1
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Jung N, Schommers P, Leisse C. [Precision medicine in infectious diseases]. INNERE MEDIZIN (HEIDELBERG, GERMANY) 2024; 65:220-227. [PMID: 38038764 DOI: 10.1007/s00108-023-01620-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 10/19/2023] [Indexed: 12/02/2023]
Abstract
Infectious medicine faces a variety of challenges, such as the increase in antibiotic resistance and the emergence and spread of infectious diseases fueled by climate change and globalization. Precision medicine can provide solutions to many of these challenges. Since an untargeted request for diagnostic tests can lead to test results without clinical relevance, which can increase the use of non-indicated antibiotics, the principle aimed at is: targeted diagnostics (the right test) and consideration of patient characteristics (the right person) to optimize management (the right action). At the same time, one must always decide whether empirical therapy must be immediately initiated, even if the results of the initiated diagnostics are not yet available. In addition, many new diagnostics as well as therapies have recently been developed for the rapid detection and more specific treatment of bacterial infections. Molecular genetic methods, which offer more rapid results than classical bacterial cultures, are gaining ground as new diagnostics. New therapeutics such as bacteriophages, antibodies or antibacterial peptides allow increasingly precise treatment of certain bacterial infections. Precision medicine will also play an increasingly important role in infectious medicine in the future.
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Affiliation(s)
- N Jung
- Universität zu Köln, Medizinische Fakultät und Uniklinik Köln, Klinik I für Innere Medizin, Infektiologie, Köln, Deutschland.
| | - P Schommers
- Universität zu Köln, Medizinische Fakultät und Uniklinik Köln, Klinik I für Innere Medizin, Infektiologie, Köln, Deutschland
| | - C Leisse
- Universität zu Köln, Medizinische Fakultät und Uniklinik Köln, Klinik I für Innere Medizin, Infektiologie, Köln, Deutschland
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2
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Cai J, Nielsen MW, Kalogeropoulos K, auf dem Keller U, van der Plas MJ. Peptidomic analysis of endogenous and bacterial protease activity in human plasma and wound fluids. iScience 2024; 27:109005. [PMID: 38333691 PMCID: PMC10850760 DOI: 10.1016/j.isci.2024.109005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2023] [Revised: 11/20/2023] [Accepted: 01/19/2024] [Indexed: 02/10/2024] Open
Abstract
Endogenous and bacterial proteases play important roles in wound healing and infection. Analysis of alterations in the low-molecular-weight peptidome by individual enzymes could therefore provide insight into proteolytic events occurring in wounds and may aid in the discovery of biomarkers. Using liquid chromatography with tandem mass spectrometry, we characterized the peptidome of plasma and acute wound fluids digested ex vivo with human (neutrophil elastase and cathepsin G) and bacterial proteases (Pseudomonas aeruginosa LasB and Staphyloccocus aureus V8). We identified over 100 protein targets for each enzyme and characterized enzyme specific peptides and cleavage patterns. Moreover, we found unique peptide regions in V8 digested samples that were also present in dressing extracts from S. aureus infected wounds. Finally, the work indicates that peptidomic analysis of qualitative differences of proteolytic activity of individual enzymes may aid in the discovery of potential diagnostic biomarkers for wound healing status.
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Affiliation(s)
- Jun Cai
- LEO Foundation Center for Cutaneous Drug Delivery, Department of Pharmacy, University of Copenhagen, 2100 Copenhagen Ø, Denmark
| | - Maike W. Nielsen
- Department of Biotechnology and Biomedicine, Technical University of Denmark, 2800 Kgs. Lyngby, Denmark
| | | | - Ulrich auf dem Keller
- Department of Biotechnology and Biomedicine, Technical University of Denmark, 2800 Kgs. Lyngby, Denmark
| | - Mariena J.A. van der Plas
- LEO Foundation Center for Cutaneous Drug Delivery, Department of Pharmacy, University of Copenhagen, 2100 Copenhagen Ø, Denmark
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3
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Petrlova J, Hartman E, Petruk G, Lim JCH, Adav SS, Kjellström S, Puthia M, Schmidtchen A. Selective protein aggregation confines and inhibits endotoxins in wounds: Linking host defense to amyloid formation. iScience 2023; 26:107951. [PMID: 37817942 PMCID: PMC10561040 DOI: 10.1016/j.isci.2023.107951] [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: 02/07/2023] [Revised: 07/24/2023] [Accepted: 09/14/2023] [Indexed: 10/12/2023] Open
Abstract
Bacterial lipopolysaccharide (LPS) induces rapid protein aggregation in human wound fluid. We aimed to characterize these LPS-induced aggregates and their functional implications using a combination of mass spectrometry analyses, biochemical assays, biological imaging, cell experiments, and animal models. The wound-fluid aggregates encompass diverse protein classes, including sequences from coagulation factors, annexins, histones, antimicrobial proteins/peptides, and apolipoproteins. We identified proteins and peptides with a high aggregation propensity and verified selected components through Western blot analysis. Thioflavin T and Amytracker staining revealed amyloid-like aggregates formed after exposure to LPS in vitro in human wound fluid and in vivo in porcine wound models. Using NF-κB-reporter mice and IVIS bioimaging, we demonstrate that such wound-fluid LPS aggregates induce a significant reduction in local inflammation compared with LPS in plasma. The results show that protein/peptide aggregation is a mechanism for confining LPS and reducing inflammation, further emphasizing the connection between host defense and amyloidogenesis.
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Affiliation(s)
- Jitka Petrlova
- Division of Dermatology and Venereology, Department of Clinical Sciences, Lund University, 22184 Lund, Sweden
| | - Erik Hartman
- Division of Dermatology and Venereology, Department of Clinical Sciences, Lund University, 22184 Lund, Sweden
| | - Ganna Petruk
- Division of Dermatology and Venereology, Department of Clinical Sciences, Lund University, 22184 Lund, Sweden
| | - Jeremy Chun Hwee Lim
- Division of Dermatology and Venereology, Department of Clinical Sciences, Lund University, 22184 Lund, Sweden
| | - Sunil Shankar Adav
- School of Materials Science and Engineering, Nanyang Technological University, Singapore, Singapore
| | - Sven Kjellström
- Department of Clinical Sciences, BioMS, Lund University, Lund, Sweden
| | - Manoj Puthia
- Division of Dermatology and Venereology, Department of Clinical Sciences, Lund University, 22184 Lund, Sweden
| | - Artur Schmidtchen
- Division of Dermatology and Venereology, Department of Clinical Sciences, Lund University, 22184 Lund, Sweden
- Dermatology, Skane University Hospital, 22185 Lund, Sweden
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Memariani H, Memariani M. Antibiofilm properties of cathelicidin LL-37: an in-depth review. World J Microbiol Biotechnol 2023; 39:99. [PMID: 36781570 DOI: 10.1007/s11274-023-03545-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2022] [Accepted: 02/08/2023] [Indexed: 02/15/2023]
Abstract
Notwithstanding ceaseless endeavors toward developing effective antibiofilm chemotherapeutics, biofilm-associated infections continue to be one of the most perplexing challenges confronting medicine today. Endogenous host defense peptides, such as the human cathelicidin LL-37, are being propounded as promising options for treating such infectious diseases. Over the past decennium, LL-37 has duly received tremendous research attention by virtue of its broad-spectrum antimicrobial activity and immunomodulatory properties. No attempt has hitherto been made, as far as we are aware, to comprehensively review the antibiofilm effects of LL-37. Accordingly, the intent in this paper is to provide a fairly all-embracing review of the literature available on the subject. Accumulating evidence suggests that LL-37 is able to prevent biofilm establishment by different bacterial pathogens such as Acinetobacter baumannii, Aggregatibacter actinomycetemcomitans, Bacteroides fragilis, Burkholderia thailandensis, Cutibacterium acnes, Escherichia coli, Francisella tularensis, Helicobacter pylori, Klebsiella pneumoniae, Pseudomonas aeruginosa, Staphylococcus aureus, and Streptococcus pyogenes. Inhibition of bacterial adhesion, downregulation of biofilm-associated genes, suppression of quorum-sensing pathways, degradation of biofilm matrix, and eradication of biofilm-residing cells are the major mechanisms responsible for antibiofilm properties of LL-37. In terms of its efficacy and safety in vivo, there are still many questions to be answered. Undoubtedly, LL-37 can open up new windows of opportunity to prevent and treat obstinate biofilm-mediated infections.
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Affiliation(s)
- Hamed Memariani
- Biotechnology Research Center, Pasteur Institute of Iran, Tehran, Iran
| | - Mojtaba Memariani
- Biotechnology Research Center, Pasteur Institute of Iran, Tehran, Iran.
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Antimicrobial Properties of a Peptide Derived from the Male Fertility Factor kl2 Protein of Drosophila melanogaster. Curr Issues Mol Biol 2022; 44:1169-1181. [PMID: 35723299 PMCID: PMC8947439 DOI: 10.3390/cimb44030076] [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: 01/01/2022] [Revised: 02/13/2022] [Accepted: 02/23/2022] [Indexed: 11/16/2022] Open
Abstract
Antimicrobial peptides (AMPs) are important components of innate immunity. Here, we report the antimicrobial properties of a peptide derived from the Male fertility factor kl2 (MFF-kl2) protein of Drosophila melanogaster, which was identified as a functional analog of the mammalian antibacterial chemerin-p4 peptide. The antimicrobial activity of multifunctional chemerin is mainly associated with a domain localized in the middle of the chemerin sequence, Val66-Pro85 peptide (chemerin-p4). Using bioinformatic tools, we found homologs of the chemerin-p4 peptide in the proteome of D. melanogaster. One of them is MFF-p1, which is a part of the MFF kl2 protein, encoded by the gene male fertility factor kl2 (kl-2) located on the long arm of the Y chromosome. The second detected peptide (Z-p1) is a part of the Zizimin protein belonging to DOCK family, which is involved in cellular signaling processes. After testing the antimicrobial properties of both peptides, we found that only MFF-p1 possesses these properties. Here, we demonstrate its antimicrobial potential both in vitro and in vivo after infecting D. melanogaster with bacteria. MFF-p1 strongly inhibits the viable counts of E. coli and B. subtilis after 2 h of treatment and disrupts bacterial cells. The expression of kl-2 is regulated by exposure to bacteria and by the circadian clock.
