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Zhang P, Ji L, Wu X, Chen L, Yan W, Dong F. Prevalence, Genotypic Characteristics, and Antibiotic Resistance of Listeria monocytogenes From Retail Foods in Huzhou, China. J Food Prot 2024; 87:100307. [PMID: 38797247 DOI: 10.1016/j.jfp.2024.100307] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2024] [Revised: 05/21/2024] [Accepted: 05/21/2024] [Indexed: 05/29/2024]
Abstract
Listeria monocytogenes are considered to be the major foodborne pathogen worldwide. To understand the prevalence and potential risk of L. monocytogenes in retail foods, a total of 1243 retail foods in 12 food categories were sampled and screened for L. monocytogenes from 2020 to 2022 in Huzhou, China. A total of 46 out of 1234 samples were confirmed to be L. monocytogenes positive with a total rate of 3.7%. The contamination rate of seasoned raw meat (15.2%) was the highest, followed by raw poultry meat and raw livestock meat (9.9%) and salmon sashimi (9.5%). The L. monocytogenes isolates belonged to four serotypes, 1/2a,1/2b, 1/2c, and 4b, with the most prevalent serotype being 1/2a (47.9%). All isolates were grouped into 15 sequence types (STs) belonging to 14 clonal complexes (CCs) via multilocus sequence typing (MLST). The most prevalent ST was ST9/CC9 (23.9%), followed by ST3/CC3 (19.6%) and ST121/CC121 (17.4%). Notably, 11 STs were detected from ready-to-eat (RTE) foods, some of them have been verified to be strongly associated with clinical origin listeriosis cases, such as ST3, ST2, ST5, ST8, and ST87. Listeria pathogenicity islands 1 (LIPI-1) and LIPI-2 were detected in approximately all L. monocytogenes isolates, whereas the distribution of both LIPI-3 genes and LIPI-4 genes exhibited association with specific ST, with LIPI-3 in ST3 and ST288, and LIPI-4 in ST87. The strains carrying LIPI-3 and LIPI-4 virulence genes in this study were all isolated from RTE foods. Antimicrobial susceptibility tests showed that >90% of isolates were susceptible to PEN, AMP, ERY, CIP, SXT, VAN, CHL, and GEN, indicating the antibiotic treatment might be still efficient for most of the L. monocytogenes strains. However, for the three clinical first-line antibiotics (PEN, AMP, and GEN), we also observed three and four strains showing MIC values greater than the susceptibility standards for PEN and AMP, respectively, and one strain showing resistance to GEN.
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Affiliation(s)
- Peng Zhang
- Huzhou Center for Disease Control and Prevention, Huzhou 313000, China.
| | - Lei Ji
- Huzhou Center for Disease Control and Prevention, Huzhou 313000, China.
| | - Xiaofang Wu
- Huzhou Center for Disease Control and Prevention, Huzhou 313000, China.
| | - Liping Chen
- Huzhou Center for Disease Control and Prevention, Huzhou 313000, China.
| | - Wei Yan
- Huzhou Center for Disease Control and Prevention, Huzhou 313000, China.
| | - Fenfen Dong
- Huzhou Center for Disease Control and Prevention, Huzhou 313000, China.
