Blaise Pascal, 67000 Strasbourg, France
- Institut Universitaire de France (IUF), 1 rue Descartes, 75231 Paris, France
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Mehraj I, Hamid A, Gani U, Iralu N, Manzoor T, Saleem Bhat S. Combating Antimicrobial Resistance by Employing Antimicrobial Peptides: Immunomodulators and Therapeutic Agents against Infectious Diseases. ACS APPLIED BIO MATERIALS 2024; 7:2023-2035. [PMID: 38533844 DOI: 10.1021/acsabm.3c01104] [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] [Indexed: 03/28/2024]
Abstract
The rising prevalence of multiple-drug-resistant pathogens poses a formidable challenge to conventional antimicrobial treatments. The inability of potent antibiotics to combat these "superbugs" underscores the pressing need for alternative therapeutic agents. Antimicrobial peptides (AMPs) represent an alternative class of antibiotics. AMPs are essential immunomodulatory molecules that are found in various organisms. They play a pivotal role in managing microbial ecosystems and bolstering innate immunity by targeting and eliminating invading microorganisms. AMPs also have applications in the agriculture sector by combating animal as well as plant pathogens. AMPs can be exploited for the targeted therapy of various diseases and can also be used in drug-delivery systems. They can be used in synergy with current treatments like antibiotics and can potentially lead to a lower required dosage. AMPs also have huge potential in wound healing and regenerative medicine. Developing AMP-based strategies with improved safety, specificity, and efficacy is crucial in the battle against alarming global microbial resistance. This review will explore AMPs' increasing applicability, their mode of antimicrobial activity, and various delivery systems enhancing their stability and efficacy.
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Affiliation(s)
- Insha Mehraj
- Division of Animal Biotechnology, Faculty of Veterinary Sciences and Animal Husbandry, Sher-e-Kashmir University of Agricultural Sciences and Technology of Kashmir, Shalimar, Srinagar, Jammu and Kashmir 05466, India
| | - Aflaq Hamid
- Department of Plant Pathology, Sher-e-Kashmir University of Agricultural Sciences and Technology of Kashmir, Shalimar, Srinagar, Jammu and Kashmir 05466, India
| | - Ubaid Gani
- Division of Animal Biotechnology, Faculty of Veterinary Sciences and Animal Husbandry, Sher-e-Kashmir University of Agricultural Sciences and Technology of Kashmir, Shalimar, Srinagar, Jammu and Kashmir 05466, India
| | - Nulevino Iralu
- Department of Plant Pathology, Sher-e-Kashmir University of Agricultural Sciences and Technology of Kashmir, Shalimar, Srinagar, Jammu and Kashmir 05466, India
| | - Tasaduq Manzoor
- Division of Animal Biotechnology, Faculty of Veterinary Sciences and Animal Husbandry, Sher-e-Kashmir University of Agricultural Sciences and Technology of Kashmir, Shalimar, Srinagar, Jammu and Kashmir 05466, India
| | - Sahar Saleem Bhat
- Division of Animal Biotechnology, Faculty of Veterinary Sciences and Animal Husbandry, Sher-e-Kashmir University of Agricultural Sciences and Technology of Kashmir, Shalimar, Srinagar, Jammu and Kashmir 05466, India
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8
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de Oliveira Silva YR, Zheng D, Peters SC, Fisher OS. Stabilization of a Cu-binding site by a highly conserved tryptophan residue. J Inorg Biochem 2024; 253:112501. [PMID: 38342077 DOI: 10.1016/j.jinorgbio.2024.112501] [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: 11/06/2023] [Revised: 01/31/2024] [Accepted: 02/01/2024] [Indexed: 02/13/2024]
Abstract
Copper serves as an essential cofactor for nearly all living organisms. There are still many gaps remaining in our knowledge of how Gram-positive bacteria import copper and maintain homeostasis. To obtain a better understanding of how these processes work, here we focus on the ycnKJI operon responsible for regulating copper levels in the Gram-positive bacterium Bacillus subtilis. This operon encodes three Cu-related proteins: a copper-dependent transcriptional repressor (YcnK), a putative copper importer (YcnJ), and a copper-binding protein of unknown function (YcnI). We previously found that YcnI's extracellular Domain of Unknown Function 1775 (DUF1775) houses a monohistidine brace motif that coordinates a single Cu(II) ion. The Cu(II) binding site includes a highly conserved tryptophan residue. Here, we investigate the role of that tryptophan and the ability of the protein to interact with other oxidation states of Cu. We find that YcnI exhibits strong preference for binding Cu in the oxidized Cu(II) state, and that the conserved tryptophan residue is not essential for the interaction. We determine the structure of a tryptophan variant to 1.95 Å resolution that indicates that the tryptophan is needed to stabilize the metal binding interaction, and find that this variant has weaker affinity for Cu(II) than the wild-type protein. Together, these data provide further insights into the DUF1775 domain family and reveal the role of the conserved tryptophan residue.
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Affiliation(s)
| | - Dia Zheng
- Department of Chemistry, Lehigh University, 6 E Packer Ave, Bethlehem, PA 18015, USA
| | - Stephen C Peters
- Department of Earth and Environmental Sciences, Lehigh University, 1 W Packer Ave, Bethlehem, PA 18015, USA
| | - Oriana S Fisher
- Department of Chemistry, Lehigh University, 6 E Packer Ave, Bethlehem, PA 18015, USA.
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9
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Chen H, Fan Y, Shi Z, Liu C, Ran M, Zhai J, Wu J, Wong TM, Ning C, Yu P. NIR-responsive micropatterned nanocomposite functionalized implant for sequential antibacterial and osteogenesis. Colloids Surf B Biointerfaces 2024; 235:113748. [PMID: 38306804 DOI: 10.1016/j.colsurfb.2024.113748] [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: 11/02/2023] [Revised: 12/19/2023] [Accepted: 01/03/2024] [Indexed: 02/04/2024]
Abstract
The long-term durability of the implant is influenced by two significant clinical challenges, namely bacterial infection and fixation loosening. Conventional implant materials have failed to meet the demands of the dynamic process of infectious bone repair, which necessitates early-stage bacterial sterilization and a conducive environment for late-stage osteogenesis. Consequently, there is an urgent requirement for an implant material that can sequentially regulate antibacterial properties and promote osteogenesis. The study aimed to develop a micropatterned graphene oxide nanocomposite on titanium implant (M-NTO/GO) for the sequential management of bacterial infection and osteogenic promotion. M-NTO/GO exhibited a micropattern nanostructure surface and demonstrated responsiveness to near-infrared (NIR) light. Upon NIR light irradiation, M-NTO/GO exhibited effective antibacterial properties, achieving antibacterial rates of 96.9% and 98.6% against E. coli and S. aureus, respectively. Under no-light condition, the micropatterned topography of M-NTO/GO exhibited the ability to induce directed cell growth, enhance cell adhesion and spreading, and facilitate osteogenic differentiation. These findings suggest the successful development of a functionalized micropatterned nanocomposite implant capable of sequentially regulating antibacterial and osteogenesis activity. Consequently, this highly effective strategy holds promise for expanding the potential applications of orthopedic implants.
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Affiliation(s)
- Haoyan Chen
- School of Material Science and Engineering, National Engineering Research Center for Tissue Restoration and Reconstruction, GuangDong Engineering Technology Research Center of Metallic Materials Surface Functionalization, South China University of Technology, Guangzhou 510641, China
| | - Youzhun Fan
- School of Material Science and Engineering, National Engineering Research Center for Tissue Restoration and Reconstruction, GuangDong Engineering Technology Research Center of Metallic Materials Surface Functionalization, South China University of Technology, Guangzhou 510641, China
| | - Zhifeng Shi
- National Engineering Research Center for Tissue Restoration and Reconstruction, Key Laboratory of Biomedical Engineering of Guangdong Province, Key Laboratory of Biomedical Materials and Engineering of the Ministry of Education, Innovation Center for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou 510006, China
| | - Chengli Liu
- School of Material Science and Engineering, National Engineering Research Center for Tissue Restoration and Reconstruction, GuangDong Engineering Technology Research Center of Metallic Materials Surface Functionalization, South China University of Technology, Guangzhou 510641, China
| | - Maofei Ran
- School of Material Science and Engineering, National Engineering Research Center for Tissue Restoration and Reconstruction, GuangDong Engineering Technology Research Center of Metallic Materials Surface Functionalization, South China University of Technology, Guangzhou 510641, China
| | - Jinxia Zhai
- School of Material Science and Engineering, National Engineering Research Center for Tissue Restoration and Reconstruction, GuangDong Engineering Technology Research Center of Metallic Materials Surface Functionalization, South China University of Technology, Guangzhou 510641, China
| | - Jun Wu
- Department of Orthopaedics and Traumatology, School of Clinical Medicine, LKS Faculty of Medicine, The University of Hong Kong, Pokfulam 999077, China
| | - Tak Man Wong
- Department of Orthopaedics and Traumatology, School of Clinical Medicine, LKS Faculty of Medicine, The University of Hong Kong, Pokfulam 999077, China
| | - Chengyun Ning
- School of Material Science and Engineering, National Engineering Research Center for Tissue Restoration and Reconstruction, GuangDong Engineering Technology Research Center of Metallic Materials Surface Functionalization, South China University of Technology, Guangzhou 510641, China
| | - Peng Yu
- School of Material Science and Engineering, National Engineering Research Center for Tissue Restoration and Reconstruction, GuangDong Engineering Technology Research Center of Metallic Materials Surface Functionalization, South China University of Technology, Guangzhou 510641, China.
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10
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Magarelli G, da Silva JG, Ribeiro CL, de Freitas TV, Rodrigues MA, de Souza Gil E, Marraccini P, de Souza JR, de Castro CSP, Bemquerer MP. A voltammetric peptide biosensor for Cu 2+ metal ion quantification in coffee seeds. J Inorg Biochem 2024; 251:112441. [PMID: 38103419 DOI: 10.1016/j.jinorgbio.2023.112441] [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: 09/06/2023] [Revised: 11/22/2023] [Accepted: 11/26/2023] [Indexed: 12/19/2023]
Abstract
A prion-derived copper(II)-binding peptide was assembled onto a gold electrode for the building of a voltammetric biosensor for measuring the Cu2+ metal ion in biological samples. The chosen sequence was H-CVNITKQHTVTTTT-NH2, with an appended cysteine residue for binding to the gold surface as a self-assembled monolayer and a histidine residue as the anchorage point for copper(II) complexation. The biosensor showed a linear range of 10-7 to 10-6 M with an 8.0 × 10-8 M detection limit and a 1.0 × 10-7 M quantification limit, with good precision, trueness, and absence of matrix effect. The quantification of Cu2+ was performed in the presence of other transition metal ions, such as Zn2+, Cd2+, Fe2+, or Ni2+, which indicates the excellent selectivity of the biosensor. When the modified electrode was applied for measuring copper(II) in calcined coffee seeds, a difference in copper amount was observed between two Coffea arabica cultivars that were submitted to a treatment with a copper-based antifungal, showing the applicability of the biosensor in the agricultural field.
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Affiliation(s)
- Gabriella Magarelli
- Embrapa Recursos Genéticos e Biotecnologia, Parque Estação Biológica, PqEB, Av. W5 Norte (final) P.O. Box 02372, 70770-917 Brasília, DF, Brazil
| | - Jonatas Gomes da Silva
- Universidade Federal do Oeste da Bahia, Campus Reitor Edgard Santos, 47810-047 Barreiras, BA, Brazil
| | - Caroline Luchtenberg Ribeiro
- Embrapa Recursos Genéticos e Biotecnologia, Parque Estação Biológica, PqEB, Av. W5 Norte (final) P.O. Box 02372, 70770-917 Brasília, DF, Brazil
| | - Thiago Viana de Freitas
- Embrapa Recursos Genéticos e Biotecnologia, Parque Estação Biológica, PqEB, Av. W5 Norte (final) P.O. Box 02372, 70770-917 Brasília, DF, Brazil
| | - Magali Aparecida Rodrigues
- Departamento de Química, Universidade de São Paulo, Av. Prof. Lineu Prestes, 748, Cidade Universitária, 05508-000 São Paulo, SP, Brazil
| | - Eric de Souza Gil
- Faculdade de Farmácia, Universidade Federal de Goiás, Setor Universitário, 74605-220 Goiânia, GO, Brazil
| | - Pierre Marraccini
- CIRAD (Centre de Coopération Internationale en Recherche Agronomique Pour de Développement), UMR DIADE, 34398 Montpellier, France.; UMR DIADE (Diversity, Adaptation, Development of Plants), University of Montpellier, CIRAD, IRD, 34398 Montpellier, France
| | - Jurandir Rodrigues de Souza
- Instituto de Química, Universidade de Brasília, Campus Darcy Ribeiro, P.O. Box 4478, 70910900 Brasília, DF, Brazil
| | - Clarissa Silva Pires de Castro
- Embrapa Recursos Genéticos e Biotecnologia, Parque Estação Biológica, PqEB, Av. W5 Norte (final) P.O. Box 02372, 70770-917 Brasília, DF, Brazil
| | - Marcelo Porto Bemquerer
- Embrapa Recursos Genéticos e Biotecnologia, Parque Estação Biológica, PqEB, Av. W5 Norte (final) P.O. Box 02372, 70770-917 Brasília, DF, Brazil; Embrapa Gado de Leite, Rua Eugênio do Nascimento, 610, Dom Bosco, 36038-330 Juiz de Fora, MG, Brazil.
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11
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Gao N, Wang J, Fang C, Bai P, Sun Y, Wu W, Shan A. Combating bacterial infections with host defense peptides: Shifting focus from bacteria to host immunity. Drug Resist Updat 2024; 72:101030. [PMID: 38043443 DOI: 10.1016/j.drup.2023.101030] [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: 08/30/2023] [Revised: 11/12/2023] [Accepted: 11/26/2023] [Indexed: 12/05/2023]
Abstract
The increasing prevalence of multidrug-resistant bacterial infections necessitates the exploration of novel paradigms for anti-infective therapy. Antimicrobial peptides (AMPs), also known as host defense peptides (HDPs), have garnered extensive recognition as immunomodulatory molecules that leverage natural host mechanisms to enhance therapeutic benefits. The unique immune mechanism exhibited by certain HDPs that involves self-assembly into supramolecular nanonets capable of inducing bacterial agglutination and entrapping is significantly important. This process effectively prevents microbial invasion and subsequent dissemination and significantly mitigates selective pressure for the evolution of microbial resistance, highlighting the potential of HDP-based antimicrobial therapy. Recent advancements in this field have focused on developing bio-responsive materials in the form of supramolecular nanonets. A comprehensive overview of the immunomodulatory and bacteria-agglutinating activities of HDPs, along with a discussion on optimization strategies for synthetic derivatives, is presented in this article. These optimized derivatives exhibit improved biological properties and therapeutic potential, making them suitable for future clinical applications as effective anti-infective therapeutics.
