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Zhou L, Yang C, Zhang X, Yao J, Chen L, Tu Y, Li X. Characterization of a novel Tn6485h transposon carrying both blaIMP-45 and blaAFM-1 integrated into the IncP-2 plasmid in a carbapenem-resistant Pseudomonas aeruginosa. J Glob Antimicrob Resist 2023; 35:307-313. [PMID: 37879457 DOI: 10.1016/j.jgar.2023.10.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2023] [Revised: 09/21/2023] [Accepted: 10/14/2023] [Indexed: 10/27/2023] Open
Abstract
OBJECTIVES To characterize a carbapenem-resistant Pseudomonas aeruginosa (CRPA) with an IncP-2 plasmid containing a novel transposon, Tn6485h, which carries both blaIMP-45 and blaAFM-1. METHODS Antimicrobial susceptibility testing and filter mating experiment were performed on PA942. The stability of the plasmid carrying both blaIMP-45 and blaAFM-1 was carried out. We determined the growth rate of the transconjugant to investigate fitness cost. Additionally, whole-genome sequencing and genomic analysis were performed on PA942. RESULTS PA942 strain was resistant to most antibiotics except for ciprofloxacin and colistin. Bioinformatics analysis confirmed that PA942 contains an IncP-2 plasmid with a novel transposon Tn6485h carrying both blaIMP-45 and blaAFM-1. The plasmid pPA942-IMP45 can be transferred into recipient bacteria PAO1Rif with an efficiency of 2.2 × 10-7 and the transconjugant PAO1Rif/ pPA942-IMP45 can be stably inherited for 10 generations in the absence of antibiotics. CONCLUSION We report a carbapenem-resistant P. aeruginosa strain with an IncP-2 plasmid containing a novel transposon, Tn6485h, which carries both blaIMP-45 and blaAFM-1. The IncP-2 plasmid and transposon Tn6485h may contribute to the spread of MBL genes. Therefore, effective measures to prevent the spread of these plasmids should be taken.
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Affiliation(s)
- Longjie Zhou
- Centre of Laboratory Medicine, Department of Clinical Laboratory, Zhejiang Provincial People's Hospital, People's Hospital of Hangzhou Medical College, Hangzhou, Zhejiang, China
| | - Chuanxin Yang
- Department of Laboratory Medicine, Affiliated Sixth People's Hospital South Campus, Shanghai Jiaotong University, Shanghai, China
| | - Xiaofan Zhang
- Centre of Laboratory Medicine, Department of Clinical Laboratory, Zhejiang Provincial People's Hospital, People's Hospital of Hangzhou Medical College, Hangzhou, Zhejiang, China
| | - Jiayao Yao
- Centre of Laboratory Medicine, Department of Clinical Laboratory, Zhejiang Provincial People's Hospital, People's Hospital of Hangzhou Medical College, Hangzhou, Zhejiang, China
| | - Lingxia Chen
- Centre of Laboratory Medicine, Department of Clinical Laboratory, Zhejiang Provincial People's Hospital, People's Hospital of Hangzhou Medical College, Hangzhou, Zhejiang, China
| | - Yuexing Tu
- Department of Critical Care Medicine, Tongde Hospital of Zhejiang Province, Hangzhou, Zhejiang, China.
| | - Xi Li
- Centre of Laboratory Medicine, Department of Clinical Laboratory, Zhejiang Provincial People's Hospital, People's Hospital of Hangzhou Medical College, Hangzhou, Zhejiang, China.
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Zhang P, Wu W, Wang N, Feng H, Wang J, Wang F, Zhang Y, Chen H, Yang Q, Jiang Y, Qu T. Pseudomonas aeruginosa High-Risk Sequence Type 463 Co-Producing KPC-2 and AFM-1 Carbapenemases, China, 2020-2022. Emerg Infect Dis 2023; 29:2136-2140. [PMID: 37735755 PMCID: PMC10521588 DOI: 10.3201/eid2910.230509] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/23/2023] Open
Abstract
We report the clonal spread and evolution of high-risk Pseudomonas aeruginosa sequence type 463 co-producing KPC-2 and AFM-1 carbapenemases isolated from hospital patients in China during 2020-2022. Those strains pose a substantial public health threat and surveillance and stricter infection-control measures are essential to prevent further infections.