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Manqele A, Adesiyun A, Mafuna T, Pierneef R, Moerane R, Gcebe N. Virulence Potential and Antimicrobial Resistance of Listeria monocytogenes Isolates Obtained from Beef and Beef-Based Products Deciphered Using Whole-Genome Sequencing. Microorganisms 2024; 12:1166. [PMID: 38930548 PMCID: PMC11205329 DOI: 10.3390/microorganisms12061166] [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: 04/23/2024] [Revised: 05/26/2024] [Accepted: 05/27/2024] [Indexed: 06/28/2024] Open
Abstract
Listeria monocytogenes is a ubiquitous bacterial pathogen that threatens the food chain and human health. In this study, whole-genome sequencing (WGS) was used for the genomic characterization of L. monocytogenes (n = 24) from beef and beef-based products. Multilocus Sequence Type (MLST) analysis revealed that ST204 of CC204 was the most common sequence type (ST). Other sequence types detected included ST1 and ST876 of CC1, ST5 of CC5, ST9 of CC9, ST88 of CC88, ST2 and ST1430 of CC2, and ST321 of CC321. Genes encoding for virulence factors included complete LIPI-1 (pfrA-hly-plcA-plcB-mpl-actA) from 54% (13/24) of the isolates of ST204, ST321, ST1430, and ST9 and internalin genes inlABC that were present in all the STs. All the L. monocytogenes STs carried four intrinsic/natural resistance genes, fosX, lin, norB, and mprF, conferring resistance to fosfomycin, lincosamide, quinolones, and cationic peptides, respectively. Plasmids pLGUG1 and J1776 were the most detected (54% each), followed by pLI100 (13%) and pLM5578 (7%). The prophage profile, vB_LmoS_188, was overrepresented amongst the isolates, followed by LP_101, LmoS_293_028989, LP_030_2_021539, A006, and LP_HM00113468. Listeria genomic island 2 (LGI-2) was found to be present in all the isolates, while Listeria genomic island 3 (LGI-3) was present in a subset of isolates (25%). The type VII secretion system was found in 42% of the isolates, and sortase A was present in all L. monocytogenes genomes. Mobile genetic elements and genomic islands did not harbor any virulence, resistance, or environmental adaptation genes that may benefit L. monocytogenes. All the STs did not carry genes that confer resistance to first-line antibiotics used for the treatment of listeriosis. The characterization of L. monocytogenes in our study highlighted the environmental resistance and virulence potential of L. monocytogenes and the risk posed to the public, as this bacterium is frequently found in food and food processing environments.
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Affiliation(s)
- Ayanda Manqele
- Department of Production Animal Studies, Faculty of Veterinary Science, University of Pretoria, Pretoria 0110, South Africa
- Agricultural Research Council-Onderstepoort Veterinary Research, Pretoria 0110, South Africa
| | - Abiodun Adesiyun
- Department of Production Animal Studies, Faculty of Veterinary Science, University of Pretoria, Pretoria 0110, South Africa
- Department of Basic Veterinary Sciences, University of the West Indies, St. Augustine 999183, Trinidad and Tobago
| | - Thendo Mafuna
- Department of Biochemistry, University of Johannesburg, Johannesburg 20062028, South Africa
| | - Rian Pierneef
- Department of Biochemistry, Genetics and Microbiology, University of Pretoria, Pretoria 0001, South Africa
- Centre for Bioinformatics and Computational Biology, University of Pretoria, Pretoria 0001, South Africa
- SARChI Chair: Marine Microbiomics, microbiome@UP, Department of Biochemistry, Genetics and Microbiology, University of Pretoria, Pretoria 0001, South Africa
| | - Rebone Moerane
- Department of Production Animal Studies, Faculty of Veterinary Science, University of Pretoria, Pretoria 0110, South Africa
| | - Nomakorinte Gcebe
- Department of Production Animal Studies, Faculty of Veterinary Science, University of Pretoria, Pretoria 0110, South Africa
- Agricultural Research Council-Onderstepoort Veterinary Research, Pretoria 0110, South Africa
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Xu W, Peng MJ, Lu LS, Guo ZJ, Li AM, Li J, Cheng Y, Li JY, Li YJ, Lian JQ, Li Y, Sun Y, Zhang WL, Zhang Y. Clinical Characteristics and Fatality Risk Factors for Patients with Listeria monocytogenes Infection: A 12-Year Hospital-Based Study in Xi'an, China. Infect Dis Ther 2024; 13:1359-1378. [PMID: 38733495 PMCID: PMC11128421 DOI: 10.1007/s40121-024-00986-3] [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: 02/28/2024] [Accepted: 04/30/2024] [Indexed: 05/13/2024] Open
Abstract
INTRODUCTION Listeriosis is a severe food-borne disease caused by Listeria monocytogenes infection. The data of listeriosis in Xi'an population are limited. The aim of this study is to evaluate the clinical features and fatality risk factors for listeriosis in three tertiary-care hospitals in Xi'an, China METHODS: The characteristics of demographic data, underlying diseases, clinical manifestations, laboratory indicators, cranial imaging examination, antibiotics therapeutic schemes, and clinical outcomes were collected between 2011 and 2023. Logistic regression analysis was performed. RESULTS Seventy-one etiologically confirmed listeriosis patients were enrolled, including 12 neonatal and 59 non-neonatal cases. The majority of neonatal listeriosis presented as preterm (50%) and fetal distress (75%). The main clinical manifestations of non-neonatal listeriosis included fever (88%), headache (32%), disorder of consciousness (25%), vomiting (17%), abdominal pain (12%), and convulsions (8%). The fatality rate in neonatal cases was higher than in non-neonatal listeriosis (42 vs. 17%). Although no deaths were reported in maternal listeriosis, only two of 23 patients had an uneventful obstetrical outcome. Five maternal listeriosis delivered culture-positive neonates, three of whom decreased within 1 week post-gestation due to severe complications. Twenty-eight cases were neurolisteriosis and 43 cases were bacteremia. Neurolisteriosis had a higher fatality rate compared with bacteremia listeriosis (36 vs. 12%). The main neuroradiological images were cerebral edema/hydrocephalus, intracranial infection, and cerebral hernia. Listeria monocytogenes showed extremely low resistance to ampicillin (two isolates) and penicillin (one isolate). The fatality risk factors were the involvement of the central nervous system, hyperbilirubinemia, and hyponatremia for all enrolled subjects. Hyperuricemia contributed to the elevation of fatality risk in non-neonatal listeriosis. CONCLUSIONS When the patients suffered with symptoms of fever and central nervous system infection, they should be alert to the possibility of listeriosis. Early administration of ampicillin- or penicillin-based therapy might be beneficial for recovery of listeriosis.
