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Marinho Righetto G, Alves Santos-Filho N, Oliveira Catarin Nunes L, André C, Souza JM, Andricopulo AD, Martins Bispo PJ, Cilli EM, Camargo ILBDC. Optimizing Bothropstoxin-I-Derived Peptides: Exploring the Antibacterial Potential of p-BthW. ACS OMEGA 2024; 9:23662-23674. [PMID: 38854567 PMCID: PMC11154919 DOI: 10.1021/acsomega.4c01303] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/09/2024] [Revised: 05/06/2024] [Accepted: 05/15/2024] [Indexed: 06/11/2024]
Abstract
Antimicrobial peptides are an emerging class of antibiotics that present a series of advantageous characteristics such as wide structural variety, broad spectrum of activity, and low propensity to select for resistance. They are found in all classes of life as defense molecules. A group of peptides derived from the protein Bothropstoxin-I has been previously studied as an alternative treatment against multi-drug-resistant bacteria. The peptide p-BthTX-I (sequence: KKYRYHLKPFCKK) and its homodimer, linked by disulfide oxidation through the residues of Cys11 and the serum degradation product [sequence: (KKYRYHLKPFC)2], were evaluated and showed similar antimicrobial activity. In this study, we synthesized an analogue of p-BthTX-I that uses the strategy of Fmoc-Lys(Fmoc)-OH in the C-terminal region for dimerization and tryptophan for all aromatic amino acids to provide better membrane interactions. This analogue, named p-BthW, displayed potent antibacterial activity at lower concentrations and maintained the same hemolytic levels as the original molecule. Our assessment revealed that p-BthW has a quick in vitro bactericidal action and prolonged post-antibiotic effect, comparable to the action of polymyxin B. The mode of action of p-BthW seems to rely not only on membrane depolarization but also on necrosis-like effects, especially in Gram-negative bacteria. Overall, the remarkable results regarding the propensity to develop resistance reaffirmed the great potential of the developed molecule.
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Affiliation(s)
- Gabriela Marinho Righetto
- Laboratory
of Molecular Epidemiology and Microbiology, Department of Physics
and Interdisciplinary Science, University
of Sao Paulo, 13563-120 São Carlos, Brazil
| | - Norival Alves Santos-Filho
- Department
of Biochemistry and Organic Chemistry, Institute of Chemistry, São Paulo State University, 14800-060 Araraquara, Brazil
| | - Letícia Oliveira Catarin Nunes
- Department
of Biochemistry and Organic Chemistry, Institute of Chemistry, São Paulo State University, 14800-060 Araraquara, Brazil
| | - Camille André
- Infectious
Disease Institute, Department of Ophthalmology, Massachusetts Eye
and Ear, Harvard Medical School, Boston, Massachusetts 02115, United States
| | - Julia Medeiros Souza
- Laboratory
of Medicinal and Computational Chemistry, Department of Physics and
Interdisciplinary Science, University of
Sao Paulo, 13563-120 São Carlos, Brazil
| | - Adriano Defini Andricopulo
- Laboratory
of Medicinal and Computational Chemistry, Department of Physics and
Interdisciplinary Science, University of
Sao Paulo, 13563-120 São Carlos, Brazil
| | - Paulo José Martins Bispo
- Infectious
Disease Institute, Department of Ophthalmology, Massachusetts Eye
and Ear, Harvard Medical School, Boston, Massachusetts 02115, United States
| | - Eduardo Maffud Cilli
- Department
of Biochemistry and Organic Chemistry, Institute of Chemistry, São Paulo State University, 14800-060 Araraquara, Brazil
| | - Ilana Lopes Baratella da Cunha Camargo
- Laboratory
of Molecular Epidemiology and Microbiology, Department of Physics
and Interdisciplinary Science, University
of Sao Paulo, 13563-120 São Carlos, Brazil
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Khodadadi E, Zeinalzadeh E, Taghizadeh S, Mehramouz B, Kamounah FS, Khodadadi E, Ganbarov K, Yousefi B, Bastami M, Kafil HS. Proteomic Applications in Antimicrobial Resistance and Clinical Microbiology Studies. Infect Drug Resist 2020; 13:1785-1806. [PMID: 32606829 PMCID: PMC7305820 DOI: 10.2147/idr.s238446] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2019] [Accepted: 05/23/2020] [Indexed: 12/11/2022] Open
Abstract