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Affiliation(s)
| | | | - Nanfei Wang
- The First Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, China (P. Zhang, W. Wu, N. Wang, H. Feng, J. Wang, F. Wang, Y. Zhang, H. Chen, Q. Yang, T. Qu)
- Zhejiang University School of Medicine Sir Run Run Shaw Hospital, Hangzhou (Y. Jiang)
- Key Laboratory of Microbial Technology and Bioinformatics of Zhejiang Province, Hangzhou (Y. Jiang)
| | - Haiting Feng
- The First Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, China (P. Zhang, W. Wu, N. Wang, H. Feng, J. Wang, F. Wang, Y. Zhang, H. Chen, Q. Yang, T. Qu)
- Zhejiang University School of Medicine Sir Run Run Shaw Hospital, Hangzhou (Y. Jiang)
- Key Laboratory of Microbial Technology and Bioinformatics of Zhejiang Province, Hangzhou (Y. Jiang)
| | - Jie Wang
- The First Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, China (P. Zhang, W. Wu, N. Wang, H. Feng, J. Wang, F. Wang, Y. Zhang, H. Chen, Q. Yang, T. Qu)
- Zhejiang University School of Medicine Sir Run Run Shaw Hospital, Hangzhou (Y. Jiang)
- Key Laboratory of Microbial Technology and Bioinformatics of Zhejiang Province, Hangzhou (Y. Jiang)
| | - Fang Wang
- The First Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, China (P. Zhang, W. Wu, N. Wang, H. Feng, J. Wang, F. Wang, Y. Zhang, H. Chen, Q. Yang, T. Qu)
- Zhejiang University School of Medicine Sir Run Run Shaw Hospital, Hangzhou (Y. Jiang)
- Key Laboratory of Microbial Technology and Bioinformatics of Zhejiang Province, Hangzhou (Y. Jiang)
| | - Yan Zhang
- The First Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, China (P. Zhang, W. Wu, N. Wang, H. Feng, J. Wang, F. Wang, Y. Zhang, H. Chen, Q. Yang, T. Qu)
- Zhejiang University School of Medicine Sir Run Run Shaw Hospital, Hangzhou (Y. Jiang)
- Key Laboratory of Microbial Technology and Bioinformatics of Zhejiang Province, Hangzhou (Y. Jiang)
| | - Hongchao Chen
- The First Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, China (P. Zhang, W. Wu, N. Wang, H. Feng, J. Wang, F. Wang, Y. Zhang, H. Chen, Q. Yang, T. Qu)
- Zhejiang University School of Medicine Sir Run Run Shaw Hospital, Hangzhou (Y. Jiang)
- Key Laboratory of Microbial Technology and Bioinformatics of Zhejiang Province, Hangzhou (Y. Jiang)
| | - Qing Yang
- The First Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, China (P. Zhang, W. Wu, N. Wang, H. Feng, J. Wang, F. Wang, Y. Zhang, H. Chen, Q. Yang, T. Qu)
- Zhejiang University School of Medicine Sir Run Run Shaw Hospital, Hangzhou (Y. Jiang)
- Key Laboratory of Microbial Technology and Bioinformatics of Zhejiang Province, Hangzhou (Y. Jiang)
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Zhang P, Wang J, Shi W, Wang N, Jiang Y, Chen H, Yang Q, Qu T. In vivo acquisition of bla KPC-2 with low biological cost in bla AFM-1-harboring ST463 hypervirulent Pseudomonas aeruginosa from a patient with hematologic malignancy. J Glob Antimicrob Resist 2022; 31:189-195. [PMID: 36182079 DOI: 10.1016/j.jgar.2022.09.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2022] [Revised: 09/13/2022] [Accepted: 09/13/2022] [Indexed: 12/30/2022] Open
Abstract
OBJECTIVES Klebsiella pneumoniae carbapenemase (KPC)-producing sequence type (ST) 463 Pseudomonas aeruginosa are increasingly prevalent in China. This study aims to investigate how blaKPC-2 is acquired in ST463 P. aeruginosa during antimicrobial therapy. METHODS Two extensively drug-resistant P. aeruginosa strains, B1122 and U1121, were respectively isolated from blood and urine of a patient during carbapenem therapy. Whole-genome sequences were obtained, and minimum inhibitory concentrations (MICs) were determined. Plasmid transferability and stability were examined. Bacterial growth kinetics, biofilm formation, and virulence level was assessed. RESULTS U1121 and B1122 were only susceptible to amikacin and intermediately susceptible to colistin. They were isogenic ST463 P. aeruginosa strains and shared the same chromosome-encoded resistance genes, including blaAFM-1. This is the first report of chromosomal integration of blaAFM-1 in P. aeruginosa mediated by ISCR29. pU1121 and pB1122, which shared almost identical backbone, were the sole plasmids in U1121 and B1122, respectively, differing by an insertion region containing two copies of blaKPC-2 genes observed on pU1121. Sequence alignment revealed that pU1121 might evolve in vivo from pB1122 via IS26-mediated continuous genetic rearrangement in response to selective challenge from carbapenem. pU1121 was not self-transmissible and could be stably maintained in the host in the absence of antibiotic. Both U1121 and B1122 were hypervirulent, and no differences on virulence were recorded between them. However, U1121 exhibited significant impaired growth in comparison with B1122. CONCLUSION ST463 P. aeruginosa can capture blaKPC-2 through horizontal transfer of insertion sequence under antibiotic selection pressure, which does decrease the fitness but does not impair the virulence of the ancestor.