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Affiliation(s)
- Wen Xu
- Department of Infectious Diseases, Tangdu Hospital, Fourth Military Medical University, 569 Xinsi Rd, Baqiao District, Xi'an, 710038, Shaanxi, China
- Department of Disease Prevention and Control, Tangdu Hospital, Fourth Military Medical University, Xi'an, 710038, Shaanxi, China
| | - Mei-Juan Peng
- Department of Infectious Diseases, Tangdu Hospital, Fourth Military Medical University, 569 Xinsi Rd, Baqiao District, Xi'an, 710038, Shaanxi, China
| | - Lin-Shan Lu
- Department of Obstetrics and Gynecology, Tangdu Hospital, Fourth Military Medical University, Xi'an, 710038, Shaanxi, China
| | - Zhen-Jun Guo
- Department of Pharmacy, Shaanxi Provincial People's Hospital, Xi'an, 710068, Shaanxi, China
| | - A-Min Li
- Department of Infectious Diseases, Tangdu Hospital, Fourth Military Medical University, 569 Xinsi Rd, Baqiao District, Xi'an, 710038, Shaanxi, China
| | - Jing Li
- Department of Infectious Diseases, Tangdu Hospital, Fourth Military Medical University, 569 Xinsi Rd, Baqiao District, Xi'an, 710038, Shaanxi, China
| | - Yan Cheng
- Department of Infectious Diseases, Tangdu Hospital, Fourth Military Medical University, 569 Xinsi Rd, Baqiao District, Xi'an, 710038, Shaanxi, China
| | - Jia-Yu Li
- Department of Infectious Diseases, Tangdu Hospital, Fourth Military Medical University, 569 Xinsi Rd, Baqiao District, Xi'an, 710038, Shaanxi, China
| | - Yi-Jun Li
- Department of Epidemiology, Ministry of Education Key Lab of Hazard Assessment and Control in Special Operational Environment, School of Public Health, Fourth Military Medical University, 17 Changle West Rd, Xi'an, 710032, Shaanxi, China
| | - Jian-Qi Lian
- Department of Infectious Diseases, Tangdu Hospital, Fourth Military Medical University, 569 Xinsi Rd, Baqiao District, Xi'an, 710038, Shaanxi, China
| | - Yu Li
- Department of Infectious Diseases, Shaanxi Provincial People's Hospital, 256 West Youyi Rd, Xi'an, 710068, Shaanxi, China.
| | - Yang Sun
- Department of Rehabilitation Medicine, The Second Affiliated Hospital of Xi'an Medical University, 167 Fangdong St, Xi'an, 710038, Shaanxi, China.
| | - Wei-Lu Zhang
- Department of Epidemiology, Ministry of Education Key Lab of Hazard Assessment and Control in Special Operational Environment, School of Public Health, Fourth Military Medical University, 17 Changle West Rd, Xi'an, 710032, Shaanxi, China.
| | - Ye Zhang
- Department of Infectious Diseases, Tangdu Hospital, Fourth Military Medical University, 569 Xinsi Rd, Baqiao District, Xi'an, 710038, Shaanxi, China.
