1
|
Shcherbak N, Prochaska H, Lystvan K, Prokhorova Y, Giritch A, Kuchuk M. Accumulation of colicin M protein and its biological activity in transgenic lettuce and mizuna plants. FRONTIERS IN PLANT SCIENCE 2023; 14:1271757. [PMID: 37936936 PMCID: PMC10627015 DOI: 10.3389/fpls.2023.1271757] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/02/2023] [Accepted: 10/02/2023] [Indexed: 11/09/2023]
Abstract
Food-borne illnesses caused by pathogenic Escherichia coli strains, especially enterohaemorrhagic E. coli (EHEC), are a serious public health problem, as debilitating disease and even death from such food poisonings have been repeatedly reported. Colicin M (ColM), a non-antibiotic antimicrobial protein produced by some strains of E. coli, has shown promising activity in controlling multiple enteropathogenic strains of E. coli and related pathogens. As contaminated green leafy vegetables are a frequent source of pathogenic E. coli infections, we genetically modified (GM) two edible crops, lettuce (Lactuca sativa L.) and mizuna (Brassica rapa subsp. nipposinica var. laciniata), to stably express the ColM gene and assessed the antibacterial activity of tissue extracts from these plants against selected E. coli strains in vitro. Transgenic plants of these species were developed using Agrobacterium-mediated transformation with a vector containing the ColM-coding gene (cma) under the control of the 35S promoter. Western blot analysis of recombinant ColM protein was performed in selected transgenic plants to confirm cma gene expression and quantify ColM accumulation. Extracts of transgenic plants expressing ColM showed significant activity against two major strains of EHEC (O157:H7 and O104:H4) as well as E. coli strains resistant to beta-lactam- and carbapenem-class antibiotics. Importantly, the antibacterial activity persisted in several subsequent generations of transgenic lettuce and mizuna plants that stably expressed the ColM gene. In addition, our results also show that the antibacterial activity of dried (up to 40°C) biomass of transgenic plants remained stable without a decrease for at least three months.
Collapse
Affiliation(s)
- Nataliia Shcherbak
- Department of Genetic Engineering, Institute of Cell Biology and Genetic Engineering of National Academy of Sciences (NAS) of Ukraine, Kyiv, Ukraine
| | | | - Kateryna Lystvan
- Department of Genetic Engineering, Institute of Cell Biology and Genetic Engineering of National Academy of Sciences (NAS) of Ukraine, Kyiv, Ukraine
| | - Yelizaveta Prokhorova
- Department of Genetic Engineering, Institute of Cell Biology and Genetic Engineering of National Academy of Sciences (NAS) of Ukraine, Kyiv, Ukraine
| | | | - Mykola Kuchuk
- Department of Genetic Engineering, Institute of Cell Biology and Genetic Engineering of National Academy of Sciences (NAS) of Ukraine, Kyiv, Ukraine
| |
Collapse
|
2
|
Ruekit S, Srijan A, Serichantalergs O, Margulieux KR, Mc Gann P, Mills EG, Stribling WC, Pimsawat T, Kormanee R, Nakornchai S, Sakdinava C, Sukhchat P, Wojnarski M, Demons ST, Crawford JM, Lertsethtakarn P, Swierczewski BE. Molecular characterization of multidrug-resistant ESKAPEE pathogens from clinical samples in Chonburi, Thailand (2017-2018). BMC Infect Dis 2022; 22:695. [PMID: 35978294 PMCID: PMC9386987 DOI: 10.1186/s12879-022-07678-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2022] [Accepted: 08/08/2022] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND ESKAPEE pathogens Enterococcus faecium, Staphylococcus aureus, Klebsiella pneumoniae, Acinetobacter baumannii, Pseudomonas aeruginosa, Enterobacter spp. and Escherichia coli are multi-drug resistant (MDR) bacteria that present increasing treatment challenges for healthcare institutions