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Wang Q, Dong K, Liu X, Li W, Bian Q. Genetic characteristics of chromosomally integrated carbapenemase gene (bla NDM-1) in isolates of Proteus mirabilis. BMC Microbiol 2024; 24:216. [PMID: 38890647 PMCID: PMC11186132 DOI: 10.1186/s12866-024-03365-7] [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: 02/17/2024] [Accepted: 06/05/2024] [Indexed: 06/20/2024] Open
Abstract
OBJECTIVE This study aims to conduct an in-depth genomic analysis of a carbapenem-resistant Proteus mirabilis strain to uncover the distribution and mechanisms of its resistance genes. METHODS The research primarily utilized whole-genome sequencing to analyze the genome of the Proteus mirabilis strain. Additionally, antibiotic susceptibility tests were conducted to evaluate the strain's sensitivity to various antibiotics, and related case information was collected to analyze the clinical distribution characteristics of the resistant strain. RESULTS Study on bacterial strain WF3430 from a tetanus and pneumonia patient reveals resistance to multiple antibiotics due to extensive use. Whole-genome sequencing exposes a 4,045,480 bp chromosome carrying 29 antibiotic resistance genes. Two multidrug-resistant (MDR) gene regions, resembling Tn6577 and Tn6589, were identified (MDR Region 1: 64.83 Kb, MDR Region 2: 85.64 Kbp). These regions, consist of integrative and conjugative elements (ICE) structures, highlight the intricate multidrug resistance in clinical settings. CONCLUSION This study found that a CR-PMI strain exhibits a unique mechanism for acquiring antimicrobial resistance genes, such as blaNDM-1, located on the chromosome instead of plasmids. According to the results, there is increasing complexity in the mechanisms of horizontal transmission of resistance, necessitating a comprehensive understanding and implementation of targeted control measures in both hospital and community settings.
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Affiliation(s)
- Qingyu Wang
- Department of Clinical Laboratory, Weifang People's Hospital, Weifang, China
| | - Kai Dong
- Department of Emergency, Weifang People's Hospital, Weifang, China
| | - Xudong Liu
- Department of Clinical Laboratory, Weifang People's Hospital, Weifang, China
| | - Wanxiang Li
- Department of Clinical Laboratory, Weifang People's Hospital, Weifang, China
| | - Qianyu Bian
- Department of Hematology, Weifang People's Hospital, Weifang, China.
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Razaq L, Uddin F, Ali S, Abbasi SM, Sohail M, Yousif NE, Abo-Dief HM, El-Bahy ZM. In Vitro Activity of New β-Lactamase Inhibitor Combinations against blaNDM, blaKPC, and ESBL-Producing Enterobacteriales Uropathogens. Antibiotics (Basel) 2023; 12:1481. [PMID: 37887182 PMCID: PMC10604030 DOI: 10.3390/antibiotics12101481] [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: 08/25/2023] [Revised: 09/21/2023] [Accepted: 09/22/2023] [Indexed: 10/28/2023] Open
Abstract
Antibiotic resistance in uropathogens has increased substantially and severely affected treatment of urinary tract infections (UTIs). Lately, some new formulations, including meropenem/vaborbactam (MEV), ceftazidime/avibactam (CZA), and ceftolozane/tazobactam (C/T) have been introduced to treat infections caused by drug-resistant pathogens. This study was designed to screen Enterobacteriales isolates from UTI patients and to assess their antimicrobial resistance pattern, particularly against the mentioned (new) antibiotics. Phenotypic screening of extended-spectrum β-lactamase (ESBL) and carbapenem resistance was followed by inhibitor-based assays to detect K. pneumoniae carbapenemase (KPC), metallo-β-lactamase (MBL), and class D oxacillinases (OXA). Among 289 Enterobacteriales, E. coli (66.4%) was the most predominant pathogen, followed by K. pneumoniae (13.8%) and P. mirabilis (8.3%). The isolates showed higher resistance to penicillins and cephalosporins (70-87%) than to non-β-lactam antimicrobials (33.2-41.5%). NDM production was a common feature among carbapenem-resistant (CR) isolates, followed by KPC and OXA. ESBL producers were susceptible to the tested new antibiotics, but NDM-positive isolates appeared resistant to these combinations. KPC-producers showed resistance to only C/T. ESBLs and carbapenemase encoding genes were located on plasmids and most of the genes were successfully transferred to recipient cells. This study revealed that MEV and CZA had significant activity against ESBL and KPC producers.
