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Alipour-Khezri E, Skurnik M, Zarrini G. Pseudomonas aeruginosa Bacteriophages and Their Clinical Applications. Viruses 2024; 16:1051. [PMID: 39066214 PMCID: PMC11281547 DOI: 10.3390/v16071051] [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: 04/19/2024] [Revised: 06/25/2024] [Accepted: 06/26/2024] [Indexed: 07/28/2024] Open
Abstract
Antimicrobial resistance poses a serious risk to contemporary healthcare since it reduces the number of bacterial illnesses that may be treated with antibiotics, particularly for patients with long-term conditions like cystic fibrosis (CF). People with a genetic predisposition to CF often have recurrent bacterial infections in their lungs due to a buildup of sticky mucus, necessitating long-term antibiotic treatment. Pseudomonas aeruginosa infections are a major cause of CF lung illness, and P. aeruginosa airway isolates are frequently resistant to many antibiotics. Bacteriophages (also known as phages), viruses that infect bacteria, are a viable substitute for antimicrobials to treat P. aeruginosa infections in individuals with CF. Here, we reviewed the utilization of P. aeruginosa bacteriophages both in vivo and in vitro, as well as in the treatment of illnesses and diseases, and the outcomes of the latter.
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Affiliation(s)
- Elaheh Alipour-Khezri
- Department of Animal Biology, Faculty of Natural Sciences, University of Tabriz, Tabriz 51368, Iran;
| | - Mikael Skurnik
- Human Microbiome Research Program, and Department of Bacteriology and Immunology, Faculty of Medicine, University of Helsinki, 00290 Helsinki, Finland
| | - Gholamreza Zarrini
- Department of Animal Biology, Faculty of Natural Sciences, University of Tabriz, Tabriz 51368, Iran;
- Microbial Biotechnology Research Group, University of Tabriz, Tabriz 51368, Iran
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2
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Al-Anany AM, Fatima R, Nair G, Mayol JT, Hynes AP. Temperate phage-antibiotic synergy across antibiotic classes reveals new mechanism for preventing lysogeny. mBio 2024; 15:e0050424. [PMID: 38757974 PMCID: PMC11237771 DOI: 10.1128/mbio.00504-24] [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: 02/21/2024] [Accepted: 04/18/2024] [Indexed: 05/18/2024] Open
Abstract
A recent demonstration of synergy between a temperate phage and the antibiotic ciprofloxacin suggested a scalable approach to exploiting temperate phages in therapy, termed temperate phage-antibiotic synergy, which specifically interacted with the lysis-lysogeny decision. To determine whether this would hold true across antibiotics, we challenged Escherichia coli with the phage HK97 and a set of 13 antibiotics spanning seven classes. As expected, given the conserved induction pathway, we observed synergy with classes of drugs known to induce an SOS response: a sulfa drug, other quinolones, and mitomycin C. While some β-lactams exhibited synergy, this appeared to be traditional phage-antibiotic synergy, with no effect on the lysis-lysogeny decision. Curiously, we observed a potent synergy with antibiotics not known to induce the SOS response: protein synthesis inhibitors gentamicin, kanamycin, tetracycline, and azithromycin. The synergy results in an eightfold reduction in the effective minimum inhibitory concentration of gentamicin, complete eradication of the bacteria, and, when administered at sub-optimal doses, drastically decreases the frequency of lysogens emerging from the combined challenge. However, lysogens exhibit no increased sensitivity to the antibiotic; synergy was maintained in the absence of RecA; and the antibiotic reduced the initial frequency of lysogeny rather than selecting against formed lysogens. Our results confirm that SOS-inducing antibiotics broadly result in temperate-phage-specific synergy, but that other antibiotics can interact with temperate phages specifically and result in synergy. This is the first report of a means of chemically blocking entry into lysogeny, providing a new means for manipulating the key lysis-lysogeny decision.IMPORTANCEThe lysis-lysogeny decision is made by most bacterial viruses (bacteriophages, phages), determining whether to kill their host or go dormant within it. With over half of the bacteria containing phages waiting to wake, this is one of the most important behaviors in all of biology. These phages are also considered unusable for therapy because of this behavior. In this paper, we show that many antibiotics bias this behavior to "wake" the dormant phages, forcing them to kill their host, but some also prevent dormancy in the first place. These will be important tools to study this critical decision point and may enable the therapeutic use of these phages.