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Affiliation(s)
- Nan Gao
- Animal Science and Technology College, Northeast Agricultural University, Harbin 150030, PR China
| | - Jiajun Wang
- Animal Science and Technology College, Northeast Agricultural University, Harbin 150030, PR China.
| | - Chunyang Fang
- Animal Science and Technology College, Northeast Agricultural University, Harbin 150030, PR China
| | - Pengfei Bai
- Animal Science and Technology College, Northeast Agricultural University, Harbin 150030, PR China
| | - Yu Sun
- Animal Science and Technology College, Northeast Agricultural University, Harbin 150030, PR China
| | - Wanpeng Wu
- Animal Science and Technology College, Northeast Agricultural University, Harbin 150030, PR China
| | - Anshan Shan
- Animal Science and Technology College, Northeast Agricultural University, Harbin 150030, PR China.
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12
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Wątły J, Szarszoń K, Mikołajczyk A, Grelich-Mucha M, Matera-Witkiewicz A, Olesiak-Bańska J, Rowińska-Żyrek M. Zn(II) Induces Fibril Formation and Antifungal Activity in Shepherin I, An Antimicrobial Peptide from Capsella bursa-pastoris. Inorg Chem 2023; 62:19786-19794. [PMID: 37983127 DOI: 10.1021/acs.inorgchem.3c03409] [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: 11/22/2023]
Abstract
Shepherin I is a glycine- and histidine-rich antimicrobial peptide from the root of a shepherd's purse, whose antimicrobial activity was suggested to be enhanced by the presence of Zn(II) ions. We describe Zn(II) and Cu(II) complexes of this peptide, aiming to understand the correlation between their metal binding mode, structure, morphology, and biological activity. We observe a logical sequence of phenomena, each of which is the result of the previous one: (i) Zn(II) coordinates to shepherin I, (ii) causes a structural change, which, in turn, (iii) results in fibril formation. Eventually, this chain of structural changes has a (iv) biological consequence: The shepherin I-Zn(II) fibrils are highly antifungal. What is of particular interest, both fibril formation and strong anticandidal activity are only observed for the shepherin I-Zn(II) complex, linking its structural rearrangement that occurs after metal binding with its morphology and biological activity.
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Affiliation(s)
- Joanna Wątły
- Faculty of Chemistry, University of Wrocław, F. Joliot-Curie 14, 50-383 Wrocław, Poland
| | - Klaudia Szarszoń
- Faculty of Chemistry, University of Wrocław, F. Joliot-Curie 14, 50-383 Wrocław, Poland
| | - Aleksandra Mikołajczyk
- Screening of Biological Activity Assays and Collection of Biological Material Laboratory, Wrocław Medical University Biobank, Faculty of Pharmacy, Wrocław Medical University, 50-556 Wrocław, Poland
| | - Manuela Grelich-Mucha
- Faculty of Chemistry, Wrocław University of Science and Technology, Wyb, Wyspiańskiego 27, 50-370 Wrocław, Poland
| | - Agnieszka Matera-Witkiewicz
- Screening of Biological Activity Assays and Collection of Biological Material Laboratory, Wrocław Medical University Biobank, Faculty of Pharmacy, Wrocław Medical University, 50-556 Wrocław, Poland
| | - Joanna Olesiak-Bańska
- Faculty of Chemistry, Wrocław University of Science and Technology, Wyb, Wyspiańskiego 27, 50-370 Wrocław, Poland
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13
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Mo F, Zhou J, Yu C, Liu F, Jumili M, Wu Y, Xie X. Decoupling locally enhanced electric field treatment (LEEFT) intensity and copper release by applying asymmetric electric pulses for water disinfection. WATER RESEARCH X 2023; 21:100206. [PMID: 38098885 PMCID: PMC10719566 DOI: 10.1016/j.wroa.2023.100206] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/12/2023] [Revised: 11/08/2023] [Accepted: 11/10/2023] [Indexed: 12/17/2023]
Abstract
Copper has well-known anti-microbial properties but is typically not considered for drinking water disinfection because of its health risk to human at efficient biocidal concentrations. Locally enhanced electric field treatment (LEEFT) is a cutting-edge technique that aims to inactivate bacteria by generating aqueous pores on the cell membrane through the application of a strong electric field. LEEFT can also increase the permeability of the cell membrane, which promotes the uptake of chemical disinfectants to reduce the required biocidal concentrations. Previously, a coaxial-electrode copper ionization cell (CECIC) was developed to combine copper disinfection with LEEFT, demonstrating superior disinfection efficiency with low effluent copper concentrations (<0.5 mg/L). However, using direct-current (DC) voltages results in a dilemma that a higher voltage is necessary for effective LEEFT disinfection, but a lower voltage is required to limit Cu release. Here, asymmetric electric pulses are employed to decouple the LEEFT intensity from copper release in the CECIC. In this case, LEEFT intensity is primarily determined by the pulse amplitude while the copper release is controlled by the pulse offset. We have demonstrated that the use of asymmetric electric pulses achieves significantly higher inactivation efficiency compared to the DC voltages with the similar level of Cu release. For the water with conductivity similar to tap water (∼100 μS/cm), a high inactivation efficiency of 4.7-log is achieved with only 0.49 mg/L copper release. These findings highlight the potential of asymmetric electric pulses as a promising alternative to DC voltages for the practical application of LEEFT-Cu systems in the future.
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Affiliation(s)
- Feiyang Mo
- School of Civil & Environmental Engineering, Georgia Institute of Technology, United States
| | - Jianfeng Zhou
- School of Civil & Environmental Engineering, Georgia Institute of Technology, United States
| | - Cecilia Yu
- School of Civil & Environmental Engineering, Georgia Institute of Technology, United States
| | - Feifei Liu
- School of Civil & Environmental Engineering, Georgia Institute of Technology, United States
| | - Manhitha Jumili
- School of Civil & Environmental Engineering, Georgia Institute of Technology, United States
| | - Yuxiao Wu
- School of Civil & Environmental Engineering, Georgia Institute of Technology, United States
| | - Xing Xie
- School of Civil & Environmental Engineering, Georgia Institute of Technology, United States
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14
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Shin MK, Park HR, Hwang IW, Bu KB, Jang BY, Lee SH, Oh JW, Yoo JS, Sung JS. In Silico-Based Design of a Hybrid Peptide with Antimicrobial Activity against Multidrug-Resistant Pseudomonas aeruginosa Using a Spider Toxin Peptide. Toxins (Basel) 2023; 15:668. [PMID: 38133172 PMCID: PMC10747792 DOI: 10.3390/toxins15120668] [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: 10/16/2023] [Revised: 11/12/2023] [Accepted: 11/22/2023] [Indexed: 12/23/2023] Open
Abstract
The escalating prevalence of antibiotic-resistant bacteria poses an immediate and grave threat to public health. Antimicrobial peptides (AMPs) have gained significant attention as a promising alternative to conventional antibiotics. Animal venom comprises a diverse array of bioactive compounds, which can be a rich source for identifying new functional peptides. In this study, we identified a toxin peptide, Lycotoxin-Pa1a (Lytx-Pa1a), from the transcriptome of the Pardosa astrigera spider venom gland. To enhance its functional properties, we employed an in silico approach to design a novel hybrid peptide, KFH-Pa1a, by predicting antibacterial and cytotoxic functionalities and incorporating the amino-terminal Cu(II)- and Ni(II) (ATCUN)-binding motif. KFH-Pa1a demonstrated markedly superior antimicrobial efficacy against pathogens, including multidrug-resistant (MDR) Pseudomonas aeruginosa, compared to Lytx-Pa1a. Notably, KFH-Pa1a exerted several distinct mechanisms, including the disruption of the bacterial cytoplasmic membrane, the generation of intracellular ROS, and the cleavage and inhibition of bacterial DNA. Additionally, the hybrid peptide showed synergistic activity when combined with conventional antibiotics. Our research not only identified a novel toxin peptide from spider venom but demonstrated in silico-based design of hybrid AMP with strong antimicrobial activity that can contribute to combating MDR pathogens, broadening the utilization of biological resources by incorporating computational approaches.
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Affiliation(s)
- Min Kyoung Shin
- Department of Life Science, Dongguk University-Seoul, Goyang 10326, Republic of Korea; (M.K.S.); (H.-R.P.); (I.-W.H.); (K.-B.B.); (B.-Y.J.); (S.-H.L.); (J.W.O.)
| | - Hye-Ran Park
- Department of Life Science, Dongguk University-Seoul, Goyang 10326, Republic of Korea; (M.K.S.); (H.-R.P.); (I.-W.H.); (K.-B.B.); (B.-Y.J.); (S.-H.L.); (J.W.O.)
| | - In-Wook Hwang
- Department of Life Science, Dongguk University-Seoul, Goyang 10326, Republic of Korea; (M.K.S.); (H.-R.P.); (I.-W.H.); (K.-B.B.); (B.-Y.J.); (S.-H.L.); (J.W.O.)
| | - Kyung-Bin Bu
- Department of Life Science, Dongguk University-Seoul, Goyang 10326, Republic of Korea; (M.K.S.); (H.-R.P.); (I.-W.H.); (K.-B.B.); (B.-Y.J.); (S.-H.L.); (J.W.O.)
| | - Bo-Young Jang
- Department of Life Science, Dongguk University-Seoul, Goyang 10326, Republic of Korea; (M.K.S.); (H.-R.P.); (I.-W.H.); (K.-B.B.); (B.-Y.J.); (S.-H.L.); (J.W.O.)
| | - Seung-Ho Lee
- Department of Life Science, Dongguk University-Seoul, Goyang 10326, Republic of Korea; (M.K.S.); (H.-R.P.); (I.-W.H.); (K.-B.B.); (B.-Y.J.); (S.-H.L.); (J.W.O.)
| | - Jin Wook Oh
- Department of Life Science, Dongguk University-Seoul, Goyang 10326, Republic of Korea; (M.K.S.); (H.-R.P.); (I.-W.H.); (K.-B.B.); (B.-Y.J.); (S.-H.L.); (J.W.O.)
| | - Jung Sun Yoo
- Species Diversity Research Division, National Institute of Biological Resources, Incheon 22689, Republic of Korea;
| | - Jung-Suk Sung
- Department of Life Science, Dongguk University-Seoul, Goyang 10326, Republic of Korea; (M.K.S.); (H.-R.P.); (I.-W.H.); (K.-B.B.); (B.-Y.J.); (S.-H.L.); (J.W.O.)
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15
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Płonka D, Wiśniewska MD, Ziemska-Legięcka J, Grynberg M, Bal W. The Cu(II) affinity constant and reactivity of Hepcidin-25, the main iron regulator in human blood. J Inorg Biochem 2023; 248:112364. [PMID: 37689037 DOI: 10.1016/j.jinorgbio.2023.112364] [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: 07/11/2023] [Revised: 08/21/2023] [Accepted: 09/01/2023] [Indexed: 09/11/2023]
Abstract
Hepcidin is an iron regulatory hormone that does not bind iron directly. Instead, its mature 25-peptide form (H25) contains a binding site for other metals, the so-called ATCUN/NTS (amino-terminal Cu/Ni binding site). The Cu(II)-hepcidin complex was previously studied, but due to poor solubility and difficult handling of the peptide the definitive account on the binding equilibrium was not obtained reliably. In this study we performed a series of fluorescence competition experiments between H25 and its model peptides containing the same ATCUN/NTS site and determined the Cu(II) conditional binding constant of the CuH25 complex at pH 7.4, CK7.4 = 4 ± 2 × 1014 M-1. This complex was found to be very inert in exchange reactions and poorly reactive in the ascorbate consumption test. The consequences of these findings for the putative role of Cu(II) interactions with H25 are discussed.
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Affiliation(s)
- Dawid Płonka
- Institute of Biochemistry and Biophysics, Polish Academy of Sciences, Pawińskiego 5a, Warsaw 02-106, Poland
| | - Marta D Wiśniewska
- Institute of Biochemistry and Biophysics, Polish Academy of Sciences, Pawińskiego 5a, Warsaw 02-106, Poland
| | - Joanna Ziemska-Legięcka
- Institute of Biochemistry and Biophysics, Polish Academy of Sciences, Pawińskiego 5a, Warsaw 02-106, Poland
| | - Marcin Grynberg
- Institute of Biochemistry and Biophysics, Polish Academy of Sciences, Pawińskiego 5a, Warsaw 02-106, Poland
| | - Wojciech Bal
- Institute of Biochemistry and Biophysics, Polish Academy of Sciences, Pawińskiego 5a, Warsaw 02-106, Poland.
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16
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Waters JE, Stevens-Cullinane L, Siebenmann L, Hess J. Recent advances in the development of metal complexes as antibacterial agents with metal-specific modes of action. Curr Opin Microbiol 2023; 75:102347. [PMID: 37467616 DOI: 10.1016/j.mib.2023.102347] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2023] [Revised: 05/19/2023] [Accepted: 05/23/2023] [Indexed: 07/21/2023]
Abstract
The mounting burden of antimicrobial resistance (AMR) is one of the most concerning threats to public health worldwide. With low economic incentives and a dwindling supply of new drugs in clinical pipelines, more innovative approaches to novel drug design and development are desperately required. Metal-based compounds are rapidly emerging as an alternative to organic drugs, as they have the ability to kill pathogens via metal-specific modes of action. We herein review recent advances in metal-based antibacterial agents, including metal complexes, metal ions and catalytic metallodrugs. The review concludes with a perspective on the rational design of metal-based antibiotics, and how we can exploit their unique properties to tackle AMR.
