1
|
Burke LP, Chique C, Fitzhenry K, Chueiri A, O'Connor L, Hooban B, Cahill N, Brosnan E, Olaore L, Sullivan E, Reilly L, Morris D, Hynds P, O'Dwyer J. Characterization of Shiga toxin-producing Escherichia coli presence, serogroups and risk factors from private groundwater sources in western Ireland. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 866:161302. [PMID: 36592918 DOI: 10.1016/j.scitotenv.2022.161302] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/18/2022] [Revised: 12/14/2022] [Accepted: 12/27/2022] [Indexed: 06/17/2023]
Abstract
Over recent years, Ireland has reported the highest crude incidence rates of Shiga toxin-producing Escherichia coli (STEC) enteritis in Europe. Unregulated private groundwater sources have emerged as an important potential transmission route for STEC, with up to 750,000 Irish residents reliant on these sources for domestic waters. This study aimed to investigate the prevalence and serogroup profile of STEC contamination from domestic private wells in western Ireland. Fifty-two groundwater sources were analysed during two sampling campaigns in the autumn (September/October) of 2019 (n = 21) and 2021 (n = 31). Untreated groundwater samples (30 L) were collected and analysed using the "CapE" (capture, amplify, extract) method. Extracted DNA was tested using multiplex real-time PCR for Shiga toxin stx1 and/or stx2 and eae genes. STEC positive DNA samples were tested for clinically relevant serogroups by real-time PCR. Data relating to 27 potential groundwater contamination risk factors were geospatially linked to each well and assessed for association with E. coli, stx1 and/or stx2 and eae presence/absence. Overall, 20/52 wells (38.4 %) were positive for E. coli (median concentration 8.5 MPN/100 mL as assessed by Colilert-18 method). Stx1 and/or stx2 was detected in 10/52 (19.2 %) wells overall and 8/20 E. coli positive wells, equating to a STEC to "generic" E. coli detection ratio of 40 %. Six of these wells (30 %) were also positive for eae. One or more serogroup-specific gene targets were identified in all but one stx1 and/or stx2 positive sample, with O145 (n = 6), O157 (n = 5) and O103 (n = 4) most prevalent. STEC presence was significantly associated with decreasing well depth (U = -2.243; p = 0.024) and increasing 30-day mean antecedent rainfall (U = 2.126; p = 0.034). Serogroup O104 was associated with increased sheep density (U = 2.089; p = 0.044) and detection of stx1 and/or stx2 + eae with increased septic tank density (U = 2.246 p = 0.023). Findings indicate high detection rates of clinically relevant STEC in E. coli contaminated groundwater sources in Ireland.
Collapse
Affiliation(s)
- Liam Patrick Burke
- Antimicrobial Resistance and Microbial Ecology Group, School of Medicine, University of Galway, Galway, Ireland; Centre for One Health, Ryan Institute, University of Galway, Galway, Ireland.