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Affiliation(s)
- Lubna Razaq
- Department of Microbiology, University of Karachi, Karachi 75270, Pakistan;
| | - Fakhur Uddin
- Department of Microbiology, Basic Medical Sciences Institute (BMSI), Jinnah Postgraduate Medical Center (JPMC), Karachi 75510, Pakistan
| | - Shahzad Ali
- Department of Urology, Jinnah Postgraduate Medical Center (JPMC), Karachi 75510, Pakistan;
| | - Shah Muhammad Abbasi
- Department of Main Clinical Laboratory, Jinnah Postgraduate Medical Center (JPMC), Karachi 75510, Pakistan;
| | - Muhammad Sohail
- Department of Microbiology, University of Karachi, Karachi 75270, Pakistan;
| | - Nabila E. Yousif
- Department of Science and Technology, University College-Ranyah, Taif University, P.O. Box 11099, Taif 21944, Saudi Arabia; (N.E.Y.); (H.M.A.-D.)
| | - Hala M. Abo-Dief
- Department of Science and Technology, University College-Ranyah, Taif University, P.O. Box 11099, Taif 21944, Saudi Arabia; (N.E.Y.); (H.M.A.-D.)
| | - Zeinhom M. El-Bahy
- Department of Chemistry, Faculty of Science, Al-Azhar University, Cairo 11884, Egypt;
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Ramírez-Castillo FY, Guerrero-Barrera AL, Avelar-González FJ. An overview of carbapenem-resistant organisms from food-producing animals, seafood, aquaculture, companion animals, and wildlife. Front Vet Sci 2023; 10:1158588. [PMID: 37397005 PMCID: PMC10311504 DOI: 10.3389/fvets.2023.1158588] [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: 02/04/2023] [Accepted: 05/23/2023] [Indexed: 07/04/2023] Open
Abstract
Carbapenem resistance (CR) is a major global health concern. CR is a growing challenge in clinical settings due to its rapid dissemination and low treatment options. The characterization of its molecular mechanisms and epidemiology are highly studied. Nevertheless, little is known about the spread of CR in food-producing animals, seafood, aquaculture, wildlife, their environment, or the health risks associated with CR in humans. In this review, we discuss the detection of carbapenem-resistant organisms and their mechanisms of action in pigs, cattle, poultry, seafood products, companion animals, and wildlife. We also pointed out the One Health approach as a strategy to attempt the emergency and dispersion of carbapenem-resistance in this sector and to determine the role of carbapenem-producing bacteria in animals among human public health risk. A higher occurrence of carbapenem enzymes in poultry and swine has been previously reported. Studies related to poultry have highlighted P. mirabilis, E. coli, and K. pneumoniae as NDM-5- and NDM-1-producing bacteria, which lead to carbapenem resistance. OXA-181, IMP-27, and VIM-1 have also been detected in pigs. Carbapenem resistance is rare in cattle. However, OXA- and NDM-producing bacteria, mainly E. coli and A. baumannii, are cattle's leading causes of carbapenem resistance. A high prevalence of carbapenem enzymes has been reported in wildlife and companion animals, suggesting their role in the cross-species transmission of carbapenem-resistant genes. Antibiotic-resistant organisms in aquatic environments should be considered because they may act as reservoirs for carbapenem-resistant genes. It is urgent to implement the One Health approach worldwide to make an effort to contain the dissemination of carbapenem resistance.
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Affiliation(s)
- Flor Y. Ramírez-Castillo
- Laboratorio de Biología Celular y Tisular, Departamento de Morfología, Centro de Ciencias Básicas, Universidad Autónoma de Aguascalientes, Aguascalientes, Ags, Mexico
| | - Alma L. Guerrero-Barrera
- Laboratorio de Biología Celular y Tisular, Departamento de Morfología, Centro de Ciencias Básicas, Universidad Autónoma de Aguascalientes, Aguascalientes, Ags, Mexico
| | - Francisco J. Avelar-González
- Laboratorio de Estudios Ambientales, Departamento de Fisiología y Farmacología, Centro de Ciencias Básicas, Universidad Autónoma de Aguascalientes, Aguascalientes, Ags, Mexico
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Whole-Genome Analysis of blaNDM-Bearing Proteus mirabilis Isolates and mcr-1-Positive Escherichia coli Isolates Carrying blaNDM from the Same Fresh Vegetables in China. Foods 2023; 12:foods12030492. [PMID: 36766021 PMCID: PMC9913981 DOI: 10.3390/foods12030492] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Revised: 01/12/2023] [Accepted: 01/16/2023] [Indexed: 01/24/2023] Open
Abstract