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Affiliation(s)
- Jessica E Waters
- Biological Inorganic Chemistry Laboratory, The Francis Crick Institute, London NW1 1AT, United Kingdom; Department of Chemistry, King's College London, Britannia House, 7 Trinity Street, London SE1 1DB, United Kingdom
| | - Lars Stevens-Cullinane
- Biological Inorganic Chemistry Laboratory, The Francis Crick Institute, London NW1 1AT, United Kingdom; Department of Chemistry, King's College London, Britannia House, 7 Trinity Street, London SE1 1DB, United Kingdom
| | - Lukas Siebenmann
- Biological Inorganic Chemistry Laboratory, The Francis Crick Institute, London NW1 1AT, United Kingdom; Department of Chemistry, King's College London, Britannia House, 7 Trinity Street, London SE1 1DB, United Kingdom
| | - Jeannine Hess
- Biological Inorganic Chemistry Laboratory, The Francis Crick Institute, London NW1 1AT, United Kingdom; Department of Chemistry, King's College London, Britannia House, 7 Trinity Street, London SE1 1DB, United Kingdom.
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17
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Suchi SA, Lee DY, Kim YK, Kang SS, Bilkis T, Yoo JC. Synergistic Effect, Improved Cell Selectivity, and Elucidating the Action Mechanism of Antimicrobial Peptide YS12. Int J Mol Sci 2023; 24:13522. [PMID: 37686328 PMCID: PMC10487915 DOI: 10.3390/ijms241713522] [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: 06/06/2023] [Revised: 08/15/2023] [Accepted: 08/25/2023] [Indexed: 09/10/2023] Open
Abstract
Antimicrobial peptides (AMPs) have attracted considerable attention as potential substitutes for traditional antibiotics. In our previous research, a novel antimicrobial peptide YS12 derived from the Bacillus velezensis strain showed broad-spectrum antimicrobial activity against Gram-positive and Gram-negative bacteria. In this study, the fractional inhibitory concentration index (FICI) indicated that combining YS12 with commercial antibiotics produced a synergistic effect. Following these findings, the combination of YS12 with an antibiotic resulted in a faster killing effect against bacterial strains compared to the treatment with the peptide YS12 or antibiotic alone. The peptide YS12 maintained its antimicrobial activity under different physiological salts (Na+, Mg2+, and Fe3+). Most importantly, YS12 exhibited no cytotoxicity towards Raw 264.7 cells and showed low hemolytic activity, whereas positive control melittin indicated extremely high toxicity. In terms of mode of action, we found that peptide YS12 was able to bind with LPS through electrostatic interaction. The results from fluorescent measurement revealed that peptide YS12 damaged the integrity of the bacterial membrane. Confocal laser microscopy further confirmed that the localization of peptide YS12 was almost in the cytoplasm of the cells. Peptide YS12 also exhibited anti-inflammatory activity by reducing the release of LPS-induced pro-inflammatory mediators such as TNF-α, IL-1β, and NO. Collectively, these properties strongly suggest that the antimicrobial peptide YS12 may be a promising candidate for treating microbial infections and inflammation.
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Affiliation(s)
- Suzia Aktar Suchi
- Department of Pharmacy, College of Pharmacy, Chosun University, Gwangju 61452, Republic of Korea
| | - Dae Young Lee
- Department of Herbal Crop Research, National Institute of Horticultural and Herbal Science, RDA, Eumseong 27709, Republic of Korea
| | - Young Kyun Kim
- Department of Pharmacy, College of Pharmacy, Chosun University, Gwangju 61452, Republic of Korea
| | - Seong Soo Kang
- Department of Veterinary Medicine and BK21 Four Program, Chonnam National University, Gwangju 61186, Republic of Korea
| | - Tahmina Bilkis
- Department of Biomedical Sciences, Chosun University, Gwangju 61452, Republic of Korea
| | - Jin Cheol Yoo
- Department of Pharmacy, College of Pharmacy, Chosun University, Gwangju 61452, Republic of Korea
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18
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Dudek D, Miller A, Hecel A, Kola A, Valensin D, Mikołajczyk A, Barcelo-Oliver M, Matera-Witkiewicz A, Rowińska-Żyrek M. Semenogelins Armed in Zn(II) and Cu(II): May Bioinorganic Chemistry Help Nature to Cope with Enterococcus faecalis? Inorg Chem 2023; 62:14103-14115. [PMID: 37582221 PMCID: PMC10466376 DOI: 10.1021/acs.inorgchem.3c02390] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2023] [Indexed: 08/17/2023]
Abstract
Proteolytic degradation of semenogelins, the most abundant proteins from human semen, results in the formation of 26- and 29-amino acid peptides (SgIIA and SgI-29, respectively), which share a common 15 amino acid fragment (Sg-15). All three ligands are effective Zn(II) and Cu(II) binders; in solution, a variety of differently metalated species exist in equilibrium, with the [NH2, 3Nim] donor set prevailing at physiological pH in the case of both metals. For the first time, the Cu(II)-induced antimicrobial activity of Sg-15 against Enterococcus faecalis is shown. In the case of the two native semenogelin fragment metal complexes, the strong local positive charge in the metal-bound HH motif correlates well with their antimicrobial activity. A careful analysis of semenogelins' metal coordination behavior reveals two facts: (i) The histamine-like Cu(II) binding mode of SgI-29 strongly increases the stability of such a complex below pH 6 (with respect to the non-histamine-like binding of SgIIA), while in the case of the SgI-29 Zn(II)-histamine-like species, the stability enhancement is less pronounced. (ii) The HH sequence is a more tempting site for Cu(II) ions than the HXH one.
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Affiliation(s)
- Dorota Dudek
- Faculty
of Chemistry, University of Wrocław, 50-383 Wrocław, Poland
| | - Adriana Miller
- Faculty
of Chemistry, University of Wrocław, 50-383 Wrocław, Poland
| | - Aleksandra Hecel
- Faculty
of Chemistry, University of Wrocław, 50-383 Wrocław, Poland
| | - Arian Kola
- Department
of Biotechnology, Chemistry and Pharmacy, University of Siena, 53100 Siena, Italy
| | - Daniela Valensin
- Department
of Biotechnology, Chemistry and Pharmacy, University of Siena, 53100 Siena, Italy
| | - Aleksandra Mikołajczyk
- Screening
of Biological Activity Assays and Collection of Biological Material
Laboratory, Wroclaw Medical University Biobank,
Faculty of Pharmacy, Wrocław Medical University, 50-556 Wroclaw, Poland
| | - Miquel Barcelo-Oliver
- Department
of Chemistry, University of Balearic Islands, 07122 Palma de
Mallorca, Spain
| | - Agnieszka Matera-Witkiewicz
- Screening
of Biological Activity Assays and Collection of Biological Material
Laboratory, Wroclaw Medical University Biobank,
Faculty of Pharmacy, Wrocław Medical University, 50-556 Wroclaw, Poland
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19
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Zimmeter K, Vileno B, Platas-Iglesias C, Vinjamuri B, Sour A, Faller P. Derivatization of the Peptidic Xxx-Zzz-His Motif toward a Ligand with Attomolar Cu II Affinity under Maintaining High Selectivity and Fast Redox Silencing. Inorg Chem 2023. [PMID: 37269299 DOI: 10.1021/acs.inorgchem.3c00480] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Cu chelation in biological systems is of interest as a tool to study the metabolism of this essential metal or for applications in the case of diseases with a systemic or local Cu overload, such as Wilson's or Alzheimer's disease. The choice of the chelating agent must meet several criteria. Among others, affinities and kinetics of metal binding and related metal selectivity are important parameters of the chelators to consider. Here, we report on the synthesis and characterization of Cu-binding properties of two ligands, L1 and L2, derivatives of the well-known peptidic CuII-binding motif Xxx-Zzz-His (also called ATCUN), where CuII is bound to the N-terminal amine, two amidates, and the imidazole. In either L, the N-terminal amine was replaced with a pyridine, and for L2, one amide was replaced with an amine compared to Xxx-Zzz-His. In particular, L2 showed several interesting features, including a CuII-binding affinity with a log KDapp = -16.0 similar to that of EDTA and stronger than all reported ATCUN peptides. L2 showed high selectivity for CuII over ZnII and other essential metal ions, even under the challenging conditions of the presence of human serum albumin. Further, L2 showed fast and efficient CuII redox silencing qualities and CuII-L2 was stable in the presence of mM GSH concentrations. Benefitting the fact that L2 can be easily elongated on its peptide part by standard SPPS to add other functions, L2 has attractive properties as a CuII chelator for application in biological systems.
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Affiliation(s)
- Katharina Zimmeter
- Institut de Chimie (UMR 7177), Université de Strasbourg, CNRS, 4 Rue Blaise Pascal, 67000 Strasbourg, France
| | - Bertrand Vileno
- Institut de Chimie (UMR 7177), Université de Strasbourg, CNRS, 4 Rue Blaise Pascal, 67000 Strasbourg, France
| | - Carlos Platas-Iglesias
- Departamento de Química Fundamental, Universidade da Coruña, Campus da Zapateira, Rúa da Fraga 10, 15008 A Coruña, Spain
| | - Bharath Vinjamuri
- Institut de Chimie (UMR 7177), Université de Strasbourg, CNRS, 4 Rue Blaise Pascal, 67000 Strasbourg, France
| | - Angélique Sour
- Institut de Chimie (UMR 7177), Université de Strasbourg, CNRS, 4 Rue Blaise Pascal, 67000 Strasbourg, France
| | - Peter Faller
- Institut de Chimie (UMR 7177), Université de Strasbourg, CNRS, 4 Rue Blaise Pascal, 67000 Strasbourg, France
- Institut Universitaire de France (IUF), 1 rue Descartes, 75231 Paris, France
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20
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Cao R, Li L, Xu Z, Li J, Wu D, Wang Y, Zhu H. The lipidation and glycosylation enabling bioactivity enhancement and structural change of antibacterial peptide G3. Bioorg Med Chem Lett 2023; 90:129322. [PMID: 37182609 DOI: 10.1016/j.bmcl.2023.129322] [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: 03/28/2023] [Revised: 05/03/2023] [Accepted: 05/07/2023] [Indexed: 05/16/2023]
Abstract
Bacterial resistance has led to increased interest in the use of antibacterial peptides (AMPs), but their clinical application is limited by poor stability and solubility, as well as complex cytotoxicity. Chemical modification is a common strategy to modulate AMPs. In this study, a de novo designed AMP (G3) was modified by adding an alkyl acid at the N-terminal and a monosaccharide at the C-terminal. Bio-activity assays demonstrated that conjugation with n-caprylic acid increased the peptide's antibacterial activity and permeabilized the membrane. Attachment of glucose or galactose at the C-terminal improved its biofilm inhibitory capacity and marginally reduced cytotoxicity. The hybrid peptide, containing both n-caprylic acid and galactose, exhibited excellent antibacterial and antibiofilm activity, as well as permeabilized the outer membrane.
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Affiliation(s)
- Ruipin Cao
- Fujian-Taiwan Science and Technology Cooperation Base of Biomedical Materials and Tissue Engineering, Engineering Research Center of Industrial Biocatalysis, Fujian Provincial Key Laboratory of Advanced Materials Oriented Chemical Engineering, College of Chemistry and Materials Science, Fujian Normal University, Fuzhou, Fujian, 350007, China
| | - Li Li
- Fujian-Taiwan Science and Technology Cooperation Base of Biomedical Materials and Tissue Engineering, Engineering Research Center of Industrial Biocatalysis, Fujian Provincial Key Laboratory of Advanced Materials Oriented Chemical Engineering, College of Chemistry and Materials Science, Fujian Normal University, Fuzhou, Fujian, 350007, China
| | - Zuxian Xu
- Fujian-Taiwan Science and Technology Cooperation Base of Biomedical Materials and Tissue Engineering, Engineering Research Center of Industrial Biocatalysis, Fujian Provincial Key Laboratory of Advanced Materials Oriented Chemical Engineering, College of Chemistry and Materials Science, Fujian Normal University, Fuzhou, Fujian, 350007, China
| | - Jiaxin Li
- Fujian-Taiwan Science and Technology Cooperation Base of Biomedical Materials and Tissue Engineering, Engineering Research Center of Industrial Biocatalysis, Fujian Provincial Key Laboratory of Advanced Materials Oriented Chemical Engineering, College of Chemistry and Materials Science, Fujian Normal University, Fuzhou, Fujian, 350007, China
| | - Danli Wu
- Fujian-Taiwan Science and Technology Cooperation Base of Biomedical Materials and Tissue Engineering, Engineering Research Center of Industrial Biocatalysis, Fujian Provincial Key Laboratory of Advanced Materials Oriented Chemical Engineering, College of Chemistry and Materials Science, Fujian Normal University, Fuzhou, Fujian, 350007, China
| | - Yinglu Wang
- Fujian-Taiwan Science and Technology Cooperation Base of Biomedical Materials and Tissue Engineering, Engineering Research Center of Industrial Biocatalysis, Fujian Provincial Key Laboratory of Advanced Materials Oriented Chemical Engineering, College of Chemistry and Materials Science, Fujian Normal University, Fuzhou, Fujian, 350007, China; State Key Laboratory of Natural and Biomimetic Drugs, Peking University, Beijing 100191, China.
| | - Hu Zhu
- Fujian-Taiwan Science and Technology Cooperation Base of Biomedical Materials and Tissue Engineering, Engineering Research Center of Industrial Biocatalysis, Fujian Provincial Key Laboratory of Advanced Materials Oriented Chemical Engineering, College of Chemistry and Materials Science, Fujian Normal University, Fuzhou, Fujian, 350007, China.
