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Belotindos LP, Tsunoda R, Villanueva MA, Nakajima C, Mingala CN, Suzuki Y. Characterisation of plasmids harbouring qnrA1, qnrS1, and qnrB4 in E. coli isolated in the Philippines from food-producing animals and their products. J Glob Antimicrob Resist 2022; 30:38-46. [PMID: 35447382 DOI: 10.1016/j.jgar.2022.04.012] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2021] [Revised: 03/19/2022] [Accepted: 04/11/2022] [Indexed: 10/18/2022] Open
Abstract
OBJECTIVES Determinants showing plasmid-mediated quinolone resistance, which usually leads to antimicrobial ineffectiveness, have become an emerging clinical problem. In our previous study in the Philippines, a high prevalence of Qnr determinants was found in clinical samples and food-producing animals and their food products. However, no qnr-carrying plasmids have been investigated in animals or animal-derived foods. Hence, in the present, we aimed to characterise qnr-carrying plasmids in Escherichia coli isolated from the food supply chain. METHODS Plasmids from 44 qnr-positive isolates were assigned to incompatibility groups by PCR-based replicon typing, and the presence of β-lactamase-encoding genes were investigated by PCR. Localisation of qnr in plasmids was determined by S1-PFGE and Southern blot hybridisation. The transferability of qnr-carrying plasmids was examined by conjugation analysis. RESULTS Overall, 77.3% (95%CI = 62.2 - 88.5) of the isolates harbouring qnr determinants were positive for seven plasmid types, and 56.8% concurrently harboured blaTEM-1. Plasmid IncFrepB was prevalent (65.9%, 95%CI = 50.1 - 79.5) among qnr determinants. Localisation of qnr determinants in IncFrepB and transferability of plasmids was further confirmed. CONCLUSIONS The current study proved that qnr in E. coli isolated from food-producing animals and their food products could spread via plasmid IncFrepB upon selective pressure with quinolones or other antimicrobials. Therefore, to curb the emergence and spread of qnr-harbouring bacteria in the Philippines, prudent use of antimicrobials in animal production and stricter hygiene and food handling are recommended.
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Affiliation(s)
- Lawrence P Belotindos
- Division of Bioresources, International Institute for Zoonosis Control Hokkaido University, Sapporo 001-0020, Japan; Biosafety and Environment Section, Philippine Carabao Center, Science City of Muñoz, Nueva Ecija 3120, Philippines.
| | - Risa Tsunoda
- Division of Bioresources, International Institute for Zoonosis Control Hokkaido University, Sapporo 001-0020, Japan.
| | - Marvin A Villanueva
- Biosafety and Environment Section, Philippine Carabao Center, Science City of Muñoz, Nueva Ecija 3120, Philippines.
| | - Chie Nakajima
- Division of Bioresources, International Institute for Zoonosis Control Hokkaido University, Sapporo 001-0020, Japan; International Collaboration Unit, International Institute for Zoonosis Control, Hokkaido University, Sapporo 001-0021, Japan.
| | - Claro N Mingala
- Livestock Biotechnology Center, Philippine Carabao Center, Science City of Muñoz, Nueva Ecija 3120, Philippines.
| | - Yasuhiko Suzuki
- Division of Bioresources, International Institute for Zoonosis Control Hokkaido University, Sapporo 001-0020, Japan; International Collaboration Unit, International Institute for Zoonosis Control, Hokkaido University, Sapporo 001-0021, Japan.
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Hata A, Fujitani N, Ono F, Yoshikawa Y. Surveillance of antimicrobial-resistant Escherichia coli in Sheltered dogs in the Kanto Region of Japan. Sci Rep 2022; 12:773. [PMID: 35031646 PMCID: PMC8760262 DOI: 10.1038/s41598-021-04435-w] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Accepted: 12/22/2021] [Indexed: 11/17/2022] Open
Abstract
There is a lack of an established antimicrobial resistance (AMR) surveillance system in animal welfare centers. Therefore, the AMR prevalence in shelter dogs is rarely known. Herein, we conducted a survey in animal shelters in Chiba and Kanagawa prefectures, in the Kanto Region, Japan, to ascertain the AMR status of Escherichia coli (E. coli) prevalent in shelter dogs. E. coli was detected in the fecal samples of all 61 and 77 shelter dogs tested in Chiba and Kanagawa, respectively. The AMR was tested against 20 antibiotics. E. coli isolates derived from 16.4% and 26.0% of samples from Chiba and Kanagawa exhibited resistance to at least one antibiotic, respectively. E. coli in samples from Chiba and Kanagawa prefectures were commonly resistant to ampicillin, piperacillin, streptomycin, kanamycin, tetracycline, and nalidixic acid; that from the Kanagawa Prefecture to cefazolin, cefotaxime, aztreonam, ciprofloxacin, and levofloxacin and that from Chiba Prefecture to chloramphenicol and imipenem. Multidrug-resistant bacteria were detected in 18 dogs from both regions; β-lactamase genes (blaTEM, blaDHA-1, blaCTX-M-9 group CTX-M-14), quinolone-resistance protein genes (qnrB and qnrS), and mutations in quinolone-resistance-determining regions (gyrA and parC) were detected. These results could partially represent the AMR data in shelter dogs in the Kanto Region of Japan.