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Pracser N, Zaiser A, Ying HMK, Pietzka A, Wagner M, Rychli K. Diverse Listeria monocytogenes in-house clones are present in a dynamic frozen vegetable processing environment. Int J Food Microbiol 2024; 410:110479. [PMID: 37977080 DOI: 10.1016/j.ijfoodmicro.2023.110479] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2023] [Revised: 11/02/2023] [Accepted: 11/03/2023] [Indexed: 11/19/2023]
Abstract
Listeria (L.) monocytogenes is of global concern for food safety as the listeriosis-causing pathogen is widely distributed in the food processing environments, where it can survive for a long time. Frozen vegetables contaminated with L. monocytogenes were recently identified as the source of two large listeriosis outbreaks in the EU and US. So far, only a few studies have investigated the occurrence and behavior of Listeria in frozen vegetables and the associated processing environment. This study investigates the occurrence of L. monocytogenes and other Listeria spp. in a frozen vegetable processing environment and in frozen vegetable products. Using whole genome sequencing (WGS), the distribution of sequence types (MLST-STs) and core genome sequence types (cgMLST-CT) of L. monocytogenes were assessed, and in-house clones were identified. Comparative genomic analyses and phenotypical characterization of the different MLST-STs and isolates were performed, including growth ability under low temperatures, as well as survival of freeze-thaw cycles. Listeria were widely disseminated in the processing environment and five in-house clones namely ST451-CT4117, ST20-CT3737, ST8-CT1349, ST8-CT6243, ST224-CT5623 were identified among L. monocytogenes isolates present in environmental swab samples. Subsequently, the identified in-house clones were also detected in product samples. Conveyor belts were a major source of contamination in the processing environment. A wide repertoire of stress resistance markers supported the colonization and survival of L. monocytogenes in the frozen vegetable processing facility. The presence of ArgB was significantly associated with in-house clones. Significant differences were also observed in the growth rate between different MLST-STs at low temperatures (4 °C and 10 °C), but not between in-house and non-in-house isolates. All isolates harbored major virulence genes such as full length InlA and InlB and LIPI-1, yet there were differences between MLST-STs in the genomic content. The results of this study demonstrate that WGS is a strong tool for tracing contamination sources and transmission routes, and for identifying in-house clones. Further research targeting the co-occurring microbiota and the presence of biofilms is needed to fully understand the mechanism of colonization and persistence in a food processing environment.
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Affiliation(s)
- Nadja Pracser
- FFoQSI GmbH-Austrian Competence Centre for Feed and Food Quality, Safety and Innovation, Technopark 1D, 3430 Tulln, Austria.
| | - Andreas Zaiser
- Unit of Food Microbiology, Institute for Food Safety, Food Technology and Veterinary Public Health, University of Veterinary Medicine Vienna, Veterinaerplatz 1, 1210 Vienna, Austria.
| | - Hui Min Katharina Ying
- Unit of Food Microbiology, Institute for Food Safety, Food Technology and Veterinary Public Health, University of Veterinary Medicine Vienna, Veterinaerplatz 1, 1210 Vienna, Austria
| | - Ariane Pietzka
- Austrian National Reference Laboratory for Listeria monocytogenes, Institute of Medical Microbiology and Hygiene, Austrian Agency for Health and Food Safety, Beethovenstrasse 6, 8010 Graz, Austria.
| | - Martin Wagner
- FFoQSI GmbH-Austrian Competence Centre for Feed and Food Quality, Safety and Innovation, Technopark 1D, 3430 Tulln, Austria; Unit of Food Microbiology, Institute for Food Safety, Food Technology and Veterinary Public Health, University of Veterinary Medicine Vienna, Veterinaerplatz 1, 1210 Vienna, Austria.
| | - Kathrin Rychli
- Unit of Food Microbiology, Institute for Food Safety, Food Technology and Veterinary Public Health, University of Veterinary Medicine Vienna, Veterinaerplatz 1, 1210 Vienna, Austria.