| | - Carlos Chique
- School of Biological, Earth and Environmental Science (BEES), University College Cork, Cork, Ireland; Environmental Research Institute, University College Cork, Cork, Ireland
| | - Kelly Fitzhenry
- Antimicrobial Resistance and Microbial Ecology Group, School of Medicine, University of Galway, Galway, Ireland; Centre for One Health, Ryan Institute, University of Galway, Galway, Ireland
| | - Alexandra Chueiri
- Antimicrobial Resistance and Microbial Ecology Group, School of Medicine, University of Galway, Galway, Ireland; Centre for One Health, Ryan Institute, University of Galway, Galway, Ireland
| | - Louise O'Connor
- Antimicrobial Resistance and Microbial Ecology Group, School of Medicine, University of Galway, Galway, Ireland; Centre for One Health, Ryan Institute, University of Galway, Galway, Ireland
| | - Brigid Hooban
- Antimicrobial Resistance and Microbial Ecology Group, School of Medicine, University of Galway, Galway, Ireland; Centre for One Health, Ryan Institute, University of Galway, Galway, Ireland
| | - Niamh Cahill
- Antimicrobial Resistance and Microbial Ecology Group, School of Medicine, University of Galway, Galway, Ireland; Centre for One Health, Ryan Institute, University of Galway, Galway, Ireland
| | - Ellen Brosnan
- Antimicrobial Resistance and Microbial Ecology Group, School of Medicine, University of Galway, Galway, Ireland; Centre for One Health, Ryan Institute, University of Galway, Galway, Ireland
| | - Lateefat Olaore
- Antimicrobial Resistance and Microbial Ecology Group, School of Medicine, University of Galway, Galway, Ireland; Centre for One Health, Ryan Institute, University of Galway, Galway, Ireland
| | - Emma Sullivan
- Antimicrobial Resistance and Microbial Ecology Group, School of Medicine, University of Galway, Galway, Ireland; Centre for One Health, Ryan Institute, University of Galway, Galway, Ireland
| | - Louise Reilly
- Antimicrobial Resistance and Microbial Ecology Group, School of Medicine, University of Galway, Galway, Ireland; Centre for One Health, Ryan Institute, University of Galway, Galway, Ireland
| | - Dearbháile Morris
- Antimicrobial Resistance and Microbial Ecology Group, School of Medicine, University of Galway, Galway, Ireland; Centre for One Health, Ryan Institute, University of Galway, Galway, Ireland
| | - Paul Hynds
- Irish Centre for Research in Applied Geosciences, University College Dublin, Dublin, Ireland; Environmental Sustainability and Health Institute (ESHI), Technological University Dublin, Ireland
| | - Jean O'Dwyer
- School of Biological, Earth and Environmental Science (BEES), University College Cork, Cork, Ireland; Environmental Research Institute, University College Cork, Cork, Ireland; Irish Centre for Research in Applied Geosciences, University College Dublin, Dublin, Ireland
| |
Collapse
|
2
|
Beraldo LG, Borges CA, Maluta RP, Cardozo MV, de Ávila FA. Molecular analysis of enteropathogenic Escherichia coli (EPEC) isolates from healthy food-producing animals and humans with diarrhoea. Zoonoses Public Health 2023; 70:117-124. [PMID: 36377683 DOI: 10.1111/zph.13007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2022] [Revised: 07/31/2022] [Accepted: 10/26/2022] [Indexed: 11/16/2022]
Abstract
Enteropathogenic Escherichia coli (EPEC) is a pathogen associated with acute diarrhoea in humans. To determine whether EPEC isolated from healthy food-producing animals possesses the same virulence gene repertoire as EPEC isolated from human with diarrhoea, we compared six typical EPEC (tEPEC) and 20 atypical EPEC (aEPEC) from humans with diarrhoea and 42 aEPEC from healthy animals (swine, sheep and buffaloes), using pulsed-field gel electrophoresis (PFGE), virulence markers, serotyping and subtyping of eae and tir genes. We found that human and animal isolates shared virulence genes, including nleB, nleE and nleF, which were associated with human diarrhoea. Serogroups and serotypes identified in isolates of food-producing animals such as O26:H11, O128:H2, O76:H7, O103, O108, O111 and O145, have previously been implicated in human disease. The subtypes eae and tir were also shared between human and animal isolates, being eae-γ1 and eae-β1 the most prevalent in both groups, while the most common tir subtypes were α and β. Despite PFGE analysis demonstrating that EPEC strains are heterogeneous and there was no prevalent clone identified, EPEC isolated from humans and food-producing animals shared some characteristics, such as virulence genes associated with human diarrhoea, indicating that food-producing animals could play a role as reservoirs for those genes.
