1
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Navickaite I, Holmes H, Dondi L, Randall L, Fearnley C, Taylor E, Fullick E, Horton R, Williamson S, AbuOun M, Teale C, Anjum MF. Occurrence and characterization of rmtB-harbouring Salmonella and Escherichia coli isolates from a pig farm in the UK. J Antimicrob Chemother 2024; 79:1329-1336. [PMID: 38629139 DOI: 10.1093/jac/dkae102] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2023] [Accepted: 03/20/2024] [Indexed: 06/04/2024] Open
Abstract
OBJECTIVES To characterize and elucidate the spread of amikacin-resistant Enterobacteriaceae isolates from environmental samples on a pig farm in the UK, following the previous identification of index Salmonella isolates harbouring the rmtB gene, a 16S rRNA methylase. METHODS Environmental samples were collected during two visits to a pig farm in the UK. Isolates were recovered using selective media (amikacin 128 mg/L) followed by real-time PCR and WGS to analyse rmtB-carrying Salmonella and Escherichia coli isolates. RESULTS Salmonella and E. coli isolates harbouring the rmtB gene were detected at both farm visits. All Salmonella isolates were found to be monophasic S. enterica serovar Typhimurium variant Copenhagen of ST34. rmtB-harbouring E. coli isolates were found to be one of three STs: ST4089, ST1684 and ST34. Long-read sequencing identified the rmtB gene to be chromosomally located in Salmonella isolates and on IncFII-type plasmids in E. coli isolates. The results showed the rmtB gene to be flanked by IS26 elements and several resistance genes. CONCLUSIONS We report on the occurrence of rmtB-harbouring Enterobacteriaceae on a pig farm in the UK. rmtB confers resistance to multiple aminoglycosides and this work highlights the need for surveillance to assess dissemination and risk.
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Affiliation(s)
| | - Harry Holmes
- Animal and Plant Health Agency, Weybridge, Surrey, UK
| | - Letizia Dondi
- Animal and Plant Health Agency, Weybridge, Surrey, UK
| | - Luke Randall
- Animal and Plant Health Agency, Weybridge, Surrey, UK
| | | | - Emma Taylor
- Animal and Plant Health Agency, Weybridge, Surrey, UK
| | | | - Robert Horton
- Animal and Plant Health Agency, Weybridge, Surrey, UK
| | | | - Manal AbuOun
- Animal and Plant Health Agency, Weybridge, Surrey, UK
| | | | - Muna F Anjum
- Animal and Plant Health Agency, Weybridge, Surrey, UK
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2
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Li G, Li X, Hu J, Pan Y, Ma Z, Zhang L, Xiong W, Zeng D, Zeng Z. Molecular epidemiology and transmission of rmtB-positive Escherichia coli among ducks and environment. Poult Sci 2023; 102:102579. [PMID: 36913759 PMCID: PMC10023955 DOI: 10.1016/j.psj.2023.102579] [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: 11/28/2022] [Revised: 02/03/2023] [Accepted: 02/06/2023] [Indexed: 02/12/2023] Open
Abstract
This study aimed to investigate the transmission and molecular epidemiological characteristics of the rmtB gene in Escherichia coli (E. coli) strains isolated from duck farms in Guangdong Province of China from 2018 to 2021. A total of 164 (19.4%, 164/844) rmtB-positive E. coli strains were recovered from feces, viscera, and environment. We performed antibiotic susceptibility tests, pulsed-field gel electrophoresis (PFGE), and conjugation experiments. We obtained the genetic context of 46 rmtB-carrying E. coli isolates and constructed a phylogenetic tree via whole genome sequencing (WGS) and bioinformatic analysis. The isolation rate of rmtB-carrying E. coli isolates in duck farms increased yearly from 2018 to 2020 but decreased in 2021. All rmtB-harboring E. coli strains were multidrug resistant (MDR), and 99.4% of the strains were resistant to more than 10 drugs. Surprisingly, duck- and environment-associated strains similarly showed high MDR. Conjugation experiments revealed that the rmtB gene horizontally cocarried blaCTX-M and blaTEM gene dissemination via IncFII plasmids. Insertion sequences IS26, ISCR1, and ISCR3 were closely associated with the spread of rmtB-harboring E. coli isolates. WGS analysis indicated that ST48 was the most prevalent sequence type. The results of single nucleotide polymorphism (SNP) differences revealed potential clonal transmission between ducks and the environment. Based on One Health principles, we need to strictly use veterinary antibiotics, monitor the distribution of MDR strains, and evaluate the impact of plasmid-mediated rmtB gene on human, animal, and environmental health.
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Affiliation(s)
- Guihua Li
- Guangdong Provincial Key Laboratory of Veterinary Pharmaceutics Development and Safety Evaluation, College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China; National Risk Assessment Laboratory for Antimicrobial Resistance of Animal Original Bacteria, South China Agricultural University, Guangzhou 510642, China; National Laboratory of Safety Evaluation (Environmental Assessment) of Veterinary Drugs, South China Agricultural University, Guangzhou 510642, China
| | - Xiaoshen Li
- Guangdong Provincial Key Laboratory of Veterinary Pharmaceutics Development and Safety Evaluation, College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China; National Risk Assessment Laboratory for Antimicrobial Resistance of Animal Original Bacteria, South China Agricultural University, Guangzhou 510642, China; National Laboratory of Safety Evaluation (Environmental Assessment) of Veterinary Drugs, South China Agricultural University, Guangzhou 510642, China
| | - Jianxin Hu
- Guangdong Provincial Key Laboratory of Veterinary Pharmaceutics Development and Safety Evaluation, College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China; National Risk Assessment Laboratory for Antimicrobial Resistance of Animal Original Bacteria, South China Agricultural University, Guangzhou 510642, China; National Laboratory of Safety Evaluation (Environmental Assessment) of Veterinary Drugs, South China Agricultural University, Guangzhou 510642, China
| | - Yu Pan
- Guangdong Provincial Key Laboratory of Veterinary Pharmaceutics Development and Safety Evaluation, College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China; National Risk Assessment Laboratory for Antimicrobial Resistance of Animal Original Bacteria, South China Agricultural University, Guangzhou 510642, China; National Laboratory of Safety Evaluation (Environmental Assessment) of Veterinary Drugs, South China Agricultural University, Guangzhou 510642, China
| | - Zhenbao Ma
- Animal Husbandry and Fisheries Research Center of Guangdong Haid Group Co., Ltd., Guangzhou, Guangdong Province, China
| | - Lingxuan Zhang
- Guangdong Provincial Key Laboratory of Veterinary Pharmaceutics Development and Safety Evaluation, College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China; National Risk Assessment Laboratory for Antimicrobial Resistance of Animal Original Bacteria, South China Agricultural University, Guangzhou 510642, China; National Laboratory of Safety Evaluation (Environmental Assessment) of Veterinary Drugs, South China Agricultural University, Guangzhou 510642, China
| | - Wenguang Xiong
- Guangdong Provincial Key Laboratory of Veterinary Pharmaceutics Development and Safety Evaluation, College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China; National Risk Assessment Laboratory for Antimicrobial Resistance of Animal Original Bacteria, South China Agricultural University, Guangzhou 510642, China; National Laboratory of Safety Evaluation (Environmental Assessment) of Veterinary Drugs, South China Agricultural University, Guangzhou 510642, China
| | - Dongping Zeng
- Guangdong Provincial Key Laboratory of Veterinary Pharmaceutics Development and Safety Evaluation, College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China; National Risk Assessment Laboratory for Antimicrobial Resistance of Animal Original Bacteria, South China Agricultural University, Guangzhou 510642, China; National Laboratory of Safety Evaluation (Environmental Assessment) of Veterinary Drugs, South China Agricultural University, Guangzhou 510642, China
| | - Zhenling Zeng
- Guangdong Provincial Key Laboratory of Veterinary Pharmaceutics Development and Safety Evaluation, College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China; National Risk Assessment Laboratory for Antimicrobial Resistance of Animal Original Bacteria, South China Agricultural University, Guangzhou 510642, China; National Laboratory of Safety Evaluation (Environmental Assessment) of Veterinary Drugs, South China Agricultural University, Guangzhou 510642, China.