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Affiliation(s)
- Amany M Al-Anany
- Department of Biochemistry and Biomedical Sciences, McMaster University, Hamilton, Ontario, Canada
| | - Rabia Fatima
- Department of Biochemistry and Biomedical Sciences, McMaster University, Hamilton, Ontario, Canada
| | - Gayatri Nair
- Department of Medicine, McMaster University, Hamilton, Ontario, Canada
| | - Jordan T Mayol
- Department of Biochemistry and Biomedical Sciences, McMaster University, Hamilton, Ontario, Canada
| | - Alexander P Hynes
- Department of Biochemistry and Biomedical Sciences, McMaster University, Hamilton, Ontario, Canada
- Department of Medicine, McMaster University, Hamilton, Ontario, Canada
- Farncombe Family Digestive Health Research Institute, McMaster University, Hamilton, Ontario, Canada
- Michael G. DeGroote Institute for Infectious Disease Research, McMaster University, Hamilton, Ontario, Canada
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De Soir S, Parée H, Kamarudin NHN, Wagemans J, Lavigne R, Braem A, Merabishvili M, De Vos D, Pirnay JP, Van Bambeke F. Exploiting phage-antibiotic synergies to disrupt Pseudomonas aeruginosa PAO1 biofilms in the context of orthopedic infections. Microbiol Spectr 2024; 12:e0321923. [PMID: 38084971 PMCID: PMC10783084 DOI: 10.1128/spectrum.03219-23] [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: 09/06/2023] [Accepted: 11/20/2023] [Indexed: 01/13/2024] Open
Abstract
IMPORTANCE Biofilm-related infections are among the most difficult-to-treat infections in all fields of medicine due to their antibiotic tolerance and persistent character. In the field of orthopedics, these biofilms often lead to therapeutic failure of medical implantable devices and urgently need novel treatment strategies. This forthcoming article aims to explore the dynamic interplay between newly isolated bacteriophages and routinely used antibiotics and clearly indicates synergetic patterns when used as a dual treatment modality. Biofilms were drastically more reduced when both active agents were combined, thereby providing additional evidence that phage-antibiotic combinations lead to synergism and could potentially improve clinical outcome for affected patients.
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Affiliation(s)
- Steven De Soir
- Pharmacologie cellulaire et moléculaire, Louvain Drug Research Institute, Université catholique de Louvain, Brussels, Belgium
- Laboratory for Molecular and Cellular Technology (LabMCT), Queen Astrid Military Hospital, Neder-over-Heembeek, Belgium
| | - Hortence Parée
- Pharmacologie cellulaire et moléculaire, Louvain Drug Research Institute, Université catholique de Louvain, Brussels, Belgium
| | - Nur Hidayatul Nazirah Kamarudin
- Department of Materials Engineering, Biomaterials and Tissue Engineering Research Group, KU Leuven, Leuven, Belgium
- Department of Chemical and Process Engineering, Faculty of Engineering and Built Environment, Universiti Kebangsaan Malaysia, Bangi, Selangor, Malaysia
| | | | - Rob Lavigne
- Laboratory of Gene Technology, KU Leuven, Leuven, Belgium
| | - Annabel Braem
- Department of Materials Engineering, Biomaterials and Tissue Engineering Research Group, KU Leuven, Leuven, Belgium
| | - Maya Merabishvili
- Laboratory for Molecular and Cellular Technology (LabMCT), Queen Astrid Military Hospital, Neder-over-Heembeek, Belgium
| | - Daniel De Vos
- Laboratory for Molecular and Cellular Technology (LabMCT), Queen Astrid Military Hospital, Neder-over-Heembeek, Belgium
| | - Jean-Paul Pirnay
- Laboratory for Molecular and Cellular Technology (LabMCT), Queen Astrid Military Hospital, Neder-over-Heembeek, Belgium
| | - Françoise Van Bambeke
- Pharmacologie cellulaire et moléculaire, Louvain Drug Research Institute, Université catholique de Louvain, Brussels, Belgium
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4
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Sarat N, Salim A, Pal S, Subhash S, Prasad M, Nair BG, Madhavan A. Mitigation of biogenic methanethiol using bacteriophages in synthetic wastewater augmented with Pseudomonas putida. Sci Rep 2023; 13:19480. [PMID: 37945592 PMCID: PMC10636157 DOI: 10.1038/s41598-023-46938-8] [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: 08/27/2023] [Accepted: 11/07/2023] [Indexed: 11/12/2023] Open