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Zhang J, Liu Z, Li Z, Xu C, Wang H, Yang R, Liu L. Clinical and Genomic Characteristics of a Clinical Listeria Monocytogenes ST120 Isolate Recovered from a Pregnant Woman. Infect Drug Resist 2024; 17:229-237. [PMID: 38283108 PMCID: PMC10821662 DOI: 10.2147/idr.s446860] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2023] [Accepted: 01/18/2024] [Indexed: 01/30/2024] Open
Abstract
Background Maternal-fetal listeriosis, caused by Listeria monocytogenes, is a rare but serious infection. Herein, we report the clinical and genomic characteristics of a clinical L. monocytogenes ST120 isolate recovered from a pregnant woman. Methods The clinical symptoms and treatment in pregnant woman were described in detail. Whole genome sequencing (WGS) was performed on the L. monocytogenes isolate SJZ_LM001, and the genomic characterization of the isolate was deeply analyzed. Results The clinical symptoms in pregnant women were mainly fever, and the placenta experienced severe inflammation. The pregnant woman was treated with ampicillin for effective anti-infective therapy. Genomic analysis showed that isolate SJZ_LM001 is sequence type (ST) 120, belong to clonal complex (CC)8 and lineage II of L. monocytogenes. Additionally, the isolates SJZ_LM001 harbored a novel plasmid pSJZ_LM001, which carried arsenical resistance genes (arsACD and acr3), and cadmium resistance genes (cadAC). Drug susceptibility testing showed that the isolate SJZ-LM001 was susceptible to ampicillin, meropenem, penicillin, and cotrimoxazole. Conclusion This is the first to identify a clinical case of infection in a pregnant woman caused by ST120 L. monocytogenes in China. These findings could benefit our understanding of the genomic characteristics of L. monocytogenes, and the pregnancy-related listeriosis and providing early diagnosis and effective targeted treatment.
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Affiliation(s)
- Jingrui Zhang
- Department of Clinical Laboratory, The Fourth Hospital of Shijiazhuang, Shijiazhuang, Hebei, People’s Republic of China
| | - Zengbin Liu
- Department of Clinical Laboratory, The Second Hospital of Hebei Medical University, Shijiazhuang, Hebei, People’s Republic of China
| | - Zhirong Li
- Department of Clinical Laboratory, The Second Hospital of Hebei Medical University, Shijiazhuang, Hebei, People’s Republic of China
| | - Caihong Xu
- Department of Clinical Laboratory, The Fourth Hospital of Shijiazhuang, Shijiazhuang, Hebei, People’s Republic of China
| | - Hongbin Wang
- Department of Gynecology and Obstetrics, The Fourth Hospital of Shijiazhuang, Shijiazhuang, Hebei, People’s Republic of China
| | - Rugang Yang
- Department of Clinical Laboratory, The Fourth Hospital of Shijiazhuang, Shijiazhuang, Hebei, People’s Republic of China
| | - Li Liu
- Department of Clinical Laboratory, The Fourth Hospital of Shijiazhuang, Shijiazhuang, Hebei, People’s Republic of China
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Zakrzewski AJ, Gajewska J, Chajęcka-Wierzchowska W, Zadernowska A. Insights into the genetic diversity of Listeria monocytogenes from bivalves. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 908:168481. [PMID: 37972778 DOI: 10.1016/j.scitotenv.2023.168481] [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: 09/25/2023] [Revised: 11/08/2023] [Accepted: 11/08/2023] [Indexed: 11/19/2023]
Abstract
In the present study, 30 L. monocytogenes strains isolated from bivalves purchased in Poland were characterized by whole genome sequencing (WGS). The Core Genome Multilocus Sequence Typing (cgMLST) analysis revealed that the most frequent serogroups were IIa; sequence types (ST) were ST101, ST21 and ST325; and clonal complexe (CC) were CC101. Despite differential genotypic subtypes, most strains had similar antimicrobial resistance profiles. Most strains had genetic determinants of resistance to many groups of antibiotics; aminoglycosides, fluoroquinolones, lincosamides, macrolides, peptides, phosphotic acids and sulfonamides. Phenotypic resistance analyzes showed that most strains were resistant to fosfomycin, additionally, resistance to lincomycin and tetracycline was observed in some strains. Almost all L. monocytogens strains classified as biofilm producers, which is related to the presence of genetic determinants (e.g. actA, prfA, dltA, fbpA, luxS). The findings of our study emphasize the potential risk to human health posed by L. monocytogenes strains obtained from bivalve mollusks. Additional investigations, particularly focusing on biofilm, may enhance our comprehension of the underlying mechanisms responsible for the remarkable ability of L. monocytogenes to remain on the shells of bivalves.
