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Leszczyńska K, Święcicka I, Daniluk T, Lebensztejn D, Chmielewska-Deptuła S, Leszczyńska D, Gawor J, Kliber M. Escherichia albertii as a Potential Enteropathogen in the Light of Epidemiological and Genomic Studies. Genes (Basel) 2023; 14:1384. [PMID: 37510288 PMCID: PMC10379040 DOI: 10.3390/genes14071384] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2023] [Revised: 06/09/2023] [Accepted: 06/23/2023] [Indexed: 07/30/2023] Open
Abstract
Escherichia albertii is a new enteropathogen of humans and animals. The aim of the study was to assess the prevalence and pathogenicity of E. albertii strains isolated in northeastern Poland using epidemiological and genomic studies. In 2015-2018, a total of 1154 fecal samples from children and adults, 497 bird droppings, 212 food samples, 92 water samples, and 500 lactose-negative E. coli strains were tested. A total of 42 E. albertii strains were isolated. The PCR method was suitable for their rapid identification. In total, 33.3% of E. albertii isolates were resistant to one antibiotic, and 16.7% to two. Isolates were sensitive to cefepime, imipenem, levofloxacin, gentamicin, trimethoprim/sulfamethoxazole, and did not produce ESBL β-lactamases. High genetic variability of E. albertii has been demonstrated. In the PFGE method, 90.5% of the strains had distinct pulsotypes. In MLST typing, 85.7% of strains were assigned distinct sequence types (STs), of which 64% were novel ST types. Cytolethal distending toxin (CDT) and Paa toxin genes were found in 100% of E. albertii isolates. Genes encoding toxins, IbeA, CdtB type 2, Tsh and Shiga (Stx2f), were found in 26.2%, 9.7%, 1.7%, and 0.4% of E. albertii isolates, respectively. The chromosome size of the tested strains ranged from 4,573,338 to 5,141,010 bp (average 4,784,003 bp), and at least one plasmid was present in all strains. The study contributes to a more accurate assessment of the genetic diversity of E. albertii and the potential threat it poses to public health.
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Affiliation(s)
- Katarzyna Leszczyńska
- Department of Medical Microbiology and Nanobiomedical Enginnering, Medical University of Bialystok, ul. Mickiewicza 2C, 15-222 Bialystok, Poland
| | - Izabela Święcicka
- Department of Microbiology and Biotechnology, University of Bialystok, ul. Ciołkowskiego 1J, 15-245 Białystok, Poland
| | - Tamara Daniluk
- Department of Medical Microbiology and Nanobiomedical Enginnering, Medical University of Bialystok, ul. Mickiewicza 2C, 15-222 Bialystok, Poland
| | - Dariusz Lebensztejn
- Department of Pediatrics, Gastroenterology, Hepatology, Nutrition, Allergology and Pulmonology, Medical University of Bialystok, ul. Waszyngtona 17, 15-274 Bialystok, Poland
| | - Sylwia Chmielewska-Deptuła
- Department of Medical Microbiology and Nanobiomedical Enginnering, Medical University of Bialystok, ul. Mickiewicza 2C, 15-222 Bialystok, Poland
| | - Dorota Leszczyńska
- Department of Medical Microbiology and Nanobiomedical Enginnering, Medical University of Bialystok, ul. Mickiewicza 2C, 15-222 Bialystok, Poland
| | - Jan Gawor
- DNA Sequecing and Synthesis Facility, Institute of Biochemistry and Biophysics, Polish Academy of Sciences, ul. Pawińskiego 5A, 02-106 Warszawa, Poland
| | - Małgorzata Kliber
- Department of Medical Microbiology and Nanobiomedical Enginnering, Medical University of Bialystok, ul. Mickiewicza 2C, 15-222 Bialystok, Poland
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Arai S, Ooka T, Shibata M, Nagai Y, Tokoi Y, Nagaoka H, Maeda R, Tsuchiya A, Kojima Y, Ohya K, Ohnishi T, Konishi N, Ohtsuka K, Hara-Kudo Y. Development of a Novel Real-Time Polymerase Chain Reaction Assay to Detect Escherichia albertii in Chicken Meat. Foodborne Pathog Dis 2022; 19:823-829. [PMID: 36322900 DOI: 10.1089/fpd.2022.0042] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Escherichia albertii is an emerging enteropathogen. Several foodborne outbreaks of E. albertii have been reported in Japan; however, foods associated with most outbreaks remain unidentified. Therefore, polymerase chain reaction (PCR) assays detecting E. albertii specifically and sensitively are required. Primers and probe for real-time PCR assays targeting E. albertii-specific gene (EA-rtPCR) was designed. With 74 strains, including 43 E. albertii strains and several of its close relatives, EA-rtPCR specifically amplified E. albertii; therefore, the sensitivity of EA-rtPCR was then evaluated. The detection limits were 2.8 and 2.0-3.2 log colony-forming unit (CFU)/mL for E. albertii culture and enriched chicken culture inoculated with the pathogen, respectively. In addition, E. albertii was detected from 25 g of chicken meat inoculated with 0.1 log CFU of the pathogen by EA-rtPCR. The detection of E. albertii from chicken meat by EA-rtPCR was also evaluated by comparing with the nested-PCR assay, and 28 retail chicken meat and 193 dissected body parts from 21 chicken carcass were tested. One and three chicken meat were positive in the nested-PCR assay and EA-rtPCR, respectively. Fourteen carcasses had at least one body part that was positive for EA-rtPCR, and 36 and 48 samples were positive for the nested-PCR assay and EA-rtPCR, respectively. A total of 37 strains of E. albertii were isolated from seven PCR-positive samples obtained from six chicken carcass. All E. albertii isolates harbored eae gene, and were classified as E. albertii O-genotype (EAOg)3 or EAOg4 by EAO-genotyping. The EA-rtPCR developed in this study has potential to improve E. albertii detection in food and advance research on E. albertii infection.