The global spread of colistin or carbapenem-resistant Enterobacteriaceae (CRE) has been a pressing threat to public health. Members of Enterobacteriaceae, especially Proteus mirabilis and Escherichia coli, have been prevalent foodborne pathogens and such pathogens from fresh vegetables have triggered foodborne illness in China. However, reports about CRE, especially P. mirabilis from fresh vegetables, are still lacking. In this study, we identified five blaNDM-positive P. mirabilis and five blaNDM-positive generic E. coli concurrently from five fresh vegetables in two markets from China, and four of the five E. coli also carried mcr-1. The 10 isolates were characterized with methods including antimicrobial susceptibility testing, conjugation, whole-genome sequencing and phylogenetic analysis. All 10 isolates were multidrug-resistant (MDR). blaNDM-5 in five E. coli isolates and one P. mirabilis carrying blaNDM-5 was located on similarly transferable IncX3 plasmids, while transferably untypable plasmids were the carriers of blaNDM-1 in four P. mirabilis isolates from different types of vegetables/markets. mcr-1 in the four blaNDM-5-positive E. coli was located on similarly non-conjugative IncHI2 MDR plasmids lacking transfer region. Notably, ISCR1 complex class 1 integron capable of capturing blaNDM-1 was found on all untypable plasmids from P. mirabilis, and five copies of ISCR1 complex class 1 integron containing blaNDM-1 even occurred in one P. mirabilis, which showed high-level carbapenem resistance. Plasmid and phylogenetic analysis revealed that the blaNDM-positive P. mirabilis and E. coli from fresh vegetables might be derived from animals and transmitted to humans via the food chain. The concurrence of blaNDM-positive P. mirabilis and E. coli carrying both mcr-1 and blaNDM in different types of fresh vegetables eaten raw is alarming and threatens food safety. Sustained surveillance of these foodborne pathogens among fresh vegetables is urgent to ensure the health of food consumers. We report for the first time the concurrence of blaNDM-positive P. mirabilis and mcr-1-bearing E. coli carrying blaNDM from the same fresh vegetables.
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Su Y, Xin L, Zhang F, Peng C, Li Z, Liu C, Wang F. Drug resistance analysis of three types of avian-origin carbapenem-resistant Enterobacteriaceae in Shandong Province, China. Poult Sci 2023; 102:102483. [PMID: 36682131 PMCID: PMC9876955 DOI: 10.1016/j.psj.2023.102483] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2022] [Revised: 12/29/2022] [Accepted: 01/03/2023] [Indexed: 01/09/2023] Open
Abstract
Animal-derived Enterobacteriaceae bacteria such as Escherichia coli (E. coli), Proteus mirabilis (P. mirabilis), and Klebsiella pneumoniae (K. pneumoniae) are important food-borne zoonotic bacilli that exist widely in the broiler-breeding industry. Although carbapenem antibiotics are considered to be the last line of defense against multidrug-resistant bacteria, carbapenem-resistant Enterobacteriaceae (CRE) break through them. In our study, we therefore, examined the prevalence of CRE and characteristics of antimicrobial resistance in 6 conventional broiler-fattening farms in Shandong Province, China. Our study revealed isolation rates of 3.57% (6/168) for carbapenem-resistant E. coli, 10% (5/50) for carbapenem-resistant P. mirabilis, and 3.03% (1/33) for carbapenem-resistant K. pneumoniae. All 12 CRE bacterial strains showed varying degrees of resistance to 27 antibiotics in 8 classes and were multidrug-resistant. The rate of the strains containing blaNDM genes, at 91.67% (11/12), was especially high. Among other results, the carrying rate of integrons in CRE bacteria was 91.67% (11/12), and 2 strains carried both class I and class II integrons, which accelerated the lateral transmission of resistant bacteria. Our first-ever finding of the 3 CRE bacteria E. coli, P. mirabilis, and K. pneumoniae on the same broiler farm suggests that poultry-derived CRE strains may pose a risk to humans. Moreover, our findings from surveillance can inform current understandings of the prevalence and characteristics of multidrug-resistant CRE in Shandong Province and, in turn, help to curb threats to food safety and public health and better prevent and control infectious zoonotic diseases.
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Affiliation(s)
- Yaxin Su
- Department of Veterinary Public Health, College of Veterinary Medicine & Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, Shandong Agricultural University, Taian City, 271018, Shandong, PR China
| | - Li Xin
- Department of Internal Medicine-Cardiovascular, The Affiliated Tai'an City Central Hospital of Qingdao University, Taian City, 271000, Shandong, PR China
| | - Feng Zhang
- Department of Ultrasonic Diagnosis and Treatment Center, The Affiliated Tai'an City Central Hospital of Qingdao University, Taian City, 271000, Shandong, PR China
| | - Chong Peng
- Department of Veterinary Public Health, College of Veterinary Medicine & Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, Shandong Agricultural University, Taian City, 271018, Shandong, PR China
| | - Zixuan Li
- Department of Veterinary Public Health, College of Veterinary Medicine & Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, Shandong Agricultural University, Taian City, 271018, Shandong, PR China
| | - Cong Liu
- Department of Veterinary Public Health, College of Veterinary Medicine & Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, Shandong Agricultural University, Taian City, 271018, Shandong, PR China
| | - Fangkun Wang
- Department of Veterinary Public Health, College of Veterinary Medicine & Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, Shandong Agricultural University, Taian City, 271018, Shandong, PR China.