and public health worldwide. METHODS 431 MDR ESKAPEE pathogens were collected from Queen Sirikit Naval Hospital, Chonburi, Thailand between 2017 and 2018. Species identification and antimicrobial resistance (AMR) phenotype were determined following CLSI and EUCAST guidelines on the BD Phoenix System. Molecular identification of antibiotic resistant genes was performed by polymerase chain reaction (PCR), real-time PCR assays, and whole genome sequencing (WGS). RESULTS Of the 431 MDR isolates collected, 1.2% were E. faecium, 5.8% were S. aureus, 23.7% were K. pneumoniae, 22.5% were A. baumannii, 4.6% were P. aeruginosa, 0.9% were Enterobacter spp., and 41.3% were E. coli. Of the 401 Gram-negative MDR isolates, 51% were carbapenem resistant, 45% were ESBL producers only, 2% were colistin resistance and ESBLs producers (2%), and 2% were non-ESBLs producers. The most prevalent carbapenemase genes were blaOXA-23 (23%), which was only identified in A. baumannii, followed by blaNDM (17%), and blaOXA-48-like (13%). Beta-lactamase genes detected included blaTEM, blaSHV, blaOXA, blaCTX-M, blaDHA, blaCMY, blaPER and blaVEB. Seven E. coli and K. pneumoniae isolates showed resistance to colistin and carried mcr-1 or mcr-3, with 2 E. coli strains carrying both genes. Among 30 Gram-positive MDR ESKAPEE, all VRE isolates carried the vanA gene (100%) and 84% S. aureus isolates carried the mecA gene. CONCLUSIONS This report highlights the prevalence of AMR among clinical ESKAPEE pathogens in eastern Thailand. E. coli was the most common MDR pathogen collected, followed by K. pneumoniae, and A. baumannii. Carbapenem-resistant Enterobacteriaceae (CRE) and extended spectrum beta-lactamases (ESBLs) producers were the most common resistance profiles. The co-occurrence of mcr-1 and mcr-3 in 2 E. coli strains, which did not affect the level of colistin resistance, is also reported. The participation of global stakeholders and surveillance of MDR remain essential for the control and management of MDR ESKAPEE pathogens.
Collapse
Affiliation(s)
- Sirigade Ruekit
- Bacterial and Parasitic Diseases Department, Armed Forces Research Institute of Medical Sciences (AFRIMS), Bangkok, 10400, Thailand
| | - Apichai Srijan
- Bacterial and Parasitic Diseases Department, Armed Forces Research Institute of Medical Sciences (AFRIMS), Bangkok, 10400, Thailand
| | - Oralak Serichantalergs
- Bacterial and Parasitic Diseases Department, Armed Forces Research Institute of Medical Sciences (AFRIMS), Bangkok, 10400, Thailand
| | - Katie R Margulieux
- Wound Infections Department, Bacterial Diseases Branch, Walter Reed Army Institute of Research, Silver Spring, MD, USA
| | - Patrick Mc Gann
- Multidrug-Resistant Organism Repository and Surveillance Network (MRSN), Walter Reed Army Institute of Research, Silver Spring, MD, USA
| | - Emma G Mills
- Multidrug-Resistant Organism Repository and Surveillance Network (MRSN), Walter Reed Army Institute of Research, Silver Spring, MD, USA
| | - William C Stribling
- Multidrug-Resistant Organism Repository and Surveillance Network (MRSN), Walter Reed Army Institute of Research, Silver Spring, MD, USA
| | | | | | | | | | | | - Mariusz Wojnarski
- Bacterial and Parasitic Diseases Department, Armed Forces Research Institute of Medical Sciences (AFRIMS), Bangkok, 10400, Thailand
| | - Samandra T Demons
- Bacterial and Parasitic Diseases Department, Armed Forces Research Institute of Medical Sciences (AFRIMS), Bangkok, 10400, Thailand
| | - John M Crawford
- US Army Medical Research Institute of Chemical Defense, Gunpowder, MD, USA
| | - Paphavee Lertsethtakarn
- Bacterial and Parasitic Diseases Department, Armed Forces Research Institute of Medical Sciences (AFRIMS), Bangkok, 10400, Thailand.