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3
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Research Updates of Plasmid-Mediated Aminoglycoside Resistance 16S rRNA Methyltransferase. Antibiotics (Basel) 2022; 11:antibiotics11070906. [PMID: 35884160 PMCID: PMC9311965 DOI: 10.3390/antibiotics11070906] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2022] [Revised: 06/29/2022] [Accepted: 06/30/2022] [Indexed: 01/27/2023] Open
Abstract
With the wide spread of multidrug-resistant bacteria, a variety of aminoglycosides have been used in clinical practice as one of the effective options for antimicrobial combinations. However, in recent years, the emergence of high-level resistance against pan-aminoglycosides has worsened the status of antimicrobial resistance, so the production of 16S rRNA methyltransferase (16S-RMTase) should not be ignored as one of the most important resistance mechanisms. What is more, on account of transferable plasmids, the horizontal transfer of resistance genes between pathogens becomes easier and more widespread, which brings challenges to the treatment of infectious diseases and infection control of drug-resistant bacteria. In this review, we will make a presentation on the prevalence and genetic environment of 16S-RMTase encoding genes that lead to high-level resistance to aminoglycosides.
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4
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Characterization of Aminoglycoside Modifying Enzymes Producing E. coli and Klebsiella pneumoniae Clinical Isolates. JOURNAL OF PURE AND APPLIED MICROBIOLOGY 2021. [DOI: 10.22207/jpam.15.4.68] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Antimicrobial resistance gene profile characterization and dissemination offer useful detail on the possible challenge in treating bacteria. The development of aminoglycoside modifying enzymes (AMEs) is considered as the primary mechanism of resistance to aminoglycosides, in addition to the 16S rRNA methylases. This study aimed at isolation and characterization of aminoglycosides resistant clinical isolates of enterobacteriaceae family from different clinical samples. Over a period of 24 months, thirty samples were collected and 49 clinical isolates of E. coli [n=25], Klebsiella [n=13], Enterobacter species (n=7) and Proteus species (n=4) were isolated from Egyptian clinical laboratories. The identities of the cultures were confirmed following standard microbiological procedures. Resistance of the isolates to aminoglycosides was determined by the disc diffusion method and isolates with highest resistance (n=9) were selected and investigated for 16S rRNA methylase and AMES encoding genes by polymerase chain reaction (PCR) and sequencing. In general, aminoglycoside resistance was found in 95% of the isolates; the isolates displayed the highest rate of resistance to netilmicin (75%) and kanamycin (55%), while resistance to gentamycin (18%) and tobramycin (16%) was low. A total of 9 isolates have the highest aminoglycoside resistant rate, showed the highest appearance for aac(6′)-Ib as well as ant (3″)-Ia resistant genes, with aac (3)-II (44%) and ant (4′)-IIb (34%) following closely. The high prevalence of AMEs observed among resistant isolates in this study suggests the urgent need for more efficient treatment designs to mitigate the selection burden as well as improved care of patients who have been infected with these drug-resistant organisms.
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5
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Lu X, Zeng M, Zhang N, Wang M, Gu B, Li J, Jin H, Xiao W, Li Z, Zhao H, Zhou H, Li Z, Xu J, Xu X, Kan B. Prevalence of 16S rRNA Methylation Enzyme Gene armA in Salmonella From Outpatients and Food. Front Microbiol 2021; 12:663210. [PMID: 34113329 PMCID: PMC8186500 DOI: 10.3389/fmicb.2021.663210] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2021] [Accepted: 04/06/2021] [Indexed: 11/25/2022] Open
Abstract
Salmonella is the primary cause of community-acquired foodborne infections, so its resistance to antimicrobials, such as aminoglycosides, is a public health issue. Of concern, aminoglycoside resistance in Salmonella is increasing rapidly. Here, we performed a retrospective study evaluating the prevalence of Salmonella harboring armA-mediated aminoglycoside resistance in community-acquired infections and in food or environmental sources. The prevalence rates of armA-harboring Salmonella strains were 1.1/1,000 (13/12,095) and 8.7/1,000 (32/3,687) in outpatient and food/environmental isolates, respectively. All the armA-harboring Salmonella strains were resistant to multiple drugs, including fluoroquinolone and/or extended-spectrum cephalosporins, and most (34/45) belonged to serovar Indiana. The armA gene of these strains were all carried on plasmids, which spanned five replicon types with IncHI2 being the dominant plasmid type. All the armA-carrying plasmids were transferable into Escherichia coli and Acinetobacter baumannii recipients. The conjugation experiment results revealed that the armA-harboring S. Indiana strains had a relatively higher ability to acquire armA-carrying plasmids. The low similarity of their pulsed field gel electrophoresis patterns indicates that the armA-harboring Salmonella strains were unlikely to have originated from a single epidemic clone, suggesting broad armA spread. Furthermore, the genetic backgrounds of armA-harboring Salmonella strains isolated from outpatients exhibited higher similarity to those isolated from poultry than to those isolated from swine, suggesting that poultry consumption maybe an infection source. These findings highlight an urgent need to monitor the prevalence and transmission of armA-harboring Salmonella, especially S. Indiana, to better understand the potential public health threat and prevent the further spread of these strains.
