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Cianciulli Sesso A, Resch A, Moll I, Bläsi U, Sonnleitner E. The FinO/ProQ-like protein PA2582 impacts antimicrobial resistance in Pseudomonas aeruginosa. Front Microbiol 2024; 15:1422742. [PMID: 39011145 PMCID: PMC11247311 DOI: 10.3389/fmicb.2024.1422742] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2024] [Accepted: 06/03/2024] [Indexed: 07/17/2024] Open
Abstract
Bacteria employ small regulatory RNAs (sRNA) and/or RNA binding proteins (RBPs) to respond to environmental cues. In Enterobacteriaceae, the FinO-domain containing RBP ProQ associates with numerous sRNAs and mRNAs, impacts sRNA-mediated riboregulation or mRNA stability by binding to 5'- or 3'-untranslated regions as well as to internal stem loop structures. Global RNA-protein interaction studies and sequence comparisons identified a ProQ-like homolog (PA2582/ProQ Pae ) in Pseudomonas aeruginosa (Pae). To address the function of ProQ Pae , at first a comparative transcriptome analysis of the Pae strains PAO1 and PAO1ΔproQ was performed. This study revealed more than 100 differentially abundant transcripts, affecting a variety of cellular functions. Among these transcripts were pprA and pprB, encoding the PprA/PprB two component system, psrA, encoding a transcriptional activator of pprB, and oprI, encoding the outer membrane protein OprI. RNA co-purification experiments with Strep-tagged Pae ProQ protein corroborated an association of ProQ Pae with these transcripts. In accordance with the up-regulation of the psrA, pprA, and pprB genes in strain PAO1ΔproQ a phenotypic analysis revealed an increased susceptibility toward the aminoglycosides tobramycin and gentamicin in biofilms. Conversely, the observed down-regulation of the oprI gene in PAO1ΔproQ could be reconciled with a decreased susceptibility toward the synthetic cationic antimicrobial peptide GW-Q6. Taken together, these studies revealed that ProQ Pae is an RBP that impacts antimicrobial resistance in Pae.
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Affiliation(s)
- Anastasia Cianciulli Sesso
- Department of Microbiology, Immunobiology and Genetics, Max Perutz Labs, Center of Molecular Biology, Vienna Biocenter, University of Vienna, Vienna, Austria
- Vienna BioCenter PhD Program, a Doctoral School of the University of Vienna and the Medical University of Vienna, Max Perutz Labs, Vienna Biocenter, University of Vienna, Vienna, Austria
| | - Armin Resch
- Department of Microbiology, Immunobiology and Genetics, Max Perutz Labs, Center of Molecular Biology, Vienna Biocenter, University of Vienna, Vienna, Austria
| | - Isabella Moll
- Department of Microbiology, Immunobiology and Genetics, Max Perutz Labs, Center of Molecular Biology, Vienna Biocenter, University of Vienna, Vienna, Austria
| | - Udo Bläsi
- Department of Microbiology, Immunobiology and Genetics, Max Perutz Labs, Center of Molecular Biology, Vienna Biocenter, University of Vienna, Vienna, Austria
| | - Elisabeth Sonnleitner
- Department of Microbiology, Immunobiology and Genetics, Max Perutz Labs, Center of Molecular Biology, Vienna Biocenter, University of Vienna, Vienna, Austria
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Liang Q, Liu Z, Liang Z, Zhu C, Li D, Kong Q, Mou H. Development strategies and application of antimicrobial peptides as future alternatives to in-feed antibiotics. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 927:172150. [PMID: 38580107 DOI: 10.1016/j.scitotenv.2024.172150] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/12/2024] [Revised: 03/14/2024] [Accepted: 03/30/2024] [Indexed: 04/07/2024]
Abstract
The use of in-feed antibiotics has been widely restricted due to the significant environmental pollution and food safety concerns they have caused. Antimicrobial peptides (AMPs) have attracted widespread attention as potential future alternatives to in-feed antibiotics owing to their demonstrated antimicrobial activity and environment friendly characteristics. However, the challenges of weak bioactivity, immature stability, and low production yields of natural AMPs impede practical application in the feed industry. To address these problems, efforts have been made to develop strategies for approaching the AMPs with enhanced properties. Herein, we summarize approaches to improving the properties of AMPs as potential alternatives to in-feed antibiotics, mainly including optimization of structural parameters, sequence modification, selection of microbial hosts, fusion expression, and industrially fermentation control. Additionally, the potential for application of AMPs in animal husbandry is discussed. This comprehensive review lays a strong theoretical foundation for the development of in-feed AMPs to achieve the public health globally.
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Affiliation(s)
- Qingping Liang
- College of Food Science and Engineering, Ocean University of China, Qingdao 266404, China
| | - Zhemin Liu
- Fundamental Science R&D Center of Vazyme Biotech Co. Ltd., Nanjing 210000, China
| | - Ziyu Liang
- Section of Neurobiology, Department of Biological Sciences, University of Southern California, Los Angeles, CA 90089, USA
| | - Changliang Zhu
- College of Food Science and Engineering, Ocean University of China, Qingdao 266404, China
| | - Dongyu Li
- College of Food Science and Engineering, Ocean University of China, Qingdao 266404, China
| | - Qing Kong
- College of Food Science and Engineering, Ocean University of China, Qingdao 266404, China
| | - Haijin Mou
- College of Food Science and Engineering, Ocean University of China, Qingdao 266404, China.
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3
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Adarvez-Feresin CW, Ortiz JE, Piñeiro MD, Parravicini O, Enriz RD, Garro AD, Feresin GE. Inhibitory effect of galantamine and donepezil combination against cholinesterase: An in silico and in vitro study. Arch Pharm (Weinheim) 2024; 357:e2300581. [PMID: 38229212 DOI: 10.1002/ardp.202300581] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2023] [Revised: 12/15/2023] [Accepted: 12/18/2023] [Indexed: 01/18/2024]
Abstract
This study aimed to evaluate the in silico and in vitro inhibitory effect of the combined use of galantamine (GAL) and donepezil (DON) against acetylcholinesterase and butyrylcholinesterase (BuChE) enzymes. In silico and in vitro cholinesterase analysis were carried out for GAL and DON alone and combined. Molecular modeling studies were carried out (docking analysis, molecular dynamics simulation, and quantum theory of atoms in molecules). Cholinesterase's inhibitory activities by modified Ellman's method and the drug combination effect using the Chou-Talalay method were assayed. GAL/DON combination showed the co-occupancy of the ligands in both enzymes through in silico studies. Regarding in vitro BuChE inhibition analyses, three of five combinations showed an interaction between GAL and DON at the threshold of additive affect (0.9 < CI < 1.1), with a tendency toward a synergistic effect for higher concentrations. This is the first report showing the efficacy of the GAL/DON combinations inhibiting BuChE, showing the importance of analyzing the behavior of different ligands when co-occupancy into the active site is possible. These combinations might be a possible therapy to improved efficacy, reduced doses, minor side effects, and high levels of the neurotransmitter in the synaptic space for Alzheimer's disease.
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Affiliation(s)
- Camila W Adarvez-Feresin
- IMIBIO-SL CONICET, Facultad de Química, Bioquímica y Farmacia, Universidad Nacional de San Luis, San Luis, San Luis, Argentina
| | - Javier E Ortiz
- Instituto de Biotecnología, Facultad de Ingeniería, Universidad Nacional de San Juan, San Juan, San Juan, Argentina
| | - Mauricio D Piñeiro
- Instituto de Biotecnología, Facultad de Ingeniería, Universidad Nacional de San Juan, San Juan, San Juan, Argentina
| | - Oscar Parravicini
- IMIBIO-SL CONICET, Facultad de Química, Bioquímica y Farmacia, Universidad Nacional de San Luis, San Luis, San Luis, Argentina
| | - Ricardo D Enriz
- IMIBIO-SL CONICET, Facultad de Química, Bioquímica y Farmacia, Universidad Nacional de San Luis, San Luis, San Luis, Argentina
| | - Adriana D Garro
- IMIBIO-SL CONICET, Facultad de Química, Bioquímica y Farmacia, Universidad Nacional de San Luis, San Luis, San Luis, Argentina
| | - Gabriela E Feresin
- Instituto de Biotecnología, Facultad de Ingeniería, Universidad Nacional de San Juan, San Juan, San Juan, Argentina
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4
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Goki NH, Tehranizadeh ZA, Saberi MR, Khameneh B, Bazzaz BSF. Structure, Function, and Physicochemical Properties of Pore-forming Antimicrobial Peptides. Curr Pharm Biotechnol 2024; 25:1041-1057. [PMID: 37921126 DOI: 10.2174/0113892010194428231017051836] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2023] [Revised: 08/28/2023] [Accepted: 09/08/2023] [Indexed: 11/04/2023]
Abstract
Antimicrobial peptides (AMPs), a class of antimicrobial agents, possess considerable potential to treat various microbial ailments. The broad range of activity and rare complete bacterial resistance to AMPs make them ideal candidates for commercial development. These peptides with widely varying compositions and sources share recurrent structural and functional features in mechanisms of action. Studying the mechanisms of AMP activity against bacteria may lead to the development of new antimicrobial agents that are more potent. Generally, AMPs are effective against bacteria by forming pores or disrupting membrane barriers. The important structural aspects of cytoplasmic membranes of pathogens and host cells will also be outlined to understand the selective antimicrobial actions. The antimicrobial activities of AMPs are related to multiple physicochemical properties, such as length, sequence, helicity, charge, hydrophobicity, amphipathicity, polar angle, and also self-association. These parameters are interrelated and need to be considered in combination. So, gathering the most relevant available information will help to design and choose the most effective AMPs.
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Affiliation(s)
- Narjes Hosseini Goki
- Department of Pharmaceutical Control, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Zeinab Amiri Tehranizadeh
- Department of Medicinal Chemistry, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Mohammad Reza Saberi
- Department of Medicinal Chemistry, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Bahman Khameneh
- Department of Pharmaceutical Control, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Bibi Sedigheh Fazly Bazzaz
- Department of Pharmaceutical Control, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
- Biotechnology Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran
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Zhou N, An T, Zhang Y, Zhao G, Wei C, Shen X, Li F, Wang X. Improving Photocleavage Efficiency of Photocleavable Protein for Antimicrobial Peptide Histatin 1 Expression. Protein Pept Lett 2024; 31:141-152. [PMID: 38243926 DOI: 10.2174/0109298665276722231212053009] [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: 08/31/2023] [Revised: 11/17/2023] [Accepted: 11/20/2023] [Indexed: 01/22/2024]
Abstract
BACKGROUND Antimicrobial peptides (AMPs) are promising alternative agents for antibiotics to overcome antibiotic resistance problems. But, it is difficult to produce large-scale antimicrobial research due to the toxicity towards expression hosts or degradation by peptidases in the host. Therefore, heterologous recombinant expression of antimicrobial peptides has always been a challenging issue. OBJECTIVES To overcome toxicity to the expression host and low expression level, a new photocleavable protein fusion expression method for antimicrobial peptides is provided.3 Methods: Through directed evolution and high throughput screening, a photocleavable protein mutant R6-2-6-4 with a higher photocleavage efficiency was obtained. The DNA coding sequence of antimicrobial peptide Histatin 1 was fused within the sequence of R6-2-6-4 gene. The fusion gene was successfully expressed in Escherichia coli expression system. RESULTS Antimicrobial peptide Histatin 1 could be successfully expressed and purified by fusing within PhoCl mutant R6-2-6-4. The antimicrobial activity was rarely affected, and the MIC value was 33 ug/mL, which was basically equivalent to 32 ug/mL of the chemically synthesized Histatin 1. After amplification in a 5 L fermenter, the expression of PhoCl mutant (R6-2-6-4)-Histatin1 improved up to 87.6 mg/L in fermenter, and Histatin1 obtained by photocleavage also could up to 11 mg/L. The prepared Histatin1 powder remained stable when stored at 4oC for up to 4 months without any degradation. In addition, the expression and photocleavage of β -Defensin105 and Lysostaphin verified the certain universality of the PhoCl mutant fusion expression system. CONCLUSION Antimicrobial peptides Histatin 1, β -Defensin 105 and Lysostaphin were successfully expressed and purified by photocleavable protein mutant. This may provide a novel strategy to express and purify antimicrobial peptides in the Escherichia coli expression system.
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Affiliation(s)
- Nana Zhou
- Nutrition and Health Research Institute, COFCO Corporation, Beijing 102209, China
| | - Tai An
- Nutrition and Health Research Institute, COFCO Corporation, Beijing 102209, China
| | - Yuan Zhang
- Nutrition and Health Research Institute, COFCO Corporation, Beijing 102209, China
| | - Guomiao Zhao
- Nutrition and Health Research Institute, COFCO Corporation, Beijing 102209, China
| | - Chao Wei
- Nutrition and Health Research Institute, COFCO Corporation, Beijing 102209, China
| | - Xuemei Shen
- Nutrition and Health Research Institute, COFCO Corporation, Beijing 102209, China
| | - Fan Li
- Nutrition and Health Research Institute, COFCO Corporation, Beijing 102209, China
| | - Xiaoyan Wang
- Nutrition and Health Research Institute, COFCO Corporation, Beijing 102209, China
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Acharya Y, Taneja KK, Haldar J. Dual functional therapeutics: mitigating bacterial infection and associated inflammation. RSC Med Chem 2023; 14:1410-1428. [PMID: 37593575 PMCID: PMC10429821 DOI: 10.1039/d3md00166k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2023] [Accepted: 05/21/2023] [Indexed: 08/19/2023] Open
Abstract
The emergence of antimicrobial resistance, coupled with the occurrence of persistent systemic infections, has already complicated clinical therapy efforts. Moreover, infections are also accompanied by strong inflammatory responses, generated by the host's innate and adaptive immune systems. The closely intertwined relationship between bacterial infection and inflammation has multiple implications on the ability of antibacterial therapeutics to tackle infection and inflammation. Particularly, uncontrolled inflammatory responses to infection can lead to sepsis, a life-threatening physiological condition. In this review, we discuss dual-functional antibacterial therapeutics that have potential to be developed for treating inflammation associated with bacterial infections. Immense research is underway that aims to develop new therapeutic agents that, when administered, regulate the excess inflammatory response, i.e. they have immunomodulatory properties along with the desired antibacterial activity. The classes of antibiotics that have immunomodulatory function in addition to antibacterial activity have been reviewed. Host defense peptides and their synthetic mimics are amongst the most sought-after solutions to develop such dual-functional therapeutics. This review also highlights the important classes of peptidomimetics that exhibit both antibacterial and immunomodulatory properties.