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Affiliation(s)
- Arkadiusz Józef Zakrzewski
- Department of Food Microbiology, Meat Technology and Chemistry, University of Warmia and Mazury, Plac Cieszyński 1, 10-726 Olsztyn, Poland.
| | - Joanna Gajewska
- Department of Food Microbiology, Meat Technology and Chemistry, University of Warmia and Mazury, Plac Cieszyński 1, 10-726 Olsztyn, Poland
| | - Wioleta Chajęcka-Wierzchowska
- Department of Food Microbiology, Meat Technology and Chemistry, University of Warmia and Mazury, Plac Cieszyński 1, 10-726 Olsztyn, Poland
| | - Anna Zadernowska
- Department of Food Microbiology, Meat Technology and Chemistry, University of Warmia and Mazury, Plac Cieszyński 1, 10-726 Olsztyn, Poland
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Liao X, Deng R, Warriner K, Ding T. Antibiotic resistance mechanism and diagnosis of common foodborne pathogens based on genotypic and phenotypic biomarkers. Compr Rev Food Sci Food Saf 2023; 22:3212-3253. [PMID: 37222539 DOI: 10.1111/1541-4337.13181] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2022] [Revised: 04/22/2023] [Accepted: 05/06/2023] [Indexed: 05/25/2023]
Abstract
The emergence of antibiotic-resistant bacteria due to the overuse or inappropriate use of antibiotics has become a significant public health concern. The agri-food chain, which serves as a vital link between the environment, food, and human, contributes to the large-scale dissemination of antibiotic resistance, posing a concern to both food safety and human health. Identification and evaluation of antibiotic resistance of foodborne bacteria is a crucial priority to avoid antibiotic abuse and ensure food safety. However, the conventional approach for detecting antibiotic resistance heavily relies on culture-based methods, which are laborious and time-consuming. Therefore, there is an urgent need to develop accurate and rapid tools for diagnosing antibiotic resistance in foodborne pathogens. This review aims to provide an overview of the mechanisms of antibiotic resistance at both phenotypic and genetic levels, with a focus on identifying potential biomarkers for diagnosing antibiotic resistance in foodborne pathogens. Furthermore, an overview of advances in the strategies based on the potential biomarkers (antibiotic resistance genes, antibiotic resistance-associated mutations, antibiotic resistance phenotypes) for antibiotic resistance analysis of foodborne pathogens is systematically exhibited. This work aims to provide guidance for the advancement of efficient and accurate diagnostic techniques for antibiotic resistance analysis in the food industry.
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Affiliation(s)
- Xinyu Liao
- Department of Food Science and Nutrition, Zhejiang University, Hangzhou, Zhejiang, China
- School of Mechanical and Energy Engineering, NingboTech University, Ningbo, Zhejiang, China
- Future Food Laboratory, Innovation Center of Yangtze River Delta, Zhejiang University, Jiashan, Zhejiang, China
| | - Ruijie Deng
- College of Biomass Science and Engineering, Healthy Food Evaluation Research Center, Sichuan University, Chengdu, Sichuan, China
| | - Keith Warriner
- Department of Food Science, University of Guelph, Guelph, Ontario, Canada
| | - Tian Ding
- Department of Food Science and Nutrition, Zhejiang University, Hangzhou, Zhejiang, China
- Future Food Laboratory, Innovation Center of Yangtze River Delta, Zhejiang University, Jiashan, Zhejiang, China
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Magagna G, Gori M, Russini V, De Angelis V, Spinelli E, Filipello V, Tranquillo VM, De Marchis ML, Bossù T, Fappani C, Tanzi E, Finazzi G. Evaluation of the Virulence Potential of Listeria monocytogenes through the Characterization of the Truncated Forms of Internalin A. Int J Mol Sci 2023; 24:10141. [PMID: 37373288 DOI: 10.3390/ijms241210141] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2023] [Revised: 06/09/2023] [Accepted: 06/12/2023] [Indexed: 06/29/2023] Open
Abstract
Listeria monocytogenes is a widespread Gram-positive pathogenic bacterium that causes listeriosis, a rather rare but severe foodborne disease. Pregnant women, infants, the elderly, and immunocompromised individuals are considered particularly at risk. L. monocytogenes can contaminate food and food-processing environments. In particular, ready-to-eat (RTE) products are the most common source associated with listeriosis. L. monocytogenes virulence factors include internalin A (InlA), a surface protein known to facilitate bacterial uptake by human intestinal epithelial cells that express the E-cadherin receptor. Previous studies have demonstrated that the presence of premature stop codon (PMSC) mutations naturally occurring in inlA lead to the production of a truncated protein correlated with attenuate virulence. In this study, 849 L. monocytogenes isolates, collected from food, food-processing plants, and clinical cases in Italy, were typed and analyzed for the presence of PMSCs in the inlA gene using Sanger sequencing or whole-genome sequencing (WGS). PMSC mutations were found in 27% of the isolates, predominantly in those belonging to hypovirulent clones (ST9 and ST121). The presence of inlA PMSC mutations in food and environmental isolates was higher than that in clinical isolates. The results reveal the distribution of the virulence potential of L. monocytogenes circulating in Italy and could help to improve risk assessment approaches.