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Affiliation(s)
- Xin Lu
- State Key Laboratory of Infectious Disease Prevention and Control, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China.,Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Technology and Business University, Beijing, China
| | - Mei Zeng
- Children's Hospital of Fudan University, Shanghai, China
| | - Ning Zhang
- State Key Laboratory of Infectious Disease Prevention and Control, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China.,Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Technology and Business University, Beijing, China.,School of Light Industry, Beijing Technology and Business University, Beijing, China
| | - Mengyu Wang
- State Key Laboratory of Infectious Disease Prevention and Control, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China.,Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Technology and Business University, Beijing, China.,Jiangxi Provincial Key Laboratory of Preventive Medicine, School of Public Health, Nanchang University, Nanchang, China
| | - Baoke Gu
- Department of Microbiology, Shanghai Municipal Center for Disease Control and Prevention, Shanghai, China
| | - Jiaqi Li
- State Key Laboratory of Infectious Disease Prevention and Control, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China.,Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Technology and Business University, Beijing, China.,School of Light Industry, Beijing Technology and Business University, Beijing, China
| | - Huiming Jin
- Department of Microbiology, Shanghai Municipal Center for Disease Control and Prevention, Shanghai, China
| | - Wenjia Xiao
- Department of Microbiology, Shanghai Municipal Center for Disease Control and Prevention, Shanghai, China
| | - Zhe Li
- State Key Laboratory of Infectious Disease Prevention and Control, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China.,Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Technology and Business University, Beijing, China
| | - Hongqun Zhao
- State Key Laboratory of Infectious Disease Prevention and Control, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China.,Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Technology and Business University, Beijing, China
| | - Haijian Zhou
- State Key Laboratory of Infectious Disease Prevention and Control, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China.,Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Technology and Business University, Beijing, China
| | - Zhenpeng Li
- State Key Laboratory of Infectious Disease Prevention and Control, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China.,Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Technology and Business University, Beijing, China
| | - Jialiang Xu
- School of Light Industry, Beijing Technology and Business University, Beijing, China
| | - Xuebin Xu
- Department of Microbiology, Shanghai Municipal Center for Disease Control and Prevention, Shanghai, China
| | - Biao Kan
- State Key Laboratory of Infectious Disease Prevention and Control, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China.,Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Technology and Business University, Beijing, China
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6
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Wei DD, Xiong XS, Mei YF, Du FL, Wan LG, Liu Y. Microbiological and Clinical Characteristics of Klebsiella pneumoniae Isolates of K57 Capsular Serotype in China. Microb Drug Resist 2021; 27:391-400. [PMID: 32762612 DOI: 10.1089/mdr.2018.0456] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023] Open
Affiliation(s)
- Dan-dan Wei
- Department of Clinical Microbiology, First Affiliated Hospital of Nanchang University, Nanchang University, Nanchang, P.R. China
| | - Xiao-shun Xiong
- Department of Clinical Microbiology, Second Affiliated Hospital of Nanchang University, Nanchang University, Nanchang, P.R. China
| | - Yan-fang Mei
- Department of Clinical Microbiology, First Affiliated Hospital of Nanchang University, Nanchang University, Nanchang, P.R. China
| | - Fang-ling Du
- Department of Clinical Microbiology, First Affiliated Hospital of Nanchang University, Nanchang University, Nanchang, P.R. China
| | - La-gen Wan
- Department of Clinical Microbiology, First Affiliated Hospital of Nanchang University, Nanchang University, Nanchang, P.R. China
| | - Yang Liu
- Department of Clinical Microbiology, First Affiliated Hospital of Nanchang University, Nanchang University, Nanchang, P.R. China
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7
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Liao X, Yang RS, Xia J, Chen L, Zhang R, Fang LX, Lei F, Song G, Jia L, Han L, Bai S, Bai R, Sun J, Liu YH. High colonization rate of a novel carbapenem-resistant Klebsiella lineage among migratory birds at Qinghai Lake, China. J Antimicrob Chemother 2020; 74:2895-2903. [PMID: 31340044 DOI: 10.1093/jac/dkz268] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2019] [Revised: 05/16/2019] [Accepted: 05/20/2019] [Indexed: 12/18/2022] Open
Abstract
OBJECTIVES The emergence of carbapenemase-positive Enterobacteriaceae poses a serious threat to public health worldwide. Here we conducted a molecular surveillance study on carbapenem-resistant Enterobacteriaceae (CRE) colonization among migratory birds at Qinghai Lake in China. METHODS A total of 420 samples from migratory birds and their surrounding environment were collected at three sites along the Qinghai Lake bird island. Carbapenem-non-susceptible isolates were identified by 16S rDNA sequencing and MALDI-TOF MS. Carbapenemase producers were determined by Carba NP testing. Antimicrobial susceptibility testing, transfer ability and PFGE were also performed, and 46 isolates from different pulsotypes were analysed by WGS. RESULTS Three hundred and fifty isolates were carbapenemase producers based on Carba NP testing, while 233 Klebsiella spp. and 2 Escherichia coli isolates were NDM-5-carriers. PFGE was performed and showed that the isolates were grouped into five pulsotypes; among these, type A was predominant (86.7%, n = 202) and belonged to a novel Klebsiella lineage, ST1697. WGS analysis indicated that ST1697 strains may be a hybrid of the recombination of Klebsiella quasipneumoniae subsp. similipneumoniae and Klebsiella pneumoniae genomes. CONCLUSIONS This high frequency of carbapenemase producers in migratory birds is unexpected. These results provide new insight into the spread of antibiotic resistance, and highlight that continued vigilance for MDR carbapenemase-producing Enterobacteriaceae in migratory birds is urgently needed.