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Affiliation(s)
- Yash Acharya
- Antimicrobial Research Laboratory, New Chemistry Unit, Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR) Jakkur Bengaluru 560064 Karnataka India
| | - Kashish Kumar Taneja
- Antimicrobial Research Laboratory, New Chemistry Unit, Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR) Jakkur Bengaluru 560064 Karnataka India
| | - Jayanta Haldar
- Antimicrobial Research Laboratory, New Chemistry Unit, Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR) Jakkur Bengaluru 560064 Karnataka India
- School of Advanced Materials, Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR) Jakkur Bengaluru 560064 Karnataka India
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7
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Pimchan T, Tian F, Thumanu K, Rodtong S, Yongsawatdigul J. Isolation, identification, and mode of action of antibacterial peptides derived from egg yolk hydrolysate. Poult Sci 2023; 102:102695. [PMID: 37120868 PMCID: PMC10172704 DOI: 10.1016/j.psj.2023.102695] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2022] [Revised: 03/30/2023] [Accepted: 03/30/2023] [Indexed: 04/08/2023] Open
Abstract
Egg yolk is a coproduct of egg white processing. The protein hydrolysis of egg yolks to exhibit antimicrobial activity is a strategy for its valorization. The objective of this study is to fractionate antibacterial peptides from pepsin-hydrolyzed egg yolks using flash chromatography. In addition, the mode of actions of the fractionated peptides were elucidated and plausible antibacterial peptides were reported. The fraction 6 (F6) obtained from a C18-flash column exhibited antibacterial activity against Staphylococcus aureus ATCC 29213 and Salmonella typhimurium TISTR 292 at minimal inhibitory concentration (MIC) values of 0.5 to 1 mmol/L (Leucine equivalent). The fractionated peptides induced DNA leakage as monitored by 260 nm. Propidium iodide and SYTO9 staining observed under a confocal microscope suggested the disintegration of cell membranes. Synchrotron-based Fourier-transform infrared spectroscopy analysis revealed that the egg yolk peptides at 1 × MIC induced an alteration of phospholipids at cell membranes and modified conformation of intracellular proteins and nucleic acids. Scanning electron microscopy revealed obvious cell ruptures when S. aureus was treated at 1 × MIC for 4 h, whereas damage of cell membranes and leakage of intracellular components were also observed for the transmission electron microscopy. Egg yolk peptides showed no hemolytic activity in human erythrocytes at concentrations up to 4 mmol/L. Peptide identification by LC-MS/MS revealed 3 cationic and 10 anionic peptides with 100% sequence similarity to apolipoprotein-B of Gallus gallus with hydrophobicity ranging from 27 to 75%. The identified peptide KGGDLGLFEPTL exhibited the highest antibacterial activity toward S. aureus at MIC of 2 mmol/L. Peptides derived from egg yolk hydrolysate present significant potential as antistaphylococcal agents for food and/or pharmaceutical application.
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8
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Roque-Borda CA, Bento da Silva P, Rodrigues MC, Di Filippo LD, Duarte JL, Chorilli M, Vicente EF, Garrido SS, Rogério Pavan F. Pharmaceutical nanotechnology: Antimicrobial peptides as potential new drugs against WHO list of critical, high, and medium priority bacteria. Eur J Med Chem 2022; 241:114640. [PMID: 35970075 DOI: 10.1016/j.ejmech.2022.114640] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2022] [Revised: 07/12/2022] [Accepted: 07/27/2022] [Indexed: 12/29/2022]
Abstract
Nanobiotechnology is a relatively unexplored area that has, nevertheless, shown relevant results in the fight against some diseases. Antimicrobial peptides (AMPs) are biomacromolecules with potential activity against multi/extensively drug-resistant bacteria, with a lower risk of generating bacterial resistance. They can be considered an excellent biotechnological alternative to conventional drugs. However, the application of several AMPs to biological systems is hampered by their poor stability and lifetime, inactivating them completely. Therefore, nanotechnology plays an important role in the development of new AMP-based drugs, protecting and carrying the bioactive to the target. This is the first review article on the different reported nanosystems using AMPs against bacteria listed on the WHO priority list. The current shortage of information implies a nanobiotechnological potential to obtain new drugs or repurpose drugs based on the AMP-drug synergistic effect.
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Affiliation(s)
- Cesar Augusto Roque-Borda
- São Paulo State University (UNESP), School of Pharmaceutical Sciences, Tuberculosis Research Laboratory, Araraquara, São Paulo, CEP 14800-903, Brazil; Universidad Católica de Santa María, Vicerrectorado de Investigación, Facultad de Ciencias Farmacéuticas Bioquímicas y Biotecnológicas, Brazil
| | - Patricia Bento da Silva
- Laboratory of Nanobiotechnology, Department of Genetics and Morphology, Institute of Biological Sciences, University of Brasilia, Brasilia, Brazil
| | - Mosar Corrêa Rodrigues
- Laboratory of Nanobiotechnology, Department of Genetics and Morphology, Institute of Biological Sciences, University of Brasilia, Brasilia, Brazil
| | - Leonardo Delello Di Filippo
- São Paulo State University (UNESP), School of Pharmaceutical Sciences, Department of Drugs and Medicines, Araraquara, São Paulo, CEP 14800-903, Brazil
| | - Jonatas L Duarte
- São Paulo State University (UNESP), School of Pharmaceutical Sciences, Department of Drugs and Medicines, Araraquara, São Paulo, CEP 14800-903, Brazil
| | - Marlus Chorilli
- São Paulo State University (UNESP), School of Pharmaceutical Sciences, Department of Drugs and Medicines, Araraquara, São Paulo, CEP 14800-903, Brazil
| | - Eduardo Festozo Vicente
- São Paulo State University (UNESP), School of Sciences and Engineering, Tupã, São Paulo, CEP 17602-496, Brazil
| | - Saulo Santesso Garrido
- São Paulo State University (UNESP), Institute of Chemistry, Araraquara, São Paulo, CEP 14801-902, Brazil
| | - Fernando Rogério Pavan
- São Paulo State University (UNESP), School of Pharmaceutical Sciences, Tuberculosis Research Laboratory, Araraquara, São Paulo, CEP 14800-903, Brazil.
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Anticancer peptides mechanisms, simple and complex. Chem Biol Interact 2022; 368:110194. [PMID: 36195187 DOI: 10.1016/j.cbi.2022.110194] [Citation(s) in RCA: 24] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2022] [Revised: 09/12/2022] [Accepted: 09/22/2022] [Indexed: 11/22/2022]
Abstract
Peptide therapy has started since 1920s with the advent of insulin application, and now it has emerged as a new approach in treatment of diseases including cancer. Using anti-cancer peptides (ACPs) is a promising way of cancer therapy as ACPs are continuing to be approved and arrived at major pharmaceutical markets. Traditional cancer treatments face different problems like intensive adverse effects to patient's body, cell resistance to conventional chemical drugs and in some worse cases the occurrence of cell multidrug resistance (MDR) of cancerous tissues against chemotherapy. On the other hand, there are some benefits conceived for peptides usage in treatment of diseases specifically cancer, as these compounds present favorable characteristics such as smaller size, high activity, low immunogenicity, good biocompatibility in vivo, convenient and rapid way of synthesis, amenable to sequence modification and revision and there is no limitation for the type of cargo they carry. It is possible to achieve an optimum molecular and functional structure of peptides based on previous experience and bank of peptide motif data which may result in novel peptide design. Bioactive peptides are able to form pores in cell membrane and induce necrosis or apoptosis of abnormal cells. Moreover, recent researches have focused on the tumor recognizing peptide motifs with the ability to permeate to cancerous cells with the aim of cancer treatment at earlier stages. In this strategy the most important factors for addressing cancer are choosing peptides with easy accessibility to tumor cell without cytotoxicity effect towards normal cells. The peptides must also meet acceptable pharmacokinetic requirements. In this review, the characteristics of peptides and cancer cells are discussed. The various mechanisms of peptides' action proposed against cancer cells make the next part of discussion. It will be followed by giving information on peptides application, various methods of peptide designing along with introducing various databases. Future aspects of peptides for employing in area of cancer treatment come as conclusion at the end.
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Effects of Medicinal Leech-Related Cationic Antimicrobial Peptides on Human Blood Cells and Plasma. Molecules 2022; 27:molecules27185848. [PMID: 36144584 PMCID: PMC9503446 DOI: 10.3390/molecules27185848] [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: 08/05/2022] [Revised: 08/26/2022] [Accepted: 09/05/2022] [Indexed: 11/17/2022] Open
Abstract
Cationic antimicrobial peptides (CAMPs) are considered as next-generation antibiotics with a lower probability of developing bacterial resistance. In view of potential clinical use, studies on CAMP biocompatibility are important. This work aimed to evaluate the behavior of synthetic short CAMPs (designed using bioinformatic analysis of the medicinal leech genome and microbiome) in direct contact with blood cells and plasma. Eight CAMPs were included in the study. Hemolysis and lactate dehydrogenase assays showed that the potency to disrupt erythrocyte, neutrophil and mononuclear cell membranes descended in the order pept_1 > pept_3 ~ pept_5 > pept_2 ~ pept_4. Pept_3 caused both cell lysis and aggregation. Blood plasma and albumin inhibited the CAMP-induced hemolysis. The chemiluminescence method allowed the detection of pept_3-mediated neutrophil activation. In plasma coagulation assays, pept_3 prolonged the activated partial thromboplastin time (APTT) and prothrombin time (at 50 μM by 75% and 320%, respectively). Pept_3 was also capable of causing fibrinogen aggregation. Pept_6 prolonged APTT (at 50 μM by 115%). Pept_2 was found to combine higher bactericidal activity with lower effects on cells and coagulation. Our data emphasize the necessity of investigating CAMP interaction with plasma.
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11
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Antibacterial and Anticancer Activities of Pleurocidin-Amide, a Potent Marine Antimicrobial Peptide Derived from Winter Flounder, Pleuronectes americanus. Mar Drugs 2022; 20:md20080519. [PMID: 36005521 PMCID: PMC9409841 DOI: 10.3390/md20080519] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2022] [Revised: 08/11/2022] [Accepted: 08/12/2022] [Indexed: 12/02/2022] Open
Abstract
The extensive use of conventional antibiotics has led to the growing emergence of many resistant strains of pathogenic bacteria. Evidence suggests that cationic antimicrobial peptides (AMPs) have the greatest potential to serve as traditional antibiotic substitutes. Recent studies have also reported that certain AMPs have selective toxicity toward various types of cancer cells. The electrostatic attraction between the negatively charged membrane components and AMPs is believed to play a crucial role in the disruption of bacterial and cancer cell membranes. In the current study, we used a potent AMP called Pleurocidin (Ple) derived from winter flounder Pleuronectes americanus and its C-terminal-amidated derivative Pleurocidin-amide (Ple-a), and evaluated their antibacterial and anticancer activities. Our results indicated that both Ple and Ple-a exhibited significant antibacterial activity against a broad spectrum of Gram-positive and Gram-negative bacteria, especially marine pathogens, with MIC values ranging from 0.25 to 32 μg/mL. These peptides are also potent against several multidrug-resistant (MDR) bacterial strains, with MIC values ranging from 2 to 256 μg/mL. When used in combination with certain antibiotics, they exhibited a synergistic effect against MDR E. coli. Ple and Ple-a also showed notable cytotoxicity toward various cancer cell lines, with IC50 values ranging from 11 to 340 μM, while normal mouse fibroblast 3T3 cells were less susceptible to these peptides. Ple-a was then selected to study its anticancer mechanism toward A549 human lung adenocarcinoma cells. Western blot analysis and confocal microscopy showed that Ple-a could inhibit autophagy of A549 cells, and induce apoptosis 48 h after treatment. Our findings provided support for the future application of Ple-a as potential therapeutic agent for bacterial infections and cancer treatment.
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12
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Synthetic Antimicrobial Immunomodulatory Peptides: Ongoing Studies and Clinical Trials. Antibiotics (Basel) 2022; 11:antibiotics11081062. [PMID: 36009931 PMCID: PMC9405281 DOI: 10.3390/antibiotics11081062] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2022] [Revised: 07/30/2022] [Accepted: 08/03/2022] [Indexed: 11/25/2022] Open
Abstract
The increasingly widespread antimicrobial resistance forces the search for new antimicrobial substances capable of fighting infection. Antimicrobial peptides (AMPs) and their synthetic analogs form an extensive group of compounds of great structural diversity and multifunctionality, different modes of antimicrobial action, and considerable market potential. Some AMPs, in addition to their proven antibacterial, antifungal, and antiviral activity, also demonstrate anti-inflammatory and immunomodulatory capabilities; these are called innate defense regulator (IDR) peptides. IDR peptides stimulate or inhibit the body’s immune system, e.g., by stimulating leukocyte migration to the site of infection, driving macrophage differentiation and activation, providing chemotactic action for neutrophils, degranulation and activation of mast cells, altering chemokine and cytokine production, and even induction of angiogenesis and wound healing. Such multifunctional immunomodulatory peptide molecules are currently being investigated and developed. Exploring and utilizing IDR peptides as an indirect weapon against infectious diseases could represent a completely new strategy to cope with the issue of antimicrobial resistance.
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Zhao Y, Wang XY, Sun Y, Li Z, Liu T, Liu QM, Chen J. Truncated analog Brevinin2-CE-N26V5K: Revelation the Augmentation of Antimicrobial Activity. World J Microbiol Biotechnol 2022; 38:162. [PMID: 35834028 DOI: 10.1007/s11274-022-03333-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2022] [Accepted: 06/10/2022] [Indexed: 11/30/2022]
Abstract
Brevinin2-CE (B2CE), a natural peptide containing 37 amino acids, was first isolated from the skin secretions of the Chinese forest frog Rana chensinensis. B2CE shows good antibacterial activity. In this study, a series of B2CE analogs with differences in cationicity, α-helicity, hydrophobicity and amphipathic properties were designed through chain-length deletion and amino acid substitution. The most potent, nontoxic analog, B2CE-N26V5K, was identified by examination of its antibacterial activity, hemolytic activity, and stability under physiological conditions. The increased cationicity, hydrophobicity and more obvious hydrophilic and hydrophobic surface of B2CE-N26-N16WA18KG23K did not improve the antibacterial activity but increased the hemolytic activity of this modified peptide. The helicity might promote antibacterial activity for brevinin-2 peptides, as the 15-aa analogs with lower helicity show decreased potency against different test bacteria (approximately 2- to 72-fold) compared to B2CE-N26V5K. Additionally, the results indicated that the "Rana box" does not affect the antimicrobial activity of brevinin-2 peptides, as B2CE, B2CE-nonDS and B2CE-C31-37 S have similar strong inhibitory effects on both gram-positive and gram-negative bacteria. However, the "Rana box" does affect the hemolytic activity, as the HC50 values of the 3 peptides range from 25 ~ 130 µM. Furthermore, B2CE-N26V5K caused obvious morphological alterations of the bacterial surfaces, as shown by atomic force microscopy. Additionally, B2CE-N26V5K exhibited strong membrane-disrupting activity when examined using the LIVE/DEAD Bac Light Bacterial Viability Kit. Thus, the antibacterial effect of B2CE-N26V5K on gram-negative and gram-positive bacteria may be caused by cell membrane attack. In conclusion, the excellent candidate B2CE-N26V5K was obtained and has application prospects as a novel anti-infective agent.
