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Fandiño-Devia E, Santa-González GA, Klaiss-Luna MC, Manrique-Moreno M. Study of the Membrane Activity of the Synthetic Peptide ∆M3 Against Extended-Spectrum β-lactamase Escherichia coli Isolates. J Membr Biol 2024; 257:51-61. [PMID: 38315239 PMCID: PMC11006780 DOI: 10.1007/s00232-024-00306-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2023] [Accepted: 01/03/2024] [Indexed: 02/07/2024]
Abstract
Escherichia coli is the most common microorganism causing nosocomial or community-acquired bacteremia, and extended-spectrum β-lactamase-producing Escherichia coli isolates are identified worldwide with increasing frequency. For this reason, it is necessary to evaluate potential new molecules like antimicrobial peptides. They are recognized for their biological potential which makes them promising candidates in the fight against infections. The goal of this research was to evaluate the potential of the synthetic peptide ΔM3 on several extended-spectrum β-lactamase producing E. coli isolates. The antimicrobial and cytotoxic activity of the peptide was spectrophotometrically determined. Additionally, the capacity of the peptide to interact with the bacterial membrane was monitored by fluorescence microscopy and infrared spectroscopy. The results demonstrated that the synthetic peptide is active against Escherichia coli isolates at concentrations similar to Meropenem. On the other hand, no cytotoxic effect was observed in HaCaT keratinocyte cells even at 10 times the minimal inhibitory concentration. Microscopy results showed a permeabilizing effect of the peptide on the bacteria. The infrared results showed that ΔM3 showed affinity for the lipids of the microorganism's membrane. The results suggest that the ∆M3 interacts with the negatively charged lipids from the E. coli by a disturbing effect on membrane. Finally, the secondary structure experiments of the peptide showed a random structure in solution that did not change during the interaction with the membranes.
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Affiliation(s)
- Estefanía Fandiño-Devia
- Chemistry Institute, Faculty of Exact and Natural Sciences, University of Antioquia, A.A. 1226, Medellin, 050010, Colombia
| | - Gloria A Santa-González
- Grupo de Investigación e Innovación Biomédica, Facultad de Ciencias Exactas y Aplicadas, Instituto Tecnológico Metropolitano, A.A. 54959, Medellín, 050010, Colombia
| | - Maria C Klaiss-Luna
- Chemistry Institute, Faculty of Exact and Natural Sciences, University of Antioquia, A.A. 1226, Medellin, 050010, Colombia
| | - Marcela Manrique-Moreno
- Chemistry Institute, Faculty of Exact and Natural Sciences, University of Antioquia, A.A. 1226, Medellin, 050010, Colombia.
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2
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Tryptophan, more than just an interfacial amino acid in the membrane activity of cationic cell-penetrating and antimicrobial peptides. Q Rev Biophys 2022; 55:e10. [PMID: 35979810 DOI: 10.1017/s0033583522000105] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Trp is unique among the amino acids since it is involved in many different types of noncovalent interactions such as electrostatic and hydrophobic ones, but also in π-π, π-cation, π-anion and π-ion pair interactions. In membranotropic peptides and proteins, Trp locates preferentially at the water-membrane interface. In antimicrobial or cell-penetrating peptides (AMPs and CPPs respectively), Trp is well-known for its strong role in the capacity of these peptides to interact and affect the membrane organisation of both bacteria and animal cells at the level of the lipid bilayer. This essential amino acid can however be involved in other types of interactions, not only with lipids, but also with other membrane partners, that are crucial to understand the functional roles of membranotropic peptides. This review is focused on this latter less known role of Trp and describes in details, both in qualitative and quantitative ways: (i) the physico-chemical properties of Trp; (ii) its effect in CPP internalisation; (iii) its importance in AMP activity; (iv) its role in the interaction of AMPs with glycoconjugates or lipids in bacteria membranes and the consequences on the activity of the peptides; (v) its role in the interaction of CPPs with negatively charged polysaccharides or lipids of animal membranes and the consequences on the activity of the peptides. We intend to bring highlights of the physico-chemical properties of Trp and describe its extensive possibilities of interactions, not only at the well-known level of the lipid bilayer, but with other less considered cell membrane components, such as carbohydrates and the extracellular matrix. The focus on these interactions will allow the reader to reevaluate reported studies. Altogether, our review gathers dedicated studies to show how unique are Trp properties, which should be taken into account to design future membranotropic peptides with expected antimicrobial or cell-penetrating activity.
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3
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Panjla A, Kaul G, Chopra S, Titz A, Verma S. Short Peptides and Their Mimetics as Potent Antibacterial Agents and Antibiotic Adjuvants. ACS Chem Biol 2021; 16:2731-2745. [PMID: 34779605 DOI: 10.1021/acschembio.1c00626] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Antimicrobial resistance (AMR) has been increasing unrelentingly worldwide, thus negatively impacting human health. The discovery and development of novel antibiotics is an urgent unmet need of the hour. However, it has become more challenging, requiring increasingly time-consuming efforts with increased commercial risks. Hence, alternative strategies are urgently needed to potentiate the existing antibiotics. In this context, short cationic peptides or peptide-based antimicrobials that mimic the activity of naturally occurring antimicrobial peptides (AMPs) could overcome the disadvantages of AMPs having evolved as potent antibacterial agents. Besides their potent antibacterial efficacy, short peptide conjugates have also gained attention as potent adjuvants to conventional antibiotics. Such peptide antibiotic combinations have become an increasingly cost-effective therapeutic option to tackle AMR. This Review summarizes the recent progress for peptide-based small molecules as promising antimicrobials and as adjuvants for conventional antibiotics to counter multidrug resistant (MDR) pathogens.
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Affiliation(s)
- Apurva Panjla
- Department of Chemistry, IIT Kanpur, Kanpur-208016, Uttar Pradesh, India
| | - Grace Kaul
- Department of Microbiology, CSIR-Central Drug Research Institute, Lucknow-226031, Uttar Pradesh, India
- AcSIR: Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Sidharth Chopra
- Department of Microbiology, CSIR-Central Drug Research Institute, Lucknow-226031, Uttar Pradesh, India
- AcSIR: Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Alexander Titz
- Chemical Biology of Carbohydrates (CBCH), Helmholtz-Institute for Pharmaceutical Research Saarland (HIPS), Helmholtz Centre for Infection Research, 66123 Saarbrücken, Germany
- Department of Chemistry, Saarland University, 66123 Saarbrücken, Germany
- Deutsches Zentrum für Infektionsforschung (DZIF), 38124, Standort Hannover-Braunschweig, Germany
| | - Sandeep Verma
- Department of Chemistry, IIT Kanpur, Kanpur-208016, Uttar Pradesh, India
- Center for Nanoscience, IIT Kanpur, Kanpur-208016, Uttar Pradesh, India
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Li W, Separovic F, O'Brien-Simpson NM, Wade JD. Chemically modified and conjugated antimicrobial peptides against superbugs. Chem Soc Rev 2021; 50:4932-4973. [PMID: 33710195 DOI: 10.1039/d0cs01026j] [Citation(s) in RCA: 207] [Impact Index Per Article: 69.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Antimicrobial resistance (AMR) is one of the greatest threats to human health that, by 2050, will lead to more deaths from bacterial infections than cancer. New antimicrobial agents, both broad-spectrum and selective, that do not induce AMR are urgently required. Antimicrobial peptides (AMPs) are a novel class of alternatives that possess potent activity against a wide range of Gram-negative and positive bacteria with little or no capacity to induce AMR. This has stimulated substantial chemical development of novel peptide-based antibiotics possessing improved therapeutic index. This review summarises recent synthetic efforts and their impact on analogue design as well as their various applications in AMP development. It includes modifications that have been reported to enhance antimicrobial activity including lipidation, glycosylation and multimerization through to the broad application of novel bio-orthogonal chemistry, as well as perspectives on the direction of future research. The subject area is primarily the development of next-generation antimicrobial agents through selective, rational chemical modification of AMPs. The review further serves as a guide toward the most promising directions in this field to stimulate broad scientific attention, and will lead to new, effective and selective solutions for the several biomedical challenges to which antimicrobial peptidomimetics are being applied.