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Affiliation(s)
- Akihisa Hata
- Faculty of Veterinary Medicine, Okayama University of Science, Ikoino-oka 1-3, Imabari, Ehime, 7948555, Japan
- Biomedical Science Examination and Research Center, Okayama University of Science, Ikoino-oka 1-3, Imabari, Ehime, 7948555, Japan
| | - Noboru Fujitani
- Faculty of Veterinary Medicine, Okayama University of Science, Ikoino-oka 1-3, Imabari, Ehime, 7948555, Japan.
- Biomedical Science Examination and Research Center, Okayama University of Science, Ikoino-oka 1-3, Imabari, Ehime, 7948555, Japan.
| | - Fumiko Ono
- Faculty of Veterinary Medicine, Okayama University of Science, Ikoino-oka 1-3, Imabari, Ehime, 7948555, Japan
| | - Yasuhiro Yoshikawa
- Faculty of Veterinary Medicine, Okayama University of Science, Ikoino-oka 1-3, Imabari, Ehime, 7948555, Japan
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Belotindos L, Villanueva M, Miguel J, Bwalya P, Harada T, Kawahara R, Nakajima C, Mingala C, Suzuki Y. Prevalence and Characterization of Quinolone-Resistance Determinants in Escherichia coli Isolated from Food-Producing Animals and Animal-Derived Food in the Philippines. Antibiotics (Basel) 2021; 10:antibiotics10040413. [PMID: 33918946 PMCID: PMC8068814 DOI: 10.3390/antibiotics10040413] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2021] [Revised: 04/07/2021] [Accepted: 04/08/2021] [Indexed: 02/07/2023] Open
Abstract
Antimicrobial resistance to quinolones, which constitutes a threat to public health, has been increasing worldwide. In this study, we investigated the prevalence of quinolone-resistant determinants in Escherichia coli not susceptible to quinolones and isolated from food-producing animals and food derived from them, in the Philippines. A total of 791 E. coli strains were isolated in 56.4% of 601 beef, chicken, pork, egg, and milk samples, as well as environmental, cloacal, and rectal swab-collected samples from supermarkets, open markets, abattoirs, and poultry, swine, and buffalo farms. Using the disc diffusion method, it was determined that 78.6% and 55.4% of the isolates were resistant to at least one antimicrobial and multiple drugs, respectively. In 141 isolates not susceptible to quinolones, 115 (81.6%) harbored quinolone-resistant determinants and had mutations predominantly in the quinolone-resistance determining regions (QRDRs) of gyrA and parC. Plasmid-mediated, quinolone resistance (PMQR) and Qnr family (qnrA1, qnrB4, and qnrS1) genes were detected in all isolates. Forty-eight sequence types were identified in isolates harboring mutations in QRDR and/or PMQR genes by multilocus sequence typing analysis. Moreover, 26 isolates harboring mutations in QRDR and/or PMQR genes belonged mostly to phylogroup B1 and Enteroaggregative E. coli. In conclusion, a high prevalence of E. coli was found in food-producing animals and products derived from them, which could potentially spread high-risk clones harboring quinolone-resistance determinants.
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Affiliation(s)
- Lawrence Belotindos
- Division of Bioresources, International Institute for Zoonosis Control Hokkaido University, Sapporo 001-0020, Japan; (L.B.); (P.B.); (C.N.)
- Biosafety and Environment Section, Philippine Carabao Center, Science City of Muñoz, Nueva Ecija 3120, Philippines; (M.V.); (C.M.)
| | - Marvin Villanueva
- Biosafety and Environment Section, Philippine Carabao Center, Science City of Muñoz, Nueva Ecija 3120, Philippines; (M.V.); (C.M.)
| | - Joel Miguel
- Livestock Biotechnology Center, Philippine Carabao Center, Science City of Muñoz, Nueva Ecija 3120, Philippines;
| | - Precious Bwalya
- Division of Bioresources, International Institute for Zoonosis Control Hokkaido University, Sapporo 001-0020, Japan; (L.B.); (P.B.); (C.N.)
| | - Tetsuya Harada
- Division of Microbiology, Osaka Institute of Public Health, Osaka 537-0025, Japan; (R.K.); (T.H.)
| | - Ryuji Kawahara
- Division of Microbiology, Osaka Institute of Public Health, Osaka 537-0025, Japan; (R.K.); (T.H.)
| | - Chie Nakajima
- Division of Bioresources, International Institute for Zoonosis Control Hokkaido University, Sapporo 001-0020, Japan; (L.B.); (P.B.); (C.N.)