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Affiliation(s)
- Sakura Arai
- Division of Microbiology, National Institute of Health Sciences, Kawasaki, Japan
| | - Tadasuke Ooka
- Department of Microbiology, Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima, Japan
| | - Mizuha Shibata
- Shizuoka City Institute of Environmental Sciences and Public Health, Shizuoka, Japan
| | - Yuhki Nagai
- Division of Microbiology, Mie Prefecture Health and Environment Research Institute, Yokkaichi, Japan
| | - Yuki Tokoi
- Utsunomiya City Institute of Public Health and Environment, Utsunomiya, Japan
| | - Hiromi Nagaoka
- Shizuoka Institute of Environment and Hygiene, Fujieda, Japan
| | - Rika Maeda
- Department of Microbiology, Kumamoto Prefectural Institute of Public-Health and Environmental Science, Uto, Japan
| | - Akihiko Tsuchiya
- Life Science Division, Saitama City Institute of Health Science and Research, Saitama, Japan
| | - Yuka Kojima
- Division of Microbiology, Kawasaki City Institute for Public Health, Kawasaki, Japan
| | - Kenji Ohya
- Division of Microbiology, National Institute of Health Sciences, Kawasaki, Japan
| | - Takahiro Ohnishi
- Division of Microbiology, National Institute of Health Sciences, Kawasaki, Japan
| | - Noriko Konishi
- Department of Microbiology, Tokyo Metropolitan Institute of Public Health, Tokyo, Japan
| | | | - Yukiko Hara-Kudo
- Division of Microbiology, National Institute of Health Sciences, Kawasaki, Japan
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Barmettler K, Biggel M, Treier A, Muchaamba F, Vogler BR, Stephan R. Occurrence and Characteristics of Escherichia albertii in Wild Birds and Poultry Flocks in Switzerland. Microorganisms 2022; 10:microorganisms10112265. [PMID: 36422334 PMCID: PMC9699108 DOI: 10.3390/microorganisms10112265] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2022] [Revised: 11/06/2022] [Accepted: 11/08/2022] [Indexed: 11/16/2022] Open
Abstract
Escherichia albertii, a zoonotic pathogen, has sporadically been associated with infectious diarrhea in humans. Poultry and wild birds are considered potential reservoirs. We assessed the occurrence of E. albertii in 280 fecal samples from wild birds (n = 130) and pooled fecal samples collected at slaughterhouse level from poultry flocks (n = 150) in Switzerland. Using an E. albertii-specific PCR targeting the Eacdt gene, 23.8% (31/130) of the samples from wild birds, but not from the pooled poultry fecal samples, tested positive for Eacdt. The positive samples originated from 11 bird species belonging to eight families. Strain isolation was attempted on the PCR-positive samples by subculturing the broth cultures onto xylose–MacConkey plates. Isolation was possible on 12 of the 31 Eacdt-PCR-positive samples. Whole-genome sequencing revealed that the strains belonged to nine distinct sequence types, with ST13420 and ST5967 being represented by two and three isolates, respectively. All strains harbored the eae gene, while two strains were also positive for stx2f. Our study thus shows that E. albertii is present in the Swiss wild bird population, which can potentially act as a source of this pathogen to humans, other animals, and the environment.
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Affiliation(s)
- Karen Barmettler
- Institute for Food Safety and Hygiene, Vetsuisse Faculty, University of Zurich, 8057 Zurich, Switzerland
| | - Michael Biggel
- Institute for Food Safety and Hygiene, Vetsuisse Faculty, University of Zurich, 8057 Zurich, Switzerland
| | - Andrea Treier
- Institute for Food Safety and Hygiene, Vetsuisse Faculty, University of Zurich, 8057 Zurich, Switzerland
| | - Francis Muchaamba
- Institute for Food Safety and Hygiene, Vetsuisse Faculty, University of Zurich, 8057 Zurich, Switzerland
| | - Barbara Renate Vogler
- National Reference Centre for Poultry and Rabbit Diseases (NRGK), Institute of Food Safety and Hygiene, Vetsuisse Faculty, University of Zurich, 8057 Zurich, Switzerland
| | - Roger Stephan
- Institute for Food Safety and Hygiene, Vetsuisse Faculty, University of Zurich, 8057 Zurich, Switzerland
- Correspondence:
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Hirose S, Nakamura Y, Arai S, Hara-Kudo Y. The Development and Evaluation of a Selective Enrichment for the Detection of Escherichia albertii in Food. Foodborne Pathog Dis 2022; 19:704-712. [DOI: 10.1089/fpd.2022.0048] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- Shouhei Hirose
- Division of Microbiology, National Institute of Health Sciences, Kawasaki, Japan
| | | | - Sakura Arai
- Division of Microbiology, National Institute of Health Sciences, Kawasaki, Japan
| | - Yukiko Hara-Kudo
- Division of Microbiology, National Institute of Health Sciences, Kawasaki, Japan
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Muchaamba F, Barmettler K, Treier A, Houf K, Stephan R. Microbiology and Epidemiology of Escherichia albertii—An Emerging Elusive Foodborne Pathogen. Microorganisms 2022; 10:microorganisms10050875. [PMID: 35630320 PMCID: PMC9145129 DOI: 10.3390/microorganisms10050875] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2022] [Revised: 04/19/2022] [Accepted: 04/19/2022] [Indexed: 02/03/2023] Open
Abstract
Escherichia albertii, a close relative of E. coli, is an emerging zoonotic foodborne pathogen associated with watery diarrhea mainly in children and immunocompromised individuals. E. albertii was initially classified as eae-positive Hafnia alvei, however, as more genetic and biochemical information became available it was reassigned to its current novel taxonomy. Its infections are common under conditions of poor hygiene with confirmed transmission via contaminated water and food, mainly poultry-based products. This pathogen has been isolated from various domestic and wild animals, with most isolates being derived from birds, implying that birds among other wild animals might act as its reservoir. Due to the absence of standardized isolation and identification protocols, E. albertii can be misidentified as other Enterobacteriaceae. Exploiting phenotypes such as its inability to ferment rhamnose and xylose and PCR assays targeting E. albertii-specific genes such as the cytolethal distending toxin and the DNA-binding transcriptional activator of cysteine biosynthesis encoding genes can be used to accurately identify this pathogen. Several gaps exist in our knowledge of E. albertii and need to be bridged. A deeper understanding of E. albertii epidemiology and physiology is required to allow the development of effective measures to control its transmission and infections. Overall, current data suggest that E. albertii might play a more significant role in global infectious diarrhea cases than previously assumed and is often overlooked or misidentified. Therefore, simple, and efficient diagnostic tools that cover E. albertii biodiversity are required for effective isolation and identification of this elusive agent of diarrhea.