| | - Brett E Swierczewski
- Bacterial Diseases Branch, Walter Reed Army Institute of Research, Silver Spring, MD, USA
| |
Collapse
|
3
|
Dadashi M, Sameni F, Bostanshirin N, Yaslianifard S, Khosravi-Dehaghi N, Nasiri MJ, Goudarzi M, Hashemi A, Hajikhani B. Global Prevalence and Molecular Epidemiology of mcr-Mediated Colistin Resistance in Escherichia coli Clinical Isolates: A Systematic Review. J Glob Antimicrob Resist 2021; 29:444-461. [PMID: 34788692 DOI: 10.1016/j.jgar.2021.10.022] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2021] [Revised: 10/10/2021] [Accepted: 10/25/2021] [Indexed: 01/18/2023] Open
Abstract
BACKGROUND AND AIM The continuing rise in infections caused by multi-drug resistant (MDR) bacteria is one of the most serious public health issues in today's societies. Colistin is a last-resort antimicrobial medication used to treat infections caused by MDR gram-negative bacteria; therefore resistance to this antibiotic is extremely hazardous. The current study aimed to evaluate the global prevalence and distribution of colistin resistance genes among human clinical isolates of Escherichia coli (E. coli) as a systematic review. METHODS PubMed, Embase, and Web of Science databases were systematically searched. For further evaluation, all original English-language articles that demonstrated colistin resistance in E. coli clinical isolates published between 2000 and 2020 were examined. RESULTS Out of 4857 initial articles, after various stages of review and evaluation, 190 related articles were selected. More than 79 % of the publications selected in this research were published from 2014 to 2020. In Asia, Europe, America, Africa, and Oceania, the prevalence of mobilized colistin resistance (mcr) producing colistin-resistant E. coli was 66.72%, 25.48%, 5.19%, 2.27%, and 0.32 %, respectively. CONCLUSION The recent widespread spreading of E. coli strains harboring mcr conferring colistin resistance, especially in Asia and Europe, is concerning and needs more attention.
Collapse
Affiliation(s)
- Masoud Dadashi
- Department of Microbiology, School of Medicine, Alborz University of Medical Sciences, Karaj, Iran; Non-Communicable Diseases Research Center, Alborz University of Medical Sciences, Karaj, Iran
| | - Fatemeh Sameni
- Department of Microbiology, School of Medicine, Shahed University, Tehran, Iran
| | - Nazila Bostanshirin
- Department of Microbiology, School of Medicine, Alborz University of Medical Sciences, Karaj, Iran
| | - Somayeh Yaslianifard
- Department of Microbiology, School of Medicine, Alborz University of Medical Sciences, Karaj, Iran
| | - Nafiseh Khosravi-Dehaghi
- Department of Pharmacognosy, School of Pharmacy, Alborz University of Medical Sciences, Karaj, Iran; Evidence-Based Phytotherapy and Complementary Medicine Research Center, Alborz University of Medical Sciences, Karaj, Iran
| | - Mohammad Javad Nasiri
- Department of Microbiology, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mehdi Goudarzi
- Department of Microbiology, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Ali Hashemi
- Department of Microbiology, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Bahareh Hajikhani
- Department of Microbiology, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
| |
Collapse
|
4
|
Abstract
Horizontal gene transfer (HGT) is a driving force of microbial evolution. The gut of animals acts as a potent reservoir for the lateral transfer of virulence, fitness, and antimicrobial resistance genes through plasmids. Reduced-complexity models for the examination of host-microbe interactions involved in plasmid transfer are greatly desired. Thus, this study identifies the use of Drosophila melanogaster as a model organism for the conjugation of plasmids of various incompatibility groups in the gut. Enterobacteriaceae conjugation pairs were identified in vitro and used for oral inoculation of the Drosophila gut. Flies were enumerated for the donor, recipient, and transconjugant populations. Each donor-recipient pair was observed to persist in fly guts for the duration of the experiment. Gut concentrations of the donors and recipients were significantly different between male and female flies, with females generally demonstrating increased concentrations. Furthermore, host genetics significantly altered the concentrations of donors and recipients. However, transconjugant concentrations were not affected by host sex or genetics and were detected only in the IncPε and IncI1 plasmid groups. This study demonstrates Drosophila melanogaster as a model for gut-mediated plasmid transfer. IMPORTANCE Microbial evolution in the gut of animals due to horizontal gene transfer (HGT) is of significant interest for microbial evolution as well as within the context of human and animal health. Microbial populations evolve within the host, and factors from the bacteria and host interact to regulate this evolution. However, little is currently known about how host and bacterial factors regulate plasmid-mediated HGT in the gut. This study demonstrates the use of Drosophila and the roles of sexual dimorphism as well as plasmid incompatibility groups in HGT in the gut.