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Affiliation(s)
- Yi Zhao
- College of Life Sciences, Shaanxi Normal University, 710119, Xi'an, P. R. China
| | - Xiao-Yan Wang
- College of Life Sciences, Shaanxi Normal University, 710119, Xi'an, P. R. China
| | - Yan Sun
- College of Life Sciences, Shaanxi Normal University, 710119, Xi'an, P. R. China.
| | - Zhi Li
- College of Life Sciences, Shaanxi Normal University, 710119, Xi'an, P. R. China.
| | - Tao Liu
- College of Life Sciences, Shaanxi Normal University, 710119, Xi'an, P. R. China
| | - Qing-Mei Liu
- College of Life Sciences, Shaanxi Normal University, 710119, Xi'an, P. R. China
| | - Jingyi Chen
- College of Life Sciences, Shaanxi Normal University, 710119, Xi'an, P. R. China
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14
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Sansi MS, Iram D, Zanab S, Vij S, Puniya AK, Singh A, Ashutosh, Meena S. Antimicrobial bioactive peptides from goat Milk proteins: In silico prediction and analysis. J Food Biochem 2022; 46:e14311. [PMID: 35789493 DOI: 10.1111/jfbc.14311] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2022] [Revised: 05/30/2022] [Accepted: 06/07/2022] [Indexed: 01/15/2023]
Abstract
The main goal of this study was to assess the potential proteins of goat milk (i.e. α-s1-casein, α-s2-casein, β-casein, κ-casein, α-lactoglobulin and β-lactalbumin) as precursors of antimicrobial peptides (AMPs). Bioinformatics tools such as BIOPEP-UWM (enzyme action) were used for the in silico gastrointestinal digestion via a cocktail of pepsin, trypsin, and chymotrypsin A. The antimicrobial activity of peptides was predicted by using four algorithms, including Random Forest, Support Vector Machines, Artificial Neural Network and Discriminant Analysis on CAMPR3 online server, which works on Hidden Markov Models. Different online tools predicted the physiochemical properties, allergenicity, and toxicity of peptides as well. In silico gastrointestinal digestion simulation of proteins by enzymes cocktail yielded a total of 83 potential AMPs, with thirteen peptides being confident by all four algorithms. More AMPs were released from β-casein (21) than from β-lactoglobulin (16), α-s1-casein (15), α-s2-casein (12), κ-casein (11) and α-lactalbumin (9). A total of 17 peptides were cationic, and the majority of the peptides were extended AMPs. These peptides were released from α-s1-casein (SGK, IQK), α-s2-casein (SIR, AIH, TQPK), β-casein (GPVR, AVPQR, AIAR, GVPK, SQPK, PVPQK, IH, VPK), k-casein (AIPPK, QQR, IAK, TVPAK). All of the AMPs were anticipated to be non-toxic, and 54 of the 83 peptides were confirmed to be non-allergic, with the remaining 29 suspected of being allergenic and 31 to be predicted to have good water solubility. Further the molecular docking was used to evaluate the potent dihydropteroate synthase (DHPS) inhibitors. On the basis of ligand binding energy, 17 predicted AMPs were selected and then analyzed by AutoDock tools. Among the 17 AMPs, 3 AMPs were predicted as high-potent antimicrobial. Based on these findings, in silico investigations reveal that proteins of goat milk are a potential source of AMPs. These peptides can be synthesized and improved for use in the food sector. PRACTICAL APPLICATIONS: Goat milk is regarded as a high-quality milk protein source. According to this study, goat milk protein is a possible source of AMPs, and therefore, most important AMPs can be synthesized and developed for use in the food sector.
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Affiliation(s)
- Manish Singh Sansi
- Animal Biochemistry Division, National Dairy Research Institute, Karnal, Haryana, India
| | - Daraksha Iram
- Dairy Microbiology Division, National Dairy Research Institute, Karnal, Haryana, India
| | - Sameena Zanab
- Department of Chemistry, Chaudhary Charan Singh University, Meerut, Uttar Pradesh, India
| | - Shilpa Vij
- Dairy Microbiology Division, National Dairy Research Institute, Karnal, Haryana, India
| | - Anil Kumar Puniya
- Dairy Microbiology Division, National Dairy Research Institute, Karnal, Haryana, India
| | - Ajeet Singh
- Quality and Basic Sciences, Indian Institute of Wheat and Barley Research, Karnal, Haryana, India
| | - Ashutosh
- Animal Physiology Division, Dairy Research Institute, Karnal, Haryana, India
| | - Sunita Meena
- Animal Biochemistry Division, National Dairy Research Institute, Karnal, Haryana, India
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15
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Woods C, Woolley L, Partridge G, Chen M, Haney EF, Hancock REW, Buller N, Currie A. Assessing the Activity of Antimicrobial Peptides Against Common Marine Bacteria Located in Rotifer (Brachionus plicatilis) Cultures. Probiotics Antimicrob Proteins 2022; 14:620-629. [PMID: 35612776 PMCID: PMC9246773 DOI: 10.1007/s12602-022-09928-2] [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] [Accepted: 02/11/2022] [Indexed: 11/05/2022]
Abstract
Rotifers are used as the first feed for marine fish larvae and are grown in large cultures that have high loads of organic matter and heterotrophic bacteria; these bacteria are passed on to the developing fish larvae and can potentially lead to bacterial infections. A modified minimum inhibitory concentration (MIC) protocol for antimicrobial peptides was used to determine the potency of ten antimicrobial peptides (AMPs) in artificial seawater relevant to a rotifer culture (salinity of 25‰) against common marine pathogens. All of the AMPs had antimicrobial activity against the bacterial isolates when the salt concentration was approximately zero. However, in high salt concentrations, the majority of the AMPs had an MIC value greater than 65 µg mL−1 in artificial seawater (25‰). The only exceptions were 2009 (32.5 µg mL−1) and 3002 (32.5 µg mL−1) against Vibrio rotiferianus and Tenacibaculum discolor, respectively. The selected synthetic AMPs were not effective at reducing the bacterial load in brackish salt concentrations of a typical commercial rotifer culture (25‰).
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Affiliation(s)
- Chelsea Woods
- College of Science, Murdoch University, Engineering & Education, HealthPerth, WA, Australia. .,Department of Primary Industries and Regional Development, Fremantle, Perth, WA, 6160, Australia.
| | - Lindsey Woolley
- College of Science, Murdoch University, Engineering & Education, HealthPerth, WA, Australia.,Department of Primary Industries and Regional Development, Fremantle, Perth, WA, 6160, Australia
| | - Gavin Partridge
- College of Science, Murdoch University, Engineering & Education, HealthPerth, WA, Australia.,Department of Primary Industries and Regional Development, Fremantle, Perth, WA, 6160, Australia
| | - Mengqi Chen
- Department of Primary Industries and Regional Development, Fremantle, Perth, WA, 6160, Australia
| | - Evan F Haney
- Centre for Microbial Diseases and Immunity Research, Department of Microbiology and Immunology, University of British Columbia, Vancouver, BC, Canada
| | - Robert E W Hancock
- Centre for Microbial Diseases and Immunity Research, Department of Microbiology and Immunology, University of British Columbia, Vancouver, BC, Canada
| | - Nicky Buller
- College of Science, Murdoch University, Engineering & Education, HealthPerth, WA, Australia.,Department of Primary Industries and Regional Development, Fremantle, Perth, WA, 6160, Australia
| | - Andrew Currie
- Centre for Molecular Medicine and Innovative Therapeutics, Murdoch University, Perth, WA, Australia.,Wesfarmers Centre for Vaccines and Infectious Diseases, Telethon Kids Institute, Perth, WA, Australia
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16
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Tang WH, Wang SH, Wang CF, Mou Y, Lin MG, Hsiao CD, Liao YD. The lipid components of high-density lipoproteins (HDL) are essential for the binding and transportation of antimicrobial peptides in human serum. Sci Rep 2022; 12:2576. [PMID: 35173253 PMCID: PMC8850444 DOI: 10.1038/s41598-022-06640-7] [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] [Received: 10/12/2021] [Accepted: 01/19/2022] [Indexed: 11/26/2022] Open
Abstract
Antimicrobial peptides (AMPs) have been developed for the treatment of bacterial infections, but their applications are limited to topical infections since they are sequestered and inhibited in serum. Here we have discovered that the inhibition of AMPs by human serum was mediated through high-density lipoproteins (HDL) which are known to remove cholesterol from peripheral tissues. The susceptibility of AMPs to HDL varied depending on the degree of hydrophobicity of AMPs and their binding affinities to HDL. The phospholipids, such as phosphatidylcholine, of HDL were essential for AMP-binding. The dynamic binding interactions between AMPs and HDL were mediated through the hydrophobic interactions rather than by ionic strength. Interestingly, some AMPs, such as SMAP29, dissociated from the AMP-HDL complex and translocated to bacteria upon contact, while some AMPs, such as LL37, remained in complex with HDL. These results suggest that HDL binds AMPs and facilitates the translocation of them to the bacteria.
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Affiliation(s)
- Wen-Hung Tang
- Institute of Biomedical Sciences, Academia Sinica, Taipei, 115, Taiwan
| | - Shi-Han Wang
- Institute of Biomedical Sciences, Academia Sinica, Taipei, 115, Taiwan
| | - Chiu-Feng Wang
- Institute of Biomedical Sciences, Academia Sinica, Taipei, 115, Taiwan
| | - Yun Mou
- Institute of Biomedical Sciences, Academia Sinica, Taipei, 115, Taiwan
| | - Min-Guan Lin
- Institute of Molecular Biology, Academia Sinica, Taipei, 115, Taiwan
| | - Chwan-Deng Hsiao
- Institute of Molecular Biology, Academia Sinica, Taipei, 115, Taiwan
| | - You-Di Liao
- Institute of Biomedical Sciences, Academia Sinica, Taipei, 115, Taiwan.
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17
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Akbarian M, Khani A, Eghbalpour S, Uversky VN. Bioactive Peptides: Synthesis, Sources, Applications, and Proposed Mechanisms of Action. Int J Mol Sci 2022; 23:ijms23031445. [PMID: 35163367 PMCID: PMC8836030 DOI: 10.3390/ijms23031445] [Citation(s) in RCA: 108] [Impact Index Per Article: 54.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2022] [Revised: 01/25/2022] [Accepted: 01/25/2022] [Indexed: 02/01/2023] Open
Abstract
Bioactive peptides are a group of biological molecules that are normally buried in the structure of parent proteins and become active after the cleavage of the proteins. Another group of peptides is actively produced and found in many microorganisms and the body of organisms. Today, many groups of bioactive peptides have been marketed chemically or recombinantly. This article reviews the various production methods and sources of these important/ubiquitous and useful biomolecules. Their applications, such as antimicrobial, antihypertensive, antioxidant activities, blood-lipid-lowering effect, opioid role, antiobesity, ability to bind minerals, antidiabetic, and antiaging effects, will be explored. The types of pathways proposed for bioactive applications will be in the next part of the article, and at the end, the future perspectives of bioactive peptides will be reviewed. Reading this article is recommended for researchers interested in various fields of physiology, microbiology, biochemistry, and nanotechnology and food industry professionals.
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Affiliation(s)
- Mohsen Akbarian
- Department of Chemistry, National Cheng Kung University, Tainan 701, Taiwan;
| | - Ali Khani
- Department of Radiation Sciences, Faculty of Applied Medicine, Iran University of Medical Sciences, Tehran 1449614535, Iran;
| | - Sara Eghbalpour
- Department of Obstetrics and Gynecology Surgery, Babol University of Medical Sciences, Babol 4717647745, Iran;
| | - Vladimir N. Uversky
- Department of Molecular Medicine and Health Byrd Alzheimer’s Institute, Morsani College of Medicine, University of South Florida, Tampa, FL 33612, USA
- Correspondence: ; Tel.: +1-(813)-974-5816
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18
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Yu L, Li K, Zhang J, Jin H, Saleem A, Song Q, Jia Q, Li P. Antimicrobial Peptides and Macromolecules for Combating Microbial Infections: From Agents to Interfaces. ACS APPLIED BIO MATERIALS 2022; 5:366-393. [PMID: 35072444 DOI: 10.1021/acsabm.1c01132] [Citation(s) in RCA: 43] [Impact Index Per Article: 21.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Bacterial resistance caused by the overuse of antibiotics and the shelter of biofilms has evolved into a global health crisis, which drives researchers to continuously explore antimicrobial molecules and strategies to fight against drug-resistant bacteria and biofilm-associated infections. Cationic antimicrobial peptides (AMPs) are considered to be a category of potential alternative for antibiotics owing to their excellent bactericidal potency and lesser likelihood of inducing drug resistance through their distinctive antimicrobial mechanisms. In this review, the hitherto reported plentiful action modes of AMPs are systematically classified into 15 types and three categories (membrane destructive, nondestructive membrane disturbance, and intracellular targeting mechanisms). Besides natural AMPs, cationic polypeptides, synthetic polymers, and biopolymers enable to achieve tunable antimicrobial properties by optimizing their structures. Subsequently, the applications of these cationic antimicrobial agents at the biointerface as contact-active surface coatings and multifunctional wound dressings are also emphasized here. At last, we provide our perspectives on the development of clinically significant cationic antimicrobials and related challenges in the translation of these materials.
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Affiliation(s)
- Luofeng Yu
- Frontiers Science Center for Flexible Electronics (FSCFE), Xi'an Institute of Flexible Electronics (IFE) and Xi'an Institute of Biomedical Materials & Engineering (IBME), Northwestern Polytechnical University, 127 West Youyi Road, Xi'an 710072, China
| | - Kunpeng Li
- Frontiers Science Center for Flexible Electronics (FSCFE), Xi'an Institute of Flexible Electronics (IFE) and Xi'an Institute of Biomedical Materials & Engineering (IBME), Northwestern Polytechnical University, 127 West Youyi Road, Xi'an 710072, China
| | - Jing Zhang
- Frontiers Science Center for Flexible Electronics (FSCFE), Xi'an Institute of Flexible Electronics (IFE) and Xi'an Institute of Biomedical Materials & Engineering (IBME), Northwestern Polytechnical University, 127 West Youyi Road, Xi'an 710072, China
| | - Haoyu Jin
- Frontiers Science Center for Flexible Electronics (FSCFE), Xi'an Institute of Flexible Electronics (IFE) and Xi'an Institute of Biomedical Materials & Engineering (IBME), Northwestern Polytechnical University, 127 West Youyi Road, Xi'an 710072, China
| | - Atif Saleem
- Frontiers Science Center for Flexible Electronics (FSCFE), Xi'an Institute of Flexible Electronics (IFE) and Xi'an Institute of Biomedical Materials & Engineering (IBME), Northwestern Polytechnical University, 127 West Youyi Road, Xi'an 710072, China
| | - Qing Song
- Frontiers Science Center for Flexible Electronics (FSCFE), Xi'an Institute of Flexible Electronics (IFE) and Xi'an Institute of Biomedical Materials & Engineering (IBME), Northwestern Polytechnical University, 127 West Youyi Road, Xi'an 710072, China
| | - Qingyan Jia
- Frontiers Science Center for Flexible Electronics (FSCFE), Xi'an Institute of Flexible Electronics (IFE) and Xi'an Institute of Biomedical Materials & Engineering (IBME), Northwestern Polytechnical University, 127 West Youyi Road, Xi'an 710072, China
| | - Peng Li
- Frontiers Science Center for Flexible Electronics (FSCFE), Xi'an Institute of Flexible Electronics (IFE) and Xi'an Institute of Biomedical Materials & Engineering (IBME), Northwestern Polytechnical University, 127 West Youyi Road, Xi'an 710072, China
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19
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OUP accepted manuscript. J Antimicrob Chemother 2022; 77:1012-1019. [DOI: 10.1093/jac/dkac014] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2021] [Accepted: 12/28/2021] [Indexed: 11/12/2022] Open
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20
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Serna N, Carratalá JV, Conchillo-Solé O, Martínez-Torró C, Unzueta U, Mangues R, Ferrer-Miralles N, Daura X, Vázquez E, Villaverde A. Antibacterial Activity of T22, a Specific Peptidic Ligand of the Tumoral Marker CXCR4. Pharmaceutics 2021; 13:1922. [PMID: 34834337 PMCID: PMC8621837 DOI: 10.3390/pharmaceutics13111922] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2021] [Revised: 10/21/2021] [Accepted: 11/05/2021] [Indexed: 12/13/2022] Open
Abstract
CXCR4 is a cytokine receptor used by HIV during cell attachment and infection. Overexpressed in the cancer stem cells of more than 20 human neoplasias, CXCR4 is a convenient antitumoral drug target. T22 is a polyphemusin-derived peptide and an effective CXCR4 ligand. Its highly selective CXCR4 binding can be exploited as an agent for the cell-targeted delivery and internalization of associated antitumor drugs. Sharing chemical and structural traits with antimicrobial peptides (AMPs), the capability of T22 as an antibacterial agent remains unexplored. Here, we have detected T22-associated antimicrobial activity and biofilm formation inhibition over Escherichia coli, Staphylococcus aureus and Pseudomonas aeruginosa, in a spectrum broader than the reference AMP GWH1. In contrast to GWH1, T22 shows neither cytotoxicity over mammalian cells nor hemolytic activity and is active when displayed on protein-only nanoparticles through genetic fusion. Under the pushing need for novel antimicrobial agents, the discovery of T22 as an AMP is particularly appealing, not only as its mere addition to the expanding catalogue of antibacterial drugs. The recognized clinical uses of T22 might allow its combined and multivalent application in complex clinical conditions, such as colorectal cancer, that might benefit from the synchronous destruction of cancer stem cells and local bacterial biofilms.