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6
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Petruk G, Elvén M, Hartman E, Davoudi M, Schmidtchen A, Puthia M, Petrlova J. The role of full-length apoE in clearance of Gram-negative bacteria and their endotoxins. J Lipid Res 2021; 62:100086. [PMID: 34019903 PMCID: PMC8225977 DOI: 10.1016/j.jlr.2021.100086] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2020] [Revised: 04/20/2021] [Accepted: 05/08/2021] [Indexed: 11/24/2022] Open
Abstract
ApoE is a well-known lipid-binding protein that plays a main role in the metabolism and transport of lipids. More recently, apoE-derived peptides have been shown to exert antimicrobial effects. Here, we investigated the antibacterial activity of apoE using in vitro assays, advanced imaging techniques, and in vivo mouse models. The formation of macromolecular complexes of apoE and endotoxins from Gram-negative bacteria was explored using gel shift assays, transmission electron microscopy, and CD spectroscopy followed by calculation of the α-helical content. The binding affinity of apoE to endotoxins was also confirmed by fluorescent spectroscopy detecting the quenching and shifting of tryptophan intrinsic fluorescence. We showed that apoE exhibits antibacterial activity particularly against Gram-negative bacteria such as Pseudomonas aeruginosa and Escherichia coli. ApoE protein folding was affected by binding of bacterial endotoxin components such as lipopolysaccharide (LPS) and lipid A, yielding similar increases in the apoE α-helical content. Moreover, high-molecular-weight complexes of apoE were formed in the presence of LPS, but not to the same extent as with lipid A. Together, our results demonstrate the ability of apoE to kill Gram-negative bacteria, interact with their endotoxins, which leads to the structural changes in apoE and the formation of aggregate-like complexes.
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Affiliation(s)
- Ganna Petruk
- Division of Dermatology and Venereology, Institution of Clinical Sciences, Lund University, Lund, Sweden
| | - Malin Elvén
- Division of Dermatology and Venereology, Institution of Clinical Sciences, Lund University, Lund, Sweden
| | - Erik Hartman
- Division of Dermatology and Venereology, Institution of Clinical Sciences, Lund University, Lund, Sweden
| | - Mina Davoudi
- Division of Dermatology and Venereology, Institution of Clinical Sciences, Lund University, Lund, Sweden; Division of Cancer and Infection Medicine, Institution of Clinical Sciences, Lund University, Lund, Sweden
| | - Artur Schmidtchen
- Division of Dermatology and Venereology, Institution of Clinical Sciences, Lund University, Lund, Sweden; Department of Biomedical Sciences, Copenhagen Wound Healing Center, Bispebjerg Hospital, University of Copenhagen, Copenhagen, Denmark; Division of Dermatology, Skane University Hospital, Lund, Sweden
| | - Manoj Puthia
- Division of Dermatology and Venereology, Institution of Clinical Sciences, Lund University, Lund, Sweden
| | - Jitka Petrlova
- Division of Dermatology and Venereology, Institution of Clinical Sciences, Lund University, Lund, Sweden.
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7
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Gaglione R, Pizzo E, Notomista E, de la Fuente-Nunez C, Arciello A. Host Defence Cryptides from Human Apolipoproteins: Applications in Medicinal Chemistry. Curr Top Med Chem 2021; 20:1324-1337. [PMID: 32338222 DOI: 10.2174/1568026620666200427091454] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2020] [Revised: 03/27/2020] [Accepted: 03/31/2020] [Indexed: 12/14/2022]
Abstract
Several eukaryotic proteins with defined physiological roles may act as precursors of cryptic bioactive peptides released upon protein cleavage by the host and/or bacterial proteases. Based on this, the term "cryptome" has been used to define the unique portion of the proteome encompassing proteins with the ability to generate bioactive peptides (cryptides) and proteins (crypteins) upon proteolytic cleavage. Hence, the cryptome represents a source of peptides with potential pharmacological interest. Among eukaryotic precursor proteins, human apolipoproteins play an important role, since promising bioactive peptides have been identified and characterized from apolipoproteins E, B, and A-I sequences. Human apolipoproteins derived peptides have been shown to exhibit antibacterial, anti-biofilm, antiviral, anti-inflammatory, anti-atherogenic, antioxidant, or anticancer activities in in vitro assays and, in some cases, also in in vivo experiments on animal models. The most interesting Host Defence Peptides (HDPs) identified thus far in human apolipoproteins are described here with a focus on their biological activities applicable to biomedicine. Altogether, reported evidence clearly indicates that cryptic peptides represent promising templates for the generation of new drugs and therapeutics against infectious diseases.
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Affiliation(s)
- Rosa Gaglione
- Department of Chemical Sciences, University of Naples Federico II, 80126 Naples, Italy
| | - Elio Pizzo
- Department of Biology, University of Naples Federico II, 80126 Naples, Italy
| | - Eugenio Notomista
- Department of Biology, University of Naples Federico II, 80126 Naples, Italy
| | - 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, and Department of Bioengineering, University of Pennsylvania, Philadelphia, Pennsylvania, United States
| | - Angela Arciello
- Department of Chemical Sciences, University of Naples Federico II, 80126 Naples, Italy.,Istituto Nazionale di Biostrutture e Biosistemi (INBB), 00136 Rome, Italy
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8
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Birchenough HL, Jowitt TA. Quartz Crystal Microbalance with Dissipation Monitoring (QCM-D): Preparing Functionalized Lipid Layers for the Study of Complex Protein-Ligand Interactions. Methods Mol Biol 2021; 2263:183-197. [PMID: 33877598 DOI: 10.1007/978-1-0716-1197-5_7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Quartz crystal microbalance with dissipation monitoring (QCM-D) is one of the most widely used techniques for the deposition of lipid layers and provides a useful tool for protein-ligand analysis. By using functionalized lipids, for example, with nitrilotriacetic acid (NTA) or biotin, one can couple a molecule to the surface to investigate ligand interactions. Using lipid layers in this way allows for the analysis of complex binding events such as conformational changes, fibrillation, and hierarchical clustering on the surface, which is difficult to interpret with conventional surface sensor techniques. Deposition of lipids and subsequent molecular interactions are easily monitored using both the frequency and the dissipation, which have distinct features in bilayer formation and make QCM-D the ideal technique to use. Here we describe the formation of biotinylated lipid bilayers using two different types of lipids and the subsequent addition of avidin, which can then be used as a basis for linking biotinylated molecules to the surface. These protocols can be adapted to use other lipid moieties and linking chemistries.
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Affiliation(s)
- Holly L Birchenough
- Faculty of Biology, Medicine and Health, University of Manchester, Manchester, UK
- Wellcome Trust Centre for Cell Matrix Research, University of Manchester, Manchester, UK
| | - Thomas A Jowitt
- Faculty of Biology, Medicine and Health, University of Manchester, Manchester, UK.
- Wellcome Trust Centre for Cell Matrix Research, University of Manchester, Manchester, UK.
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9
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Lazzaro BP, Zasloff M, Rolff J. Antimicrobial peptides: Application informed by evolution. Science 2020; 368:368/6490/eaau5480. [PMID: 32355003 DOI: 10.1126/science.aau5480] [Citation(s) in RCA: 490] [Impact Index Per Article: 122.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2018] [Revised: 11/25/2019] [Accepted: 03/09/2020] [Indexed: 12/13/2022]
Abstract
Antimicrobial peptides (AMPs) are essential components of immune defenses of multicellular organisms and are currently in development as anti-infective drugs. AMPs have been classically assumed to have broad-spectrum activity and simple kinetics, but recent evidence suggests an unexpected degree of specificity and a high capacity for synergies. Deeper evaluation of the molecular evolution and population genetics of AMP genes reveals more evidence for adaptive maintenance of polymorphism in AMP genes than has previously been appreciated, as well as adaptive loss of AMP activity. AMPs exhibit pharmacodynamic properties that reduce the evolution of resistance in target microbes, and AMPs may synergize with one another and with conventional antibiotics. Both of these properties make AMPs attractive for translational applications. However, if AMPs are to be used clinically, it is crucial to understand their natural biology in order to lessen the risk of collateral harm and avoid the crisis of resistance now facing conventional antibiotics.
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Affiliation(s)
- Brian P Lazzaro
- Department of Entomology, Cornell Institute of Host-Microbe Interactions and Disease, Cornell University, Ithaca, NY, USA
| | - Michael Zasloff
- MedStar Georgetown Transplant Institute, Georgetown University School of Medicine, Washington, DC, USA
| | - Jens Rolff
- Freie Universität Berlin, Evolutionary Biology, Institut für Biologie, Königin-Luise-Strasse 1-3, 14195 Berlin, Germany. .,Berlin-Brandenburg Institute of Advanced Biodiversity Research (BBIB), 14195 Berlin, Germany
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10
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Birchenough HL, Swann MJ, Zindy E, Day AJ, Jowitt TA. Enhanced avidin binding to lipid bilayers using PDP-PE lipids with PEG-biotin linkers. NANOSCALE ADVANCES 2020; 2:1625-1633. [PMID: 36132312 PMCID: PMC9417969 DOI: 10.1039/d0na00060d] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/22/2020] [Accepted: 03/07/2020] [Indexed: 06/15/2023]
Abstract
Two of the most important aspects of lipid bilayers that have increased their popularity in the field of nanotechnology and biosensors are their fluid nature, which is highly beneficial in ensuring the spatial organization of attached molecules, and the relative ease in which they can be manipulated to change the surface chemistry. Here we have used two different types of functionalized lipids to study the interaction of avidin, which is a common approach to attach further ligands for study. We have tested the commonly used Biotinyl-Cap-PE lipids at different molar percentages and reveal that avidin is not evenly distributed, but forms what looks like clusters even at low percentage occupancy which hampers the level of avidin that can be associated with the surface. We have then successfully employed the novel strategy of using PDP-PE lipids which contain a reducible disulphide to which we added maleamide-PEG-biotin spacers of different lengths. There is a more even distribution of avidin on these layers and thereby increasing the amount and efficiency of avidin association. The reduced levels of avidin that was being associated with the Biotinyl-Cap-PE layers as compared to the PDP-PE lipids could be analysed with QCM-D and interferometry approaches, but it was only with SEEC microscopy that the reason for the reduced occupancy was resolved.