Collapse
|
5
|
Sirichokchatchawan W, Apiwatsiri P, Pupa P, Saenkankam I, Khine NO, Lekagul A, Lugsomya K, Hampson DJ, Prapasarakul N. Reducing the Risk of Transmission of Critical Antimicrobial Resistance Determinants From Contaminated Pork Products to Humans in South-East Asia. Front Microbiol 2021; 12:689015. [PMID: 34385984 PMCID: PMC8353453 DOI: 10.3389/fmicb.2021.689015] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Accepted: 06/21/2021] [Indexed: 01/10/2023] Open
Abstract
Antimicrobial resistance (AMR) is a critical challenge worldwide as it impacts public health, especially via contamination in the food chain and in healthcare-associated infections. In relation to farming, the systems used, waste management on farms, and the production line process are all determinants reflecting the risk of AMR emergence and rate of contamination of foodstuffs. This review focuses on South East Asia (SEA), which contains diverse regions covering 11 countries, each having different levels of development, customs, laws, and regulations. Routinely, here as elsewhere antimicrobials are still used for three indications: therapy, prevention, and growth promotion, and these are the fundamental drivers of AMR development and persistence. The accuracy of detection of antibiotic resistant bacteria (ARB) and antibiotic resistance genes (ARG) depends on the laboratory standards applicable in the various institutes and countries, and this affects the consistency of regional data. Enterobacteriaceae such as Escherichia coli and Klebsiella pneumoniae are the standard proxy species used for indicating AMR-associated nosocomial infections and healthcare-associated infections. Pig feces and wastewater have been suspected as one of the hotspots for spread and circulation of ARB and ARG. As part of AMR surveillance in a One Health approach, clonal typing is used to identify bacterial clonal transmission from the production process to consumers and patients - although to date there have been few published definitive studies about this in SEA. Various alternatives to antibiotics are available to reduce antibiotic use on farms. Certain of these alternatives together with improved disease prevention methods are essential tools to reduce antimicrobial usage in swine farms and to support global policy. This review highlights evidence for potential transfer of resistant bacteria from food animals to humans, and awareness and understanding of AMR through a description of the occurrence of AMR in pig farm food chains under SEA management systems. The latter includes a description of standard pig farming practices, detection of AMR and clonal analysis of bacteria, and AMR in the food chain and associated environments. Finally, the possibility of using alternatives to antibiotics and improving policies for future strategies in combating AMR in a SEA context are outlined.
Collapse
Affiliation(s)
- Wandee Sirichokchatchawan
- College of Public Health Sciences, Chulalongkorn University, Bangkok, Thailand
- Diagnosis and Monitoring of Animal Pathogen Research Unit, Chulalongkorn University, Bangkok, Thailand
| | - Prasert Apiwatsiri
- Department of Veterinary Microbiology, Faculty of Veterinary Science, Chulalongkorn University, Bangkok, Thailand
| | - Pawiya Pupa
- Department of Veterinary Microbiology, Faculty of Veterinary Science, Chulalongkorn University, Bangkok, Thailand
| | - Imporn Saenkankam
- Department of Veterinary Microbiology, Faculty of Veterinary Science, Chulalongkorn University, Bangkok, Thailand
| | - Nwai Oo Khine
- Department of Veterinary Microbiology, Faculty of Veterinary Science, Chulalongkorn University, Bangkok, Thailand
| | - Angkana Lekagul
- International Health Policy Program, Ministry of Public Health, Nonthaburi, Thailand
| | - Kittitat Lugsomya
- Jockey Club College of Veterinary Medicine and Life Sciences, City University of Hong Kong, Kowloon Tong, Hong Kong
| | - David J. Hampson
- School of Veterinary Medicine, Murdoch University, Perth, WA, Australia
| | - Nuvee Prapasarakul