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Affiliation(s)
- Naroa Serna
- Institut de Biotecnologia i de Biomedicina, Universitat Autònoma de Barcelona, 08193 Cerdanyola del Vallès, Spain; (N.S.); (J.V.C.); (O.C.-S.); (C.M.-T.); (N.F.-M.); (E.V.)
- Departament de Genètica i de Microbiologia, Universitat Autònoma de Barcelona, 08193 Cerdanyola del Vallès, Spain;
- CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), 28029 Madrid, Spain;
| | - José Vicente Carratalá
- Institut de Biotecnologia i de Biomedicina, Universitat Autònoma de Barcelona, 08193 Cerdanyola del Vallès, Spain; (N.S.); (J.V.C.); (O.C.-S.); (C.M.-T.); (N.F.-M.); (E.V.)
- Departament de Genètica i de Microbiologia, Universitat Autònoma de Barcelona, 08193 Cerdanyola del Vallès, Spain;
- CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), 28029 Madrid, Spain;
| | - Oscar Conchillo-Solé
- Institut de Biotecnologia i de Biomedicina, Universitat Autònoma de Barcelona, 08193 Cerdanyola del Vallès, Spain; (N.S.); (J.V.C.); (O.C.-S.); (C.M.-T.); (N.F.-M.); (E.V.)
- Departament de Genètica i de Microbiologia, Universitat Autònoma de Barcelona, 08193 Cerdanyola del Vallès, Spain;
| | - Carlos Martínez-Torró
- Institut de Biotecnologia i de Biomedicina, Universitat Autònoma de Barcelona, 08193 Cerdanyola del Vallès, Spain; (N.S.); (J.V.C.); (O.C.-S.); (C.M.-T.); (N.F.-M.); (E.V.)
| | - Ugutz Unzueta
- Departament de Genètica i de Microbiologia, Universitat Autònoma de Barcelona, 08193 Cerdanyola del Vallès, Spain;
- CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), 28029 Madrid, Spain;
- Biomedical Research Institute Sant Pau (IIB-Sant Pau), Hospital de la Santa Creu i Sant Pau, 08025 Barcelona, Spain
- Josep Carreras Research Institute, 08916 Barcelona, Spain
| | - Ramón Mangues
- CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), 28029 Madrid, Spain;
- Biomedical Research Institute Sant Pau (IIB-Sant Pau), Hospital de la Santa Creu i Sant Pau, 08025 Barcelona, Spain
- Josep Carreras Research Institute, 08916 Barcelona, Spain
| | - Neus Ferrer-Miralles
- Institut de Biotecnologia i de Biomedicina, Universitat Autònoma de Barcelona, 08193 Cerdanyola del Vallès, Spain; (N.S.); (J.V.C.); (O.C.-S.); (C.M.-T.); (N.F.-M.); (E.V.)
- Departament de Genètica i de Microbiologia, Universitat Autònoma de Barcelona, 08193 Cerdanyola del Vallès, Spain;
- CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), 28029 Madrid, Spain;
| | - Xavier Daura
- Institut de Biotecnologia i de Biomedicina, Universitat Autònoma de Barcelona, 08193 Cerdanyola del Vallès, Spain; (N.S.); (J.V.C.); (O.C.-S.); (C.M.-T.); (N.F.-M.); (E.V.)
- CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), 28029 Madrid, Spain;
- Catalan Institution for Research and Advanced Studies (ICREA), 08010 Barcelona, Spain
| | - Esther Vázquez
- Institut de Biotecnologia i de Biomedicina, Universitat Autònoma de Barcelona, 08193 Cerdanyola del Vallès, Spain; (N.S.); (J.V.C.); (O.C.-S.); (C.M.-T.); (N.F.-M.); (E.V.)
- Departament de Genètica i de Microbiologia, Universitat Autònoma de Barcelona, 08193 Cerdanyola del Vallès, Spain;
- CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), 28029 Madrid, Spain;
| | - Antonio Villaverde
- Institut de Biotecnologia i de Biomedicina, Universitat Autònoma de Barcelona, 08193 Cerdanyola del Vallès, Spain; (N.S.); (J.V.C.); (O.C.-S.); (C.M.-T.); (N.F.-M.); (E.V.)
- Departament de Genètica i de Microbiologia, Universitat Autònoma de Barcelona, 08193 Cerdanyola del Vallès, Spain;
- CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), 28029 Madrid, Spain;
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21
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Prediction of antimicrobial peptides toxicity based on their physico-chemical properties using machine learning techniques. BMC Bioinformatics 2021; 22:549. [PMID: 34758751 PMCID: PMC8582201 DOI: 10.1186/s12859-021-04468-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2021] [Accepted: 11/01/2021] [Indexed: 11/20/2022] Open
Abstract
Background Antimicrobial peptides are promising tools to fight against ever-growing antibiotic resistance. However, despite many advantages, their toxicity to mammalian cells is a critical obstacle in clinical application and needs to be addressed. Results In this study, by using an up-to-date dataset, a machine learning model has been trained successfully to predict the toxicity of antimicrobial peptides. The comprehensive set of features of both physico-chemical and linguistic-based with local and global essences have undergone feature selection to identify key properties behind toxicity of antimicrobial peptides. After feature selection, the hybrid model showed the best performance with a recall of 0. 876 and a F1 score of 0. 849. Conclusions The obtained model can be useful in extracting AMPs with low toxicity from AMP libraries in clinical applications. On the other hand, several properties with local nature including positions of strand forming and hydrophobic residues in final selected features show that these properties are critical definer of peptide properties and should be considered in developing models for activity prediction of peptides. The executable code is available at https://git.io/JRZaT. Supplementary Information The online version contains supplementary material available at 10.1186/s12859-021-04468-y.
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Guo HN, Tong YC, Wang HL, Zhang J, Li ZX, Abbas Z, Yang TT, Liu MY, Chen PY, Hua ZC, Yan XN, Cheng Q, Ahmat M, Wang JY, Zhang LL, Wei XB, Liao XD, Zhang RJ. Novel Hybrid Peptide Cathelicidin 2 (1-13)-Thymopentin (TP5) and Its Derived Peptides with Effective Antibacterial, Antibiofilm, and Anti-Adhesion Activities. Int J Mol Sci 2021; 22:11681. [PMID: 34769113 PMCID: PMC8583881 DOI: 10.3390/ijms222111681] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2021] [Revised: 10/22/2021] [Accepted: 10/24/2021] [Indexed: 02/08/2023] Open
Abstract
The increasing numbers of infections caused by multidrug-resistant (MDR) pathogens highlight the urgent need for new alternatives to conventional antibiotics. Antimicrobial peptides have the potential to be promising alternatives to antibiotics because of their effective bactericidal activity and highly selective toxicity. The present study was conducted to investigate the antibacterial, antibiofilm, and anti-adhesion activities of different CTP peptides (CTP: the original hybrid peptide cathelicidin 2 (1-13)-thymopentin (TP5); CTP-NH2: C-terminal amidated derivative of cathelicidin 2 (1-13)-TP5; CTPQ: glutamine added at the C-terminus of cathelicidin 2 (1-13)-TP5) by determining the minimal inhibitory concentrations (MICs), minimal bactericidal concentrations (MBCs), propidium iodide uptake, and analysis by scanning electron microscopy, transmission electron microscopy, and confocal laser scanning microscopy). The results showed that CTPs had broad-spectrum antibacterial activity against different gram-positive and gram-negative bacteria, with MICs against the tested strains varying from 2 to 64 μg/mL. CTPs at the MBC (2 × MIC 64 μg/mL) showed strong bactericidal effects on a standard methicillin-resistant Staphylococcus aureus strain ATCC 43300 after co-incubation for 6 h through disruption of the bacterial membrane. In addition, CTPs at 2 × MIC also displayed effective inhibition activity of several S. aureus strains with a 40-90% decrease in biofilm formation by killing the bacteria embedded in the biofilms. CTPs had low cytotoxicity on the intestinal porcine epithelial cell line (IPEC-J2) and could significantly decrease the rate of adhesion of S. aureus ATCC 43300 on IPEC-J2 cells. The current study proved that CTPs have effective antibacterial, antibiofilm, and anti-adhesion activities. Overall, this study contributes to our understanding of the possible antibacterial and antibiofilm mechanisms of CTPs, which might be an effective anti-MDR drug candidate.
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Affiliation(s)
- He-Nan Guo
- Laboratory of Feed Biotechnology, State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China; (H.-N.G.); (Y.-C.T.); (H.-L.W.); (J.Z.); (Z.A.); (T.-T.Y.); (M.-Y.L.); (P.-Y.C.); (Z.-C.H.); (Q.C.); (M.A.); (J.-Y.W.)
| | - Yu-Cui Tong
- Laboratory of Feed Biotechnology, State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China; (H.-N.G.); (Y.-C.T.); (H.-L.W.); (J.Z.); (Z.A.); (T.-T.Y.); (M.-Y.L.); (P.-Y.C.); (Z.-C.H.); (Q.C.); (M.A.); (J.-Y.W.)
| | - Hui-Li Wang
- Laboratory of Feed Biotechnology, State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China; (H.-N.G.); (Y.-C.T.); (H.-L.W.); (J.Z.); (Z.A.); (T.-T.Y.); (M.-Y.L.); (P.-Y.C.); (Z.-C.H.); (Q.C.); (M.A.); (J.-Y.W.)
| | - Jing Zhang
- Laboratory of Feed Biotechnology, State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China; (H.-N.G.); (Y.-C.T.); (H.-L.W.); (J.Z.); (Z.A.); (T.-T.Y.); (M.-Y.L.); (P.-Y.C.); (Z.-C.H.); (Q.C.); (M.A.); (J.-Y.W.)
| | - Zhong-Xuan Li
- College of Bioengineering, Sichuan University of Science & Engineering, Zigong 643000, China;
| | - Zaheer Abbas
- Laboratory of Feed Biotechnology, State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China; (H.-N.G.); (Y.-C.T.); (H.-L.W.); (J.Z.); (Z.A.); (T.-T.Y.); (M.-Y.L.); (P.-Y.C.); (Z.-C.H.); (Q.C.); (M.A.); (J.-Y.W.)
| | - Tian-Tian Yang
- Laboratory of Feed Biotechnology, State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China; (H.-N.G.); (Y.-C.T.); (H.-L.W.); (J.Z.); (Z.A.); (T.-T.Y.); (M.-Y.L.); (P.-Y.C.); (Z.-C.H.); (Q.C.); (M.A.); (J.-Y.W.)
| | - Meng-Yao Liu
- Laboratory of Feed Biotechnology, State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China; (H.-N.G.); (Y.-C.T.); (H.-L.W.); (J.Z.); (Z.A.); (T.-T.Y.); (M.-Y.L.); (P.-Y.C.); (Z.-C.H.); (Q.C.); (M.A.); (J.-Y.W.)
| | - Pei-Yao Chen
- Laboratory of Feed Biotechnology, State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China; (H.-N.G.); (Y.-C.T.); (H.-L.W.); (J.Z.); (Z.A.); (T.-T.Y.); (M.-Y.L.); (P.-Y.C.); (Z.-C.H.); (Q.C.); (M.A.); (J.-Y.W.)
| | - Zheng-Chang Hua
- Laboratory of Feed Biotechnology, State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China; (H.-N.G.); (Y.-C.T.); (H.-L.W.); (J.Z.); (Z.A.); (T.-T.Y.); (M.-Y.L.); (P.-Y.C.); (Z.-C.H.); (Q.C.); (M.A.); (J.-Y.W.)
| | - Xiao-Na Yan
- College of Animal Science and Technology, Hebei Normal University of Science & Technology, Qinhuangdao 066004, China;
| | - Qiang Cheng
- Laboratory of Feed Biotechnology, State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China; (H.-N.G.); (Y.-C.T.); (H.-L.W.); (J.Z.); (Z.A.); (T.-T.Y.); (M.-Y.L.); (P.-Y.C.); (Z.-C.H.); (Q.C.); (M.A.); (J.-Y.W.)
| | - Marhaba Ahmat
- Laboratory of Feed Biotechnology, State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China; (H.-N.G.); (Y.-C.T.); (H.-L.W.); (J.Z.); (Z.A.); (T.-T.Y.); (M.-Y.L.); (P.-Y.C.); (Z.-C.H.); (Q.C.); (M.A.); (J.-Y.W.)
| | - Jun-Yong Wang
- Laboratory of Feed Biotechnology, State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China; (H.-N.G.); (Y.-C.T.); (H.-L.W.); (J.Z.); (Z.A.); (T.-T.Y.); (M.-Y.L.); (P.-Y.C.); (Z.-C.H.); (Q.C.); (M.A.); (J.-Y.W.)
| | - Lu-Lu Zhang
- School of Pharmaceutical Sciences, Tsinghua University, Beijing 100084, China; (L.-L.Z.); (X.-B.W.)
- Tsinghua-Peking Center for Life Sciences, Tsinghua University, Beijing 100084, China
| | - Xu-Biao Wei
- School of Pharmaceutical Sciences, Tsinghua University, Beijing 100084, China; (L.-L.Z.); (X.-B.W.)
- Tsinghua-Peking Center for Life Sciences, Tsinghua University, Beijing 100084, China
| | - Xiu-Dong Liao
- Mineral Nutrition Research Division, State Key Laboratory of Animal Nutrition, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing 100193, China;
| | - Ri-Jun Zhang
- Laboratory of Feed Biotechnology, State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China; (H.-N.G.); (Y.-C.T.); (H.-L.W.); (J.Z.); (Z.A.); (T.-T.Y.); (M.-Y.L.); (P.-Y.C.); (Z.-C.H.); (Q.C.); (M.A.); (J.-Y.W.)
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Chen EHL, Weng CW, Li YM, Wu MC, Yang CC, Lee KT, Chen RPY, Cheng CP. De Novo Design of Antimicrobial Peptides With a Special Charge Pattern and Their Application in Combating Plant Pathogens. FRONTIERS IN PLANT SCIENCE 2021; 12:753217. [PMID: 34659322 PMCID: PMC8514817 DOI: 10.3389/fpls.2021.753217] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/04/2021] [Accepted: 09/06/2021] [Indexed: 06/13/2023]
Abstract
Plant diseases are important issues in agriculture, and the development of effective and environment-friendly means of disease control is crucial and highly desired. Antimicrobial peptides (AMPs) are known as potential alternatives to chemical pesticides because of their potent broad-spectrum antimicrobial activity and because they have no risk, or have only a low risk, of developing chemical-resistant pathogens. In this study, we designed a series of amphipathic helical peptides with different spatial distributions of positive charges and found that the peptides that had a special sequence pattern "BBHBBHHBBH" ("B" for basic residue and "H" for hydrophobic residue) displayed excellent bactericidal and fungicidal activities in a wide range of economically important plant pathogens. The peptides with higher helical propensity had lower antimicrobial activity. When we modified the peptides with a long acyl chain at their N-terminus, their plant protection effect improved. Our application of the fatty acyl-modified peptides on the leaves of tomato and Arabidopsis plants lessened the infection caused by Pectobacterium carotovorum subsp. carotovorum and Botrytis cinerea. Our study provides important insights on the development of more potent novel AMPs for plant protection.