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Affiliation(s)
- Francis Muchaamba
- Institute for Food Safety and Hygiene, Vetsuisse Faculty, University of Zurich, 8057 Zurich, Switzerland; (K.B.); (A.T.); (R.S.)
- Correspondence:
| | - Karen Barmettler
- Institute for Food Safety and Hygiene, Vetsuisse Faculty, University of Zurich, 8057 Zurich, Switzerland; (K.B.); (A.T.); (R.S.)
| | - Andrea Treier
- Institute for Food Safety and Hygiene, Vetsuisse Faculty, University of Zurich, 8057 Zurich, Switzerland; (K.B.); (A.T.); (R.S.)
| | - Kurt Houf
- Department of Veterinary and Biosciences, Faculty of Veterinary Medicine, Ghent University, 9820 Merelbeke, Belgium;
| | - Roger Stephan
- Institute for Food Safety and Hygiene, Vetsuisse Faculty, University of Zurich, 8057 Zurich, Switzerland; (K.B.); (A.T.); (R.S.)
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Arai S, Yamaya S, Ohtsuka K, Konishi N, Obata H, Ooka T, Hirose S, Kai A, Hara-Kudo Y. Detection of Escherichia albertii in Retail Oysters. J Food Prot 2022; 85:173-179. [PMID: 34591074 DOI: 10.4315/jfp-21-222] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2021] [Accepted: 09/29/2021] [Indexed: 11/11/2022]
Abstract
ABSTRACT Escherichia albertii is an emerging foodborne pathogen. Owing to its distribution in river water, it is important to determine the presence of E. albertii in aquaculture-related foods. In this study, we investigated the distribution of E. albertii in retail oyster samples. A total of 427 raw oyster samples (385 Pacific oysters and 42 Japanese rock oysters) were enriched in modified Escherichia coli broth (mEC) or mEC supplemented with novobiocin (NmEC) at 42°C. The cultures were used for E. albertii-specific nested PCR assay, as well as for E. albertii isolation using deoxycholate hydrogen sulfide lactose agar (DHL), DHL supplemented with rhamnose and xylose, and MacConkey agar supplemented with rhamnose and xylose. The population of E. albertii in nested PCR-positive samples was determined using the most-probable-number (MPN) method. E. albertii isolates were subjected to biochemical and genetic characterization. E. albertii was detected in 5 (1.6%) of 315 Pacific oyster samples (one piece each), 2 (2.9%) of 70 Pacific oyster samples (25 g each), and 2 (4.8%) of 42 Japanese rock oyster samples procured from four geographically distinct regions. A total of 64 E. albertii strains were isolated from eight of the nine nested PCR assay-positive oyster samples, and the MPN value was under the detection limit (<3 MPN/10 g). A specific season or month for detecting E. albertii was not observed in this study, suggesting that the pathogen is present in seawater. All the E. albertii isolates, except one, were positive for the virulence factor eae, indicating that these isolates have the potential to infect humans. HIGHLIGHTS
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Affiliation(s)
- Sakura Arai
- Division of Microbiology, National Institute of Health Sciences, 3-25-26, Tonomachi, Kawasaki-ku, Kawasaki, Kanagawa 210-9501, Japan
| | - Satoko Yamaya
- Miyagi Prefectural Institute of Public Health and Environment, 4-7-2, Saiwai-cho, Miyagino-ku, Sendai 983-0836, Japan
| | - Kayoko Ohtsuka
- Saitama Institute of Public Health, 410-1, Ewai, Yoshimi-machi, Hiki-gun, Saitama 355-0133, Japan
| | - Noriko Konishi
- Tokyo Metropolitan Institute of Public Health, 3-24-1, Hyakunin-cho, Shinjuku-ku, Tokyo 169-0073, Japan
| | - Hiromi Obata
- Tokyo Metropolitan Institute of Public Health, 3-24-1, Hyakunin-cho, Shinjuku-ku, Tokyo 169-0073, Japan
| | - Tadasuke Ooka
- Department of Microbiology, Graduate School of Medical and Dental Sciences, Kagoshima University, 8-35-1, Sakuragaoka, Kagoshima city, Kagoshima 890-8544, Japan
| | - Shouhei Hirose
- Division of Microbiology, National Institute of Health Sciences, 3-25-26, Tonomachi, Kawasaki-ku, Kawasaki, Kanagawa 210-9501, Japan
| | - Akemi Kai
- Japan Food Hygiene Association, 2-5-47, Tadao, Machida-city, Tokyo 194-0035, Japan
| | - Yukiko Hara-Kudo
- Division of Microbiology, National Institute of Health Sciences, 3-25-26, Tonomachi, Kawasaki-ku, Kawasaki, Kanagawa 210-9501, Japan
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Sakakida N, Sato M, Kando S, Kashima K, Shimada S, Ishii R. [Prevalence of Foodborne Pathogens in Retail Meat in Saitama, Japan]. SHOKUHIN EISEIGAKU ZASSHI. JOURNAL OF THE FOOD HYGIENIC SOCIETY OF JAPAN 2022; 63:151-157. [PMID: 36047091 DOI: 10.3358/shokueishi.63.151] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
We investigated the prevalence of Campylobacter jejuni, Campylobacter coli, Salmonella, enterohemorrhagic Escherichia coli, enterotoxigenic Escherichia coli, Yersinia enterocolitica, and Escherichia albertii in domestic chicken and pork sold at retail stores in Saitama Prefecture, Japan. Campylobacter was detected in 35.7% (60/168) of chicken samples and 7.3% (14/190) of pork samples. C. jejuni and C. coli were predominant in chicken and pork, respectively. Salmonella was found in 58.1% (100/172) of chicken samples and 19.9% (41/206) of pork samples. Moreover, Salmonella Schwarzengrund was the major serovar observed in chicken isolates, whereas S. Typhimurium monophasic variant was in pork isolates. Furthermore, ETEC was found in 0.6% (1/160) of chicken samples and 2.4% (5/206) of pork samples. Y. enterocolitica was absent from all (83/83) chicken samples but was present in 9.3% (18/193) of pork samples, with a prevalence in pork tongues as high as 21.0% (13/62 samples). However, EHEC and E. albertii were not detected in our study. Therefore, the results of this study indicate that chicken was highly contaminated with Campylobacter sp. and Salmonella, and pork was with Y. enterocolitica serotype O3, Campylobacter sp., Salmonella, and ETEC.