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21
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Asensio-Calavia P, González-Acosta S, Otazo-Pérez A, López MR, Morales-delaNuez A, Pérez de la Lastra JM. Teleost Piscidins-In Silico Perspective of Natural Peptide Antibiotics from Marine Sources. Antibiotics (Basel) 2023; 12:antibiotics12050855. [PMID: 37237758 DOI: 10.3390/antibiotics12050855] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2023] [Revised: 04/28/2023] [Accepted: 05/02/2023] [Indexed: 05/28/2023] Open
Abstract
Fish, like all other animals, are exposed to constant contact with microbes, both on their skin and on the surfaces of their respiratory and digestive systems. Fish have a system of non-specific immune responses that provides them with initial protection against infection and allows them to survive under normal conditions despite the presence of these potential invaders. However, fish are less protected against invading diseases than other marine vertebrates because their epidermal surface, composed primarily of living cells, lacks the keratinized skin that serves as an efficient natural barrier in other marine vertebrates. Antimicrobial peptides (AMPs) are one type of innate immune protection present in all life forms. AMPs have been shown to have a broader range of biological effects than conventional antibiotics, including antibacterial, antiviral, antiprotozoal, and antifungal effects. Although other AMPs, such as defensins and hepcidins, are found in all vertebrates and are relatively well conserved, piscidins are found exclusively in Teleost fish and are not found in any other animal. Therefore, there is less information on the expression and bioactivity of piscidins than on other AMPs. Piscidins are highly effective against Gram-positive and Gram-negative bacteria that cause disease in fish and humans and have the potential to be used as pharmacological anti-infectives in biomedicine and aquaculture. To better understand the potential benefits and limitations of using these peptides as therapeutic agents, we are conducting a comprehensive study of the Teleost piscidins included in the "reviewed" category of the UniProt database using bioinformatics tools. They all have amphipathic alpha-helical structures. The amphipathic architecture of piscidin peptides and positively charged residues influence their antibacterial activity. These alpha-helices are intriguing antimicrobial drugs due to their stability in high-salt and metal environments. New treatments for multidrug-resistant bacteria, cancer, and inflammation may be inspired by piscidin peptides.
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Affiliation(s)
- Patricia Asensio-Calavia
- Biotechnology of Macromolecules Research Group, Instituto de Productos Naturales y Agrobiología (IPNA-CSIC), Avda. Astrofísico Francisco Sánchez, 3, 38206 San Cristóbal de La Laguna, Spain
- School of Doctoral and Graduate Studies, Universidad de La Laguna, Avda. Astrofísico Francisco Sánchez, SN. Edificio Calabaza-Apdo. 456, 38200 San Cristóbal de La Laguna, Spain
| | - Sergio González-Acosta
- Biotechnology of Macromolecules Research Group, Instituto de Productos Naturales y Agrobiología (IPNA-CSIC), Avda. Astrofísico Francisco Sánchez, 3, 38206 San Cristóbal de La Laguna, Spain
- School of Doctoral and Graduate Studies, Universidad de La Laguna, Avda. Astrofísico Francisco Sánchez, SN. Edificio Calabaza-Apdo. 456, 38200 San Cristóbal de La Laguna, Spain
| | - Andrea Otazo-Pérez
- Biotechnology of Macromolecules Research Group, Instituto de Productos Naturales y Agrobiología (IPNA-CSIC), Avda. Astrofísico Francisco Sánchez, 3, 38206 San Cristóbal de La Laguna, Spain
- School of Doctoral and Graduate Studies, Universidad de La Laguna, Avda. Astrofísico Francisco Sánchez, SN. Edificio Calabaza-Apdo. 456, 38200 San Cristóbal de La Laguna, Spain
| | - Manuel R López
- Biotechnology of Macromolecules Research Group, Instituto de Productos Naturales y Agrobiología (IPNA-CSIC), Avda. Astrofísico Francisco Sánchez, 3, 38206 San Cristóbal de La Laguna, Spain
| | - Antonio Morales-delaNuez
- Biotechnology of Macromolecules Research Group, Instituto de Productos Naturales y Agrobiología (IPNA-CSIC), Avda. Astrofísico Francisco Sánchez, 3, 38206 San Cristóbal de La Laguna, Spain
| | - José Manuel Pérez de la Lastra
- Biotechnology of Macromolecules Research Group, Instituto de Productos Naturales y Agrobiología (IPNA-CSIC), Avda. Astrofísico Francisco Sánchez, 3, 38206 San Cristóbal de La Laguna, Spain
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22
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Wu YX, Hu SY, Lu XJ, Hu JR. Identification and characterization of two novel antimicrobial peptides from Japanese sea bass (Lateolabrax japonicus) with antimicrobial activity and MO/MФ activation capability. DEVELOPMENTAL AND COMPARATIVE IMMUNOLOGY 2023; 145:104726. [PMID: 37149238 DOI: 10.1016/j.dci.2023.104726] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/18/2023] [Revised: 05/04/2023] [Accepted: 05/04/2023] [Indexed: 05/08/2023]
Abstract
Piscidins participate in the innate immune response of fish, which aims to eliminate recognized foreign microbes and restore the homeostasis of immune system. We characterized two piscidin-like antimicrobial peptides (LjPL-3 and LjPL-2) isolated from Japanese sea bass (Lateolabrax japonicus). LjPL-3 and LjPL-2 showed different expression patterns in tissues. After Vibrio harveyi infection, the mRNA expression of LjPL-3 and LjPL-2 was upregulated in the liver, spleen, head kidney, and trunk kidney. The synthetic mature peptides LjPL-3 and LjPL-2 exhibited different antimicrobial spectra. Furthermore, LjPL-3 and LjPL-2 treatments decreased inflammatory cytokine production while promoting chemotaxis and phagocytosis in monocytes/macrophages (MO/MФ). LjPL-2, but not LjPL-3, displayed bacterial killing capability in MO/MФ. LjPL-3 and LjPL-2 administration increased Japanese sea bass survival after V. harveyi challenge, which was accompanied by a decline in bacterial burden. These data suggested that LjPL-3 and LjPL-2 participate in immune response through direct bacterial killing and MO/MФ activation.
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Affiliation(s)
- Yi-Xin Wu
- School of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou, 311121, Zhejiang, China; Department of Physiology, and Department of Hepatobiliary and Pancreatic Surgery of the First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310058, Zhejiang, China
| | - Shuai-Yue Hu
- Hangzhou Medical College, Hangzhou, 310013, Zhejiang, China
| | - Xin-Jiang Lu
- Department of Physiology, and Department of Hepatobiliary and Pancreatic Surgery of the First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310058, Zhejiang, China; Laboratory for Marine Biology and Biotechnology, Pilot National Laboratory for Marine Science and Technology, Qingdao, China.
| | - Jian-Rao Hu
- School of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou, 311121, Zhejiang, China.
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23
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Roy A, Sarangi NK, Ghosh S, Prabhakaran A, Keyes TE. Leaflet by Leaflet Synergistic Effects of Antimicrobial Peptides on Bacterial and Mammalian Membrane Models. J Phys Chem Lett 2023; 14:3920-3928. [PMID: 37075204 PMCID: PMC10150393 DOI: 10.1021/acs.jpclett.3c00119] [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: 05/03/2023]
Abstract
Antimicrobial peptides (AMPs) offer significant hope in the fight against antibiotic resistance. Operating via a mechanism different from that of antibiotics, they target the microbial membrane and ideally should damage it without impacting mammalian cells. Here, the interactions of two AMPs, magainin 2 and PGLa, and their synergistic effects on bacterial and mammalian membrane models were studied using electrochemical impedance spectroscopy, atomic force microscopy (AFM), and fluorescence correlation spectroscopy. Toroidal pore formation was observed by AFM when the two AMPs were combined, while individually AMP effects were confined to the exterior leaflet of the bacterial membrane analogue. Using microcavity-supported lipid bilayers, the diffusivity of each bilayer leaflet could be studied independently, and we observed that combined, the AMPs penetrate both leaflets of the bacterial model but individually each peptide had a limited impact on the proximal leaflet of the bacterial model. The impact of AMPs on a ternary, mammalian mimetic membrane was much weaker.
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Affiliation(s)
- Arpita Roy
- School of Chemical Sciences and National Centre for Sensor Research, Dublin City University, Glasnevin, Dublin 9, Ireland
| | - Nirod Kumar Sarangi
- School of Chemical Sciences and National Centre for Sensor Research, Dublin City University, Glasnevin, Dublin 9, Ireland
| | - Surajit Ghosh
- School of Chemical Sciences and National Centre for Sensor Research, Dublin City University, Glasnevin, Dublin 9, Ireland
| | - Amrutha Prabhakaran
- School of Chemical Sciences and National Centre for Sensor Research, Dublin City University, Glasnevin, Dublin 9, Ireland
| | - Tia E Keyes
- School of Chemical Sciences and National Centre for Sensor Research, Dublin City University, Glasnevin, Dublin 9, Ireland
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24
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Liu L, Li S, Yang K, Chen Z, Li Q, Zheng L, Wu Z, Zhang X, Su L, Wu Y, Song J. Drug-Free Antimicrobial Nanomotor for Precise Treatment of Multidrug-Resistant Bacterial Infections. NANO LETTERS 2023; 23:3929-3938. [PMID: 37129144 DOI: 10.1021/acs.nanolett.3c00632] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
Manufacturing heteronanostructures with specific physicochemical characteristics and tightly controllable designs is very appealing. Herein, we reported NIR-II light-driven dual plasmonic (AuNR-SiO2-Cu7S4) antimicrobial nanomotors with an intended Janus configuration through the overgrowth of copper-rich Cu7S4 nanocrystals at only one high-curvature site of Au nanorods (Au NRs). These nanomotors were applied for photoacoustic imaging (PAI)-guided synergistic photothermal and photocatalytic treatment of bacterial infections. Both the photothermal performance and photocatalytic activity of the nanomotors are dramatically improved owing to the strong plasmon coupling between Au NRs and the Cu7S4 component and enhanced energy transfer. The motion behavior of nanomotors promotes transdermal penetration and enhances the matter-bacteria interaction. More importantly, the directional navigation and synergistic antimicrobial activity of the nanomotors could be synchronously driven by NIR-II light. The marriage of active motion and enhanced antibacterial activity resulted in the expected good antibacterial effects in an abscess infection mouse model.
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Affiliation(s)
- Luntao Liu
- Fujian Science & Technology Innovation Laboratory for Optoelectronic Information of China, MOE Key Laboratory for Analytical Science of Food Safety and Biology, College of Chemistry, Fuzhou University, Fuzhou 350108, China
| | - Shuqin Li
- School of Chemical and Biological Engineering, Qilu Institute of Technology, Jinan 250200, P. R. China
| | - Kaiqiong Yang
- Fujian Science & Technology Innovation Laboratory for Optoelectronic Information of China, MOE Key Laboratory for Analytical Science of Food Safety and Biology, College of Chemistry, Fuzhou University, Fuzhou 350108, China
| | - Zhongxiang Chen
- Fujian Science & Technology Innovation Laboratory for Optoelectronic Information of China, MOE Key Laboratory for Analytical Science of Food Safety and Biology, College of Chemistry, Fuzhou University, Fuzhou 350108, China
| | - Qingqing Li
- Fujian Science & Technology Innovation Laboratory for Optoelectronic Information of China, MOE Key Laboratory for Analytical Science of Food Safety and Biology, College of Chemistry, Fuzhou University, Fuzhou 350108, China
| | - Liting Zheng
- Fujian Science & Technology Innovation Laboratory for Optoelectronic Information of China, MOE Key Laboratory for Analytical Science of Food Safety and Biology, College of Chemistry, Fuzhou University, Fuzhou 350108, China
| | - Zongsheng Wu
- Fujian Science & Technology Innovation Laboratory for Optoelectronic Information of China, MOE Key Laboratory for Analytical Science of Food Safety and Biology, College of Chemistry, Fuzhou University, Fuzhou 350108, China
| | - Xuan Zhang
- Fujian Science & Technology Innovation Laboratory for Optoelectronic Information of China, MOE Key Laboratory for Analytical Science of Food Safety and Biology, College of Chemistry, Fuzhou University, Fuzhou 350108, China
| | - Lichao Su
- Fujian Science & Technology Innovation Laboratory for Optoelectronic Information of China, MOE Key Laboratory for Analytical Science of Food Safety and Biology, College of Chemistry, Fuzhou University, Fuzhou 350108, China
| | - Ying Wu
- State Key Laboratory of Chemical Resource Engineering, College of Chemistry, Beijing University of Chemical Technology, Beijing 100029, China
| | - Jibin Song
- State Key Laboratory of Chemical Resource Engineering, College of Chemistry, Beijing University of Chemical Technology, Beijing 100029, China
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25
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Ma Y, Xu S, Yue P, Cao H, Zou Y, Wang L, Long H, Wu S, Ye Q. Synthesis and evaluation of water-soluble imidazolium salt chitin with broad-spectrum antimicrobial activity and excellent biocompatibility for infected wound healing. Carbohydr Polym 2023; 306:120575. [PMID: 36746566 DOI: 10.1016/j.carbpol.2023.120575] [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: 11/19/2022] [Revised: 01/04/2023] [Accepted: 01/08/2023] [Indexed: 01/13/2023]
Abstract
Infections caused by bacteria have long constituted a major threat to human health and the economy. Therefore, there is an urgent need to design broad-spectrum antibacterial materials possessing good biocompatibility to treat such infections. Herein, inspired by the good biocompatibility of chitin and antibacterial properties of imidazolium salts, a polysaccharide-based material, imidazolium salt chitin (IMSC), was homogeneously prepared using a facile method with epichlorohydrin as a chemical crosslinker to combine chitin with imidazole to enhance Staphylococcus aureus (S. aureus)-infected wound healing. The characteristics, antimicrobial properties, and biosafety of IMSC were evaluated. The results demonstrated successful grafting of imidazole onto chitin. Furthermore, IMSC exhibited good water solubility, broad-spectrum antimicrobial activity, hemocompatibility, and biocompatibility. Moreover, IMSC enabled complete healing of S. aureus-infected wound in Sprague-Dawley rats within 15 days of application, thus demonstrating that IMSC could reduce wound inflammation and remarkably accelerate wound healing owing to its efficient antibacterial activity and ability to promote collagen deposition in and around the wound area. Therefore, this study provides a promising and potential therapeutic strategy for infected wound healing by synthesizing a water-soluble and broad-spectrum antimicrobial material exhibiting good biocompatibility.