- International Collaboration Unit, International Institute for Zoonosis Control, Hokkaido University, Sapporo 001-0021, Japan
| | - Claro Mingala
- Biosafety and Environment Section, Philippine Carabao Center, Science City of Muñoz, Nueva Ecija 3120, Philippines; (M.V.); (C.M.)
- Livestock Biotechnology Center, Philippine Carabao Center, Science City of Muñoz, Nueva Ecija 3120, Philippines;
| | - Yasuhiko Suzuki
- Division of Bioresources, International Institute for Zoonosis Control Hokkaido University, Sapporo 001-0020, Japan; (L.B.); (P.B.); (C.N.)
- International Collaboration Unit, International Institute for Zoonosis Control, Hokkaido University, Sapporo 001-0021, Japan
- Correspondence: ; Tel.: +81-011-706-7315; Fax: +81-0-706-7310
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Seo KW, Lee YJ. Prevalence and Characterization of Plasmid-Mediated Quinolone Resistance Determinants qnr and aac( 6')- Ib- cr in Ciprofloxacin-Resistant Escherichia coli Isolates from Commercial Layer in Korea. J Microbiol Biotechnol 2020; 30:1180-1183. [PMID: 32423191 PMCID: PMC9728193 DOI: 10.4014/jmb.2003.03058] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2020] [Accepted: 05/14/2020] [Indexed: 12/15/2022]
Abstract
The prevalence and characterization of plasmid-mediated quinolone resistance (PMQR) determinants in ciprofloxacin-resistant Escherichia coli isolated from a Korean commercial layer farm were studied. A total of 45 ciprofloxacin-resistant E. coli isolates were recovered and all isolates were multidrug-resistant. Eight isolates have the PMQR genes aac(6')-Ib-cr, qnrS1, and qnrB4, and seven isolates exhibited double amino acid exchange at both gyrA and parC, and have high fluoroquinolone minimum inhibitory concentrations. Five transconjugants demonstrated transferability of PMQR and β-lactamase genes and similar antimicrobial resistance. Because PMQR genes in isolates from commercial layer chickens could enter the food supply and directly affect humans, control of ciprofloxacin resistance is needed.
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Affiliation(s)
- Kwang Won Seo
- College of Veterinary Medicine and Zoonoses Research Institute, Kyungpook National University, Daegu 41566, Republic of Korea,Department of Basic Sciences, College of Veterinary Medicine, Mississippi State University, MS 39762, USA
| | - Young Ju Lee
- College of Veterinary Medicine and Zoonoses Research Institute, Kyungpook National University, Daegu 41566, Republic of Korea,Corresponding author Phone: +82-53-950-7793 Fax: +82-505-950-7793 E-mail:
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Seo KW, Lee YJ. Prevalence and Characterization of Plasmid Mediated Quinolone Resistance Genes and Class 1 Integrons Among Multidrug-Resistant Escherichia coli Isolates from Chicken Meat. J APPL POULTRY RES 2019. [DOI: 10.3382/japr/pfz016] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023] Open
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6
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Na SH, Moon DC, Choi MJ, Oh SJ, Jung DY, Sung EJ, Kang HY, Hyun BH, Lim SK. Antimicrobial Resistance and Molecular Characterization of Extended-Spectrum β-Lactamase-Producing Escherichia coli Isolated from Ducks in South Korea. Foodborne Pathog Dis 2019; 16:799-806. [PMID: 31305137 DOI: 10.1089/fpd.2019.2644] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
Abstract
Ducks are potential carriers of pathogenic bacteria, which are capable of transmitting zoonotic diseases to humans. The global spread of Enterobacteriaceae carrying extended-spectrum β-lactamase (ESBL) genes is a public health concern. This study investigated the prevalence of antimicrobial resistance in Escherichia coli isolated from ducks in Korea and described the molecular characteristics of the ESBLs they produced. A total of 146 E. coli isolates from 404 duck fecal and carcass samples in 85 duck farms were tested for antimicrobial resistance using the broth dilution method and were further characterized using molecular methods. We observed high resistance rates to tetracycline, trimethoprim/sulfamethoxazole, nalidixic acid, ampicillin, and ciprofloxacin. In total, six ceftiofur-resistant isolates (4.1%) were observed, which produced CTX-M-55 (n = 3) or CTX-M-65 β-lactamase (n = 3). All CTX-M-producing E. coli isolates were also resistant to ciprofloxacin, with mutations in the quinolone resistance determining region of GyrA (S83L with or without D87N) and ParC (S80I), and three CTX-M-producing E. coli isolates carried plasmid-mediated quinolone resistance (PMQR) genes, qepA (n = 1), qnrS, and acc(6')-Ib-cr (n = 2). The transfer of blaCTX-M genes was observed in one isolate mediated by IncF-family plasmids but not in the co-resistant isolates carrying both blaCTX-M and PMQR genes. Pulsed-field gel electrophoresis and multilocus sequence typing demonstrated that CTX-M-producing isolates were heterogeneous; however, identical isolates were found in different farms and slaughterhouses. This study presents baseline data on antimicrobial resistance of E. coli derived from duck samples and is the first report of CTX-M-55 and CTX-M-65 β-lactamase-producing E. coli isolated from ducks in Korea. The dissemination of ESBL-producing E. coli poses a potential risk to public health and therefore should be monitored.