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Affiliation(s)
- Xiaoping Liao
- National Risk Assessment Laboratory for Antimicrobial Resistance of Animal Original Bacteria, South China Agricultural University, Guangzhou, P. R. China.,College of Veterinary Medicine, South China Agricultural University, Guangzhou, P. R. China
| | - Run-Shi Yang
- National Risk Assessment Laboratory for Antimicrobial Resistance of Animal Original Bacteria, South China Agricultural University, Guangzhou, P. R. China.,College of Veterinary Medicine, South China Agricultural University, Guangzhou, P. R. China
| | - Jing Xia
- National Risk Assessment Laboratory for Antimicrobial Resistance of Animal Original Bacteria, South China Agricultural University, Guangzhou, P. R. China.,College of Veterinary Medicine, South China Agricultural University, Guangzhou, P. R. China
| | - Liang Chen
- Public Health Research Institute Tuberculosis Center, New Jersey Medical School, Rutgers University, Newark, NJ, USA
| | - Rongmin Zhang
- National Risk Assessment Laboratory for Antimicrobial Resistance of Animal Original Bacteria, South China Agricultural University, Guangzhou, P. R. China.,College of Veterinary Medicine, South China Agricultural University, Guangzhou, P. R. China
| | - Liang-Xing Fang
- National Risk Assessment Laboratory for Antimicrobial Resistance of Animal Original Bacteria, South China Agricultural University, Guangzhou, P. R. China.,College of Veterinary Medicine, South China Agricultural University, Guangzhou, P. R. China
| | - Fumin Lei
- Key Laboratory of Zoological Systematics and Evolution, Institute of Zoology, Chinese Academy of Sciences, Beijing, China
| | - Gang Song
- Key Laboratory of Zoological Systematics and Evolution, Institute of Zoology, Chinese Academy of Sciences, Beijing, China
| | - Ling Jia
- National Risk Assessment Laboratory for Antimicrobial Resistance of Animal Original Bacteria, South China Agricultural University, Guangzhou, P. R. China.,College of Veterinary Medicine, South China Agricultural University, Guangzhou, P. R. China
| | - Lu Han
- National Risk Assessment Laboratory for Antimicrobial Resistance of Animal Original Bacteria, South China Agricultural University, Guangzhou, P. R. China.,College of Veterinary Medicine, South China Agricultural University, Guangzhou, P. R. China
| | - Shuancheng Bai
- National Risk Assessment Laboratory for Antimicrobial Resistance of Animal Original Bacteria, South China Agricultural University, Guangzhou, P. R. China.,College of Veterinary Medicine, South China Agricultural University, Guangzhou, P. R. China
| | - Rina Bai
- National Risk Assessment Laboratory for Antimicrobial Resistance of Animal Original Bacteria, South China Agricultural University, Guangzhou, P. R. China.,College of Veterinary Medicine, South China Agricultural University, Guangzhou, P. R. China
| | - Jian Sun
- National Risk Assessment Laboratory for Antimicrobial Resistance of Animal Original Bacteria, South China Agricultural University, Guangzhou, P. R. China.,College of Veterinary Medicine, South China Agricultural University, Guangzhou, P. R. China
| | - Ya-Hong Liu
- National Risk Assessment Laboratory for Antimicrobial Resistance of Animal Original Bacteria, South China Agricultural University, Guangzhou, P. R. China.,College of Veterinary Medicine, South China Agricultural University, Guangzhou, P. R. China.,Guangdong Provincial Key Laboratory of Veterinary Pharmaceutics Development and Safety Evaluation, South China Agricultural University, Guangzhou, China
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8
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Liu Y, Du FL, Xiang TX, Wan LG, Wei DD, Cao XW, Zhang W. High Prevalence of Plasmid-Mediated Quinolone Resistance Determinants Among Serotype K1 Hypervirulent Klebsiella pneumoniae Isolates in China. Microb Drug Resist 2019; 25:681-689. [PMID: 30615560 DOI: 10.1089/mdr.2018.0173] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Affiliation(s)
- Yang Liu
- Department of Bacteriology, First Affiliated Hospital of Nanchang University, Nanchang University, Nanchang, P.R. China
| | - Fang-ling Du
- Department of Bacteriology, First Affiliated Hospital of Nanchang University, Nanchang University, Nanchang, P.R. China
| | - Tian-xin Xiang
- Department of Infectious Disease, First Affiliated Hospital of Nanchang University, Nanchang University, Nanchang, P.R. China
| | - La-Gen Wan
- Department of Bacteriology, First Affiliated Hospital of Nanchang University, Nanchang University, Nanchang, P.R. China
| | - Dan-dan Wei
- Department of Bacteriology, First Affiliated Hospital of Nanchang University, Nanchang University, Nanchang, P.R. China
| | - Xian-Wei Cao
- Department of Hospital Infection Control, First Affiliated Hospital of Nanchang University, Nanchang University, Nanchang, P.R. China
| | - Wei Zhang
- Department of Respiration, The First Affiliated Hospital of Nanchang University, Nanchang, P.R. China
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9
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Usui M, Kajino A, Kon M, Fukuda A, Sato T, Shirakawa T, Kawanishi M, Harada K, Nakajima C, Suzuki Y, Tamura Y. Prevalence of 16S rRNA methylases in Gram-negative bacteria derived from companion animals and livestock in Japan. J Vet Med Sci 2019; 81:874-878. [PMID: 31061295 PMCID: PMC6612502 DOI: 10.1292/jvms.19-0144] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
Abstract
The emergence and spread of aminoglycoside-resistant bacteria are a public health
concern. The acquisition of the genes encoding 16S rRNA methylases, such as
armA, rmtA, and rmtB, confers
high-level resistance to aminoglycosides. However, the prevalence has not been well
investigated in Japanese veterinary fields. To determine the prevalence of 16S rRNA
methylases in animals, we detected 16S rRNA methylases genes in Gram-negative bacteria
from animals. Here, we report the isolation of rmtB and
armA from two of the 446 Escherichia coli (0.5%) and
one of the 103 Klebsiella spp. isolates (1.0%) from companion animals,
respectively. However, none of the isolations were observed from 2445 E.
coli isolates derived from livestock in Japan. The prevalence of 16S rRNA
methylases in animals, especially in companion animals, should be carefully monitored in
Japanese veterinary fields to avoid the spreading of the genes.