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Affiliation(s)
- Wenyi Li
- Melbourne Dental School, Centre for Oral Health Research, University of Melbourne, VIC 3010, Australia. and Bio21 Institute, University of Melbourne, VIC 3010, Australia
| | - Frances Separovic
- Bio21 Institute, University of Melbourne, VIC 3010, Australia and School of Chemistry, University of Melbourne, VIC 3010, Australia
| | - Neil M O'Brien-Simpson
- Melbourne Dental School, Centre for Oral Health Research, University of Melbourne, VIC 3010, Australia. and Bio21 Institute, University of Melbourne, VIC 3010, Australia
| | - John D Wade
- School of Chemistry, University of Melbourne, VIC 3010, Australia and The Florey Institute of Neuroscience and Mental Health, University of Melbourne, VIC 3010, Australia.
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Ang QA, Arfan G, Ong CYF, Ng FM, Ong EHQ, Chia CSB. Designing a leucine-rich antibacterial nonapeptide with potent activity against mupirocin-resistant MRSA via a structure-activity relationship study. Chem Biol Drug Des 2021; 97:1185-1193. [PMID: 33754480 DOI: 10.1111/cbdd.13840] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2020] [Revised: 02/19/2021] [Accepted: 03/14/2021] [Indexed: 11/30/2022]
Abstract
Staphylococcus aureus is the main aetiological agent responsible for the majority of human skin infections. Of particular concern is the methicillin-resistant variety, commonly known as MRSA. The extensive use of the first-line topical antibiotic of choice, mupirocin, has inevitably resulted in the emergence of resistant strains, signalling an urgent need for the development of new antibacterials with new mechanisms of action. In this work, we describe how we designed a novel cationic nonapeptide, containing only leucine and two lysine residues, with potent anti-MRSA activity and a rapid bactericidal mode of action. Coupled to a favourable safety profile towards human skin fibroblasts, we believe nonapeptide 11 has high potential for further development as a mupirocin replacement candidate to treat skin infections caused by MRSA.
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Affiliation(s)
- Qi An Ang
- Experimental Drug Development Centre, Agency for Science, Technology and Research (A*STAR), Singapore
| | - Giovinna Arfan
- Experimental Drug Development Centre, Agency for Science, Technology and Research (A*STAR), Singapore
| | - Chu Yang Fann Ong
- Experimental Drug Development Centre, Agency for Science, Technology and Research (A*STAR), Singapore
| | - Fui Mee Ng
- Experimental Drug Development Centre, Agency for Science, Technology and Research (A*STAR), Singapore
| | - Esther H Q Ong
- Experimental Drug Development Centre, Agency for Science, Technology and Research (A*STAR), Singapore
| | - Cheng San Brian Chia
- Experimental Drug Development Centre, Agency for Science, Technology and Research (A*STAR), Singapore
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Wang Y, Wang M, Shan A, Feng X. Avian host defense cathelicidins: structure, expression, biological functions, and potential therapeutic applications. Poult Sci 2020; 99:6434-6445. [PMID: 33248558 PMCID: PMC7704953 DOI: 10.1016/j.psj.2020.09.030] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2020] [Revised: 08/14/2020] [Accepted: 09/11/2020] [Indexed: 12/21/2022] Open
Abstract
Host defense peptides (HDP) are multifunctional effectors of the innate immune system, which has antimicrobial and pleiotropic immunomodulatory functions. Although there is a very sophisticated superposition of adaptive immune systems in vertebrates, this system is still essential. As an important family of HDP, cathelicidins are also known for their broad-spectrum antibacterial activity against bacteria, fungi, and enveloped viruses. It has been found in humans and other species, including cattle, pigs, sheep, goats, chickens, rabbits, and some kind of fish. Among them, cathelicidins in birds were described for the first time in 2005. This review focuses on the structure, biological activities, expression, and regulation of avian cathelicidin, especially main effects of host defense cathelicidin on potential therapeutic applications. According to the results obtained both in vitro and in vivo, good perspectives have been opened for cathelicidin. Nevertheless, further studies are needed to better characterize the mechanisms of action underlying the beneficial effects of cathelicidin as novel therapeutic alternatives to antibiotics.
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Affiliation(s)
- Yingjie Wang
- Institute of Animal Nutrition, Northeast Agricultural University, Harbin 150030, People's Republic of China
| | - Min Wang
- Institute of Animal Nutrition, Northeast Agricultural University, Harbin 150030, People's Republic of China
| | - Anshan Shan
- Institute of Animal Nutrition, Northeast Agricultural University, Harbin 150030, People's Republic of China
| | - Xingjun Feng
- Institute of Animal Nutrition, Northeast Agricultural University, Harbin 150030, People's Republic of China.
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7
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Smirnova MP, Kolodkin NI, Kolobov AA, Afonin VG, Afonina IV, Stefanenko LI, Shpen' VM, Shamova OV, Kolobov AA. Indolicidin analogs with broad-spectrum antimicrobial activity and low hemolytic activity. Peptides 2020; 132:170356. [PMID: 32593681 DOI: 10.1016/j.peptides.2020.170356] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/30/2020] [Revised: 06/23/2020] [Accepted: 06/24/2020] [Indexed: 12/19/2022]
Abstract
To create a broad-spectrum peptide biocide, we synthesized 45 analogs of antimicrobial peptide indolicidin (H-Ile-Leu-Pro-Trp-Lys-Trp-Pro-Trp-Trp-Pro-Trp-Arg-Arg-NH2). Among them the peptides H-Ile-Leu-Pro-(2-Me)Phe-Lys-(2-Me)Phe-Pro-(2-Me)Phe-(2-Me)Phe-Pro-(2-Me)Phe-Arg-Arg-NH2 and HN2-(CH2)10-Ile-Leu-Pro-D-Phe-Lys-D-Phe-Pro-D-Phe-D-Phe-Pro-D-Phe-Arg-Arg-NH2 have the broadest spectrum of antimicrobial activity and the lowest hemolytic activity. They are active against all 11 tested strains of Gram-positive bacteria, Gram-negative bacteria and fungi with MIC50 from 0.9 to 6.1 μg/ml (0.5 to 3.2 μM), being up to 3 times more active than indolicidin, and are at least 1.8 times less hemolytically active than indolicidin (reached the detection limit). These peptides are patented and could be used for further drug development as antimicrobials.