- Diagnosis and Monitoring of Animal Pathogen Research Unit, Chulalongkorn University, Bangkok, Thailand
- Department of Veterinary Microbiology, Faculty of Veterinary Science, Chulalongkorn University, Bangkok, Thailand
| |
Collapse
|
6
|
Girlich D, Bogaerts P, Bouchahrouf W, Bernabeu S, Langlois I, Begasse C, Arangia N, Dortet L, Huang TD, Glupczynski Y, Naas T. Evaluation of the Novodiag CarbaR+, a Novel Integrated Sample to Result Platform for the Multiplex Qualitative Detection of Carbapenem and Colistin Resistance Markers. Microb Drug Resist 2021; 27:170-178. [DOI: 10.1089/mdr.2020.0132] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Affiliation(s)
- Delphine Girlich
- Team “Resist” UMR1184 “Immunology of Viral, Auto-Immune, Hematological and Bacterial diseases (IMVA-HB),” INSERM, Université Paris-Saclay, CEA, LabEx Lermit, Faculty of Medicine, Le Kremlin-Bicêtre, France
- Evolution and Ecology of Resistance to Antibiotics Unit, Institut Pasteur–APHP–Université Paris-Sud, Paris, France
| | - Pierre Bogaerts
- Laboratory of Clinical Microbiology, National Reference Center for Monitoring Antimicrobial Resistance in Gram-Negative Bacteria, CHU UCL Namur, Yvoir, Belgium
| | - Warda Bouchahrouf
- Laboratory of Clinical Microbiology, National Reference Center for Monitoring Antimicrobial Resistance in Gram-Negative Bacteria, CHU UCL Namur, Yvoir, Belgium
| | - Sandrine Bernabeu
- Team “Resist” UMR1184 “Immunology of Viral, Auto-Immune, Hematological and Bacterial diseases (IMVA-HB),” INSERM, Université Paris-Saclay, CEA, LabEx Lermit, Faculty of Medicine, Le Kremlin-Bicêtre, France
- Evolution and Ecology of Resistance to Antibiotics Unit, Institut Pasteur–APHP–Université Paris-Sud, Paris, France
- Bacteriology-Hygiene Unit, Assistance Publique–Hôpitaux de Paris, Bicêtre Hospital, Le Kremlin-Bicêtre, France
- Associated French National Reference Center for Antibiotic Resistance: Carbapenemase-Producing Enterobacteriaceae, Le Kremlin-Bicêtre, France
| | - Isabelle Langlois
- Bacteriology-Hygiene Unit, Assistance Publique–Hôpitaux de Paris, Bicêtre Hospital, Le Kremlin-Bicêtre, France
| | - Christine Begasse
- Bacteriology-Hygiene Unit, Assistance Publique–Hôpitaux de Paris, Bicêtre Hospital, Le Kremlin-Bicêtre, France
| | - Nicolas Arangia
- Bacteriology-Hygiene Unit, Assistance Publique–Hôpitaux de Paris, Bicêtre Hospital, Le Kremlin-Bicêtre, France
| | - Laurent Dortet
- Team “Resist” UMR1184 “Immunology of Viral, Auto-Immune, Hematological and Bacterial diseases (IMVA-HB),” INSERM, Université Paris-Saclay, CEA, LabEx Lermit, Faculty of Medicine, Le Kremlin-Bicêtre, France
- Evolution and Ecology of Resistance to Antibiotics Unit, Institut Pasteur–APHP–Université Paris-Sud, Paris, France
- Bacteriology-Hygiene Unit, Assistance Publique–Hôpitaux de Paris, Bicêtre Hospital, Le Kremlin-Bicêtre, France
- Associated French National Reference Center for Antibiotic Resistance: Carbapenemase-Producing Enterobacteriaceae, Le Kremlin-Bicêtre, France
| | - Te-Din Huang
- Laboratory of Clinical Microbiology, National Reference Center for Monitoring Antimicrobial Resistance in Gram-Negative Bacteria, CHU UCL Namur, Yvoir, Belgium
| | - Youri Glupczynski
- Laboratory of Clinical Microbiology, National Reference Center for Monitoring Antimicrobial Resistance in Gram-Negative Bacteria, CHU UCL Namur, Yvoir, Belgium
| | - Thierry Naas
- Team “Resist” UMR1184 “Immunology of Viral, Auto-Immune, Hematological and Bacterial diseases (IMVA-HB),” INSERM, Université Paris-Saclay, CEA, LabEx Lermit, Faculty of Medicine, Le Kremlin-Bicêtre, France
- Evolution and Ecology of Resistance to Antibiotics Unit, Institut Pasteur–APHP–Université Paris-Sud, Paris, France
- Bacteriology-Hygiene Unit, Assistance Publique–Hôpitaux de Paris, Bicêtre Hospital, Le Kremlin-Bicêtre, France
- Associated French National Reference Center for Antibiotic Resistance: Carbapenemase-Producing Enterobacteriaceae, Le Kremlin-Bicêtre, France
| |
Collapse
|
7
|