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Affiliation(s)
- Masaru Usui
- Laboratory of Food Microbiology and Food Safety, School of Veterinary Medicine, Rakuno Gakuen University, Ebetsu, Hokkaido 069-8501, Japan
| | - Akari Kajino
- Laboratory of Food Microbiology and Food Safety, School of Veterinary Medicine, Rakuno Gakuen University, Ebetsu, Hokkaido 069-8501, Japan
| | - Michiha Kon
- Laboratory of Food Microbiology and Food Safety, School of Veterinary Medicine, Rakuno Gakuen University, Ebetsu, Hokkaido 069-8501, Japan
| | - Akira Fukuda
- Laboratory of Food Microbiology and Food Safety, School of Veterinary Medicine, Rakuno Gakuen University, Ebetsu, Hokkaido 069-8501, Japan
| | - Tomomi Sato
- Laboratory of Food Microbiology and Food Safety, School of Veterinary Medicine, Rakuno Gakuen University, Ebetsu, Hokkaido 069-8501, Japan
| | - Takahiro Shirakawa
- National Veterinary Assay Laboratory, Ministry of Agriculture, Forestry and Fisheries, 1-15-1 Tokura, Kokubunji, Tokyo 185-8511, Japan
| | - Michiko Kawanishi
- National Veterinary Assay Laboratory, Ministry of Agriculture, Forestry and Fisheries, 1-15-1 Tokura, Kokubunji, Tokyo 185-8511, Japan
| | - Kazuki Harada
- Department of Veterinary Internal Medicine, Tottori University, Minami 4-101, Koyama-cho, Tottori-Shi, Tottori 680-8553, Japan
| | - Chie Nakajima
- Division of Bioresources, Hokkaido University Research Center for Zoonosis Control, Sapporo, Hokkaido 001-0020, Japan
| | - Yasuhiko Suzuki
- Division of Bioresources, Hokkaido University Research Center for Zoonosis Control, Sapporo, Hokkaido 001-0020, Japan
| | - Yutaka Tamura
- Laboratory of Food Microbiology and Food Safety, School of Veterinary Medicine, Rakuno Gakuen University, Ebetsu, Hokkaido 069-8501, Japan
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10
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Kallau NHG, Wibawan IWT, Lukman DW, Sudarwanto MB. Detection of multi-drug resistant (MDR) Escherichia coli and tet gene prevalence at a pig farm in Kupang , Indonesia. J Adv Vet Anim Res 2018; 5:388-396. [PMID: 31453148 PMCID: PMC6702907 DOI: 10.5455/javar.2018.e289] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2018] [Revised: 09/06/2018] [Accepted: 09/07/2018] [Indexed: 12/21/2022] Open
Abstract
OBJECTIVE The purpose of this study was to detect the incidence of multi-drug resistant (MDR) and the spread of tet genes that encode tetracycline (TE) resistance in E. coli in pig farms in the city of Kupang, Indonesia. MATERIALS AND METHODS Samples of pig feces have been obtained from 96 pig farms in Kupang city, Indonesia. Escherichia coli bacteria were isolated and identified morphologically and biochemically, and finally confirmed by the API test. The disk diffusion method has been used to observe the antibiotic sensitivity effects and has been followed by observing resistant genes encoding TE resistance using the multiplex polymerase chain reaction (m-PCR) method to detect the presence of tet genes such as tet (A), tet (B), tet (C), tet (D), and tet (E), respectively. RESULTS A total of 82 (85.4%) of E. coli isolates have been found in all pig feces samples obtained from 96 pig farms in Kupang city. This study has shown a high level of antibiotic resistance dominated by erythromycin (85.4%) and cephalothin (58.5%) and followed by several other antibiotics with a percentage below 34.1%. The prevalence of MDR E. coli was 57.3% by showing 39 different patterns. The most common pattern was showed by the Cephalothin-Colistin-Erythromycin pattern. The resistance of E. coli to TE appears to be related to the presence of tet (A) and tet (E) genes. CONCLUSION This study has encouraged the need for public awareness (farmers) of the wise use of antibiotics in preventing the spread of resistant bacteria that can cause health problems in animals and humans.
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Affiliation(s)
- Novalino Harold Geoffrey Kallau
- Department of Animal Disease and Veterinary Public Health, Faculty of Veterinary Medicine, Nusa Cendana University, Kupang, Indonesia
| | - I Wayan Teguh Wibawan
- Department of Animal Disease and Veterinary Public Health, Faculty of Veterinary Medicine, Bogor Agricultural University, Bogor, Indonesia
| | - Denny Widaya Lukman
- Department of Animal Disease and Veterinary Public Health, Faculty of Veterinary Medicine, Nusa Cendana University, Kupang, Indonesia
- Department of Animal Disease and Veterinary Public Health, Faculty of Veterinary Medicine, Bogor Agricultural University, Bogor, Indonesia
| | - Mirnawati Bachrum Sudarwanto
- Department of Animal Disease and Veterinary Public Health, Faculty of Veterinary Medicine, Nusa Cendana University, Kupang, Indonesia
- Department of Animal Disease and Veterinary Public Health, Faculty of Veterinary Medicine, Bogor Agricultural University, Bogor, Indonesia
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11
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Fang LX, Deng GH, Jiang Q, Cen DJ, Yang RS, Feng YY, Xia J, Sun J, Liu YH, Zhang Q, Liao XP. Clonal expansion and horizontal transmission of epidemic F2:A1:B1 plasmids involved in co-spread ofrmtBwithqepAandblaCTX-M-27 in extensively drug-resistantSalmonella entericaserovar Indiana isolates. J Antimicrob Chemother 2018; 74:334-341. [DOI: 10.1093/jac/dky441] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2018] [Accepted: 09/27/2018] [Indexed: 12/19/2022] Open
Affiliation(s)
- Liang-Xing Fang
- National Risk Assessment Laboratory for Antimicrobial Resistance of Animal Original Bacteria, South China Agricultural University, Guangzhou, P. R. China
- Laboratory of Veterinary Pharmacology, College of Veterinary Medicine, South China Agricultural University, Guangzhou, P. R. China
| | - Guo-Hui Deng
- National Risk Assessment Laboratory for Antimicrobial Resistance of Animal Original Bacteria, South China Agricultural University, Guangzhou, P. R. China
- Laboratory of Veterinary Pharmacology, College of Veterinary Medicine, South China Agricultural University, Guangzhou, P. R. China
| | - Qi Jiang
- National Risk Assessment Laboratory for Antimicrobial Resistance of Animal Original Bacteria, South China Agricultural University, Guangzhou, P. R. China
- Laboratory of Veterinary Pharmacology, College of Veterinary Medicine, South China Agricultural University, Guangzhou, P. R. China
| | - Dao-Ji Cen
- National Risk Assessment Laboratory for Antimicrobial Resistance of Animal Original Bacteria, South China Agricultural University, Guangzhou, P. R. China
- Laboratory of Veterinary Pharmacology, College of Veterinary Medicine, South China Agricultural University, Guangzhou, P. R. China
| | - Run-Shi Yang
- National Risk Assessment Laboratory for Antimicrobial Resistance of Animal Original Bacteria, South China Agricultural University, Guangzhou, P. R. China