Collapse
Affiliation(s)
- Livia Gerbasi Beraldo
- Department of Veterinary Pathology, Faculty of Agricultural and Veterinary Sciences, São Paulo State University (UNESP), Jaboticabal, Brazil
| | - Clarissa Araújo Borges
- Department of Veterinary Pathology, Faculty of Agricultural and Veterinary Sciences, São Paulo State University (UNESP), Jaboticabal, Brazil
| | - Renato Pariz Maluta
- Department of Genetics, Evolution and Bioagents, Institute of Biology, State University of Campinas (UNICAMP), Campinas, Brazil
| | - Marita Vedovelli Cardozo
- Department of Veterinary Pathology, Faculty of Agricultural and Veterinary Sciences, São Paulo State University (UNESP), Jaboticabal, Brazil
| | - Fernando Antônio de Ávila
- Department of Veterinary Pathology, Faculty of Agricultural and Veterinary Sciences, São Paulo State University (UNESP), Jaboticabal, Brazil
| |
Collapse
|
3
|
A systematic review and meta-analysis of published literature on prevalence of non-O157 Shiga toxin-producing Escherichia coli serogroups (O26, O45, O103, O111, O121, and O145) and virulence genes in feces, hides, and carcasses of pre- and peri-harvest cattle worldwide. Anim Health Res Rev 2022; 23:1-24. [PMID: 35678500 DOI: 10.1017/s1466252321000153] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
OBJECTIVE The objective of this study was to summarize peer-reviewed literature on the prevalence and concentration of non-O157 STEC (O26, O45, O103, O111, O121, and O145) serogroups and virulence genes (stx and eae) in fecal, hide, and carcass samples in pre- and peri-harvest cattle worldwide, using a systematic review of the literature and meta-analyses. DATA SYNTHESIS Seventy articles were eligible for meta-analysis inclusion; data from 65 articles were subjected to random-effects meta-analysis models to yield fecal prevalence estimates. Meta-regression models were built to explore variables contributing to the between-study heterogeneity. RESULTS Worldwide pooled non-O157 serogroup, STEC, and EHEC fecal prevalence estimates (95% confidence interval) were 4.7% (3.4-6.3%), 0.7% (0.5-0.8%), and 1.0% (0.8-1.1%), respectively. Fecal prevalence estimates significantly differed by geographic region (P < 0.01) for each outcome classification. Meta-regression analyses identified region, cattle type, and specimen type as factors that contribute to heterogeneity for worldwide fecal prevalence estimates. CONCLUSIONS The prevalence of these global foodborne pathogens in the cattle reservoir is widespread and highly variable by region. The scarcity of prevalence and concentration data for hide and carcass matrices identifies a large data gap in the literature as these are the closest proxies for potential beef contamination at harvest.
Collapse
|
4
|
Li Y, Zhu Y, Chu B, Liu N, Chen S, Wang J, Zou Y. Map of Enteropathogenic Escherichia coli Targets Mitochondria and Triggers DRP-1-Mediated Mitochondrial Fission and Cell Apoptosis in Bovine Mastitis. Int J Mol Sci 2022; 23:ijms23094907. [PMID: 35563295 PMCID: PMC9105652 DOI: 10.3390/ijms23094907] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2022] [Revised: 04/25/2022] [Accepted: 04/27/2022] [Indexed: 02/05/2023] Open
Abstract
Bovine mastitis seriously affects bovine health and dairy product quality. Escherichia coli is the most important pathogen in the environment and dairy products. Enteropathogenic Escherichia coli (EPEC) is a zoonotic pathogen, which seriously threatens the health of people and dairy cows. We recently reported that E. coli can induce endogenous apoptosis in bovine mammary epithelial cells. However, the mechanism of EPEC-damaged mitochondria and -induced bovine mastitis is unclear. In this study, we found that EPEC can induce DRP-1-dependent mitochondrial fission and apoptosis. This was verified by the application of Mdivi, a DRP-1 inhibitor. Meanwhile, in order to verify the role of the Map virulence factor in EPEC-induced bovine mastitis, we constructed a map mutant, complementary strain, and recombinant plasmid MapHis. In the present study, we find that Map induced DRP-1-mediated mitochondrial fission, resulting in mitochondrial dysfunction and apoptosis. These inferences were further verified in vivo by establishing a mouse mastitis model. After the map gene was knocked out, breast inflammation and apoptosis in mice were significantly alleviated. All results show that EPEC targets mitochondria by secreting the Map virulence factor to induce DRP-1-mediated mitochondrial fission, mitochondrial dysfunction, and endogenous apoptosis in bovine mastitis.