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Luo L, Wang H, Payne MJ, Liang C, Bai L, Zheng H, Zhang Z, Zhang L, Zhang X, Yan G, Zou N, Chen X, Wan Z, Xiong Y, Lan R, Li Q. Comparative genomics of Chinese and international isolates of Escherichia albertii: population structure and evolution of virulence and antimicrobial resistance. Microb Genom 2021; 7. [PMID: 34882085 PMCID: PMC8767325 DOI: 10.1099/mgen.0.000710] [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] [Indexed: 11/22/2022] Open
Abstract
Escherichia albertii is a recently recognized species in the genus Escherichia that causes diarrhoea. The population structure, genetic diversity and genomic features have not been fully examined. Here, 169 E. albertii isolates from different sources and regions in China were sequenced and combined with 312 publicly available genomes (from additional 14 countries) for genomic analyses. The E. albertii population was divided into two clades and eight lineages, with lineage 3 (L3), L5 and L8 more common in China. Clinical isolates were observed in all clades/lineages. Virulence genes were found to be distributed differently among lineages: subtypes of the intimin encoding gene eae and the cytolethal distending toxin gene cdtB were lineage associated, and the second type three secretion system (ETT2) island was truncated in L3 and L6. Seven new eae subtypes and one new cdtB subtype (cdtB-VI) were identified. Alarmingly, 85.9 % of the Chinese E. albertii isolates were predicted to be multidrug-resistant (MDR) with 35.9 % harbouring genes capable of conferring resistance to 10 to 14 different drug classes. The majority of the MDR isolates were of poultry source from China and belonged to four sequence types (STs) [ST4638, ST4479, ST4633 and ST4488]. Thirty-four plasmids with some carrying MDR and virulence genes, and 130 prophages were identified from 17 complete E. albertii genomes. The 130 intact prophages were clustered into five groups, with group five prophages harbouring more virulence genes. We further identified three E. albertii specific genes as markers for the identification of this species. Our findings provided fundamental insights into the population structure, virulence variation and drug resistance of E. albertii.
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Affiliation(s)
- Lijuan Luo
- School of Biotechnology and Biomolecular Sciences, University of New South Wales, Sydney, New South Wales, Australia
| | - Hong Wang
- Zigong Center for Disease Control and Prevention, Zigong, Sichuan, PR China
| | - Michael J Payne
- School of Biotechnology and Biomolecular Sciences, University of New South Wales, Sydney, New South Wales, Australia
| | - Chelsea Liang
- School of Biotechnology and Biomolecular Sciences, University of New South Wales, Sydney, New South Wales, Australia
| | - Li Bai
- Division I of Risk Assessment, National Health Commission Key Laboratory of Food Safety Risk Assessment, Food Safety Research Unit (2019RU014) of Chinese Academy of Medical Science, China National Center for Food Safety Risk Assessment, Beijing, PR China
| | - Han Zheng
- State Key Laboratory of Infectious Disease Prevention and Control, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, PR China
| | - Zhengdong Zhang
- Zigong Center for Disease Control and Prevention, Zigong, Sichuan, PR China
| | - Ling Zhang
- Zigong Center for Disease Control and Prevention, Zigong, Sichuan, PR China
| | - Xiaomei Zhang
- School of Biotechnology and Biomolecular Sciences, University of New South Wales, Sydney, New South Wales, Australia
| | - Guodong Yan
- Zigong Center for Disease Control and Prevention, Zigong, Sichuan, PR China
| | - Nianli Zou
- Zigong Center for Disease Control and Prevention, Zigong, Sichuan, PR China
| | - Xi Chen
- Zigong Center for Disease Control and Prevention, Zigong, Sichuan, PR China
| | - Ziting Wan
- Zigong Center for Disease Control and Prevention, Zigong, Sichuan, PR China
| | - Yanwen Xiong
- State Key Laboratory of Infectious Disease Prevention and Control, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, PR China
| | - Ruiting Lan
- School of Biotechnology and Biomolecular Sciences, University of New South Wales, Sydney, New South Wales, Australia
| | - Qun Li
- Zigong Center for Disease Control and Prevention, Zigong, Sichuan, PR China
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Wakabayashi Y, Seto K, Kanki M, Harada T, Kawatsu K. Proposal of a novel selective enrichment broth, NCT-mTSB, for isolation of Escherichia albertii from poultry samples. J Appl Microbiol 2021; 132:2121-2130. [PMID: 34735750 DOI: 10.1111/jam.15353] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2021] [Revised: 10/05/2021] [Accepted: 10/29/2021] [Indexed: 11/27/2022]
Abstract
AIMS Escherichia albertii is an emerging diarrheagenic pathogen causing food- and water-borne infection in humans. However, no selective enrichment broths for E. albertii have ever been reported. In this study, we tested several basal media, selective supplements and culture conditions which enabled selective enrichment of E. albertii. METHODS AND RESULTS We developed a selective enrichment broth, novobiocin-cefixime-tellurite supplemented modified tryptic soy broth (NCT-mTSB). NCT-mTSB supported the growth of 22 E. albertii strains, while inhibited growth of other Enterobacteriaceae at 37°C, except for Escherichia coli and Shigella spp. Enrichment of E. albertii was improved further by growth at 44°C, a temperature that suppresses growth of several strains of E. coli/Shigella. Combined use of NCT-mTSB with XR-DH-agar, xylose-rhamnose supplemented deoxycholate hydrogen sulphide agar, enabled isolation of E. albertii when at least 1 CFU of the bacterium was present per gram of chicken meat. This level of enrichment was superior to those obtained using buffered peptone water, modified-EC broth, or mTSB (with novobiocin). CONCLUSIONS Novobiocin-cefixime-tellurite supplemented modified tryptic soy broth enabled effective enrichment of E. albertii from poultry samples and was helpful for isolation of this bacterium. SIGNIFICANCE AND IMPACT OF STUDY To our knowledge, this is the first report of selective enrichment of E. albertii from poultry samples.