Abstract
Wastewater malodour is the proverbial 'elephant in the room' notwithstanding its severe implications on sanitation, health, and hygiene. The predominant malodorous compounds associated with wastewater treatment plants and toilets are volatile organic compounds, such as hydrogen sulphide, ammonia, methanethiol, and organic acids. Among them, methanethiol warrants more attention owing to its relatively low olfactory threshold and associated cytotoxicity. This requires an efficient odour-abatement method since conventional techniques are either cost-prohibitive or leave recalcitrant byproducts. Bacteriophage-based methodology holds promise, and the described work explores the potential. In this study, a non-lysogenous Pseudomonas putida strain is used as a model organism that produces methanethiol in the presence of methionine. Two double-stranded DNA phages of genome sizes > 10 Kb were isolated from sewage. ɸPh_PP01 and ɸPh_PP02 were stable at suboptimal pH, temperature, and at 10% chloroform. Moreover, they showed adsorption efficiencies of 53% and 89% in 12 min and burst sizes of 507 ± 187 and 105 ± 7 virions per cell, respectively. In augmented synthetic wastewater, ɸPh_PP01 and ɸPh_PP02 reduced methanethiol production by 52% and 47%, respectively, with the concomitant reduction in P. putida by 3 logs in 6 h. On extension of the study in P. putida spiked-sewage sample, maximum reduction in methanethiol production was achieved in 3 h, with 49% and 48% for ɸPh_PP01 and ɸPh_PP02, respectively. But at 6 h, efficiency reduced to 36% with both the phages. The study clearly demonstrates the potential of phages as biocontrol agents in the reduction of malodour in wastewater.
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Affiliation(s)
- Niti Sarat
- School of Biotechnology, Amrita Vishwa Vidyapeetham, Clappana, Kerala, 690525, India
| | - Amrita Salim
- School of Biotechnology, Amrita Vishwa Vidyapeetham, Clappana, Kerala, 690525, India
| | - Sanjay Pal
- School of Biotechnology, Amrita Vishwa Vidyapeetham, Clappana, Kerala, 690525, India.
| | - Suja Subhash
- School of Biotechnology, Amrita Vishwa Vidyapeetham, Clappana, Kerala, 690525, India
| | - Megha Prasad
- School of Biotechnology, Amrita Vishwa Vidyapeetham, Clappana, Kerala, 690525, India
| | - Bipin G Nair
- School of Biotechnology, Amrita Vishwa Vidyapeetham, Clappana, Kerala, 690525, India
| | - Ajith Madhavan
- School of Biotechnology, Amrita Vishwa Vidyapeetham, Clappana, Kerala, 690525, India.
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Guo X, Zhang J, Wang Y, Zhou F, Li Q, Teng T. Phenotypic Characterization and Comparative Genomic Analyses of Mycobacteriophage WIVsmall as A New Member Assigned to F1 Subcluster. Curr Issues Mol Biol 2023; 45:6432-6448. [PMID: 37623225 PMCID: PMC10453261 DOI: 10.3390/cimb45080406] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2023] [Revised: 07/28/2023] [Accepted: 07/31/2023] [Indexed: 08/26/2023] Open
Abstract
In this study, we conducted the morphological observation, biological and genomic characterization, evolutionary analysis, comparative genomics description, and proteome identification of a recently isolated mycobacteriophage, WIVsmall. Morphologically, WIVsmall is classified as a member of the Siphoviridae family, characterized by a flexible tail, measuring approximately 212 nm in length. The double-stranded phage genome DNA of WIVsmall spans 53,359 base pairs, and exhibits a G + C content of 61.01%. The genome of WIVsmall comprises 103 protein-coding genes, while no tRNA genes were detected. The genome annotation unveiled the presence of functional gene clusters responsible for mycobacteriophage assembly and maturation, replication, cell lysis, and functional protein synthesis. Based on the analysis of the phylogenetic tree, the genome of WIVsmall was classified as belonging to subgroup F1. A comparative genomics analysis indicated that the WIVsmall genome exhibited the highest similarity to the phage SG4, with a percentage of 64%. The single-step growth curve analysis of WIVsmall revealed a latent period of 120 min, and an outbreak period of 200 min.
