1
|
Yang L, Zhang T, Li L, Zheng C, Tan D, Wu N, Wang M, Zhu T. Characterization of Pseudomonas aeruginosa Bacteriophage L5 Which Requires Type IV Pili for Infection. Front Microbiol 2022; 13:907958. [PMID: 35847060 PMCID: PMC9284122 DOI: 10.3389/fmicb.2022.907958] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2022] [Accepted: 06/13/2022] [Indexed: 11/23/2022] Open
Abstract
Pseudomonas aeruginosa is a common opportunistic human pathogen. With the emergence of multidrug-resistant (MDR) clinical infection of P. aeruginosa, phage therapy has received renewed attention in treating P. aeruginosa infections. Moreover, a detailed understanding of the host receptor of lytic phage is crucial for selecting proper phages for therapy. Here, we describe the characterization of the P. aeruginosa bacteriophage L5 with a double-stranded DNA genome of 42,925 bp. The genomic characteristics indicate that L5 is a lytic bacteriophage belonging to the subfamily Autographivirinae. In addition, the phage receptors for L5 were also identified as type IV pili, because the mutation of pilZ, which is involved in pili synthesis, resists phage infection, while the complementation of pilZ restored its phage sensitivity. This research reveals that L5 is a potential phage therapy candidate for the treatment of P. aeruginosa infection.
Collapse
Affiliation(s)
- Lan Yang
- Shanghai Institute of Phage, Shanghai Public Health Clinical Center, Fudan University, Shanghai, China
| | - Tingting Zhang
- Shanghai Institute of Phage, Shanghai Public Health Clinical Center, Fudan University, Shanghai, China
- Key Laboratory of Infectious Immune and Antibody Engineering of Guizhou Province, School of Biology and Engineering, Guizhou Medical University, Guiyang, China
| | - Linlin Li
- Shanghai Institute of Phage, Shanghai Public Health Clinical Center, Fudan University, Shanghai, China
| | - Chao Zheng
- Department of Critical Care Medicine, Jiangbei District People’s Hospital, Chongqing, China
| | - Demeng Tan
- Shanghai Institute of Phage, Shanghai Public Health Clinical Center, Fudan University, Shanghai, China
| | - Nannan Wu
- Shanghai Institute of Phage, Shanghai Public Health Clinical Center, Fudan University, Shanghai, China
- CreatiPhage Biotechnology Co., Ltd, Shanghai, China
| | - Mingyang Wang
- Department of Critical Care Medicine, Jiangbei District People’s Hospital, Chongqing, China
- *Correspondence: Mingyang Wang,
| | - Tongyu Zhu
- Shanghai Institute of Phage, Shanghai Public Health Clinical Center, Fudan University, Shanghai, China
- Shanghai Medical College, Fudan University, Shanghai, China
- Tongyu Zhu,
| |
Collapse
|
2
|
Henrici De Angelis L, Poerio N, Di Pilato V, De Santis F, Antonelli A, Thaller MC, Fraziano M, Rossolini GM, D’Andrea MM. Phage Resistance Is Associated with Decreased Virulence in KPC-Producing Klebsiella pneumoniae of the Clonal Group 258 Clade II Lineage. Microorganisms 2021; 9:microorganisms9040762. [PMID: 33917365 PMCID: PMC8067426 DOI: 10.3390/microorganisms9040762] [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: 03/05/2021] [Revised: 03/31/2021] [Accepted: 04/02/2021] [Indexed: 11/16/2022] Open
Abstract
Phage therapy is now reconsidered with interest in the treatment of bacterial infections. A major piece of information for this application is the definition of the molecular targets exploited by phages to infect bacteria. Here, the genetic basis of resistance to the lytic phage φBO1E by its susceptible host Klebsiella pneumoniae KKBO-1 has been investigated. KKBO-1 phage-resistant mutants were obtained by infection at high multiplicity. One mutant, designated BO-FR-1, was selected for subsequent experiments, including virulence assessment in a Galleria mellonella infection model and characterization by whole-genome sequencing. Infection with BO-FR-1 was associated with a significantly lower mortality when compared to that of the parental strain. The BO-FR-1 genome differed from KKBO-1 by a single nonsense mutation into the wbaP gene, which encodes a glycosyltransferase involved in the first step of the biosynthesis of the capsular polysaccharide (CPS). Phage susceptibility was restored when BO-FR-1 was complemented with the constitutive wbaP gene. Our results demonstrated that φBO1E infects KKBO-1 targeting the bacterial CPS. Interestingly, BO-FR-1 was less virulent than the parental strain, suggesting that in the context of the interplay among phage, bacterial pathogen and host, the emergence of phage resistance may be beneficial for the host.
Collapse
Affiliation(s)
- Lucia Henrici De Angelis
- Department of Medical Biotechnologies, University of Siena, Viale Mario Bracci, 16, 53100 Siena, Italy;
| | - Noemi Poerio
- Department of Biology, University of Rome “Tor Vergata”, Via della Ricerca Scientifica snc, 00133 Rome, Italy; (N.P.); (F.D.S.); (M.C.T.); (M.F.)
| | - Vincenzo Di Pilato
- Department of Surgical Sciences and Integrated Diagnostics (DISC), University of Genoa, Via Benedetto XV, 6, 16126 Genoa, Italy;
| | - Federica De Santis
- Department of Biology, University of Rome “Tor Vergata”, Via della Ricerca Scientifica snc, 00133 Rome, Italy; (N.P.); (F.D.S.); (M.C.T.); (M.F.)
| | - Alberto Antonelli
- Department of Experimental and Clinical Medicine, University of Florence, Largo Brambilla, 3, 50121 Florence, Italy; (A.A.); (G.M.R.)
