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Gao L, Zhang L, Yang J, Ma T, Wang B, Yang H, Lin F, Xu X, Yang ZQ. Immobilization of a broad host range phage on the peroxidase-like Fe-MOF for colorimetric determination of multiple Salmonella enterica strains in food. Mikrochim Acta 2024; 191:331. [PMID: 38744722 DOI: 10.1007/s00604-024-06402-4] [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: 03/27/2024] [Accepted: 05/01/2024] [Indexed: 05/16/2024]
Abstract
A broad host range phage-based nanozyme (Fe-MOF@SalmpYZU47) was prepared for colorimetric detection of multiple Salmonella enterica strains. The isolation of a broad host range phage (SalmpYZU47) capable of infecting multiple S. enterica strains was achieved. Then, it was directly immobilized onto the Fe-MOF to prepare Fe-MOF@SalmpYZU47, exhibiting peroxidase-like activity. The peroxidase-like activity can be specifically inhibited by multiple S. enterica strains, benefiting from the broad host range capture ability of Fe-MOF@SalmpYZU47. Based on it, a colorimetric detection approach was developed for S. enterica in the range from 1.0 × 102 to 1.0 × 108 CFU mL-1, achieving a low limit of detection (LOD) of 11 CFU mL-1. The Fe-MOF@SalmpYZU47 was utilized for detecting S. enterica in authentic food samples, achieving recoveries ranging from 91.88 to 105.34%. Hence, our proposed broad host range phage-based nanozyme exhibits significant potential for application in the colorimetric detection of pathogenic bacteria.
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Affiliation(s)
- Lu Gao
- School of Food Science and Engineering, Yangzhou University, Yangzhou, 225127, Jiangsu, China
| | - Ling 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
| | - Tong Ma
- School of Food Science and Engineering, Yangzhou University, Yangzhou, 225127, Jiangsu, China
| | - Bo Wang
- School of Food Science and Engineering, Yangzhou University, Yangzhou, 225127, Jiangsu, China
| | - Huan Yang
- School of Material Science and Engineering, Yancheng Institute of Technology, Yancheng, 224051, Jiangsu, China
| | - Feng Lin
- 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.
| | - Xuechao Xu
- School of Food Science and Engineering, Yangzhou University, Yangzhou, 225127, Jiangsu, China.
- 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.
| | - Zhen-Quan Yang
- School of Food Science and Engineering, Yangzhou University, Yangzhou, 225127, Jiangsu, China
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Wang Z, Yang X, Wang H, Wang S, Fang R, Li X, Xing J, Wu Q, Li Z, Song N. Characterization and efficacy against carbapenem-resistant Acinetobacter baumannii of a novel Friunavirus phage from sewage. Front Cell Infect Microbiol 2024; 14:1382145. [PMID: 38736748 PMCID: PMC11086170 DOI: 10.3389/fcimb.2024.1382145] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2024] [Accepted: 04/08/2024] [Indexed: 05/14/2024] Open
Abstract
Carbapenem-resistant Acinetobacter baumannii (CRAB) has become a new threat in recent years, owing to its rapidly increasing resistance to antibiotics and new effective therapies are needed to combat this pathogen. Phage therapy is considered to be the most promising alternative for treating CRAB infections. In this study, a novel phage, Ab_WF01, which can lyse clinical CRAB, was isolated and characterized from hospital sewage. The multiplicity of infection, morphology, one-step growth curve, stability, sensitivity, and lytic activity of the phage were also investigated. The genome of phage Ab_WF01 was 41, 317 bp in size with a GC content of 39.12% and encoded 51 open reading frames (ORFs). tRNA, virulence, and antibiotic resistance genes were not detected in the phage genome. Comparative genomic and phylogenetic analyses suggest that phage Ab_WF01 is a novel species of the genus Friunavirus, subfamily Beijerinckvirinae, and family Autographiviridae. The in vivo results showed that phage Ab_WF01 significantly increased the survival rate of CRAB-infected Galleria mellonella (from 0% to 70% at 48 h) and mice (from 0% to 60% for 7 days). Moreover, after day 3 post-infection, phage Ab_WF01 reduced inflammatory response, with strongly ameliorated histological damage and bacterial clearance in infected tissue organs (lungs, liver, and spleen) in mouse CRAB infection model. Taken together, these results show that phage Ab_WF01 holds great promise as a potential alternative agent with excellent stability for against CRAB infections.