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Affiliation(s)
- M P Smirnova
- Institute of Highly Pure Biopreparations, Saint-Petersburg, Russia; Verta Ltd., Saint-Petersburg, Russia
| | - N I Kolodkin
- Institute of Highly Pure Biopreparations, Saint-Petersburg, Russia; Verta Ltd., Saint-Petersburg, Russia
| | - A A Kolobov
- Institute of Highly Pure Biopreparations, Saint-Petersburg, Russia; Verta Ltd., Saint-Petersburg, Russia
| | - V G Afonin
- Institute of Highly Pure Biopreparations, Saint-Petersburg, Russia; Verta Ltd., Saint-Petersburg, Russia
| | - I V Afonina
- Institute of Highly Pure Biopreparations, Saint-Petersburg, Russia; Verta Ltd., Saint-Petersburg, Russia
| | - L I Stefanenko
- Institute of Highly Pure Biopreparations, Saint-Petersburg, Russia; Verta Ltd., Saint-Petersburg, Russia
| | - V M Shpen'
- Institute of Highly Pure Biopreparations, Saint-Petersburg, Russia; Verta Ltd., Saint-Petersburg, Russia
| | - O V Shamova
- Institute of Experimental Medicine, Saint-Petersburg, Russia
| | - A A Kolobov
- Institute of Highly Pure Biopreparations, Saint-Petersburg, Russia; Verta Ltd., Saint-Petersburg, Russia.
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8
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Lee H, Yang S, Shin SY. Improved Cell Selectivity of Symmetric α‐Helical Peptides Derived From Trp‐Rich Antimicrobial Peptides. B KOREAN CHEM SOC 2020. [DOI: 10.1002/bkcs.12091] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Hyunhee Lee
- Department of Medical Science, Graduate School Chosun University Gwangju 61452 Republic of Korea
| | - Sungtae Yang
- Department of Medical Science, Graduate School Chosun University Gwangju 61452 Republic of Korea
- Department of Microbiology, School of Medicine Chosun University Gwangju 61452 Republic of Korea
| | - Song Yub Shin
- Department of Medical Science, Graduate School Chosun University Gwangju 61452 Republic of Korea
- Department of Cellular and Molecular Medicine School of Medicine, Chosun University Gwangju 61452 Republic of Korea
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9
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Kutepov IV, Lyashev YD. Pharmacological correction of periodontitis using synthetic analogues of indolicidin. RESEARCH RESULTS IN PHARMACOLOGY 2019. [DOI: 10.3897/rrpharmacology.5.38107] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Introduction: The leading role of pathogenic microorganisms in the pathogenesis of periodontitis is beyond doubt. However, the use of antibiotics for periodontitis is associated with a number of problems. Indolicidins have a unique anti-microbial effect. The relevance of the search for new drugs for the treatment of acute periodontitis based on the natural indolicidin peptide becomes obvious.
Materials and methods: The investigation was performed on 320 Wistar male rats, using synthetic analogues of natural indolicidin: No. 7 and No. 8, which were administered intraperitoneally at a dose of 500 µg/kg in a volume of 0.2 ml once a day for 7 days. Periodontitis was simulated in animals according to the method proposed by Volozhin A.I. and Vinogradova S.I.
Results and discussion: The correcting effect of indolicidin analogues on the periodontitis course, was manifested by a decrease in edema and in the relative area of cell infiltrates, a significant increase in the relative area of normal tissue, and a correction of the periodontal composition. The use of indolicidin analogues led to an increase in the functional activity of neutrophils and macrophages, acute phase proteins concentration, a correction of pro-oxidant-antioxidant balance and production of vasoactive substances. The effect of indolicidin analogues was higher than that of lincomycin. The greater effectiveness of peptide No.8 compared to that of No.7 was established.
Conclusion: The investigation opens up the prospects of the synthesis of new antimicrobial drugs on the basis of the synthetic analogues of indolicidin.
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Dwivedi R, Aggarwal P, Bhavesh NS, Kaur KJ. Design of therapeutically improved analogue of the antimicrobial peptide, indolicidin, using a glycosylation strategy. Amino Acids 2019; 51:1443-1460. [PMID: 31485742 DOI: 10.1007/s00726-019-02779-2] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2019] [Accepted: 08/27/2019] [Indexed: 02/01/2023]
Abstract
Indolicidin is a member of cathelicidin family which displays broad spectrum antimicrobial activity. Severe toxicity and aggregation propensity associated with indolicidin pose a huge limitation to its probable therapeutic application. We are reporting the use of glycosylation strategy to design an analogue of indolicidin and subsequently explore structural and functional effects of sugar on it. Our study led to the design of a potent antibacterial glycosylated peptide, [βGlc-T9,K7]indolicidin, which showed decreased toxicity against erythrocytes and macrophage cells and thus a higher therapeutic selectivity. The incorporation of sugar also increased the solubility of the peptide. The mode of bacterial killing, functional stability, LPS binding, and cytokine inhibitory potential of the peptide, however, seemed unaffected upon glycosylation. Absence of significant changes in structure upon glycosylation accounts for the possibly retained functions and mode of action of the peptide. Our report thus presents the designing of an indolicidin analogue with improved therapeutic potential by substituting aromatic amino acid with glycosylated amino acid as a promising strategy for the first time.
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Affiliation(s)
- Rohini Dwivedi
- National Institute of Immunology, Aruna Asaf Ali Marg, New Delhi, 110067, India
| | - Priyanka Aggarwal
- International Centre for Genetic Engineering and Biotechnology, Aruna Asaf Ali Marg, New Delhi, 110067, India
| | - Neel S Bhavesh
- International Centre for Genetic Engineering and Biotechnology, Aruna Asaf Ali Marg, New Delhi, 110067, India
| | - Kanwal J Kaur
- National Institute of Immunology, Aruna Asaf Ali Marg, New Delhi, 110067, India.