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Affiliation(s)
- Giulia Magagna
- Food Safety Department, Istituto Zooprofilattico Sperimentale della Lombardia e dell'Emilia Romagna (IZSLER), Via A. Bianchi 9, 25124 Brescia, Italy
| | - Maria Gori
- Department of Health Sciences, Università degli Studi di Milano, 20133 Milan, Italy
- Coordinated Research Centre EpiSoMI, Università degli Studi di Milano, 20133 Milan, Italy
| | - Valeria Russini
- Food Microbiology Unit, Istituto Zooprofilattico Sperimentale del Lazio e della Toscana "M. Aleandri", Via Appia Nuova, 1411, 00178 Rome, Italy
| | - Veronica De Angelis
- Food Microbiology Unit, Istituto Zooprofilattico Sperimentale del Lazio e della Toscana "M. Aleandri", Via Appia Nuova, 1411, 00178 Rome, Italy
| | - Elisa Spinelli
- Food Safety Department, Istituto Zooprofilattico Sperimentale della Lombardia e dell'Emilia Romagna (IZSLER), Via A. Bianchi 9, 25124 Brescia, Italy
| | - Virginia Filipello
- Food Safety Department, Istituto Zooprofilattico Sperimentale della Lombardia e dell'Emilia Romagna (IZSLER), Via A. Bianchi 9, 25124 Brescia, Italy
| | - Vito Massimo Tranquillo
- Programmazione dei Servizi e Controllo di Gestione, Istituto Zooprofilattico Sperimentale della Lombardia e dell'Emilia Romagna (IZSLER), Via A. Bianchi 9, 25124 Brescia, Italy
| | - Maria Laura De Marchis
- Food Microbiology Unit, Istituto Zooprofilattico Sperimentale del Lazio e della Toscana "M. Aleandri", Via Appia Nuova, 1411, 00178 Rome, Italy
| | - Teresa Bossù
- Food Microbiology Unit, Istituto Zooprofilattico Sperimentale del Lazio e della Toscana "M. Aleandri", Via Appia Nuova, 1411, 00178 Rome, Italy
| | - Clara Fappani
- Department of Health Sciences, Università degli Studi di Milano, 20133 Milan, Italy
- Coordinated Research Centre EpiSoMI, Università degli Studi di Milano, 20133 Milan, Italy
- Department of Clinical Sciences and Community Health, Università degli Studi di Milano, 20122 Milan, Italy
| | - Elisabetta Tanzi
- Department of Health Sciences, Università degli Studi di Milano, 20133 Milan, Italy
- Coordinated Research Centre EpiSoMI, Università degli Studi di Milano, 20133 Milan, Italy
| | - Guido Finazzi
- Food Safety Department, Istituto Zooprofilattico Sperimentale della Lombardia e dell'Emilia Romagna (IZSLER), Via A. Bianchi 9, 25124 Brescia, Italy
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Guidi F, Centorotola G, Chiaverini A, Iannetti L, Schirone M, Visciano P, Cornacchia A, Scattolini S, Pomilio F, D’Alterio N, Torresi M. The Slaughterhouse as Hotspot of CC1 and CC6 Listeria monocytogenes Strains with Hypervirulent Profiles in an Integrated Poultry Chain of Italy. Microorganisms 2023; 11:1543. [PMID: 37375045 PMCID: PMC10305255 DOI: 10.3390/microorganisms11061543] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2023] [Revised: 05/24/2023] [Accepted: 06/06/2023] [Indexed: 06/29/2023] Open
Abstract
In Europe, very few studies are available regarding the diversity of Listeria monocytogenes (L. monocytogenes) clonal complexes (CCs) and sequence types (ST) in poultry and on the related typing of isolates using whole genome sequencing (WGS). In this study, we used a WGS approach to type 122 L. monocytogenes strains isolated from chicken neck skin samples collected in two different slaughterhouses of an integrated Italian poultry company. The studied strains were classified into five CCs: CC1-ST1 (21.3%), CC6-ST6 (22.9%), CC9-ST9 (44.2%), CC121-ST121 (10.6%) and CC193-ST193 (0.8%). CC1 and CC6 strains presented a virulence gene profile composed of 60 virulence genes and including the Listeria Pathogenicity Island 3, aut_IVb, gltA and gltB. According to cgMLST and SNPs analysis, long-term persistent clusters belonging to CC1 and CC6 were found in one of the two slaughterhouses. The reasons mediating the persistence of these CCs (up to 20 months) remain to be elucidated, and may involve the presence and the expression of stress response and environmental adaptation genes including heavy metals resistance genes (cadAC, arsBC, CsoR-copA-copZ), multidrug efflux pumps (mrpABCEF, EmrB, mepA, bmrA, bmr3, norm), cold-shock tolerance (cspD) and biofilm-formation determinants (lmo0673, lmo2504, luxS, recO). These findings indicated a serious risk of poultry finished products contamination with hypervirulent L. monocytogenes clones and raised concern for the consumer health. In addition to the AMR genes norB, mprF, lin and fosX, ubiquitous in L. monocytogenes strains, we also identified parC for quinolones, msrA for macrolides and tetA for tetracyclines. Although the phenotypical expression of these AMR genes was not tested, none of them is known to confer resistance to the primary antibiotics used to treat listeriosis The obtained results increase the data on the L. monocytogenes clones circulating in Italy and in particular in the poultry chain.