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Affiliation(s)
- Zhitao Wang
- Weifang Key Laboratory of Respiratory Tract Pathogens and Drug Therapy, School of Life Science and Technology, Shandong Second Medical University, Weifang, China
| | - Xue Yang
- School of Pharmacy, Shandong Second Medical University, Weifang, China
| | - Hui Wang
- Weifang Key Laboratory of Respiratory Tract Pathogens and Drug Therapy, School of Life Science and Technology, Shandong Second Medical University, Weifang, China
| | - Shuxian Wang
- Weifang Key Laboratory of Respiratory Tract Pathogens and Drug Therapy, School of Life Science and Technology, Shandong Second Medical University, Weifang, China
| | - Ren Fang
- Weifang Key Laboratory of Respiratory Tract Pathogens and Drug Therapy, School of Life Science and Technology, Shandong Second Medical University, Weifang, China
| | - Xiaotian Li
- Weifang Key Laboratory of Respiratory Tract Pathogens and Drug Therapy, School of Life Science and Technology, Shandong Second Medical University, Weifang, China
| | - Jiayin Xing
- Weifang Key Laboratory of Respiratory Tract Pathogens and Drug Therapy, School of Life Science and Technology, Shandong Second Medical University, Weifang, China
| | - Qianqian Wu
- Department of Clinical Laboratory, Affiliated Hospital of Shandong Second Medical University, Weifang, China
| | - Zhaoli Li
- SAFE Pharmaceutical Technology Co. Ltd., Beijing, China
| | - Ningning Song
- Weifang Key Laboratory of Respiratory Tract Pathogens and Drug Therapy, School of Life Science and Technology, Shandong Second Medical University, Weifang, China
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Cevallos-Urena A, Kim JY, Kim BS. Vibrio-infecting bacteriophages and their potential to control biofilm. Food Sci Biotechnol 2023; 32:1719-1727. [PMID: 37780594 PMCID: PMC10533469 DOI: 10.1007/s10068-023-01361-7] [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: 03/21/2023] [Revised: 05/08/2023] [Accepted: 05/29/2023] [Indexed: 10/03/2023] Open
Abstract
The emergence and spread of antibiotic-resistant pathogenic bacteria have necessitated finding new control alternatives. Under these circumstances, lytic bacteriophages offer a viable and promising option. This review focuses on Vibrio-infecting bacteriophages and the characteristics that make them suitable for application in the food and aquaculture industries. Bacteria, particularly Vibrio spp., can produce biofilms under stress conditions. Therefore, this review summarizes several anti-biofilm mechanisms that phages have, such as stimulating the host bacteria to produce biofilm-degrading enzymes, utilizing tail depolymerases, and penetrating matured biofilms through water channels. Additionally, the advantages of bacteriophages over antibiotics, such as a lower probability of developing resistance and the ability to infect dormant cells, are discussed. Finally, this review presents future research prospects related to further utilization of phages in diverse fields.
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Affiliation(s)
- Ana Cevallos-Urena
- Department of Food Science and Biotechnology, Ewha Womans University, Seoul, 03760 Republic of Korea
| | - Jeong Yeon Kim
- Department of Food Science and Biotechnology, Ewha Womans University, Seoul, 03760 Republic of Korea
| | - Byoung Sik Kim
- Department of Food Science and Biotechnology, Ewha Womans University, Seoul, 03760 Republic of Korea
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Lin LC, Tsai YC. Isolation and characterization of a Vibrio owensii phage phi50-12. Sci Rep 2022; 12:16390. [PMID: 36180722 PMCID: PMC9525291 DOI: 10.1038/s41598-022-20831-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Accepted: 09/19/2022] [Indexed: 11/09/2022] Open
Abstract
Vibrio owensii is a widely distributed marine vibrio species that causes acute hepatopancreatic necrosis in the larvae of Panulirus ornatus and Penaeus vannamei, and is also associated with Montipora white syndrome in corals. We characterized V. owensii GRA50-12 as a potent pathogen using phenotypic, biochemical, and zebrafish models. A virulent phage, vB_VowP_phi50-12 (phi50-12), belonging to the N4-like Podoviridae, was isolated from the same habitat as that of V. owensii GRA50-12 and characterized. This phage possesses a unique sequence with no similar hits in the public databases and has a short latent time (30 min), a large burst size (106 PFU/infected cell), and a wide range of pH and temperature stabilities. Moreover, phi50-12 also demonstrated a strong lysis ability against V. owensii GRA50-12. SDS-PAGE revealed at least nine structural proteins, four of which were confirmed using LC–MS/MS analysis. The size of the phi50-12 genome was 68,059 bp, with 38.5% G + C content. A total of 101 ORFs were annotated, with 17 ORFs having closely related counterparts in the N4-like vibrio phage. Genomic sequencing confirmed the absence of antibiotic resistance genes or virulence factors. Comparative studies have shown that phi50-12 has a unique genomic arrangement, except for the well-conserved core regions of the N4-like phages. Phylogenetic analysis demonstrated that it belonged to a group of smaller genomes of N4-like vibrio phages. The therapeutic effect in the zebrafish model suggests that phi50-12 could be a potential candidate for application in the treatment of V. owensii infection or as a biocontrol agent. However, further research must be carried out to confirm the efficacy of phage50-12.
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Affiliation(s)
- Ling-Chun Lin
- Masters Program in Biomedical Sciences, School of Medicine, Tzu Chi University, No. 701, Sec. 3, Zhongyang Rd., Hualien, 97004, Taiwan.
| | - Yu-Chuan Tsai
- Masters Program in Biomedical Sciences, School of Medicine, Tzu Chi University, No. 701, Sec. 3, Zhongyang Rd., Hualien, 97004, Taiwan
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