- Microbiology and Virology Unit, Florence Careggi University Hospital, Largo Brambilla, 3, 50121 Florence, Italy
| | - Maria Cristina Thaller
- Department of Biology, University of Rome “Tor Vergata”, Via della Ricerca Scientifica snc, 00133 Rome, Italy; (N.P.); (F.D.S.); (M.C.T.); (M.F.)
| | - Maurizio Fraziano
- Department of Biology, University of Rome “Tor Vergata”, Via della Ricerca Scientifica snc, 00133 Rome, Italy; (N.P.); (F.D.S.); (M.C.T.); (M.F.)
| | - Gian Maria Rossolini
- Department of Experimental and Clinical Medicine, University of Florence, Largo Brambilla, 3, 50121 Florence, Italy; (A.A.); (G.M.R.)
- Microbiology and Virology Unit, Florence Careggi University Hospital, Largo Brambilla, 3, 50121 Florence, Italy
| | - Marco Maria D’Andrea
- Department of Biology, University of Rome “Tor Vergata”, Via della Ricerca Scientifica snc, 00133 Rome, Italy; (N.P.); (F.D.S.); (M.C.T.); (M.F.)
- Correspondence:
| |
Collapse
|
3
|
Herridge WP, Shibu P, O’Shea J, Brook TC, Hoyles L. Bacteriophages of Klebsiella spp., their diversity and potential therapeutic uses. J Med Microbiol 2020; 69:176-194. [PMID: 31976857 PMCID: PMC7431098 DOI: 10.1099/jmm.0.001141] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2019] [Accepted: 12/20/2019] [Indexed: 12/16/2022] Open
Abstract
Klebsiella spp. are commensals of the human microbiota, and a leading cause of opportunistic nosocomial infections. The incidence of multidrug resistant (MDR) strains of Klebsiella pneumoniae causing serious infections is increasing, and Klebsiella oxytoca is an emerging pathogen. Alternative strategies to tackle infections caused by these bacteria are required as strains become resistant to last-resort antibiotics such as colistin. Bacteriophages (phages) are viruses that can infect and kill bacteria. They and their gene products are now being considered as alternatives or adjuncts to antimicrobial therapies. Several in vitro and in vivo studies have shown the potential for lytic phages to combat MDR K. pneumoniae infections. Ready access to cheap sequencing technologies has led to a large increase in the number of genomes available for Klebsiella-infecting phages, with these phages being heterogeneous at the whole-genome level. This review summarizes our current knowledge on phages of Klebsiella spp. and highlights technological and biological issues relevant to the development of phage-based therapies targeting these bacteria.
Collapse
Affiliation(s)
- Warren P. Herridge
- Department of Biosciences, Nottingham Trent University, Clifton Lane, Nottingham NG11 8NS, UK
| | - Preetha Shibu
- Life Sciences, University of Westminster, 115 Cavendish Street, London W1W 6UW, UK
| | - Jessica O’Shea
- Department of Biosciences, Nottingham Trent University, Clifton Lane, Nottingham NG11 8NS, UK
| | - Thomas C. Brook
- Life Sciences, University of Westminster, 115 Cavendish Street, London W1W 6UW, UK
| | - Lesley Hoyles
- Department of Biosciences, Nottingham Trent University, Clifton Lane, Nottingham NG11 8NS, UK
| |
Collapse
|
4
|
φBO1E, a newly discovered lytic bacteriophage targeting carbapenemase-producing Klebsiella pneumoniae of the pandemic Clonal Group 258 clade II lineage. Sci Rep 2017; 7:2614. [PMID: 28572684 PMCID: PMC5453958 DOI: 10.1038/s41598-017-02788-9] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2017] [Accepted: 04/13/2017] [Indexed: 01/15/2023] Open
Abstract
The pandemic dissemination of KPC carbapenemase-producing Klebsiella pneumoniae (KPC-KP) represents a major public health problem, given their extensive multidrug resistance profiles and primary role in causing healthcare-associated infections. This phenomenon has largely been contributed by strains of Clonal Group (CG) 258, mostly of clade II, which in some areas represent the majority of KPC-KP isolates. Here we have characterized a newly discovered lytic Podoviridae, named φBO1E, targeting KPC-KP strains of clade II lineage of CG258. Genomic sequencing revealed that φBO1E belongs to the Kp34virus genus (87% nucleotide identity to vB_KpnP_SU552A). ΦBO1E was stable over a broad pH and temperature range, exhibited strict specificity for K. pneumoniae strains of clade II of CG258, and was unable to establish lysogeny. In a Galleria mellonella infection model, φBO1E was able to protect larvae from death following infection with KPC-KP strains of clade II of CG258, including one colistin resistant strain characterized by a hypermucoviscous phenotype. To our best knowledge φBO1E is the first characterized lytic phage targeting K. pneumoniae strains of this pandemic clonal lineage. As such, it could be of potential interest to develop new agents for treatment of KPC-KP infections and for decolonization of subjects chronically colonized by these resistant superbugs.
Collapse
|