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Abdullah SJ, Yan BTS, Palanivelu N, Dhanabal VB, Bifani JP, Bhattacharjya S. Outer-Membrane Permeabilization, LPS Transport Inhibition: Activity, Interactions, and Structures of Thanatin Derived Antimicrobial Peptides. Int J Mol Sci 2024; 25:2122. [PMID: 38396798 PMCID: PMC10888688 DOI: 10.3390/ijms25042122] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2024] [Revised: 01/30/2024] [Accepted: 02/08/2024] [Indexed: 02/25/2024] Open
Abstract
Currently, viable antibiotics available to mitigate infections caused by drug-resistant Gram-negative bacteria are highly limited. Thanatin, a 21-residue-long insect-derived antimicrobial peptide (AMP), is a promising lead molecule for the potential development of novel antibiotics. Thanatin is extremely potent, particularly against the Enterobacter group of Gram-negative pathogens, e.g., E. coli and K. pneumoniae. As a mode of action, cationic thanatin efficiently permeabilizes the LPS-outer membrane and binds to the periplasmic protein LptAm to inhibit outer membrane biogenesis. Here, we have utilized N-terminal truncated 16- and 14-residue peptide fragments of thanatin and investigated structure, activity, and selectivity with correlating modes of action. A designed 16-residue peptide containing D-Lys (dk) named VF16 (V1PIIYCNRRT-dk-KCQRF16) demonstrated killing activity in Gram-negative bacteria. The VF16 peptide did not show any detectable toxicity to the HEK 293T cell line and kidney cell line Hep G2. As a mode of action, VF16 interacted with LPS, permeabilizing the outer membrane and binding to LptAm with high affinity. Atomic-resolution structures of VF16 in complex with LPS revealed cationic and aromatic surfaces involved in outer membrane interactions and permeabilization. Further, analyses of an inactive 14-residue native thanatin peptide (IM14: IIYCNRRTGKCQRM) delineated the requirement of the β-sheet structure in activity and target interactions. Taken together, this work would pave the way for the designing of short analogs of thanatin-based antimicrobials.
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Affiliation(s)
- Swaleeha Jaan Abdullah
- School of Biological Sciences, Nanyang Technological University, Singapore 637551, Singapore; (S.J.A.); (N.P.)
| | - Bernice Tan Siu Yan
- A*Star Infectious Diseases Labs, 8A Biomedical Grove, Immunos, Singapore 138648, Singapore
| | - Nithya Palanivelu
- School of Biological Sciences, Nanyang Technological University, Singapore 637551, Singapore; (S.J.A.); (N.P.)
| | - Vidhya Bharathi Dhanabal
- School of Biological Sciences, Nanyang Technological University, Singapore 637551, Singapore; (S.J.A.); (N.P.)
| | - Juan Pablo Bifani
- A*Star Infectious Diseases Labs, 8A Biomedical Grove, Immunos, Singapore 138648, Singapore
- Department of Microbiology and Immunology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117545, Singapore
| | - Surajit Bhattacharjya
- School of Biological Sciences, Nanyang Technological University, Singapore 637551, Singapore; (S.J.A.); (N.P.)
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Serna N, López-Laguna H, Aceituno P, Rojas-Peña M, Parladé E, Voltà-Durán E, Martínez-Torró C, Sánchez JM, Di Somma A, Carratalá JV, Livieri AL, Ferrer-Miralles N, Vázquez E, Unzueta U, Roher N, Villaverde A. Efficient Delivery of Antimicrobial Peptides in an Innovative, Slow-Release Pharmacological Formulation. Pharmaceutics 2023; 15:2632. [PMID: 38004610 PMCID: PMC10674355 DOI: 10.3390/pharmaceutics15112632] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2023] [Revised: 10/31/2023] [Accepted: 11/07/2023] [Indexed: 11/26/2023] Open
Abstract
Both nanostructure and multivalency enhance the biological activities of antimicrobial peptides (AMPs), whose mechanism of action is cooperative. In addition, the efficacy of a particular AMP should benefit from a steady concentration at the local place of action and, therefore, from a slow release after a dynamic repository. In the context of emerging multi-resistant bacterial infections and the urgent need for novel and effective antimicrobial drugs, we tested these concepts through the engineering of four AMPs into supramolecular complexes as pharmacological entities. For that purpose, GWH1, T22, Pt5, and PaD, produced as GFP or human nidogen-based His-tagged fusion proteins, were engineered as self-assembling oligomeric nanoparticles ranging from 10 to 70 nm and further packaged into nanoparticle-leaking submicron granules. Since these materials slowly release functional nanoparticles during their time-sustained unpacking, they are suitable for use as drug depots in vivo. In this context, a particular AMP version (GWH1-NIDO-H6) was selected for in vivo validation in a zebrafish model of a complex bacterial infection. The GWH1-NIDO-H6-secreting protein granules are protective in zebrafish against infection by the multi-resistant bacterium Stenotrophomonas maltophilia, proving the potential of innovative formulations based on nanostructured and slowly released recombinant AMPs in the fight against bacterial infections.
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Affiliation(s)
- Naroa Serna
- Institut de Biotecnologia i de Biomedicina (IBB), Universitat Autònoma de Barcelona, 08193 Barcelona, Spain; (N.S.); (P.A.); (M.R.-P.); (E.P.); (E.V.-D.); (C.M.-T.); (J.M.S.); (A.D.S.); (J.V.C.); (A.L.L.); (N.F.-M.); (E.V.); (N.R.)
- Departament de Genètica i de Microbiologia, Universitat Autònoma de Barcelona, 08193 Barcelona, Spain;
- Centro de Investigación Biomédica en Red de Bioingeniería, Biomateriales y Nanomedicina, Instituto de Salud Carlos III, 28029 Barcelona, Spain
| | - Hèctor López-Laguna
- Institut de Biotecnologia i de Biomedicina (IBB), Universitat Autònoma de Barcelona, 08193 Barcelona, Spain; (N.S.); (P.A.); (M.R.-P.); (E.P.); (E.V.-D.); (C.M.-T.); (J.M.S.); (A.D.S.); (J.V.C.); (A.L.L.); (N.F.-M.); (E.V.); (N.R.)
- Departament de Genètica i de Microbiologia, Universitat Autònoma de Barcelona, 08193 Barcelona, Spain;
- Centro de Investigación Biomédica en Red de Bioingeniería, Biomateriales y Nanomedicina, Instituto de Salud Carlos III, 28029 Barcelona, Spain
| | - Patricia Aceituno
- Institut de Biotecnologia i de Biomedicina (IBB), Universitat Autònoma de Barcelona, 08193 Barcelona, Spain; (N.S.); (P.A.); (M.R.-P.); (E.P.); (E.V.-D.); (C.M.-T.); (J.M.S.); (A.D.S.); (J.V.C.); (A.L.L.); (N.F.-M.); (E.V.); (N.R.)
- Departament de Biologia Cel·lular, Fisiologia Animal i Immunologia, Universitat Autònoma de Barcelona, 08193 Barcelona, Spain
| | - Mauricio Rojas-Peña
- Institut de Biotecnologia i de Biomedicina (IBB), Universitat Autònoma de Barcelona, 08193 Barcelona, Spain; (N.S.); (P.A.); (M.R.-P.); (E.P.); (E.V.-D.); (C.M.-T.); (J.M.S.); (A.D.S.); (J.V.C.); (A.L.L.); (N.F.-M.); (E.V.); (N.R.)
- Departament de Biologia Cel·lular, Fisiologia Animal i Immunologia, Universitat Autònoma de Barcelona, 08193 Barcelona, Spain
| | - Eloi Parladé
- Institut de Biotecnologia i de Biomedicina (IBB), Universitat Autònoma de Barcelona, 08193 Barcelona, Spain; (N.S.); (P.A.); (M.R.-P.); (E.P.); (E.V.-D.); (C.M.-T.); (J.M.S.); (A.D.S.); (J.V.C.); (A.L.L.); (N.F.-M.); (E.V.); (N.R.)
- Departament de Genètica i de Microbiologia, Universitat Autònoma de Barcelona, 08193 Barcelona, Spain;
- Centro de Investigación Biomédica en Red de Bioingeniería, Biomateriales y Nanomedicina, Instituto de Salud Carlos III, 28029 Barcelona, Spain
| | - Eric Voltà-Durán
- Institut de Biotecnologia i de Biomedicina (IBB), Universitat Autònoma de Barcelona, 08193 Barcelona, Spain; (N.S.); (P.A.); (M.R.-P.); (E.P.); (E.V.-D.); (C.M.-T.); (J.M.S.); (A.D.S.); (J.V.C.); (A.L.L.); (N.F.-M.); (E.V.); (N.R.)
- Departament de Genètica i de Microbiologia, Universitat Autònoma de Barcelona, 08193 Barcelona, Spain;
- Centro de Investigación Biomédica en Red de Bioingeniería, Biomateriales y Nanomedicina, Instituto de Salud Carlos III, 28029 Barcelona, Spain
| | - Carlos Martínez-Torró
- Institut de Biotecnologia i de Biomedicina (IBB), Universitat Autònoma de Barcelona, 08193 Barcelona, Spain; (N.S.); (P.A.); (M.R.-P.); (E.P.); (E.V.-D.); (C.M.-T.); (J.M.S.); (A.D.S.); (J.V.C.); (A.L.L.); (N.F.-M.); (E.V.); (N.R.)
- Departament de Genètica i de Microbiologia, Universitat Autònoma de Barcelona, 08193 Barcelona, Spain;
- Centro de Investigación Biomédica en Red de Bioingeniería, Biomateriales y Nanomedicina, Instituto de Salud Carlos III, 28029 Barcelona, Spain
| | - Julieta M. Sánchez
- Institut de Biotecnologia i de Biomedicina (IBB), Universitat Autònoma de Barcelona, 08193 Barcelona, Spain; (N.S.); (P.A.); (M.R.-P.); (E.P.); (E.V.-D.); (C.M.-T.); (J.M.S.); (A.D.S.); (J.V.C.); (A.L.L.); (N.F.-M.); (E.V.); (N.R.)
- Departament de Genètica i de Microbiologia, Universitat Autònoma de Barcelona, 08193 Barcelona, Spain;
- Centro de Investigación Biomédica en Red de Bioingeniería, Biomateriales y Nanomedicina, Instituto de Salud Carlos III, 28029 Barcelona, Spain
- Instituto de Investigaciones Biológicas y Tecnológicas (IIBYT), (CONICET-Universidad Nacional de Córdoba), ICTA, FCEFyN, UNC. Av. Velez Sarsfield 1611, Córdoba X 5016GCA, Argentina
| | - Angela Di Somma
- Institut de Biotecnologia i de Biomedicina (IBB), Universitat Autònoma de Barcelona, 08193 Barcelona, Spain; (N.S.); (P.A.); (M.R.-P.); (E.P.); (E.V.-D.); (C.M.-T.); (J.M.S.); (A.D.S.); (J.V.C.); (A.L.L.); (N.F.-M.); (E.V.); (N.R.)
| | - Jose Vicente Carratalá
- Institut de Biotecnologia i de Biomedicina (IBB), Universitat Autònoma de Barcelona, 08193 Barcelona, Spain; (N.S.); (P.A.); (M.R.-P.); (E.P.); (E.V.-D.); (C.M.-T.); (J.M.S.); (A.D.S.); (J.V.C.); (A.L.L.); (N.F.-M.); (E.V.); (N.R.)
- Departament de Genètica i de Microbiologia, Universitat Autònoma de Barcelona, 08193 Barcelona, Spain;
- Centro de Investigación Biomédica en Red de Bioingeniería, Biomateriales y Nanomedicina, Instituto de Salud Carlos III, 28029 Barcelona, Spain
| | - Andrea L. Livieri
- Institut de Biotecnologia i de Biomedicina (IBB), Universitat Autònoma de Barcelona, 08193 Barcelona, Spain; (N.S.); (P.A.); (M.R.-P.); (E.P.); (E.V.-D.); (C.M.-T.); (J.M.S.); (A.D.S.); (J.V.C.); (A.L.L.); (N.F.-M.); (E.V.); (N.R.)
| | - Neus Ferrer-Miralles
- Institut de Biotecnologia i de Biomedicina (IBB), Universitat Autònoma de Barcelona, 08193 Barcelona, Spain; (N.S.); (P.A.); (M.R.-P.); (E.P.); (E.V.-D.); (C.M.-T.); (J.M.S.); (A.D.S.); (J.V.C.); (A.L.L.); (N.F.-M.); (E.V.); (N.R.)