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Affiliation(s)
| | - Marcus J Swann
- Swann Scientific Consulting Ltd 110 Sandy Lane Lymm WA13 9HR UK
| | - Egor Zindy
- Wellcome Trust Centre for Cell-Matrix Research UK
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Fuchs S, Shariati K, Ma M. Specialty Tough Hydrogels and Their Biomedical Applications. Adv Healthc Mater 2020; 9:e1901396. [PMID: 31846228 PMCID: PMC7586320 DOI: 10.1002/adhm.201901396] [Citation(s) in RCA: 89] [Impact Index Per Article: 22.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2019] [Revised: 11/23/2019] [Indexed: 02/06/2023]
Abstract
Hydrogels have long been explored as attractive materials for biomedical applications given their outstanding biocompatibility, high water content, and versatile fabrication platforms into materials with different physiochemical properties and geometries. Nonetheless, conventional hydrogels suffer from weak mechanical properties, restricting their use in persistent load-bearing applications often required of materials used in medical settings. Thus, the fabrication of mechanically robust hydrogels that can prolong the lifetime of clinically suitable materials under uncompromising in vivo conditions is of great interest. This review focuses on design considerations and strategies to construct such tough hydrogels. Several promising advances in the proposed use of specialty tough hydrogels for soft actuators, drug delivery vehicles, adhesives, coatings, and in tissue engineering settings are highlighted. While challenges remain before these specialty tough hydrogels will be deemed translationally acceptable for clinical applications, promising preliminary results undoubtedly spur great hope in the potential impact this embryonic research field can have on the biomedical community.
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Affiliation(s)
- Stephanie Fuchs
- Department of Biological and Environmental Engineering, Cornell University, Riley Robb Hall 322, Ithaca, NY, 14853, USA
| | - Kaavian Shariati
- Department of Biological and Environmental Engineering, Cornell University, Riley Robb Hall 322, Ithaca, NY, 14853, USA
| | - Minglin Ma
- Department of Biological and Environmental Engineering, Cornell University, Riley Robb Hall 322, Ithaca, NY, 14853, USA
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12
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Hornschuh M, Zwicker P, Schmidt T, Finke B, Kramer A, Müller G. Poly (hexamethylene biguanide), adsorbed onto Ti-Al-V alloys, kills slime-producing Staphylococci and Pseudomonas aeruginosa without inhibiting SaOs-2 cell differentiation. J Biomed Mater Res B Appl Biomater 2019; 108:1801-1813. [PMID: 31774237 DOI: 10.1002/jbm.b.34522] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2019] [Revised: 11/01/2019] [Accepted: 11/09/2019] [Indexed: 11/10/2022]
Abstract
Antimicrobial coating of implant material with poly(hexamethylene biguanide) hydrochloride (PHMB) may be an eligible method for preventing implant-associated infections. In the present study, an antibacterial effective amount of PHMB is adsorbed on the surface of titanium alloy after simple chemical pretreatment. Either oxidation with 5% H2 O2 for 24 hr or processing for 2 hr in 5 M NaOH provides the base for the subsequent formation of a relatively stable self-assembled PHMB layer. Compared with an untreated control group, adsorbed PHMB produces no adverse effects on SaOs-2 cells within 48 hr cell culture, but promotes the initial attachment and spreading of the osteoblasts within 15 min. Specimens were inoculated with slime-producing bacteria to simulate a perioperative infection. Adsorbed PHMB reacts bactericidally against Staphylococcus aureus, Staphylococcus epidermidis, and Pseudomonas aeruginosa after surface contact. Adhered SaOs-2 cells differentiate and produce alkaline phosphatase and deposit calcium within 4 days in a mineralization medium on PHMB-coated Ti6Al4V surfaces, which have been precontaminated with S. epidermidis. The presented procedures provide a simple method for generating biocompatibly and antimicrobially effective implant surfaces that may be clinically important.
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Affiliation(s)
- Melanie Hornschuh
- Institute of Hygiene and Environmental Medicine, University Medicine, Greifswald, Germany
| | - Paula Zwicker
- Institute of Hygiene and Environmental Medicine, University Medicine, Greifswald, Germany
| | - Thomas Schmidt
- Institute of Hygiene and Environmental Medicine, University Medicine, Greifswald, Germany
| | - Birgit Finke
- Leibniz-Institute for Plasma Science and Technology (INP e.V.), Greifswald, Germany
| | - Axel Kramer
- Institute of Hygiene and Environmental Medicine, University Medicine, Greifswald, Germany
| | - Gerald Müller
- Institute of Hygiene and Environmental Medicine, University Medicine, Greifswald, Germany
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13
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Ghilini F, Pissinis DE, Miñán A, Schilardi PL, Diaz C. How Functionalized Surfaces Can Inhibit Bacterial Adhesion and Viability. ACS Biomater Sci Eng 2019; 5:4920-4936. [DOI: 10.1021/acsbiomaterials.9b00849] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Fiorela Ghilini
- Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas (INIFTA), Facultad de Ciencias Exactas, UNLP − CONICET, CC16 Suc 4 (1900), La Plata, Buenos Aires, Argentina
| | - Diego E. Pissinis
- Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas (INIFTA), Facultad de Ciencias Exactas, UNLP − CONICET, CC16 Suc 4 (1900), La Plata, Buenos Aires, Argentina
| | - Alejandro Miñán
- Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas (INIFTA), Facultad de Ciencias Exactas, UNLP − CONICET, CC16 Suc 4 (1900), La Plata, Buenos Aires, Argentina
| | - Patricia L. Schilardi
- Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas (INIFTA), Facultad de Ciencias Exactas, UNLP − CONICET, CC16 Suc 4 (1900), La Plata, Buenos Aires, Argentina
| | - Carolina Diaz
- Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas (INIFTA), Facultad de Ciencias Exactas, UNLP − CONICET, CC16 Suc 4 (1900), La Plata, Buenos Aires, Argentina
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14
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Shahrour H, Ferrer-Espada R, Dandache I, Bárcena-Varela S, Sánchez-Gómez S, Chokr A, Martinez-de-Tejada G. AMPs as Anti-biofilm Agents for Human Therapy and Prophylaxis. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2019; 1117:257-279. [PMID: 30980362 DOI: 10.1007/978-981-13-3588-4_14] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Microbial cells show a strong natural tendency to adhere to surfaces and to colonize them by forming complex communities called biofilms. In this growth mode, biofilm-forming cells encase themselves inside a dense matrix which efficiently protects them against antimicrobial agents and effectors of the immune system. Moreover, at the physiological level, biofilms contain a very heterogeneous cell population including metabolically inactive organisms and persisters, which are highly tolerant to antibiotics. The majority of human infectious diseases are caused by biofilm-forming microorganisms which are responsible for pathologies such as cystic fibrosis, infective endocarditis, pneumonia, wound infections, dental caries, infections of indwelling devices, etc. AMPs are well suited to combat biofilms because of their potent bactericidal activity of broad spectrum (including resting cells and persisters) and their ability to first penetrate and then to disorganize these structures. In addition, AMPs frequently synergize with antimicrobial compounds and were recently reported to repress the molecular pathways leading to biofilm formation. Finally, there is a very active research to develop AMP-containing coatings that can prevent biofilm formation by killing microbial cells on contact or by locally releasing their active principle. In this chapter we will describe these strategies and discuss the perspectives of the use of AMPs as anti-biofilm agents for human therapy and prophylaxis.
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Affiliation(s)
- Hawraa Shahrour
- Department of Microbiology and Parasitology, University of Navarra, Pamplona, Spain.,Laboratory of Microbiology, Department of Life & Earth Sciences, Faculty of Sciences I, Lebanese University, Hadat campus, Beirut, Lebanon.,Platform of Research and Analysis in Environmental Sciences (PRASE), Doctoral School of Sciences and Technologies, Lebanese University, Hadat Campus, Beirut, Lebanon
| | - Raquel Ferrer-Espada
- Department of Microbiology and Parasitology, University of Navarra, Pamplona, Spain.,Wellman Center for Photomedicine, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
| | - Israa Dandache
- Laboratory of Microbiology, Department of Life & Earth Sciences, Faculty of Sciences I, Lebanese University, Hadat campus, Beirut, Lebanon.,Platform of Research and Analysis in Environmental Sciences (PRASE), Doctoral School of Sciences and Technologies, Lebanese University, Hadat Campus, Beirut, Lebanon
| | | | | | - Ali Chokr
- Laboratory of Microbiology, Department of Life & Earth Sciences, Faculty of Sciences I, Lebanese University, Hadat campus, Beirut, Lebanon.,Platform of Research and Analysis in Environmental Sciences (PRASE), Doctoral School of Sciences and Technologies, Lebanese University, Hadat Campus, Beirut, Lebanon
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15
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Kalita H, Hazarika A, Kandimalla R, Kalita S, Devi R. Development of banana ( Musa balbisiana) pseudo stem fiber as a surgical bio-tool to avert post-operative wound infections. RSC Adv 2018; 8:36791-36801. [PMID: 35558952 PMCID: PMC9089245 DOI: 10.1039/c8ra04470h] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2018] [Accepted: 10/14/2018] [Indexed: 11/21/2022] Open
Abstract
The search to develop an ideal suture material encourages us to explore novel suture biomaterials with superior characteristics to the current commercially available products. Surgical sutures play a crucial role in the development of post-operative wound infection by acting as a substrate for biofilm formation which leads to dehisced wounds. In this context, the present invention meets this need by fabricating banana (Musa balbisiana) fibre into an advanced antimicrobials releasing suture biomaterial (BSc) for the prevention of post-operative wound infection. Suture material developed from banana pseudo stem fiber was impregnated with chloramphenicol, clotrimazole and growth factors with the aid of a hydro-gel system. The fabricated suture material was found to be biocompatible towards human erythrocytes and L929 mouse fibroblast cells. BSc exhibited promising physico-chemical characteristics which were comparable to the commercially available Bombyx mori silk fibroin (BMSF) suture. BSc displayed a biphasic release pattern with sustained release of chloramphenicol for up to 140 h. Apart from being environment friendly and having a facile fabrication method, this advanced suture biomaterial showed broad spectrum in vitro antimicrobial activity against bacterial and fungal pathogens. BSc successfully impeded biofilm formation on its surface, as is evident from the confocal microscopy analysis. This contributes to superior wound healing efficacy in terms of reduced microbial burden and a subsequent decrease in the inflammatory cytokine levels. Histopathological observations further supported the pronounced healing efficacy of BSc sutured wounds. The findings of this study establish the banana pseudo stem fiber as a novel advanced suture biomaterial to prevent post-operative wound infections.