- Laboratory of Veterinary Pharmacology, College of Veterinary Medicine, South China Agricultural University, Guangzhou, P. R. China
| | - Yun-Yun Feng
- National Risk Assessment Laboratory for Antimicrobial Resistance of Animal Original Bacteria, South China Agricultural University, Guangzhou, P. R. China
- Laboratory of Veterinary Pharmacology, College of Veterinary Medicine, South China Agricultural University, Guangzhou, P. R. China
| | - Jing Xia
- National Risk Assessment Laboratory for Antimicrobial Resistance of Animal Original Bacteria, South China Agricultural University, Guangzhou, P. R. China
- Laboratory of Veterinary Pharmacology, College of Veterinary Medicine, South China Agricultural University, Guangzhou, P. R. China
| | - Jian Sun
- National Risk Assessment Laboratory for Antimicrobial Resistance of Animal Original Bacteria, South China Agricultural University, Guangzhou, P. R. China
- Laboratory of Veterinary Pharmacology, College of Veterinary Medicine, South China Agricultural University, Guangzhou, P. R. China
| | - Ya-Hong Liu
- National Risk Assessment Laboratory for Antimicrobial Resistance of Animal Original Bacteria, South China Agricultural University, Guangzhou, P. R. China
- Laboratory of Veterinary Pharmacology, College of Veterinary Medicine, South China Agricultural University, Guangzhou, P. R. China
| | - Qijing Zhang
- Department of Veterinary Microbiology and Preventive Medicine, College of Veterinary Medicine, Iowa State University, Ames, IA, USA
| | - Xiao-Ping Liao
- National Risk Assessment Laboratory for Antimicrobial Resistance of Animal Original Bacteria, South China Agricultural University, Guangzhou, P. R. China
- Laboratory of Veterinary Pharmacology, College of Veterinary Medicine, South China Agricultural University, Guangzhou, P. R. China
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Nasiri G, Peymani A, Farivar TN, Hosseini P. Molecular epidemiology of aminoglycoside resistance in clinical isolates of Klebsiella pneumoniae collected from Qazvin and Tehran provinces, Iran. INFECTION GENETICS AND EVOLUTION 2018; 64:219-224. [PMID: 29964191 DOI: 10.1016/j.meegid.2018.06.030] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/15/2017] [Revised: 06/02/2018] [Accepted: 06/27/2018] [Indexed: 11/18/2022]
Abstract
Production of aminoglycoside modifying enzymes (AMEs) and 16S rRNA methylases are two main resistance mechanisms against these antibiotics. This study determined the frequency of AMEs and 16 s rRNA methylase genes among aminoglycoside non-susceptible K. pneumoniae isolates and evaluated their clonal relationship by enterobacterial repetitive intergenic consensus (ERIC)-PCR. A total of 177 K. pneumoniae isolates were collected from hospitals of Qazvin and Tehran, Iran. The identification of isolates was done by standard laboratory methods and API 20E strips. Aminoglycosides susceptibility was determined by Kirby-Bauer method and AMEs and 16S rRNA methylase encoding genes were studied by PCR and sequencing methods. Clonal relatedness of isolates was assessed by ERIC-PCR method. In total, 74% of isolates were non-susceptible to the aminoglycosides used in the study among those kanamycin 110 (62.1%), tobramycin 91 (51.4%), and gentamycin 87 (49.2%) showed the highest rates of resistance whereas netilmicin and amikacin revealed high susceptibility rates of 67.8% and 61.0%, respectively. Of 130 aminoglycoside non-susceptible isolates, 91.5% were positive for the presence of aac(6')-Ib as the most dominant gene followed by aac(3)-II (78.5%), aph(3')-IIIa (14.6%), ant(4')-Ia (3.1%), and armA (7.7%) either alone or in combination. ERIC-PCR results showed 67.7% of non-susceptible isolates had different banding patterns followed by three distinct clones including A (16.2%), B (10.8%), and C (5.4%). Among those isolates carrying AMEs genes, 85 (68%) isolates belonged to independent groups and 21 (16.8%), 12 (9.6%), and 7 (5.6%) isolates belonged to groups A, B, and C, respectively, whereas 7 (70%) of 16S rRNA methylase-producing isolates belonged to independent groups. Our results revealed high prevalence of AMEs with the emergence of armA genes among the genetically unrelated resistant isolates of K. pneumonia in Iran, suggesting the need for more effective therapeutic strategies to reduce the selection pressure and better management of the patients infected with these resistant isolates.
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Affiliation(s)
- Gelareh Nasiri
- Medical Microbiology Research Center, Qazvin University of Medical Sciences, Qazvin, IR, Iran
| | - Amir Peymani
- Medical Microbiology Research Center, Qazvin University of Medical Sciences, Qazvin, IR, Iran.
| | - Taghi Naserpour Farivar
- Medical Microbiology Research Center, Qazvin University of Medical Sciences, Qazvin, IR, Iran
| | - Peyman Hosseini
- Medical Microbiology Research Center, Qazvin University of Medical Sciences, Qazvin, IR, Iran
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Sun J, Li XP, Fang LX, Sun RY, He YZ, Lin J, Liao XP, Feng Y, Liu YH. Co-occurrence of mcr-1 in the chromosome and on an IncHI2 plasmid: persistence of colistin resistance in Escherichia coli. Int J Antimicrob Agents 2018; 51:842-847. [PMID: 29371103 DOI: 10.1016/j.ijantimicag.2018.01.007] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2017] [Revised: 01/08/2018] [Accepted: 01/13/2018] [Indexed: 12/31/2022]
Abstract
Two colistin-resistant Escherichia coli strains (FS13Z2S and FS3Z6C) possessing chromosomally encoded mcr-1 isolated from swine were characterised. Whole-genome sequencing revealed that in strain FS13Z2S mcr-1 occurred in triplicate in the chromosome with another copy encoded on a pHNSHP45-2-like IncHI2 plasmid, whereas in strain FS3Z6C only one copy mcr-1 was inserted in the chromosome. It seems likely that the triplication of chromosomal copies of mcr-1 in FS13Z2S is due to intramolecular transposition events via a composite transposon containing an mcr-1 cassette bracketed by two copies of insertion sequence ISApl1, and the pap2 gene at the insertion site was truncated by an IS1294-like element. In plasmid pFS13Z2S and the chromosome of strain FS3Z6C, only a single copy of ISApl1 was present upstream of the mcr-1 cassette. The two strains exhibited similar colistin minimum inhibitory concentrations (MICs) and featured phosphoethanolamine addition to lipid A, without regard to the copy number of mcr-1. The mcr-1-harbouring plasmid was unstable in wild-type strain FS13Z2S and was quickly lost after 7 days of passage on colistin-free Luria-Bertani broth containing 0.5% SDS, but the mcr-1 copies on the chromosome persisted. These results reveal that the single copy of mcr-1 could result in modification of lipopolysaccharide (LPS) and cause colistin resistance in E. coli. Acquisition of multiple copies of mcr-1, especially on the chromosome, would facilitate stable persistence of colistin resistance in the host strain.