- Departament de Genètica i de Microbiologia, Universitat Autònoma de Barcelona, 08193 Barcelona, Spain;
- Centro de Investigación Biomédica en Red de Bioingeniería, Biomateriales y Nanomedicina, Instituto de Salud Carlos III, 28029 Barcelona, Spain
| | - Esther Vázquez
- Institut de Biotecnologia i de Biomedicina (IBB), Universitat Autònoma de Barcelona, 08193 Barcelona, Spain; (N.S.); (P.A.); (M.R.-P.); (E.P.); (E.V.-D.); (C.M.-T.); (J.M.S.); (A.D.S.); (J.V.C.); (A.L.L.); (N.F.-M.); (E.V.); (N.R.)
- Departament de Genètica i de Microbiologia, Universitat Autònoma de Barcelona, 08193 Barcelona, Spain;
- Centro de Investigación Biomédica en Red de Bioingeniería, Biomateriales y Nanomedicina, Instituto de Salud Carlos III, 28029 Barcelona, Spain
| | - Ugutz Unzueta
- Departament de Genètica i de Microbiologia, Universitat Autònoma de Barcelona, 08193 Barcelona, Spain;
- Centro de Investigación Biomédica en Red de Bioingeniería, Biomateriales y Nanomedicina, Instituto de Salud Carlos III, 28029 Barcelona, Spain
- Biomedical Research Institute Sant Pau (IIB Sant Pau), 08041 Barcelona, Spain
| | - Nerea Roher
- Institut de Biotecnologia i de Biomedicina (IBB), Universitat Autònoma de Barcelona, 08193 Barcelona, Spain; (N.S.); (P.A.); (M.R.-P.); (E.P.); (E.V.-D.); (C.M.-T.); (J.M.S.); (A.D.S.); (J.V.C.); (A.L.L.); (N.F.-M.); (E.V.); (N.R.)
- Centro de Investigación Biomédica en Red de Bioingeniería, Biomateriales y Nanomedicina, Instituto de Salud Carlos III, 28029 Barcelona, Spain
- Departament de Biologia Cel·lular, Fisiologia Animal i Immunologia, Universitat Autònoma de Barcelona, 08193 Barcelona, Spain
| | - Antonio Villaverde
- Institut de Biotecnologia i de Biomedicina (IBB), Universitat Autònoma de Barcelona, 08193 Barcelona, Spain; (N.S.); (P.A.); (M.R.-P.); (E.P.); (E.V.-D.); (C.M.-T.); (J.M.S.); (A.D.S.); (J.V.C.); (A.L.L.); (N.F.-M.); (E.V.); (N.R.)
- Departament de Genètica i de Microbiologia, Universitat Autònoma de Barcelona, 08193 Barcelona, Spain;
- Centro de Investigación Biomédica en Red de Bioingeniería, Biomateriales y Nanomedicina, Instituto de Salud Carlos III, 28029 Barcelona, Spain
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3
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Bakare OO, Gokul A, Niekerk LA, Aina O, Abiona A, Barker AM, Basson G, Nkomo M, Otomo L, Keyster M, Klein A. Recent Progress in the Characterization, Synthesis, Delivery Procedures, Treatment Strategies, and Precision of Antimicrobial Peptides. Int J Mol Sci 2023; 24:11864. [PMID: 37511621 PMCID: PMC10380191 DOI: 10.3390/ijms241411864] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2023] [Revised: 07/20/2023] [Accepted: 07/22/2023] [Indexed: 07/30/2023] Open
Abstract
Infectious diseases are constantly evolving to bypass antibiotics or create resistance against them. There is a piercing alarm for the need to improve the design of new effective antimicrobial agents such as antimicrobial peptides which are less prone to resistance and possess high sensitivity. This would guard public health in combating and overcoming stubborn pathogens and mitigate incurable diseases; however, the emergence of antimicrobial peptides' shortcomings ranging from untimely degradation by enzymes to difficulty in the design against specific targets is a major bottleneck in achieving these objectives. This review is aimed at highlighting the recent progress in antimicrobial peptide development in the area of nanotechnology-based delivery, selectivity indices, synthesis and characterization, their doping and coating, and the shortfall of these approaches. This review will raise awareness of antimicrobial peptides as prospective therapeutic agents in the medical and pharmaceutical industries, such as the sensitive treatment of diseases and their utilization. The knowledge from this development would guide the future design of these novel peptides and allow the development of highly specific, sensitive, and accurate antimicrobial peptides to initiate treatment regimens in patients to enable them to have accommodating lifestyles.
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Affiliation(s)
- Olalekan Olanrewaju Bakare
- Department of Biochemistry, Faculty of Basic Medical Sciences, Olabisi Onabanjo University, Sagamu 2002, Nigeria
| | - Arun Gokul
- Department of Plant Sciences, Qwaqwa Campus, University of the Free State, Phuthadithjaba 9866, South Africa
| | - Lee-Ann Niekerk
- Environmental Biotechnology Laboratory, Department of Biotechnology, University of the Western Cape, Bellville 7535, South Africa
| | - Omolola Aina
- Plant Omics Laboratory, Department of Biotechnology, University of the Western Cape, Bellville 7535, South Africa
| | - Ademola Abiona
- Department of Biochemistry, Faculty of Basic Medical Sciences, Olabisi Onabanjo University, Sagamu 2002, Nigeria
| | - Adele Mariska Barker
- Environmental Biotechnology Laboratory, Department of Biotechnology, University of the Western Cape, Bellville 7535, South Africa
| | - Gerhard Basson
- Environmental Biotechnology Laboratory, Department of Biotechnology, University of the Western Cape, Bellville 7535, South Africa
| | - Mbukeni Nkomo
- Department of Botany, H13 Botany Building, University of Zululand, Private Bag X1001, KwaDlangezwa 3886, South Africa
| | - Laetitia Otomo
- Department of Plant Sciences, Qwaqwa Campus, University of the Free State, Phuthadithjaba 9866, South Africa
| | - Marshall Keyster
- Environmental Biotechnology Laboratory, Department of Biotechnology, University of the Western Cape, Bellville 7535, South Africa
| | - Ashwil Klein
- Plant Omics Laboratory, Department of Biotechnology, University of the Western Cape, Bellville 7535, South Africa
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4
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Zhao L, Islam MS, Song P, Zhu L, Dong W. Isolation and Optimization of a Broad-Spectrum Synthetic Antimicrobial Peptide, Ap920-WI, from Arthrobacter sp. H5 for the Biological Control of Plant Diseases. Int J Mol Sci 2023; 24:10598. [PMID: 37445776 DOI: 10.3390/ijms241310598] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2023] [Revised: 06/13/2023] [Accepted: 06/20/2023] [Indexed: 07/15/2023] Open
Abstract
Antimicrobial peptides (AMPs) are naturally occurring molecules found in various organisms that can help to defend against invading microorganisms and reduce the likelihood of drug resistance development. This study focused on the isolation of new AMPs from the genome library of a Gram-positive bacterium called Arthrobacter sp. H5. To achieve this, we used the Bacillus subtilis expression system and employed bioinformatics techniques to optimize and modify the peptides, resulting in the development of a new synthetic antimicrobial peptide (SAMP). Ap920 is expected to be a new antimicrobial peptide with a high positive charge (+12.5). Through optimization, a new synthetic antimicrobial peptide, Ap920-WI, containing only 15 amino acids, was created. Thereafter, the antimicrobial and antifungal activities of Ap920-WI were determined using minimum inhibitory concentration (MIC) and the concentration for 50% of maximal effect (EC50). The Ap920-WI peptide was observed to target the outer membrane of fungal hyphae, leading to inhibition of growth in Rhizoctonia Solani, Sclerotinia sclerotiorum, and Botrytis cinerea. In plants, Ap920-WI showed significant antifungal activity and inhibited the infestation of S. sclerotiorum on rape leaves. Importantly, Ap920-WI was found to be safe for mammalian cells since it did not show any hemolytic activity against sheep red blood cells. Overall, the study found that the new synthetic antimicrobial peptide Ap920-WI exhibits broad-spectrum activity against microorganisms and may offer a new solution for controlling plant diseases, as well as hold potential for drug development.
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Affiliation(s)
- Li Zhao
- Department of Plant Pathology, College of Plant Science and Technology and the Key Lab of Crop Disease, Monitoring & Safety Control in Hubei Province, Huazhong Agricultural University, Wuhan 430070, China
| | - Md Samiul Islam
- Department of Plant Pathology, College of Plant Science and Technology and the Key Lab of Crop Disease, Monitoring & Safety Control in Hubei Province, Huazhong Agricultural University, Wuhan 430070, China
| | - Pei Song
- Department of Plant Pathology, College of Plant Science and Technology and the Key Lab of Crop Disease, Monitoring & Safety Control in Hubei Province, Huazhong Agricultural University, Wuhan 430070, China
| | - Li Zhu
- Department of Plant Pathology, College of Plant Science and Technology and the Key Lab of Crop Disease, Monitoring & Safety Control in Hubei Province, Huazhong Agricultural University, Wuhan 430070, China
| | - Wubei Dong
- Department of Plant Pathology, College of Plant Science and Technology and the Key Lab of Crop Disease, Monitoring & Safety Control in Hubei Province, Huazhong Agricultural University, Wuhan 430070, China
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5
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Galzitskaya OV. Creation of New Antimicrobial Peptides. Int J Mol Sci 2023; 24:ijms24119451. [PMID: 37298402 DOI: 10.3390/ijms24119451] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2023] [Accepted: 05/18/2023] [Indexed: 06/12/2023] Open
Abstract
Antimicrobial peptides (AMPs) are natural compounds that exhibit potent antimicrobial activity against various microorganisms, including bacteria, fungi, and viruses [...].
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Affiliation(s)
- Oxana V Galzitskaya
- Institute of Protein Research, Russian Academy of Sciences, 142290 Pushchino, Russia
- Institute of Theoretical and Experimental Biophysics, Russian Academy of Sciences, 142290 Pushchino, Russia
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6
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Hazam PK, Cheng CC, Lin WC, Hsieh CY, Hsu PH, Chen YR, Li CC, Hsueh PR, Chen JY. Strategic modification of low-activity natural antimicrobial peptides confers antibacterial potential in vitro and in vivo. Eur J Med Chem 2023; 249:115131. [PMID: 36669399 DOI: 10.1016/j.ejmech.2023.115131] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2022] [Revised: 01/09/2023] [Accepted: 01/15/2023] [Indexed: 01/19/2023]
Abstract
Antimicrobial peptides (AMPs) show great promise for clinical applications, but the utility of naturally occurring AMPs is often limited by their stability. Here, we used a rational design approach to improve the characteristics of a pair of inactive peptides, tilapia piscidin 1 and 2 (TP1 and TP2). From each starting peptide, we generated a series of novel derivatives by substituting residues to adjust cationic charge density, percent hydrophobicity and hydrophilicity/hydrophobicity coefficients. This approach yielded a novel peptide, TP2-5 (KKCIAKAILKKAKKLLKKLVNP), that exhibits significant bactericidal potency, low cytotoxicity and high stability. The designed peptide further showed antibiofilm activity, rapid antibacterial action and a low capacity to induce bacterial resistance. Importantly, we also demonstrated that TP2-5 can protect mice in a Vibrio vulnificus-infected wound model. Therefore, our peptide modification strategy successfully generated a novel AMP with high potential for future clinical application.
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Affiliation(s)
- Prakash Kishore Hazam
- Marine Research Station, Institute of Cellular and Organismic Biology, Academia Sinica, 23-10, Dahuen Rd., Jiaushi, Ilan, 262, Taiwan
| | - Chih-Cheng Cheng
- Institute of Fisheries Science, National Taiwan University, 1 Roosevelt Road, Sec. 4, Taipei, 106, Taiwan
| | - Wen-Chun Lin
- Marine Research Station, Institute of Cellular and Organismic Biology, Academia Sinica, 23-10, Dahuen Rd., Jiaushi, Ilan, 262, Taiwan
| | - Chu-Yi Hsieh
- Marine Research Station, Institute of Cellular and Organismic Biology, Academia Sinica, 23-10, Dahuen Rd., Jiaushi, Ilan, 262, Taiwan
| | - Po-Hsien Hsu
- Institute of Fisheries Science, National Taiwan University, 1 Roosevelt Road, Sec. 4, Taipei, 106, Taiwan
| | - Yun-Ru Chen
- Academia Sinica Protein Clinic, Institute of Biological Chemistry, Academia Sinica, 128, Academia Road, Section 2, Nankang District, Taipei, 115, Taiwan
| | - Chao-Chin Li
- Institute of Cellular and Organismic Biology, Academia Sinica, Nankang, Taipei, 115, Taiwan
| | - Po-Ren Hsueh
- Departments of Laboratory Medicine and Internal Medicine, China Medical University Hospital, School of Medicine, China Medical University, Taichung, Taiwan; PhD Program for Aging, School of Medicine, China Medical University, Taichung, Taiwan; Departments of Laboratory Medicine and Internal Medicine, National Taiwan University Hospital, National Taiwan University College of Medicine, Taipei, Taiwan
| | - Jyh-Yih Chen
- Marine Research Station, Institute of Cellular and Organismic Biology, Academia Sinica, 23-10, Dahuen Rd., Jiaushi, Ilan, 262, Taiwan; The iEGG and Animal Biotechnology Center and the Rong Hsing Research Center for Translational Medicine, National Chung Hsing University, Taichung, 402, Taiwan.