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Affiliation(s)
- Seok Hyeon Na
- Bacterial Disease Division, Animal and Plant Quarantine Agency, Gimcheon-si, Republic of Korea
| | - Dong Chan Moon
- Bacterial Disease Division, Animal and Plant Quarantine Agency, Gimcheon-si, Republic of Korea
| | - Myeong-Ja Choi
- Jeonnam National Veterinary Service Laboratory, Gangjingun, Republic of Korea
| | - Sun-Joo Oh
- Jeonnam National Veterinary Service Laboratory, Gangjingun, Republic of Korea
| | - Dae-Young Jung
- Jeonnam National Veterinary Service Laboratory, Gangjingun, Republic of Korea
| | - Eun Ji Sung
- Bacterial Disease Division, Animal and Plant Quarantine Agency, Gimcheon-si, Republic of Korea
| | - Hee Young Kang
- Bacterial Disease Division, Animal and Plant Quarantine Agency, Gimcheon-si, Republic of Korea
| | - Bang-Hun Hyun
- Bacterial Disease Division, Animal and Plant Quarantine Agency, Gimcheon-si, Republic of Korea
| | - Suk-Kyung Lim
- Bacterial Disease Division, Animal and Plant Quarantine Agency, Gimcheon-si, Republic of Korea
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7
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Frazão MR, Andrade LN, Darini ALC, Falcão JP. Antimicrobial resistance and plasmid replicons in Yersinia enterocolitica strains isolated in Brazil in 30 years. Braz J Infect Dis 2017; 21:477-480. [PMID: 28558260 PMCID: PMC9427965 DOI: 10.1016/j.bjid.2017.04.006] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2016] [Revised: 04/13/2017] [Accepted: 04/17/2017] [Indexed: 11/29/2022] Open
Abstract
Some studies evaluated the resistance profile of the Y. enterocolitica strains isolated in diverse countries. However, in Brazil the isolation and the study of Y. enterocolitica are not common and therefore information about the antimicrobial resistance profile of this species in this country is scarce. Therefore, the aim of this study was to evaluate the antimicrobial resistance of Y. enterocolitica of biotypes 1A, 2 and 4 isolated from clinical and non-clinical sources between 1979 and 2012, in Brazil. This study showed that some Yersinia enterocolitica of different biotypes remain susceptible to antimicrobials used for gastroenteritis treatment. Moreover, neither acquired resistance genes nor diversity of plasmids replicons were found; however, variation in the in vitro intrinsic resistant pattern was detected, except the non-resistance to cefoxitin in all strains. Notwithstanding, due to epidemiological link between Y. enterocolitica and the pork production chain, monitoring plasmid acquired resistance in Y. enterocolitica could also be considered for antimicrobial resistance control purposes and food safety measures.
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Affiliation(s)
- Miliane R Frazão
- Universidade de São Paulo (USP), Faculdade de Ciências Farmacêuticas de Ribeirão Preto (FCFRP), Departamento de Análises Clínicas, Toxicológicas e Bromatológicas (DACTB), Ribeirão Preto, SP, Brazil
| | - Leonardo N Andrade
- Universidade de São Paulo (USP), Faculdade de Ciências Farmacêuticas de Ribeirão Preto (FCFRP), Departamento de Análises Clínicas, Toxicológicas e Bromatológicas (DACTB), Ribeirão Preto, SP, Brazil
| | - Ana L C Darini
- Universidade de São Paulo (USP), Faculdade de Ciências Farmacêuticas de Ribeirão Preto (FCFRP), Departamento de Análises Clínicas, Toxicológicas e Bromatológicas (DACTB), Ribeirão Preto, SP, Brazil
| | - Juliana P Falcão
- Universidade de São Paulo (USP), Faculdade de Ciências Farmacêuticas de Ribeirão Preto (FCFRP), Departamento de Análises Clínicas, Toxicológicas e Bromatológicas (DACTB), Ribeirão Preto, SP, Brazil.