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Affiliation(s)
- Jian Sun
- National Risk Assessment Laboratory for Antimicrobial Resistance of Animal Original Bacteria, South China Agricultural University, Guangzhou, China; Guangdong Provincial Key Laboratory of Veterinary Pharmaceutics Development and Safety Evaluation, South China Agricultural University, Guangzhou, China
| | - Xing-Ping Li
- National Risk Assessment Laboratory for Antimicrobial Resistance of Animal Original Bacteria, South China Agricultural University, Guangzhou, China; Guangdong Provincial Key Laboratory of Veterinary Pharmaceutics Development and Safety Evaluation, South China Agricultural University, Guangzhou, China
| | - Liang-Xing Fang
- National Risk Assessment Laboratory for Antimicrobial Resistance of Animal Original Bacteria, South China Agricultural University, Guangzhou, China; Guangdong Provincial Key Laboratory of Veterinary Pharmaceutics Development and Safety Evaluation, South China Agricultural University, Guangzhou, China
| | - Ruan-Yang Sun
- National Risk Assessment Laboratory for Antimicrobial Resistance of Animal Original Bacteria, South China Agricultural University, Guangzhou, China; Guangdong Provincial Key Laboratory of Veterinary Pharmaceutics Development and Safety Evaluation, South China Agricultural University, Guangzhou, China
| | - Yu-Zhang He
- National Risk Assessment Laboratory for Antimicrobial Resistance of Animal Original Bacteria, South China Agricultural University, Guangzhou, China; Guangdong Provincial Key Laboratory of Veterinary Pharmaceutics Development and Safety Evaluation, South China Agricultural University, Guangzhou, China
| | - Jingxia Lin
- Department of Medical Microbiology and Parasitology, Zhejiang University School of Medicine, Hangzhou, China
| | - Xiao-Ping Liao
- National Risk Assessment Laboratory for Antimicrobial Resistance of Animal Original Bacteria, South China Agricultural University, Guangzhou, China; Guangdong Provincial Key Laboratory of Veterinary Pharmaceutics Development and Safety Evaluation, South China Agricultural University, Guangzhou, China
| | - Youjun Feng
- National Risk Assessment Laboratory for Antimicrobial Resistance of Animal Original Bacteria, South China Agricultural University, Guangzhou, China; Department of Medical Microbiology and Parasitology, Zhejiang University School of Medicine, Hangzhou, China.
| | - Ya-Hong Liu
- National Risk Assessment Laboratory for Antimicrobial Resistance of Animal Original Bacteria, South China Agricultural University, Guangzhou, China; Guangdong Provincial Key Laboratory of Veterinary Pharmaceutics Development and Safety Evaluation, South China Agricultural University, Guangzhou, China; Jiangsu Co-Innovation Centre for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, Jiangsu, China.
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Ma S, Lei C, Kong L, Jiang W, Liu B, Men S, Yang Y, Cheng G, Chen Y, Wang H. Prevalence, Antimicrobial Resistance, and Relatedness of Salmonella Isolated from Chickens and Pigs on Farms, Abattoirs, and Markets in Sichuan Province, China. Foodborne Pathog Dis 2017; 14:667-677. [PMID: 28910166 DOI: 10.1089/fpd.2016.2264] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
This study aims at investigating the distribution, antimicrobial resistance, and genetic relationship of Salmonella isolated from 18 farms, their downstream abattoirs, and markets of chickens and pigs in Sichuan province, China. A total of 193 Salmonella isolates were identified from 693 samples with an isolation rate of 26.27% (88/335) in chickens and 29.33% (105/358) in pigs. Salmonella was isolated more frequently in abattoirs and markets than from farms. Serotypes were determined according to the White-Kauffmann-Le Minor scheme and 16 different serotypes were identified, with Derby being the most common, followed by Typhimurium and Meleagridis. Antimicrobial resistance phenotypes and genotypes were studied by using the disk diffusion method and polymerase chain reaction (PCR) amplification, respectively. Overall, 44.04% (n = 85) of all isolates were multidrug resistant (MDR) and resistance to nalidixic acid (51.30%) was the most frequently observed. blaCTX-M-55 was the most prevalent extended-spectrum β-lactamases gene, and polymyxin resistance gene mcr-1 was present in strains with various serotypes. Multilocus sequence typing indicated that sequence type (ST) had a close relationship with serotype, and 34.20% of all strains were ST40, which was the most prevalent. The unweighted pair group method with arithmetic means (UPGMA) dendrogram of pulsed-field gel electrophoresis showed that Salmonella isolates belonging to the same serovar from different parts of the production chain were highly genetic related, indicating that Salmonella as well as resistance genes could potentially be transmitted from farms to markets. Our study highlights the fact that Salmonella isolates from chicken and pig production chain were frequently exhibiting MDR profiles, and the dissemination of MDR Salmonella from farm to market could pose significant threats to food safety and public health.