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Affiliation(s)
- Himadri Kalita
- Life Sciences Division, Institute of Advanced Study in Science and Technology Guwahati Assam India +91-9706107073 +91-9706053605
| | - Ankita Hazarika
- Life Sciences Division, Institute of Advanced Study in Science and Technology Guwahati Assam India +91-9706107073 +91-9706053605
| | - Raghuram Kandimalla
- Drug Discovery Laboratory, Institute of Advanced Study in Science and Technology Guwahati Assam 781035 India +91-9706033567
| | - Sanjeeb Kalita
- Drug Discovery Laboratory, Institute of Advanced Study in Science and Technology Guwahati Assam 781035 India +91-9706033567
| | - Rajlakshmi Devi
- Life Sciences Division, Institute of Advanced Study in Science and Technology Guwahati Assam India +91-9706107073 +91-9706053605
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16
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Zanfardino A, Bosso A, Gallo G, Pistorio V, Di Napoli M, Gaglione R, Dell'Olmo E, Varcamonti M, Notomista E, Arciello A, Pizzo E. Human apolipoprotein E as a reservoir of cryptic bioactive peptides: The case of ApoE 133-167. J Pept Sci 2018; 24:e3095. [PMID: 29900637 DOI: 10.1002/psc.3095] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2018] [Revised: 04/05/2018] [Accepted: 04/30/2018] [Indexed: 11/06/2022]
Abstract
Bioactive peptides derived from the receptor-binding region of human apolipoprotein E have previously been reported. All these peptides, encompassing fragments of this region or designed on the basis of short repeated cationic sequences identified in the same region, show toxic activities against a broad spectrum of bacteria and interesting immunomodulatory effects. However, the ability of these molecules to exert antibiofilm properties has not been described so far. In the present work, we report the characterization of a novel peptide, corresponding to residues 133 to 167 of human apolipoprotein E, here named ApoE (133-167). This peptide, besides presenting interesting properties comparable with those reported for other ApoE-derived peptides, such as a direct killing activity against a broad spectrum of bacteria or the ability to downregulate lipopolysaccharide-induced cytokine release, is also endowed with significant antibiofilm properties. Indeed, the peptide is able to strongly affect the formation of the extracellular matrix and also the viability of encapsulated bacteria. Noteworthy, ApoE (133-167) is not toxic toward human and murine cell lines and is able to assume ordered conformations in the presence of membrane mimicking agents. Taken together, collected evidences about biological and structural properties of ApoE (133-167) open new perspectives in the design of therapeutic agents based on human-derived bioactive peptides.
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Affiliation(s)
- Anna Zanfardino
- Department of Biology, University of Naples Federico II, 80126, Naples, Italy
| | - Andrea Bosso
- Department of Biology, University of Naples Federico II, 80126, Naples, Italy
| | - Giovanni Gallo
- Department of Biology, University of Naples Federico II, 80126, Naples, Italy
| | - Valeria Pistorio
- Department of Molecular Medicine and Medical Biotechnologies, University of Naples Federico II, Naples, Italy
| | - Michela Di Napoli
- Department of Biology, University of Naples Federico II, 80126, Naples, Italy
| | - Rosa Gaglione
- Department of Chemical Sciences, University of Naples Federico II, 80126, Naples, Italy
| | - Eliana Dell'Olmo
- Department of Chemical Sciences, University of Naples Federico II, 80126, Naples, Italy
| | - Mario Varcamonti
- Department of Biology, University of Naples Federico II, 80126, Naples, Italy
| | - Eugenio Notomista
- Department of Biology, University of Naples Federico II, 80126, Naples, Italy
| | - Angela Arciello
- Department of Chemical Sciences, University of Naples Federico II, 80126, Naples, Italy.,INBB-Istituto Nazionale Biostrutture e Biosistemi, Rome, Italy
| | - Elio Pizzo
- Department of Biology, University of Naples Federico II, 80126, Naples, Italy
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17
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Li S, Dong S, Xu W, Tu S, Yan L, Zhao C, Ding J, Chen X. Antibacterial Hydrogels. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2018; 5:1700527. [PMID: 29876202 PMCID: PMC5980143 DOI: 10.1002/advs.201700527] [Citation(s) in RCA: 548] [Impact Index Per Article: 91.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/24/2017] [Revised: 12/29/2017] [Indexed: 05/03/2023]
Abstract
Antibacterial materials are recognized as important biomaterials due to their effective inhibition of bacterial infections. Hydrogels are 3D polymer networks crosslinked by either physical interactions or covalent bonds. Currently, hydrogels with an antibacterial function are a main focus in biomedical research. Many advanced antibacterial hydrogels are developed, each possessing unique qualities, namely high water swellability, high oxygen permeability, improved biocompatibility, ease of loading and releasing drugs, and structural diversity. Here, an overview of the structures, performances, mechanisms of action, loading and release behaviors, and applications of various antibacterial hydrogel formulations is provided. Furthermore, the prospects in biomedical research and clinical applications are predicted.
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Affiliation(s)
- Shuqiang Li
- Department of Bone and Joint SurgeryThe First Hospital of Jilin UniversityChangchun130022P. R. China
| | - Shujun Dong
- Key Laboratory of Polymer EcomaterialsChangchun Institute of Applied ChemistryChinese Academy of SciencesChangchun130022P. R. China
- VIP Integrated DepartmentSchool and Hospital of Stomatology Jilin UniversityChangchun130021P. R. China
| | - Weiguo Xu
- Key Laboratory of Polymer EcomaterialsChangchun Institute of Applied ChemistryChinese Academy of SciencesChangchun130022P. R. China
| | - Shicheng Tu
- Department of Bone and Joint SurgeryThe First Hospital of Jilin UniversityChangchun130022P. R. China
| | - Lesan Yan
- Key Laboratory of Polymer EcomaterialsChangchun Institute of Applied ChemistryChinese Academy of SciencesChangchun130022P. R. China
| | - Changwen Zhao
- Key Laboratory of Polymer EcomaterialsChangchun Institute of Applied ChemistryChinese Academy of SciencesChangchun130022P. R. China
| | - Jianxun Ding
- Key Laboratory of Polymer EcomaterialsChangchun Institute of Applied ChemistryChinese Academy of SciencesChangchun130022P. R. China
| | - Xuesi Chen
- Key Laboratory of Polymer EcomaterialsChangchun Institute of Applied ChemistryChinese Academy of SciencesChangchun130022P. R. China
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18
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Yang K, Han Q, Chen B, Zheng Y, Zhang K, Li Q, Wang J. Antimicrobial hydrogels: promising materials for medical application. Int J Nanomedicine 2018; 13:2217-2263. [PMID: 29695904 PMCID: PMC5905846 DOI: 10.2147/ijn.s154748] [Citation(s) in RCA: 188] [Impact Index Per Article: 31.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
The rapid emergence of antibiotic resistance in pathogenic microbes is becoming an imminent global public health problem. Local application of antibiotics might be a solution. In local application, materials need to act as the drug delivery system. The drug delivery system should be biodegradable and prolonged antibacterial effect should be provided to satisfy clinical demand. Hydrogel is a promising material for local antibacterial application. Hydrogel refers to a kind of biomaterial synthesized by a water-soluble natural polymer or a synthesized polymer, which turns into gel according to the change in different signals such as temperature, ionic strength, pH, ultraviolet exposure etc. Because of its high hydrophilicity, unique three-dimensional network, fine biocompatibility and cell adhesion, hydrogel is one of the suitable biomaterials for drug delivery in antimicrobial areas. In this review, studies from the past 5 years were reviewed, and several types of antimicrobial hydrogels according to different ingredients, different preparations, different antimicrobial mechanisms, different antimicrobial agents they contained and different applications, were summarized. The hydrogels loaded with metal nanoparticles as a potential method to solve antibiotic resistance were highlighted. Finally, future prospects of development and application of antimicrobial hydrogels are suggested.
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Affiliation(s)
- Kerong Yang
- Department of Orthopedics, The Second Hospital, Jilin University, Changchun, Jilin, People's Republic of China
| | - Qing Han
- Department of Orthopedics, The Second Hospital, Jilin University, Changchun, Jilin, People's Republic of China
| | - Bingpeng Chen
- Department of Orthopedics, The Second Hospital, Jilin University, Changchun, Jilin, People's Republic of China
| | - Yuhao Zheng
- Department of Orthopedics, The Second Hospital, Jilin University, Changchun, Jilin, People's Republic of China
| | - Kesong Zhang
- Department of Orthopedics, The Second Hospital, Jilin University, Changchun, Jilin, People's Republic of China
| | - Qiang Li
- Department of Orthopedics, The Second Hospital, Jilin University, Changchun, Jilin, People's Republic of China
| | - Jincheng Wang
- Department of Orthopedics, The Second Hospital, Jilin University, Changchun, Jilin, People's Republic of China
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19
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Antibacterial cotton fabrics based on hydrophilic amino-containing scaffolds. Colloids Surf B Biointerfaces 2018; 164:42-49. [PMID: 29413619 DOI: 10.1016/j.colsurfb.2018.01.024] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2017] [Revised: 12/26/2017] [Accepted: 01/15/2018] [Indexed: 01/13/2023]
Abstract
A hydrophilic amino compound, 4,7,10-trioxatridecane-1,13-diamine, has been utilized in several chemical and biochemical studies. Among previous applications is its use as a flexible and economical spacer molecule to increase the length between two moieties of interest, one of which may be a solid-phase interface. In this study, we immobilized this molecule on cotton fabrics and showed that this modified surface (DA) exhibited significant antibacterial activities in both Gram-negative bacteria and a Gram-positive bacterium. Studies on the structure-activity relationship revealed that additional chemical modifications on DA usually led to lowered antibacterial activities, emphasizing an importance of having free amino groups. Further investigation by fluorescence microscope indicated that this modified surface likely interfered with the membrane integrity of bacteria, leading to cell lysis. In addition, this scaffold was also tested for its biocompatibility with mouse fibroblast cells, and exerted no detrimental effect to the cell growth, highlighting its potential as a practical antibacterial surface modifier.