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Affiliation(s)
- Eric H. -L. Chen
- Institute of Biological Chemistry, Academia Sinica, Taipei, Taiwan
| | - Cheng-Wei Weng
- Institute of Plant Biology, National Taiwan University, Taipei, Taiwan
| | - Yi-Min Li
- Institute of Plant Biology, National Taiwan University, Taipei, Taiwan
| | - Ming-Chin Wu
- Institute of Biological Chemistry, Academia Sinica, Taipei, Taiwan
| | - Chien-Chih Yang
- Department of Biochemical Science and Technology, National Taiwan University, Taipei, Taiwan
| | - Kung-Ta Lee
- Department of Biochemical Science and Technology, National Taiwan University, Taipei, Taiwan
| | - Rita P. -Y. Chen
- Institute of Biological Chemistry, Academia Sinica, Taipei, Taiwan
- Institute of Biochemical Sciences, National Taiwan University, Taipei, Taiwan
| | - Chiu-Ping Cheng
- Institute of Plant Biology, National Taiwan University, Taipei, Taiwan
- Department of Life Science, National Taiwan University, Taipei, Taiwan
- Global Agriculture Technology and Genomic Science Master Program, National Taiwan University, Taipei, Taiwan
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McMillan KAM, Coombs MRP. Investigating Potential Applications of the Fish Anti-Microbial Peptide Pleurocidin: A Systematic Review. Pharmaceuticals (Basel) 2021; 14:ph14070687. [PMID: 34358113 PMCID: PMC8308923 DOI: 10.3390/ph14070687] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2021] [Revised: 07/09/2021] [Accepted: 07/10/2021] [Indexed: 12/05/2022] Open
Abstract
The anti-microbial peptide (AMP) pleurocidin is found in winter flounder (Pseudopleuronectes americanus), an Atlantic flounder species. There is promising evidence for clinical, aquaculture, and veterinary applications of pleurocidin. This review provides an overview of the current literature available on pleurocidin to guide future research directions. By fully elucidating pleurocidin’s mechanism of action and developing novel treatments against pathogenic microbes, populations of flatfish and humans can be protected. This review consulted publications from PubMed and Environment Complete with search terms such as “pleurocidin”, “winter flounder”, and “antimicrobial”. The fish immune system includes AMPs as a component of the innate immune system. Pleurocidin, one of these AMPs, has been found to be effective against various Gram-positive and Gram-negative bacteria. More investigations are required to determine pleurocidin’s suitability as a treatment against antibiotic-resistant pathogens. There is promising evidence for pleurocidin as a novel anti-cancer therapy. The peptide has been found to display potent anti-cancer effects against human cancer cells. Research efforts focused on pleurocidin may result in novel treatment strategies against antibiotic-resistant bacteria and cancer. More research is required to determine if the peptide is a suitable candidate to be developed into a novel anti-microbial treatment. Some of the microbes susceptible to the peptide are also pathogens of fish, suggesting its suitability as a therapeutic treatment for fish species.
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Affiliation(s)
| | - Melanie R. Power Coombs
- Biology Department, Acadia University, Wolfville, NS B4P 2R6, Canada;
- Department of Pathology, Dalhousie University, Halifax, NS B3H 4H7, Canada
- Correspondence:
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25
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Wu KC, Hua KF, Yu YH, Cheng YH, Cheng TT, Huang YK, Chang HW, Chen WJ. Antibacterial and Antibiofilm Activities of Novel Antimicrobial Peptides against Multidrug-Resistant Enterotoxigenic Escherichia Coli. Int J Mol Sci 2021; 22:ijms22083926. [PMID: 33920239 PMCID: PMC8070514 DOI: 10.3390/ijms22083926] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2021] [Revised: 04/06/2021] [Accepted: 04/08/2021] [Indexed: 11/24/2022] Open
Abstract
Post-weaning diarrhea due to enterotoxigenic Escherichia coli (ETEC) is a common disease of piglets and causes great economic loss for the swine industry. Over the past few decades, decreasing effectiveness of conventional antibiotics has caused serious problems because of the growing emergence of multidrug-resistant (MDR) pathogens. Various studies have indicated that antimicrobial peptides (AMPs) have potential to serve as an alternative to antibiotics owing to rapid killing action and highly selective toxicity. Our previous studies have shown that AMP GW-Q4 and its derivatives possess effective antibacterial activities against the Gram-negative bacteria. Hence, in the current study, we evaluated the antibacterial efficacy of GW-Q4 and its derivatives against MDR ETEC and their minimal inhibition concentration (MIC) values were determined to be around 2~32 μg/mL. Among them, AMP Q4-15a-1 with the second lowest MIC (4 μg/mL) and the highest minimal hemolysis concentration (MHC, 256 μg/mL), thus showing the greatest selectivity (MHC/MIC = 64) was selected for further investigations. Moreover, Q4-15a-1 showed dose-dependent bactericidal activity against MDR ETEC in time–kill curve assays. According to the cellular localization and membrane integrity analyses using confocal microscopy, Q4-15a-1 can rapidly interact with the bacterial surface, disrupt the membrane and enter cytosol in less than 30 min. Minimum biofilm eradication concentration (MBEC) of Q4-15a-1 is 4× MIC (16 μg/mL), indicating that Q4-15a-1 is effective against MDR ETEC biofilm. Besides, we established an MDR ETEC infection model with intestinal porcine epithelial cell-1 (IPEC-1). In this infection model, 32 μg/mL Q4-15a-1 can completely inhibit ETEC adhesion onto IPEC-1. Overall, these results suggested that Q4-15a-1 may be a promising antibacterial candidate for treatment of weaned piglets infected by MDR ETEC.
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Affiliation(s)
- Kang-Chi Wu
- Department of Biotechnology and Animal Science, National Ilan University, Yilan 26047, Taiwan; (K.-C.W.); (K.-F.H.); (Y.-H.Y.); (Y.-H.C.); (T.-T.C.); (Y.-K.H.)
| | - Kuo-Feng Hua
- Department of Biotechnology and Animal Science, National Ilan University, Yilan 26047, Taiwan; (K.-C.W.); (K.-F.H.); (Y.-H.Y.); (Y.-H.C.); (T.-T.C.); (Y.-K.H.)
| | - Yu-Hsiang Yu
- Department of Biotechnology and Animal Science, National Ilan University, Yilan 26047, Taiwan; (K.-C.W.); (K.-F.H.); (Y.-H.Y.); (Y.-H.C.); (T.-T.C.); (Y.-K.H.)
| | - Yeong-Hsiang Cheng
- Department of Biotechnology and Animal Science, National Ilan University, Yilan 26047, Taiwan; (K.-C.W.); (K.-F.H.); (Y.-H.Y.); (Y.-H.C.); (T.-T.C.); (Y.-K.H.)
| | - Ting-Ting Cheng
- Department of Biotechnology and Animal Science, National Ilan University, Yilan 26047, Taiwan; (K.-C.W.); (K.-F.H.); (Y.-H.Y.); (Y.-H.C.); (T.-T.C.); (Y.-K.H.)
| | - Yao-Kuan Huang
- Department of Biotechnology and Animal Science, National Ilan University, Yilan 26047, Taiwan; (K.-C.W.); (K.-F.H.); (Y.-H.Y.); (Y.-H.C.); (T.-T.C.); (Y.-K.H.)
- Institute of Cellular and Organismic Biology, Academia Sinica, Taipei 11529, Taiwan
| | - Hui-Wen Chang
- Department of Veterinary Medicine, School of Veterinary Medicine, National Taiwan University, Taipei 10617, Taiwan;
- Graduate Institute of Molecular and Comparative Pathobiology, School of Veterinary Medicine, National Taiwan University, Taipei 10617, Taiwan
| | - Wei-Jung Chen
- Department of Biotechnology and Animal Science, National Ilan University, Yilan 26047, Taiwan; (K.-C.W.); (K.-F.H.); (Y.-H.Y.); (Y.-H.C.); (T.-T.C.); (Y.-K.H.)
- Correspondence:
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26
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Identification of potential therapeutic antimicrobial peptides against Acinetobacter baumannii in a mouse model of pneumonia. Sci Rep 2021; 11:7318. [PMID: 33795739 PMCID: PMC8016998 DOI: 10.1038/s41598-021-86844-5] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2020] [Accepted: 03/18/2021] [Indexed: 12/25/2022] Open
Abstract
Acinetobacter baumannii-induced nosocomial pneumonia has become a serious clinical problem because of high antibiotic resistance rates. Antimicrobial peptides (AMP) are an ideal alternative strategy due to their broad-spectrum of antimicrobial activity and low incidence of bacterial resistance. However, their application is limited by toxicity and stability in vivo. The present study used a mouse model to directly identify potential AMPs effective for treatment of A. baumannii-induced pneumonia. Fifty-eight AMPs were screened and two identified (SMAP-29 and TP4) to have prophylactic effects which prevented the death of mice with pneumonia. Furthermore, two TP4 derivatives (dN4 and dC4) were found to have therapeutic activity in pneumonia mouse models by peritoneal or intravenous administration. Both dN4 and dC4 also inhibited and/or eliminated A. baumannii biofilms at higher doses. Taken together, these data suggest the AMP derivatives dN4 and dC4 represent a potential treatment strategy for A. baumannii-induced pneumonia.
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Selecting Subpopulations of High-Quality Protein Conformers among Conformational Mixtures of Recombinant Bovine MMP-9 Solubilized from Inclusion Bodies. Int J Mol Sci 2021; 22:ijms22063020. [PMID: 33809594 PMCID: PMC8001920 DOI: 10.3390/ijms22063020] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2021] [Revised: 03/03/2021] [Accepted: 03/12/2021] [Indexed: 12/30/2022] Open
Abstract
A detailed workflow to analyze the physicochemical characteristics of mammalian matrix metalloproteinase (MMP-9) protein species obtained from protein aggregates (inclusion bodies-IBs) was followed. MMP-9 was recombinantly produced in the prokaryotic microbial cell factories Clearcoli (an engineered form of Escherichia coli) and Lactococcus lactis, mainly forming part of IBs and partially recovered under non-denaturing conditions. After the purification by affinity chromatography of solubilized MMP-9, four protein peaks were obtained. However, so far, the different conformational protein species forming part of IBs have not been isolated and characterized. Therefore, with the aim to link the physicochemical characteristics of the isolated peaks with their biological activity, we set up a methodological approach that included dynamic light scattering (DLS), circular dichroism (CD), and spectrofluorometric analysis confirming the separation of subpopulations of conformers with specific characteristics. In protein purification procedures, the detailed analysis of the individual physicochemical properties and the biological activity of protein peaks separated by chromatographic techniques is a reliable source of information to select the best-fitted protein populations.
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Carratalá JV, Cisneros A, Hellman E, Villaverde A, Ferrer-Miralles N. Title: insoluble proteins catch heterologous soluble proteins into inclusion bodies by intermolecular interaction of aggregating peptides. Microb Cell Fact 2021; 20:30. [PMID: 33531005 PMCID: PMC7852131 DOI: 10.1186/s12934-021-01524-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2020] [Accepted: 01/21/2021] [Indexed: 02/06/2023] Open
Abstract
Background Protein aggregation is a biological event observed in expression systems in which the recombinant protein is produced under stressful conditions surpassing the homeostasis of the protein quality control system. In addition, protein aggregation is also related to conformational diseases in animals as transmissible prion diseases or non-transmissible neurodegenerative diseases including Alzheimer, Parkinson’s disease, amyloidosis and multiple system atrophy among others. At the molecular level, the presence of aggregation-prone domains in protein molecules act as seeding igniters to induce the accumulation of protein molecules in protease-resistant clusters by intermolecular interactions. Results
In this work we have studied the aggregating-prone performance of a small peptide (L6K2) with additional antimicrobial activity and we have elucidated the relevance of the accompanying scaffold protein to enhance the aggregating profile of the fusion protein. Furthermore, we demonstrated that the fusion of L6K2 to highly soluble recombinant proteins directs the protein to inclusion bodies (IBs) in E. coli through stereospecific interactions in the presence of an insoluble protein displaying the same aggregating-prone peptide (APP). Conclusions These data suggest that the molecular bases of protein aggregation are related to the net balance of protein aggregation potential and not only to the presence of APPs. This is then presented as a generic platform to generate hybrid protein aggregates in microbial cell factories for biopharmaceutical and biotechnological applications.
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Affiliation(s)
- Jose Vicente Carratalá
- Institute for Biotechnology and Biomedicine, Autonomous University of Barcelona, 08193, Bellaterra, Barcelona, Spain.,Department of Genetics and Microbiology, Autonomous University of Barcelona, 08193, Bellaterra, Barcelona, Spain.,Bioengineering, Biomaterials and Nanomedicine Networking Biomedical Research Centre (CIBER-BBN), 08193, Bellaterra, Barcelona, Spain
| | - Andrés Cisneros
- Institute for Biotechnology and Biomedicine, Autonomous University of Barcelona, 08193, Bellaterra, Barcelona, Spain.,Department of Genetics and Microbiology, Autonomous University of Barcelona, 08193, Bellaterra, Barcelona, Spain
| | - Elijah Hellman
- Institute for Biotechnology and Biomedicine, Autonomous University of Barcelona, 08193, Bellaterra, Barcelona, Spain.,Department of Genetics and Microbiology, Autonomous University of Barcelona, 08193, Bellaterra, Barcelona, Spain
| | - Antonio Villaverde
- Institute for Biotechnology and Biomedicine, Autonomous University of Barcelona, 08193, Bellaterra, Barcelona, Spain.,Department of Genetics and Microbiology, Autonomous University of Barcelona, 08193, Bellaterra, Barcelona, Spain.,Bioengineering, Biomaterials and Nanomedicine Networking Biomedical Research Centre (CIBER-BBN), 08193, Bellaterra, Barcelona, Spain
| | - Neus Ferrer-Miralles
- Institute for Biotechnology and Biomedicine, Autonomous University of Barcelona, 08193, Bellaterra, Barcelona, Spain. .,Department of Genetics and Microbiology, Autonomous University of Barcelona, 08193, Bellaterra, Barcelona, Spain. .,Bioengineering, Biomaterials and Nanomedicine Networking Biomedical Research Centre (CIBER-BBN), 08193, Bellaterra, Barcelona, Spain.
