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Lu Y, Lu Y, Li B, Liu J, Wang L, Zhang L, Li Y, Zhong Q. StAP1 phage: an effective tool for treating methicillin-resistant Staphylococcus aureus infections. Front Microbiol 2023; 14:1267786. [PMID: 37840707 PMCID: PMC10570516 DOI: 10.3389/fmicb.2023.1267786] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2023] [Accepted: 09/07/2023] [Indexed: 10/17/2023] Open
Abstract
Introduction Staphylococcus aureus infection has long been a serious concern in the medical field, with methicillin-resistant Staphylococcus aureus (MRSA) posing a considerable challenge to public health. Given the escalating bacterial resistance and the favorable biosafety and environmental properties of phages, the resurgence of phage therapy offers a promising alternative to antibiotics. Methods In this study, we isolated and characterized a MRSA phage named StAP1 from a Chinese hospital. Phenotypic and molecular analyses revealed its broad-spectrum characteristics, genomic background, and potential application in MRSA infection treatment. Results Morphological examination classified the phage as a member of the Herelleviridae phage family, displaying a typical hexagonal head and a slender fibrous tail. Genomic analysis unveiled a size of ~144,705 bp for the StAP1 genome, encompassing 215 open reading frames (ORFs). The one-step growth curve demonstrated a 20-min incubation period for the phage, with an optimal multiplicity of infection (MOI) of 0.1. Moreover, StAP1 exhibited stability across a wide range of temperatures and pH levels. Further investigation of its broad-spectrum characteristics confirmed its ability to effectively infect all staphylococcal cassette chromosomal mec (SCCmec) types found in MRSA strains, notably displaying a remarkable lysis rate of 76.7% against the prevalent ST239 strain in China. In vivo studies show cased significant efficacy of the StAP1 phage against MRSA infection. Discussion Overall, StAP1 phage presents a broad infection spectrum and exhibits strong lytic effects on various MRSA strains, highlighting its tremendous potential as a powerful tool for MRSA infection treatment.
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Affiliation(s)
- Yuwen Lu
- Department of Laboratory Medicine, Daping Hospital, Army Medical University, Chongqing, China
- State Key Lab of Trauma, Burn and Combined Injury, Medical Center of Trauma and War Injury, Daping Hospital, Army Medical University, Chongqing, China
| | - Yifei Lu
- State Key Lab of Trauma, Burn and Combined Injury, Chongqing Key Laboratory for Disease Proteomics, Institute of Burn Research, Southwest Hospital, Army Medical University, Chongqing, China
| | - Baobao Li
- General Hospital of Eastern Theater Command, PLA, Nanjing, China
| | - Jiazhen Liu
- Department of Laboratory Medicine, Daping Hospital, Army Medical University, Chongqing, China
| | - Lixin Wang
- Department of Laboratory Medicine, Daping Hospital, Army Medical University, Chongqing, China
| | - Lianyang Zhang
- State Key Lab of Trauma, Burn and Combined Injury, Medical Center of Trauma and War Injury, Daping Hospital, Army Medical University, Chongqing, China
| | - Yang Li
- State Key Lab of Trauma, Burn and Combined Injury, Medical Center of Trauma and War Injury, Daping Hospital, Army Medical University, Chongqing, China
| | - Qiu Zhong
- Department of Laboratory Medicine, Daping Hospital, Army Medical University, Chongqing, China
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Kondo K, Nakano S, Hisatsune J, Sugawara Y, Kataoka M, Kayama S, Sugai M, Kawano M. Characterization of 29 newly isolated bacteriophages as a potential therapeutic agent against IMP-6-producing Klebsiella pneumoniae from clinical specimens. Microbiol Spectr 2023; 11:e0476122. [PMID: 37724861 PMCID: PMC10581060 DOI: 10.1128/spectrum.04761-22] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2022] [Accepted: 07/12/2023] [Indexed: 09/21/2023] Open
Abstract
Carbapenemase-producing Enterobacteriaceae (CPE) are one of the most detrimental species of antibiotic-resistant bacteria globally. Phage therapy has emerged as an effective strategy for the treatment of CPE infections. In western Japan, the rise of Klebsiella pneumoniae strains harboring the pKPI-6 plasmid encoding bla IMP-6 is of increasing concern. To address this challenge, we isolated 29 phages from Japanese sewage, specifically targeting 31 K. pneumoniae strains and one Escherichia coli strain harboring the pKPI-6 plasmid. Electron microscopy analysis revealed that among the 29 isolated phages, 21 (72.4%), 5 (17.2%), and 3 (10.3%) phages belonged to myovirus, siphovirus, and podovirus morphotypes, respectively. Host range analysis showed that 18 Slopekvirus strains within the isolated phages infected 25-26 K. pneumoniae strains, indicating that most of the isolated phages have a broad host range. Notably, K. pneumoniae strain Kp21 was exclusively susceptible to phage øKp_21, whereas Kp22 exhibited susceptibility to over 20 phages. Upon administering a phage cocktail composed of 10 phages, we observed delayed emergence of phage-resistant bacteria in Kp21 but not in Kp22. Intriguingly, phage-resistant Kp21 exhibited heightened sensitivity to other bacteriophages, indicating a "trade-off" for resistance to phage øKp_21. Our proposed phage set has an adequate number of phages to combat the K. pneumoniae strain prevalent in Japan, underscoring the potential of a well-designed phage cocktail in mitigating the occurrence of phage-resistant bacteria. IMPORTANCE The emergence of Klebsiella pneumoniae harboring the bla IMP-6 plasmid poses an escalating threat in Japan. In this study, we found 29 newly isolated bacteriophages that infect K. pneumoniae strains carrying the pKPI-6 plasmid from clinical settings in western Japan. Our phages exhibited a broad host range. We applied a phage cocktail treatment composed of 10 phages against two host strains, Kp21 and Kp22, which displayed varying phage susceptibility patterns. Although the phage cocktail delayed the emergence of phage-resistant Kp21, it was unable to hinder the emergence of phage-resistant Kp22. Moreover, the phage-resistant Kp21 became sensitive to other phages that were originally non-infective to the wild-type Kp21 strains. Our study highlights the potential of a well-tailored phage cocktail in reducing the occurrence of phage-resistant bacteria.