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Affiliation(s)
- Xinge Guo
- Institute of Biomedical Informatics, School of Basic Medical Sciences, Henan University, Kaifeng 475004, China
| | - Jing Zhang
- Institute of Biomedical Informatics, School of Basic Medical Sciences, Henan University, Kaifeng 475004, China
| | - Yuhan Wang
- Institute of Biomedical Informatics, School of Basic Medical Sciences, Henan University, Kaifeng 475004, China
| | - Fang Zhou
- Institute of Biomedical Informatics, School of Basic Medical Sciences, Henan University, Kaifeng 475004, China
| | - Qiming Li
- Institute of Biomedical Informatics, School of Basic Medical Sciences, Henan University, Kaifeng 475004, China
| | - Tieshan Teng
- Institute of Biomedical Informatics, School of Basic Medical Sciences, Henan University, Kaifeng 475004, China
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Fungo GBN, Uy JCW, Porciuncula KLJ, Candelario CMA, Chua DPS, Gutierrez TAD, Clokie MRJ, Papa DMD. "Two Is Better Than One": The Multifactorial Nature of Phage-Antibiotic Combinatorial Treatments Against ESKAPE-Induced Infections. PHAGE (NEW ROCHELLE, N.Y.) 2023; 4:55-67. [PMID: 37350995 PMCID: PMC10282822 DOI: 10.1089/phage.2023.0007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/24/2023]
Abstract
Phage-antibiotic synergy (PAS) has been extensively explored over the past decade, with the aim of developing more effective treatments against multidrug-resistant organisms. However, it remains unclear how to effectively combine these two approaches. To address this uncertainty, we assessed four main aspects of PAS interactions in this review, seeking to identify commonalities of combining treatments within and between bacterial species. We examined all literature on PAS efficacy toward ESKAPE pathogens and present an analysis of the data in papers focusing on: (1) order of treatment, (2) dose of both phage and antibiotics, (3) mechanism of action, and (4) viability of transfer from in vivo or animal model trials to clinical applications. Our analysis indicates that there is little consistency within phage-antibiotic therapy regimens, suggesting that highly individualized treatment regimens should be used. We propose a set of experimental studies to address these research gaps. We end our review with suggestions on how to improve studies on phage-antibiotic combination therapy to advance this field.
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Affiliation(s)
- Gale Bernice N. Fungo
- Department of Biological Sciences, College of Science, University of Santo Tomas, Manila, Philippines
- Bacteriophage Ecology, Aquaculture, Therapy and Systematics (BEATS) Research Group, University of Santo Tomas, Manila, Philippines
- Research Center for Natural and Applied Sciences, University of Santo Tomas, Manila, Philippines
| | - John Christian W. Uy
- Department of Biological Sciences, College of Science, University of Santo Tomas, Manila, Philippines
- Bacteriophage Ecology, Aquaculture, Therapy and Systematics (BEATS) Research Group, University of Santo Tomas, Manila, Philippines
- Research Center for Natural and Applied Sciences, University of Santo Tomas, Manila, Philippines
| | - Kristiana Louise J. Porciuncula
- Department of Biological Sciences, College of Science, University of Santo Tomas, Manila, Philippines
- Bacteriophage Ecology, Aquaculture, Therapy and Systematics (BEATS) Research Group, University of Santo Tomas, Manila, Philippines
- Research Center for Natural and Applied Sciences, University of Santo Tomas, Manila, Philippines
| | - Chiarah Mae A. Candelario
- Department of Biological Sciences, College of Science, University of Santo Tomas, Manila, Philippines
- Bacteriophage Ecology, Aquaculture, Therapy and Systematics (BEATS) Research Group, University of Santo Tomas, Manila, Philippines
- Research Center for Natural and Applied Sciences, University of Santo Tomas, Manila, Philippines
| | - Deneb Philip S. Chua
- Department of Biological Sciences, College of Science, University of Santo Tomas, Manila, Philippines
- Bacteriophage Ecology, Aquaculture, Therapy and Systematics (BEATS) Research Group, University of Santo Tomas, Manila, Philippines
- Research Center for Natural and Applied Sciences, University of Santo Tomas, Manila, Philippines
| | - Tracey Antaeus D. Gutierrez
- Bacteriophage Ecology, Aquaculture, Therapy and Systematics (BEATS) Research Group, University of Santo Tomas, Manila, Philippines
- Research Center for Natural and Applied Sciences, University of Santo Tomas, Manila, Philippines
| | | | - Donna May D. Papa
- Department of Biological Sciences, College of Science, University of Santo Tomas, Manila, Philippines
- Bacteriophage Ecology, Aquaculture, Therapy and Systematics (BEATS) Research Group, University of Santo Tomas, Manila, Philippines
- Research Center for Natural and Applied Sciences, University of Santo Tomas, Manila, Philippines
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7
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Abedon ST. Bacteriophage Adsorption: Likelihood of Virion Encounter with Bacteria and Other Factors Affecting Rates. Antibiotics (Basel) 2023; 12:723. [PMID: 37107086 PMCID: PMC10135360 DOI: 10.3390/antibiotics12040723] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2023] [Revised: 03/29/2023] [Accepted: 04/05/2023] [Indexed: 04/29/2023] Open
Abstract
For ideal gasses, the likelihood of collision of two molecules is a function of concentrations as well as environmental factors such as temperature. This too is the case for particles diffusing within liquids. Two such particles are bacteria and their viruses, the latter called bacteriophages or phages. Here, I review the basic process of predicting the likelihoods of phage collision with bacteria. This is a key step governing rates of phage-virion adsorption to their bacterial hosts, thereby underlying a large fraction of the potential for a given phage concentration to affect a susceptible bacterial population. Understanding what can influence those rates is very relevant to appreciating both phage ecology and the phage therapy of bacterial infections, i.e., where phages are used to augment or replace antibiotics; so too adsorption rates are highly important for predicting the potential for phage-mediated biological control of environmental bacteria. Particularly emphasized here, however, are numerous complications on phage adsorption rates beyond as dictated by the ideals of standard adsorption theory. These include movements other than due to diffusion, various hindrances to diffusive movement, and the influence of assorted heterogeneities. Considered chiefly are the biological consequences of these various phenomena rather than their mathematical underpinnings.