Collapse
Affiliation(s)
| | | | | | | | | | - Jiufeng Wang
- Correspondence: (J.W.); (Y.Z.); Tel.: +86-10-6273-1094 (J.W.)
| | - Yunjing Zou
- Correspondence: (J.W.); (Y.Z.); Tel.: +86-10-6273-1094 (J.W.)
| |
Collapse
|
5
|
Li Y, Zhu Y, Chu B, Liu N, Chen S, Wang J. Map, but not EspF, induces breast epithelial cell apoptosis through ERK/DRP-1 pathway. Vet Microbiol 2022; 266:109367. [DOI: 10.1016/j.vetmic.2022.109367] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2021] [Revised: 02/05/2022] [Accepted: 02/06/2022] [Indexed: 11/15/2022]
|
6
|
Ramovic E, Madigan G, McDonnell S, Griffin D, Bracken E, NiGhallchoir E, Quinless E, Galligan A, Egan J, Prendergast DM. A pilot study using environmental screening to determine the prevalence of Mycobacterium avium subspecies paratuberculosis (MAP) and antimicrobial resistance (AMR) in Irish cattle herds. Ir Vet J 2020; 73:3. [PMID: 32082542 PMCID: PMC7024553 DOI: 10.1186/s13620-020-0156-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2019] [Accepted: 01/26/2020] [Indexed: 12/26/2022] Open
Abstract
Background Dairy and beef cattle can be reservoirs of many pathogens, including Salmonella and Mycobacterium avium subsp. paratuberculosis (MAP), the causative agent of Johne’s disease (JD). Farm environments may provide potential entry points for the transmission of infectious agents into the food chain. Antibiotics are used to treat a wide variety of infections on farms, and administration of antimicrobial agents to cattle is considered to be a driving factor for antimicrobial resistance (AMR). Control of JD and AMR are priority for animal health initiatives in Ireland. A national JD pilot programme was introduced by Animal Health Ireland in 2014, while the national action plan launched by Department of Health and Department of Agriculture, Food and Marine introduced in 2017 aims to improve the surveillance of AMR. The current investigation was undertaken as a pilot study to determine the proportion of herds positive for MAP, Salmonella species (Salmonella spp), commensal Escherichia coli (E. coli), Extended-spectrum beta-lactamase (ESBL) AmpC β-lactamase and carbapenemase-producing E. coli from 157 environmental faecal samples in Irish farms. Results MAP was detected in 10.2% of samples collected; on culture in 4 (4.9%) of the dairy herds and from 1 (1.3%) of the beef/suckler herds, and by PCR in 10 (12.3%) and 6 (7.9%) of these herds respectively. All culture positive herds were also positive by PCR. An additional 11 herds were positive by PCR only. Salmonella was not detected, while commensal E. coli were isolated from 70.7% of the samples (111/157) with 101 of these isolates shown to be fully susceptible to all antimicrobials tested. Of the 27 presumptive ESBL AmpC β-lactamase producing E. coli detected, one isolate was resistant to ten antimicrobials, nine isolates were resistant to nine antimicrobials, and four isolates were resistant to eight antimicrobials. Carbapenemase-producing E. coli were not isolated. Conclusions The results highlight the importance of monitoring farm environments for Johne’s disease. This disease is a growing concern for dairy and beef producers in Ireland, and sampling the farm environment may offer a useful means to rapidly screen for the presence of MAP. Non-pathogenic common enteric commensal and multiple-drug-resistant E. coli may contribute to AMR acting as a reservoir and transferring resistance to other species/pathogens in the environment.