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8
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Yeh JC, Lo DY, Chang SK, Chou CC, Kuo HC. Prevalence of plasmid-mediated quinolone resistance in Escherichia coli isolated from diseased animals in Taiwan. J Vet Med Sci 2017; 79:730-735. [PMID: 28250288 PMCID: PMC5402195 DOI: 10.1292/jvms.16-0463] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Escherichia coli (E. coli) is a zoonotic pathogen that often causes diarrhea, respiratory diseases or septicemia in animals. Fluoroquinolones are antimicrobial agents used to treat pathogenic E. coli infections. In this study, 1,221 E. coli strains were isolated between March, 2011 and February, 2014. The results of the antimicrobial susceptibility testing showed a high prevalence of quinolone resistance. The antimicrobial resistance rates of these E. coli isolates to nalidixic acid (NAL) were 72.0% in swine, 81.9% in chickens, 81.0% in turkeys, 64.0% in ducks and 73.2% in geese. Among these isolates, the positive rate for the plasmid-mediated quinolone resistance (PMQR) determinant was 14.8% (181/1,221); the detection rate for qnrS1 was the highest (10.2%), followed by aac(6')-Ib-cr (4.5%) and qnrB2 (0.3%). The quinolone-resistance determining regions (QRDRs) analysis for the PMQR-positive isolates showed that the strains with mutations at codon 83 or 87 in GyrA were resistant to NAL. To the best of our knowledge, this is the first report of occurrence of qnrB2, qnrS1 and aac(6')-Ib-cr genes and high frequency (56.4%; 102/181) of mutation in gyrA or parC among PMQR-positive E. coli strains derived from diseased animals in Taiwan.
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Affiliation(s)
- Jih-Ching Yeh
- Department of Veterinary Medicine, College of Veterinary Medicine, National Chiayi University, Chiayi, Taiwan, ROC
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9
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Wyrsch ER, Roy Chowdhury P, Chapman TA, Charles IG, Hammond JM, Djordjevic SP. Genomic Microbial Epidemiology Is Needed to Comprehend the Global Problem of Antibiotic Resistance and to Improve Pathogen Diagnosis. Front Microbiol 2016; 7:843. [PMID: 27379026 PMCID: PMC4908116 DOI: 10.3389/fmicb.2016.00843] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2016] [Accepted: 05/22/2016] [Indexed: 11/18/2022] Open
Abstract
Contamination of waste effluent from hospitals and intensive food animal production with antimicrobial residues is an immense global problem. Antimicrobial residues exert selection pressures that influence the acquisition of antimicrobial resistance and virulence genes in diverse microbial populations. Despite these concerns there is only a limited understanding of how antimicrobial residues contribute to the global problem of antimicrobial resistance. Furthermore, rapid detection of emerging bacterial pathogens and strains with resistance to more than one antibiotic class remains a challenge. A comprehensive, sequence-based genomic epidemiological surveillance model that captures essential microbial metadata is needed, both to improve surveillance for antimicrobial resistance and to monitor pathogen evolution. Escherichia coli is an important pathogen causing both intestinal [intestinal pathogenic E. coli (IPEC)] and extraintestinal [extraintestinal pathogenic E. coli (ExPEC)] disease in humans and food animals. ExPEC are the most frequently isolated Gram negative pathogen affecting human health, linked to food production practices and are often resistant to multiple antibiotics. Cattle are a known reservoir of IPEC but they are not recognized as a source of ExPEC that impact human or animal health. In contrast, poultry are a recognized source of multiple antibiotic resistant ExPEC, while swine have received comparatively less attention in this regard. Here, we review what is known about ExPEC in swine and how pig production contributes to the problem of antibiotic resistance.
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Affiliation(s)
- Ethan R Wyrsch
- The ithree Institute, University of Technology Sydney, Sydney NSW, Australia
| | - Piklu Roy Chowdhury
- The ithree Institute, University of Technology Sydney, SydneyNSW, Australia; NSW Department of Primary Industries, Elizabeth Macarthur Agricultural Institute, SydneyNSW, Australia
| | - Toni A Chapman
- NSW Department of Primary Industries, Elizabeth Macarthur Agricultural Institute, Sydney NSW, Australia
| | - Ian G Charles
- Institute of Food Research, Norwich Research Park Norwich, UK
| | - Jeffrey M Hammond
- NSW Department of Primary Industries, Elizabeth Macarthur Agricultural Institute, Sydney NSW, Australia
| | - Steven P Djordjevic
- The ithree Institute, University of Technology Sydney, Sydney NSW, Australia
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Qin TT, Kang HQ, Ma P, Li PP, Huang LY, Gu B. SOS response and its regulation on the fluoroquinolone resistance. ANNALS OF TRANSLATIONAL MEDICINE 2016; 3:358. [PMID: 26807413 DOI: 10.3978/j.issn.2305-5839.2015.12.09] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Abstract
Bacteria can survive fluoroquinolone antibiotics (FQs) treatment by becoming resistant through a genetic change-mutation or gene acquisition. The SOS response is widespread among bacteria and exhibits considerable variation in its composition and regulation, which is repressed by LexA protein and derepressed by RecA protein. Here, we take a comprehensive review of the SOS gene network and its regulation on the fluoroquinolone resistance. As a unique survival mechanism, SOS may be an important factor influencing the outcome of antibiotic therapy in vivo.