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Guo J, Qian Y, Sun B, Sun Z, Chen Z, Mao H, Wang B, Yan F. Antibacterial Amino Acid-Based Poly(ionic liquid) Membranes: Effects of Chirality, Chemical Bonding Type, and Application for MRSA Skin Infections. ACS APPLIED BIO MATERIALS 2019; 2:4418-4426. [DOI: 10.1021/acsabm.9b00619] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Jiangna Guo
- Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application, Department of Polymer Science and Engineering, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China
| | - Yuanmei Qian
- Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application, Department of Polymer Science and Engineering, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China
| | - Bin Sun
- Department of Plastic and Reconstructive Surgery, and Shanghai Key Laboratory of Tissue Engineering, Shanghai Ninth People’s Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200011, China
| | - Zhe Sun
- Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application, Department of Polymer Science and Engineering, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China
| | - Zhengsheng Chen
- Department of Plastic and Reconstructive Surgery, and Shanghai Key Laboratory of Tissue Engineering, Shanghai Ninth People’s Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200011, China
| | - Hailei Mao
- Department of Anesthesiology and Critical Care Medicine, Zhongshan Hospital, Fudan University, Shanghai 200032, China
| | - Bin Wang
- Department of Plastic and Reconstructive Surgery, and Shanghai Key Laboratory of Tissue Engineering, Shanghai Ninth People’s Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200011, China
| | - Feng Yan
- Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application, Department of Polymer Science and Engineering, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China
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Suematsu Y, Kawachi E, Idemoto Y, Matsuo Y, Kuwano T, Kitajima K, Imaizumi S, Kawamura A, Saku K, Uehara Y, Miura SI. Anti-atherosclerotic effects of an improved apolipoprotein A-I mimetic peptide. Int J Cardiol 2019; 297:111-117. [PMID: 31519377 DOI: 10.1016/j.ijcard.2019.08.043] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/29/2019] [Revised: 08/01/2019] [Accepted: 08/20/2019] [Indexed: 01/23/2023]
Abstract
BACKGROUND Apolipoprotein (Apo)A-I is a major protein component of high-density lipoprotein (HDL) that causes cholesterol efflux from peripheral cells through ATP-binding cassette transporter A1 (ABCA1) and the generation of HDL. Furthermore, it has a possible protective function against atherosclerotic cardiovascular disease (ASCVD). We previously developed a novel ApoA-I mimetic peptide without phospholipids (Fukuoka University ApoA-I Mimetic Peptide, FAMP). According to our previous studies, FAMP had an anti-arteriosclerotic effect. Since the required dose and reaction time of conventional FAMP were relatively large and short, respectively, we newly developed an improved FAMP (i-FAMP). METHODS AND RESULTS We synthesized four candidate i-FAMPs, i-FAMP-D1, -D2, -D3 and -D4, and examined which i-FAMP has greater cholesterol efflux capacity than FAMP in A172 human glioblastoma cells transiently transfected with human ABCA1 cDNA. Only i-FAMP-D1 showed significantly greater cholesterol efflux capacity than conventional FAMP. i-FAMP-D1 formed stronger α-helical conformations than FAMP as assessed by circular dichroism spectra. Thus, we selected i-FAMP-D1 for further experiments. i-FAMP-D1 had a greater atheroprotective effect than FAMP in ApoE knockout mice. In addition, i-FAMP-D1 activated cholesterol efflux from macrophage to HDL more strongly than FAMP and increased cholesterol excretion from liver to feces. CONCLUSION These results suggest that i-FAMP-D1 has a stronger anti-atherosclerotic effect than conventional FAMP.
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Affiliation(s)
- Yasunori Suematsu
- Department of Cardiology, Fukuoka University School of Medicine, Japan
| | - Emi Kawachi
- Clinical Research and Ethics Center, Fukuoka University School of Medicine, Japan
| | - Yoshiaki Idemoto
- Department of Cardiology, Fukuoka University School of Medicine, Japan
| | - Yoshino Matsuo
- Department of Cardiology, Fukuoka University School of Medicine, Japan
| | - Takashi Kuwano
- Department of Cardiology, Fukuoka University School of Medicine, Japan
| | - Ken Kitajima
- Department of Cardiology, Fukuoka University School of Medicine, Japan
| | - Satoshi Imaizumi
- Clinical Research and Ethics Center, Fukuoka University School of Medicine, Japan
| | - Akira Kawamura
- Center for Graduate Clinical Practice, Fukuoka University Hospital, Fukuoka, Japan
| | - Keijiro Saku
- General Medical Research Center, Fukuoka University School of Medicine, Japan
| | - Yoshinari Uehara
- Graduate School of Sports and Health Sciences, Fukuoka University, Fukuoka, Japan.
| | - Shin-Ichiro Miura
- Department of Cardiology, Fukuoka University School of Medicine, Japan.
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Aslanli A, Lyagin I, Efremenko E. Charges' interaction in polyelectrolyte (nano)complexing of His 6-OPH with peptides: Unpredictable results due to imperfect or useless concept? Int J Biol Macromol 2019; 140:368-376. [PMID: 31425763 DOI: 10.1016/j.ijbiomac.2019.08.137] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2019] [Revised: 08/07/2019] [Accepted: 08/15/2019] [Indexed: 11/28/2022]
Abstract
Quorum Quenching (QQ) enzymes can be used to prevent bacterial antibiotic resistance by degradation of Quorum Sensing (QS) signaling molecules, for example N-acyl homoserine lactones (AHLs). This paper is aimed at the in silico investigation of the possible combinations of hexahistidine-tagged organophosphorus hydrolase (His6-OPH) with antimicrobial peptides (AMPs) to improve the enzyme activity and, promisingly, stability. This shall help creating a nanosized QQ preparation capable to hydrolyze different AHLs and possessing an antimicrobial activity. To achieve this, binding of AMPs and His6-OPH was simulated by molecular docking, and various interaction parameters (affinity, charge, contact area, etc.) of the generated models were studied. Both anionic and cationic polypeptides were shown to bind to His6-OPH with negligible effect of their charge, that significantly deviates from the charge-to-charge interaction concept. The (nano)complexes of His6-OPH with Indolicidin and Temporin A appear to have the most balanced characteristics which were issued experimentally also.
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Affiliation(s)
- Aysel Aslanli
- Lomonosov Moscow State University, Faculty of Chemistry, 1 Lenin Hills, building 3, Moscow, Russia, 119991
| | - Ilya Lyagin
- Lomonosov Moscow State University, Faculty of Chemistry, 1 Lenin Hills, building 3, Moscow, Russia, 119991
| | - Elena Efremenko
- Lomonosov Moscow State University, Faculty of Chemistry, 1 Lenin Hills, building 3, Moscow, Russia, 119991.
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15
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Vasilchenko AS, Vasilchenko AV, Pashkova TM, Smirnova MP, Kolodkin NI, Manukhov IV, Zavilgelsky GB, Sizova EA, Kartashova OL, Simbirtsev AS, Rogozhin EA, Duskaev GK, Sycheva MV. Antimicrobial activity of the indolicidin-derived novel synthetic peptide In-58. J Pept Sci 2018; 23:855-863. [PMID: 29193518 DOI: 10.1002/psc.3049] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2017] [Revised: 09/28/2017] [Accepted: 10/01/2017] [Indexed: 12/26/2022]
Abstract
Natural peptides with antimicrobial activity are extremely diverse, and peptide synthesis technologies make it possible to significantly improve their properties for specific tasks. Here, we investigate the biological properties of the natural peptide indolicidin and the indolicidin-derived novel synthetic peptide In-58. In-58 was generated by replacing all tryptophan residues on phenylalanine in D-configuration; the α-amino group in the main chain also was modified by unsaturated fatty acid. Compared with indolicidin, In-58 is more bactericidal, more resistant to proteinase K, and less toxic to mammalian cells. Using molecular physics approaches, we characterized the action of In-58 on bacterial cells at the cellular level. Also, we have found that studied peptides damage bacterial membranes. Using the Escherichia coli luminescent biosensor strain MG1655 (pcolD'::lux), we investigated the action of indolicidin and In-58 at the subcellular level. At subinhibitory concentrations, indolicidin and In-58 induced an SOS response. Our data suggest that indolicidin damages the DNA, but bacterial membrane perturbation is its principal mode of action. Copyright © 2017 European Peptide Society and John Wiley & Sons, Ltd.