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Affiliation(s)
- Piaopiao Zhang
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, National Medical Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China; Research Units of Infectious disease and Microecology, Chinese Academy of Medical Sciences
| | - Jie Wang
- Respiratory Department, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Weixiao Shi
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, National Medical Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China; Research Units of Infectious disease and Microecology, Chinese Academy of Medical Sciences
| | - Nanfei Wang
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, National Medical Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China; Research Units of Infectious disease and Microecology, Chinese Academy of Medical Sciences
| | - Yan Jiang
- Department of Infectious Diseases, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Hongchao Chen
- Department of Laboratory Medicine, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Qing Yang
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, National Medical Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China; Research Units of Infectious disease and Microecology, Chinese Academy of Medical Sciences; Department of Laboratory Medicine, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China.
| | - Tingting Qu
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, National Medical Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China; Research Units of Infectious disease and Microecology, Chinese Academy of Medical Sciences.
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Lin X, Lu J, Qian C, Lin H, Li Q, Zhang X, Liu H, Sun Z, Zhou D, Lu W, Zhu M, Zhang H, Xu T, Li K, Bao Q, Lin L. Molecular and Functional Characterization of a Novel Plasmid-Borne bla NDM-Like Gene, bla AFM-1, in a Clinical Strain of Aeromonas hydrophila. Infect Drug Resist 2021; 14:1613-1622. [PMID: 33911885 PMCID: PMC8075316 DOI: 10.2147/idr.s297419] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2020] [Accepted: 03/31/2021] [Indexed: 01/21/2023] Open
Abstract
Purpose An increasing frequency of antibiotic resistance has been observed in both clinical and environmental Aeromonas hydrophila isolates in recent years. However, there are still very few in-depth studies regarding the role of plasmids in the antibiotic resistance of A. hydrophila. Hence, we investigated the molecular and functional characterization of a multidrug-resistant plasmid encoding an NDM-like metallo-β-lactamase, AFM-1, in the clinical A. hydrophila isolate SS332. Methods The minimum inhibitory concentrations (MICs) of 24 antibiotics against A. hydrophila SS332 were measured by the agar dilution method. The genome of A. hydrophila SS332 was sequenced with PacBio and Illumina platforms. Six plasmid-borne antimicrobial resistance genes were chosen for cloning, including blaAFM-1, blaOXA-1, msr(E), mph(E), aac(6ʹ)-Ib10, and aph(3ʹ)-Ia. Phylogenetic analysis, amino acid sequence alignment, and comparative genomic analysis were performed to elucidate the active site requirements and genetic context of the blaAFM-1 gene. Results A. hydrophila SS332 showed high levels of resistance to 15 antibiotics, especially those with MIC levels at or above 1024 μg/mL, including ampicillin, cefazolin, ceftriaxone, aztreonam, spectinomycin, and roxithromycin. Six plasmid-borne resistance genes from A. hydrophila were verified to be functional in E. coli DH5α. AFM-1 shared 86% amino acid identity with NDM-1 and showed resistance to ampicillin, cefazolin, cefoxitin, and ceftazidime. In addition, the blaAFM-1 gene was associated with three different novel ISCR19-like elements, designated ISCR19-1, ISCR19-2 and ∆ISCR19-3, which may be involved in the acquisition and mobilization of the blaAFM-1 gene. Conclusion Our investigation showed that plasmid-borne resistance genes can contribute to antibiotic resistance in A. hydrophila SS332. A novel blaNDM-like gene, blaAFM-1, was verified to be functional and associated with novel ISCR19-like elements. This fact indicated the risk of spread of blaAFM-1 genes and ISCR19-like elements.