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20
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Ahani E, Montazer M, Toliyat T, Mahmoudi Rad M. A novel biocompatible antibacterial product: Nanoliposomes loaded with poly(hexamethylene biguanide chloride). J BIOACT COMPAT POL 2016. [DOI: 10.1177/0883911516675367] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
In this study, nanoliposome-loaded poly(hexamethylene biguanide) is introduced as a novel biocompatible antibacterial product with higher activity than microliposomes. Soy lecithin as a clean product was used to prepare various nanoliposomes through sonication, high-pressure homogenizer, and normal homogenizer and also microliposomes through two methods of lipid film hydration and incubation methods. The nanoliposomes were formed under sonication with the size of 50 nm. The prepared liposomes were then loaded with poly(hexamethylene biguanide chloride) and the inclusion percentage was measured. The release profile of liposomes in buffer showed a release of 92% for poly(hexamethylene biguanide) during 24 h. The loaded liposomes were characterized with particle size analyzer, nuclear magnetic resonance, X-ray diffraction, Fourier transform infrared spectroscopy, and scanning electron microscopy. The antibacterial properties of different micro and nanoliposomes were investigated against a Gram-negative ( Escherichia coli) and a Gram-positive ( Staphylococcus aureus) bacteria. The poly(hexamethylene biguanide)–loaded nanoliposomes indicated higher antibacterial activities than microliposomes. Nanoliposomes have the potential to entrap lower poly(hexamethylene biguanide) dosages while retaining optimum therapeutic efficacy in the target site having lower cytotoxicity with lower side effects. The cytotoxicity of poly(hexamethylene biguanide) entrapped in liposomes was studied in human dermal fibroblasts and compared with free poly(hexamethylene biguanide) and blank liposomes. The maximum cytotoxicity was observed for free poly(hexamethylene biguanide) that is substantially decreased through loading within liposomes structure. Overall, the encapsulation of poly(hexamethylene biguanide) in liposomes improved the biocompatibility and safety of the product introducing a useful biocompatible antibacterial polymer for treatments of infectious diseases.
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Affiliation(s)
- Elnaz Ahani
- Islamic Azad University, Science and Research Branch, Tehran, Iran
| | - Majid Montazer
- Department of Textile Engineering, Center of Excellence in Textile, Amirkabir University of Technology, Tehran, Iran
| | - Tayebeh Toliyat
- Department of Pharmaceutics, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
| | - Mahnaz Mahmoudi Rad
- Skin Research Centre, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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21
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Variable Effects of Exposure to Formulated Microbicides on Antibiotic Susceptibility in Firmicutes and Proteobacteria. Appl Environ Microbiol 2016; 82:3591-3598. [PMID: 27060123 DOI: 10.1128/aem.00701-16] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2016] [Accepted: 04/04/2016] [Indexed: 11/20/2022] Open
Abstract
UNLABELLED Microbicides are broad-spectrum antimicrobial agents that generally interact with multiple pharmacological targets. While they are widely deployed in disinfectant, antiseptic, and preservative formulations, data relating to their potential to select for microbicide or antibiotic resistance have been generated mainly by testing the compounds in much simpler aqueous solutions. In the current investigation, antibiotic susceptibility was determined for bacteria that had previously exhibited decreased microbicide susceptibility following repeated exposure to microbicides either in formulation with sequestrants and surfactants or in simple aqueous solution. Statistically significant increases in antibiotic susceptibility occurred for 12% of bacteria after exposure to microbicides in formulation and 20% of bacteria after exposure to microbicides in aqueous solutions, while 22% became significantly less susceptible to the antibiotics, regardless of formulation. Of the combinations of a bacterium and an antibiotic for which British Society for Antimicrobial Chemotherapy breakpoints are available, none became resistant. Linear modeling taking into account phylogeny, microbicide, antibiotic, and formulation identified small but significant effects of formulation that varied depending on the bacterium and microbicide. Adaptation to formulated benzalkonium chloride in particular was more likely to increase antibiotic susceptibility than adaptation to the simple aqueous solution. In conclusion, bacterial adaptation through repeated microbicide exposure was associated with both increases and decreases in antibiotic susceptibility. Formulation of the microbicide to which the bacteria had previously adapted had an identifiable effect on antibiotic susceptibility, but it effect was typically small relative to the differences observed among microbicides. Susceptibility changes resulting in resistance were not observed. IMPORTANCE The safety of certain microbicide applications has been questioned due to the possibility that microbicide exposure could select for microbicide and antibiotic resistance. Evidence that this may happen is based mainly on in vitro experiments where bacteria have been exposed to microbicides in aqueous solution. Microbicides are, however, normally deployed in products formulated with surfactants, sequestrants, and other compounds. While this may influence the frequency and extent of susceptibility changes, few studies reported in the literature have assessed this. In the current investigation, therefore, we have investigated changes in antibiotic susceptibility in bacteria which exhibited decreased microbicide susceptibility following repeated exposure to microbicides in simple aqueous solutions and in formulation. We report that the microbicide formulation had an identifiable effect on antibiotic susceptibility, but it was typically small relative to the differences observed among microbicides. We did not observe susceptibility changes resulting in resistance.
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22
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Cai Q, Gao Y, Gao T, Lan S, Simalou O, Zhou X, Zhang Y, Harnoode C, Gao G, Dong A. Insight into Biological Effects of Zinc Oxide Nanoflowers on Bacteria: Why Morphology Matters. ACS APPLIED MATERIALS & INTERFACES 2016; 8:10109-10120. [PMID: 27042940 DOI: 10.1021/acsami.5b11573] [Citation(s) in RCA: 61] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Zinc oxides have gained exciting achievements in antimicrobial fields because of their advantageous properties, whereas their biological effects on bacteria are currently underexplored. In this study, biological effects of flower-shaped nano zinc oxides on bacteria were systematically investigated. Zinc oxide nanoflowers with controllable morphologies (viz., rod flowers, fusiform flowers, and petal flowers) were synthesized by modulating merely base type and concentration using the hydrothermal process. Their antibacterial power is in an order of petal flowers > fusiform flowers > rod flowers because of their differences in microscopic parameters such as specific surface area, pore size, and Zn-polar plane, etc. More importantly, the role of morphology in influencing biological effect on bacteria was examined, focusing on the morphology-induced effect on integrality of cell wall, permeability of cell membrane, DNA cleavage, etc. As for cytotoxicity, all petal flowers, fusiform flowers, and rod flowers show trivial cytotoxicity to the Hela cells. This work provides a guide for enhancing biological effect of the biocides on pathogenic bacteria by the morphological modulation.
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Affiliation(s)
- Qian Cai
- College of Chemistry and Chemical Engineering, Inner Mongolia University , Hohhot 010021, People's Republic of China
| | - Yangyang Gao
- College of Chemistry and Chemical Engineering, Inner Mongolia University , Hohhot 010021, People's Republic of China
| | - Tianyi Gao
- College of Chemistry and Chemical Engineering, Inner Mongolia University , Hohhot 010021, People's Republic of China
| | - Shi Lan
- College of Science, Inner Mongolia Agricultural University , Hohhot 010018, People's Republic of China
| | - Oudjaniyobi Simalou
- Département de Chimie, Faculté Des Sciences (FDS), Université de Lomé (UL) , Lome BP 1515, Togo
| | - Xinyue Zhou
- College of Chemistry and Chemical Engineering, Inner Mongolia University , Hohhot 010021, People's Republic of China
| | - Yanling Zhang
- College of Chemistry and Chemical Engineering, Inner Mongolia University , Hohhot 010021, People's Republic of China
| | - Chokto Harnoode
- College of Chemistry and Chemical Engineering, Inner Mongolia University , Hohhot 010021, People's Republic of China
| | - Ge Gao
- College of Chemistry, Jilin University , Changchun 130021, People's Republic of China
| | - Alideertu Dong
- College of Chemistry and Chemical Engineering, Inner Mongolia University , Hohhot 010021, People's Republic of China
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23
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Pane K, Sgambati V, Zanfardino A, Smaldone G, Cafaro V, Angrisano T, Pedone E, Di Gaetano S, Capasso D, Haney EF, Izzo V, Varcamonti M, Notomista E, Hancock REW, Di Donato A, Pizzo E. A new cryptic cationic antimicrobial peptide from human apolipoprotein E with antibacterial activity and immunomodulatory effects on human cells. FEBS J 2016; 283:2115-31. [PMID: 27028511 DOI: 10.1111/febs.13725] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2015] [Revised: 02/28/2016] [Accepted: 03/29/2016] [Indexed: 11/29/2022]
Abstract
Cationic antimicrobial peptides (AMPs) possess fast and broad-spectrum activity against both Gram-negative and Gram-positive bacteria, as well as fungi. It has become increasingly evident that many AMPs, including those that derive from fragments of host proteins, are multifunctional and able to mediate various immunomodulatory functions and angiogenesis. Among these, synthetic apolipoprotein-derived peptides are safe and well tolerated in humans and have emerged as promising candidates in the treatment of various inflammatory conditions. Here, we report the characterization of a new AMP corresponding to residues 133-150 of human apolipoprotein E. Our results show that this peptide, produced either by chemical synthesis or by recombinant techniques in Escherichia coli, possesses a broad-spectrum antibacterial activity. As shown for several other AMPs, ApoE (133-150) is structured in the presence of TFE and of membrane-mimicking agents, like SDS, or bacterial surface lipopolysaccharide (LPS), and an anionic polysaccharide, alginate, which mimics anionic capsular exo-polysaccharides of several pathogenic microorganisms. Noteworthy, ApoE (133-150) is not toxic toward several human cell lines and triggers a significant innate immune response, assessed either as decreased expression levels of proinflammatory cytokines in differentiated THP-1 monocytic cells or by the induction of chemokines released from PBMCs. This novel bioactive AMP also showed a significant anti-inflammatory effect on human keratinocytes, suggesting its potential use as a model for designing new immunomodulatory therapeutics.