Collapse
Affiliation(s)
- Elvira Ramovic
- Central Veterinary Research Laboratory, Department of Agriculture, Food and the Marine, Backweston Complex, Celbridge, Co. Kildare Ireland
| | - Gillian Madigan
- Central Veterinary Research Laboratory, Department of Agriculture, Food and the Marine, Backweston Complex, Celbridge, Co. Kildare Ireland
| | - Shannon McDonnell
- Central Veterinary Research Laboratory, Department of Agriculture, Food and the Marine, Backweston Complex, Celbridge, Co. Kildare Ireland
| | - Denise Griffin
- Central Veterinary Research Laboratory, Department of Agriculture, Food and the Marine, Backweston Complex, Celbridge, Co. Kildare Ireland
| | - Elaine Bracken
- Central Veterinary Research Laboratory, Department of Agriculture, Food and the Marine, Backweston Complex, Celbridge, Co. Kildare Ireland
| | - Eadaoin NiGhallchoir
- Central Veterinary Research Laboratory, Department of Agriculture, Food and the Marine, Backweston Complex, Celbridge, Co. Kildare Ireland
| | - Emma Quinless
- Central Veterinary Research Laboratory, Department of Agriculture, Food and the Marine, Backweston Complex, Celbridge, Co. Kildare Ireland
| | - Aoife Galligan
- Central Veterinary Research Laboratory, Department of Agriculture, Food and the Marine, Backweston Complex, Celbridge, Co. Kildare Ireland
| | - John Egan
- Central Veterinary Research Laboratory, Department of Agriculture, Food and the Marine, Backweston Complex, Celbridge, Co. Kildare Ireland
| | - Deirdre M Prendergast
- Central Veterinary Research Laboratory, Department of Agriculture, Food and the Marine, Backweston Complex, Celbridge, Co. Kildare Ireland
| |
Collapse
|
7
|
Zhang S, Yang G, Huang Y, Zhang J, Cui L, Wu Q. Prevalence and Characterization of Atypical Enteropathogenic Escherichia coli Isolated from Retail Foods in China. J Food Prot 2018; 81:1761-1767. [PMID: 30277802 DOI: 10.4315/0362-028x.jfp-18-188] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Atypical enteropathogenic Escherichia coli (aEPEC) is an emerging pathogen that has been implicated in outbreaks of diarrhea worldwide. The objective of this study was to investigate the occurrence of aEPEC in retail foods at markets in the People's Republic of China and to characterize the isolates for virulence genes, intimin gene ( eae) subtypes, multilocus sequence types (STs), and antimicrobial susceptibility. From May 2014 to April 2015, 1,200 food samples were collected from retail markets in China, and 41 aEPEC isolates were detected in 2.75% (33 of 1,200) of the food samples. The virulence genes tir, katP, etpD, efa/lifA, ent, nleB, and nleE were commonly detected in these isolates. Nine eae subtypes were detected in the isolates, among which θ (23 isolates) and β1 (6 isolates) were the most prevalent. The 41 isolates were divided into 27 STs by multilocus sequence typing. ST752 and ST10 were the most prevalent. Antibiotic susceptibility testing revealed high resistance among isolates to streptomycin (87.80%), cephalothin (73.16%), ampicillin (51.22%), tetracycline (63.42%), trimethoprim-sulfamethoxazole (43.90%), and kanamycin (43.90%). Thirty isolates (73.17%) were resistant to at least three antibiotics, and 20 (53.66 %) were resistant to five or more antibiotics. Our results suggest that retail foods in markets are important sources of aEPEC. The presence of virulent and multidrug-resistant aEPEC in retail foods poses a potential threat to consumers. Surveillance of aEPEC contamination and prudent use of antibiotics is strongly recommended in China.