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Affiliation(s)
- A S Vasilchenko
- Tyumen State University, ul. Volodarsky, 6, Tyumen, 625003, Russia
| | - A V Vasilchenko
- Tyumen State University, ul. Volodarsky, 6, Tyumen, 625003, Russia
| | - T M Pashkova
- Institute of Cellular and Intracellular Symbiosis, Russian Academy of Sciences, ul. Pionerskaya, Orenburg, 11, Russia
| | - M P Smirnova
- Research Institute of Highly Pure Biopreparations, Pudozhsakya str., St. Petersburg, 197110, Russia
| | - N I Kolodkin
- Research Institute of Highly Pure Biopreparations, Pudozhsakya str., St. Petersburg, 197110, Russia
| | - I V Manukhov
- State Research Institute of Genetics and Selection of Industrial Microorganisms, 1, 1st Dorozhny pr., Moscow, 113545, Russia.,Moscow Institute of Physics and Technology (State University), 9 Institutskiy per., Dolgoprudnyi, 141701, Russia
| | - G B Zavilgelsky
- State Research Institute of Genetics and Selection of Industrial Microorganisms, 1, 1st Dorozhny pr., Moscow, 113545, Russia
| | - E A Sizova
- All-Russia Research Institute of Beef Cattle Breeding, Russian Academy of Sciences, ul. Pionerskaya, Orenburg, 11, Russia.,Orenburg State University, Pobedy str., Orenburg, 13, Russia
| | - O L Kartashova
- Institute of Cellular and Intracellular Symbiosis, Russian Academy of Sciences, ul. Pionerskaya, Orenburg, 11, Russia
| | - A S Simbirtsev
- Research Institute of Highly Pure Biopreparations, Pudozhsakya str., St. Petersburg, 197110, Russia
| | - E A Rogozhin
- Shemyakin and Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Science, ul. Miklukho-Maklaya, 16, Orenburg, /10, Russia.,Gause Institute of New Antibiotics, ul. Bolshaya Pirogovskaya, Moscow, 11, Russia
| | - G K Duskaev
- All-Russia Research Institute of Beef Cattle Breeding, Russian Academy of Sciences, ul. Pionerskaya, Orenburg, 11, Russia
| | - M V Sycheva
- Institute of Cellular and Intracellular Symbiosis, Russian Academy of Sciences, ul. Pionerskaya, Orenburg, 11, Russia.,Orenburg State Agrarian University, ul. Chelyuskintsev, Orenburg, 18, Russia
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Retro analog concept: comparative study on physico-chemical and biological properties of selected antimicrobial peptides. Amino Acids 2017; 49:1755-1771. [PMID: 28756544 PMCID: PMC5602100 DOI: 10.1007/s00726-017-2473-7] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2017] [Accepted: 07/20/2017] [Indexed: 01/03/2023]
Abstract
Increasing drug resistance of common pathogens urgently needs discovery of new effective molecules. Antimicrobial peptides are believed to be one of the possible solutions of this problem. One of the approaches for improvement of biological properties is reversion of the sequence (retro analog concept). This research is based on investigation of antimicrobial activity against Gram-positive, Gram-negative bacteria, and fungi, hemolysis of erythrocytes, interpretation of the circular dichroism spectra, measurement of counter-ion content, and assessment of the peptide hydrophobicity and self-assembly using reversed-phase chromatography. The experiments were conducted using the following peptides: aurein 1.2, CAMEL, citropin 1.1, omiganan, pexiganan, temporin A, and their retro analogs. Among the compounds studied, only retro omiganan showed an enhanced antimicrobial and a slightly increased hemolytic activity as compared to parent molecule. Moreover, retro pexiganan exhibited high activity towards Klebsiella pneumoniae, whereas pexiganan was in general more or equally active against the rest of tested microorganisms. Furthermore, the determined activity was closely related to the peptide hydrophobicity. In general, the reduced hemolytic activity correlates with lower antimicrobial activity. The tendency to self-association and helicity fraction in SDS seems to be correlated. The normalized RP-HPLC—temperature profiles of citropin 1.1 and aurein 1.2, revealed an enhanced tendency to self-association than that of their retro analogs.
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17
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Heulot M, Jacquier N, Aeby S, Le Roy D, Roger T, Trofimenko E, Barras D, Greub G, Widmann C. The Anticancer Peptide TAT-RasGAP 317-326 Exerts Broad Antimicrobial Activity. Front Microbiol 2017. [PMID: 28638371 PMCID: PMC5461357 DOI: 10.3389/fmicb.2017.00994] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Antibiotic resistance has become a major health issue. Nosocomial infections and the prevalence of resistant pathogenic bacterial strains are rising steadily. Therefore, there is an urgent need to develop new classes of antibiotics effective on multi-resistant nosocomial pathogenic bacteria. We have previously shown that a cell-permeable peptide derived from the p120 Ras GTPase-activating protein (RasGAP), called TAT-RasGAP317-326, induces cancer cell death, inhibits metastatic progression, and sensitizes tumor cells to various anti-cancer treatments in vitro and in vivo. We here report that TAT-RasGAP317-326 also possesses antimicrobial activity. In vitro, TAT-RasGAP317-326, but not mutated or truncated forms of the peptide, efficiently killed a series of bacteria including Escherichia coli, Acinetobacter baumannii, Staphylococcus aureus, and Pseudomonas aeruginosa. In vivo experiments revealed that TAT-RasGAP317-326 protects mice from lethal E. coli-induced peritonitis if administrated locally at the onset of infection. However, the protective effect was lost when treatment was delayed, likely due to rapid clearance and inadequate biodistribution of the peptide. Peptide modifications might overcome these shortcomings to increase the in vivo efficacy of the compound in the context of the currently limited antimicrobial options.