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29
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Serna N, Carratalá JV, Parladé E, Sánchez-Chardi A, Aviñó A, Unzueta U, Mangues R, Eritja R, Ferrer-Miralles N, Vazquez E, Villaverde A. Developing Protein-Antitumoral Drug Nanoconjugates as Bifunctional Antimicrobial Agents. ACS APPLIED MATERIALS & INTERFACES 2020; 12:57746-57756. [PMID: 33325705 DOI: 10.1021/acsami.0c18317] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
A novel concept about bifunctional antimicrobial drugs, based on self-assembling protein nanoparticles, has been evaluated here over two biofilm-forming pathogens, namely Pseudomonas aeruginosa and Staphylococcus aureus. Two structurally different antimicrobial peptides (GWH1 and PaDBS1R1) were engineered to form regular nanoparticles of around 35 nm, to which the small molecular weight drug Floxuridine was covalently conjugated. Both the assembled peptides and the chemical, a conventional cytotoxic drug used in oncotherapy, showed potent antimicrobial activities that were enhanced by the combination of both molecules in single pharmacological entities. Therefore, the resulting prototypes show promises as innovative nanomedicines, being potential alternatives to conventional antibiotics. The biological performance and easy fabrication of these materials fully support the design of protein-based hybrid constructs for combined molecular therapies, expected to have broad applicability beyond antimicrobial medicines. In addition, the approach taken here validates the functional exploration and repurposing of antitumoral drugs, which at low concentrations perform well as unexpected biofilm-inhibiting agents.
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Affiliation(s)
- Naroa Serna
- Institut de Biotecnologia i de Biomedicina, Universitat Autònoma de Barcelona, Bellaterra, 08193 Barcelona, Spain
- Departament de Genètica i de Microbiologia, Universitat Autònoma de Barcelona, Bellaterra, 08193 Barcelona, Spain
- CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), C/Monforte de Lemos 3-5, 28029 Madrid, Spain
| | - Jose Vicente Carratalá
- Institut de Biotecnologia i de Biomedicina, Universitat Autònoma de Barcelona, Bellaterra, 08193 Barcelona, Spain
- Departament de Genètica i de Microbiologia, Universitat Autònoma de Barcelona, Bellaterra, 08193 Barcelona, Spain
- CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), C/Monforte de Lemos 3-5, 28029 Madrid, Spain
| | - Eloi Parladé
- Institut de Biotecnologia i de Biomedicina, Universitat Autònoma de Barcelona, Bellaterra, 08193 Barcelona, Spain
- CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), C/Monforte de Lemos 3-5, 28029 Madrid, Spain
| | - Alejandro Sánchez-Chardi
- Servei de Microscòpia, Universitat Autònoma de Barcelona, Bellaterra, 08193 Barcelona, Spain
- Departament de Biologia Evolutiva, Ecologia i Ciències Ambientals, Facultat de Biologia, Universitat de Barcelona, Av. Diagonal 643, 08028 Barcelona, Spain
| | - Anna Aviñó
- CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), C/Monforte de Lemos 3-5, 28029 Madrid, Spain
- Institute for Advanced Chemistry of Catalonia (IQAC), CSIC, 08034 Barcelona, Spain
| | - Ugutz Unzueta
- Departament de Genètica i de Microbiologia, Universitat Autònoma de Barcelona, Bellaterra, 08193 Barcelona, Spain
- CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), C/Monforte de Lemos 3-5, 28029 Madrid, Spain
- Biomedical Research Institute Sant Pau (IIB Sant Pau), Sant Antoni Maria Claret 167, 08025 Barcelona, Spain
| | - Ramón Mangues
- CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), C/Monforte de Lemos 3-5, 28029 Madrid, Spain
- Biomedical Research Institute Sant Pau (IIB Sant Pau), Sant Antoni Maria Claret 167, 08025 Barcelona, Spain
| | - Ramón Eritja
- CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), C/Monforte de Lemos 3-5, 28029 Madrid, Spain
- Institute for Advanced Chemistry of Catalonia (IQAC), CSIC, 08034 Barcelona, Spain
| | - Neus Ferrer-Miralles
- Institut de Biotecnologia i de Biomedicina, Universitat Autònoma de Barcelona, Bellaterra, 08193 Barcelona, Spain
- Departament de Genètica i de Microbiologia, Universitat Autònoma de Barcelona, Bellaterra, 08193 Barcelona, Spain
- CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), C/Monforte de Lemos 3-5, 28029 Madrid, Spain
| | - Esther Vazquez
- Institut de Biotecnologia i de Biomedicina, Universitat Autònoma de Barcelona, Bellaterra, 08193 Barcelona, Spain
- Departament de Genètica i de Microbiologia, Universitat Autònoma de Barcelona, Bellaterra, 08193 Barcelona, Spain
- CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), C/Monforte de Lemos 3-5, 28029 Madrid, Spain
| | - Antonio Villaverde
- Institut de Biotecnologia i de Biomedicina, Universitat Autònoma de Barcelona, Bellaterra, 08193 Barcelona, Spain
- Departament de Genètica i de Microbiologia, Universitat Autònoma de Barcelona, Bellaterra, 08193 Barcelona, Spain
- CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), C/Monforte de Lemos 3-5, 28029 Madrid, Spain
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30
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Carratalá JV, Brouillette E, Serna N, Sánchez-Chardi A, Sánchez JM, Villaverde A, Arís A, Garcia-Fruitós E, Ferrer-Miralles N, Malouin F. In Vivo Bactericidal Efficacy of GWH1 Antimicrobial Peptide Displayed on Protein Nanoparticles, a Potential Alternative to Antibiotics. Pharmaceutics 2020; 12:pharmaceutics12121217. [PMID: 33348529 PMCID: PMC7766456 DOI: 10.3390/pharmaceutics12121217] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2020] [Revised: 12/11/2020] [Accepted: 12/14/2020] [Indexed: 12/16/2022] Open
Abstract
Oligomerization of antimicrobial peptides into nanosized supramolecular complexes produced in biological systems (inclusion bodies and self-assembling nanoparticles) seems an appealing alternative to conventional antibiotics. In this work, the antimicrobial peptide, GWH1, was N-terminally fused to two different scaffold proteins, namely, GFP and IFN-γ for its bacterial production in the form of such recombinant protein complexes. Protein self-assembling as regular soluble protein nanoparticles was achieved in the case of GWH1-GFP, while oligomerization into bacterial inclusion bodies was reached in both constructions. Among all these types of therapeutic proteins, protein nanoparticles of GWH1-GFP showed the highest bactericidal effect in an in vitro assay against Escherichia coli, whereas non-oligomerized GWH1-GFP and GWH1-IFN-γ only displayed a moderate bactericidal activity. These results indicate that the biological activity of GWH1 is specifically enhanced in the form of regular multi-display configurations. Those in vitro observations were fully validated against a bacterial infection using a mouse mastitis model, in which the GWH1-GFP soluble nanoparticles were able to effectively reduce bacterial loads.
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Affiliation(s)
- Jose V. Carratalá
- Institute for Biotechnology and Biomedicine, Autonomous University of Barcelona, Bellaterra, 08193 Barcelona, Spain; (J.V.C.); (N.S.); (J.M.S.); (A.V.)
- Department of Genetics and Microbiology, Autonomous University of Barcelona, Bellaterra, 08193 Barcelona, Spain
- Bioengineering, Biomaterials and Nanomedicine Networking Biomedical Research Centre (CIBER-BBN), C/Monforte de Lemos 3-5, 28029 Madrid, Spain
| | - Eric Brouillette
- Centre d’Étude et de Valorisation de la Diversité Microbienne (CEVDM), Département de Biologie, Université de Sherbrooke, 2500 Boul. Université, Sherbrooke, QC J1K 2R1, Canada;
- Mastitis Network and Regroupement de Recherche Pour un Lait de Qualité Optimale (Op+Lait), Université de Montréal, 2900 Edouard Montpetit Blvd, Montréal, QC H3T 1J4, Canada
| | - Naroa Serna
- Institute for Biotechnology and Biomedicine, Autonomous University of Barcelona, Bellaterra, 08193 Barcelona, Spain; (J.V.C.); (N.S.); (J.M.S.); (A.V.)
- Department of Genetics and Microbiology, Autonomous University of Barcelona, Bellaterra, 08193 Barcelona, Spain
- Bioengineering, Biomaterials and Nanomedicine Networking Biomedical Research Centre (CIBER-BBN), C/Monforte de Lemos 3-5, 28029 Madrid, Spain
| | - Alejandro Sánchez-Chardi
- Microscopy Service, Autonomous University of Barcelona, Bellaterra, 08193 Barcelona, Spain;
- Departament of Evolutionary Biology, Ecology and Environmental Sciences, University of Barcelona, Avda Diagonal 643, 08028 Barcelona, Spain
| | - Julieta M. Sánchez
- Institute for Biotechnology and Biomedicine, Autonomous University of Barcelona, Bellaterra, 08193 Barcelona, Spain; (J.V.C.); (N.S.); (J.M.S.); (A.V.)
- Department of Genetics and Microbiology, Autonomous University of Barcelona, Bellaterra, 08193 Barcelona, Spain
| | - Antonio Villaverde
- Institute for Biotechnology and Biomedicine, Autonomous University of Barcelona, Bellaterra, 08193 Barcelona, Spain; (J.V.C.); (N.S.); (J.M.S.); (A.V.)
- Department of Genetics and Microbiology, Autonomous University of Barcelona, Bellaterra, 08193 Barcelona, Spain
- Bioengineering, Biomaterials and Nanomedicine Networking Biomedical Research Centre (CIBER-BBN), C/Monforte de Lemos 3-5, 28029 Madrid, Spain
| | - Anna Arís
- Department of Ruminant Production, Institute of Agriculture and Agrifood Research and Technology (IRTA), Caldes de Montbui, 08140 Barcelona, Spain; (A.A.); (E.G.-F.)
| | - Elena Garcia-Fruitós
- Department of Ruminant Production, Institute of Agriculture and Agrifood Research and Technology (IRTA), Caldes de Montbui, 08140 Barcelona, Spain; (A.A.); (E.G.-F.)
| | - Neus Ferrer-Miralles
- Institute for Biotechnology and Biomedicine, Autonomous University of Barcelona, Bellaterra, 08193 Barcelona, Spain; (J.V.C.); (N.S.); (J.M.S.); (A.V.)
- Department of Genetics and Microbiology, Autonomous University of Barcelona, Bellaterra, 08193 Barcelona, Spain
- Bioengineering, Biomaterials and Nanomedicine Networking Biomedical Research Centre (CIBER-BBN), C/Monforte de Lemos 3-5, 28029 Madrid, Spain
- Correspondence: (N.F.-M.); (F.M.)
| | - François Malouin
- Centre d’Étude et de Valorisation de la Diversité Microbienne (CEVDM), Département de Biologie, Université de Sherbrooke, 2500 Boul. Université, Sherbrooke, QC J1K 2R1, Canada;
- Mastitis Network and Regroupement de Recherche Pour un Lait de Qualité Optimale (Op+Lait), Université de Montréal, 2900 Edouard Montpetit Blvd, Montréal, QC H3T 1J4, Canada
- Correspondence: (N.F.-M.); (F.M.)
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The introduction of L-phenylalanine into antimicrobial peptide protonectin enhances the selective antibacterial activity of its derivative phe-Prt against Gram-positive bacteria. Amino Acids 2020; 53:23-32. [PMID: 33236256 DOI: 10.1007/s00726-020-02919-z] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2020] [Accepted: 11/13/2020] [Indexed: 01/23/2023]
Abstract
Protonectin was a typical amphiphilic antimicrobial peptide with potent antimicrobial activity against Gram-positive and Gram-negative bacteria. In the present study, when its eleventh amino acid in the sequence was substituted by phenylalanine, the analog named phe-Prt showed potent antimicrobial activity against Gram-positive bacteria, but no antimicrobial activity against Gram-negative bacteria, indicating a significant selectivity between Gram-positive bacteria and Gram-negative bacteria. However, when Gram-negative bacteria were incubated with EDTA, the bacteria were susceptible to phe-Prt. Next, the binding effect of phe-Prt with LPS was determined. Our result showed that LPS could hamper the bactericidal activity of phe-Prt against Gram-positive bacteria. The result of zeta potential assay further confirmed the binding effect of phe-Prt with LPS for it could neutralize the surface charge of E. coli and LPS. Then, the effect of phe-Prt on the integrity of outer membrane of Gram-negative bacteria was determined. Our results showed that phe-Prt had a much weaker disturbance to the outer membrane of Gram-negative bacteria than the parent peptide protonectin. In summary, the introduction of L-phenylalanine into the sequence of antimicrobial peptide protonectin made phe-Prt show significant selectivity against Gram-positive bacteria, which could partly be attributed to the delay effect of LPS for phe-Prt to access to cell membrane. Although further study is still needed to clarify the exact mechanism of selectivity, the present study provided a strategy to develop antimicrobial peptides with selectivity toward Gram-positive and Gram-negative bacteria.
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Kong X, Song W, Hua Y, Li X, Chen Y, Zhang C, Chen Y. Insights into the antibacterial activity of cottonseed protein-derived peptide against Escherichia coli. Food Funct 2020; 11:10047-10057. [PMID: 33135695 DOI: 10.1039/d0fo01279c] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
In the study, antibacterial peptides were separated and identified from cottonseed protein hydrolysates and the interactions between antibacterial peptides and Escherichia coli were further investigated. Firstly, by using a combined strategy of Amberlite CG-50 ion exchange chromatography and reversed-phase high-performance liquid chromatography, three peptides with antibacterial activity were purified and identified, including HHRRFSLY, KFMPT, and RRLFSDY. Interestingly, HHRRFSLY and RRLFSDY exhibited higher inhibition activity with the IC50 value of 0.26 mg mL-1 and 0.58 mg mL-1 (p < 0.05), respectively. Flow cytometry results showed that the incubation of antibacterial peptides with E. coli could cause damage to the integrity of the E. coli cell membrane. Transmission electron microscopy and scanning electron microscopy results revealed the damage caused to the bacterial cell surface and the leakage of cytoplasmic content by the antibacterial peptides. Molecular docking studies indicated that HHRRFSLY, KFMPT, and RRLFSDY have a good binding affinity to the active sites of the surface protein (OmpF) mainly through a hydrogen bond and salt bridge. The results here showed that the antibacterial peptides derived from cottonseed protein could be used as a good choice for functional foods or related drugs, and also shed light on further studies of antibacterial mechanism.
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Affiliation(s)
- Xiangzhen Kong
- State Key Laboratory of Food Science and Technology, Jiangnan University, China.
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Functional Characterization of Temporin-SHe, a New Broad-Spectrum Antibacterial and Leishmanicidal Temporin-SH Paralog from the Sahara Frog ( Pelophylax saharicus). Int J Mol Sci 2020; 21:ijms21186713. [PMID: 32933215 PMCID: PMC7555312 DOI: 10.3390/ijms21186713] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2020] [Revised: 09/08/2020] [Accepted: 09/10/2020] [Indexed: 02/06/2023] Open
Abstract
Amphibian skin is a promising natural resource for antimicrobial peptides (AMPs), key effectors of innate immunity with attractive therapeutic potential to fight antibiotic-resistant pathogens. Our previous studies showed that the skin of the Sahara Frog (Pelophylax saharicus) contains broad-spectrum AMPs of the temporin family, named temporins-SH. Here, we focused our study on temporin-SHe, a temporin-SHd paralog that we have previously identified in this frog but was never structurally and functionally characterized. We synthesized and determined the structure of temporin-SHe. This non-amphipathic α-helical peptide was demonstrated to strongly destabilize the lipid chain packing of anionic multilamellar vesicles mimicking bacterial membranes. Investigation of the antimicrobial activity revealed that temporin-SHe targets Gram-negative and Gram-positive bacteria, including clinical isolates of multi-resistant Staphylococcus aureus strains. Temporin-SHe exhibited also antiparasitic activity toward different Leishmania species responsible for visceral leishmaniasis, as well as cutaneous and mucocutaneous forms. Functional assays revealed that temporin-SHe exerts bactericidal effects with membrane depolarization and permeabilization, via a membranolytic mechanism observed by scanning electron microscopy. Temporin-SHe represents a new member of the very limited group of antiparasitic temporins/AMPs. Despite its cytotoxicity, it is nevertheless an interesting tool to study the AMP antiparasitic mechanism and design new antibacterial/antiparasitic agents.