Collapse
Affiliation(s)
- Shuhong Zhang
- 1 College of Natural Resources and Environment, South China Agricultural University, Wushan Road No. 483, Guangzhou 510642, People's Republic of China.,2 Guangdong Institute of Microbiology, State Key Laboratory of Applied Microbiology Southern China and Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, Guangdong Open Laboratory of Applied Microbiology, Xianlie Middle Road No. 100, Yuexiu District, Guangzhou 510070, People's Republic of China
| | - Guangzhu Yang
- 2 Guangdong Institute of Microbiology, State Key Laboratory of Applied Microbiology Southern China and Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, Guangdong Open Laboratory of Applied Microbiology, Xianlie Middle Road No. 100, Yuexiu District, Guangzhou 510070, People's Republic of China
| | - Yuanbin Huang
- 2 Guangdong Institute of Microbiology, State Key Laboratory of Applied Microbiology Southern China and Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, Guangdong Open Laboratory of Applied Microbiology, Xianlie Middle Road No. 100, Yuexiu District, Guangzhou 510070, People's Republic of China
| | - Jumei Zhang
- 2 Guangdong Institute of Microbiology, State Key Laboratory of Applied Microbiology Southern China and Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, Guangdong Open Laboratory of Applied Microbiology, Xianlie Middle Road No. 100, Yuexiu District, Guangzhou 510070, People's Republic of China
| | - Lihua Cui
- 1 College of Natural Resources and Environment, South China Agricultural University, Wushan Road No. 483, Guangzhou 510642, People's Republic of China
| | - Qingping Wu
- 2 Guangdong Institute of Microbiology, State Key Laboratory of Applied Microbiology Southern China and Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, Guangdong Open Laboratory of Applied Microbiology, Xianlie Middle Road No. 100, Yuexiu District, Guangzhou 510070, People's Republic of China
| |
Collapse
|
8
|
Xu Y, Sun H, Bai X, Fu S, Fan R, Xiong Y. Occurrence of multidrug-resistant and ESBL-producing atypical enteropathogenic Escherichia coli in China. Gut Pathog 2018; 10:8. [PMID: 30038667 PMCID: PMC6054294 DOI: 10.1186/s13099-018-0234-0] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/09/2018] [Accepted: 02/19/2018] [Indexed: 01/05/2023] Open
Abstract
Background Atypical enteropathogenic Escherichia coli (aEPEC) is regarded as a globally emerging enteropathogen. aEPECs exhibit various level of resistance to a range of antibiotics, which is increasing alarmingly. The present study investigated the antimicrobial resistance of aEPEC isolates recovered from diarrheal patients, healthy carriers, animals, and raw meats. Results Among 267 aEPEC isolates, 146 (54.7%) were resistant to tetracycline, followed by ampicillin (49.4%), streptomycin (46.1%), and piperacillin (41.2%). Multidrug resistance (MDR) was detected in 128 (47.9%) isolates, and 40 MDR isolates were resistant to ≥ 10 antimicrobial agents. A total of 47 (17.6%) aEPEC isolates were identified as extended-spectrum β-lactamase (ESBL)-producers. The blaCTX-M-14 and blaCTX-M-15 genes were predominant among ESBL-producing isolates. Conclusions This investigation depicted the occurrence of multidrug-resistant and ESBL-producing aEPEC isolates in China. The results suggested that it is necessary to continuously monitor the emergence and spread of MDR aEPEC. Electronic supplementary material The online version of this article (10.1186/s13099-018-0234-0) contains supplementary material, which is available to authorized users.