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Affiliation(s)
- Mathieu Heulot
- Department of Physiology, University of LausanneLausanne, Switzerland
| | - Nicolas Jacquier
- Department of Laboratories, Institute of Microbiology, Lausanne University Hospital and University of LausanneLausanne, Switzerland
| | - Sébastien Aeby
- Department of Laboratories, Institute of Microbiology, Lausanne University Hospital and University of LausanneLausanne, Switzerland
| | - Didier Le Roy
- Infectious Diseases Service, Lausanne University HospitalEpalinges, Switzerland
| | - Thierry Roger
- Infectious Diseases Service, Lausanne University HospitalEpalinges, Switzerland
| | | | - David Barras
- Bioinformatics Core Facility, Swiss Institute of BioinformaticsLausanne, Switzerland
| | - Gilbert Greub
- Department of Laboratories, Institute of Microbiology, Lausanne University Hospital and University of LausanneLausanne, Switzerland
| | - Christian Widmann
- Department of Physiology, University of LausanneLausanne, Switzerland
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18
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Bera S, Ghosh A, Sharma S, Debnath T, Giri B, Bhunia A. Probing the role of Proline in the antimicrobial activity and lipopolysaccharide binding of indolicidin. J Colloid Interface Sci 2015; 452:148-159. [PMID: 25935286 DOI: 10.1016/j.jcis.2015.04.031] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2015] [Revised: 04/12/2015] [Accepted: 04/13/2015] [Indexed: 01/28/2023]
Abstract
HYPOTHESIS Indolicidin (ILPWKWPWWPWRR-NH2), an antimicrobial peptide from bovine neutrophils, possesses significant antibacterial activity. An interesting feature of indolicidin is its unusually high content of Tryptophan and Proline residues. While the involvement of Tryptophan has been studied for its hemolytic and antibacterial activity, little is known about the roles played by Proline in these aspects. We herein investigate the structure and biological activities of indolicidin, where Proline at either one or more of the 3rd, 7th, 10th positions has been replaced by Alanine to better understand its structure and biological function. EXPERIMENTS Structural aspects of Proline residues of indolicidin and its effect on antimicrobial activity were elucidated by replacing Proline residues with Alanine. Minimum inhibitory concentration (MIC) and scanning electron microscopy (SEM) experiments provide substantial evidence for the importance of Proline residues for antimicrobial activity and cell wall disintegration. Binding affinity of the peptides to Lipopolysaccharide (LPS) was investigated using fluorescence spectroscopy and dynamic light scattering (DLS) in conjunction with (31)PNMR spectroscopy and confirmed the disintegration of LPS layer. FINDINGS Our study reveals that Proline residues are necessary for interaction of indolicidin with LPS and establishes the significance of the third and tenth Proline residues for its antimicrobial activity. We believe that the presence of so many Proline residues provides the molecule a selective advantage of adopting different conformations varying from a globular, closed conformation to an open extended conformation, and even to a wedge-shaped conformation, which account for the diverse mechanisms of action of indolicidin.
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Affiliation(s)
- Swapna Bera
- Department of Biophysics, Bose Institute, P-1/12 CIT Scheme VII (M), Kolkata 700054, India
| | - Anirban Ghosh
- Department of Biophysics, Bose Institute, P-1/12 CIT Scheme VII (M), Kolkata 700054, India
| | - Shruti Sharma
- Department of Biophysics, Bose Institute, P-1/12 CIT Scheme VII (M), Kolkata 700054, India
| | - Tanmoy Debnath
- Department of Biophysics, Bose Institute, P-1/12 CIT Scheme VII (M), Kolkata 700054, India
| | - Banabihari Giri
- Central Instrument Facility, Bose Institute, P-1/12 CIT Scheme VII (M), Kolkata 700054, India
| | - Anirban Bhunia
- Department of Biophysics, Bose Institute, P-1/12 CIT Scheme VII (M), Kolkata 700054, India.
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19
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Arias M, Nguyen LT, Kuczynski AM, Lejon T, Vogel HJ. Position-Dependent Influence of the Three Trp Residues on the Membrane Activity of the Antimicrobial Peptide, Tritrpticin. Antibiotics (Basel) 2014; 3:595-616. [PMID: 27025758 PMCID: PMC4790384 DOI: 10.3390/antibiotics3040595] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2014] [Revised: 10/23/2014] [Accepted: 10/23/2014] [Indexed: 01/30/2023] Open
Abstract
Antimicrobial peptides (AMPs) constitute promising candidates for the development of new antibiotics. Among the ever-expanding family of AMPs, tritrpticin has strong antimicrobial activity against a broad range of pathogens. This 13-residue peptide has an unusual amino acid sequence that is almost symmetrical and features three central Trp residues with two Arg residues near each end of the peptide. In this work, the role of the three sequential Trp residues in tritrpticin was studied in a systematic fashion by making a series of synthetic peptides with single-, double- and triple-Trp substitutions to Tyr or Ala. 1H NMR and fluorescence spectroscopy demonstrated the ability of all of the tritrpticin-analog peptides to interact with negatively-charged membranes. Consequently, most tritrpticin analogs exhibited the ability to permeabilize synthetic ePC:ePG (egg-yolk phosphatidylcholine (ePC), egg-yolk phosphatidylglycerol (ePG)) vesicles and live Escherichia coli bacteria. The membrane perturbation characteristics were highly dependent on the location of the Trp residue substitution, with Trp6 being the most important residue and Trp8 the least. The membrane permeabilization activity of the peptides in synthetic and biological membranes was directly correlated with the antimicrobial potency of the peptides against E. coli. These results contribute to the understanding of the role of each of the three Trp residues to the antimicrobial activity of tritrpticin.
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Affiliation(s)
- Mauricio Arias
- Biochemistry Research Group, Department of Biological Sciences, University of Calgary, 2500 University Dr. NW, Calgary, AB T2N 1N4, Canada.
| | - Leonard T Nguyen
- Biochemistry Research Group, Department of Biological Sciences, University of Calgary, 2500 University Dr. NW, Calgary, AB T2N 1N4, Canada.
| | - Andrea M Kuczynski
- Biochemistry Research Group, Department of Biological Sciences, University of Calgary, 2500 University Dr. NW, Calgary, AB T2N 1N4, Canada.
| | - Tore Lejon
- Department of Chemistry, Faculty of Science, UiT-The Artic University of Norway, Tromsø N-9037, Norway.
| | - Hans J Vogel
- Biochemistry Research Group, Department of Biological Sciences, University of Calgary, 2500 University Dr. NW, Calgary, AB T2N 1N4, Canada.
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Ahn M, Rajasekaran G, Gunasekaran P, Ryu EK, Lee GH, Hyun JK, Cheong C, Kim NH, Shin SY, Bang JK. Enhancement of Antibacterial Activity of Short Tryptophan-rich Antimicrobial Peptide Pac-525 by Replacing Trp with His(chx). B KOREAN CHEM SOC 2014. [DOI: 10.5012/bkcs.2014.35.9.2818] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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21
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Ahn M, Jacob B, Gunasekaran P, Murugan RN, Ryu EK, Lee GH, Hyun JK, Cheong C, Kim NH, Shin SY, Bang JK. Poly-lysine peptidomimetics having potent antimicrobial activity without hemolytic activity. Amino Acids 2014; 46:2259-69. [DOI: 10.1007/s00726-014-1778-z] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2014] [Accepted: 06/04/2014] [Indexed: 12/14/2022]
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22
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Joshi KB, Singh P. l-Proline induced self-assembly of indolicidin derived palindromic tripeptide. Tetrahedron Lett 2014. [DOI: 10.1016/j.tetlet.2014.04.090] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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23
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Badosa E, Moiset G, Montesinos L, Talleda M, Bardají E, Feliu L, Planas M, Montesinos E. Derivatives of the antimicrobial peptide BP100 for expression in plant systems. PLoS One 2013; 8:e85515. [PMID: 24376887 PMCID: PMC3871672 DOI: 10.1371/journal.pone.0085515] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2013] [Accepted: 11/27/2013] [Indexed: 11/29/2022] Open
Abstract
Production of antimicrobial peptides in plants constitutes an approach for obtaining them in high amounts. However, their heterologous expression in a practical and efficient manner demands some structural requirements such as a minimum size, the incorporation of retention signals to assure their accumulation in specific tissues, and the presence of protease cleavage amino acids and of target sequences to facilitate peptide detection. Since any sequence modification may influence the biological activity, peptides that will be obtained from the expression must be screened prior to the synthesis of the genes for plant transformation. We report herein a strategy for the modification of the antimicrobial undecapeptide BP100 that allowed the identification of analogues that can be expressed in plants and exhibit optimum biological properties. We prepared 40 analogues obtained by incorporating repeated units of the antimicrobial undecapeptide, fragments of natural peptides, one or two AGPA hinges, a Gly or Ser residue at the N-terminus, and a KDEL fragment and/or the epitope tag54 at the C-terminus. Their antimicrobial, hemolytic and phytotoxic activities, and protease susceptibility were evaluated. Best sequences contained a magainin fragment linked to the antimicrobial undecapeptide through an AGPA hinge. Moreover, since the presence of a KDEL unit or of tag54 did not influence significantly the biological activity, these moieties can be introduced when designing compounds to be retained in the endoplasmic reticulum and detected using a complementary epitope. These findings may contribute to the design of peptides to be expressed in plants.