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Affiliation(s)
- Yongsheng Ma
- Zhongnan Hospital of Wuhan University, Institute of Hepatobiliary Diseases of Wuhan University, Transplant Center of Wuhan University, National Quality Control Center for Donated Organ Procurement, Hubei Key Laboratory of Medical Technology on Transplantation, Hubei Clinical Research Center for Natural Polymer Biological Liver, Hubei Engineering Center of Natural Polymer-based Medical Materials, Wuhan 430071, Hubei, PR China
| | - Shuyi Xu
- Wuhan University School of Nursing, Wuhan 430071, Hubei, PR China
| | - Pengpeng Yue
- Zhongnan Hospital of Wuhan University, Institute of Hepatobiliary Diseases of Wuhan University, Transplant Center of Wuhan University, National Quality Control Center for Donated Organ Procurement, Hubei Key Laboratory of Medical Technology on Transplantation, Hubei Clinical Research Center for Natural Polymer Biological Liver, Hubei Engineering Center of Natural Polymer-based Medical Materials, Wuhan 430071, Hubei, PR China
| | - Hankun Cao
- Zhongnan Hospital of Wuhan University, Institute of Hepatobiliary Diseases of Wuhan University, Transplant Center of Wuhan University, National Quality Control Center for Donated Organ Procurement, Hubei Key Laboratory of Medical Technology on Transplantation, Hubei Clinical Research Center for Natural Polymer Biological Liver, Hubei Engineering Center of Natural Polymer-based Medical Materials, Wuhan 430071, Hubei, PR China
| | - Yongkang Zou
- Zhongnan Hospital of Wuhan University, Institute of Hepatobiliary Diseases of Wuhan University, Transplant Center of Wuhan University, National Quality Control Center for Donated Organ Procurement, Hubei Key Laboratory of Medical Technology on Transplantation, Hubei Clinical Research Center for Natural Polymer Biological Liver, Hubei Engineering Center of Natural Polymer-based Medical Materials, Wuhan 430071, Hubei, PR China
| | - Lizhe Wang
- Zhongnan Hospital of Wuhan University, Institute of Hepatobiliary Diseases of Wuhan University, Transplant Center of Wuhan University, National Quality Control Center for Donated Organ Procurement, Hubei Key Laboratory of Medical Technology on Transplantation, Hubei Clinical Research Center for Natural Polymer Biological Liver, Hubei Engineering Center of Natural Polymer-based Medical Materials, Wuhan 430071, Hubei, PR China
| | - Haitao Long
- Zhongnan Hospital of Wuhan University, Institute of Hepatobiliary Diseases of Wuhan University, Transplant Center of Wuhan University, National Quality Control Center for Donated Organ Procurement, Hubei Key Laboratory of Medical Technology on Transplantation, Hubei Clinical Research Center for Natural Polymer Biological Liver, Hubei Engineering Center of Natural Polymer-based Medical Materials, Wuhan 430071, Hubei, PR China
| | - Shuangquan Wu
- Zhongnan Hospital of Wuhan University, Institute of Hepatobiliary Diseases of Wuhan University, Transplant Center of Wuhan University, National Quality Control Center for Donated Organ Procurement, Hubei Key Laboratory of Medical Technology on Transplantation, Hubei Clinical Research Center for Natural Polymer Biological Liver, Hubei Engineering Center of Natural Polymer-based Medical Materials, Wuhan 430071, Hubei, PR China.
| | - Qifa Ye
- Zhongnan Hospital of Wuhan University, Institute of Hepatobiliary Diseases of Wuhan University, Transplant Center of Wuhan University, National Quality Control Center for Donated Organ Procurement, Hubei Key Laboratory of Medical Technology on Transplantation, Hubei Clinical Research Center for Natural Polymer Biological Liver, Hubei Engineering Center of Natural Polymer-based Medical Materials, Wuhan 430071, Hubei, PR China; The Third Xiangya Hospital of Central South University, Research Center of National Health Ministry on Transplantation Medicine Engineering and Technology, Changsha 410013, Hunan, PR China.
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26
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Donaghy C, Javellana JG, Hong YJ, Djoko K, Angeles-Boza AM. The Synergy between Zinc and Antimicrobial Peptides: An Insight into Unique Bioinorganic Interactions. Molecules 2023; 28:molecules28052156. [PMID: 36903402 PMCID: PMC10004757 DOI: 10.3390/molecules28052156] [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: 01/05/2023] [Revised: 02/15/2023] [Accepted: 02/17/2023] [Indexed: 03/02/2023] Open
Abstract
Antimicrobial peptides (AMPs) are essential components of innate immunity across all species. AMPs have become the focus of attention in recent years, as scientists are addressing antibiotic resistance, a public health crisis that has reached epidemic proportions. This family of peptides represents a promising alternative to current antibiotics due to their broad-spectrum antimicrobial activity and tendency to avoid resistance development. A subfamily of AMPs interacts with metal ions to potentiate antimicrobial effectiveness, and, as such, they have been termed metalloAMPs. In this work, we review the scientific literature on metalloAMPs that enhance their antimicrobial efficacy when combined with the essential metal ion zinc(II). Beyond the role played by Zn(II) as a cofactor in different systems, it is well-known that this metal ion plays an important role in innate immunity. Here, we classify the different types of synergistic interactions between AMPs and Zn(II) into three distinct classes. By better understanding how each class of metalloAMPs uses Zn(II) to potentiate its activity, researchers can begin to exploit these interactions in the development of new antimicrobial agents and accelerate their use as therapeutics.
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Affiliation(s)
- Caroline Donaghy
- Department of Chemistry, University of Connecticut, Storrs, CT 06269, USA
| | | | - Young-Jin Hong
- Department of Chemistry, Durham University, Durham DH1 3LE, UK
| | - Karrera Djoko
- Department of Chemistry, Durham University, Durham DH1 3LE, UK
- Correspondence: (K.D.); (A.M.A.-B.)
| | - Alfredo M. Angeles-Boza
- Department of Chemistry, University of Connecticut, Storrs, CT 06269, USA
- Institute of Materials Sciences, University of Connecticut, Storrs, CT 06269, USA
- Correspondence: (K.D.); (A.M.A.-B.)
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27
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Morio KA, Sternowski RH, Brogden KA. Induction of Endogenous Antimicrobial Peptides to Prevent or Treat Oral Infection and Inflammation. Antibiotics (Basel) 2023; 12:antibiotics12020361. [PMID: 36830272 PMCID: PMC9952314 DOI: 10.3390/antibiotics12020361] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2023] [Revised: 02/03/2023] [Accepted: 02/05/2023] [Indexed: 02/11/2023] Open
Abstract
Antibiotics are often used to treat oral infections. Unfortunately, excessive antibiotic use can adversely alter oral microbiomes and promote the development of antibiotic-resistant microorganisms, which can be difficult to treat. An alternate approach could be to induce the local transcription and expression of endogenous oral antimicrobial peptides (AMPs). To assess the feasibility and benefits of this approach, we conducted literature searches to identify (i) the AMPs expressed in the oral cavity; (ii) the methods used to induce endogenous AMP expression; and (iii) the roles that expressed AMPs may have in regulating oral inflammation, immunity, healing, and pain. Search results identified human neutrophil peptides (HNP), human beta defensins (HBD), and cathelicidin AMP (CAMP) gene product LL-37 as prominent AMPs expressed by oral cells and tissues. HNP, HBD, and LL-37 expression can be induced by micronutrients (trace elements, elements, and vitamins), nutrients, macronutrients (mono-, di-, and polysaccharides, amino acids, pyropeptides, proteins, and fatty acids), proinflammatory agonists, thyroid hormones, and exposure to ultraviolet (UV) irradiation, red light, or near infrared radiation (NIR). Localized AMP expression can help reduce infection, inflammation, and pain and help oral tissues heal. The use of a specific inducer depends upon the overall objective. Inducing the expression of AMPs through beneficial foods would be suitable for long-term health protection. Additionally, the specialized metabolites or concentrated extracts that are utilized as dosage forms would maintain the oral and intestinal microbiome composition and control oral and intestinal infections. Inducing AMP expression using irradiation methodologies would be applicable to a specific oral treatment area in addition to controlling local infections while regulating inflammatory and healing processes.
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Affiliation(s)
| | | | - Kim A. Brogden
- College of Dentistry, The University of Iowa, Iowa City, IA 52242, USA
- Correspondence:
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28
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Studying Peptide-Metal Ion Complex Structures by Solution-State NMR. Int J Mol Sci 2022; 23:ijms232415957. [PMID: 36555599 PMCID: PMC9782655 DOI: 10.3390/ijms232415957] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2022] [Revised: 12/06/2022] [Accepted: 12/13/2022] [Indexed: 12/23/2022] Open
Abstract
Metal chelation can provide structural stability and form reactive centers in metalloproteins. Approximately one third of known protein structures are metalloproteins, and metal binding, or the lack thereof, is often implicated in disease, making it necessary to be able to study these systems in detail. Peptide-metal complexes are both present in nature and can provide a means to focus on the binding region of a protein and control experimental variables to a high degree. Structural studies of peptide complexes with metal ions by nuclear magnetic resonance (NMR) were surveyed for all the essential metal complexes and many non-essential metal complexes. The various methods used to study each metal ion are presented together with examples of recent research. Many of these metal systems have been individually reviewed and this current overview of NMR studies of metallopeptide complexes aims to provide a basis for inspiration from structural studies and methodology applied in the field.
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29
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Chen X, Wu X, Wang S. An optimized antimicrobial peptide analog acts as an antibiotic adjuvant to reverse methicillin-resistant Staphylococcus aureus. NPJ Sci Food 2022; 6:57. [PMID: 36509755 PMCID: PMC9744894 DOI: 10.1038/s41538-022-00171-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2022] [Accepted: 11/29/2022] [Indexed: 12/15/2022] Open
Abstract
The misuse of antibiotics in animal protein production has driven the emergence of a range of drug-resistant pathogens, which threaten existing public health security. Consequently, there is an urgent need to develop novel antimicrobials and new infection treatment options to address the challenges posed by the dramatic spread of antibiotic resistance. Piscidins, a class of fish-specific antimicrobial peptides (AMPs), are regarded as promising therapies for biomedical applications. Progress towards potential analogs from the piscidin family has been hampered by unenforceable structural optimization strategies. Here, we leverage a strategy of bioinformatics analysis combined with molecular dynamics (MD) simulation to identify specific functional hotspots in piscidins and rationally design related analogues. As expected, this approach yields a potent and non-toxic PIS-A-1 that can be used as an antibiotic adjuvant to reverse methicillin-resistant Staphylococcus aureus (MRSA) pathogens. Remarkably, the structural optimization scheme and application strategy proposed here will contribute richer therapeutic options for the safe production of animal protein.
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Affiliation(s)
- Xuan Chen
- grid.411604.60000 0001 0130 6528College of Chemical Engineering, Fuzhou University, Fuzhou, Fujian 350108 China ,grid.411604.60000 0001 0130 6528College of Biological Science and Engineering, Fuzhou University, Fuzhou, Fujian 350108 China
| | - Xiaoping Wu
- grid.411604.60000 0001 0130 6528College of Chemical Engineering, Fuzhou University, Fuzhou, Fujian 350108 China ,grid.411604.60000 0001 0130 6528College of Biological Science and Engineering, Fuzhou University, Fuzhou, Fujian 350108 China
| | - Shaoyun Wang
- grid.411604.60000 0001 0130 6528College of Biological Science and Engineering, Fuzhou University, Fuzhou, Fujian 350108 China
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Greve JM, Cowan JA. Activity and Synergy of Cu-ATCUN Antimicrobial Peptides. Int J Mol Sci 2022; 23:ijms232214151. [PMID: 36430622 PMCID: PMC9692552 DOI: 10.3390/ijms232214151] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2022] [Revised: 11/08/2022] [Accepted: 11/11/2022] [Indexed: 11/19/2022] Open
Abstract
Antibiotic resistance demands innovative strategies and therapies. The pairs of antimicrobial peptides tested in this work show broad-spectrum synergy and are capable of interacting with diverse bacterial membranes. In most cases, the ATCUN motif enhanced the activity of peptides tested in combination. Our studies also show CP10A to be a multifaceted peptide, displaying both cell membrane and intracellular activity and acting as a chameleon, improving the activity of other peptides as needed. The results of the synergy experiments demonstrate the importance of varied modes of action and how these changes can affect the ability to combat pathogens, while also illustrating the value of the metal-binding domain in enhancing the activity of antimicrobial peptides in combination.
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Chen X, Han J, Cai X, Wang S. Antimicrobial peptides: Sustainable application informed by evolutionary constraints. Biotechnol Adv 2022; 60:108012. [PMID: 35752270 DOI: 10.1016/j.biotechadv.2022.108012] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2022] [Revised: 06/02/2022] [Accepted: 06/19/2022] [Indexed: 01/10/2023]
Abstract
The proliferation and global expansion of multidrug-resistant (MDR) bacteria have deepened the need to develop novel antimicrobials. Antimicrobial peptides (AMPs) are regarded as promising antibacterial agents because of their broad-spectrum antibacterial activity and multifaceted mechanisms of action with non-specific targets. However, if AMPs are to be applied sustainably, knowledge of how they induce resistance in pathogenic bacteria must be mastered to avoid repeating the traditional antibiotic resistance mistakes currently faced. Furthermore, the evolutionary constraints on the acquisition of AMP resistance by microorganisms in the natural environment, such as functional compatibility and fitness trade-offs, inform the translational application of AMPs. Consequently, the shortcut to achieve sustainable utilization of AMPs is to uncover the evolutionary constraints of bacteria on AMP resistance in nature and find the tricks to exploit these constraints, such as applying AMP cocktails to minimize the efficacy of selection for resistance or combining nanomaterials to maximize the costs of AMP resistance. Altogether, this review dissects the benefits, challenges, and opportunities of utilizing AMPs against disease-causing bacteria, and highlights the use of AMP cocktails or nanomaterials to proactively address potential AMP resistance crises in the future.
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Affiliation(s)
- Xuan Chen
- College of Chemical Engineering, Fuzhou University, Fuzhou, Fujian 350108, China; College of Biological Science and Engineering, Fuzhou University, Fuzhou, Fujian 350108, China
| | - Jinzhi Han
- College of Biological Science and Engineering, Fuzhou University, Fuzhou, Fujian 350108, China
| | - Xixi Cai
- College of Biological Science and Engineering, Fuzhou University, Fuzhou, Fujian 350108, China
| | - Shaoyun Wang
- College of Biological Science and Engineering, Fuzhou University, Fuzhou, Fujian 350108, China.