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Affiliation(s)
- Suzhen Ma
- 1 Key Laboratory of Bio-resources and Eco-environment, Ministry of Education, College of Life Science, Sichuan University , Chengdu, China .,2 Animal Disease Prevention and Food Safety Key Laboratory of Sichuan Province , Chengdu, China
| | - Changwei Lei
- 1 Key Laboratory of Bio-resources and Eco-environment, Ministry of Education, College of Life Science, Sichuan University , Chengdu, China .,2 Animal Disease Prevention and Food Safety Key Laboratory of Sichuan Province , Chengdu, China
| | - Linghan Kong
- 1 Key Laboratory of Bio-resources and Eco-environment, Ministry of Education, College of Life Science, Sichuan University , Chengdu, China .,2 Animal Disease Prevention and Food Safety Key Laboratory of Sichuan Province , Chengdu, China
| | - Wei Jiang
- 1 Key Laboratory of Bio-resources and Eco-environment, Ministry of Education, College of Life Science, Sichuan University , Chengdu, China .,2 Animal Disease Prevention and Food Safety Key Laboratory of Sichuan Province , Chengdu, China
| | - Bihui Liu
- 1 Key Laboratory of Bio-resources and Eco-environment, Ministry of Education, College of Life Science, Sichuan University , Chengdu, China .,2 Animal Disease Prevention and Food Safety Key Laboratory of Sichuan Province , Chengdu, China
| | - Shuai Men
- 1 Key Laboratory of Bio-resources and Eco-environment, Ministry of Education, College of Life Science, Sichuan University , Chengdu, China .,2 Animal Disease Prevention and Food Safety Key Laboratory of Sichuan Province , Chengdu, China
| | - Yanxian Yang
- 1 Key Laboratory of Bio-resources and Eco-environment, Ministry of Education, College of Life Science, Sichuan University , Chengdu, China .,2 Animal Disease Prevention and Food Safety Key Laboratory of Sichuan Province , Chengdu, China
| | - Guangyang Cheng
- 1 Key Laboratory of Bio-resources and Eco-environment, Ministry of Education, College of Life Science, Sichuan University , Chengdu, China .,2 Animal Disease Prevention and Food Safety Key Laboratory of Sichuan Province , Chengdu, China
| | - Yanpeng Chen
- 1 Key Laboratory of Bio-resources and Eco-environment, Ministry of Education, College of Life Science, Sichuan University , Chengdu, China .,2 Animal Disease Prevention and Food Safety Key Laboratory of Sichuan Province , Chengdu, China
| | - Hongning Wang
- 1 Key Laboratory of Bio-resources and Eco-environment, Ministry of Education, College of Life Science, Sichuan University , Chengdu, China .,2 Animal Disease Prevention and Food Safety Key Laboratory of Sichuan Province , Chengdu, China .,3 "985 Project" Science Innovative Platform for Resource and Environment Protection of Southwestern China, Chengdu, China
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Xia J, Fang LX, Cheng K, Xu GH, Wang XR, Liao XP, Liu YH, Sun J. Clonal Spread of 16S rRNA Methyltransferase-Producing Klebsiella pneumoniae ST37 with High Prevalence of ESBLs from Companion Animals in China. Front Microbiol 2017; 8:529. [PMID: 28446899 PMCID: PMC5389360 DOI: 10.3389/fmicb.2017.00529] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2017] [Accepted: 03/14/2017] [Indexed: 11/23/2022] Open
Abstract
We screened 30 Klebsiella pneumoniae isolates from dogs and cats at a single animal hospital in Guangdong Province, China. Among them, 12 K. pneumoniae strains possessed high-level resistance to amikacin and gentamicin and these were screened for 16S rRNA methyltransferase (16S-RMTase) genes. And then the genes positive isolates were detected for ESBLs (extended spectrum β-lactamases) and analyzed by pulsed-field gel electrophoresis, multilocus sequence typing, PCR-based replicon typing and plasmid analysis. The genetic profiles of rmtB were also determined by PCR mapping. The twelve 16S-RMTase gene-positive isolates were rmtB (11/30) and armA (2/30) with one isolate carrying both genes. Extended spectrum β-lactamases genes were represented by blaCTX-M-55 (9/12), blaCTX-M-27 (2/12) and blaCTX-M-14 (1/12). The twelve 16S-RMTase containing strains were grouped into five clonal patterns and ST37 was the most prevalent sequence type. Ten rmtB-bearing plasmids conjugated successfully and all belonged to IncN and IncF (F33:A-:B-) incompatibility groups. Nine of the transconjugants carried a 97 kb plasmid and the other harbored both ∼60 and ∼200 kb plasmids. rmtB and blaCTX-M-55 were present on the same plasmid and indicated the co-transfer of these two genes, with the rmtB gene showing highly relevant relationships with IS26 and Tn3. Our findings suggested a high prevalence of 16S-RMTase genes in K. pneumonia ST37 from dogs and cats. Additional studies are needed to trace the evolutionary path of this type of resistance among the K. pneumonia isolates, and to determine whether they have been transferred to humans.
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Affiliation(s)
- Jing Xia
- National Risk Assessment Laboratory for Antimicrobial Resistance of Animal Original Bacteria, South China Agricultural UniversityGuangzhou, China.,Guangdong Provincial Key Laboratory of Veterinary Pharmaceutics Development and Safety Evaluation, South China Agricultural UniversityGuangzhou, China
| | - Liang-Xing Fang
- National Risk Assessment Laboratory for Antimicrobial Resistance of Animal Original Bacteria, South China Agricultural UniversityGuangzhou, China.,Guangdong Provincial Key Laboratory of Veterinary Pharmaceutics Development and Safety Evaluation, South China Agricultural UniversityGuangzhou, China
| | - Ke Cheng
- National Risk Assessment Laboratory for Antimicrobial Resistance of Animal Original Bacteria, South China Agricultural UniversityGuangzhou, China.,Guangdong Provincial Key Laboratory of Veterinary Pharmaceutics Development and Safety Evaluation, South China Agricultural UniversityGuangzhou, China
| | - Guo-Hao Xu
- National Risk Assessment Laboratory for Antimicrobial Resistance of Animal Original Bacteria, South China Agricultural UniversityGuangzhou, China.,Guangdong Provincial Key Laboratory of Veterinary Pharmaceutics Development and Safety Evaluation, South China Agricultural UniversityGuangzhou, China
| | - Xi-Ran Wang
- National Risk Assessment Laboratory for Antimicrobial Resistance of Animal Original Bacteria, South China Agricultural UniversityGuangzhou, China.,Guangdong Provincial Key Laboratory of Veterinary Pharmaceutics Development and Safety Evaluation, South China Agricultural UniversityGuangzhou, China
| | - Xiao-Ping Liao
- National Risk Assessment Laboratory for Antimicrobial Resistance of Animal Original Bacteria, South China Agricultural UniversityGuangzhou, China.,Guangdong Provincial Key Laboratory of Veterinary Pharmaceutics Development and Safety Evaluation, South China Agricultural UniversityGuangzhou, China
| | - Ya-Hong Liu
- National Risk Assessment Laboratory for Antimicrobial Resistance of Animal Original Bacteria, South China Agricultural UniversityGuangzhou, China.,Guangdong Provincial Key Laboratory of Veterinary Pharmaceutics Development and Safety Evaluation, South China Agricultural UniversityGuangzhou, China.,Jiangsu Co-Innovation Centre for Prevention and Control of Important Animal Infectious Diseases and ZoonosesYangzhou, China
| | - Jian Sun
- National Risk Assessment Laboratory for Antimicrobial Resistance of Animal Original Bacteria, South China Agricultural UniversityGuangzhou, China.,Guangdong Provincial Key Laboratory of Veterinary Pharmaceutics Development and Safety Evaluation, South China Agricultural UniversityGuangzhou, China
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