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Affiliation(s)
- Yuki Wakabayashi
- Bacteriology Section, Division of Microbiology, Osaka Institute of Public Health, Osaka, Japan
| | - Kazuko Seto
- Quality Assurance Unit, Osaka Institute of Public Health, Osaka, Japan
| | - Masashi Kanki
- Bacteriology Section, Division of Microbiology, Osaka Institute of Public Health, Osaka, Japan
| | - Tetsuya Harada
- Bacteriology Section, Division of Microbiology, Osaka Institute of Public Health, Osaka, Japan
| | - Kentaro Kawatsu
- Bacteriology Section, Division of Microbiology, Osaka Institute of Public Health, Osaka, Japan
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Hinenoya A, Awasthi SP, Yasuda N, Nagano K, Hassan J, Takehira K, Hatanaka N, Saito S, Watabe T, Yoshizawa M, Inoue H, Yamasaki S. Detection, isolation and molecular characterization of Escherichia albertii in wild birds in West Japan. Jpn J Infect Dis 2021; 75:156-163. [PMID: 34470969 DOI: 10.7883/yoken.jjid.2021.355] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Escherichia albertii is an emerging zoonotic foodborne pathogen. Several outbreaks of E. albertii have occurred particularly in Japan. Although birds have been considered as one of the most important reservoirs of this bacterium, information regarding the prevalence in birds is still scanty. We performed a survey of E. albertii in wild birds in Japan, and examined characteristics of the isolates. E. albertii specific gene was detected in 5 cloacal swabs out of 156 birds by PCR. Four E. albertii were isolated from a swallow with 2 different E. albertii strains and 2 pigeons in a flock by XRM-MacConkey agar. These isolates were assigned to biogroup 3, shown no resistance to any antimicrobials tested, and classified into 2 EAO-genotypes (EAOg2 and EAOg33) and untypable. Similar to clinical E. albertii strains, these isolates carried virulence genes including eae (n=4), paa (n=4), Eccdt-I (n=2) and stx2f (n=1) in addition to Eacdt. Interestingly, stx2f genes in a strain were located on an inducible bacteriophage, which can confer the ability to produce Stx2f to E. coli. In conclusion, Japanese wild birds carried E. albertii at the similar levels to the reported prevalence in birds. These isolates may have a potential to cause gastroenteritis in humans.
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Affiliation(s)
- Atsushi Hinenoya
- Graduate School of Life and Environmental Sciences, Osaka Prefecture University, Japan.,School of Life and Environmental Sciences, Osaka Prefecture University, Japan.,Asian Health Science Research Institute, Osaka Prefecture University, Japan.,Osaka International Research Center for Infectious Diseases, Osaka Prefecture University, Japan
| | - Sharda Prasad Awasthi
- Graduate School of Life and Environmental Sciences, Osaka Prefecture University, Japan.,Asian Health Science Research Institute, Osaka Prefecture University, Japan.,Osaka International Research Center for Infectious Diseases, Osaka Prefecture University, Japan
| | - Noritomo Yasuda
- Graduate School of Life and Environmental Sciences, Osaka Prefecture University, Japan
| | - Keigo Nagano
- School of Life and Environmental Sciences, Osaka Prefecture University, Japan
| | - Jayedul Hassan
- Graduate School of Life and Environmental Sciences, Osaka Prefecture University, Japan
| | - Keiji Takehira
- Graduate School of Life and Environmental Sciences, Osaka Prefecture University, Japan
| | - Noritoshi Hatanaka
- Graduate School of Life and Environmental Sciences, Osaka Prefecture University, Japan.,School of Life and Environmental Sciences, Osaka Prefecture University, Japan.,Asian Health Science Research Institute, Osaka Prefecture University, Japan.,Osaka International Research Center for Infectious Diseases, Osaka Prefecture University, Japan
| | | | | | | | | | - Shinji Yamasaki
- Graduate School of Life and Environmental Sciences, Osaka Prefecture University, Japan.,School of Life and Environmental Sciences, Osaka Prefecture University, Japan.,Asian Health Science Research Institute, Osaka Prefecture University, Japan.,Osaka International Research Center for Infectious Diseases, Osaka Prefecture University, Japan
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11
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Arai S, Ohtsuka K, Konishi N, Ohya K, Konno T, Tokoi Y, Nagaoka H, Asano Y, Maruyama H, Uchiyama H, Takara T, Hara-Kudo Y. Evaluating Methods for Detecting Escherichia albertii in Chicken Meat. J Food Prot 2021; 84:553-562. [PMID: 33159453 DOI: 10.4315/jfp-20-206] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2020] [Accepted: 11/06/2020] [Indexed: 11/11/2022]
Abstract