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7
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Effect of Newly Synthesized Structures of Peptides on the Stability of the Monolayers Formed. Int J Mol Sci 2023; 24:ijms24054318. [PMID: 36901749 PMCID: PMC10001825 DOI: 10.3390/ijms24054318] [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: 01/17/2023] [Revised: 02/09/2023] [Accepted: 02/13/2023] [Indexed: 02/24/2023] Open
Abstract
The aim of the study was to evaluate the effect of the peptide structure (WKWK)2-KWKWK-NH2, P4 (C12)2-KKKK-NH2, P5 (KWK)2-KWWW-NH2, P6 (KK)2-KWWW-NH2 on their physicochemical properties. The thermogravimetric method (TG/DTG) was used, which made it possible to observe the course of chemical reactions and phase transformations occurring during the heating of solid samples. Based on the DSC curves, the enthalpy of the processes occurring in the peptides was determined. The influence of the chemical structure of this group of compounds on their film-forming properties was determined using the Langmuir-Wilhelmy trough method and was followed by molecular dynamics simulation. Evaluated peptides showed high thermal stability and the first significant mass loss occurred only at about 230 °C and 350 °C. The analysis of the compressibility coefficient of individual peptides indicates that all formed peptide monolayers were in the expanded liquid phase. Their maximum compressibility factor was less than 50.0 mN/m. Its highest value of 42.7 mN/m was achieved in a monolayer made of P4. The results obtained in molecular dynamic simulation indicate that non-polar side chains played an important role in the properties of the P4 monolayer, and the same applies to P5, except that a spherical effect was observed here. A slightly different behavior was observed for the P6 and P2 peptide systems, where the type of amino acids present had an influence. The obtained results indicate that the structure of the peptide affected its physicochemical and layer-forming properties.
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8
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He Q, Yang Z, Zou Z, Qian M, Wang X, Zhang X, Yin Z, Wang J, Ye X, Liu D, Guo M. Combating Escherichia coli O157:H7 with Functionalized Chickpea-Derived Antimicrobial Peptides. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2023; 10:e2205301. [PMID: 36563134 PMCID: PMC9951321 DOI: 10.1002/advs.202205301] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/14/2022] [Revised: 11/30/2022] [Indexed: 06/17/2023]
Abstract
The rapid dissemination of antibiotic resistance accelerates the desire for new antibacterial agents. Here, a class of antimicrobial peptides (AMPs) is designed by modifying the structural parameters of a natural chickpea-derived AMP-Leg2, termed "functionalized chickpea-derived Leg2 antimicrobial peptides" (FCLAPs). Among the FCLAPs, KTA and KTR show superior antibacterial efficacy against the foodborne pathogen Escherichia coli (E. coli) O157:H7 (with MICs in the range of 2.5-4.7 µmol L-1 ) and demonstrate satisfactory feasibility in alleviating E. coli O157:H7-induced intestinal infection. Additionally, the low cytotoxicity along with insusceptibility to antimicrobial resistance increases the potential of FCLAPs as appealing antimicrobials. Combining the multi-omics profiling andpeptide-membrane interaction assays, a unique dual-targeting mode of action is characterized. To specify the antibacterial mechanism, microscopical observations, membrane-related physicochemical properties studies, and mass spectrometry assays are further performed. Data indicate that KTA and KTR induce membrane damage by initially targeting the lipopolysaccharide (LPS), thus promoting the peptides to traverse the outer membrane. Subsequently, the peptides intercalate into the peptidoglycan (PGN) layer, blocking its synthesis, and causing a collapse of membrane structure. These findings altogether imply the great potential of KTA and KTR as promising antibacterial candidates in combating the growing threat of E. coli O157:H7.
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Affiliation(s)
- Qiao He
- College of Biosystems Engineering and Food ScienceNational‐Local Joint Engineering Laboratory of Intelligent Food Technology and EquipmentZhejiang Key Laboratory for Agro‐Food ProcessingZhejiang UniversityHangzhouZhejiang Province310058P. R. China
| | - Zhehao Yang
- College of Biosystems Engineering and Food ScienceNational‐Local Joint Engineering Laboratory of Intelligent Food Technology and EquipmentZhejiang Key Laboratory for Agro‐Food ProcessingZhejiang UniversityHangzhouZhejiang Province310058P. R. China
| | - Zhipeng Zou
- College of Biosystems Engineering and Food ScienceNational‐Local Joint Engineering Laboratory of Intelligent Food Technology and EquipmentZhejiang Key Laboratory for Agro‐Food ProcessingZhejiang UniversityHangzhouZhejiang Province310058P. R. China
| | - Mengyan Qian
- College of Biosystems Engineering and Food ScienceNational‐Local Joint Engineering Laboratory of Intelligent Food Technology and EquipmentZhejiang Key Laboratory for Agro‐Food ProcessingZhejiang UniversityHangzhouZhejiang Province310058P. R. China
| | - Xiaolei Wang
- College of Biosystems Engineering and Food ScienceNational‐Local Joint Engineering Laboratory of Intelligent Food Technology and EquipmentZhejiang Key Laboratory for Agro‐Food ProcessingZhejiang UniversityHangzhouZhejiang Province310058P. R. China
| | - Xinhui Zhang
- College of Biosystems Engineering and Food ScienceNational‐Local Joint Engineering Laboratory of Intelligent Food Technology and EquipmentZhejiang Key Laboratory for Agro‐Food ProcessingZhejiang UniversityHangzhouZhejiang Province310058P. R. China
| | - Zhongping Yin
- Jiangxi Key Laboratory of Natural Products and Functional FoodsJiangxi Agricultural UniversityNanchangJiangxi Province330045P. R. China
| | - Jinhai Wang
- Department of Colorectal SurgeryThe First Affiliated HospitalCollege of MedicineZhejiang UniversityHangzhouZhejiang Province310058P. R. China
| | - Xingqian Ye
- College of Biosystems Engineering and Food ScienceNational‐Local Joint Engineering Laboratory of Intelligent Food Technology and EquipmentZhejiang Key Laboratory for Agro‐Food ProcessingZhejiang UniversityHangzhouZhejiang Province310058P. R. China
- Fuli Institute of Food ScienceZhejiang UniversityHangzhouZhejiang Province310058P. R. China
| | - Donghong Liu
- College of Biosystems Engineering and Food ScienceNational‐Local Joint Engineering Laboratory of Intelligent Food Technology and EquipmentZhejiang Key Laboratory for Agro‐Food ProcessingZhejiang UniversityHangzhouZhejiang Province310058P. R. China
- Fuli Institute of Food ScienceZhejiang UniversityHangzhouZhejiang Province310058P. R. China
| | - Mingming Guo
- College of Biosystems Engineering and Food ScienceNational‐Local Joint Engineering Laboratory of Intelligent Food Technology and EquipmentZhejiang Key Laboratory for Agro‐Food ProcessingZhejiang UniversityHangzhouZhejiang Province310058P. R. China
- Fuli Institute of Food ScienceZhejiang UniversityHangzhouZhejiang Province310058P. R. China
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9
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Fathi F, Ghobeh M, H Shirazi F, Tabarzad M. Design and Evaluation of a Novel Anti-microbial Peptide from Cathelicidin-2: Selectively Active Against Acinetobacter baumannii. IRANIAN JOURNAL OF PHARMACEUTICAL RESEARCH : IJPR 2023; 22:e141920. [PMID: 38435443 PMCID: PMC10909124 DOI: 10.5812/ijpr-141920] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/10/2023] [Revised: 11/05/2023] [Accepted: 11/16/2023] [Indexed: 03/05/2024]
Abstract
Background Infections caused by pathogenic microorganisms have increased the need for hospital care and have thus represented a public health problem and a significant financial burden. Classical treatments consisting of traditional antibiotics face several challenges today. Anti-microbial peptides (AMPs) are a conserved characteristic of the innate immune response among different animal species to defend against pathogenic microorganisms. Objectives In this study, a new peptide sequence (mCHTL131-140) was designed using the in silico approach. Methods Cathelicidin-2 (UniprotID: Q2IAL7) was used as a potential antimicrobial protein, and a novel 10 - 12 amino acids sequence AMP was designed using bioinformatics tools and the AMP databases. Then, the anti-bacterial, anti-biofilm, and anti-fungal properties of the peptide, as well as its hemolytic activity and cytotoxicity towards human fibroblast (HDF) cells, were investigated in vitro. Results Online bioinformatics tools indicated that the peptide sequence could have anti-bacterial, anti-viral, anti-fungal, and anti-biofilm properties with little hemolytic properties. The experimental tests confirmed that mCHTL131-140 exhibited the best anti-bacterial properties against Acinetobacter baumannii and had fair anti-fungal properties. Besides, it did not cause red blood cell lysis and showed no cytotoxicity towards HDF cells. Conclusions In general, the designed peptide can be considered a promising AMP to control hospital-acquired infections by A. baumannii.
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Affiliation(s)
- Fariba Fathi
- Department of Biology, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - Maryam Ghobeh
- Department of Biology, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - Farshad H Shirazi
- Department of Toxicology and Pharmacology, School of Pharmacy, Shahid Beheshti University of Medical Sciences, Tehran, Iran
- Pharmaceutical Sciences Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Maryam Tabarzad
- Protein Technology Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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10
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Sinha S, Dhanabal VB, Manivannen VL, Cappiello F, Tan SM, Bhattacharjya S. Ultra-Short Cyclized β-Boomerang Peptides: Structures, Interactions with Lipopolysaccharide, Antibiotic Potentiator and Wound Healing. Int J Mol Sci 2022; 24:ijms24010263. [PMID: 36613707 PMCID: PMC9820106 DOI: 10.3390/ijms24010263] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2022] [Revised: 12/20/2022] [Accepted: 12/21/2022] [Indexed: 12/28/2022] Open
Abstract
Many antibiotics are ineffective in killing Gram-negative bacteria due to the permeability barrier of the outer-membrane LPS. Infections caused by multi-drug-resistant Gram-negative pathogens require new antibiotics, which are often difficult to develop. Antibiotic potentiators disrupt outer-membrane LPS and can assist the entry of large-scaffold antibiotics to the bacterial targets. In this work, we designed a backbone-cyclized ultra-short, six-amino-acid-long (WKRKRY) peptide, termed cWY6 from LPS binding motif of β-boomerang bactericidal peptides. The cWY6 peptide does not exhibit any antimicrobial activity; however, it is able to permeabilize the LPS outer membrane. Our results demonstrate the antibiotic potentiator activity in the designed cWY6 peptide for several conventional antibiotics (vancomycin, rifampicin, erythromycin, novobiocin and azithromycin). Remarkably, the short cWY6 peptide exhibits wound-healing activity in in vitro assays. NMR, computational docking and biophysical studies describe the atomic-resolution structure of the peptide in complex with LPS and mode of action in disrupting the outer membrane. The dual activities of cWY6 peptide hold high promise for further translation to therapeutics.
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Affiliation(s)
- Sheetal Sinha
- School of Biological Sciences, Nanyang Technological University, 60 Nanyang Drive, Singapore 637551, Singapore
- Advanced Environmental Biotechnology Centre, Nanyang Environment and Water Research Institute, Nanyang Technological University, 1 Cleantech Loop, Singapore 637141, Singapore
- Interdisciplinary Graduate School, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, Singapore
| | - Vidhya Bharathi Dhanabal
- School of Biological Sciences, Nanyang Technological University, 60 Nanyang Drive, Singapore 637551, Singapore
| | - Veronica Lavanya Manivannen
- School of Biological Sciences, Nanyang Technological University, 60 Nanyang Drive, Singapore 637551, Singapore
| | - Floriana Cappiello
- Department of Biochemical Sciences, Laboratory Affiliated to Istituto Pasteur Italia-Fondazione Cenci Bolognetti, Sapienza University of Rome, 00185 Rome, Italy
| | - Suet-Mien Tan
- School of Biological Sciences, Nanyang Technological University, 60 Nanyang Drive, Singapore 637551, Singapore
| | - Surajit Bhattacharjya
- School of Biological Sciences, Nanyang Technological University, 60 Nanyang Drive, Singapore 637551, Singapore
- Correspondence:
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11
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Zhao J, Ge G, Huang Y, Hou Y, Hu SQ. Butelase 1-Mediated Enzymatic Cyclization of Antimicrobial Peptides: Improvements on Stability and Bioactivity. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2022; 70:15869-15878. [PMID: 36471508 DOI: 10.1021/acs.jafc.2c06588] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Antimicrobial peptides (AMPs) have broad-spectrum antibacterial properties and safety as food preservatives, whereas the stability and antibacterial activity require improvement. Here, the "head-to-tail" cyclization of linear AMP GKE was catalyzed by butelase 1, which resulted in an improved pronouncedly antibacterial effect. Cell morphology and propidium iodide uptake revealed that the increased membrane permeability was one of the bacteriostatic mechanisms of GKE and could be enhanced after cyclization. As cyclic GKE (cGKE) exhibited more stability than the linear counterpart under the microorganism culture environment, the increase in effective bacteriostatic concentration should be a reason for the superior antibacterial effect. Moreover, cGKE exhibited the ordered secondary structure, while GKE possessed a similar structure only in sodium dodecyl sulfate micelles. The structure was also beneficial to improve the antibacterial activity caused by the increased affinity of cGKE to the membranes. Overall, butelase 1-mediated cyclization is a promising strategy for enhancing the antibacterial activity of linear AMPs.