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Affiliation(s)
- Esther Badosa
- Laboratory of Plant Pathology, Institute of Food and Agricultural Technology-CIDSAV-XaRTA, University of Girona, Campus Montilivi, Girona, Spain
| | - Gemma Moiset
- LIPPSO, Department of Chemistry, University of Girona, Campus Montilivi, Girona, Spain
| | - Laura Montesinos
- Laboratory of Plant Pathology, Institute of Food and Agricultural Technology-CIDSAV-XaRTA, University of Girona, Campus Montilivi, Girona, Spain
| | - Montserrat Talleda
- LIPPSO, Department of Chemistry, University of Girona, Campus Montilivi, Girona, Spain
| | - Eduard Bardají
- LIPPSO, Department of Chemistry, University of Girona, Campus Montilivi, Girona, Spain
| | - Lidia Feliu
- LIPPSO, Department of Chemistry, University of Girona, Campus Montilivi, Girona, Spain
| | - Marta Planas
- LIPPSO, Department of Chemistry, University of Girona, Campus Montilivi, Girona, Spain
| | - Emilio Montesinos
- Laboratory of Plant Pathology, Institute of Food and Agricultural Technology-CIDSAV-XaRTA, University of Girona, Campus Montilivi, Girona, Spain
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Synthesis of side chain N,N'-diaminoalkylated derivatives of basic amino acids for application in solid-phase peptide synthesis. Methods Mol Biol 2013; 1081:61-75. [PMID: 24014434 DOI: 10.1007/978-1-62703-652-8_5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/16/2023]
Abstract
Despite the enormous therapeutic potential, the clinical use of peptides has been limited by their poor bioavailability and low stability under physiological conditions. Hence, efforts have been undertaken to alter peptide structure in ways to improve their pharmacological properties. Inspired by the importance of basic amino acids in biological systems and the remarkable versatility displayed by lysine during the synthesis of complex peptide scaffolds, this chapter describes a simple procedure that enables rapid access to protected N,N'-diaminoalkylated basic amino acid building blocks suitable for standard solid-phase peptide synthesis. This procedure allows preparation of symmetrical, as well as unsymmetrical, dialkylated amino acid derivatives that can be further modified, enhancing their synthetic utility. The suitability of the synthesized branched basic amino acid building blocks for use in standard solid-phase peptide synthesis has been demonstrated by synthesis of an indolicidin analog in which the lysine residue was substituted with its synthetic polyamino derivate. The substitution provided indolicidin analog with increase net positive charge, more ordered secondary structure in biological membranes mimicking conditions, and enhanced antibacterial activity without altering hemolytic activity. Taking into consideration the increasing interest for peptides with unusual structural features due to their improved biological properties, the described synthesis of polyfunctional amino acid building blocks is of particular practical value.
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25
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Uehara Y, Ando S, Yahiro E, Oniki K, Ayaori M, Abe S, Kawachi E, Zhang B, Shioi S, Tanigawa H, Imaizumi S, Miura SI, Saku K. FAMP, a novel apoA-I mimetic peptide, suppresses aortic plaque formation through promotion of biological HDL function in ApoE-deficient mice. J Am Heart Assoc 2013; 2:e000048. [PMID: 23709562 PMCID: PMC3698760 DOI: 10.1161/jaha.113.000048] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
Background Apolipoprotein (apo) A‐I is a major high‐density lipoprotein (HDL) protein that causes cholesterol efflux from peripheral cells through the ATP‐binding cassette transporter A1 (ABCA1), thus generating HDL and reversing the macrophage foam cell phenotype. Pre‐β1 HDL is the smallest subfraction of HDL, which is believed to represent newly formed HDL, and it is the most active acceptor of free cholesterol. Furthermore it has a possible protective function against cardiovascular disease (CVD). We developed a novel apoA‐I mimetic peptide without phospholipids (Fukuoka University ApoA‐I Mimetic Peptide, FAMP). Methods and Results FAMP type 5 (FAMP5) had a high capacity for cholesterol efflux from A172 cells and mouse and human macrophages in vitro, and the efflux was mainly dependent on ABCA1 transporter. Incubation of FAMP5 with human HDL or whole plasma generated small HDL particles, and charged apoA‐I‐rich particles migrated as pre‐β HDL on agarose gel electrophoresis. Sixteen weeks of treatment with FAMP5 significantly suppressed aortic plaque formation (scrambled FAMP, 31.3±8.9% versus high‐dose FAMP5, 16.2±5.0%; P<0.01) and plasma C‐reactive protein and monocyte chemoattractant protein‐1 in apoE‐deficient mice fed a high‐fat diet. In addition, it significantly enhanced HDL‐mediated cholesterol efflux capacity from the mice. Conclusions A newly developed apoA‐I mimetic peptide, FAMP, has an antiatherosclerotic effect through the enhancement of the biological function of HDL. FAMP may have significant atheroprotective potential and prove to be a new therapeutic tool for CVD.
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Abstract
Antimicrobial peptides (AMPs) hold promise to circumvent the emergence of drug resistance occurring in the treatment of bacteria using many conventional antibiotics. Antimicrobial peptidomimetics, which mimic bactericidal mechanisms of AMPs, may overcome the disadvantages of AMPs and become the new generation of antibiotic therapeutics. In this review, some recent examples in the development of antimicrobial peptidomimetics are highlighted. The potential of antimicrobial agents has been demonstrated for therapeutic uses. Meanwhile, perspectives on their further development and applications are also presented.