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32
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Liu G, Xia N, Tian L, Sun Z, Liu L. Progress in the Development of Biosensors Based on Peptide-Copper Coordination Interaction. BIOSENSORS 2022; 12:bios12100809. [PMID: 36290946 PMCID: PMC9599103 DOI: 10.3390/bios12100809] [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: 08/27/2022] [Revised: 09/21/2022] [Accepted: 09/27/2022] [Indexed: 05/17/2023]
Abstract
Copper ions, as the active centers of natural enzymes, play an important role in many physiological processes. Copper ion-based catalysts which mimic the activity of enzymes have been widely used in the field of industrial catalysis and sensing devices. As an important class of small biological molecules, peptides have the advantages of easy synthesis, excellent biocompatibility, low toxicity, and good water solubility. The peptide-copper complexes exhibit the characteristics of low molecular weight, high tenability, and unique catalytic and photophysical properties. Biosensors with peptide-copper complexes as the signal probes have promising application prospects in environmental monitoring and biomedical analysis and diagnosis. In this review, we discussed the design and application of fluorescent, colorimetric and electrochemical biosensors based on the peptide-copper coordination interaction.
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Affiliation(s)
- Gang Liu
- College of Chemistry and Chemical Engineering, Anyang Normal University, Anyang 455000, China
- College of Chemistry and Chemical Engineering, Henan University of Technology, Zhengzhou 450052, China
| | - Ning Xia
- College of Chemistry and Chemical Engineering, Anyang Normal University, Anyang 455000, China
- Correspondence: (N.X.); (L.L.)
| | - Linxu Tian
- College of Chemistry and Chemical Engineering, Anyang Normal University, Anyang 455000, China
| | - Zhifang Sun
- College of Chemistry and Chemical Engineering, Anyang Normal University, Anyang 455000, China
| | - Lin Liu
- College of Chemistry and Chemical Engineering, Anyang Normal University, Anyang 455000, China
- Correspondence: (N.X.); (L.L.)
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Why the Ala-His-His Peptide Is an Appropriate Scaffold to Remove and Redox Silence Copper Ions from the Alzheimer’s-Related Aβ Peptide. Biomolecules 2022; 12:biom12101327. [PMID: 36291536 PMCID: PMC9599918 DOI: 10.3390/biom12101327] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2022] [Revised: 09/09/2022] [Accepted: 09/13/2022] [Indexed: 11/17/2022] Open
Abstract
The progressive, neurodegenerative Alzheimer’s disease (AD) is the most widespread dementia. Due to the ageing of the population and the current lack of molecules able to prevent or stop the disease, AD will be even more impactful for society in the future. AD is a multifactorial disease, and, among other factors, metal ions have been regarded as potential therapeutic targets. This is the case for the redox-competent Cu ions involved in the production of reactive oxygen species (ROS) when bound to the Alzheimer-related Aβ peptide, a process that contributes to the overall oxidative stress and inflammation observed in AD. Here, we made use of peptide ligands to stop the Cu(Aβ)-induced ROS production and we showed why the AHH sequence is fully appropriate, while the two parents, AH and AAH, are not. The AHH peptide keeps its beneficial ability against Cu(Aβ)-induced ROS, even in the presence of ZnII-competing ions and other biologically relevant ions. The detailed kinetic mechanism by which AHH could exert its action against Cu(Aβ)-induced ROS is also proposed.
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Fu J, Wang S, Li Z, Qin W, Tong Q, Liu C, Wang Z, Liu Z, Xu X. Comprehensive multiomics analysis of cuproptosis-related gene characteristics in hepatocellular carcinoma. Front Genet 2022; 13:942387. [PMID: 36147507 PMCID: PMC9486098 DOI: 10.3389/fgene.2022.942387] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2022] [Accepted: 08/19/2022] [Indexed: 12/12/2022] Open
Abstract
Background: The mechanism of copper-induced cell death, which is called cuproptosis, has recently been clarified. However, the integrated role of cuproptosis-related genes in hepatocellular carcinoma (HCC) and its relationship with immune characteristics are still completely unknown. Methods: In this study, the expression, genetic, and transcriptional regulation states of 16 cuproptosis-related genes in HCC were systematically investigated. An unsupervised clustering method was used to identify distinct expression patterns in 370 HCC patients from the TCGA-HCC cohort. Differences in functional characteristics among different expression clusters were clarified by gene set variation analysis (GSVA). The abundances of immune cells in each HCC sample were calculated by the CIBERSORT algorithm. Next, a cuproptosis-related risk score was established based on the significant differentially expressed genes (DEGs) among different expression clusters. Results: A specific cluster of HCC patients with poor prognosis, an inhibitory immune microenvironment, and high expression levels of immune checkpoint molecules was identified based on the expression of the 16 cuproptosis-related genes. This cluster of patients could be well-identified by a cuproptosis-related risk score system. The prognostic value of this risk score was validated in the training and two validation cohorts (TCGA-HCC, China-HCC, and Japan-HCC cohorts). Moreover, the overall expression status of the cuproptosis-related genes and the genes used to establish the cuproptosis-related risk score in specific cell types of the tumor microenvironment were preliminarily clarified by single-cell RNA (scRNA) sequencing data. Conclusion: These results indicated that cuproptosis-related genes play an important role in HCC, and targeting these genes may ameliorate the inhibitory immune microenvironment to improve the efficacy of immunotherapy with immune checkpoint inhibitors (ICIs).
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Affiliation(s)
- Jie Fu
- Department of General Surgery, The Second Xiangya Hospital of Central South University, Changsha, China
| | - Sixue Wang
- Department of Obstetrics and Gynecology, The Second Xiangya Hospital of Central South University, Changsha, China
| | - Zhenghao Li
- Department of General Surgery, The Second Xiangya Hospital of Central South University, Changsha, China
| | - Wei Qin
- Department of General Surgery, The Second Xiangya Hospital of Central South University, Changsha, China
| | - Qing Tong
- Department of General Surgery, The Second Xiangya Hospital of Central South University, Changsha, China
| | - Chun Liu
- Department of General Surgery, The Second Xiangya Hospital of Central South University, Changsha, China
| | - Zicheng Wang
- Department of General Surgery, The Second Xiangya Hospital of Central South University, Changsha, China
| | - Zhiqiang Liu
- Department of General Surgery, The Second Xiangya Hospital of Central South University, Changsha, China
| | - Xundi Xu
- Department of General Surgery, The Second Xiangya Hospital of Central South University, Changsha, China
- Department of General Surgery, South China Hospital of Shenzhen University, Shenzhen, China
- *Correspondence: Xundi Xu,
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35
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Cardoso MH, Chan LY, Cândido ES, Buccini DF, Rezende SB, Torres MDT, Oshiro KGN, Silva ÍC, Gonçalves S, Lu TK, Santos NC, de la Fuente-Nunez C, Craik DJ, Franco OL. An N-capping asparagine-lysine-proline (NKP) motif contributes to a hybrid flexible/stable multifunctional peptide scaffold. Chem Sci 2022; 13:9410-9424. [PMID: 36093022 PMCID: PMC9383710 DOI: 10.1039/d1sc06998e] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2021] [Accepted: 07/10/2022] [Indexed: 11/21/2022] Open
Abstract
Structural diversity drives multiple biological activities and mechanisms of action in linear peptides. Here we describe an unusual N-capping asparagine-lysine-proline (NKP) motif that confers a hybrid multifunctional scaffold to a computationally designed peptide (PaDBS1R7). PaDBS1R7 has a shorter α-helix segment than other computationally designed peptides of similar sequence but with key residue substitutions. Although this motif acts as an α-helix breaker in PaDBS1R7, the Asn5 presents exclusive N-capping effects, forming a belt to establish hydrogen bonds for an amphipathic α-helix stabilization. The combination of these different structural profiles was described as a coil/N-cap/α-helix scaffold, which was also observed in diverse computational peptide mutants. Biological studies revealed that all peptides displayed antibacterial activities. However, only PaDBS1R7 displayed anticancer properties, eradicated Pseudomonas aeruginosa biofilms, decreased bacterial counts by 100-1000-fold in vivo, reduced lipopolysaccharide-induced macrophages stress, and stimulated fibroblast migration for wound healing. This study extends our understanding of an N-capping NKP motif to engineering hybrid multifunctional peptide drug candidates with potent anti-infective and immunomodulatory properties.
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Affiliation(s)
- Marlon H Cardoso
- S-Inova Biotech, Programa de Pós-Graduação em Biotecnologia, Universidade Católica Dom Bosco Avenida Tamandaré 6000 Campo Grande - MS 79117900 Brazil
- Centro de Análises Proteômicas e Bioquímicas, Programa de Pós-Graduação em Ciências Genômicas e Biotecnologia, Universidade Católica de Brasília SGAN 916 Módulo B, Asa Norte, Brasília - DF 70790160 Brazil
- Programa de Pós-Graduação em Patologia Molecular, Faculdade de Medicina, Universidade de Brasília, Campus Darcy Ribeiro Asa Norte Brasília - DF 70910900 Brazil
- Instituto de Biociências (INBIO), Universidade Federal de Mato Grosso do Sul, Cidade Universitária 79070900 Campo Grande Mato Grosso do Sul Brazil
| | - Lai Y Chan
- Institute for Molecular Bioscience, Australian Research Council Centre of Excellence for Innovations in Peptide and Protein Science, The University of Queensland Brisbane QLD, 4072 Australia
| | - Elizabete S Cândido
- S-Inova Biotech, Programa de Pós-Graduação em Biotecnologia, Universidade Católica Dom Bosco Avenida Tamandaré 6000 Campo Grande - MS 79117900 Brazil
- Centro de Análises Proteômicas e Bioquímicas, Programa de Pós-Graduação em Ciências Genômicas e Biotecnologia, Universidade Católica de Brasília SGAN 916 Módulo B, Asa Norte, Brasília - DF 70790160 Brazil
| | - Danieli F Buccini
- S-Inova Biotech, Programa de Pós-Graduação em Biotecnologia, Universidade Católica Dom Bosco Avenida Tamandaré 6000 Campo Grande - MS 79117900 Brazil
| | - Samilla B Rezende
- S-Inova Biotech, Programa de Pós-Graduação em Biotecnologia, Universidade Católica Dom Bosco Avenida Tamandaré 6000 Campo Grande - MS 79117900 Brazil
| | - Marcelo D T Torres
- Machine Biology Group, Departments of Psychiatry and Microbiology, Institute for Biomedical Informatics, Institute for Translational Medicine and Therapeutics, Perelman School of Medicine, Departments of Bioengineering and Chemical and Biomolecular Engineering, School of Engineering and Applied Science, Penn Institute for Computational Science, University of Pennsylvania Philadelphia Pennsylvania USA
| | - Karen G N Oshiro
- S-Inova Biotech, Programa de Pós-Graduação em Biotecnologia, Universidade Católica Dom Bosco Avenida Tamandaré 6000 Campo Grande - MS 79117900 Brazil
- Programa de Pós-Graduação em Patologia Molecular, Faculdade de Medicina, Universidade de Brasília, Campus Darcy Ribeiro Asa Norte Brasília - DF 70910900 Brazil
| | - Ítala C Silva
- Instituto de Medicina Molecular, Faculdade de Medicina, Universidade de Lisboa Lisbon Portugal
| | - Sónia Gonçalves
- Instituto de Medicina Molecular, Faculdade de Medicina, Universidade de Lisboa Lisbon Portugal
| | - Timothy K Lu
- Synthetic Biology Group, MIT Synthetic Biology Center, The Center for Microbiome Informatics and Therapeutics, Research Laboratory of Electronics, Department of Biological Engineering, Department of Electrical Engineering and Computer Science, Massachusetts Institute of Technology Cambridge - MA 02139 USA
| | - Nuno C Santos
- Instituto de Medicina Molecular, Faculdade de Medicina, Universidade de Lisboa Lisbon Portugal
| | - Cesar de la Fuente-Nunez
- Machine Biology Group, Departments of Psychiatry and Microbiology, Institute for Biomedical Informatics, Institute for Translational Medicine and Therapeutics, Perelman School of Medicine, Departments of Bioengineering and Chemical and Biomolecular Engineering, School of Engineering and Applied Science, Penn Institute for Computational Science, University of Pennsylvania Philadelphia Pennsylvania USA
| | - David J Craik
- Institute for Molecular Bioscience, Australian Research Council Centre of Excellence for Innovations in Peptide and Protein Science, The University of Queensland Brisbane QLD, 4072 Australia
| | - Octávio L Franco
- S-Inova Biotech, Programa de Pós-Graduação em Biotecnologia, Universidade Católica Dom Bosco Avenida Tamandaré 6000 Campo Grande - MS 79117900 Brazil
- Centro de Análises Proteômicas e Bioquímicas, Programa de Pós-Graduação em Ciências Genômicas e Biotecnologia, Universidade Católica de Brasília SGAN 916 Módulo B, Asa Norte, Brasília - DF 70790160 Brazil
- Programa de Pós-Graduação em Patologia Molecular, Faculdade de Medicina, Universidade de Brasília, Campus Darcy Ribeiro Asa Norte Brasília - DF 70910900 Brazil
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36
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Fluorescent Immunoassay with a Copper Polymer as the Signal Label for Catalytic Oxidation of O-Phenylenediamine. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27123675. [PMID: 35744801 PMCID: PMC9229616 DOI: 10.3390/molecules27123675] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/10/2022] [Revised: 06/02/2022] [Accepted: 06/02/2022] [Indexed: 01/08/2023]
Abstract
This work suggested that Cu2+ ion coordinated by the peptide with a histidine (His or H) residue in the first position from the free N-terminal reveals oxidase-mimicking activity. A biotinylated polymer was prepared by modifying His residues on the side chain amino groups of lysine residues (denoted as KH) to chelate multiple Cu2+ ions. The resulting biotin-poly-(KH-Cu)20 polymer with multiple catalytic sites was employed as the signal label for immunoassay. Prostate specific antigen (PSA) was determined as the model target. The captured biotin-poly-(KH-Cu)20 polymer could catalyze the oxidation of o-phenylenediamine (OPD) to produce fluorescent 2,3-diaminophenazine (OPDox). The signal was proportional to PSA concentration from 0.01 to 2 ng/mL, and the detection limit was found to be eight pg/mL. The high sensitivity of the method enabled the assays of PSA in real serum samples. The work should be valuable for the design of novel biosensors for clinical diagnosis.