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Affiliation(s)
- Jinsong Zhao
- Overseas Expertise Introduction Center for Discipline Innovation of Food Nutrition and Human Health (111 Center), School of Food Science and Engineering, South China University of Technology, Guangzhou 510640, China
| | - Ge Ge
- Beijing Food Safety Monitoring and Risk Assessment Center, Beijing 100094, China
| | - Yanbo Huang
- State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou, Guangdong 510640, China
| | - Yi Hou
- State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou, Guangdong 510640, China
| | - Song-Qing Hu
- Overseas Expertise Introduction Center for Discipline Innovation of Food Nutrition and Human Health (111 Center), School of Food Science and Engineering, South China University of Technology, Guangzhou 510640, China
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12
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Ning H, Zhang J, Wang Y, Lin H, Wang J. Development of highly efficient artilysins against Vibrio parahaemolyticus via virtual screening assisted by molecular docking. Food Control 2022. [DOI: 10.1016/j.foodcont.2022.109521] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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13
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Peptides Isolated from Amphibian Skin Secretions with Emphasis on Antimicrobial Peptides. Toxins (Basel) 2022; 14:toxins14100722. [PMID: 36287990 PMCID: PMC9607450 DOI: 10.3390/toxins14100722] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2022] [Revised: 10/07/2022] [Accepted: 10/19/2022] [Indexed: 11/19/2022] Open
Abstract
The skin of amphibians is a tissue with biological functions, such as defense, respiration, and excretion. In recent years, researchers have discovered a large number of peptides in the skin secretions of amphibians, including antimicrobial peptides, antioxidant peptides, bradykinins, insulin-releasing peptides, and other peptides. This review focuses on the origin, primary structure, secondary structure, length, and functions of peptides secreted from amphibians' skin. We hope that this review will provide further information and promote the further study of amphibian skin secretions, in order to provide reference for expanding the research and application of amphibian bioactive peptides.
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14
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Talapko J, Meštrović T, Juzbašić M, Tomas M, Erić S, Horvat Aleksijević L, Bekić S, Schwarz D, Matić S, Neuberg M, Škrlec I. Antimicrobial Peptides-Mechanisms of Action, Antimicrobial Effects and Clinical Applications. Antibiotics (Basel) 2022; 11:antibiotics11101417. [PMID: 36290075 PMCID: PMC9598582 DOI: 10.3390/antibiotics11101417] [Citation(s) in RCA: 34] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2022] [Revised: 10/13/2022] [Accepted: 10/14/2022] [Indexed: 11/07/2022] Open
Abstract
The growing emergence of antimicrobial resistance represents a global problem that not only influences healthcare systems but also has grave implications for political and economic processes. As the discovery of novel antimicrobial agents is lagging, one of the solutions is innovative therapeutic options that would expand our armamentarium against this hazard. Compounds of interest in many such studies are antimicrobial peptides (AMPs), which actually represent the host's first line of defense against pathogens and are involved in innate immunity. They have a broad range of antimicrobial activity against Gram-negative and Gram-positive bacteria, fungi, and viruses, with specific mechanisms of action utilized by different AMPs. Coupled with a lower propensity for resistance development, it is becoming clear that AMPs can be seen as emerging and very promising candidates for more pervasive usage in the treatment of infectious diseases. However, their use in quotidian clinical practice is not without challenges. In this review, we aimed to summarize state-of-the-art evidence on the structure and mechanisms of action of AMPs, as well as to provide detailed information on their antimicrobial activity. We also aimed to present contemporary evidence of clinical trials and application of AMPs and highlight their use beyond infectious diseases and potential challenges that may arise with their increasing availability.
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Affiliation(s)
- Jasminka Talapko
- Faculty of Dental Medicine and Health, Josip Juraj Strossmayer University of Osijek, 31000 Osijek, Croatia
- Correspondence: (J.T.); (I.Š.)
| | - Tomislav Meštrović
- University Centre Varaždin, University North, 42000 Varaždin, Croatia
- Institute for Health Metrics and Evaluation, University of Washington, 3980 15th Ave. NE, Seattle, WA 98195, USA
| | - Martina Juzbašić
- Faculty of Dental Medicine and Health, Josip Juraj Strossmayer University of Osijek, 31000 Osijek, Croatia
| | - Matej Tomas
- Faculty of Dental Medicine and Health, Josip Juraj Strossmayer University of Osijek, 31000 Osijek, Croatia
| | - Suzana Erić
- Faculty of Medicine, Josip Juraj Strossmayer University of Osijek, Josipa Huttlera 4, 31000 Osijek, Croatia
| | - Lorena Horvat Aleksijević
- Faculty of Dental Medicine and Health, Josip Juraj Strossmayer University of Osijek, 31000 Osijek, Croatia
| | - Sanja Bekić
- Faculty of Medicine, Josip Juraj Strossmayer University of Osijek, Josipa Huttlera 4, 31000 Osijek, Croatia
- Family Medicine Practice, 31000 Osijek, Croatia
| | - Dragan Schwarz
- Faculty of Dental Medicine and Health, Josip Juraj Strossmayer University of Osijek, 31000 Osijek, Croatia
| | - Suzana Matić
- Faculty of Medicine, Josip Juraj Strossmayer University of Osijek, Josipa Huttlera 4, 31000 Osijek, Croatia
| | - Marijana Neuberg
- University Centre Varaždin, University North, 42000 Varaždin, Croatia
| | - Ivana Škrlec
- Faculty of Dental Medicine and Health, Josip Juraj Strossmayer University of Osijek, 31000 Osijek, Croatia
- Correspondence: (J.T.); (I.Š.)
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15
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Chou S, Zhang S, Guo H, Chang YF, Zhao W, Mou X. Targeted Antimicrobial Agents as Potential Tools for Modulating the Gut Microbiome. Front Microbiol 2022; 13:879207. [PMID: 35875544 PMCID: PMC9302920 DOI: 10.3389/fmicb.2022.879207] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2022] [Accepted: 06/13/2022] [Indexed: 12/11/2022] Open
Abstract
The gut microbiome plays a pivotal role in maintaining the health of the hosts; however, there is accumulating evidence that certain bacteria in the host, termed pathobionts, play roles in the progression of diseases. Although antibiotics can be used to eradicate unwanted bacteria, the side effects of antibiotic treatment lead to a great need for more targeted antimicrobial agents as tools to modulate the microbiome more precisely. Herein, we reviewed narrow-spectrum antibiotics naturally made by plants and microorganisms, followed by more targeted antibiotic agents including synthetic peptides, phage, and targeted drug delivery systems, from the perspective of using them as potential tools for modulating the gut microbiome for favorable effects on the health of the host. Given the emerging discoveries on pathobionts and the increasing knowledge on targeted antimicrobial agents reviewed in this article, we anticipate targeted antimicrobial agents will emerge as a new generation of a drug to treat microbiome-involved diseases.
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Affiliation(s)
- Shuli Chou
- Center for Infection and Immunity Studies, School of Medicine, Shenzhen Campus of Sun Yat-sen University, Shenzhen, China
| | - Shiqing Zhang
- Center for Infection and Immunity Studies, School of Medicine, Shenzhen Campus of Sun Yat-sen University, Shenzhen, China
| | - Huating Guo
- Center for Infection and Immunity Studies, School of Medicine, Shenzhen Campus of Sun Yat-sen University, Shenzhen, China
| | - Yung-fu Chang
- Department of Population Medicine and Diagnostic Sciences, College of Veterinary Medicine, Cornell University, Ithaca, NY, United States
| | - Wenjing Zhao
- Center for Infection and Immunity Studies, School of Medicine, Shenzhen Campus of Sun Yat-sen University, Shenzhen, China
- *Correspondence: Wenjing Zhao, ;
| | - Xiangyu Mou
- Center for Infection and Immunity Studies, School of Medicine, Shenzhen Campus of Sun Yat-sen University, Shenzhen, China
- Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Diseases, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
- Xiangyu Mou,
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16
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Priyamvada P, Debroy R, Anbarasu A, Ramaiah S. A comprehensive review on genomics, systems biology and structural biology approaches for combating antimicrobial resistance in ESKAPE pathogens: computational tools and recent advancements. World J Microbiol Biotechnol 2022; 38:153. [PMID: 35788443 DOI: 10.1007/s11274-022-03343-z] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2022] [Accepted: 06/21/2022] [Indexed: 12/11/2022]
Abstract
In recent decades, antimicrobial resistance has been augmented as a global concern to public health owing to the global spread of multidrug-resistant strains from different ESKAPE pathogens. This alarming trend and the lack of new antibiotics with novel modes of action in the pipeline necessitate the development of non-antibiotic ways to treat illnesses caused by these isolates. In molecular biology, computational approaches have become crucial tools, particularly in one of the most challenging areas of multidrug resistance. The rapid advancements in bioinformatics have led to a plethora of computational approaches involving genomics, systems biology, and structural biology currently gaining momentum among molecular biologists since they can be useful and provide valuable information on the complex mechanisms of AMR research in ESKAPE pathogens. These computational approaches would be helpful in elucidating the AMR mechanisms, identifying important hub genes/proteins, and their promising targets together with their interactions with important drug targets, which is a crucial step in drug discovery. Therefore, the present review aims to provide holistic information on currently employed bioinformatic tools and their application in the discovery of multifunctional novel therapeutic drugs to combat the current problem of AMR in ESKAPE pathogens. The review also summarizes the recent advancement in the AMR research in ESKAPE pathogens utilizing the in silico approaches.
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Affiliation(s)
- P Priyamvada
- Medical and Biological Computing Laboratory, School of Biosciences and Technology (SBST), Vellore Institute of Technology (VIT), 632014, Vellore, India.,Department of Bio-Sciences, SBST, VIT, 632014, Vellore, India
| | - Reetika Debroy
- Medical and Biological Computing Laboratory, School of Biosciences and Technology (SBST), Vellore Institute of Technology (VIT), 632014, Vellore, India.,Department of Bio-Medical Sciences, SBST, VIT, 632014, Vellore, India
| | - Anand Anbarasu
- Medical and Biological Computing Laboratory, School of Biosciences and Technology (SBST), Vellore Institute of Technology (VIT), 632014, Vellore, India.,Department of Biotechnology, SBST, VIT, 632014, Vellore, India
| | - Sudha Ramaiah
- Medical and Biological Computing Laboratory, School of Biosciences and Technology (SBST), Vellore Institute of Technology (VIT), 632014, Vellore, India. .,Department of Bio-Sciences, SBST, VIT, 632014, Vellore, India. .,School of Biosciences and Technology VIT, 632014, Vellore, Tamil Nadu, India.
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17
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Souza E Silva P, Ferreira MA, de Moraes LFR, de Barros E, Preza SLE, Cardoso MH, Franco OL, Migliolo L. Synthetic peptides bioinspired in temporin-PTa with antibacterial and antibiofilm activity. Chem Biol Drug Des 2022; 100:51-63. [PMID: 35377553 DOI: 10.1111/cbdd.14052] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2021] [Revised: 03/15/2022] [Accepted: 03/31/2022] [Indexed: 12/25/2022]
Abstract
Several antimicrobial peptides (AMPs) have been reported in amphibian toxins, as temporin-PTa from Hylarana picturata. The amino acid distribution within a helical structure of AMPs favors the design of new bioactive peptides. Therefore, this work reports the rational design of two new synthetic peptides denominated Hp-MAP1 and Hp-MAP2 derived from temporin-PTa. These peptides present an amphipathic helix with positive charges of +4 and +5, hydrophobic moment (<µH>) of 0.66 and 0.72 and hydrophobicity (<H>) of 0.49 and 0.41, respectively. Hp-MAP1 and Hp-MAP2 displayed in vitro activity against Gram-negative and Gram-positive bacteria from 2.8 to 92 µM, without presenting hemolytic effects. Molecular dynamics simulation suggested that the parent and designed temporin-like peptides lack structural stability in an aqueous solution. By contrast, α-helical structures were predicted in hydrophobic and anionic environments. Additionally, the peptides were simulated on mimetic membranes composed of anionic and neutral phospholipids 1,2-dipalmitoylsn-glycerol-3-phosphatidylglycerol (DPPG-anionic), 1,2-dipalmitoyl-sn-lyco-3 phosphatidylethanolamine (DPPE-neutral). When in contact with DPPG/DPPE (90:10) and DPPG/DPPE (50:50) temporin-PTa, Hp-MAP1 and Hp-MAP2 established interactions guided by hydrogen and saline bounds. Therefore, the findings described here reveal that the optimization of the amphipathic α-helical cationic peptides Hp-MAP1 and Hp-MAP2 enabled the generation of new synthetic antimicrobial agents to combat pathogenic microorganisms.