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Affiliation(s)
- Katia Pane
- Department of Biology, University of Naples Federico II, Naples, Italy.,Department of Microbiology and Immunology, Centre for Microbial Diseases and Immunity Research, University of British Columbia, Vancouver, BC, Canada
| | - Valeria Sgambati
- Department of Biology, University of Naples Federico II, Naples, Italy
| | - Anna Zanfardino
- Department of Biology, University of Naples Federico II, Naples, Italy
| | | | - Valeria Cafaro
- Department of Biology, University of Naples Federico II, Naples, Italy
| | - Tiziana Angrisano
- Department of Biology, University of Naples Federico II, Naples, Italy
| | - Emilia Pedone
- Institute of Biostructures and Bioimaging, C.N.R., Naples, Italy
| | - Sonia Di Gaetano
- Institute of Biostructures and Bioimaging, C.N.R., Naples, Italy
| | - Domenica Capasso
- Department of Pharmacy, University of Naples Federico II, Naples, Italy
| | - Evan F Haney
- Department of Microbiology and Immunology, Centre for Microbial Diseases and Immunity Research, University of British Columbia, Vancouver, BC, Canada
| | - Viviana Izzo
- Department of Medicine and Surgery, University of Salerno, Baronissi (SA), Italy
| | - Mario Varcamonti
- Department of Biology, University of Naples Federico II, Naples, Italy
| | - Eugenio Notomista
- Department of Biology, University of Naples Federico II, Naples, Italy
| | - Robert E W Hancock
- Department of Microbiology and Immunology, Centre for Microbial Diseases and Immunity Research, University of British Columbia, Vancouver, BC, Canada
| | - Alberto Di Donato
- Department of Biology, University of Naples Federico II, Naples, Italy
| | - Elio Pizzo
- Department of Biology, University of Naples Federico II, Naples, Italy
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24
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Tummalapalli M, Anjum S, Kumari S, Gupta B. Antimicrobial Surgical Sutures: Recent Developments and Strategies. POLYM REV 2016. [DOI: 10.1080/15583724.2015.1119163] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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25
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de la Fuente-Núñez C, Cardoso MH, de Souza Cândido E, Franco OL, Hancock REW. Synthetic antibiofilm peptides. BIOCHIMICA ET BIOPHYSICA ACTA-BIOMEMBRANES 2015; 1858:1061-9. [PMID: 26724202 DOI: 10.1016/j.bbamem.2015.12.015] [Citation(s) in RCA: 151] [Impact Index Per Article: 16.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/02/2015] [Revised: 12/03/2015] [Accepted: 12/09/2015] [Indexed: 02/06/2023]
Abstract
Bacteria predominantly exist as multicellular aggregates known as biofilms that are associated with at least two thirds of all infections and exhibit increased adaptive resistance to conventional antibiotic therapies. Therefore, biofilms are major contributors to the global health problem of antibiotic resistance, and novel approaches to counter them are urgently needed. Small molecules of the innate immune system called host defense peptides (HDPs) have emerged as promising templates for the design of potent, broad-spectrum antibiofilm agents. Here, we review recent developments in the new field of synthetic antibiofilm peptides, including mechanistic insights, synergistic interactions with available antibiotics, and their potential as novel antimicrobials against persistent infections caused by biofilms. This article is part of a Special Issue entitled: Antimicrobial peptides edited by Karl Lohner and Kai Hilpert.
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Affiliation(s)
- César de la Fuente-Núñez
- Centre for Microbial Diseases and Immunity Research, Department of Microbiology and Immunology, University of British Columbia, Vancouver, Canada
| | - Marlon Henrique Cardoso
- Departamento de Patologia Molecular, Universidade de Brasília, Brasília, DF, Brazil; Centro de Análises Proteômicas e Bioquímicas, Universidade Católica de Brasília, Brasília, DF, Brazil
| | - Elizabete de Souza Cândido
- Centro de Análises Proteômicas e Bioquímicas, Universidade Católica de Brasília, Brasília, DF, Brazil; S-Inova Biotech, Programa de Pós Graduação em Biotecnologia, Universidade Católica Dom Bosco, Campo Grande, MS, Brazil
| | - Octavio Luiz Franco
- Departamento de Patologia Molecular, Universidade de Brasília, Brasília, DF, Brazil; Centro de Análises Proteômicas e Bioquímicas, Universidade Católica de Brasília, Brasília, DF, Brazil; S-Inova Biotech, Programa de Pós Graduação em Biotecnologia, Universidade Católica Dom Bosco, Campo Grande, MS, Brazil
| | - Robert E W Hancock
- Centre for Microbial Diseases and Immunity Research, Department of Microbiology and Immunology, University of British Columbia, Vancouver, Canada.
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26
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Bragazzi NL, Amicizia D, Panatto D, Tramalloni D, Valle I, Gasparini R. Quartz-Crystal Microbalance (QCM) for Public Health: An Overview of Its Applications. ADVANCES IN PROTEIN CHEMISTRY AND STRUCTURAL BIOLOGY 2015; 101:149-211. [PMID: 26572979 DOI: 10.1016/bs.apcsb.2015.08.002] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Nanobiotechnologies, from the convergence of nanotechnology and molecular biology and postgenomics medicine, play a major role in the field of public health. This overview summarizes the potentiality of piezoelectric sensors, and in particular, of quartz-crystal microbalance (QCM), a physical nanogram-sensitive device. QCM enables the rapid, real time, on-site detection of pathogens with an enormous burden in public health, such as influenza and other respiratory viruses, hepatitis B virus (HBV), and drug-resistant bacteria, among others. Further, it allows to detect food allergens, food-borne pathogens, such as Escherichia coli and Salmonella typhimurium, and food chemical contaminants, as well as water-borne microorganisms and environmental contaminants. Moreover, QCM holds promises in early cancer detection and screening of new antiblastic drugs. Applications for monitoring biohazards, for assuring homeland security, and preventing bioterrorism are also discussed.
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Affiliation(s)
- Nicola Luigi Bragazzi
- Department of Health Sciences (DISSAL), Via Antonio Pastore 1, University of Genoa, Genoa, Italy
| | - Daniela Amicizia
- Department of Health Sciences (DISSAL), Via Antonio Pastore 1, University of Genoa, Genoa, Italy
| | - Donatella Panatto
- Department of Health Sciences (DISSAL), Via Antonio Pastore 1, University of Genoa, Genoa, Italy
| | - Daniela Tramalloni
- Department of Health Sciences (DISSAL), Via Antonio Pastore 1, University of Genoa, Genoa, Italy
| | - Ivana Valle
- SSD "Popolazione a rischio," Health Prevention Department, Local Health Unit ASL3 Genovese, Genoa, Italy
| | - Roberto Gasparini
- Department of Health Sciences (DISSAL), Via Antonio Pastore 1, University of Genoa, Genoa, Italy.
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27
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Elkhatib WF, Hair PS, Nyalwidhe JO, Cunnion KM. New potential role of serum apolipoprotein E mediated by its binding to clumping factor A during Staphylococcus aureus invasive infections to humans. J Med Microbiol 2015; 64:335-343. [PMID: 25878259 DOI: 10.1099/jmm.0.000010] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
Staphylococcus aureus is a crucial human pathogen expressing various immune-evasion proteins that interact with the host-cell molecules. Clumping factor A (ClfA) is a microbial surface protein that promotes S. aureus binding to fibrinogen, and is associated with septic arthritis and infective endocarditis. In order to identify the major human serum proteins that bind the ClfA, we utilized recombinant ClfA region A in a plate-based assay. SDS-PAGE analysis of the bound proteins yielded five prominent bands, which were analysed by MS yielding apolipoprotein E (ApoE) as the predominant protein. ClfA-sufficient S. aureus bound purified ApoE by more than one log greater than an isogenic ClfA-deficient mutant. An immunodot-blot assay yielded a linearity model for ClfA binding to human ApoE with a stoichiometric-binding ratio of 1.702 at maximal Pearson's correlation coefficient (0.927). These data suggest that ApoE could be a major and novel binding target for the S. aureus virulence factor ClfA. Thus, ClfA recruitment of serum ApoE to the S. aureus surface may sequester ApoE and blunt its host defence function against S. aureus-invasive infections to humans. In this context, compounds that can block or suppress ClfA binding to ApoE might be utilized as prophylactic or therapeutic agents.