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Affiliation(s)
- Kohei Kondo
- Antimicrobial Resistance Research Center, National Institute of Infectious Diseases, Higashimurayama, Tokyo, Japan
| | - Satoshi Nakano
- Antimicrobial Resistance Research Center, National Institute of Infectious Diseases, Higashimurayama, Tokyo, Japan
| | - Junzo Hisatsune
- Antimicrobial Resistance Research Center, National Institute of Infectious Diseases, Higashimurayama, Tokyo, Japan
| | - Yo Sugawara
- Antimicrobial Resistance Research Center, National Institute of Infectious Diseases, Higashimurayama, Tokyo, Japan
| | - Michiyo Kataoka
- Department of Pathology, National Institute of Infectious Diseases, Toyama, Shinjuku-ku, Tokyo, Japan
| | - Shizuo Kayama
- Antimicrobial Resistance Research Center, National Institute of Infectious Diseases, Higashimurayama, Tokyo, Japan
| | - Motoyuki Sugai
- Antimicrobial Resistance Research Center, National Institute of Infectious Diseases, Higashimurayama, Tokyo, Japan
| | - Mitsuoki Kawano
- Department of Nutritional Sciences, Nakamura Gakuen University, Jonan-Ku, Fukuoka, Japan
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Zhou W, Wen H, Hao G, Zhang YS, Yang J, Gao L, Zhu G, Yang ZQ, Xu X. Surface engineering of magnetic peroxidase mimic using bacteriophage for high-sensitivity/specificity colorimetric determination of Staphylococcus aureus in food. Food Chem 2023; 426:136611. [PMID: 37356237 DOI: 10.1016/j.foodchem.2023.136611] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2023] [Revised: 05/28/2023] [Accepted: 06/10/2023] [Indexed: 06/27/2023]
Abstract
Herein, we proposed surface engineering of magnetic peroxidase mimic using bacteriophage by electrostatic interaction to prepare bacteriophage SapYZU15 modified Fe3O4 (SapYZU15@Fe3O4) for colorimetric determination of S. aureus in food. SapYZU15@Fe3O4 exhibits peroxidase-like activity, catalyzing 3,3',5,5'-tetramethylbenzidine (TMB) chromogenic reaction. After introducing S. aureus, peroxidase-like activity of SapYZU15@Fe3O4 was specifically inhibited, resulting in deceleration of TMB chromogenic reaction. This phenomenon benefits from the presence of unique tail protein gene in the bacteriophage SapYZU15 genome, leading to a specific biological interaction between S. aureus and SapYZU15. On basis of this principle, SapYZU15@Fe3O4 can be employed for colorimetric determination of S. aureus with a limiting detection (LOD), calculated as low as 1.2 × 102 CFU mL-1. With this proposed method, colorimetric detection of S. aureus in food was successfully achieved. This portends that surface engineering of nanozymes using bacteriophage has great potential in the field of colorimetric detection of pathogenic bacterium in food.