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do Socorro Fôro Ramos E, Bahia SL, de Oliveira Ribeiro G, Villanova F, de Pádua Milagres FA, Brustulin R, Pandey RP, Deng X, Delwart E, da Costa AC, Leal É. Characterization of Phietavirus Henu 2 in the virome of individuals with acute gastroenteritis. Virus Genes 2023; 59:464-472. [PMID: 37004601 DOI: 10.1007/s11262-023-01990-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2022] [Accepted: 03/15/2023] [Indexed: 04/04/2023]
Abstract
There is a growing interest in phages as potential biotechnological tools in human health owing to the antibacterial activity of these viruses. In this study, we characterized a new member (named PhiV_005_BRA/2016) of the recently identified phage species Phietavirus Henu 2. PhiV_005_BRA/2016 was detected through metagenomic analysis of stool samples of individuals with acute gastroenteritis. PhiV_005_BRA/2016 contains double-stranded linear DNA (dsDNA), it has a genome of 43,513 base pairs (bp), with a high identity score (99%) with phage of the genus Phietavirus, species of Phietavirus Henu 2. Life style prediction indicated that PhiV_005_BRA/2016 is a lysogenic phage whose the main host is methicillin-resistant Staphylococcus aureus (MRSA). Indeed, we found PhiV_005_BRA/2016 partially integrated in the genome of distinct MRSA strains. Our findings highlights the importance of large-scale screening of bacteriophages to better understand the emergence of multi-drug resistant bacterial.
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Affiliation(s)
- Endrya do Socorro Fôro Ramos
- Laboratório de Diversidade Viral, Instituto de Ciências Biológicais, Universidade Federal do Pará, Belém, Pará, 66075-000, Brazil
| | - Santana Lobato Bahia
- Laboratório de Diversidade Viral, Instituto de Ciências Biológicais, Universidade Federal do Pará, Belém, Pará, 66075-000, Brazil
| | - Geovani de Oliveira Ribeiro
- Laboratório de Diversidade Viral, Instituto de Ciências Biológicais, Universidade Federal do Pará, Belém, Pará, 66075-000, Brazil
| | - Fabiola Villanova
- Laboratório de Diversidade Viral, Instituto de Ciências Biológicais, Universidade Federal do Pará, Belém, Pará, 66075-000, Brazil
| | - Flávio Augusto de Pádua Milagres
- Secretaria de Saúde do Tocantins, Palmas, Tocantins, 77453-000, Brazil
- Laboratório Central de Saúde Pública do Tocantins (LACEN/TO), Palmas, Tocantins, 77016-330, Brazil
| | - Rafael Brustulin
- Secretaria de Saúde do Tocantins, Palmas, Tocantins, 77453-000, Brazil
- Laboratório Central de Saúde Pública do Tocantins (LACEN/TO), Palmas, Tocantins, 77016-330, Brazil
| | - Ramendra Pati Pandey
- Centre for Drug Design Discovery and Development (C4D), SRM University Delhi-NCR, Rajiv Gandhi Education City, Sonepat, Haryana, 131029, India
| | - Xutao Deng
- Vitalant Research Institute, 270 Masonic Avenue, San Francisco, CA, 94118-4417, USA
- Department Laboratory Medicine, University of California San Francisco, San Francisco, CA, 94143, USA
| | - Eric Delwart
- Vitalant Research Institute, 270 Masonic Avenue, San Francisco, CA, 94118-4417, USA
- Department Laboratory Medicine, University of California San Francisco, San Francisco, CA, 94143, USA
| | | | - Élcio Leal
- Laboratório de Diversidade Viral, Instituto de Ciências Biológicais, Universidade Federal do Pará, Belém, Pará, 66075-000, Brazil.