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Affiliation(s)
- Ting-Ting Qin
- 1 Medical Technology Institute of Xuzhou Medical College, Xuzhou 221004, China ; 2 Department of Laboratory Medicine, Affiliated Hospital of Xuzhou Medical College, Xuzhou 221006, China
| | - Hai-Quan Kang
- 1 Medical Technology Institute of Xuzhou Medical College, Xuzhou 221004, China ; 2 Department of Laboratory Medicine, Affiliated Hospital of Xuzhou Medical College, Xuzhou 221006, China
| | - Ping Ma
- 1 Medical Technology Institute of Xuzhou Medical College, Xuzhou 221004, China ; 2 Department of Laboratory Medicine, Affiliated Hospital of Xuzhou Medical College, Xuzhou 221006, China
| | - Peng-Peng Li
- 1 Medical Technology Institute of Xuzhou Medical College, Xuzhou 221004, China ; 2 Department of Laboratory Medicine, Affiliated Hospital of Xuzhou Medical College, Xuzhou 221006, China
| | - Lin-Yan Huang
- 1 Medical Technology Institute of Xuzhou Medical College, Xuzhou 221004, China ; 2 Department of Laboratory Medicine, Affiliated Hospital of Xuzhou Medical College, Xuzhou 221006, China
| | - Bing Gu
- 1 Medical Technology Institute of Xuzhou Medical College, Xuzhou 221004, China ; 2 Department of Laboratory Medicine, Affiliated Hospital of Xuzhou Medical College, Xuzhou 221006, China
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Choi D, Chon JW, Kim HS, Kim DH, Lim JS, Yim JH, Seo KH. Incidence, Antimicrobial Resistance, and Molecular Characteristics of Nontyphoidal Salmonella Including Extended-Spectrum β-Lactamase Producers in Retail Chicken Meat. J Food Prot 2015; 78:1932-7. [PMID: 26555514 DOI: 10.4315/0362-028x.jfp-15-145] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
The present study was undertaken to determine the prevalence of Salmonella in 100 chicken carcass samples from five integrated broiler operation brands in Korea. Serotypes, antibiotic resistance patterns, extended-spectrum β-lactamase (ESBL) genotype, and clonal divergence using multilocus sequence typing of the isolated strains were analyzed. A total of 42 chicken samples were contaminated with nontyphoidal Salmonella (NTS) isolates: 16 isolates (38%) were Salmonella Virchow, 9 (21%) were Salmonella Bareilly, and 8 (19%) were Salmonella Infantis. A multidrug resistance (MDR; resistant to more than three classes of antibiotics) phenotype was observed in 29% of the isolates, which were resistant to five or more classes of antibiotics. The dominant MDR type was resistance to classes of penicillin, cephalosporins, aminoglycosides, quinolones, and tetracyclines. All the MDR isolates were positive for ESBL producers, and all but one (with the CTX-M-1 genotype) had the CTX-M-15 genotype. Multilocus sequence typing of the isolates revealed ST16 as the dominant sequence type; Salmonella Virchow, Salmonella Infantis, and Salmonella Richmond were all ST16, indicating a close genetic relationship between these serovars. This is the first study in Korea showing the CTX-M-1 type of NTS and the prevalence of ESBL-producing strains among NTS isolated from retail chicken meat. Our findings suggest that MDR Salmonella contamination is widely prevalent in retail chicken meat, and consumption of inadequately cooked products could lead to dissemination of NTS, which is hazardous to human health.
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Affiliation(s)
- Dasom Choi
- Center for Food Safety, College of Veterinary Medicine, Konkuk University, Hwayang-dong, Gwangjin-gu, Seoul 143-701, Republic of Korea
| | - Jung-Whan Chon
- U.S. Food and Drug Administration, National Center for Toxicological Research, Division of Microbiology, Jefferson, Arkansas 72079, USA
| | - Hong-Seok Kim
- Center for Food Safety, College of Veterinary Medicine, Konkuk University, Hwayang-dong, Gwangjin-gu, Seoul 143-701, Republic of Korea
| | - Dong-Hyeon Kim
- Center for Food Safety, College of Veterinary Medicine, Konkuk University, Hwayang-dong, Gwangjin-gu, Seoul 143-701, Republic of Korea
| | - Jong-Soo Lim
- Center for Food Safety, College of Veterinary Medicine, Konkuk University, Hwayang-dong, Gwangjin-gu, Seoul 143-701, Republic of Korea
| | - Jin-Hyeok Yim
- Center for Food Safety, College of Veterinary Medicine, Konkuk University, Hwayang-dong, Gwangjin-gu, Seoul 143-701, Republic of Korea
| | - Kun-Ho Seo
- Center for Food Safety, College of Veterinary Medicine, Konkuk University, Hwayang-dong, Gwangjin-gu, Seoul 143-701, Republic of Korea.