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Affiliation(s)
- Patrícia Souza E Silva
- S-Inova Biotech, Programa de Pós-Graduação em Biotecnologia, Universidade Católica Dom Bosco, Campo Grande, Brazil
| | - Marcos Antonio Ferreira
- Programa de Pós-Graduação em Biologia Celular e Molecular, Universidade Federal da Paraíba, João Pessoa, Brazil
| | | | - Elizângela de Barros
- S-Inova Biotech, Programa de Pós-Graduação em Biotecnologia, Universidade Católica Dom Bosco, Campo Grande, Brazil
| | | | - Marlon Henrique Cardoso
- S-Inova Biotech, Programa de Pós-Graduação em Biotecnologia, Universidade Católica Dom Bosco, Campo Grande, Brazil.,Programa de Pós-Graduação em Biotecnologia e Ciências Genômicas, Universidade Católica de Brasília, Brasília, Brazil
| | - Octávio Luiz Franco
- S-Inova Biotech, Programa de Pós-Graduação em Biotecnologia, Universidade Católica Dom Bosco, Campo Grande, Brazil.,Programa de Pós-Graduação em Biotecnologia e Ciências Genômicas, Universidade Católica de Brasília, Brasília, Brazil.,Centro de Análises Proteômicas e Bioquímicas, Universidade Católica de Brasília, Brasília, Brazil
| | - Ludovico Migliolo
- S-Inova Biotech, Programa de Pós-Graduação em Biotecnologia, Universidade Católica Dom Bosco, Campo Grande, Brazil.,Programa de Pós-Graduação em Biologia Celular e Molecular, Universidade Federal da Paraíba, João Pessoa, Brazil.,Programa de Pós-Graduação em Bioquímica, Universidade Federal do Rio Grande do Norte, Natal, Brazil
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18
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Ferguson PM, Clarke M, Manzo G, Hind CK, Clifford M, Sutton JM, Lorenz CD, Phoenix DA, Mason AJ. Temporin B Forms Hetero-Oligomers with Temporin L, Modifies Its Membrane Activity, and Increases the Cooperativity of Its Antibacterial Pharmacodynamic Profile. Biochemistry 2022; 61:1029-1040. [PMID: 35609188 PMCID: PMC9178791 DOI: 10.1021/acs.biochem.1c00762] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
![]()
The pharmacodynamic
profile of antimicrobial peptides (AMPs) and
their in vivo synergy are two factors that are thought
to restrict resistance evolution and ensure their conservation. The
frog Rana temporaria secretes a family of closely
related AMPs, temporins A–L, as an effective chemical dermal
defense. The antibacterial potency of temporin L has been shown to
increase synergistically in combination with both temporins B and
A, but this is modest. Here we show that the less potent temporin
B enhances the cooperativity of the in vitro antibacterial
activity of the more potent temporin L against EMRSA-15 and that this
may be associated with an altered interaction with the bacterial plasma
membrane, a feature critical for the antibacterial activity of most
AMPs. Addition of buforin II, a histone H2A fragment, can further
increase the cooperativity. Molecular dynamics simulations indicate
temporins B and L readily form hetero-oligomers in models of Gram-positive
bacterial plasma membranes. Patch-clamp studies show transmembrane
ion conductance is triggered with lower amounts of both peptides and
more quickly when used in combination, but conductance is of a lower
amplitude and pores are smaller. Temporin B may therefore act by forming
temporin L/B hetero-oligomers that are more effective than temporin
L homo-oligomers at bacterial killing and/or by reducing the probability
of the latter forming until a threshold concentration is reached.
Exploration of the mechanism of synergy between AMPs isolated from
the same organism may therefore yield antibiotic combinations with
advantageous pharmacodynamic properties.
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Affiliation(s)
- Philip M Ferguson
- Institute of Pharmaceutical Science, School of Cancer & Pharmaceutical Science, King's College London, Franklin-Wilkins Building, 150 Stamford Street, London SE1 9NH, United Kingdom
| | - Maria Clarke
- Institute of Pharmaceutical Science, School of Cancer & Pharmaceutical Science, King's College London, Franklin-Wilkins Building, 150 Stamford Street, London SE1 9NH, United Kingdom
| | - Giorgia Manzo
- Institute of Pharmaceutical Science, School of Cancer & Pharmaceutical Science, King's College London, Franklin-Wilkins Building, 150 Stamford Street, London SE1 9NH, United Kingdom
| | - Charlotte K Hind
- Technology Development Group, UKHSA, Salisbury SP4 0JG, United Kingdom
| | - Melanie Clifford
- Technology Development Group, UKHSA, Salisbury SP4 0JG, United Kingdom
| | - J Mark Sutton
- Institute of Pharmaceutical Science, School of Cancer & Pharmaceutical Science, King's College London, Franklin-Wilkins Building, 150 Stamford Street, London SE1 9NH, United Kingdom.,Technology Development Group, UKHSA, Salisbury SP4 0JG, United Kingdom
| | - Christian D Lorenz
- Department of Physics, King's College London, London WC2R 2LS, United Kingdom
| | - David A Phoenix
- School of Applied Science, London South Bank University, 103 Borough Road, London SE1 0AA, United Kingdom
| | - A James Mason
- Institute of Pharmaceutical Science, School of Cancer & Pharmaceutical Science, King's College London, Franklin-Wilkins Building, 150 Stamford Street, London SE1 9NH, United Kingdom
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19
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Atomic-Resolution Structures and Mode of Action of Clinically Relevant Antimicrobial Peptides. Int J Mol Sci 2022; 23:ijms23094558. [PMID: 35562950 PMCID: PMC9100274 DOI: 10.3390/ijms23094558] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2022] [Revised: 04/18/2022] [Accepted: 04/18/2022] [Indexed: 02/01/2023] Open
Abstract
Global rise of infections and deaths caused by drug-resistant bacterial pathogens are among the unmet medical needs. In an age of drying pipeline of novel antibiotics to treat bacterial infections, antimicrobial peptides (AMPs) are proven to be valid therapeutics modalities. Direct in vivo applications of many AMPs could be challenging; however, works are demonstrating encouraging results for some of them. In this review article, we discussed 3-D structures of potent AMPs e.g., polymyxin, thanatin, MSI, protegrin, OMPTA in complex with bacterial targets and their mode of actions. Studies on human peptide LL37 and de novo-designed peptides are also discussed. We have focused on AMPs which are effective against drug-resistant Gram-negative bacteria. Since treatment options for the infections caused by super bugs of Gram-negative bacteria are now extremely limited. We also summarize some of the pertinent challenges in the field of clinical trials of AMPs.
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20
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In Vitro & In Vivo Studies on Identifying and Designing Temporin-1CEh from the Skin Secretion of Rana chensinensis as the Optimised Antibacterial Prototype Drug. Pharmaceutics 2022; 14:pharmaceutics14030604. [PMID: 35335979 PMCID: PMC8949600 DOI: 10.3390/pharmaceutics14030604] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2022] [Revised: 02/25/2022] [Accepted: 03/04/2022] [Indexed: 11/17/2022] Open
Abstract
Amphibian skin secretion is an ideal source of antimicrobial peptides that are difficult to induce drug resistance to due to their membrane-targeting mechanism as a new treatment scheme. In this study, a natural antimicrobial peptide Temporin-1CEh was identified by molecular cloning and mass spectrometry from the skin secretions of the Chinese forest frog (Rana chensinensis). Through the study of the structure and biological activity, it was found that Temporin-1CEh was a helical peptide from the Temporin family, and possessed good anti-Gram-positive bacteria activity through the mechanism of membrane destruction. Seven analogues were further designed to obtain broad-spectrum antimicrobial activity and higher stability in different physiological conditions. The results showed that T1CEh-KKPWW showed potent antibacterial activity with significantly increasing the activity against Gram-negative bacteria in vitro and in vivo with low haemolysis. In addition, T1CEh-KKPWW2 showed high sensitivity to the pH, serum or salts conditions, which applied a branched structure to allow the active units of the peptide to accumulate. Even though the haemolytic activity was increased, the stable antibacterial activity made this novel analogue meet the conditions to become a potential candidate in future antimicrobial and antibiofilm applications.
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21
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Sinha S, Bhattacharjya S. NMR Structure and Localization of the Host Defense Peptide ThanatinM21F in Zwitterionic Dodecylphosphocholine Micelle: Implications in Antimicrobial and Hemolytic Activity. J Membr Biol 2022; 255:151-160. [PMID: 35257227 DOI: 10.1007/s00232-022-00223-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2022] [Accepted: 02/19/2022] [Indexed: 11/25/2022]
Abstract
Non-hemolytic antimicrobial peptides (AMPs) are vital lead molecules for the designing and development of peptide-based antibiotics. Thanatin a 21-amino acid long single disulfide bonded AMP is known to be highly non-hemolytic with a limited toxicity to human cells and model animals. Thanatin demonstrates a potent antibacterial activity against multidrug-resistant Gram-negative pathogens. A single mutated variant of thanatin replaced last residue Met21 to Phe or thanatin M21F has recently been found to be more active compared to the native peptide. In order to gain mechanistic insights toward bacterial cell lysis versus non-hemolysis, here, we report atomic resolution structure and mode insertion of thanatinM21F reconstituted into zwitterionic detergent micelle by use of solution NMR spectroscopy. The 3D structure of thanatinM21F in DPC micelle is defined by an anti-parallel β-sheet between residues I9-F21 with a central cationic loop, residues N12-R14. PRE NMR studies revealed hydrophobic core residues of thanatinM21F are deeply inserted in the DPC micelle, while residues at the extended N-terminal half of the peptide are appeared to be mostly surface localized. Marked structural differences of thanatin and thanatinM21F in negatively charged LPS and DPC micelle could be correlated with non-hemolytic and antibacterial activity.
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Affiliation(s)
- Sheetal Sinha
- School of Biological Sciences, Nanyang Technological University, 60 Nanyang Drive, Singapore, 637551, Singapore
- Interdisciplinary Graduate School, Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798, Singapore
- Advanced Environmental Biotechnology Centre, Nanyang Environment and Water Research Institute, Nanyang Technological University, 1 Cleantech Loop, Singapore, 637141, Singapore
| | - Surajit Bhattacharjya
- School of Biological Sciences, Nanyang Technological University, 60 Nanyang Drive, Singapore, 637551, Singapore.
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22
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Dassanayake RP, Porter TJ, Samorodnitsky D, Falkenberg SM, Nicholson EM, Tatum FM, Briggs RE, Palmer MV, Casas E. Comparative study of antibacterial activity and stability of D-enantiomeric and L-enantiomeric bovine NK-lysin peptide NK2A. Biochem Biophys Res Commun 2022; 595:76-81. [DOI: 10.1016/j.bbrc.2022.01.071] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2021] [Accepted: 01/18/2022] [Indexed: 11/25/2022]
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23
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Sinha S, Dhanabal VB, Sperandeo P, Polissi A, Bhattacharjya S. Linking dual mode of action of host defense antimicrobial peptide thanatin: Structures, lipopolysaccharide and LptA m binding of designed analogs. BIOCHIMICA ET BIOPHYSICA ACTA. BIOMEMBRANES 2022; 1864:183839. [PMID: 34915021 DOI: 10.1016/j.bbamem.2021.183839] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/10/2021] [Revised: 12/02/2021] [Accepted: 12/06/2021] [Indexed: 06/14/2023]
Abstract
At present, antibiotics options to cure infections caused by drug resistant Gram-negative pathogens are highly inadequate. LPS outer membrane, proteins involved in LPS transport and biosynthesis pathways are vital targets. Thanatin, an insect derived 21-residue long antimicrobial peptide may be exploited for the development of effective antibiotics against Gram-negative bacteria. As a mode of bacterial cell killing, thanatin disrupts LPS outer membrane and inhibits LPS transport by binding to the periplasmic protein LptAm. Here, we report structure-activity correlation of thanatin and analogs for the purpose of rational design. These analogs of thanatin are investigated, by NMR, ITC and fluorescence, to correlate structure, antibacterial activity and binding with LPS and LptAm, a truncated monomeric variant. Our results demonstrate that an analog thanatin M21F exhibits superior antibacterial activity. In LPS interaction analyses, thanatin M21F demonstrate high affinity binding to outer membrane LPS. The atomic resolution structure of thanatin M21F in LPS micelle reveals four stranded β-sheet structure in a dimeric topology whereby the sidechain of aromatic residues Y10, F21 sustained mutual packing at the interface. Strikingly, LptAm binding affinity of thanatin M21F has been significantly increased with an estimated Kd ~ 0.73 nM vs 13 nM for thanatin. Further, atomic resolution structures and interactions of Ala based thanatin analogs define plausible correlations with antibacterial activity and LPS, LptAm interactions. Taken together, the current work provides a frame-work for the designing of thanatin based potent antimicrobial peptides for the treatment of drug resistance Gram-negative bacteria.