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Chen W, Liu Z, Lin H, Yang J, Liu T, Zheng J, Long X, Sun Z, Li J, Chen X. Occurrence of blaNDM-1-Positive Providencia spp. in a Pig Farm of China. Antibiotics (Basel) 2022; 11:antibiotics11060713. [PMID: 35740120 PMCID: PMC9219741 DOI: 10.3390/antibiotics11060713] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2022] [Revised: 05/23/2022] [Accepted: 05/23/2022] [Indexed: 12/04/2022] Open
Abstract
Antibiotics have been extensively used to ensure the productivity of animals on intensive livestock farms. Accordingly, antimicrobial-resistant organisms, which can be transmitted to humans via the food chain, pose a threat to public health. The Enterobacterium antimicrobial resistance gene, blaNDM-1, is a transmissible gene that has attracted widespread attention. Here, we aimed to investigate the prevalence of Enterobacteriaceae carrying blaNDM-1 on an intensive pig farm. A total of 190 samples were collected from a pig farm in Hunan Province, China. Resistant isolates were selected using MacConkey agar with meropenem and PCR to screen for blaNDM-1-positive isolates. Positive strains were tested for conjugation, antimicrobial susceptibility, and whole-genome sequencing. Four blaNDM-1-positive Providencia strains were obtained, and multidrug resistance was observed in these strains. The structure carrying blaNDM-1 did not conjugate to E. coli J53 after three repeated conjugation assays. This suggests that, in intensive farming, attention should be focused on animal health and welfare to reduce the frequency of antibiotic usage. Carbapenem-resistant Enterobacteriaceae in the breeding industry should be included in systematic monitoring programs, including animal, human, and environmental monitoring programs.
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Affiliation(s)
- Wenxin Chen
- College of Veterinary Medicine, Hunan Agricultural University, Changsha 410128, China; (W.C.); (Z.L.); (H.L.); (J.Y.); (T.L.); (Z.S.)
- Hunan Engineering Technology Research Center of Veterinary Drugs, Hunan Agricultural University, Changsha 410128, China
| | - Zhihong Liu
- College of Veterinary Medicine, Hunan Agricultural University, Changsha 410128, China; (W.C.); (Z.L.); (H.L.); (J.Y.); (T.L.); (Z.S.)
- Hunan Engineering Technology Research Center of Veterinary Drugs, Hunan Agricultural University, Changsha 410128, China
| | - Hongguang Lin
- College of Veterinary Medicine, Hunan Agricultural University, Changsha 410128, China; (W.C.); (Z.L.); (H.L.); (J.Y.); (T.L.); (Z.S.)
- Hunan Engineering Technology Research Center of Veterinary Drugs, Hunan Agricultural University, Changsha 410128, China
| | - Jie Yang
- College of Veterinary Medicine, Hunan Agricultural University, Changsha 410128, China; (W.C.); (Z.L.); (H.L.); (J.Y.); (T.L.); (Z.S.)
- Hunan Engineering Technology Research Center of Veterinary Drugs, Hunan Agricultural University, Changsha 410128, China
| | - Ting Liu
- College of Veterinary Medicine, Hunan Agricultural University, Changsha 410128, China; (W.C.); (Z.L.); (H.L.); (J.Y.); (T.L.); (Z.S.)
- Hunan Engineering Technology Research Center of Veterinary Drugs, Hunan Agricultural University, Changsha 410128, China
| | - Jiaomei Zheng
- Changsha Animal and Plant Disease Control Center, Changsha 410003, China;
| | - Xueming Long
- Hunan Provincial Institution of Veterinary Drug and Feed Control, Changsha 410006, China;
| | - Zhiliang Sun
- College of Veterinary Medicine, Hunan Agricultural University, Changsha 410128, China; (W.C.); (Z.L.); (H.L.); (J.Y.); (T.L.); (Z.S.)
- Hunan Engineering Technology Research Center of Veterinary Drugs, Hunan Agricultural University, Changsha 410128, China
| | - Jiyun Li
- College of Veterinary Medicine, Hunan Agricultural University, Changsha 410128, China; (W.C.); (Z.L.); (H.L.); (J.Y.); (T.L.); (Z.S.)
- Hunan Engineering Technology Research Center of Veterinary Drugs, Hunan Agricultural University, Changsha 410128, China
- Correspondence: (J.L.); (X.C.)
| | - Xiaojun Chen
- College of Veterinary Medicine, Hunan Agricultural University, Changsha 410128, China; (W.C.); (Z.L.); (H.L.); (J.Y.); (T.L.); (Z.S.)
- Hunan Engineering Technology Research Center of Veterinary Drugs, Hunan Agricultural University, Changsha 410128, China
- Correspondence: (J.L.); (X.C.)
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