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37
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Greve JM, Cowan JA. Tackling antimicrobial stewardship through synergy and antimicrobial peptides. RSC Med Chem 2022; 13:511-521. [PMID: 35694695 PMCID: PMC9132191 DOI: 10.1039/d2md00048b] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2022] [Accepted: 04/04/2022] [Indexed: 11/21/2022] Open
Abstract
The unrestricted use of antibiotics has led to rapid development of antibiotic resistance (AR) and renewed calls to address this serious problem. This review summarizes the most common mechanisms of antibiotic action, and in turn antibiotic resistance, as well as pathways to mitigate the harm. Focus is then turned to emerging antibiotic strategies, including antimicrobial peptides (AMPs), with a discussion of their modes of action, biochemical features, and potential challenges for their use as antibiotics. The role of synergy in antimicrobials is also examined, with a focus on the synergy of AMPs and other emerging interactions with synergistic potential.
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Affiliation(s)
- Jenna M Greve
- Department of Chemistry and Biochemistry, The Ohio State University 100 West 18th Avenue Columbus Ohio 43210 USA +1 614 292 2703
| | - James A Cowan
- Department of Chemistry and Biochemistry, The Ohio State University 100 West 18th Avenue Columbus Ohio 43210 USA +1 614 292 2703
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38
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Feng Y, Liu G, Zhang F, Liu J, La M, Xia N. A General, Label-Free and Homogeneous Electrochemical Strategy for Probing of Protease Activity and Screening of Inhibitor. MICROMACHINES 2022; 13:mi13050803. [PMID: 35630268 PMCID: PMC9148143 DOI: 10.3390/mi13050803] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/26/2022] [Revised: 05/18/2022] [Accepted: 05/19/2022] [Indexed: 02/01/2023]
Abstract
Proteases play a critical role in regulating various physiological processes from protein digestion to wound healing. Monitoring the activity of proteases and screening their inhibitors as potential drug molecules are of great importance for the early diagnosis and treatment of many diseases. In this work, we reported a general, label-free and homogeneous electrochemical method for monitoring protease activity based on the peptide–copper interaction. Cleavage of peptide substrate results in the generation of a copper-binding chelator peptide with a histidine residue in the first or third position (His1 or His3) at the N-terminal. The redox potential and current of copper coordinated with the product are different from the free copper or the copper complex with the substrate, thus allowing for the detection of protease activity. Angiotensin-converting enzyme (ACE) and thrombin were determined as the model analytes. The label-free and homogeneous electrochemical method can be used for screening protease inhibitors with high simplicity and sensitivity.
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Affiliation(s)
- Yunxiao Feng
- College of Chemistry and Chemical Engineering, Pingdingshan University, Pingdingshan 467000, China;
| | - Gang Liu
- College of Chemistry and Chemical Engineering, Henan University of Technology, Zhengzhou 450001, China;
- College of Chemistry and Chemical Engineering, Anyang Normal University, Anyang 455000, China; (F.Z.); (J.L.)
| | - Fan Zhang
- College of Chemistry and Chemical Engineering, Anyang Normal University, Anyang 455000, China; (F.Z.); (J.L.)
| | - Jianwen Liu
- College of Chemistry and Chemical Engineering, Anyang Normal University, Anyang 455000, China; (F.Z.); (J.L.)
| | - Ming La
- College of Chemistry and Chemical Engineering, Pingdingshan University, Pingdingshan 467000, China;
- Correspondence: (M.L.); (N.X.)
| | - Ning Xia
- College of Chemistry and Chemical Engineering, Anyang Normal University, Anyang 455000, China; (F.Z.); (J.L.)
- Correspondence: (M.L.); (N.X.)
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39
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Zhang RZ, Huang W, Zhang RX, Xu C, Wang M. Synthesis of N-CF 3 Amidines/Imidates/Thioimidates via N-CF 3 Nitrilium Ions. Org Lett 2022; 24:2393-2398. [PMID: 35302381 DOI: 10.1021/acs.orglett.2c00647] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
An efficient methodology for the synthesis of a wide range of N-CF3 imidic acid derivatives is presented. In this reaction, N-CF3 nitrilium ions were generated via N-trifluoromethylation of nitriles using PhICF3Cl under catalysis with DMAP, followed by the capture of N-, O-, or S-centered nucleophiles to give diverse N-CF3 amidines, imidates, and thioimidates. The method provides a platform for preparing N-CF3 compounds with potential applications.
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Affiliation(s)
- Ru Zhong Zhang
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, College of Chemistry, Northeast Normal University, Changchun 130024, China
| | - Wanqiao Huang
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, College of Chemistry, Northeast Normal University, Changchun 130024, China
| | - Ru Xue Zhang
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, College of Chemistry, Northeast Normal University, Changchun 130024, China
| | - Cong Xu
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, College of Chemistry, Northeast Normal University, Changchun 130024, China
| | - Mang Wang
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, College of Chemistry, Northeast Normal University, Changchun 130024, China
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40
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Hrdina A, Iatsenko I. The roles of metals in insect-microbe interactions and immunity. CURRENT OPINION IN INSECT SCIENCE 2022; 49:71-77. [PMID: 34952239 DOI: 10.1016/j.cois.2021.12.004] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/29/2021] [Revised: 12/12/2021] [Accepted: 12/12/2021] [Indexed: 06/14/2023]
Abstract
Metal ions play essential roles in diverse physiological processes in insects, including immunity and interactions with microbes. Some, like iron, are essential nutrients and therefore are the subject of a tug-of-war between insects and microbes. Recent findings showed that the hypoferremic response mediated by Transferrin 1 is an essential defense mechanism against pathogens in insects. Transferrin 1 and the overall iron metabolism were also implicated in mediating interactions between insects and beneficial microbes. Other metals, like copper and zinc, can interfere with insect immune effectors, and either enhance (antimicrobial peptides) or reduce (reactive oxygen species) their activity. By covering recent advances in the field, this review emphasizes the importance of metals as essential mediators of insect-microbe interactions.
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Affiliation(s)
- Alexandra Hrdina
- Max Planck Institute for Infection Biology, Charitéplatz 1, Berlin, 10117, Germany
| | - Igor Iatsenko
- Max Planck Institute for Infection Biology, Charitéplatz 1, Berlin, 10117, Germany.
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41
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Si Z, Zheng W, Prananty D, Li J, Koh CH, Kang ET, Pethe K, Chan-Park MB. Polymers as advanced antibacterial and antibiofilm agents for direct and combination therapies. Chem Sci 2022; 13:345-364. [PMID: 35126968 PMCID: PMC8729810 DOI: 10.1039/d1sc05835e] [Citation(s) in RCA: 45] [Impact Index Per Article: 22.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2021] [Accepted: 12/12/2021] [Indexed: 12/13/2022] Open
Abstract
The growing prevalence of antimicrobial drug resistance in pathogenic bacteria is a critical threat to global health. Conventional antibiotics still play a crucial role in treating bacterial infections, but the emergence and spread of antibiotic-resistant micro-organisms are rapidly eroding their usefulness. Cationic polymers, which target bacterial membranes, are thought to be the last frontier in antibacterial development. This class of molecules possesses several advantages including a low propensity for emergence of resistance and rapid bactericidal effect. This review surveys the structure-activity of advanced antimicrobial cationic polymers, including poly(α-amino acids), β-peptides, polycarbonates, star polymers and main-chain cationic polymers, with low toxicity and high selectivity to potentially become useful for real applications. Their uses as potentiating adjuvants to overcome bacterial membrane-related resistance mechanisms and as antibiofilm agents are also covered. The review is intended to provide valuable information for design and development of cationic polymers as antimicrobial and antibiofilm agents for translational applications.
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Affiliation(s)
- Zhangyong Si
- School of Chemical and Biomedical Engineering, Nanyang Technological University Singapore 637459 Singapore
| | - Wenbin Zheng
- School of Chemical and Biomedical Engineering, Nanyang Technological University Singapore 637459 Singapore
| | - Dicky Prananty
- School of Chemical and Biomedical Engineering, Nanyang Technological University Singapore 637459 Singapore
| | - Jianghua Li
- School of Chemical and Biomedical Engineering, Nanyang Technological University Singapore 637459 Singapore
| | - Chong Hui Koh
- School of Chemical and Biomedical Engineering, Nanyang Technological University Singapore 637459 Singapore
| | - En-Tang Kang
- Department of Chemical & Biomolecular Engineering, National University of Singapore 4 Engineering Drive 4, Kent Ridge Singapore 117585 Singapore
| | - Kevin Pethe
- Lee Kong Chian School of Medicine, Nanyang Technological University Singapore 636921 Singapore
- School of Biological Sciences, Nanyang Technological University Singapore 637551 Singapore
| | - Mary B Chan-Park
- School of Chemical and Biomedical Engineering, Nanyang Technological University Singapore 637459 Singapore
- Lee Kong Chian School of Medicine, Nanyang Technological University Singapore 636921 Singapore
- School of Physical & Mathematical Sciences, Nanyang Technological University Singapore 637371 Singapore
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42
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Liang J, Wang J, Shen X, Lu B, Li G, Wang H, Wang H, Yuan L. A Novel Antibacterial Gold Nanoparticles Layer with Self-Cleaning Ability by the Production of Oxygen Bubbles. J Mater Chem B 2022; 10:4203-4215. [DOI: 10.1039/d2tb00258b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Bacterial contamination of medical devices not only constitutes a serious threat to the health of patients, but also promotes the evolution of bacterial drug-resistance. Here, a new strategy to fabricate...
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Janicka-Kłos A, Czapor-Irzabek H, Janek T. The Potential Antimicrobial Action of Human Mucin 7 15-Mer Peptide and Its Metal Complexes. Int J Mol Sci 2021; 23:ijms23010418. [PMID: 35008844 PMCID: PMC8745124 DOI: 10.3390/ijms23010418] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2021] [Revised: 12/27/2021] [Accepted: 12/28/2021] [Indexed: 12/26/2022] Open
Abstract
Mucin 7 (encoded byMUC7) is a human salivary protein that has a role in the natural immune system. Fragments of mucin 7 exhibit antimicrobial activity against bacteria and yeast. Although the antimicrobial properties of peptides have been known and studied for decades, the exact mechanism of action of antimicrobial peptides (AMPs) is still unclear. It is known that some AMPs require divalent metal ions to activate their activity. Herein, we investigated three 15-mer MUC7 peptides, one of which (mother peptide, sequence, L3) is a synthetic analog of a fragment naturally excised from MUC7 (with His3, His8, and His 14) and its two structural analogs, containing only two histidine residues, His3, His13 and His8, His13 (L2 and L1, respectively). Since there is a correlation between lipophilicity, the presence of metal ions (such as Cu(II) and Zn(II)) and antimicrobial activity of AMP, antimicrobial properties of the studied peptides, as well as their complexes with Cu(II) and Zn(II) ions, were tested for activity against Gram-positive (Enterococcus faecalis, Staphylococcus epidermidis) and Gram-negative (Escherichia coli, Pseudomonas aeruginosa) bacteria and fungi (Candida albicans). The results were correlated with their lipophilicity. Coordination and thermodynamic studies (potentiometry, UV-Vis, CD) revealed the formation of mainly mononuclear complexes in solution for all studied systems with different stability in the physiological pH range.
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Affiliation(s)
- Anna Janicka-Kłos
- Department of Inorganic Chemistry, Wroclaw Medical University, Borowska 211A, 50-556 Wroclaw, Poland
- Correspondence:
| | - Hanna Czapor-Irzabek
- Laboratory of Elemental Analysts and Structural Research, Wroclaw Medical University, Borowska 211A, 50-556 Wroclaw, Poland;
| | - Tomasz Janek
- Department of Biotechnology and Food Microbiology, Wroclaw University of Environmental and Life Sciences, 51-630 Wroclaw, Poland;
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Salcedo-Sora JE, Robison ATR, Zaengle-Barone J, Franz KJ, Kell DB. Membrane Transporters Involved in the Antimicrobial Activities of Pyrithione in Escherichia coli. Molecules 2021; 26:molecules26195826. [PMID: 34641370 PMCID: PMC8510280 DOI: 10.3390/molecules26195826] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2021] [Revised: 09/16/2021] [Accepted: 09/20/2021] [Indexed: 02/06/2023] Open
Abstract
Pyrithione (2-mercaptopyridine-N-oxide) is a metal binding modified pyridine, the antibacterial activity of which was described over 60 years ago. The formulation of zinc-pyrithione is commonly used in the topical treatment of certain dermatological conditions. However, the characterisation of the cellular uptake of pyrithione has not been elucidated, although an unsubstantiated assumption has persisted that pyrithione and/or its metal complexes undergo a passive diffusion through cell membranes. Here, we have profiled specific membrane transporters from an unbiased interrogation of 532 E. coli strains of knockouts of genes encoding membrane proteins from the Keio collection. Two membrane transporters, FepC and MetQ, seemed involved in the uptake of pyrithione and its cognate metal complexes with copper, iron, and zinc. Additionally, the phenotypes displayed by CopA and ZntA knockouts suggested that these two metal effluxers drive the extrusion from the bacterial cell of potentially toxic levels of copper, and perhaps zinc, which hyperaccumulate as a function of pyrithione. The involvement of these distinct membrane transporters contributes to the understanding of the mechanisms of action of pyrithione specifically and highlights, more generally, the important role that membrane transporters play in facilitating the uptake of drugs, including metal-drug compounds.
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Affiliation(s)
- Jesus Enrique Salcedo-Sora
- Department of Biochemistry and Systems Biology, Institute of Systems, Molecular and Integrative Biology, University of Liverpool, Crown St., Liverpool L69 7ZB, UK
- Correspondence: (J.E.S.-S.); (K.J.F.); (D.B.K.)
| | - Amy T. R. Robison
- Department of Chemistry, Duke University, 124 Science Drive, Durham, NC 27708, USA; (A.T.R.R.); (J.Z.-B.)
| | - Jacqueline Zaengle-Barone
- Department of Chemistry, Duke University, 124 Science Drive, Durham, NC 27708, USA; (A.T.R.R.); (J.Z.-B.)
| | - Katherine J. Franz
- Department of Chemistry, Duke University, 124 Science Drive, Durham, NC 27708, USA; (A.T.R.R.); (J.Z.-B.)