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Affiliation(s)
- Walid F Elkhatib
- Department of Pharmacy Practice, School of Pharmacy, Hampton University, Kittrell Hall, Hampton, VA 23668, USA.,Department of Pediatrics, Eastern Virginia Medical School, E.V. Williams Hall, 855 W. Brambleton Avenue, Norfolk, VA 23510, USA.,Department of Microbiology and Immunology, Faculty of Pharmacy, Ain Shams University, Organization of African Unity St., Abbassia, Cairo 11566, Egypt
| | - Pamela S Hair
- Department of Pediatrics, Eastern Virginia Medical School, E.V. Williams Hall, 855 W. Brambleton Avenue, Norfolk, VA 23510, USA
| | - Julius O Nyalwidhe
- Leroy T. Canoles Jr Cancer Research Center, Eastern Virginia Medical School, 651 Colley Avenue, Norfolk, VA, USA.,Department of Microbiology and Molecular Cell Biology, Eastern Virginia Medical School 700 West Olney Road, Norfolk, VA, USA
| | - Kenji M Cunnion
- Children's Hospital of the King's Daughters, 601 Children's Lane, Norfolk, VA 23507, USA.,Children's Specialty Group, 601 Children's Lane, Norfolk, VA 23507, USA.,Department of Pediatrics, Eastern Virginia Medical School, E.V. Williams Hall, 855 W. Brambleton Avenue, Norfolk, VA 23510, USA
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28
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Lee TH, Hirst DJ, Aguilar MI. New insights into the molecular mechanisms of biomembrane structural changes and interactions by optical biosensor technology. BIOCHIMICA ET BIOPHYSICA ACTA-BIOMEMBRANES 2015; 1848:1868-85. [PMID: 26009270 DOI: 10.1016/j.bbamem.2015.05.012] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/19/2014] [Revised: 05/15/2015] [Accepted: 05/17/2015] [Indexed: 12/31/2022]
Abstract
Biomolecular-membrane interactions play a critical role in the regulation of many important biological processes such as protein trafficking, cellular signalling and ion channel formation. Peptide/protein-membrane interactions can also destabilise and damage the membrane which can lead to cell death. Characterisation of the molecular details of these binding-mediated membrane destabilisation processes is therefore central to understanding cellular events such as antimicrobial action, membrane-mediated amyloid aggregation, and apoptotic protein induced mitochondrial membrane permeabilisation. Optical biosensors have provided a unique approach to characterising membrane interactions allowing quantitation of binding events and new insight into the kinetic mechanism of these interactions. One of the most commonly used optical biosensor technologies is surface plasmon resonance (SPR) and there have been an increasing number of studies reporting the use of this technique for investigating biophysical analysis of membrane-mediated events. More recently, a number of new optical biosensors based on waveguide techniques have been developed, allowing membrane structure changes to be measured simultaneously with mass binding measurements. These techniques include dual polarisation interferometry (DPI), plasmon waveguide resonance spectroscopy (PWR) and optical waveguide light mode spectroscopy (OWLS). These techniques have expanded the application of optical biosensors to allow the analysis of membrane structure changes during peptide and protein binding. This review provides a theoretical and practical overview of the application of biosensor technology with a specific focus on DPI, PWR and OWLS to study biomembrane-mediated events and the mechanism of biomembrane disruption. This article is part of a Special Issue entitled: Lipid-protein interactions.
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Affiliation(s)
- Tzong-Hsien Lee
- Department of Biochemistry and Molecular Biology, Monash University, Wellington Rd, Clayton, VIC 3800, Australia
| | - Daniel J Hirst
- Department of Biochemistry and Molecular Biology, Monash University, Wellington Rd, Clayton, VIC 3800, Australia
| | - Marie-Isabel Aguilar
- Department of Biochemistry and Molecular Biology, Monash University, Wellington Rd, Clayton, VIC 3800, Australia.
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29
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Serrano C, García-Fernández L, Fernández-Blázquez JP, Barbeck M, Ghanaati S, Unger R, Kirkpatrick J, Arzt E, Funk L, Turón P, del Campo A. Nanostructured medical sutures with antibacterial properties. Biomaterials 2015; 52:291-300. [PMID: 25818435 DOI: 10.1016/j.biomaterials.2015.02.039] [Citation(s) in RCA: 92] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2014] [Revised: 02/02/2015] [Accepted: 02/06/2015] [Indexed: 12/15/2022]
Abstract
Bacterial repellence in suture materials is a desirable property that can potentially improve the healing process by preventing infection. We describe a method for generating nanostructures at the surface of commercial sutures of different composition, and their potential for preventing biofilm formation. We show how bacteria attachment is altered in the presence of nanosized topographies and identify optimum designs for preventing it without compromising biocompatibility and applicability in terms of nanostructure robustness or tissue friction. These studies open new possibilities for flexible and cost-effective realization of topography-based antibacterial coatings for absorbable biomedical textiles.
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Affiliation(s)
- Cristina Serrano
- Max-Planck-Institut für Polymerforschung, Ackermannweg 10, 55128 Mainz, Germany
| | | | | | - Mike Barbeck
- Institute of Pathology, University Medical Center, Johannes Gutenberg University, Mainz, Germany
| | - Shahram Ghanaati
- Institute of Pathology, University Medical Center, Johannes Gutenberg University, Mainz, Germany
| | - Ron Unger
- Institute of Pathology, University Medical Center, Johannes Gutenberg University, Mainz, Germany
| | - James Kirkpatrick
- Institute of Pathology, University Medical Center, Johannes Gutenberg University, Mainz, Germany
| | - Eduard Arzt
- INM - Leibniz Institute for New Materials and Saarland University, Saarbrücken, Germany
| | - Lutz Funk
- B. Braun Surgical, S.A, Rubi, Barcelona, Spain
| | - Pau Turón
- B. Braun Surgical, S.A, Rubi, Barcelona, Spain
| | - Aránzazu del Campo
- Max-Planck-Institut für Polymerforschung, Ackermannweg 10, 55128 Mainz, Germany.
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30
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Godoy-Gallardo M, Mas-Moruno C, Yu K, Manero JM, Gil FJ, Kizhakkedathu JN, Rodriguez D. Antibacterial Properties of hLf1–11 Peptide onto Titanium Surfaces: A Comparison Study Between Silanization and Surface Initiated Polymerization. Biomacromolecules 2015; 16:483-96. [DOI: 10.1021/bm501528x] [Citation(s) in RCA: 93] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- Maria Godoy-Gallardo
- Biomaterials,
Biomechanics and Tissue Engineering Group, Department of Materials
Science and Metallurgy, Technical University of Catalonia (UPC), ETSEIB, Avenida Diagonal 647, 08028-Barcelona, Spain
- Biomedical Research Networking Centre in Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Campus Río Ebro,
Edificio I+D Bloque 5, 1a planta, c/Poeta Mariano Esquillor
s/n, 50018-Zaragoza, Spain
- Centre for Research in NanoEngineering (CRNE) - UPC, C/Pascual i Vila 15, 08028-Barcelona, Spain
| | - Carlos Mas-Moruno
- Biomaterials,
Biomechanics and Tissue Engineering Group, Department of Materials
Science and Metallurgy, Technical University of Catalonia (UPC), ETSEIB, Avenida Diagonal 647, 08028-Barcelona, Spain
- Biomedical Research Networking Centre in Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Campus Río Ebro,
Edificio I+D Bloque 5, 1a planta, c/Poeta Mariano Esquillor
s/n, 50018-Zaragoza, Spain
- Centre for Research in NanoEngineering (CRNE) - UPC, C/Pascual i Vila 15, 08028-Barcelona, Spain
| | - Kai Yu
- Centre
for Blood Research and Department of Pathology and Laboratory Medicine, University of British Columbia, Life Sciences Centre, 2350 Health Sciences Mall, Vancouver, British Columbia Canada, V6T 1Z3
| | - José M. Manero
- Biomaterials,
Biomechanics and Tissue Engineering Group, Department of Materials
Science and Metallurgy, Technical University of Catalonia (UPC), ETSEIB, Avenida Diagonal 647, 08028-Barcelona, Spain
- Biomedical Research Networking Centre in Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Campus Río Ebro,
Edificio I+D Bloque 5, 1a planta, c/Poeta Mariano Esquillor
s/n, 50018-Zaragoza, Spain
- Centre for Research in NanoEngineering (CRNE) - UPC, C/Pascual i Vila 15, 08028-Barcelona, Spain
| | - Francisco J. Gil
- Biomaterials,
Biomechanics and Tissue Engineering Group, Department of Materials
Science and Metallurgy, Technical University of Catalonia (UPC), ETSEIB, Avenida Diagonal 647, 08028-Barcelona, Spain
- Biomedical Research Networking Centre in Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Campus Río Ebro,
Edificio I+D Bloque 5, 1a planta, c/Poeta Mariano Esquillor
s/n, 50018-Zaragoza, Spain
- Centre for Research in NanoEngineering (CRNE) - UPC, C/Pascual i Vila 15, 08028-Barcelona, Spain
| | - Jayachandran N. Kizhakkedathu
- Centre
for Blood Research and Department of Pathology and Laboratory Medicine, University of British Columbia, Life Sciences Centre, 2350 Health Sciences Mall, Vancouver, British Columbia Canada, V6T 1Z3
- Department
of Chemistry, University of British Columbia, 2036 Main Mall, Vancouver, British Columbia Canada, V6T 1Z1
| | - Daniel Rodriguez
- Biomaterials,
Biomechanics and Tissue Engineering Group, Department of Materials
Science and Metallurgy, Technical University of Catalonia (UPC), ETSEIB, Avenida Diagonal 647, 08028-Barcelona, Spain
- Biomedical Research Networking Centre in Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Campus Río Ebro,
Edificio I+D Bloque 5, 1a planta, c/Poeta Mariano Esquillor
s/n, 50018-Zaragoza, Spain
- Centre for Research in NanoEngineering (CRNE) - UPC, C/Pascual i Vila 15, 08028-Barcelona, Spain
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31
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Bazaka K, Jacob MV, Chrzanowski W, Ostrikov K. Anti-bacterial surfaces: natural agents, mechanisms of action, and plasma surface modification. RSC Adv 2015. [DOI: 10.1039/c4ra17244b] [Citation(s) in RCA: 152] [Impact Index Per Article: 16.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
This article reviews antibacterial surface strategies based on reactive plasma chemistry, focusing on how plasma-assisted processing of natural antimicrobial agents can produce antifouling and antibacterial materials for biomedical devices.