Sequences of the genomes of all-important bacterial pathogens of man, plants, and animals have been completed. Still, it is not enough to achieve complete information of all the mechanisms controlling the biological processes of an organism. Along with all advances in different proteomics technologies, proteomics has completed our knowledge of biological processes all around the world. Proteomics is a valuable technique to explain the complement of proteins in any organism. One of the fields that has been notably benefited from other systems approaches is bacterial pathogenesis. An emerging field is to use proteomics to examine the infectious agents in terms of, among many, the response the host and pathogen to the infection process, which leads to a deeper knowledge of the mechanisms of bacterial virulence. This trend also enables us to identify quantitative measurements for proteins extracted from microorganisms. The present review study is an attempt to summarize a variety of different proteomic techniques and advances. The significant applications in bacterial pathogenesis studies are also covered. Moreover, the areas where proteomics may lead the future studies are introduced.
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Affiliation(s)
- Ehsaneh Khodadadi
- Drug Applied Research Center, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Elham Zeinalzadeh
- Student Research Committee, Tabriz University of Medical Sciences, Tabriz, Iran.,Hematology and Oncology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Sepehr Taghizadeh
- Drug Applied Research Center, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Bahareh Mehramouz
- Hematology and Oncology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Fadhil S Kamounah
- Department of Chemistry, University of Copenhagen, Copenhagen, DK 2100, Denmark
| | - Ehsan Khodadadi
- Department of Biology, Tabriz Branch, Islamic Azad University, Tabriz, Iran
| | | | - Bahman Yousefi
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Milad Bastami
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Hossein Samadi Kafil
- Drug Applied Research Center, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
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3
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Daptomycin and vancomycin heteroresistance revealed among CC5-SCCmecII MRSA clone and in vitro evaluation of treatment alternatives. J Glob Antimicrob Resist 2018; 14:209-216. [DOI: 10.1016/j.jgar.2018.05.001] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2017] [Revised: 04/05/2018] [Accepted: 05/03/2018] [Indexed: 11/23/2022] Open
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Antibacterial Activity of the Non-Cytotoxic Peptide (p-BthTX-I)₂ and Its Serum Degradation Product against Multidrug-Resistant Bacteria. Molecules 2017; 22:molecules22111898. [PMID: 29113051 PMCID: PMC6150245 DOI: 10.3390/molecules22111898] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2017] [Revised: 10/30/2017] [Accepted: 10/31/2017] [Indexed: 12/17/2022] Open
Abstract
Antimicrobial peptides can be used systemically, however, their susceptibility to proteases is a major obstacle in peptide-based therapeutic development. In the present study, the serum stability of p-BthTX-I (KKYRYHLKPFCKK) and (p-BthTX-I)₂, a p-BthTX-I disulfide-linked dimer, were analyzed by mass spectrometry and analytical high-performance liquid chromatography (HPLC). Antimicrobial activities were assessed by determining their minimum inhibitory concentrations (MIC) using cation-adjusted Mueller-Hinton broth. Furthermore, biofilm eradication and time-kill kinetics were performed. Our results showed that p-BthTX-I and (p-BthTX-I)₂ were completely degraded after 25 min. Mass spectrometry showed that the primary degradation product was a peptide that had lost four lysine residues on its C-terminus region (des-Lys12/Lys13-(p-BthTX-I)₂), which was stable after 24 h of incubation. The antibacterial activities of the peptides p-BthTX-I, (p-BthTX-I)₂, and des-Lys12/Lys13-(p-BthTX-I)₂ were evaluated against a variety of bacteria, including multidrug-resistant strains. Des-Lys12/Lys13-(p-BthTX-I)₂ and (p-BthTX-I)₂ degraded Staphylococcus epidermidis biofilms. Additionally, both the peptides exhibited bactericidal activities against planktonic S. epidermidis in time-kill assays. The emergence of bacterial resistance to a variety of antibiotics used in clinics is the ultimate challenge for microbial infection control. Therefore, our results demonstrated that both peptides analyzed and the product of proteolysis obtained from (p-BthTX-I)₂ are promising prototypes as novel drugs to treat multidrug-resistant bacterial infections.