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27
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Pitteloud JP, Bionda N, Cudic P. Direct access to side chain N,N'-diaminoalkylated derivatives of basic amino acids suitable for solid-phase peptide synthesis. Amino Acids 2012; 44:321-33. [PMID: 22714010 DOI: 10.1007/s00726-012-1336-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2012] [Accepted: 05/29/2012] [Indexed: 12/01/2022]
Abstract
A simple and efficient one-pot procedure that enables rapid access to orthogonally protected N,N'-diaminoalkylated basic amino acid building blocks fully compatible with standard Boc and Fmoc solid-phase peptide synthesis is reported. Described synthetic approach includes double reductive alkylation of N (α)-protected diamino acids with N-protected amino aldehydes in the presence of sodium cyanoborohydride. This approach allows preparation of symmetrical, as well as unsymmetrical, basic amino acid derivatives with branched side-chains that can be further modified, enhancing their synthetic utility. The suitability of the synthesized branched basic amino acid building blocks for use in standard solid-phase peptide synthesis has been demonstrated by synthesis of an indolicidin analogue in which the lysine residue was substituted with the synthetic derivative N (α)-(9H-fluorenyl-9-methoxycarbonyl)-N (β),N (β) '-bis[2-(tert-butoxycarbonylamino)ethyl]-L-2,3-diaminopropionic acid. This substitution resulted in an analogue with more ordered secondary structure in 2,2,2-trifluoroethanol and enhanced antibacterial activity without altering hemolytic activity.
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Affiliation(s)
- Jean-Philippe Pitteloud
- Torrey Pines Institute for Molecular Studies, 11350 SW Village Parkway, Port St Lucie, FL 34987, USA
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28
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Liu Z, Cai Y, Young AW, Totsingan F, Jiwrajka N, Shi Z, Kallenbach NR. OH radical production stimulated by (RW)4D, a synthetic antimicrobial agent and indolicidin. MEDCHEMCOMM 2012. [DOI: 10.1039/c2md20272g] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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29
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Padhee S, Hu Y, Niu Y, Bai G, Wu H, Costanza F, West L, Harrington L, Shaw LN, Cao C, Cai J. Non-hemolytic α-AApeptides as antimicrobial peptidomimetics. Chem Commun (Camb) 2011; 47:9729-31. [PMID: 21779608 DOI: 10.1039/c1cc13684d] [Citation(s) in RCA: 69] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
We report a new class of peptide mimetics, α-AApeptides, that display broad-spectrum activity against both Gram-negative and Gram-positive bacteria and fungi. With non-hemolytic activity, resistance to protease hydrolysis, and easy sequence programmability, α-AApeptides may emerge as a novel class of antibiotics.
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Affiliation(s)
- Shruti Padhee
- Department of Chemistry, University of South Florida, 4202 E. Fowler Ave, Tampa, FL 33620, USA
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30
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Revilla-López G, Rodríguez-Ropero F, Curcó D, Torras J, Calaza MI, Zanuy D, Jiménez AI, Cativiela C, Nussinov R, Alemán C. Integrating the intrinsic conformational preferences of noncoded α-amino acids modified at the peptide bond into the noncoded amino acids database. Proteins 2011; 79:1841-52. [PMID: 21491493 PMCID: PMC3092812 DOI: 10.1002/prot.23009] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2010] [Revised: 01/22/2011] [Accepted: 01/28/2011] [Indexed: 01/16/2023]
Abstract
Recently, we reported a database (Noncoded Amino acids Database; http://recerca.upc.edu/imem/index.htm) that was built to compile information about the intrinsic conformational preferences of nonproteinogenic residues determined by quantum mechanical calculations, as well as bibliographic information about their synthesis, physical and spectroscopic characterization, the experimentally established conformational propensities, and applications (Revilla-López et al., J Phys Chem B 2010;114:7413-7422). The database initially contained the information available for α-tetrasubstituted α-amino acids. In this work, we extend NCAD to three families of compounds, which can be used to engineer peptides and proteins incorporating modifications at the--NHCO--peptide bond. Such families are: N-substituted α-amino acids, thio-α-amino acids, and diamines and diacids used to build retropeptides. The conformational preferences of these compounds have been analyzed and described based on the information captured in the database. In addition, we provide an example of the utility of the database and of the compounds it compiles in protein and peptide engineering. Specifically, the symmetry of a sequence engineered to stabilize the 3(10)-helix with respect to the α-helix has been broken without perturbing significantly the secondary structure through targeted replacements using the information contained in the database.
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Affiliation(s)
- Guillem Revilla-López
- Departament d’Enginyeria Química, E. T. S. d’Enginyeria Industrial de Barcelona, Universitat Politècnica de Catalunya, Diagonal 647, 08028 Barcelona, Spain
| | - Francisco Rodríguez-Ropero
- Departament d’Enginyeria Química, E. T. S. d’Enginyeria Industrial de Barcelona, Universitat Politècnica de Catalunya, Diagonal 647, 08028 Barcelona, Spain
| | - David Curcó
- Departament d’Enginyeria Química, Facultat de Química, Universitat de Barcelona, Martí i Franquès 1, Barcelona E-08028, Spain
| | - Juan Torras
- Departament d’Enginyeria Química, EEI, Universitat Politècnica de Catalunya, Pça Rei 15, Igualada 08700, Spain
| | - M. Isabel Calaza
- Departamento de Química Orgánica, Instituto de Ciencia de Materiales de Aragón, Universidad de Zaragoza – CSIC, 50009 Zaragoza, Spain
| | - David Zanuy
- Departament d’Enginyeria Química, E. T. S. d’Enginyeria Industrial de Barcelona, Universitat Politècnica de Catalunya, Diagonal 647, 08028 Barcelona, Spain
| | - Ana I. Jiménez
- Departamento de Química Orgánica, Instituto de Ciencia de Materiales de Aragón, Universidad de Zaragoza – CSIC, 50009 Zaragoza, Spain
| | - Carlos Cativiela
- Departamento de Química Orgánica, Instituto de Ciencia de Materiales de Aragón, Universidad de Zaragoza – CSIC, 50009 Zaragoza, Spain
| | - Ruth Nussinov
- Basic Science Program, SAIC-Frederick, Inc. Center for Cancer Research Nanobiology Program, NCI, Frederick, MD 21702, USA
- Department of Human Genetics Sackler, Medical School, Tel Aviv University, Tel Aviv 69978, Israel
| | - Carlos Alemán
- Departament d’Enginyeria Química, E. T. S. d’Enginyeria Industrial de Barcelona, Universitat Politècnica de Catalunya, Diagonal 647, 08028 Barcelona, Spain
- Center for Research in Nano-Engineering, Universitat Politècnica de Catalunya, Campus Sud, Edifici C’, C/Pasqual i Vila s/n, Barcelona E-08028, Spain
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Gopal R, Kim YJ, Seo CH, Hahm KS, Park Y. Reversed sequence enhances antimicrobial activity of a synthetic peptide. J Pept Sci 2011; 17:329-34. [DOI: 10.1002/psc.1369] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2010] [Revised: 02/07/2011] [Accepted: 02/08/2011] [Indexed: 11/10/2022]
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Indolicidin action on membrane permeability: Carrier mechanism versus pore formation. BIOCHIMICA ET BIOPHYSICA ACTA-BIOMEMBRANES 2011; 1808:91-7. [DOI: 10.1016/j.bbamem.2010.09.005] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/01/2010] [Revised: 09/07/2010] [Accepted: 09/08/2010] [Indexed: 11/15/2022]
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