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Shoaib M, Aqib AI, Muzammil I, Majeed N, Bhutta ZA, Kulyar MFEA, Fatima M, Zaheer CNF, Muneer A, Murtaza M, Kashif M, Shafqat F, Pu W. MRSA compendium of epidemiology, transmission, pathophysiology, treatment, and prevention within one health framework. Front Microbiol 2023; 13:1067284. [PMID: 36704547 PMCID: PMC9871788 DOI: 10.3389/fmicb.2022.1067284] [Citation(s) in RCA: 18] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2022] [Accepted: 12/19/2022] [Indexed: 01/12/2023] Open
Abstract
Staphylococcus aureus is recognized as commensal as well as opportunistic pathogen of humans and animals. Methicillin resistant strain of S. aureus (MRSA) has emerged as a major pathogen in hospitals, community and veterinary settings that compromises the public health and livestock production. MRSA basically emerged from MSSA after acquiring SCCmec element through gene transfer containing mecA gene responsible for encoding PBP-2α. This protein renders the MRSA resistant to most of the β-lactam antibiotics. Due to the continuous increasing prevalence and transmission of MRSA in hospitals, community and veterinary settings posing a major threat to public health. Furthermore, high pathogenicity of MRSA due to a number of virulence factors produced by S. aureus along with antibiotic resistance help to breach the immunity of host and responsible for causing severe infections in humans and animals. The clinical manifestations of MRSA consist of skin and soft tissues infection to bacteremia, septicemia, toxic shock, and scalded skin syndrome. Moreover, due to the increasing resistance of MRSA to number of antibiotics, there is need to approach alternatives ways to overcome economic as well as human losses. This review is going to discuss various aspects of MRSA starting from emergence, transmission, epidemiology, pathophysiology, disease patterns in hosts, novel treatment, and control strategies.
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Affiliation(s)
- Muhammad Shoaib
- Key Laboratory of New Animal Drug Project, Gansu Province/Key Laboratory of Veterinary Pharmaceutical Development, Ministry of Agriculture and Rural Affairs/Lanzhou Institute of Husbandry and Pharmaceutical Sciences of the Chinese Academy of Agricultural Sciences, Lanzhou, China
| | - Amjad Islam Aqib
- Department of Medicine, Cholistan University of Veterinary and Animal Sciences, Bahawalpur, Pakistan
| | - Iqra Muzammil
- Department of Medicine, University of Veterinary and Animal Sciences, Lahore, Pakistan
| | - Noreen Majeed
- Institute of Microbiology, University of Agriculture, Faisalabad, Pakistan
| | - Zeeshan Ahmad Bhutta
- Laboratory of Biochemistry and Immunology, College of Veterinary Medicine, Chungbuk National University, Cheongju, Republic of Korea
| | | | - Mahreen Fatima
- Faculty of Biosciences, Cholistan University of Veterinary and Animal Sciences, Bahawalpur, Pakistan
| | | | - Afshan Muneer
- Department of Zoology, Cholistan University of Veterinary and Animal Sciences, Bahawalpur, Pakistan
| | - Maheen Murtaza
- Department of Zoology, Cholistan University of Veterinary and Animal Sciences, Bahawalpur, Pakistan
| | - Muhammad Kashif
- Department of Microbiology, Cholistan University of Veterinary and Animal Sciences, Bahawalpur, Pakistan
| | - Furqan Shafqat
- Department of Microbiology, Cholistan University of Veterinary and Animal Sciences, Bahawalpur, Pakistan
| | - Wanxia Pu
- Key Laboratory of New Animal Drug Project, Gansu Province/Key Laboratory of Veterinary Pharmaceutical Development, Ministry of Agriculture and Rural Affairs/Lanzhou Institute of Husbandry and Pharmaceutical Sciences of the Chinese Academy of Agricultural Sciences, Lanzhou, China
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10
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Genomic characterization of lytic bacteriophages A¥L and A¥M infecting ESBL K. pneumoniae and its therapeutic potential on biofilm dispersal and in-vivo bacterial clearance. Microbiol Res 2022; 262:127104. [DOI: 10.1016/j.micres.2022.127104] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2022] [Revised: 04/08/2022] [Accepted: 06/22/2022] [Indexed: 11/19/2022]