- Correspondence: (J.E.S.-S.); (K.J.F.); (D.B.K.)
| | - Douglas B. Kell
- Department of Biochemistry and Systems Biology, Institute of Systems, Molecular and Integrative Biology, University of Liverpool, Crown St., Liverpool L69 7ZB, UK
- Novo Nordisk Foundation Centre for Biosustainability, Technical University of Denmark, Building 220, Kemitorvet, 2800 Kgs Lyngby, Denmark
- Correspondence: (J.E.S.-S.); (K.J.F.); (D.B.K.)
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Cao XY, Pang CM, Xiao Y, Xiao WQ, Luo SH, He JP, Wang ZY. Preparation of Large Conjugated Polybenzimidazole Fluorescent Materials and Their Application in Metal Ion Detection. Polymers (Basel) 2021; 13:polym13183091. [PMID: 34577993 PMCID: PMC8472194 DOI: 10.3390/polym13183091] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2021] [Revised: 09/06/2021] [Accepted: 09/10/2021] [Indexed: 01/19/2023] Open
Abstract
A new type of conjugated polybenzimidazole (CPBI) was synthesized through a simple polycondensation reaction without metal catalysis, and N-alkylation modification was carried out to solve the problems of solubility and fluorescence properties. A series of nano-microsphere polymers CPBIn with large conjugation, good solubility, and strong fluorescence has been successfully used as “turn-off” fluorescent probes for the first time. The results show that, under suitable N-alkylation conditions, the obtained CPBIn can be used as a highly sensitive and selective fluorescent probe for the detection of Cu2+ and Zn2+ at the same time, and their detection limits are both nM levels. In addition, CPBI2 can be designed as an ultra-sensitive IMPLICATION logic gate at the molecular level, cyclically detecting Cu2+. With the test paper containing CPBI2, easy and quick on-site detection can be achieved. This research provides a new idea for the brief synthesis of multifunctional materials.
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Affiliation(s)
- Xi-Ying Cao
- School of Chemistry, South China Normal University, Key Laboratory of Theoretical Chemistry of Environment, Ministry of Education; Guangzhou Key Laboratory of Analytical Chemistry for Biomedicine, Guangzhou 510006, China; (X.-Y.C.); (Y.X.); (W.-Q.X.); (J.-P.H.)
| | - Chu-Ming Pang
- School of Chemistry, South China Normal University, Key Laboratory of Theoretical Chemistry of Environment, Ministry of Education; Guangzhou Key Laboratory of Analytical Chemistry for Biomedicine, Guangzhou 510006, China; (X.-Y.C.); (Y.X.); (W.-Q.X.); (J.-P.H.)
- School of Health Medicine, Guangzhou Huashang College, Guangzhou 511300, China
- Correspondence: (C.-M.P.); (S.-H.L.); (Z.-Y.W)
| | - Ying Xiao
- School of Chemistry, South China Normal University, Key Laboratory of Theoretical Chemistry of Environment, Ministry of Education; Guangzhou Key Laboratory of Analytical Chemistry for Biomedicine, Guangzhou 510006, China; (X.-Y.C.); (Y.X.); (W.-Q.X.); (J.-P.H.)
| | - Wan-Qing Xiao
- School of Chemistry, South China Normal University, Key Laboratory of Theoretical Chemistry of Environment, Ministry of Education; Guangzhou Key Laboratory of Analytical Chemistry for Biomedicine, Guangzhou 510006, China; (X.-Y.C.); (Y.X.); (W.-Q.X.); (J.-P.H.)
| | - Shi-He Luo
- School of Chemistry, South China Normal University, Key Laboratory of Theoretical Chemistry of Environment, Ministry of Education; Guangzhou Key Laboratory of Analytical Chemistry for Biomedicine, Guangzhou 510006, China; (X.-Y.C.); (Y.X.); (W.-Q.X.); (J.-P.H.)
- Correspondence: (C.-M.P.); (S.-H.L.); (Z.-Y.W)
| | - Jin-Ping He
- School of Chemistry, South China Normal University, Key Laboratory of Theoretical Chemistry of Environment, Ministry of Education; Guangzhou Key Laboratory of Analytical Chemistry for Biomedicine, Guangzhou 510006, China; (X.-Y.C.); (Y.X.); (W.-Q.X.); (J.-P.H.)
| | - Zhao-Yang Wang
- School of Chemistry, South China Normal University, Key Laboratory of Theoretical Chemistry of Environment, Ministry of Education; Guangzhou Key Laboratory of Analytical Chemistry for Biomedicine, Guangzhou 510006, China; (X.-Y.C.); (Y.X.); (W.-Q.X.); (J.-P.H.)
- Correspondence: (C.-M.P.); (S.-H.L.); (Z.-Y.W)
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Zhang QY, Yan ZB, Meng YM, Hong XY, Shao G, Ma JJ, Cheng XR, Liu J, Kang J, Fu CY. Antimicrobial peptides: mechanism of action, activity and clinical potential. Mil Med Res 2021; 8:48. [PMID: 34496967 PMCID: PMC8425997 DOI: 10.1186/s40779-021-00343-2] [Citation(s) in RCA: 181] [Impact Index Per Article: 60.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/04/2021] [Accepted: 08/30/2021] [Indexed: 12/15/2022] Open
Abstract
The management of bacterial infections is becoming a major clinical challenge due to the rapid evolution of antibiotic resistant bacteria. As an excellent candidate to overcome antibiotic resistance, antimicrobial peptides (AMPs) that are produced from the synthetic and natural sources demonstrate a broad-spectrum antimicrobial activity with the high specificity and low toxicity. These peptides possess distinctive structures and functions by employing sophisticated mechanisms of action. This comprehensive review provides a broad overview of AMPs from the origin, structural characteristics, mechanisms of action, biological activities to clinical applications. We finally discuss the strategies to optimize and develop AMP-based treatment as the potential antimicrobial and anticancer therapeutics.
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Affiliation(s)
- Qi-Yu Zhang
- Zhejiang Provincial Key Laboratory of Silkworm Bioreactor and Biomedicine, College of Life Sciences and Medicine, Zhejiang Sci-Tech University, No. 928, Street 2, Xiasha Higher Education Zone, Hangzhou, 310018, Zhejiang, China
| | - Zhi-Bin Yan
- Zhejiang Provincial Key Laboratory of Silkworm Bioreactor and Biomedicine, College of Life Sciences and Medicine, Zhejiang Sci-Tech University, No. 928, Street 2, Xiasha Higher Education Zone, Hangzhou, 310018, Zhejiang, China
| | - Yue-Ming Meng
- Zhejiang Provincial Key Laboratory of Silkworm Bioreactor and Biomedicine, College of Life Sciences and Medicine, Zhejiang Sci-Tech University, No. 928, Street 2, Xiasha Higher Education Zone, Hangzhou, 310018, Zhejiang, China
| | - Xiang-Yu Hong
- Zhejiang Provincial Key Laboratory of Silkworm Bioreactor and Biomedicine, College of Life Sciences and Medicine, Zhejiang Sci-Tech University, No. 928, Street 2, Xiasha Higher Education Zone, Hangzhou, 310018, Zhejiang, China
| | - Gang Shao
- Department of Oncology, The 903rd Hospital of PLA, Hangzhou, 310013, Zhejiang, China
| | - Jun-Jie Ma
- Zhejiang Provincial Key Laboratory of Silkworm Bioreactor and Biomedicine, College of Life Sciences and Medicine, Zhejiang Sci-Tech University, No. 928, Street 2, Xiasha Higher Education Zone, Hangzhou, 310018, Zhejiang, China
| | - Xu-Rui Cheng
- Zhejiang Provincial Key Laboratory of Silkworm Bioreactor and Biomedicine, College of Life Sciences and Medicine, Zhejiang Sci-Tech University, No. 928, Street 2, Xiasha Higher Education Zone, Hangzhou, 310018, Zhejiang, China
| | - Jun Liu
- Department of Pharmaceutical Chemistry and the Cardiovascular Research Institute, University of California San Francisco, 555 Mission Bay Blvd. South, San Francisco, CA, 94158, USA
| | - Jian Kang
- Oncogenic Signaling and Growth Control Program, Peter MacCallum Cancer Centre, 305 Grattan Street, Melbourne, VIC, 3000, Australia.,Sir Peter MacCallum Department of Oncology, University of Melbourne, Parkville, VIC, 3010, Australia
| | - Cai-Yun Fu
- Zhejiang Provincial Key Laboratory of Silkworm Bioreactor and Biomedicine, College of Life Sciences and Medicine, Zhejiang Sci-Tech University, No. 928, Street 2, Xiasha Higher Education Zone, Hangzhou, 310018, Zhejiang, China.
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Miller A, Matera-Witkiewicz A, Mikołajczyk A, Wieczorek R, Rowińska-Żyrek M. Chemical "Butterfly Effect" Explaining the Coordination Chemistry and Antimicrobial Properties of Clavanin Complexes. Inorg Chem 2021; 60:12730-12734. [PMID: 34382773 PMCID: PMC8424629 DOI: 10.1021/acs.inorgchem.1c02101] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Can a minor difference in the nonmetal binding sequence of antimicrobial clavanins explain the drastic change in the coordination environment and antimicrobial efficiency? This study answers the question with a definite "yes", showing the details of the bioinorganic chemistry of Zn(II) and Cu(II) complexes with clavanins, histidine-rich, antimicrobial peptides from hemocytes of the tunicate Styela clava.
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Affiliation(s)
- Adriana Miller
- Faculty of Chemistry, University of Wroclaw, F. Joliot-Curie 14, 50-383 Wroclaw, Poland
| | - Agnieszka Matera-Witkiewicz
- Screening Laboratory of Biological Activity Tests and Collection of Biological Material, Faculty of Pharmacy, Wroclaw Medical University, Borowska 211A, 50-556 Wroclaw, Poland
| | - Aleksandra Mikołajczyk
- Screening Laboratory of Biological Activity Tests and Collection of Biological Material, Faculty of Pharmacy, Wroclaw Medical University, Borowska 211A, 50-556 Wroclaw, Poland
| | - Robert Wieczorek
- Faculty of Chemistry, University of Wroclaw, F. Joliot-Curie 14, 50-383 Wroclaw, Poland
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48
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Fu R, Rooney MT, Zhang R, Cotten ML. Coordination of Redox Ions within a Membrane-Binding Peptide: A Tale of Aromatic Rings. J Phys Chem Lett 2021; 12:4392-4399. [PMID: 33939920 DOI: 10.1021/acs.jpclett.1c00636] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
The amino-terminal-copper-and-nickel-binding (ATCUN) motif, a tripeptide sequence ending with a histidine, confers important functions to proteins and peptides. Few high-resolution studies have been performed on the ATCUN motifs of membrane-associated proteins and peptides, limiting our understanding of how they stabilize Cu2+/Ni2+ in membranes. Here, we leverage solid-state NMR to investigate metal-binding to piscidin-1 (P1), a host-defense peptide featuring F1F2H3 as its ATCUN motif. Bound to redox ions, P1 chemically and physically damages pathogenic cell membranes. We design 13C/15N correlation experiments to detect and assign the deprotonated nitrogens produced and/or shifted by Ni2+-binding. Occupying multiple chemical states in P1-apo, H3 and the neighboring H4 respond to metalation by populating only the τ-tautomer. H3, as a proximal histidine, directly coordinates the metal, compared to the distal H4. Density functional theory calculations reflect this noncanonical arrangement and point toward cation-π interactions between the F1/F2/H4 aromatic rings and metal. These structural findings, which are relevant to other ATCUN-containing membrane peptides, could help design new therapeutics and materials for use in the areas of drug-resistant bacteria, neurological disorders, and biomedical imaging.
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Affiliation(s)
- Riqiang Fu
- National High Magnetic Field Laboratory, 1800 East Paul Dirac Drive, Tallahassee, Florida 32310, United States
| | - Mary T Rooney
- Department of Applied Science, William & Mary, Williamsburg, Virginia 23185, United States
| | - Rongfu Zhang
- National High Magnetic Field Laboratory, 1800 East Paul Dirac Drive, Tallahassee, Florida 32310, United States
- Department of Chemistry and Biochemistry, Florida State University, Tallahassee, Florida 32306, United States
| | - Myriam L Cotten
- Department of Applied Science, William & Mary, Williamsburg, Virginia 23185, United States
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49
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Thompson Z, Greve JM, Cowan JA. Enhanced Synergism and Mechanism of Action Studies of Synthetic Antimicrobial Metallopeptides. ChemMedChem 2021; 16:2112-2120. [PMID: 33825350 DOI: 10.1002/cmdc.202100063] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2021] [Indexed: 11/08/2022]
Abstract
Antimicrobial peptides (AMPs) are found throughout most kingdoms of life, are an important part of host immunity, and have been shown to act synergistically in various organisms to ameliorate bacterial infections. Herein, we report the synergistic behavior observed between two AMPs, Sub5 and CP10A, against E. coli. In addition, enhanced synergistic activity against E. coli and MRSA 43300 for two derivatives of Sub5, extended with the amino-terminal copper and nickel (ATCUN) binding motif, is observed when dosed together with CP10A, while displaying little cytotoxicity towards human dermal fibroblasts. All three combinations of peptides co-localized within bacterial cells as evidenced by fluorescence confocal microscopy. Investigations into the mechanism of synergy shows that all peptides indirectly damage DNA within cells, while only the ATCUN derivatives can oxidize phospholipids. Combinations of peptides were also shown to upregulate the concentration of reactive oxygen species within both E. coli and MRSA 43300. These results suggest that the production of reactive oxygen species is an important aspect mechanistically and further highlights the potential of these metallopeptides to aid in the treatment of antibiotic-resistant infections.
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Affiliation(s)
- Zechariah Thompson
- Chemistry and Biochemistry, The Ohio State University, Evans Laboratory of Chemistry 100, West 18th Avenue, Columbus, Ohio, 43210, USA
| | - Jenna M Greve
- Chemistry and Biochemistry, The Ohio State University, Evans Laboratory of Chemistry 100, West 18th Avenue, Columbus, Ohio, 43210, USA
| | - James Allan Cowan
- Chemistry and Biochemistry, The Ohio State University, Evans Laboratory of Chemistry 100, West 18th Avenue, Columbus, Ohio, 43210, USA
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