Collapse
Affiliation(s)
- Yanmei Xu
- 1State 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
| | - Hui Sun
- 1State 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
| | - Xiangning Bai
- 1State 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
| | - Shanshan Fu
- 1State 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
| | - Ruyue Fan
- 1State 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
| | - Yanwen Xiong
- 1State 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.,2Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, Hangzhou, Zhejiang China
| |
Collapse
|
9
|
Caetano BA, Rocha LB, Carvalho E, Piazza RMF, Luz D. Immunogenic Domains and Secondary Structure of Escherichia coli Recombinant Secreted Protein Escherichia coli-Secreted Protein B. Front Immunol 2017; 8:477. [PMID: 28484467 PMCID: PMC5402224 DOI: 10.3389/fimmu.2017.00477] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2016] [Accepted: 04/05/2017] [Indexed: 11/24/2022] Open
Abstract
Several pathogenic bacteria are able to induce the attaching and effacing (A/E) lesion. The A/E lesion is caused by effector proteins, such as Escherichia coli-secreted protein B (EspB), responsible together with Escherichia coli-secreted protein D for forming a pore structure on the host cell, which allows the translocation of effector proteins. Different variants of this protein can be found in E. coli strains, and during natural infection or when this protein is injected, this leads to variant-specific production of antibodies, which may not be able to recognize other variants of this bacterial protein. Herein, we describe the production of a hybrid recombinant EspB toxin that comprises all known variants of this protein. This recombinant protein could be useful as an antigen for the production of antibodies with broad-range detection of EspB-bearing bacteria, or as an antigen that could be used in vaccine formulation to generate antibodies against different EspB variants, thereby increasing immunization potential. In addition, the recombinant protein allowed us to analyze its secondary structure, to propose the immunogenic regions of EspB variants, and also to characterize anti-EspB antibodies. Our results suggest that this hybrid protein or a protein composed of the conserved immunogenic regions could be used for a variety of clinical applications.
Collapse
Affiliation(s)
- Bruna Alves Caetano
- Laboratório de Bacteriologia, Instituto Butantan, São Paulo, São Paulo, Brazil
| | | | - Eneas Carvalho
- Centro de Biotecnologia, Instituto Butantan, São Paulo, São Paulo, Brazil
| | | | - Daniela Luz
- Laboratório de Bacteriologia, Instituto Butantan, São Paulo, São Paulo, Brazil
| |
Collapse
|
10
|
Gómez-Aldapa CA, Segovia-Cruz JA, Cerna-Cortes JF, Rangel-Vargas E, Salas-Rangel LP, Gutiérrez-Alcántara EJ, Castro-Rosas J. Prevalence and behavior of multidrug-resistant shiga toxin-producing Escherichia coli, enteropathogenic E. coli and enterotoxigenic E. coli on coriander. Food Microbiol 2016; 59:97-103. [DOI: 10.1016/j.fm.2016.05.014] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2015] [Revised: 05/23/2016] [Accepted: 05/27/2016] [Indexed: 10/21/2022]
|
11
|
Ferdous M, Kooistra-Smid AMD, Zhou K, Rossen JWA, Friedrich AW. Virulence, Antimicrobial Resistance Properties and Phylogenetic Background of Non-H7 Enteropathogenic Escherichia coli O157. Front Microbiol 2016; 7:1540. [PMID: 27733849 PMCID: PMC5039186 DOI: 10.3389/fmicb.2016.01540] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2016] [Accepted: 09/14/2016] [Indexed: 02/02/2023] Open
Abstract
Escherichia coli (E.coli) O157 that do not produce Shiga toxin and do not possess flagellar antigen H7 are of diverse H serotypes. In this study, the antibiotic resistance properties, genotype of a set of virulence associated genes and the phylogenetic background of E. coli O157:non-H7 groups were compared. Whole genome sequencing was performed on fourteen O157:non-H7 isolates collected in the STEC-ID-net study. The genomes were compared with E. coli O157 genomes and a typical Enteropathogenic E. coli (tEPEC) genome downloaded from NCBI. Twenty-six (86%) of the analyzed genomes had the intimin encoding gene eae but of different types mostly correlating with their H types, e.g., H16, H26, H39, and H45 carried intimin type ε, β, κ, and α, respectively. They belonged to several E. coli phylogenetic groups, i.e., to phylogenetic group A, B1, B2, and D. Seven (50%) of our collected O157:non-H7 isolates were resistant to two or more antibiotics. Several mobile genetic elements, such as plasmids, insertion elements, and pathogenicity islands, carrying a set of virulence and resistance genes were found in the E. coli O157:non-H7 isolates. Core genome phylogenetic analysis showed that O157:non-H7 isolates probably evolved from different phylogenetic lineages and were distantly related to the E. coli O157:H7 lineage. We hypothesize that independent acquisition of mobile genetic elements by isolates of different lineages have contributed to the different molecular features of the O157:non-H7 strains. Although distantly related to the STEC O157, E. coli O157:non-H7 isolates from multiple genetic background could be considered as pathogen of concern for their diverse virulence and antibiotic resistance properties.