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Wasyl D. Prevalence and characterization of quinolone resistance mechanisms in commensal Escherichia coli isolated from slaughter animals in Poland, 2009-2012. Microb Drug Resist 2015; 20:544-9. [PMID: 25051094 DOI: 10.1089/mdr.2014.0061] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
The background of quinolone resistance was characterized in ciprofloxacin-resistant commensal Escherichia coli selected out of 3,551 isolates from slaughtered animals in Poland between 2009 and 2012. Plasmid-mediated determinants were suspected in 6.2% of the study group, ranging from 1.1% in cattle to 9.7% in turkeys. Polymerase chain reaction and sequencing identified up to four quinolone resistance-determining substitutions in gyrA (Ser83, Asp87) and parC (Ala56, Ser80). Plasmid-mediated mechanisms were identified as qnrS1 (or qnrS3, n=70, including six isolates with chromosomal mutations), qnrB19 (or qnrB10, n=19), and qnrB17 (n=1). All tested isolates were negative for qnrA, qnrC, qnrD, qepA, and aac(6')-Ib-cr. Still, there were several E. coli suspected for both plasmid- and chromosome-mediated resistance with unrevealed genetic background of the phenomenon. Since all tested isolates showed diverse XbaI-PFGE profiles, chromosome-encoded quinolone resistance does not result from the spread of a single resistant clone, however, it is rather due to antimicrobial pressure leading to the selection of random gyr and par mutants. It also favors the selection and spread of plasmids carrying predominant qnr genes, since the same determinants were found in Salmonella, isolated from similar sources. The identification of carrier plasmids and mitigation of their spread might be essential for sustainable quinolone usage in animal husbandry and efficient protection of human health.
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Affiliation(s)
- Dariusz Wasyl
- Department of Microbiology, National Veterinary Research Institute , Puławy, Poland
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Oh JY, Kwon YK, Tamang MD, Jang HK, Jeong OM, Lee HS, Kang MS. Plasmid-Mediated Quinolone Resistance in Escherichia coli Isolates from Wild Birds and Chickens in South Korea. Microb Drug Resist 2015. [PMID: 26207437 DOI: 10.1089/mdr.2015.0090] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
A total of 2,423 nonduplicate isolates of Escherichia coli recovered from wild birds (n=793) and chickens (n=1,630) in South Korea were investigated for plasmid-mediated quinolone resistance (PMQR) genes. Altogether, 56 isolates with PMQR genes were identified, including 25 (3.2%) from wild birds and 31 (1.9%) from chickens, which were further characterized using molecular methods. Among them, qnrS, aac(6')-Ib-cr, qnrB, and qepA genes were detected in 47 (1.9%), 6 (0.24%), 2 (0.08%), and 1 (0.04%) isolates, respectively. The most prevalent gene, qnrS, was identified in 21 (0.9%) and 26 (1.1%) isolates from wild birds and chickens, respectively. The qnrB gene was identified in two chicken isolates, which included qnrB19 and a novel qnrB44 gene. Plasmid isolation and Southern hybridization revealed that qnrS1 was located on a large (>200 kbp) plasmid. The spread of the PMQR genes was attributed to a combination of horizontal dissemination and clonal expansion. The horizontal dissemination of PMQR genes was mostly mediated by IncK plasmids. Molecular typing demonstrated that the majority of the PMQR-positive isolates were genetically diverse. Only one chicken isolate belonged to ST131, which harbored an additional CMY-2 gene. Our findings suggest that the wild birds could serve as reservoirs of PMQR genes and spread them over long distances through migration. To our knowledge, this is the first report of PMQR genes in Korean wild birds. This study also reports qnrS2, qnrB19, qnrB44, and qepA genes for the first time in animal E. coli isolates from South Korea.