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Affiliation(s)
- Sheetal Sinha
- School of Biological Sciences, Nanyang Technological University, 60 Nanyang Drive, Singapore 637551, Singapore; Interdisciplinary Graduate School, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, Singapore; Advanced Environmental Biotechnology Centre, Nanyang Environment and Water Research Institute, Nanyang Technological University, 1 Cleantech Loop, Singapore 637141, Singapore
| | - Vidhya Bharathi Dhanabal
- School of Biological Sciences, Nanyang Technological University, 60 Nanyang Drive, Singapore 637551, Singapore
| | - Paola Sperandeo
- Dept. of Pharmacological and Biomolecular Sciences, University of Milano, Via Balzaretti 9, 20133 Milano, Italy
| | - Alessandra Polissi
- Dept. of Pharmacological and Biomolecular Sciences, University of Milano, Via Balzaretti 9, 20133 Milano, Italy
| | - Surajit Bhattacharjya
- School of Biological Sciences, Nanyang Technological University, 60 Nanyang Drive, Singapore 637551, Singapore.
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24
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Ye Z, Wang S, Xu Y, Zhang J, Yan W. Enhanced Inhibition of Drug-Resistant Escherichia coli by Tetracycline Hydrochloride-Loaded Multipore Mesoporous Silica Nanoparticles. Molecules 2022; 27:molecules27041218. [PMID: 35209005 PMCID: PMC8877189 DOI: 10.3390/molecules27041218] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2022] [Revised: 02/02/2022] [Accepted: 02/04/2022] [Indexed: 02/01/2023] Open
Abstract
Drug-resistant bacterial infections exhibit a major threat to public health. Thus, exploring a novel antibacterial with efficient inhibition is urgently needed. Herein, this paper describes three types of MSNs (MSNs-FC2-R1, MSNs-FC2-R0.75, MSNs-FC2-R0.5) with controllable pore size (4–6 nm) and particle size (30–90 nm) that were successfully prepared. The MSNs were loaded with tetracycline hydrochloride (TCH) for effective inhibition of Escherichia coli (ATCC25922) and TCH-resistant Escherichia coli (MQ776). Results showed that the loading capacity of TCH in three types of MSNs was as high as over 500 mg/g, and the cumulative release was less than 33% in 60 h. The inhibitory rate of MSNs-FC2-R0.5 loaded with TCH against E. coli and drug-resistant E. coli reached 99.9% and 92.9% at the concentration of MIC, respectively, compared with the other two types of MSNs or free TCH. Modified MSNs in our study showed a great application for long-term bacterial growth inhibition.
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25
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Host Defense Peptides: Dual Antimicrobial and Immunomodulatory Action. Int J Mol Sci 2021; 22:ijms222011172. [PMID: 34681833 PMCID: PMC8538224 DOI: 10.3390/ijms222011172] [Citation(s) in RCA: 41] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2021] [Revised: 10/08/2021] [Accepted: 10/13/2021] [Indexed: 12/14/2022] Open
Abstract
The rapid rise of multidrug-resistant (MDR) bacteria has once again caused bacterial infections to become a global health concern. Antimicrobial peptides (AMPs), also known as host defense peptides (HDPs), offer a viable solution to these pathogens due to their diverse mechanisms of actions, which include direct killing as well as immunomodulatory properties (e.g., anti-inflammatory activity). HDPs may hence provide a more robust treatment of bacterial infections. In this review, the advent of and the mechanisms that lead to antibiotic resistance will be described. HDP mechanisms of antibacterial and immunomodulatory action will be presented, with specific examples of how the HDP aurein 2.2 and a few of its derivatives, namely peptide 73 and cG4L73, function. Finally, resistance that may arise from a broader use of HDPs in a clinical setting and methods to improve biocompatibility will be briefly discussed.
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26
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Santos‐Filho NA, Righetto GM, Pereira MR, Piccoli JP, Almeida LMT, Leal TC, Camargo ILBC, Cilli EM. Effect of C‐terminal and N‐terminal dimerization and alanine scanning on antibacterial activity of the analogs of the peptide
p‐BthTX‐I. Pept Sci (Hoboken) 2021. [DOI: 10.1002/pep2.24243] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
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27
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Yang Q, Li Y, Tuohuti P, Qin Z, Zhang Z, Zhao W, Su B. Advances in the Development of Biomaterials for Endotoxin Adsorption in Sepsis. Front Bioeng Biotechnol 2021; 9:699418. [PMID: 34395405 PMCID: PMC8361450 DOI: 10.3389/fbioe.2021.699418] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2021] [Accepted: 06/29/2021] [Indexed: 02/05/2023] Open
Abstract
Sepsis, a life-threatening and intractable disease without any specific treatment, is activated by endotoxin. Some attempts at removing endotoxin to treat sepsis from the blood circulation using different hemoperfusion cartridges have been proposed recently, but they have failed to reduce the mortality of severe septic patients. This review summarizes the latest advances in the development of endotoxin adsorbents. In particular, we highlight two critical parameters for endotoxin adsorbents when they are applied in blood purification: the dissociation constant and the maximum adsorption capacity. We also discuss potential challenges and research directions for the future development of endotoxin adsorbents.
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Affiliation(s)
- Qinbo Yang
- Department of Nephrology, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, China
| | - Yupei Li
- Department of Nephrology, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, China.,Disaster Medicine Center, Institute for Disaster Management and Reconstruction, Sichuan University, Chengdu, China
| | | | - Zheng Qin
- Department of Nephrology, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, China
| | - Zhuyun Zhang
- Department of Nephrology, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, China
| | - Weifeng Zhao
- State Key Laboratory of Polymer Materials Engineering, College of Polymer Science and Engineering, Sichuan University, Chengdu, China.,Med-X Center for Materials, Sichuan University, Chengdu, China
| | - Baihai Su
- Department of Nephrology, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, China.,Disaster Medicine Center, Institute for Disaster Management and Reconstruction, Sichuan University, Chengdu, China.,West China School of Medicine, Sichuan University, Chengdu, China.,Med-X Center for Materials, Sichuan University, Chengdu, China.,The First People's Hospital of Shuangliu District, Chengdu, China
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28
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Marrazzo P, Pizzuti V, Zia S, Sargenti A, Gazzola D, Roda B, Bonsi L, Alviano F. Microfluidic Tools for Enhanced Characterization of Therapeutic Stem Cells and Prediction of Their Potential Antimicrobial Secretome. Antibiotics (Basel) 2021; 10:750. [PMID: 34206190 PMCID: PMC8300685 DOI: 10.3390/antibiotics10070750] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2021] [Revised: 06/11/2021] [Accepted: 06/18/2021] [Indexed: 02/06/2023] Open
Abstract
Antibiotic resistance is creating enormous attention on the development of new antibiotic-free therapy strategies for bacterial diseases. Mesenchymal stromal stem cells (MSCs) are the most promising candidates in current clinical trials and included in several cell-therapy protocols. Together with the well-known immunomodulatory and regenerative potential of the MSC secretome, these cells have shown direct and indirect anti-bacterial effects. However, the low reproducibility and standardization of MSCs from different sources are the current limitations prior to the purification of cell-free secreted antimicrobial peptides and exosomes. In order to improve MSC characterization, novel label-free functional tests, evaluating the biophysical properties of the cells, will be advantageous for their cell profiling, population sorting, and quality control. We discuss the potential of emerging microfluidic technologies providing new insights into density, shape, and size of live cells, starting from heterogeneous or 3D cultured samples. The prospective application of these technologies to studying MSC populations may contribute to developing new biopharmaceutical strategies with a view to naturally overcoming bacterial defense mechanisms.
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Affiliation(s)
- Pasquale Marrazzo
- Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna, 40126 Bologna, Italy; (V.P.); (L.B.); (F.A.)
| | - Valeria Pizzuti
- Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna, 40126 Bologna, Italy; (V.P.); (L.B.); (F.A.)
| | - Silvia Zia
- Stem Sel S.r.l., 40127 Bologna, Italy; (S.Z.); (B.R.)
| | | | - Daniele Gazzola
- Cell Dynamics i.S.r.l., 40129 Bologna, Italy; (A.S.); (D.G.)
| | - Barbara Roda
- Stem Sel S.r.l., 40127 Bologna, Italy; (S.Z.); (B.R.)
- Department of Chemistry “G. Ciamician”, University of Bologna, 40126 Bologna, Italy
| | - Laura Bonsi
- Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna, 40126 Bologna, Italy; (V.P.); (L.B.); (F.A.)
| | - Francesco Alviano
- Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna, 40126 Bologna, Italy; (V.P.); (L.B.); (F.A.)
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29
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Moretta A, Scieuzo C, Petrone AM, Salvia R, Manniello MD, Franco A, Lucchetti D, Vassallo A, Vogel H, Sgambato A, Falabella P. Antimicrobial Peptides: A New Hope in Biomedical and Pharmaceutical Fields. Front Cell Infect Microbiol 2021; 11:668632. [PMID: 34195099 PMCID: PMC8238046 DOI: 10.3389/fcimb.2021.668632] [Citation(s) in RCA: 166] [Impact Index Per Article: 55.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2021] [Accepted: 05/10/2021] [Indexed: 12/14/2022] Open
Abstract
Antibiotics are essential drugs used to treat pathogenic bacteria, but their prolonged use contributes to the development and spread of drug-resistant microorganisms. Antibiotic resistance is a serious challenge and has led to the need for new alternative molecules less prone to bacterial resistance. Antimicrobial peptides (AMPs) have aroused great interest as potential next-generation antibiotics, since they are bioactive small proteins, naturally produced by all living organisms, and representing the first line of defense against fungi, viruses and bacteria. AMPs are commonly classified according to their sources, which are represented by microorganisms, plants and animals, as well as to their secondary structure, their biosynthesis and their mechanism of action. They find application in different fields such as agriculture, food industry and medicine, on which we focused our attention in this review. Particularly, we examined AMP potential applicability in wound healing, skin infections and metabolic syndrome, considering their ability to act as potential Angiotensin-Converting Enzyme I and pancreatic lipase inhibitory peptides as well as antioxidant peptides. Moreover, we argued about the pharmacokinetic and pharmacodynamic approaches to develop new antibiotics, the drug development strategies and the formulation approaches which need to be taken into account in developing clinically suitable AMP applications.
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Affiliation(s)
- Antonio Moretta
- Department of Sciences, University of Basilicata, Potenza, Italy
| | - Carmen Scieuzo
- Department of Sciences, University of Basilicata, Potenza, Italy
- Spinoff XFlies s.r.l, University of Basilicata, Potenza, Italy
| | | | - Rosanna Salvia
- Department of Sciences, University of Basilicata, Potenza, Italy
- Spinoff XFlies s.r.l, University of Basilicata, Potenza, Italy
| | | | - Antonio Franco
- Department of Sciences, University of Basilicata, Potenza, Italy
- Spinoff XFlies s.r.l, University of Basilicata, Potenza, Italy
| | - Donatella Lucchetti
- Department of Translational Medicine and Surgery, Università Cattolica del Sacro Cuore, Rome, Italy
| | - Antonio Vassallo
- Department of Sciences, University of Basilicata, Potenza, Italy
| | - Heiko Vogel
- Department of Entomology, Max Planck Institute for Chemical Ecology, Jena, Germany
| | - Alessandro Sgambato
- Department of Translational Medicine and Surgery, Università Cattolica del Sacro Cuore, Rome, Italy
- Centro di Riferimento Oncologico della Basilicata (IRCCS-CROB), Rionero in Vulture, Italy
| | - Patrizia Falabella
- Department of Sciences, University of Basilicata, Potenza, Italy
- Spinoff XFlies s.r.l, University of Basilicata, Potenza, Italy
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30
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Fu R, Rooney MT, Zhang R, Cotten ML. Coordination of Redox Ions within a Membrane-Binding Peptide: A Tale of Aromatic Rings. J Phys Chem Lett 2021; 12:4392-4399. [PMID: 33939920 DOI: 10.1021/acs.jpclett.1c00636] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
The amino-terminal-copper-and-nickel-binding (ATCUN) motif, a tripeptide sequence ending with a histidine, confers important functions to proteins and peptides. Few high-resolution studies have been performed on the ATCUN motifs of membrane-associated proteins and peptides, limiting our understanding of how they stabilize Cu2+/Ni2+ in membranes. Here, we leverage solid-state NMR to investigate metal-binding to piscidin-1 (P1), a host-defense peptide featuring F1F2H3 as its ATCUN motif. Bound to redox ions, P1 chemically and physically damages pathogenic cell membranes. We design 13C/15N correlation experiments to detect and assign the deprotonated nitrogens produced and/or shifted by Ni2+-binding. Occupying multiple chemical states in P1-apo, H3 and the neighboring H4 respond to metalation by populating only the τ-tautomer. H3, as a proximal histidine, directly coordinates the metal, compared to the distal H4. Density functional theory calculations reflect this noncanonical arrangement and point toward cation-π interactions between the F1/F2/H4 aromatic rings and metal. These structural findings, which are relevant to other ATCUN-containing membrane peptides, could help design new therapeutics and materials for use in the areas of drug-resistant bacteria, neurological disorders, and biomedical imaging.