Collapse
Affiliation(s)
- Mithila Ferdous
- Department of Medical Microbiology, University Medical Center Groningen, University of Groningen Groningen, Netherlands
| | - Anna M D Kooistra-Smid
- Department of Medical Microbiology, University Medical Center Groningen, University of GroningenGroningen, Netherlands; Department of Medical Microbiology, Certe Laboratory for Infectious DiseasesGroningen, Netherlands
| | - Kai Zhou
- Department of Medical Microbiology, University Medical Center Groningen, University of GroningenGroningen, Netherlands; State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, Collaborative Innovation Centre for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, School of Medicine, Zhejiang UniversityHangzhou, China
| | - John W A Rossen
- Department of Medical Microbiology, University Medical Center Groningen, University of Groningen Groningen, Netherlands
| | - Alexander W Friedrich
- Department of Medical Microbiology, University Medical Center Groningen, University of Groningen Groningen, Netherlands
| |
Collapse
|
12
|
Gómez-Aldapa CA, Cerna-Cortes JF, Rangel-Vargas E, Torres-Vitela MR, Villarruel-López A, Gutiérrez-Alcántara EJ, Castro-Rosas J. Presence of Multidrug-Resistant Shiga Toxin-ProducingEscherichia coli, EnteropathogenicE. coliand EnterotoxigenicE. coli, on Raw Nopalitos (Opuntia ficus-indicaL.) and in Nopalitos Salads from Local Retail Markets in Mexico. Foodborne Pathog Dis 2016; 13:269-74. [DOI: 10.1089/fpd.2015.2065] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- Carlos A. Gómez-Aldapa
- Área Académica de Químicas, Instituto de Ciencias Básicas e Ingeniería, Universidad Autónoma del Estado de Hidalgo, Pachuca, México
| | - Jorge F. Cerna-Cortes
- Departamento de Microbiología, Escuela Nacional de Ciencias Biológicas-IPN, Ciudad de México, México
| | - Esmeralda Rangel-Vargas
- Área Académica de Químicas, Instituto de Ciencias Básicas e Ingeniería, Universidad Autónoma del Estado de Hidalgo, Pachuca, México
| | - Mdel Refugio Torres-Vitela
- Laboratorio de Microbiología Sanitaria, Centro Universitario de Ciencias Exactas e Ingenierías, Universidad de Guadalajara-Guadalajara, México
| | - Angelica Villarruel-López
- Laboratorio de Microbiología Sanitaria, Centro Universitario de Ciencias Exactas e Ingenierías, Universidad de Guadalajara-Guadalajara, México
| | - Eduardo J. Gutiérrez-Alcántara
- Área Académica de Químicas, Instituto de Ciencias Básicas e Ingeniería, Universidad Autónoma del Estado de Hidalgo, Pachuca, México
| | - Javier Castro-Rosas
- Área Académica de Químicas, Instituto de Ciencias Básicas e Ingeniería, Universidad Autónoma del Estado de Hidalgo, Pachuca, México
| |
Collapse
|