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Affiliation(s)
- Fabrizia Guidi
- Istituto Zooprofilattico Sperimentale Dell’abruzzo e del Molise “G. Caporale”, Via Campo Boario, 64100 Teramo, Italy; (F.G.); (A.C.); (L.I.); (A.C.); (S.S.); (N.D.); (M.T.)
| | - Gabriella Centorotola
- Istituto Zooprofilattico Sperimentale Dell’abruzzo e del Molise “G. Caporale”, Via Campo Boario, 64100 Teramo, Italy; (F.G.); (A.C.); (L.I.); (A.C.); (S.S.); (N.D.); (M.T.)
| | - Alexandra Chiaverini
- Istituto Zooprofilattico Sperimentale Dell’abruzzo e del Molise “G. Caporale”, Via Campo Boario, 64100 Teramo, Italy; (F.G.); (A.C.); (L.I.); (A.C.); (S.S.); (N.D.); (M.T.)
| | - Luigi Iannetti
- Istituto Zooprofilattico Sperimentale Dell’abruzzo e del Molise “G. Caporale”, Via Campo Boario, 64100 Teramo, Italy; (F.G.); (A.C.); (L.I.); (A.C.); (S.S.); (N.D.); (M.T.)
| | - Maria Schirone
- Faculty of Bioscience and Technology for Food, Agriculture and Environment, University of Teramo, Via R. Balzarini, 1, 64100 Teramo, Italy; (M.S.); (P.V.)
| | - Pierina Visciano
- Faculty of Bioscience and Technology for Food, Agriculture and Environment, University of Teramo, Via R. Balzarini, 1, 64100 Teramo, Italy; (M.S.); (P.V.)
| | - Alessandra Cornacchia
- Istituto Zooprofilattico Sperimentale Dell’abruzzo e del Molise “G. Caporale”, Via Campo Boario, 64100 Teramo, Italy; (F.G.); (A.C.); (L.I.); (A.C.); (S.S.); (N.D.); (M.T.)
| | - Silvia Scattolini
- Istituto Zooprofilattico Sperimentale Dell’abruzzo e del Molise “G. Caporale”, Via Campo Boario, 64100 Teramo, Italy; (F.G.); (A.C.); (L.I.); (A.C.); (S.S.); (N.D.); (M.T.)
| | - Francesco Pomilio
- Istituto Zooprofilattico Sperimentale Dell’abruzzo e del Molise “G. Caporale”, Via Campo Boario, 64100 Teramo, Italy; (F.G.); (A.C.); (L.I.); (A.C.); (S.S.); (N.D.); (M.T.)
| | - Nicola D’Alterio
- Istituto Zooprofilattico Sperimentale Dell’abruzzo e del Molise “G. Caporale”, Via Campo Boario, 64100 Teramo, Italy; (F.G.); (A.C.); (L.I.); (A.C.); (S.S.); (N.D.); (M.T.)
| | - Marina Torresi
- Istituto Zooprofilattico Sperimentale Dell’abruzzo e del Molise “G. Caporale”, Via Campo Boario, 64100 Teramo, Italy; (F.G.); (A.C.); (L.I.); (A.C.); (S.S.); (N.D.); (M.T.)
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