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Affiliation(s)
- Riqiang Fu
- National High Magnetic Field Laboratory, 1800 East Paul Dirac Drive, Tallahassee, Florida 32310, United States
| | - Mary T Rooney
- Department of Applied Science, William & Mary, Williamsburg, Virginia 23185, United States
| | - Rongfu Zhang
- National High Magnetic Field Laboratory, 1800 East Paul Dirac Drive, Tallahassee, Florida 32310, United States
- Department of Chemistry and Biochemistry, Florida State University, Tallahassee, Florida 32306, United States
| | - Myriam L Cotten
- Department of Applied Science, William & Mary, Williamsburg, Virginia 23185, United States
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31
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Chen X, Pan D, Chen Y. The drug resistance of multidrug-resistant bacterial organisms in pediatric pneumonia patients. Am J Transl Res 2021; 13:3309-3315. [PMID: 34017503 PMCID: PMC8129425] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2020] [Accepted: 12/23/2020] [Indexed: 06/12/2023]
Abstract
OBJECTIVE This study aimed to investigate the distribution of multidrug-resistant organisms in pediatric patients with infectious pneumonia and to analyze their resistance and risk factors. METHODS Pediatric patients infected with five MDROs (MRSA, MDR-PA, MDRAB, ESBL KP, and ESBL E. coli) and five sensitive bacteria (MSSA, PA, AB, KP, and E. coli) were recruited as the study cohort. The distribution of the MDROs and the risk factors for MDRO-infected pneumonia were investigated. The two groups' treatment costs, hospitalization times, and prognoses were compared. RESULTS A total of 219 children were included, including 3 cases of mixed infections with MDRO and sensitive bacteria (1.37%), 110 cases of MDRO infections (50.23%), and 106 cases of sensitive bacterial infections (48.40%). Imipramine was sensitive to MDR-PA, MDRAB, ESBL KP, and ESBL E. coli, and vancomycin was sensitive to MRSA. A logistic regression model and a multifactorial analysis showed that ICU treatment, mechanical ventilation, arterial and venous intubation, fiberoptic bronchoscopy, concomitant chronic lung disease, and chronic cardiovascular disease were the independent risk factors for MDRO (P < 0.05). The hospitalization times, the treatment costs, and the 30-day mortality rate of the children in the MDRO group were significantly higher than they were in the children infected with sensitive bacteria (P < 0.05). CONCLUSION Vancomycin or imipenem may result in good clinical outcomes in children treated in the ICU subject to mechanical ventilation, arterial and venous intubation, fiberoptic bronchoscopy, the overuse of antimicrobial drugs, and children with concomitant chronic lung disease or chronic cardiovascular disease.
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Affiliation(s)
- Xianbo Chen
- Department of Pediatrics, Wenling Maternal and Child Health HospitalWenling City, Zhejiang Province, China
| | - Danfeng Pan
- Department of Pediatrics, The First People’s Hospital of WenlingWenling City, Zhejiang Province, China
| | - Yongzheng Chen
- Department of Pediatrics, Wenling Maternal and Child Health HospitalWenling City, Zhejiang Province, China
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32
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Shi J, Chen C, Wang D, Tong Z, Wang Z, Liu Y. Amphipathic Peptide Antibiotics with Potent Activity against Multidrug-Resistant Pathogens. Pharmaceutics 2021; 13:438. [PMID: 33804947 PMCID: PMC8063935 DOI: 10.3390/pharmaceutics13040438] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2021] [Revised: 03/15/2021] [Accepted: 03/20/2021] [Indexed: 11/16/2022] Open
Abstract
The emergence and prevalence of multidrug-resistant (MDR) bacteria have posed a serious threat to public health. Of particular concern are methicillin-resistant Staphylococcus aureus (MRSA) and blaNDM, mcr-1 and tet(X)-positive Gram-negative pathogens. The fact that few new antibiotics have been approved in recent years exacerbates this global crisis, thus, new alternatives are urgently needed. Antimicrobial peptides (AMPs) originated from host defense peptides with a wide range of sources and multiple functions, are less prone to achieve resistance. All these characteristics laid the foundation for AMPs to become potential antibiotic candidates. In this study, we revealed that peptide WW307 displayed potent antibacterial and bactericidal activity against MDR bacteria, including MRSA and Gram-negative bacteria carrying blaNDM-5, mcr-1 or tet(X4). In addition, WW307 exhibited great biofilm inhibition and eradication activity. Safety and stability experiments showed that WW307 had a strong resistance against various physiological conditions and displayed relatively low toxicity. Mechanistic experiments showed that WW307 resulted in membrane damage by selectively targeting bacterial membrane-specific components, including lipopolysaccharide (LPS), phosphatidylglycerol (PG), and cardiolipin (CL). Moreover, WW307 dissipated membrane potential and triggered the production of reactive oxygen species (ROS). Collectively, these results demonstrated that WW307 represents a promising candidate for combating MDR pathogens.
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Affiliation(s)
- Jingru Shi
- College of Veterinary Medicine, Yangzhou University, Yangzhou 225009, China; (J.S.); (C.C.); (D.W.); (Z.T.)
| | - Chen Chen
- College of Veterinary Medicine, Yangzhou University, Yangzhou 225009, China; (J.S.); (C.C.); (D.W.); (Z.T.)
| | - Dejuan Wang
- College of Veterinary Medicine, Yangzhou University, Yangzhou 225009, China; (J.S.); (C.C.); (D.W.); (Z.T.)
| | - Ziwen Tong
- College of Veterinary Medicine, Yangzhou University, Yangzhou 225009, China; (J.S.); (C.C.); (D.W.); (Z.T.)
| | - Zhiqiang Wang
- College of Veterinary Medicine, Yangzhou University, Yangzhou 225009, China; (J.S.); (C.C.); (D.W.); (Z.T.)
- Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou University, Yangzhou 225009, China
- Joint International Research Laboratory of Agriculture and Agri-Product Safety, The Ministry of Education of China, Yangzhou University, Yangzhou 225009, China
| | - Yuan Liu
- College of Veterinary Medicine, Yangzhou University, Yangzhou 225009, China; (J.S.); (C.C.); (D.W.); (Z.T.)
- Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou University, Yangzhou 225009, China
- Joint International Research Laboratory of Agriculture and Agri-Product Safety, The Ministry of Education of China, Yangzhou University, Yangzhou 225009, China
- Institute of Comparative Medicine, Yangzhou University, Yangzhou 225009, China
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Li S, Wang Y, Xue Z, Jia Y, Li R, He C, Chen H. The structure-mechanism relationship and mode of actions of antimicrobial peptides: A review. Trends Food Sci Technol 2021. [DOI: 10.1016/j.tifs.2021.01.005] [Citation(s) in RCA: 37] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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Dash R, Bhattacharjya S. Thanatin: An Emerging Host Defense Antimicrobial Peptide with Multiple Modes of Action. Int J Mol Sci 2021; 22:ijms22041522. [PMID: 33546369 PMCID: PMC7913509 DOI: 10.3390/ijms22041522] [Citation(s) in RCA: 44] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2021] [Revised: 01/28/2021] [Accepted: 02/01/2021] [Indexed: 12/11/2022] Open
Abstract
Antimicrobial peptides (AMPs) possess great potential for combating drug-resistant bacteria. Thanatin is a pathogen-inducible single-disulfide-bond-containing β-hairpin AMP which was first isolated from the insect Podisus maculiventris. The 21-residue-long thanatin displays broad-spectrum activity against both Gram-negative and Gram-positive bacteria as well as against various species of fungi. Remarkably, thanatin was found to be highly potent in inhibiting the growth of bacteria and fungi at considerably low concentrations. Although thanatin was isolated around 25 years ago, only recently has there been a pronounced interest in understanding its mode of action and activity against drug-resistant bacteria. In this review, multiple modes of action of thanatin in killing bacteria and in vivo activity, therapeutic potential are discussed. This promising AMP requires further research for the development of novel molecules for the treatment of infections caused by drug resistant pathogens.
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Affiliation(s)
- Rachita Dash
- School of Biological Sciences, Nanyang Technological University, Singapore 637551, Singapore;
- Department of Systems and Computational Biology, School of Life Sciences, University of Hyderabad, Hyderabad, Telangana 500046, India
| | - Surajit Bhattacharjya
- School of Biological Sciences, Nanyang Technological University, Singapore 637551, Singapore;
- Correspondence:
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Rounds T, Straus SK. Lipidation of Antimicrobial Peptides as a Design Strategy for Future Alternatives to Antibiotics. Int J Mol Sci 2020; 21:ijms21249692. [PMID: 33353161 PMCID: PMC7766664 DOI: 10.3390/ijms21249692] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2020] [Revised: 12/09/2020] [Accepted: 12/14/2020] [Indexed: 02/08/2023] Open
Abstract
Multi-drug-resistant bacteria are becoming more prevalent, and treating these bacteria is becoming a global concern. One alternative approach to combat bacterial resistance is to use antimicrobial (AMPs) or host-defense peptides (HDPs) because they possess broad-spectrum activity, function in a variety of ways, and lead to minimal resistance. However, the therapeutic efficacy of HDPs is limited by a number of factors, including systemic toxicity, rapid degradation, and low bioavailability. One approach to circumvent these issues is to use lipidation, i.e., the attachment of one or more fatty acid chains to the amine groups of the N-terminus or a lysine residue of an HDP. In this review, we examined lipidated analogs of 66 different HDPs reported in the literature to determine: (i) whether there is a link between acyl chain length and antibacterial activity; (ii) whether the charge and (iii) the hydrophobicity of the HDP play a role; and (iv) whether acyl chain length and toxicity are related. Overall, the analysis suggests that lipidated HDPs with improved activity over the nonlipidated counterpart had acyl chain lengths of 8–12 carbons. Moreover, active lipidated peptides attached to short HDPs tended to have longer acyl chain lengths. Neither the charge of the parent HDP nor the percent hydrophobicity of the peptide had an apparent significant impact on the antibacterial activity. Finally, the relationship between acyl chain length and toxicity was difficult to determine due to the fact that toxicity is quantified in different ways. The impact of these trends, as well as combined strategies such as the incorporation of d- and non-natural amino acids or alternative approaches, will be discussed in light of how lipidation may play a role in the future development of antimicrobial peptide-based alternatives to current therapeutics.
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Kurpe SR, Grishin SY, Surin AK, Panfilov AV, Slizen MV, Chowdhury SD, Galzitskaya OV. Antimicrobial and Amyloidogenic Activity of Peptides. Can Antimicrobial Peptides Be Used against SARS-CoV-2? Int J Mol Sci 2020; 21:E9552. [PMID: 33333996 PMCID: PMC7765370 DOI: 10.3390/ijms21249552] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2020] [Revised: 12/07/2020] [Accepted: 12/12/2020] [Indexed: 02/07/2023] Open
Abstract
At present, much attention is paid to the use of antimicrobial peptides (AMPs) of natural and artificial origin to combat pathogens. AMPs have several points that determine their biological activity. We analyzed the structural properties of AMPs, as well as described their mechanism of action and impact on pathogenic bacteria and viruses. Recently published data on the development of new AMP drugs based on a combination of molecular design and genetic engineering approaches are presented. In this article, we have focused on information on the amyloidogenic properties of AMP. This review examines AMP development strategies from the perspective of the current high prevalence of antibiotic-resistant bacteria, and the potential prospects and challenges of using AMPs against infection caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2).