ABSTRACT Escherichia albertii is an emerging foodborne pathogen. The source of the E. albertii infection in most foodborne outbreaks is unknown because E. albertii is difficult to isolate from suspected food or water. E. albertii has a broad host range among birds and can be isolated from chicken meat. In this study, PCR assay, enrichment, and isolation conditions for detecting E. albertii in chicken meat were evaluated. The growth of 47 E. albertii strains isolated in Japan between 1994 and 2018 and a type strain was evaluated in modified EC broth (mEC) and mEC supplemented with novobiocin (NmEC) and on media containing carbohydrates. The enzyme used for the nested PCR, the enrichment conditions, the most-probable-number (MPN) method, and agar media were also evaluated with chicken meat. To distinguish E. albertii from presumptive non-E. albertii bacteria, desoxycholate hydrogen sulfide lactose agar (DHL), MacConkey agar (MAC), and these agars supplemented with rhamnose and xylose (RX-DHL and RX-MAC, respectively) were used. All E. albertii strains grew in mEC and NmEC at both 36 and 42°C and did not utilize rhamnose, sucrose, or xylose. Both the first and nested PCRs with TaKaRa Ex Taq, which was 10 to 100 times more active than the other enzymes, produced positive results in enrichment culture of 25 g of chicken meat inoculated with >20 CFU of E. albertii and incubated in mEC and NmEC at 42°C for 22 ± 2 h. Thus, the first PCR was sensitive enough to detect E. albertii in chicken meat. The MPN values in mEC and NmEC were 0.5- and 2.3-fold higher than the original inoculated bacterial levels, respectively. E. albertii in chicken meat was more efficiently isolated with enrichment in NmEC (70.1 to 100%) and plating onto RX-DHL (85.4%) and RX-MAC (100%) compared with enrichment in mEC (53.5 to 83.3%) and plating onto DHL (70.1%) and MAC (92.4%). Thus, optimized conditions for the surveillance of E. albertii contamination in food and investigations of E. albertii outbreaks, including the infectious dose, were clarified. HIGHLIGHTS
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Affiliation(s)
- Sakura Arai
- Division of Microbiology, National Institute of Health Sciences, 3-25-26, Tonomachi, Kawasaki-ku, Kawasaki, Kanagawa 210-9501, Japan.,(ORCID: https://orcid.org/0000-0001-6572-1800 [S.A.])
| | - Kayoko Ohtsuka
- Saitama Institute of Public Health, 410-1, Ewai, Yoshimi-machi, Hiki-gun, Saitama 355-0133, Japan
| | - Noriko Konishi
- Tokyo Metropolitan Institute of Public Health, 3-24-1, Hyakunin-cho, Shinjuku, Tokyo 169-0073, Japan
| | - Kenji Ohya
- Division of Microbiology, National Institute of Health Sciences, 3-25-26, Tonomachi, Kawasaki-ku, Kawasaki, Kanagawa 210-9501, Japan
| | - Takayuki Konno
- Akita Prefectural Research Center for Public Health and Environment, 6-6, Senshukubota-machi, Akita 010-0874, Japan
| | - Yuki Tokoi
- Utsunomiya City Institute of Public Health and Environment, Takebayashi-machi, Utsunomiya, Tochigi 321-0974, Japan
| | - Hiromi Nagaoka
- Shizuoka Institute of Environment and Hygiene, 4-27-2, Kitaandou, Aoi-ku, Shizuoka 420-8637, Japan
| | - Yukiko Asano
- Ehime Prefectural Institute of Public Health and Environmental Science, 8-234, Sanbancho, Matsuyama, Ehime 790-0003, Japan
| | - Hiroyuki Maruyama
- Fukuoka City Institute of Health and Environment, 2-1-34 Jigyohama, Chuo-ku, Fukuoka 810-0065, Japan
| | - Hiroko Uchiyama
- Miyazaki Prefectural Institute for Public Health and Environment, 2-3-2 Gakuenkibanadai-Nishi, Miyazaki 889-2155, Japan
| | - Takatoshi Takara
- Okinawa Prefectural Institute of Health and Environment, 17-1 Kanekadan, Uruma-shi, Okinawa 904-2241, Japan
| | - Yukiko Hara-Kudo
- Division of Microbiology, National Institute of Health Sciences, 3-25-26, Tonomachi, Kawasaki-ku, Kawasaki, Kanagawa 210-9501, Japan
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12
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The Evasive Enemy: Insights into the Virulence and Epidemiology of the Emerging Attaching and Effacing Pathogen Escherichia albertii. Infect Immun 2018; 87:IAI.00254-18. [PMID: 30373891 DOI: 10.1128/iai.00254-18] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2018] [Accepted: 10/18/2018] [Indexed: 01/10/2023] Open
Abstract
The diarrheic attaching and effacing (A/E) pathogen Escherichia albertii was first isolated from infants in Bangladesh in 1991, although the bacterium was initially classified as Hafnia alvei Subsequent genetic and biochemical interrogation of these isolates raised concerns about their initial taxonomic placement. It was not until 2003 that these isolates were reassigned to the novel taxon Escherichia albertii because they were genetically more closely related to E. coli, although they had diverged sufficiently to warrant a novel species name. Unfortunately, new isolates continue to be mistyped as enteropathogenic E. coli (EPEC) or enterohemorrhagic E. coli (EHEC) owing to shared traits, most notably the ability to form A/E lesions. Consequently, E. albertii remains an underappreciated A/E pathogen, despite multiple reports demonstrating that many provisional EPEC and EHEC isolates incriminated in disease outbreaks are actually E. albertii Metagenomic studies on dozens of E. albertii isolates reveal a genetic architecture that boasts an arsenal of candidate virulence factors to rival that of its better-characterized cousins, EPEC and EHEC. Beyond these computational comparisons, studies addressing the regulation, structure, function, and mechanism of action of its repertoire of virulence factors are lacking. Thus, the paucity of knowledge about the epidemiology, virulence, and antibiotic resistance of E. albertii, coupled with its misclassification and its ability to develop multidrug resistance in a single step, highlights the challenges in combating this emerging pathogen. This review seeks to synthesize our current but incomplete understanding of the biology of E. albertii.