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Nikolic I, Vukovic D, Gavric D, Cvetanovic J, Aleksic Sabo V, Gostimirovic S, Narancic J, Knezevic P. An Optimized Checkerboard Method for Phage-Antibiotic Synergy Detection. Viruses 2022; 14:1542. [PMID: 35891522 PMCID: PMC9319746 DOI: 10.3390/v14071542] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2022] [Revised: 07/07/2022] [Accepted: 07/08/2022] [Indexed: 12/10/2022] Open
Abstract
Phage-antibiotic synergy is a promising therapeutic strategy, but there is no reliable method for synergism estimation. Although the time-kill curve assay is a gold standard, the method is not appropriate for fast and extensive screening of the synergy. The aim is to optimize the checkerboard method to determine phage-chemical agent interactions, to check its applicability by the time-kill curve method, and to examine whether the synergy can be obtained with both simultaneous and successive applications of these agents. In addition, the aim is to determine interactions of the Pseudomonas phage JG024 with ciprofloxacin, gentamicin, or ceftriaxone, as well as the Staphylococcus phage MSA6 and SES43300 with ciprofloxacin, gentamicin, and oxacillin. The results show that the optimized checkerboard method is reliable and that results correspond to those obtained by the time-kill curve. The synergy is detected with the phage JG024 and ciprofloxacin or ceftriaxone against Pseudomonas aeruginosa, and the phage SES43300 with ciprofloxacin against MRSA. The synergy was obtained after simultaneous applications, and in the case of P. aeruginosa, after application of the second agent with delay of one hour, indicating that simultaneous application is the best mode of synergy exploitation for therapy. The checkerboard method can be used for thorough clinical studies on synergy and in the future for personalized therapy when infections are caused by multiple resistant bacteria.
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Affiliation(s)
| | | | | | | | | | | | | | - Petar Knezevic
- PK Laboratory, Department of Biology and Ecology, Faculty of Sciences, Trg Dositeja Obradovica 3, University of Novi Sad, 21000 Novi Sad, Serbia; (I.N.); (D.V.); (D.G.); (J.C.); (V.A.S.); (S.G.); (J.N.)
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Łusiak-Szelachowska M, Międzybrodzki R, Drulis-Kawa Z, Cater K, Knežević P, Winogradow C, Amaro K, Jończyk-Matysiak E, Weber-Dąbrowska B, Rękas J, Górski A. Bacteriophages and antibiotic interactions in clinical practice: what we have learned so far. J Biomed Sci 2022; 29:23. [PMID: 35354477 PMCID: PMC8969238 DOI: 10.1186/s12929-022-00806-1] [Citation(s) in RCA: 49] [Impact Index Per Article: 24.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2021] [Accepted: 03/24/2022] [Indexed: 01/04/2023] Open
Abstract
Bacteriophages (phages) may be used as an alternative to antibiotic therapy for combating infections caused by multidrug-resistant bacteria. In the last decades, there have been studies concerning the use of phages and antibiotics separately or in combination both in animal models as well as in humans. The phenomenon of phage–antibiotic synergy, in which antibiotics may induce the production of phages by bacterial hosts has been observed. The potential mechanisms of phage and antibiotic synergy was presented in this paper. Studies of a biofilm model showed that a combination of phages with antibiotics may increase removal of bacteria and sequential treatment, consisting of phage administration followed by an antibiotic, was most effective in eliminating biofilms. In vivo studies predominantly show the phenomenon of phage and antibiotic synergy. A few studies also describe antagonism or indifference between phages and antibiotics. Recent papers regarding the application of phages and antibiotics in patients with severe bacterial infections show the effectiveness of simultaneous treatment with both antimicrobials on the clinical outcome.