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Khan SA, Lee CS. Recent progress and strategies to develop antimicrobial contact lenses and lens cases for different types of microbial keratitis. Acta Biomater 2020; 113:101-118. [PMID: 32622052 DOI: 10.1016/j.actbio.2020.06.039] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2020] [Revised: 06/24/2020] [Accepted: 06/25/2020] [Indexed: 12/16/2022]
Abstract
Although contact lenses are widely used for vision correction, they are also the primary cause of a number of ocular diseases such as microbial keratitis (MK), etc. and inflammatory events such as infiltrative keratitis (IK), contact lens acute red eye (CLARE), contact lens-induced peripheral ulcer (CLPU), etc. These diseases and infiltrative events often result from microbial contamination of lens care solutions and lens cases that can be exacerbated by unsanitary lens care and extended lens wear. The treatment of microbial biofilms (MBs) on lens cases and contact lenses are complicated and challenging due to their resistance to conventional antimicrobial lens care solutions. More importantly, MK caused by MBs can lead to acute visual damage or even vision impairment. Therefore, the development of lens cases, lens care solutions, and contact lenses with effective antimicrobial performance against MK will contribute to the safe use of contact lenses. This review article summarizes and discusses different chemical approaches for the development of antimicrobial contact lenses and lens cases employing passive surface modifications, antimicrobial peptides, free-radical fabricating agents, quorum sensing quenchers, antibiotics, antifungal drugs and various metals and coatings with antimicrobial nanomaterials. The benefits and shortcomings of these approaches are assessed, and alternative solutions for future developments are discussed.
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Affiliation(s)
- Shakeel Ahmad Khan
- Center of Super-Diamond and Advanced Films (COSDAF), Department of Chemistry, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong
| | - Chun-Sing Lee
- Center of Super-Diamond and Advanced Films (COSDAF), Department of Chemistry, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong.
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Ocampo-Ibáñez ID, Liscano Y, Rivera-Sánchez SP, Oñate-Garzón J, Lugo-Guevara AD, Flórez-Elvira LJ, Lesmes MC. A Novel Cecropin D-Derived Short Cationic Antimicrobial Peptide Exhibits Antibacterial Activity Against Wild-Type and Multidrug-Resistant Strains of Klebsiella pneumoniae and Pseudomonas aeruginosa. Evol Bioinform Online 2020; 16:1176934320936266. [PMID: 32636607 PMCID: PMC7323284 DOI: 10.1177/1176934320936266] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2020] [Accepted: 05/27/2020] [Indexed: 12/20/2022] Open
Abstract
Infections caused by multidrug-resistant (MDR) Pseudomonas aeruginosa and Klebsiella pneumoniae are a serious worldwide public health concern due to the ineffectiveness of empirical antibiotic therapy. Therefore, research and the development of new antibiotic alternatives are urgently needed to control these bacteria. The use of cationic antimicrobial peptides (CAMPs) is a promising candidate alternative therapeutic strategy to antibiotics because they exhibit antibacterial activity against both antibiotic susceptible and MDR strains. In this study, we aimed to investigate the in vitro antibacterial effect of a short synthetic CAMP derived from the ΔM2 analog of Cec D-like (CAMP-CecD) against clinical isolates of K pneumoniae (n = 30) and P aeruginosa (n = 30), as well as its hemolytic activity. Minimal inhibitory concentrations (MICs) and minimal bactericidal concentrations (MBCs) of CAMP-CecD against wild-type and MDR strains were determined by the broth microdilution test. In addition, an in silico molecular dynamic simulation was performed to predict the interaction between CAMP-CecD and membrane models of K pneumoniae and P aeruginosa. The results revealed a bactericidal effect of CAMP-CecD against both wild-type and resistant strains, but MDR P aeruginosa showed higher susceptibility to this peptide with MIC values between 32 and >256 μg/mL. CAMP-CecD showed higher stability in the P aeruginosa membrane model compared with the K pneumoniae model due to the greater number of noncovalent interactions with phospholipid 1-Palmitoyl-2-oleyl-sn-glycero-3-(phospho-rac-(1-glycerol)) (POPG). This may be related to the boosted effectiveness of the peptide against P aeruginosa clinical isolates. Given the antibacterial activity of CAMP-CecD against wild-type and MDR clinical isolates of P aeruginosa and K pneumoniae and its nonhemolytic effects on human erythrocytes, CAMP-CecD may be a promising alternative to conventional antibiotics.
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Affiliation(s)
- Iván Darío Ocampo-Ibáñez
- Research Group of Microbiology, Industry and Environment, Faculty of Basic Sciences, Universidad Santiago de Cali, Cali, Colombia
| | - Yamil Liscano
- Research Group of Genetic, Regeneration and Cancer, Faculty of Exacts and Natural Sciences, Universidad de Antioquia, Medellín, Colombia
| | - Sandra Patricia Rivera-Sánchez
- Research Group of Microbiology, Industry and Environment, Faculty of Basic Sciences, Universidad Santiago de Cali, Cali, Colombia
| | - José Oñate-Garzón
- Research Group of Chemical and Biotechnology, Faculty of Basic Sciences, Universidad Santiago de Cali, Cali, Colombia
| | - Ashley Dayan Lugo-Guevara
- Research Group of Microbiology, Industry and Environment, Faculty of Basic Sciences, Universidad Santiago de Cali, Cali, Colombia
| | | | - Maria Cristina Lesmes
- Valle del Cauca Departmental Secretary of Health, Gobernación del Valle del Cauca, Cali, Colombia
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Bhopale GM. Antimicrobial Peptides: A Promising Avenue for Human Healthcare. Curr Pharm Biotechnol 2020; 21:90-96. [PMID: 31612826 DOI: 10.2174/1389201020666191011121722] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2019] [Revised: 04/30/2019] [Accepted: 09/17/2019] [Indexed: 02/07/2023]
Abstract
Antimicrobial drugs resistant microbes have been observed worldwide and therefore alternative development of antimicrobial peptides has gained interest in human healthcare. Enormous progress has been made in the development of antimicrobial peptide during the last decade due to major advantages of AMPs such as broad-spectrum activity and low levels of induced resistance over the current antimicrobial agents. This review briefly provides various categories of AMP, their physicochemical properties and mechanism of action which governs their penetration into microbial cell. Further, the recent information on current status of antimicrobial peptide development, their applications and perspective in human healthcare are also described.
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Affiliation(s)
- Girish M Bhopale
- Microbial Diversity Research Centre, Dr. D.Y. Patil Biotechnology & Bioinformatics Institute, Dr. D.Y. Patil Vidhyapeeth, Tathawade, Pune, 411033, M.S, India
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Conversion of Broad-Spectrum Antimicrobial Peptides into Species-Specific Antimicrobials Capable of Precisely Targeting Pathogenic Bacteria. Sci Rep 2020; 10:944. [PMID: 31969663 PMCID: PMC6976587 DOI: 10.1038/s41598-020-58014-6] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2019] [Accepted: 01/03/2020] [Indexed: 11/25/2022] Open
Abstract
Currently, the majority of antibiotics in clinical use have broad activity spectra, killing pathogenic and beneficial microorganisms indiscriminately. The disruption of the ecological balance of normal flora often results in secondary infections or other antibiotic-associated complications. Therefore, targeted antimicrobial therapies capable of specifically eliminating pathogenic bacteria while retaining the protective benefits of a normal microflora would be advantageous. In this study, we successfully constructed a series of Enterococcus faecalis-targeted antimicrobial peptides from wide-spectrum antimicrobial peptide precursors. These peptides are designed based on fusion of the species-specific peptide pheromone cCF10 and modification of the active region of the antimicrobial peptide. The results showed that cCF10-C4 possessed specific antimicrobial activity against E. faecalis and was not active against other types of bacteria tested. The specificity of this hybrid peptide was shown by the absence of antimicrobial effects in the pheromone-substituted derivative. Further studies indicated that cCF10-C4 and its parent peptide C4 exert their activities by damaging cytoplasmic membrane integrity. The present study reveals the application potential of these molecules as “probiotic” antimicrobials for the control of specific bacterial infections, and it also helps to elucidate the design and construction of species-specific antimicrobials with precise targeting specificity.
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Song W, Kong X, Hua Y, Li X, Zhang C, Chen Y. Antioxidant and antibacterial activity and in vitro digestion stability of cottonseed protein hydrolysates. Lebensm Wiss Technol 2020. [DOI: 10.1016/j.lwt.2019.108724] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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Wu PS, Lai SJ, Fung KM, Tseng TS. Characterization of the structure–function relationship of a novel salt-resistant antimicrobial peptide, RR12. RSC Adv 2020; 10:23624-23631. [PMID: 35517355 PMCID: PMC9054785 DOI: 10.1039/d0ra04299d] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2020] [Accepted: 06/15/2020] [Indexed: 11/21/2022] Open
Abstract
Antimicrobial peptides (AMPs) are potential candidates in designing new anti-infective agents. However, many AMPs show poor bactericidal activities in physical salt and serum solutions. Here, we disclosed the structure–function relationships of a novel salt-resistant antimicrobial peptide, RR12, which could further explain its mode of action and show its applicability in developing new antibacterial agents. Antimicrobial peptides (AMPs) are potential candidates in designing new anti-infective agents.![]()
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Affiliation(s)
- Ping-Sheng Wu
- Division of Infectious Diseases
- Department of Pediatrics
- Taipei Tzu Chi Hospital
- Buddhist Tzu Chi Medical Foundation
- New Taipei
| | - Shu-Jung Lai
- Institute of Biological Chemistry
- Academia Sinica
- Taipei 115
- Taiwan
- Graduate Institute of Biomedical Sciences
| | - Kit-Man Fung
- Institute of Biological Chemistry
- Academia Sinica
- Taipei 115
- Taiwan
| | - Tien-Sheng Tseng
- Institute of Molecular Biology
- National Chung Hsing University
- Taichung
- Taiwan
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Liscano Y, Salamanca CH, Vargas L, Cantor S, Laverde-Rojas V, Oñate-Garzón J. Increases in Hydrophilicity and Charge on the Polar Face of Alyteserin 1c Helix Change its Selectivity towards Gram-Positive Bacteria. Antibiotics (Basel) 2019; 8:E238. [PMID: 31783657 PMCID: PMC6963856 DOI: 10.3390/antibiotics8040238] [Citation(s) in RCA: 25] [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: 10/30/2019] [Revised: 11/20/2019] [Accepted: 11/25/2019] [Indexed: 11/16/2022] Open
Abstract
Recently, resistance of pathogens towards conventional antibiotics has increased, representing a threat to public health globally. As part of the fight against this, studies on alternative antibiotics such as antimicrobial peptides have been performed, and it has been shown that their sequence and structure are closely related to their antimicrobial activity. Against this background, we here evaluated the antibacterial activity of two peptides developed by solid-phase synthesis, Alyteserin 1c (WT) and its mutant derivative (ΔM), which shows increased net charge and reduced hydrophobicity. These structural characteristics were modified as a result of amino acid substitutions on the polar face of the WT helix. The minimum inhibitory concentration (MIC) of both peptides was obtained in Gram-positive and Gram-negative bacteria. The results showed that the rational substitutions of the amino acids increased the activity in Gram-positive bacteria, especially against Staphylococcus aureus, for which the MIC was one-third of that for the WT analog. In contrast to the case for Gram-positive bacteria, these substitutions decreased activity against Gram-negative bacteria, especially in Escherichia coli, for which the MIC was eight-fold higher than that exhibited by the WT peptide. To understand this, models of the peptide behavior upon interacting with membranes of E. coli and S. aureus created using molecular dynamics were studied and it was determined that the helical stability of the peptide is indispensable for antimicrobial activity. The hydrogen bonds between the His20 of the peptides and the phospholipids of the membranes should modulate the selectivity associated with structural stability at the carboxy-terminal region of the peptides.
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Affiliation(s)
- Yamil Liscano
- Grupo de Génetica, Regeneración y Cáncer, Instituto de Química, Facultad de Ciencias Exactas y Naturales, Universidad de Antioquia, A.A., Medellín 1226, Colombia;
| | - Constain H. Salamanca
- Laboratorio de Diseño y Formulación de Productos Químicos y Derivados, Departamento de Ciencias Farmacéuticas, Facultad de Ciencias Naturales, Universidad Icesi, Cali 760035, Colombia;
| | - Lina Vargas
- Grupo de Investigación en Química y Biotecnología (QUIBIO), Facultad de Ciencias Básicas, Universidad Santiago de Cali, Calle 5 No. 62-00, Cali 760035, Colombia; (L.V.); (S.C.); (V.L.-R.)
| | - Stefania Cantor
- Grupo de Investigación en Química y Biotecnología (QUIBIO), Facultad de Ciencias Básicas, Universidad Santiago de Cali, Calle 5 No. 62-00, Cali 760035, Colombia; (L.V.); (S.C.); (V.L.-R.)
| | - Valentina Laverde-Rojas
- Grupo de Investigación en Química y Biotecnología (QUIBIO), Facultad de Ciencias Básicas, Universidad Santiago de Cali, Calle 5 No. 62-00, Cali 760035, Colombia; (L.V.); (S.C.); (V.L.-R.)
| | - José Oñate-Garzón
- Grupo de Investigación en Química y Biotecnología (QUIBIO), Facultad de Ciencias Básicas, Universidad Santiago de Cali, Calle 5 No. 62-00, Cali 760035, Colombia; (L.V.); (S.C.); (V.L.-R.)
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Mwangi J, Hao X, Lai R, Zhang ZY. Antimicrobial peptides: new hope in the war against multidrug resistance. Zool Res 2019; 40:488-505. [PMID: 31592585 PMCID: PMC6822926 DOI: 10.24272/j.issn.2095-8137.2019.062] [Citation(s) in RCA: 149] [Impact Index Per Article: 29.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2019] [Accepted: 09/26/2019] [Indexed: 12/16/2022] Open
Abstract
The discovery of antibiotics marked a golden age in the revolution of human medicine. However, decades later, bacterial infections remain a global healthcare threat, and a return to the pre-antibiotic era seems inevitable if stringent measures are not adopted to curb the rapid emergence and spread of multidrug resistance and the indiscriminate use of antibiotics. In hospital settings, multidrug resistant (MDR) pathogens, including carbapenem-resistant Pseudomonas aeruginosa, vancomycin-resistant enterococci (VRE), methicillin-resistant Staphylococcus aureus (MRSA), and extended-spectrum β-lactamases (ESBL) bearing Acinetobacter baumannii, Escherichia coli, and Klebsiella pneumoniae are amongst the most problematic due to the paucity of treatment options, increased hospital stay, and exorbitant medical costs. Antimicrobial peptides (AMPs) provide an excellent potential strategy for combating these threats. Compared to empirical antibiotics, they show low tendency to select for resistance, rapid killing action, broad-spectrum activity, and extraordinary clinical efficacy against several MDR strains. Therefore, this review highlights multidrug resistance among nosocomial bacterial pathogens and its implications and reiterates the importance of AMPs as next-generation antibiotics for combating MDR superbugs.