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13
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Affiliation(s)
- James L. Smith
- Eastern Regional Research Center, Agricultural Research Service, U.S. Department of Agriculture, Wyndmoor, Pennsylvania
| | - Pina M. Fratamico
- Eastern Regional Research Center, Agricultural Research Service, U.S. Department of Agriculture, Wyndmoor, Pennsylvania
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14
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Maheux AF, Brodeur S, Bérubé È, Boudreau DK, Abed JY, Boissinot M, Bissonnette L, Bergeron MG. Method for isolation of both lactose-fermenting and – non-fermenting Escherichia albertii strains from stool samples. J Microbiol Methods 2018; 154:134-140. [DOI: 10.1016/j.mimet.2018.09.008] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2018] [Revised: 09/17/2018] [Accepted: 09/17/2018] [Indexed: 11/29/2022]
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15
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Jeong J, Chon JW, Kim H, Song KY, Seo KH. Risk Assessment for Salmonellosis in Chicken in South Korea: The Effect of Salmonella Concentration in Chicken at Retail. Korean J Food Sci Anim Resour 2018; 38:1043-1054. [PMID: 30479510 PMCID: PMC6238039 DOI: 10.5851/kosfa.2018.e37] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2018] [Revised: 09/10/2018] [Accepted: 09/12/2018] [Indexed: 11/06/2022] Open
Abstract
Salmonellosis caused by chicken consumption has been a critical issue in food
safety worldwide, including in Korea. The probability of illness from
consumption of chicken was simulated in study, based on the recipe of Dakgalbi,
a commonly eaten chicken dish in Korea. Additionally, the processing stage at
slaughterhouses to decrease Salmonella concentration in
broilers was modeled to explore its effect on the likelihood of illness. A Monte
Carlo simulation model was created using @RISK. Prevalence of
Salmonella in chickens at the retail stage was found to be
predominantly important in determining the probability of illness. Other than
the prevalence, cooking temperature was found to have the largest impact on the
probability of illness. The results also demonstrated that, although
chlorination is a powerful tool for decreasing the Salmonella
concentration in chicken, this effect did not last long and was negated by the
following stages. This study analyzes the effects of variables of the
retail-to-table pathway on the likelihood of salmonellosis in broiler
consumption, and also evaluates the processing step used to decrease the
contamination level of Salmonella in broilers at
slaughterhouses. According to the results, we suggest that methods to decrease
the contamination level of Salmonella such as chlorination had
little effect on decreasing the probability of illness. Overall, these results
suggest that preventing contamination of broiler with
Salmonella must be a top priority and that methods to
reduce the concentration of Salmonella in broilers at
slaughterhouses hardly contribute to safe consumption of
Salmonella-contaminated chicken.
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Affiliation(s)
- Jaewoon Jeong
- Center for One Health, College of Veterinary Medicine, Konkuk University, Seoul 05029, Korea
| | - Jung-Whan Chon
- Center for One Health, College of Veterinary Medicine, Konkuk University, Seoul 05029, Korea
| | - Hyunsook Kim
- Department of Food & Nutrition, College of Human Ecology, Hanyang University, Seoul 04763, Korea
| | - Kwang-Young Song
- Center for One Health, College of Veterinary Medicine, Konkuk University, Seoul 05029, Korea
| | - Kun-Ho Seo
- Center for One Health, College of Veterinary Medicine, Konkuk University, Seoul 05029, Korea
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16
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Li Q, Wang H, Xu Y, Bai X, Wang J, Zhang Z, Liu X, Miao Y, Zhang L, Li X, Zou N, Yan G, Chen X, Zhang J, Fu S, Fan R, Xu J, Li J, Xiong Y. Multidrug-Resistant Escherichia albertii: Co-occurrence of β-Lactamase and MCR-1 Encoding Genes. Front Microbiol 2018; 9:258. [PMID: 29503643 PMCID: PMC5820351 DOI: 10.3389/fmicb.2018.00258] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2017] [Accepted: 02/01/2018] [Indexed: 01/21/2023] Open
Abstract
Escherichia albertii is an emerging member of the Enterobacteriaceae causing human and animal enteric infections. Antimicrobial resistance among enteropathogens has been reported to be increasing in the past years. The purpose of this study was to investigate antibiotic resistance and resistance genes in E. albertii isolated from Zigong city, Sichuan province, China. The susceptibility to 21 antimicrobial agents was determined by Kirby-Bauer disk diffusion method. The highest prevalence was tetracycline resistance with a rate of 62.7%, followed by resistance to nalidixic acid and streptomycin with a rate of 56.9 and 51.0%, respectively. All isolates were sensitive or intermediate susceptible to imipenem, meropenem, amoxicillin-clavulanic acid, and levofloxacin. Among 51 E. albertii isolates, 15 were extended-spectrum β-lactamase-producing as confirmed by the double disk test. The main β-lactamase gene groups, i.e., blaTEM, blaSHV, and blaCTX-M, were detected in17, 20, and 22 isolates, respectively. Furthermore, four colistin-resistant isolates with minimum inhibitory concentrations of 8 mg/L were identified. The colistin-resistant isolates all harbored mcr-1 and blaCTX-M-55. Genome sequencing showed that E. albertii strain SP140150 carried mcr-1 and blaCTX-M-55 in two different plasmids. This study provided significant information regarding antibiotic resistance profiles and identified the co-occurrence of β-lactamase and MCR-1 encoding genes in E. albertii isolates.