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Affiliation(s)
- Xi Lin
- Key Laboratory of Medical Genetics of Zhejiang Province, Key Laboratory of Laboratory Medicine, Ministry of Education of China, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, 325035, People's Republic of China.,Institute of Biomedical Informatics, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, 325035, People's Republic of China
| | - Junwan Lu
- Key Laboratory of Medical Genetics of Zhejiang Province, Key Laboratory of Laboratory Medicine, Ministry of Education of China, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, 325035, People's Republic of China.,Institute of Biomedical Informatics, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, 325035, People's Republic of China
| | - Changrui Qian
- Key Laboratory of Medical Genetics of Zhejiang Province, Key Laboratory of Laboratory Medicine, Ministry of Education of China, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, 325035, People's Republic of China.,Institute of Biomedical Informatics, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, 325035, People's Republic of China
| | - Hailong Lin
- Key Laboratory of Medical Genetics of Zhejiang Province, Key Laboratory of Laboratory Medicine, Ministry of Education of China, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, 325035, People's Republic of China.,Institute of Biomedical Informatics, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, 325035, People's Republic of China.,The Second Affiliated Hospital and Children's Hospital, Wenzhou Medical University, Wenzhou, 325027, People's Republic of China
| | - Qiaoling Li
- Key Laboratory of Medical Genetics of Zhejiang Province, Key Laboratory of Laboratory Medicine, Ministry of Education of China, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, 325035, People's Republic of China.,Institute of Biomedical Informatics, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, 325035, People's Republic of China.,The Second Affiliated Hospital and Children's Hospital, Wenzhou Medical University, Wenzhou, 325027, People's Republic of China
| | - Xueya Zhang
- Key Laboratory of Medical Genetics of Zhejiang Province, Key Laboratory of Laboratory Medicine, Ministry of Education of China, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, 325035, People's Republic of China.,Institute of Biomedical Informatics, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, 325035, People's Republic of China.,The Second Affiliated Hospital and Children's Hospital, Wenzhou Medical University, Wenzhou, 325027, People's Republic of China
| | - Hongmao Liu
- Key Laboratory of Medical Genetics of Zhejiang Province, Key Laboratory of Laboratory Medicine, Ministry of Education of China, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, 325035, People's Republic of China.,Institute of Biomedical Informatics, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, 325035, People's Republic of China.,The Second Affiliated Hospital and Children's Hospital, Wenzhou Medical University, Wenzhou, 325027, People's Republic of China
| | - Zhewei Sun
- Key Laboratory of Medical Genetics of Zhejiang Province, Key Laboratory of Laboratory Medicine, Ministry of Education of China, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, 325035, People's Republic of China.,Institute of Biomedical Informatics, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, 325035, People's Republic of China
| | - Danying Zhou
- Key Laboratory of Medical Genetics of Zhejiang Province, Key Laboratory of Laboratory Medicine, Ministry of Education of China, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, 325035, People's Republic of China.,Institute of Biomedical Informatics, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, 325035, People's Republic of China
| | - Wei Lu
- Key Laboratory of Medical Genetics of Zhejiang Province, Key Laboratory of Laboratory Medicine, Ministry of Education of China, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, 325035, People's Republic of China.,Institute of Biomedical Informatics, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, 325035, People's Republic of China
| | - Mei Zhu
- Department of Clinical Laboratory, Zhejiang Hospital, Hangzhou, Zhejiang, 310013, People's Republic of China
| | - Hailin Zhang
- Institute of Biomedical Informatics, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, 325035, People's Republic of China.,The Second Affiliated Hospital and Children's Hospital, Wenzhou Medical University, Wenzhou, 325027, People's Republic of China
| | - Teng Xu
- Institute of Translational Medicine, Baotou Central Hospital, Baotou, 014040, People's Republic of China
| | - Kewei Li
- Key Laboratory of Medical Genetics of Zhejiang Province, Key Laboratory of Laboratory Medicine, Ministry of Education of China, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, 325035, People's Republic of China.,Institute of Biomedical Informatics, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, 325035, People's Republic of China
| | - Qiyu Bao
- Key Laboratory of Medical Genetics of Zhejiang Province, Key Laboratory of Laboratory Medicine, Ministry of Education of China, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, 325035, People's Republic of China.,Institute of Biomedical Informatics, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, 325035, People's Republic of China.,The Second Affiliated Hospital and Children's Hospital, Wenzhou Medical University, Wenzhou, 325027, People's Republic of China
| | - Li Lin
- Institute of Biomedical Informatics, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, 325035, People's Republic of China.,The Second Affiliated Hospital and Children's Hospital, Wenzhou Medical University, Wenzhou, 325027, People's Republic of China
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