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Affiliation(s)
- Stanislav R. Kurpe
- Institute of Protein Research, Russian Academy of Sciences, 142290 Pushchino, Russia; (S.R.K.); (S.Y.G.); (A.K.S.); (A.V.P.); (M.V.S.)
| | - Sergei Yu. Grishin
- Institute of Protein Research, Russian Academy of Sciences, 142290 Pushchino, Russia; (S.R.K.); (S.Y.G.); (A.K.S.); (A.V.P.); (M.V.S.)
| | - Alexey K. Surin
- Institute of Protein Research, Russian Academy of Sciences, 142290 Pushchino, Russia; (S.R.K.); (S.Y.G.); (A.K.S.); (A.V.P.); (M.V.S.)
- The Branch of the Institute of Bioorganic Chemistry, Russian Academy of Sciences, 142290 Pushchino, Russia
- State Research Center for Applied Microbiology and Biotechnology, 142279 Obolensk, Russia
| | - Alexander V. Panfilov
- Institute of Protein Research, Russian Academy of Sciences, 142290 Pushchino, Russia; (S.R.K.); (S.Y.G.); (A.K.S.); (A.V.P.); (M.V.S.)
| | - Mikhail V. Slizen
- Institute of Protein Research, Russian Academy of Sciences, 142290 Pushchino, Russia; (S.R.K.); (S.Y.G.); (A.K.S.); (A.V.P.); (M.V.S.)
| | - Saikat D. Chowdhury
- Department of Biological Sciences, Indian Institute of Science Education and Research Kolkata, Mohanpur 741246, West Bengal, India;
| | - Oxana V. Galzitskaya
- Institute of Protein Research, Russian Academy of Sciences, 142290 Pushchino, Russia; (S.R.K.); (S.Y.G.); (A.K.S.); (A.V.P.); (M.V.S.)
- Institute of Theoretical and Experimental Biophysics, Russian Academy of Sciences, 142290 Pushchino, Russia
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Brunetti J, Carnicelli V, Ponzi A, Di Giulio A, Lizzi AR, Cristiano L, Cresti L, Cappello G, Pollini S, Mosconi L, Rossolini GM, Bracci L, Falciani C, Pini A. Antibacterial and Anti-Inflammatory Activity of an Antimicrobial Peptide Synthesized with D Amino Acids. Antibiotics (Basel) 2020; 9:antibiotics9120840. [PMID: 33255172 PMCID: PMC7760307 DOI: 10.3390/antibiotics9120840] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2020] [Revised: 11/17/2020] [Accepted: 11/22/2020] [Indexed: 12/13/2022] Open
Abstract
The peptide SET-M33 is a molecule synthesized in tetra-branched form which is being developed as a new antibiotic against Gram-negative bacteria. Its isomeric form with D amino acids instead of the L version (SET-M33D) is also able to kill Gram-positive bacteria because of its higher resistance to bacterial proteases (Falciani et al., PLoS ONE, 2012, 7, e46259). Here we report the strong in vitro activity of SET-M33D (MIC range 0.7-6.0 µM) against multiresistant pathogens of clinical interest, including Gram-positives Staphylococcus aureus, Staphylococcus saprophyticus, and Enterococcus faecalis, and various Gram-negative enterobacteriaceae. SET-M33D antibacterial activity is also confirmed in vivo against a MRSA strain of S. aureus with doses perfectly compatible with clinical use (5 and 2.5 mg/Kg). Moreover, SET-M33D strongly neutralized lipopolysaccharide (LPS) and lipoteichoic acid (LTA), thus exerting a strong anti-inflammatory effect, reducing expression of cytokines, enzymes, and transcription factors (TNF-α, IL6, COX-2, KC, MIP-1, IP10, iNOS, NF-κB) involved in the onset and evolution of the inflammatory process. These results, along with in vitro and in vivo toxicity data and the low frequency of resistance selection reported here, make SET-M33D a strong candidate for the development of a new broad spectrum antibiotic.
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Affiliation(s)
- Jlenia Brunetti
- Department of Medical Biotechnologies, University of Siena, 53100 Siena, Italy; (G.C.); (L.B.); (C.F.); (A.P.)
- Correspondence:
| | - Veronica Carnicelli
- Department of Biotechnological and Applied Clinical Sciences, University of L’Aquila, 67100 L’Aquila, Italy; (V.C.); (A.P.); (A.D.G.); (A.R.L.)
| | - Alessia Ponzi
- Department of Biotechnological and Applied Clinical Sciences, University of L’Aquila, 67100 L’Aquila, Italy; (V.C.); (A.P.); (A.D.G.); (A.R.L.)
| | - Antonio Di Giulio
- Department of Biotechnological and Applied Clinical Sciences, University of L’Aquila, 67100 L’Aquila, Italy; (V.C.); (A.P.); (A.D.G.); (A.R.L.)
| | - Anna Rita Lizzi
- Department of Biotechnological and Applied Clinical Sciences, University of L’Aquila, 67100 L’Aquila, Italy; (V.C.); (A.P.); (A.D.G.); (A.R.L.)
| | - Loredana Cristiano
- Department of Life, Health and Environmental Sciences, University of L’Aquila, 67100 L’Aquila, Italy;
| | - Laura Cresti
- SetLance srl, Toscana Life Sciences, 53100 Siena, Italy;
| | - Giovanni Cappello
- Department of Medical Biotechnologies, University of Siena, 53100 Siena, Italy; (G.C.); (L.B.); (C.F.); (A.P.)
| | - Simona Pollini
- Department of Experimental and Clinical Medicine, University of Florence, 50134 Florence, Italy; (S.P.); (L.M.); (G.M.R.)
- Microbiology and Virology Unit, Careggi University Hospital, 50134 Florence, Italy
| | - Lara Mosconi
- Department of Experimental and Clinical Medicine, University of Florence, 50134 Florence, Italy; (S.P.); (L.M.); (G.M.R.)
| | - Gian Maria Rossolini
- Department of Experimental and Clinical Medicine, University of Florence, 50134 Florence, Italy; (S.P.); (L.M.); (G.M.R.)
- Microbiology and Virology Unit, Careggi University Hospital, 50134 Florence, Italy
| | - Luisa Bracci
- Department of Medical Biotechnologies, University of Siena, 53100 Siena, Italy; (G.C.); (L.B.); (C.F.); (A.P.)
- Laboratory of Clinical Pathology, Santa Maria alle Scotte Hospital, 53100 Siena, Italy
| | - Chiara Falciani
- Department of Medical Biotechnologies, University of Siena, 53100 Siena, Italy; (G.C.); (L.B.); (C.F.); (A.P.)
| | - Alessandro Pini
- Department of Medical Biotechnologies, University of Siena, 53100 Siena, Italy; (G.C.); (L.B.); (C.F.); (A.P.)
- Laboratory of Clinical Pathology, Santa Maria alle Scotte Hospital, 53100 Siena, Italy
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The Uniqueness of Tryptophan in Biology: Properties, Metabolism, Interactions and Localization in Proteins. Int J Mol Sci 2020; 21:ijms21228776. [PMID: 33233627 PMCID: PMC7699789 DOI: 10.3390/ijms21228776] [Citation(s) in RCA: 65] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2020] [Revised: 11/16/2020] [Accepted: 11/17/2020] [Indexed: 12/14/2022] Open
Abstract
Tryptophan (Trp) holds a unique place in biology for a multitude of reasons. It is the largest of all twenty amino acids in the translational toolbox. Its side chain is indole, which is aromatic with a binuclear ring structure, whereas those of Phe, Tyr, and His are single-ring aromatics. In part due to these elaborate structural features, the biosynthetic pathway of Trp is the most complex and the most energy-consuming among all amino acids. Essential in the animal diet, Trp is also the least abundant amino acid in the cell, and one of the rarest in the proteome. In most eukaryotes, Trp is the only amino acid besides Met, which is coded for by a single codon, namely UGG. Due to the large and hydrophobic π-electron surface area, its aromatic side chain interacts with multiple other side chains in the protein, befitting its strategic locations in the protein structure. Finally, several Trp derivatives, namely tryptophylquinone, oxitriptan, serotonin, melatonin, and tryptophol, have specialized functions. Overall, Trp is a scarce and precious amino acid in the cell, such that nature uses it parsimoniously, for multiple but selective functions. Here, the various aspects of the uniqueness of Trp are presented in molecular terms.
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Identification of New Antimicrobial Peptides from Mediterranean Medical Plant Charybdis pancration (Steinh.) Speta. Antibiotics (Basel) 2020; 9:antibiotics9110747. [PMID: 33126631 PMCID: PMC7694139 DOI: 10.3390/antibiotics9110747] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2020] [Revised: 10/21/2020] [Accepted: 10/26/2020] [Indexed: 02/07/2023] Open
Abstract
The present work was designed to identify and characterize novel antimicrobial peptides (AMPs) from Charybdis pancration (Steinh.) Speta, previously named Urginea maritima, is a Mediterranean plant, well-known for its biological properties in traditional medicine. Polypeptide-enriched extracts from different parts of the plant (roots, leaves and bulb), never studied before, were tested against two relevant pathogens, Staphylococcus aureus and Pseudomonas aeruginosa. With the aim of identifying novel natural AMPs, peptide fraction displaying antimicrobial activity (the bulb) that showed minimum inhibitory concentration (MICs) equal to 30 µg/mL against the above mentioned strains, was analysed by high-resolution mass spectrometry and database search. Seventeen peptides, related to seven proteins present in the investigated database, were described. Furthermore, we focused on three peptides, which due to their net positive charge, have a better chance to be AMPs and they were investigated by molecular modelling approaches, in order to shed light on the solution properties of their equilibrium structures. Some of new detected peptides could represent a good platform for the development of new antimicrobials in the fight against antibiotic resistance phenomenon.
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Liu Y, Shi J, Tong Z, Jia Y, Yang K, Wang Z. Potent Broad-Spectrum Antibacterial Activity of Amphiphilic Peptides against Multidrug-Resistant Bacteria. Microorganisms 2020; 8:microorganisms8091398. [PMID: 32932906 PMCID: PMC7564829 DOI: 10.3390/microorganisms8091398] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2020] [Revised: 09/04/2020] [Accepted: 09/09/2020] [Indexed: 02/06/2023] Open
Abstract
The emergence and prevalence of multidrug-resistant (MDR) bacteria particularly Gram-negative bacteria presents a global crisis for human health. Colistin and tigecycline were recognized as the last resort of defenses against MDR Gram-negative pathogens. However, the emergence and prevalence of MCR or Tet(X)-mediated acquired drug resistance drastically impaired their clinical efficacy. It has been suggested that antimicrobial peptides might act a crucial role in combating antibiotic resistant bacteria owing to their multiple modes of action and characteristics that are not prone to developing drug resistance. Herein, we report a safe and stable tryptophan-rich amphiphilic peptide termed WRK-12 with broad-spectrum antibacterial activity against various MDR bacteria, including MRSA, colistin and tigecycline-resistant Escherichia coli. Mechanistical studies showed that WRK-12 killed resistant E. coli through permeabilizing the bacterial membrane, dissipating membrane potential and triggering the production of reactive oxygen species (ROS). Meanwhile, WRK-12 significantly inhibited the formation of an E. coli biofilm in a dose-dependent manner. These findings revealed that amphiphilic peptide WRK-12 is a promising drug candidate in the fight against MDR bacteria.
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Affiliation(s)
- Yuan Liu
- College of Veterinary Medicine, Yangzhou University, Yangzhou 225009, China; (Y.L.); (J.S.); (Z.T.); (Y.J.); (K.Y.)
- Institute of Comparative Medicine, Yangzhou University, Yangzhou 225009, China
- Jiangsu Co-Innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou University, Yangzhou 225009, China
- Joint International Research Laboratory of Agriculture and Agri-Product Safety, The Ministry of Education of China, Yangzhou University, Yangzhou 225009, China
| | - Jingru Shi
- College of Veterinary Medicine, Yangzhou University, Yangzhou 225009, China; (Y.L.); (J.S.); (Z.T.); (Y.J.); (K.Y.)
| | - Ziwen Tong
- College of Veterinary Medicine, Yangzhou University, Yangzhou 225009, China; (Y.L.); (J.S.); (Z.T.); (Y.J.); (K.Y.)
| | - Yuqian Jia
- College of Veterinary Medicine, Yangzhou University, Yangzhou 225009, China; (Y.L.); (J.S.); (Z.T.); (Y.J.); (K.Y.)
| | - Kangni Yang
- College of Veterinary Medicine, Yangzhou University, Yangzhou 225009, China; (Y.L.); (J.S.); (Z.T.); (Y.J.); (K.Y.)
| | - Zhiqiang Wang
- College of Veterinary Medicine, Yangzhou University, Yangzhou 225009, China; (Y.L.); (J.S.); (Z.T.); (Y.J.); (K.Y.)
- Jiangsu Co-Innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou University, Yangzhou 225009, China
- Joint International Research Laboratory of Agriculture and Agri-Product Safety, The Ministry of Education of China, Yangzhou University, Yangzhou 225009, China
- Correspondence:
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