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Affiliation(s)
- Qun Li
- Zigong Center for Disease Control and Prevention, Zigong, China
| | - Hong Wang
- Zigong Center for Disease Control and Prevention, Zigong, China
| | - Yanmei Xu
- Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, 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
| | - Xiangning Bai
- Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, 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
| | - Jianping Wang
- Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, 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
| | - Zhengdong Zhang
- Zigong Center for Disease Control and Prevention, Zigong, China
| | - Xiang Liu
- Zigong Center for Disease Control and Prevention, Zigong, China
| | - Yimao Miao
- Zigong Center for Disease Control and Prevention, Zigong, China
| | - Ling Zhang
- Zigong Center for Disease Control and Prevention, Zigong, China
| | - Xinqiong Li
- Zigong Center for Disease Control and Prevention, Zigong, China
| | - Nianli Zou
- Zigong Center for Disease Control and Prevention, Zigong, China
| | - Guodong Yan
- Zigong Center for Disease Control and Prevention, Zigong, China
| | - Xi Chen
- Zigong Center for Disease Control and Prevention, Zigong, China
| | - Jie Zhang
- Zigong Center for Disease Control and Prevention, Zigong, China
| | - Shanshan Fu
- Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, 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
| | - Ruyue Fan
- Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, 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
| | - Jianguo Xu
- Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, 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
| | - Juan Li
- Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, 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
| | - Yanwen Xiong
- Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, 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
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17
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Grillová L, Sedláček I, Páchníková G, Staňková E, Švec P, Holochová P, Micenková L, Bosák J, Slaninová I, Šmajs D. Characterization of four Escherichia albertii isolates collected from animals living in Antarctica and Patagonia. J Vet Med Sci 2017; 80:138-146. [PMID: 29249728 PMCID: PMC5797873 DOI: 10.1292/jvms.17-0492] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
Escherichia albertii is a recently discovered species with a limited number of well characterized strains. The aim of this study was to characterize four of the E. albertii strains, which were among 41 identified Escherichia strains isolated from the feces of living animals on James Ross Island, Antarctica, and Isla Magdalena, Patagonia. Sequencing of 16S rDNA, automated ribotyping, and rep-PCR were used to identify the four E. albertii isolates. Phylogenetic analyses based on multi-locus sequence typing showed these isolates to be genetically most similar to the members of E. albertii phylogroup G3. These isolates encoded several virulence factors including those, which are characteristic of E. albertii (cytolethal distending toxin and intimin) as well as bacteriocin determinants that typically have a very low prevalence in E. coli strains (D, E7). Moreover, E. albertii protein extracts caused cell cycle arrest in human cell line A375, probably because of cytolethal distending toxin activity.
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Affiliation(s)
- Linda Grillová
- Department of Biology, Faculty of Medicine, Masaryk University, 625 00, Brno, Czech Republic
| | - Ivo Sedláček
- Czech Collection of Microorganisms, Department of Experimental Biology, Faculty of Science, Masaryk University, 625 00, Brno, Czech Republic
| | - Gabriela Páchníková
- Department of Biology, Faculty of Medicine, Masaryk University, 625 00, Brno, Czech Republic
| | - Eva Staňková
- Czech Collection of Microorganisms, Department of Experimental Biology, Faculty of Science, Masaryk University, 625 00, Brno, Czech Republic
| | - Pavel Švec
- Czech Collection of Microorganisms, Department of Experimental Biology, Faculty of Science, Masaryk University, 625 00, Brno, Czech Republic
| | - Pavla Holochová
- Czech Collection of Microorganisms, Department of Experimental Biology, Faculty of Science, Masaryk University, 625 00, Brno, Czech Republic
| | - Lenka Micenková
- Research Centre for Toxic Compounds in the Environment, Faculty of Science, Masaryk University, 625 00, Brno, Czech Republic
| | - Juraj Bosák
- Department of Biology, Faculty of Medicine, Masaryk University, 625 00, Brno, Czech Republic
| | - Iva Slaninová
- Department of Biology, Faculty of Medicine, Masaryk University, 625 00, Brno, Czech Republic
| | - David Šmajs
- Department of Biology, Faculty of Medicine, Masaryk University, 625 00, Brno, Czech Republic
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18
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Zheng H, Shashkov AS, Xiong Y, Naumenko OI, Wang H, Senchenkova SN, Wang J, Knirel YA. Structure and gene cluster of the O-antigen of Escherichia albertii O1 resembling the O-antigen of Pseudomonas aeruginosa O5. Carbohydr Res 2017; 446-447:28-31. [PMID: 28494314 DOI: 10.1016/j.carres.2017.04.024] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2017] [Revised: 04/29/2017] [Accepted: 04/29/2017] [Indexed: 11/27/2022]
Abstract
The O-specific polysaccharide (O-antigen) was obtained by mild acid degradation of the lipopolysaccharide of Escherichia albertii serotype O1 strain SP20140089 and studied by sugar analysis along with 1D and 2D 1H and 13C NMR spectroscopy. The following structure was established for the trisaccharide repeating unit of the O-polysaccharide: →4)-β-d-ManpNAc3NAcA-(1 → 4)-β-d-GlcpNAm3NAcA-(1 → 3)-α-d-GlcpNAc-(1→ where ManNAc3NAcA and GlcNAm3NAcA indicate 2,3-diacetamido-2,3-dideoxymannuronic acid and 2-acetimidoylamino-3-acetamido-2,3-dideoxyglucuronic acid, respectively. While showing some similarity with O-polysaccharide structures of a group of Pseudomonas aeruginosa serotypes (O2, O5, O16, O18, and O20), that of E. albertii O1 is unique among known bacterial polysaccharide structures. The gene cluster for biosynthesis of the O1-antigen was sequenced and functions of the genes were predicted by comparison with sequences in the available databases, including those involved in the synthesis of nucleotide precursors of 2,3-diamino-2,3-dideoxyhexuronic acid derivatives in P. aeruginosa O5.
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Affiliation(s)
- Han Zheng
- State Key Laboratory of Infectious Disease Prevention and Control, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Changping, Beijing, China
| | - Alexander S Shashkov
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Moscow, Russia
| | - Yanwen Xiong
- State Key Laboratory of Infectious Disease Prevention and Control, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Changping, Beijing, China
| | - Olesya I Naumenko
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Moscow, Russia; Higher Chemical College of the Russian Academy of Sciences, D. I. Mendeleev University of Chemical Technology of Russia, Moscow, Russia
| | - Hong Wang
- Zigong Center for Disease Control and Prevention, Zigong, Sichuan Province, China
| | - Sof'ya N Senchenkova
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Moscow, Russia
| | - Jianping 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, Changping, Beijing, China
| | - Yuriy A Knirel
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Moscow, Russia.
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