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Affiliation(s)
- Wenyuan Zhou
- School of Food Science and Engineering, Yangzhou University, Yangzhou 225127, Jiangsu, China; College of Veterinary Medicine, Yangzhou University, Yangzhou, Jiangsu 225009, China
| | - Hua Wen
- School of Food Science and Engineering, Yangzhou University, Yangzhou 225127, Jiangsu, China
| | - Guijie Hao
- Key Laboratory of Healthy Freshwater Aquaculture, Ministry of Agriculture and Rural Affairs, Key Laboratory of Fish Health and Nutrition of Zhejiang Province, Huzhou Key Laboratory of Aquatic Product Quality Improvement and Processing Technology, Zhejiang Institute of Freshwater Fisheries, Huzhou 313001, Zhejiang, China
| | - Yuan-Song Zhang
- School of Food Science and Engineering, Yangzhou University, Yangzhou 225127, Jiangsu, China
| | - Juanli Yang
- School of Food Science and Engineering, Yangzhou University, Yangzhou 225127, Jiangsu, China
| | - Lu Gao
- School of Food Science and Engineering, Yangzhou University, Yangzhou 225127, Jiangsu, China
| | - Guoqiang Zhu
- College of Veterinary Medicine, Yangzhou University, Yangzhou, Jiangsu 225009, China
| | - Zhen-Quan Yang
- School of Food Science and Engineering, Yangzhou University, Yangzhou 225127, Jiangsu, China.
| | - Xuechao Xu
- School of Food Science and Engineering, Yangzhou University, Yangzhou 225127, Jiangsu, China.
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Zhou WY, Wen H, Li YJ, Gao YJ, Zheng XF, Li HX, Zhu GQ, Zhang ZW, Yang ZQ. WGS analysis of two Staphylococcus aureus bacteriophages from sewage in China provides insights into the genetic feature of highly efficient lytic phages. Microbiol Res 2023; 271:127369. [PMID: 36996644 DOI: 10.1016/j.micres.2023.127369] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2022] [Revised: 03/19/2023] [Accepted: 03/21/2023] [Indexed: 03/30/2023]
Abstract
The study of bacteriophages is experiencing a resurgence with the increasing development of antimicrobial resistance in Staphylococcus aureus. Nonetheless, the genetic features of highly efficient lytic S. aureus phage remain to be explored. In this study, two lytic S. aureus phages, SapYZU11 and SapYZU15, were isolated from sewage samples from Yangzhou, China. The phage morphology, one-step growth, host spectrum and lytic activity of these phages were examined, and their whole-genome sequences were analysed and compared with 280 published genomes of staphylococcal phages. The structural organisation and genetic contents of SapYZU11 and SapYZU15 were investigated. The Podoviridae phage SapYZU11 and Herelleviridae phage SapYZU15 effectively lysed all of the 53 S. aureus strains isolated from various sources. However, SapYZU15 exhibited a shorter latent period, larger burst size and stronger bactericidal ability with an anti-bacterial rate of approximately 99.9999% for 24 h. Phylogenetic analysis revealed that Herelleviridae phages formed the most ancestral clades and the S. aureus Podoviridae phages were clustered in the staphylococcal Siphoviridae phage clade. Moreover, phages in different morphology families contain distinct types of genes associated with host cell lysis, DNA packaging and lysogeny. Notably, SapYZU15 harboured 13 DNA metabolism-related genes, 5 lysin genes, 1 holin gene and 1 DNA packaging gene. The data suggest that S. aureus Podoviridae and Siphoviridae phages originated from staphylococcal Herelleviridae phages, and the module exchange of S. aureus phages occurred in the same morphology family. Moreover, the extraordinary lytic capacity of SapYZU15 was likely due to the presence of specific genes associated with DNA replication, DNA packaging and the lytic cycle.
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Affiliation(s)
- Wen-Yuan Zhou
- College of Food Science and Engineering, Yangzhou University, Yangzhou, Jiangsu 225001, China; College of Veterinary Medicine, Yangzhou University, Yangzhou, Jiangsu 225001, China
| | - Hua Wen
- College of Food Science and Engineering, Yangzhou University, Yangzhou, Jiangsu 225001, China
| | - Ya-Jie Li
- College of Food Science and Engineering, Yangzhou University, Yangzhou, Jiangsu 225001, China
| | - Ya-Jun Gao
- College of Food Science and Engineering, Yangzhou University, Yangzhou, Jiangsu 225001, China
| | - Xiang-Feng Zheng
- College of Food Science and Engineering, Yangzhou University, Yangzhou, Jiangsu 225001, China
| | - Hua-Xiang Li
- College of Food Science and Engineering, Yangzhou University, Yangzhou, Jiangsu 225001, China
| | - Guo-Qiang Zhu
- College of Veterinary Medicine, Yangzhou University, Yangzhou, Jiangsu 225001, China
| | - Zhen-Wen Zhang
- Medical College, Yangzhou University, Yangzhou, Jiangsu 225001, China
| | - Zhen-Quan Yang
- College of Food Science and Engineering, Yangzhou University, Yangzhou, Jiangsu 225001, China.
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Boyer M, Wisniewski-Dyé F, Combrisson J, Bally R, Duponnois R, Costechareyre D. Nettle manure: an unsuspected source of bacteriophages active against various phytopathogenic bacteria. Arch Virol 2022; 167:1099-1110. [DOI: 10.1007/s00705-022-05391-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2021] [Accepted: 01/05/2022] [Indexed: 11/29/2022]
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