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Affiliation(s)
- James Mwangi
- Key Laboratory of Bioactive Peptides of Yunnan Province/Key Laboratory of Animal Models and Human Disease Mechanisms of Chinese Academy of Sciences and Yunnan Province, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming Yunnan 650223, China
- Kunming College of Life Science, University of Chinese Academy of Sciences, Kunming Yunnan 650204, China
- Sino-African Joint Research Center, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming Yunnan 650223, China
| | - Xue Hao
- Key Laboratory of Bioactive Peptides of Yunnan Province/Key Laboratory of Animal Models and Human Disease Mechanisms of Chinese Academy of Sciences and Yunnan Province, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming Yunnan 650223, China
| | - Ren Lai
- Key Laboratory of Bioactive Peptides of Yunnan Province/Key Laboratory of Animal Models and Human Disease Mechanisms of Chinese Academy of Sciences and Yunnan Province, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming Yunnan 650223, China
- Sino-African Joint Research Center, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming Yunnan 650223, China
- Institutes for Drug Discovery and Development, Chinese Academy of Sciences, Shanghai 201203, China
- KIZ-CUHK Joint Laboratory of Bioresources and Molecular Research in Common Diseases, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming Yunnan 650223, China
- Center for Biosafety Mega-Science, Chinese Academy of Sciences, Wuhan Hubei 430071, China
| | - Zhi-Ye Zhang
- Key Laboratory of Bioactive Peptides of Yunnan Province/Key Laboratory of Animal Models and Human Disease Mechanisms of Chinese Academy of Sciences and Yunnan Province, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming Yunnan 650223, China, E-mail:
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Maraming P, Klaynongsruang S, Boonsiri P, Peng S, Daduang S, Leelayuwat C, Pientong C, Chung J, Daduang J. The cationic cell‐penetrating KT2 peptide promotes cell membrane defects and apoptosis with autophagy inhibition in human HCT 116 colon cancer cells. J Cell Physiol 2019; 234:22116-22129. [DOI: 10.1002/jcp.28774] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2019] [Revised: 04/12/2019] [Accepted: 04/17/2019] [Indexed: 02/06/2023]
Affiliation(s)
- Pornsuda Maraming
- Biomedical Sciences Program, Graduate School Khon Kaen University Khon Kaen Thailand
| | - Sompong Klaynongsruang
- Department of Biochemistry, Protein and Proteomics Research Center for Commercial and Industrial Purposes (ProCCI), Faculty of Science Khon Kaen University Khon Kaen Thailand
| | - Patcharee Boonsiri
- Department of Biochemistry, Faculty of Medicine Khon Kaen University Khon Kaen Thailand
| | - Shu‐Fen Peng
- Department of Biological Science and Technology China Medical University Taichung Taiwan
- Department of Medical Research China Medical University Hospital Taichung Taiwan
| | - Sakda Daduang
- Division of Pharmacognosy and Toxicology, Faculty of Pharmaceutical Science Khon Kaen University Khon Kaen Thailand
| | - Chanvit Leelayuwat
- Centre for Research and Development of Medical Diagnostic Laboratories, Faculty of Associated Medical Sciences Khon Kaen University Khon Kaen Thailand
| | - Chamsai Pientong
- HPV & EBV and Carcinogenesis Research Group Khon Kaen University Khon Kaen Thailand
| | - Jing‐Gung Chung
- Department of Biological Science and Technology China Medical University Taichung Taiwan
| | - Jureerut Daduang
- Centre for Research and Development of Medical Diagnostic Laboratories, Faculty of Associated Medical Sciences Khon Kaen University Khon Kaen Thailand
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45
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Serna N, Sánchez JM, Unzueta U, Sánchez-García L, Sánchez-Chardi A, Mangues R, Vázquez E, Villaverde A. Recruiting potent membrane penetrability in tumor cell-targeted protein-only nanoparticles. NANOTECHNOLOGY 2019; 30:115101. [PMID: 30561375 DOI: 10.1088/1361-6528/aaf959] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
The membrane pore-forming activities of the antimicrobial peptide GWH1 have been evaluated in combination with the CXCR4-binding properties of the peptide T22, in self-assembling protein nanoparticles with high clinical potential. The resulting materials, of 25 nm in size and with regular morphologies, show a dramatically improved cell penetrability into CXCR4+ cells (more than 10-fold) and enhanced endosomal escape (the lysosomal degradation dropping from 90% to 50%), when compared with equivalent protein nanoparticles lacking GWH1. These data reveal that GWH1 retains its potent membrane activity in form of nanostructured protein complexes. On the other hand, the specificity of T22 in the CXCR4 receptor binding is subsequently minimized but, unexpectedly, not abolished by the presence of the antimicrobial peptide. The functional combination T22-GWH1 results in 30% of the nanoparticles entering cells via CXCR4 while also exploiting pore-based uptake. Such functional materials are capable to selectively deliver highly potent cytotoxic drugs upon chemical conjugation, promoting CXCR4-dependent cell death. These data support the further development of GWH1-empowered cell-targeted proteins as nanoscale drug carriers for precision medicines. This is a very promising approach to overcome lysosomal degradation of protein nanostructured materials with therapeutic value.
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Affiliation(s)
- Naroa Serna
- Institut de Biotecnologia i de Biomedicina, Universitat Autònoma de Barcelona, Bellaterra, E-08193 Barcelona, Spain. Departament de Genètica i de Microbiologia, Universitat Autònoma de Barcelona, Bellaterra, E-08193 Barcelona, Spain. CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), Bellaterra, E-08193 Barcelona, Spain
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46
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Abstract
β-Defensins are small antimicrobial proteins expressed in various organisms and have great potential for improving animal health and selective breeding programs. Giant pandas have a distinctive lineage in Carnivora, and it is unclear whether β-defensin genes have experienced different selective pressures during giant panda evolution. We therefore characterized the giant panda (Ailuropoda melanoleuca) β-defensin gene family through gap filling, TBLASTN, and HMM searches. Among 36 β-defensins identified, gastrointestinal disease may induce the expression of the DEFB1 and DEFB139 genes in the digestive system. Moreover, for DEFB139, a significant positive selection different from that of its homologs was revealed through branch model comparisons. A Pro-to-Arg mutation in the giant panda DEFB139 mature peptide may have enhanced the peptide’s antimicrobial potency by increasing its stability, isoelectric point, surface charge and surface hydrophobicity, and by stabilizing its second β-sheet. Broth microdilution tests showed that the increase in net charge caused by the Pro-to-Arg mutation has enhanced the peptide’s potency against Staphylococcus aureus, although the increase was minor. We expect that additional gene function and expression studies of the giant panda DEFB139 gene could improve the existing conservation strategies for the giant panda.
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47
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Antibacterial activity and its mechanisms of a recombinant Funme peptide against Cronobacter sakazakii in powdered infant formula. Food Res Int 2018; 116:258-265. [PMID: 30716944 DOI: 10.1016/j.foodres.2018.08.030] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2018] [Revised: 07/23/2018] [Accepted: 08/11/2018] [Indexed: 12/30/2022]
Abstract
Cronobacter sakazakii (Cs) is a typical foodborne bacterium that infect powdered infant formula (PIF) worldwide. In this study, a recombinant antimicrobial peptide, branded as Funme peptide (FP)was applied to protect PIF from Cs contamination. The result from the antimicrobial activity assay showed that the minimum inhibitory concentration (MIC) of BMAP-27 peptide, FP and Ampicillin against Cs were 250.0, 125.0 and 15.6 μg/mL, respectively, indicating FP possessed higher MIC than that of Ampicillin, and lower MIC than that of BMAP-27. The minimum biofilm eradication concentration (MBEC) assay showed that FP at 2 × MIC (250.0 μg/mL) could completely eradicated Cs biofilms. The antibacterial activity of FP might be due to the increasing permeability and the release of cytoplasmic β-galactosidase of Cs. The results acquired from transmission electron microscopy and scanning electron microscopy indicated that FP induced the disruption and dysfunction of cell walls and membranes. Moreover, safety assay showed that FP had low cytotoxicity to human erythrocytes. The present study investigated the antibacterial effects and mechanisms of FP against Cs, providing promising evidence to apply this novel antimicrobial agent against Cs contamination in foods and food processing facilities.
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48
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López
Cascales JJ, Zenak S, García de la Torre J, Lezama OG, Garro A, Enriz RD. Small Cationic Peptides: Influence of Charge on Their Antimicrobial Activity. ACS OMEGA 2018; 3:5390-5398. [PMID: 30221230 PMCID: PMC6130792 DOI: 10.1021/acsomega.8b00293] [Citation(s) in RCA: 48] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/19/2018] [Accepted: 04/11/2018] [Indexed: 05/28/2023]
Abstract
The first stage of the action mechanism of small cationic peptides with antimicrobial activity is ruled by electrostatic interactions between the peptide and the pathogen cell membrane. Thus, an increase in its activity could be expected with an increase in the positive charge on the peptide. By contrast, the opposite behavior has been observed when the charge increases to reach a critical value, beyond which the activity falls. This work studies the perturbation effects in a cell membrane model for two small cationic peptides with similar length and morphology but with different cationic charges. The synthesis and antibacterial activity of the two peptides used in this study are described. The thermodynamic study associated with the insertion of these peptides into the membrane and the perturbing effects on the bilayer structure provide valuable insights into the molecular action mechanism associated with the charge of these small cationic peptides.
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Affiliation(s)
- José Javier López
Cascales
- Grupo
de Bioinformatica y Macromoleculas (BioMac), Area de Química
Física, Universidad Politécnica
de Cartagena, Aulario
II, Campus de Alfonso XIII, 30203 Cartagena, Murcia, Spain
| | - Siham Zenak
- Laboratoire
d’Etude Physique des Matériaux, Département de
Physique Energétique, Faculté de Physique, Université des Sciences et de la Technologie
d’Oran, BP 1505
El M’Naouer, Oran 31000, Algeria
| | - José García de la Torre
- Facultad
de Química, Departamento de Química Física, Universidad de Murcia, Campus de Espinardo, 30100 Espinardo, Murcia, Spain
| | | | - Adriana Garro
- Facultad
de Química, Bioquímica y Farmacia, IMIBIO-CONICET, Universidad Nacional de San Luis, Chacabuco 917, 5700 San Luis, Argentina
| | - Ricardo Daniel Enriz
- Facultad
de Química, Bioquímica y Farmacia, IMIBIO-CONICET, Universidad Nacional de San Luis, Chacabuco 917, 5700 San Luis, Argentina
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49
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Biswaro LS, da Costa Sousa MG, Rezende TMB, Dias SC, Franco OL. Antimicrobial Peptides and Nanotechnology, Recent Advances and Challenges. Front Microbiol 2018; 9:855. [PMID: 29867793 PMCID: PMC5953333 DOI: 10.3389/fmicb.2018.00855] [Citation(s) in RCA: 127] [Impact Index Per Article: 21.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2018] [Accepted: 04/13/2018] [Indexed: 12/18/2022] Open
Abstract
Antimicrobial peptides are sequences of amino acids, which present activity against microorganisms. These peptides were discovered over 70 years ago, and are abundant in nature from soil bacteria, insects, amphibians to mammals and plants. They vary in amino acids number, the distance between amino acids within individual peptide structure, net charge, solubility and other physical chemical properties as well as differ in mechanism of action. These peptides may provide an alternative treatment to conventional antibiotics, which encounter resistance such as the peptide nisin applied in treating methicillin resistant Staphylococcus aureus (MRSA) or may behave synergistically with known antibiotics against parasites for instance, nisin Z when used in synergy with ampicillin reported better activity against Pseudomonas fluorescens than when the antibiotic was alone. AMPs are known to be active against viruses, bacteria, fungi and protozoans. Nanotechnology is an arena which explores the synthesis, characterization and application of an array of delivery systems at a one billionth of meter scale. Such systems are implemented to deliver drugs, proteins, vaccines, and peptides. The role of nanotechnology in delivering AMPs is still at its early development stage. There are challenges of incorporating AMPs into drug delivery system. This review intends to explore in depth, the role of nanotechnology in delivering AMPs as well as presenting the current advances and accompanying challenges of the technology.
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Affiliation(s)
- Lubhandwa S Biswaro
- Center of Proteomic and Biochemical Analysis, Genomic Sciences and Biotechnology Program, Catholic University of Brasília, Brasília, Brazil
| | - Mauricio G da Costa Sousa
- Center of Proteomic and Biochemical Analysis, Genomic Sciences and Biotechnology Program, Catholic University of Brasília, Brasília, Brazil
| | - Taia M B Rezende
- Center of Proteomic and Biochemical Analysis, Genomic Sciences and Biotechnology Program, Catholic University of Brasília, Brasília, Brazil.,Catholic University of Brasília, Brasília, Brazil.,Health Science Program, University of Brasília, Brasília, Brazil
| | - Simoni C Dias
- Center of Proteomic and Biochemical Analysis, Genomic Sciences and Biotechnology Program, Catholic University of Brasília, Brasília, Brazil
| | - Octavio L Franco
- Center of Proteomic and Biochemical Analysis, Genomic Sciences and Biotechnology Program, Catholic University of Brasília, Brasília, Brazil.,S-Inova Biotech, Biotechnology Program, Dom Bosco Catholic University, Campo Grande, Brazil
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50
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Jia F, Wang J, Peng J, Zhao P, Kong Z, Wang K, Yan W, Wang R. The in vitro, in vivo antifungal activity and the action mode of Jelleine-I against Candida species. Amino Acids 2017; 50:229-239. [PMID: 29101485 DOI: 10.1007/s00726-017-2507-1] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2017] [Accepted: 10/24/2017] [Indexed: 11/28/2022]
Abstract
Recently, the mortality of life-threatening fungal infections increased dramatically. However, there are few antifungals existed. Antimicrobial peptides (AMPs) as promising antifungal candidates have attracted much attention. Here, we present a small antimicrobial peptide Jelleine-I that had potent in vitro and in vivo antifungal activity. Negligible hemolytic activity and in vivo toxicity were observed. Selectivity index (SI) of Jelleine-I is at least 4.6 times higher than amphotericin B. Jelleine-I could increase the production of cellular ROS and bind with genome DNA. This may contribute to its antifungal activity. Furthermore, drug resistance is not induced when the fungal cells were repeatedly treated by Jelleine-I. In conclusion, our results suggest that Jelleine-I may have the potential to be developed as a novel antifungal agent.
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Affiliation(s)
- Fengjing Jia
- Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Sciences, School of Life Sciences, Lanzhou University, 222 Tian Shui South Road, Lanzhou, 730000, People's Republic of China
| | - Jiayi Wang
- Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Sciences, School of Life Sciences, Lanzhou University, 222 Tian Shui South Road, Lanzhou, 730000, People's Republic of China
| | - Jinxiu Peng
- Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Sciences, School of Life Sciences, Lanzhou University, 222 Tian Shui South Road, Lanzhou, 730000, People's Republic of China
| | - Ping Zhao
- Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Sciences, School of Life Sciences, Lanzhou University, 222 Tian Shui South Road, Lanzhou, 730000, People's Republic of China
| | - Ziqing Kong
- Institute of Food Safety, State Key Laboratory Base of Food Quality and Safety, Ministry of Science and Technology, Jiangsu Academy of Agricultural Sciences, Nanjing, 210014, China
| | - Kairong Wang
- Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Sciences, School of Life Sciences, Lanzhou University, 222 Tian Shui South Road, Lanzhou, 730000, People's Republic of China.
| | - Wenjin Yan
- Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Sciences, School of Life Sciences, Lanzhou University, 222 Tian Shui South Road, Lanzhou, 730000, People's Republic of China.
| | - Rui Wang
- Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Sciences, School of Life Sciences, Lanzhou University, 222 Tian Shui South Road, Lanzhou, 730000, People's Republic of China.
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