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Affiliation(s)
- Marzanna Łusiak-Szelachowska
- Bacteriophage Laboratory, Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, 53-114, Wrocław, Poland.
| | - Ryszard Międzybrodzki
- Bacteriophage Laboratory, Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, 53-114, Wrocław, Poland.,Phage Therapy Unit, Medical Center of the Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, 53-114, Wrocław, Poland.,Department of Clinical Immunology, Transplantation Institute, Medical University of Warsaw, 02-006, Warsaw, Poland
| | - Zuzanna Drulis-Kawa
- Department of Pathogen Biology and Immunology, University of Wrocław, 51-148, Wrocław, Poland
| | - Kathryn Cater
- Rush University Medical Center, 1620 W. Harrison St., Chicago, IL, 60612, USA
| | - Petar Knežević
- Department of Biology and Ecology, Faculty of Sciences, University of Novi Sad, 21000, Novi Sad, Republic of Serbia
| | - Cyprian Winogradow
- Faculty of Life Sciences, University College London, London, WC1E 6BT, UK
| | | | - Ewa Jończyk-Matysiak
- Bacteriophage Laboratory, Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, 53-114, Wrocław, Poland
| | - Beata Weber-Dąbrowska
- Bacteriophage Laboratory, Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, 53-114, Wrocław, Poland.,Phage Therapy Unit, Medical Center of the Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, 53-114, Wrocław, Poland
| | - Justyna Rękas
- Bacteriophage Laboratory, Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, 53-114, Wrocław, Poland
| | - Andrzej Górski
- Bacteriophage Laboratory, Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, 53-114, Wrocław, Poland.,Phage Therapy Unit, Medical Center of the Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, 53-114, Wrocław, Poland.,Infant Jesus Hospital, Medical University of Warsaw, 02-005, Warsaw, Poland
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Walsh L, Johnson CN, Hill C, Ross RP. Efficacy of Phage- and Bacteriocin-Based Therapies in Combatting Nosocomial MRSA Infections. Front Mol Biosci 2021; 8:654038. [PMID: 33996906 PMCID: PMC8116899 DOI: 10.3389/fmolb.2021.654038] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2021] [Accepted: 04/07/2021] [Indexed: 12/21/2022] Open
Abstract
Staphylococcus aureus is a pathogen commonly found in nosocomial environments where infections can easily spread - especially given the reduced immune response of patients and large overlap between personnel in charge of their care. Although antibiotics are available to treat nosocomial infections, the increased occurrence of antibiotic resistance has rendered many treatments ineffective. Such is the case for methicillin resistant S. aureus (MRSA), which has continued to be a threat to public health since its emergence. For this reason, alternative treatment technologies utilizing antimicrobials such as bacteriocins, bacteriophages (phages) and phage endolysins are being developed. These antimicrobials provide an advantage over antibiotics in that many have narrow inhibition spectra, enabling treatments to be selected based on the target (pathogenic) bacterium while allowing for survival of commensal bacteria and thus avoiding collateral damage to the microbiome. Bacterial resistance to these treatments occurs less frequently than with antibiotics, particularly in circumstances where combinatory antimicrobial therapies are used. Phage therapy has been well established in Eastern Europe as an effective treatment against bacterial infections. While there are no Randomized Clinical Trials (RCTs) to our knowledge examining phage treatment of S. aureus infections that have completed all trial phases, numerous clinical trials are underway, and several commercial phage preparations are currently available to treat S. aureus infections. Bacteriocins have primarily been used in the food industry for bio-preservation applications. However, the idea of repurposing bacteriocins for human health is an attractive one considering their efficacy against many bacterial pathogens. There are concerns about the ability of bacteriocins to survive the gastrointestinal tract given their proteinaceous nature, however, this obstacle may be overcome by altering the administration route of the therapy through encapsulation, or by bioengineering protease-resistant variants. Obstacles such as enzymatic digestion are less of an issue for topical/local administration, for example, application to the surface of the skin. Bacteriocins have also shown impressive synergistic effects when used in conjunction with other antimicrobials, including antibiotics, which may allow antibiotic-based therapies to be used more sparingly with less resistance development. This review provides an updated account of known bacteriocins, phages and phage endolysins which have demonstrated an impressive ability to kill S. aureus strains. In particular, examples of antimicrobials with the ability to target MRSA strains and their subsequent use in a clinical setting are outlined.
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Affiliation(s)
- Lauren Walsh
- School of Microbiology, University College Cork, Cork, Ireland.,APC Microbiome Ireland, University College Cork, Cork, Ireland
| | - Crystal N Johnson
- School of Microbiology, University College Cork, Cork, Ireland.,APC Microbiome Ireland, University College Cork, Cork, Ireland.,Teagasc Food Research Centre, Moorepark, Cork, Ireland
| | - Colin Hill
- School of Microbiology, University College Cork, Cork, Ireland.,APC Microbiome Ireland, University College Cork, Cork, Ireland
| | - R Paul Ross
- School of Microbiology, University College Cork, Cork, Ireland.,APC Microbiome Ireland, University College Cork, Cork, Ireland.,Teagasc Food Research Centre, Moorepark, Cork, Ireland
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