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Affiliation(s)
- Jae-Young Oh
- 1 Department of Infectious Diseases and Avian Diseases, College of Veterinary Medicine and Korea Zoonosis Research Institute, Chonbuk National University , Iksan, South Korea
| | - Yong-Kuk Kwon
- 2 Avian Disease Division, Animal and Plant Quarantine Agency , Anyang, South Korea
| | - Migma Dorji Tamang
- 3 Bacterial Disease Division, Animal and Plant Quarantine Agency , Anyang, South Korea
| | - Hyung-Kwan Jang
- 1 Department of Infectious Diseases and Avian Diseases, College of Veterinary Medicine and Korea Zoonosis Research Institute, Chonbuk National University , Iksan, South Korea
| | - Ok-Mi Jeong
- 2 Avian Disease Division, Animal and Plant Quarantine Agency , Anyang, South Korea
| | - Hee-Soo Lee
- 2 Avian Disease Division, Animal and Plant Quarantine Agency , Anyang, South Korea
| | - Min-Su Kang
- 2 Avian Disease Division, Animal and Plant Quarantine Agency , Anyang, South Korea
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Kim S, Woo GJ. Prevalence and characterization of antimicrobial-resistant Escherichia coli isolated from conventional and organic vegetables. Foodborne Pathog Dis 2014; 11:815-21. [PMID: 25140978 DOI: 10.1089/fpd.2014.1771] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
To compare the characteristics and to identify the epidemiological relationships of Escherichia coli isolated from organic and conventional vegetables, the antimicrobial resistance and genetic properties of E. coli were investigated from 2010 to 2011. E. coli was isolated from 1 of 111 (0.9%) organic vegetables and from 20 of 225 (8.9%) conventional vegetables. The majority of strains were isolated from the surrounding farming environment (n=27/150 vs. 49/97 in organic vs. conventional samples). The majority of the vegetable strains were isolated from the surrounding farming environments. E. coli isolated from organic vegetables showed very low antimicrobial resistance rates except for cephalothin, ranging from 0% to 17.9%, while the resistance rates to cephalothin (71%) were extremely high in both groups. E. coli isolates expressed various resistance genes, which most commonly included blaTEM, tet(A), strA, strB, and qnrS. However, none of the isolates harbored tet(D), tet(E), tet(K), tet(L), tet(M), or qnrA. The transferability of tet gene, tet(A), and tet(B) was identified in tetracycline-resistant E. coli, and the genetic relationship was confirmed in a few cases from different sources. With regard to the lower antimicrobial resistance found in organic produce, this production mode seems able to considerably reduce the selection of antimicrobial-resistant bacteria on vegetables.
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Affiliation(s)
- Sara Kim
- Laboratory of Food Safety and Evaluation, Department of Food Bioscience and Technology, Korea University , Seoul, Korea
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Expansion and evolution of a virulent, extensively drug-resistant (polymyxin B-resistant), QnrS1-, CTX-M-2-, and KPC-2-producing Klebsiella pneumoniae ST11 international high-risk clone. J Clin Microbiol 2014; 52:2530-5. [PMID: 24808234 DOI: 10.1128/jcm.00088-14] [Citation(s) in RCA: 92] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
In this study, we report the early expansion, evolution, and characterization of a multiresistant Klebsiella pneumoniae clone that was isolated with increasing frequency from inpatients in a tertiary-care university hospital in Brazil. Seven carbapenem- and quinolone-resistant and polymyxin B-susceptible or -resistant K. pneumoniae isolates isolated between December 2012 and February 2013 were investigated. Beta-lactamase- and plasmid-mediated quinolone resistance (PMQR)-encoding genes and the genetic environment were investigated using PCR, sequencing, and restriction fragment length polymorphism (RFLP). Clonal relatedness was established using XbaI-pulsed-field gel electrophoresis (PFGE), multilocus sequence typing (MLST), and phylogenetic group characterization. Plasmid analyses included PCR-based replicon typing (PBRT) and hybridization of the S1-PFGE product, plasmid MLST, and conjugation experiments. Virulence potential was assessed by PCR by searching for 10 virulence factor-encoding genes (ureA, fimH, kfuBC, uge, wabG, magA, mrkD, allS, rmpA, and cf29a) and by phenotypic tests to analyze the hypermucoviscous phenotype. The genetic context of a multidrug-resistant and extensively drug-resistant K. pneumoniae ST11-KpI clone harboring IncFIIk-Tn4401a-blaKPC-2, qnrS1, and blaCTX-M-2 was found. Moreover, three isolates displayed high resistance to polymyxin B (MICs = 32, 32, and 128 mg/liter) as well as mucous and hypermucoviscous phenotypes. These bacteria also harbored ureA, fimH, uge, wabG, and mrkD, which code for virulence factors associated with binding, biofilm formation, and the ability to colonize and escape from phagocytosis. Our study describes the association of important coresistance and virulence factors in the K. pneumoniae ST11 international high-risk clone, which makes this pathogen successful at infections and points to the quick expansion and evolution of this multiresistant and virulent clone, leading to a pandrug-resistant phenotype and persistent bacteria in a Brazilian hospital.
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