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Affiliation(s)
- K. Bazaka
- School of Chemistry
- Physics and Mechanical Engineering
- Queensland University of Technology
- Brisbane
- Australia
| | - M. V. Jacob
- College of Science, Technology and Engineering
- James Cook University
- Townsville
- Australia
| | | | - K. Ostrikov
- School of Chemistry
- Physics and Mechanical Engineering
- Queensland University of Technology
- Brisbane
- Australia
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32
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Otter J, Vickery K, Walker J, deLancey Pulcini E, Stoodley P, Goldenberg S, Salkeld J, Chewins J, Yezli S, Edgeworth J. Surface-attached cells, biofilms and biocide susceptibility: implications for hospital cleaning and disinfection. J Hosp Infect 2015; 89:16-27. [DOI: 10.1016/j.jhin.2014.09.008] [Citation(s) in RCA: 102] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2014] [Accepted: 09/08/2014] [Indexed: 10/24/2022]
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33
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Escorihuela J, González-Martínez MÁ, López-Paz JL, Puchades R, Maquieira Á, Gimenez-Romero D. Dual-Polarization Interferometry: A Novel Technique To Light up the Nanomolecular World. Chem Rev 2014; 115:265-94. [DOI: 10.1021/cr5002063] [Citation(s) in RCA: 58] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Jorge Escorihuela
- Department
of Chemistry, Institute of Molecular Recognition and Technological
Development, Universitat Politècnica de València, Camino
de Vera s/n, 46022 València, Spain
| | - Miguel Ángel González-Martínez
- Department
of Chemistry, Institute of Molecular Recognition and Technological
Development, Universitat Politècnica de València, Camino
de Vera s/n, 46022 València, Spain
| | - José Luis López-Paz
- Department
of Chemistry, Institute of Molecular Recognition and Technological
Development, Universitat Politècnica de València, Camino
de Vera s/n, 46022 València, Spain
| | - Rosa Puchades
- Department
of Chemistry, Institute of Molecular Recognition and Technological
Development, Universitat Politècnica de València, Camino
de Vera s/n, 46022 València, Spain
| | - Ángel Maquieira
- Department
of Chemistry, Institute of Molecular Recognition and Technological
Development, Universitat Politècnica de València, Camino
de Vera s/n, 46022 València, Spain
| | - David Gimenez-Romero
- Physical
Chemistry Department, Faculty of Chemistry, Universitat de València, Avenida Dr. Moliner 50, 46100 Burjassot, València, Spain
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34
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Pina AS, Batalha ÍL, Fernandes CSM, Aoki MA, Roque ACA. Exploring the potential of magnetic antimicrobial agents for water disinfection. WATER RESEARCH 2014; 66:160-168. [PMID: 25201339 DOI: 10.1016/j.watres.2014.08.024] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/08/2014] [Revised: 07/16/2014] [Accepted: 08/18/2014] [Indexed: 06/03/2023]
Abstract
Industrial and urban activities yield large amounts of contaminated groundwater, which present a major health issue worldwide. Infectious diseases are the most common health risk associated with drinking-water and wastewater remediation is a major concern of our modern society. The field of wastewater treatment is being revolutionized by new nano-scale water disinfection devices which outperform most currently available technologies. In particular, iron oxide magnetic nanoparticles (MNPs) have been widely used in environmental applications due to their unique physical-chemical properties. In this work, poly(ethylene) glycol (PEG)-coated MNPs have been functionalized with (RW)3, an antimicrobial peptide, to yield a novel magnetic-responsive support with antimicrobial activity against Escherichia coli K-12 DSM498 and Bacillus subtilis 168. The magnetic-responsive antimicrobial device showed to be able to successfully disinfect the surrounding solution. Using a rapid high-throughput screening platform, the minimal inhibitory concentration (MIC) was determined to be 500 μM for both strains with a visible bactericidal effect.
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Affiliation(s)
- Ana S Pina
- REQUIMTE, Departamento de Química, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal.
| | - Íris L Batalha
- REQUIMTE, Departamento de Química, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal
| | - Cláudia S M Fernandes
- REQUIMTE, Departamento de Química, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal
| | - Matheus A Aoki
- REQUIMTE, Departamento de Química, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal
| | - Ana C A Roque
- REQUIMTE, Departamento de Química, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal.
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35
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Antibacterial surface treatment for orthopaedic implants. Int J Mol Sci 2014; 15:13849-80. [PMID: 25116685 PMCID: PMC4159828 DOI: 10.3390/ijms150813849] [Citation(s) in RCA: 179] [Impact Index Per Article: 17.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2013] [Revised: 06/06/2014] [Accepted: 06/13/2014] [Indexed: 02/07/2023] Open
Abstract
It is expected that the projected increased usage of implantable devices in medicine will result in a natural rise in the number of infections related to these cases. Some patients are unable to autonomously prevent formation of biofilm on implant surfaces. Suppression of the local peri-implant immune response is an important contributory factor. Substantial avascular scar tissue encountered during revision joint replacement surgery places these cases at an especially high risk of periprosthetic joint infection. A critical pathogenic event in the process of biofilm formation is bacterial adhesion. Prevention of biomaterial-associated infections should be concurrently focused on at least two targets: inhibition of biofilm formation and minimizing local immune response suppression. Current knowledge of antimicrobial surface treatments suitable for prevention of prosthetic joint infection is reviewed. Several surface treatment modalities have been proposed. Minimizing bacterial adhesion, biofilm formation inhibition, and bactericidal approaches are discussed. The ultimate anti-infective surface should be “smart” and responsive to even the lowest bacterial load. While research in this field is promising, there appears to be a great discrepancy between proposed and clinically implemented strategies, and there is urgent need for translational science focusing on this topic.
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36
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Study of epigenetic properties of Poly(HexaMethylene Biguanide) hydrochloride (PHMB). INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2014; 11:8069-92. [PMID: 25111876 PMCID: PMC4143850 DOI: 10.3390/ijerph110808069] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/23/2014] [Revised: 07/01/2014] [Accepted: 07/07/2014] [Indexed: 02/06/2023]
Abstract
Poly(HexaMethylene Biguanide) hydrochloride (PHMB) CAS No. [32289-58-0] is a particularly effective member of the biguanides antiseptic chemical group, and has been in use since the early fifties in numerous applications. It has been proposed that PHMB be classified as a category 3 carcinogen although PHMB is not genotoxic. It has been hypothesized that PHMB may have epigenetic properties effects, including non-genotoxic modifications of DNA bases, DNA methylation and mitogenic cytokine production. These properties have been assessed in vitro using 3 cell types: Caco-2 cells (from a human colon adenocarcinoma) with a non-functional p53 gene. (∆p53: mut p53), N2-A (Neuro-2A cells, mouse neural cells), the brain being a possible target organ in rodents and HepG2 cells (human hepatocellular carcinoma) with functional p53 gene. From the concentration 1 μg/mL up to 20 μg/mL of PHMB, no effect was observed, either growth stimulation or inhibition. Viability testing using neutral red led to an IC 50 of 20–25 μg/mL after treatment with PHMB for 3 h, whereas the MTT test led to IC50 values of 80 μg/mL, 160 μg/mL and 160 μg/mL respectively for HepG2 cells, Neuro-2A cells and Caco-2 cells. PHMB does not induce significant oxidative stress (production of MDA or lipoperoxidation, nor does it induce hydroxylation of DNA (8-OH-dG) and/or its hypermethylation (m5dC), the latter being strongly implicated in DNA replication and regulation and cell division. PHMB does not induce significant production of mitogenic cytokines such as TNF-α (tumor necrosis factor), interleukins (IL-1 alpha), and the transcription factor nuclear factor kappa B (NF-κB) which can cause either apoptosis or stimulate the growth of transformed cells or tumors. Instead, from concentrations of 20 to 100 μg/mL, PHMB kills cells of all types in less than 3 h. The expression of genes involved in the mechanisms of cell death induced by PHMB, including p53, the pro apoptotic gene bax and others, the anti-apoptotic bcl-2 and caspase-3 has been evaluated by RT-PCR. Finally, the status of GAP-junctions (GJIC) in the presence of PHMB has been determined and appeared to not be significantly affected. Taken together the data show that in vitro PHMB does not exhibit clear and remarkable epigenetic properties except a slight increase of some cytokines and transcription factor at higher concentrations at which cell lysis occurs rapidly.
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37
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Harding JL, Reynolds MM. Combating medical device fouling. Trends Biotechnol 2014; 32:140-6. [DOI: 10.1016/j.tibtech.2013.12.004] [Citation(s) in RCA: 138] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2013] [Revised: 12/02/2013] [Accepted: 12/13/2013] [Indexed: 12/24/2022]
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38
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Proliferation and resistance difference of a liver-parasitized myxosporean in two different gynogenetic clones of gibel carp. Parasitol Res 2014; 113:1331-41. [DOI: 10.1007/s00436-014-3772-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2013] [Accepted: 01/10/2014] [Indexed: 10/25/2022]
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39
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Hu Y, Jin J, Han Y, Yin J, Jiang W, Liang H. Study of fibrinogen adsorption on poly(ethylene glycol)-modified surfaces using a quartz crystal microbalance with dissipation and a dual polarization interferometry. RSC Adv 2014. [DOI: 10.1039/c3ra46934d] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
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40
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Induction of the Cpx envelope stress pathway contributes to Escherichia coli tolerance to antimicrobial peptides. Appl Environ Microbiol 2013; 79:7770-9. [PMID: 24096425 DOI: 10.1128/aem.02593-13] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
Antimicrobial peptides produced by multicellular organisms as part of their innate system of defense against microorganisms are currently considered potential alternatives to conventional antibiotics in case of infection by multiresistant bacteria. However, while the mode of action of antimicrobial peptides is relatively well described, resistance mechanisms potentially induced or selected by these peptides are still poorly understood. In this work, we studied the mechanisms of action and resistance potentially induced by ApoEdpL-W, a new antimicrobial peptide derived from human apolipoprotein E. Investigation of the genetic response of Escherichia coli upon exposure to sublethal concentrations of ApoEdpL-W revealed that this antimicrobial peptide triggers activation of RcsCDB, CpxAR, and σ(E) envelope stress pathways. This genetic response is not restricted to ApoEdpL-W, since several other antimicrobial peptides, including polymyxin B, melittin, LL-37, and modified S4 dermaseptin, also activate several E. coli envelope stress pathways. Finally, we demonstrate that induction of the CpxAR two-component system directly contributes to E. coli tolerance toward ApoEdpL-W, polymyxin B, and melittin. These results therefore show that E. coli senses and responds to different antimicrobial peptides by activation of the CpxAR pathway. While this study further extends the understanding of the array of peptide-induced stress signaling systems, it also provides insight into the contribution of Cpx envelope stress pathway to E. coli tolerance to antimicrobial peptides.
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