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Crusca E, Câmara AS, Matos CO, Marchetto R, Cilli EM, Lião LM, Lima de Oliveira A. NMR structures and molecular dynamics simulation of hylin-a1 peptide analogs interacting with micelles. J Pept Sci 2017; 23:421-430. [PMID: 28425152 DOI: 10.1002/psc.3002] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2016] [Revised: 02/28/2017] [Accepted: 03/13/2017] [Indexed: 01/20/2023]
Abstract
Antimicrobial peptides are recognized candidates with pharmaceutical potential against epidemic emerging multi-drug resistant bacteria. In this study, we use nuclear magnetic resonance spectroscopy and molecular dynamics simulations to determine the unknown structure and evaluate the interaction with dodecylphosphatidylcholine (DPC) and sodium dodecylsulphate (SDS) micelles with three W6 -Hylin-a1 analogs antimicrobial peptides (HyAc, HyK, and HyD). The HyAc, HyK, and HyD bound to DPC micelles are all formed by a unique α-helix structure. Moreover, all peptides reach the DPC micelles' core, which thus suggests that the N-terminal modifications do not influence the interaction with zwiterionic surfaces. On the other hand, only HyAc and HyK peptides are able to penetrate the SDS micelle core while HyD remains always at its surface. The stability of the α-helical structure, after peptide-membrane interaction, can also be important to the second step of peptide insertion into the membrane hydrophobic core during permeabilization. Copyright © 2017 European Peptide Society and John Wiley & Sons, Ltd.
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Affiliation(s)
- Edson Crusca
- São Paulo State University (UNESP), Institute of Chemistry, Araraquara, SP, Brazil
| | - Amanda Souza Câmara
- Institute of Physics of São Carlos, University of São Paulo, São Carlos, SP, Brazil
| | | | - Reinaldo Marchetto
- São Paulo State University (UNESP), Institute of Chemistry, Araraquara, SP, Brazil
| | - Eduardo Maffud Cilli
- São Paulo State University (UNESP), Institute of Chemistry, Araraquara, SP, Brazil
| | | | - Aline Lima de Oliveira
- Institute of Chemistry, Federal University of Goiás, Goiânia, GO, Brazil.,Institute of Chemistry, University of Brasília, Brasília, DF, Brazil
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Panesso D, Planet PJ, Diaz L, Hugonnet JE, Tran TT, Narechania A, Munita JM, Rincon S, Carvajal LP, Reyes J, Londoño A, Smith H, Sebra R, Deikus G, Weinstock GM, Murray BE, Rossi F, Arthur M, Arias CA. Methicillin-Susceptible, Vancomycin-Resistant Staphylococcus aureus, Brazil. Emerg Infect Dis 2016; 21:1844-8. [PMID: 26402569 PMCID: PMC4593430 DOI: 10.3201/eid2110.141914] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
We report characterization of a methicillin-susceptible, vancomycin-resistant bloodstream isolate of Staphylococcus aureus recovered from a patient in Brazil. Emergence of vancomycin resistance in methicillin-susceptible S. aureus would indicate that this resistance trait might be poised to disseminate more rapidly among S. aureus and represents a major public health threat.
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