Paveenkittiporn W, Kamjumphol W, Ungcharoen R, Kerdsin A. Whole-Genome Sequencing of Clinically Isolated Carbapenem-Resistant Enterobacterales Harboring mcr Genes in Thailand, 2016-2019. Front Microbiol 2021; 11:586368. [PMID: 33505364 PMCID: PMC7829498 DOI: 10.3389/fmicb.2020.586368] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2020] [Accepted: 11/16/2020] [Indexed: 01/26/2023] Open
Abstract
Mobile colistin-resistant genes (mcr) have become an increasing public health concern. Since the first report of mcr-1 in Thailand in 2016, perspective surveillance was conducted to explore the genomic characteristics of clinical carbapenem-resistant Enterobacterales (CRE) isolates harboring mcr in 2016-2019. Thirteen (0.28%) out of 4,516 CRE isolates were found to carry mcr genes, including 69.2% (9/13) of E. coli and 30.8% (4/13) of K. pneumoniae isolates. Individual mcr-1.1 was detected in eight E. coli (61.5%) isolates, whereas the co-occurrence of mcr-1.1 and mcr-3.5 was seen in only one E. coli isolate (7.7%). No CRE were detected carrying mcr-2, mcr-4, or mcr-5 through to mcr-9. Analysis of plasmid replicon types carrying mcr revealed that IncX4 was the most common (61.5%; 8/13), followed by IncI2 (15.4%; 2/13). The minimum inhibitory concentration values for colistin were in the range of 4-16 μg/ml for all CRE isolates harboring mcr, suggesting they have 100% colistin resistance. Clermont phylotyping of nine mcr-harboring carbapenem-resistant E. coli isolates demonstrated phylogroup C was predominant in ST410. In contrast, ST336 belonged to CC17, and the KL type 25 was predominant in carbapenem-resistant K. pneumoniae isolates. This report provides a comprehensive insight into the prevalence of mcr-carrying CRE from patients in Thailand. The information highlights the importance of strengthening official active surveillance efforts to detect, control, and prevent mcr-harboring CRE and the need for rational drug use in all sectors.
Collapse
Affiliation(s)
- Wantana Paveenkittiporn
- National Institute of Health, Department of Medical Sciences, Ministry of Public Health, Nonthaburi, Thailand
| | - Watcharaporn Kamjumphol
- National Institute of Health, Department of Medical Sciences, Ministry of Public Health, Nonthaburi, Thailand
| | | | - Anusak Kerdsin
- Faculty of Public Health, Kasetsart University, Nakhon, Thailand
| |
Collapse
|
8
|
Khanawapee A, Kerdsin A, Chopjitt P, Boueroy P, Hatrongjit R, Akeda Y, Tomono K, Nuanualsuwan S, Hamada S. Distribution and Molecular Characterization of Escherichia coli Harboring mcr Genes Isolated from Slaughtered Pigs in Thailand. Microb Drug Resist 2020; 27:971-979. [PMID: 33325796 DOI: 10.1089/mdr.2020.0242] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
The resistance of Enterobacteriaceae to colistin mediated by plasmid-borne mobile mcr genes is an emerging public health concern. This study aimed to explore the distribution and characteristics of Escherichia coli isolates harboring mcr genes from slaughtered pigs in Thailand from 2014 to 2015. A total of 779 E. coli isolates were assessed, of which 61 (7.8%) were found to carry mcr genes, including mcr-1, mcr-3, mcr-6, mcr-7, mcr-8, and mcr-9, together with co-occurrences of mcr-1+mcr-3, mcr-1+mcr-9, and mcr-3+mcr-6+mcr-7. In these mcr-harboring E. coli isolates, mcr-1 (40.9%) and mcr-9 (32.8%) were predominant. Colistin resistance was mainly mediated by the mcr-1 gene, whereas intermediate resistance was noted in isolates that harbored mcr-9, mcr-6, mcr-7, and mcr-8 genes. Most E. coli isolates harboring mcr genes were susceptible to third-generation cephalosporins and all of these isolates were susceptible to carbapenems. Clermont phylotyping demonstrated that mcr-harboring isolates mainly belonged to phylogroup A (44.3%), followed by phylogroups B1 (34.4%), D (14.8%), and B2 (6.6%). Multilocus sequence typing revealed that 25 sequence types (STs) were assigned to 45 mcr-harboring E. coli isolates, whereas the remaining 16 isolates were novel STs. The mcr-1 and mcr-9 genes were mostly predominant in ST101 and ST8900, respectively. This study provides a comprehensive insight into the prevalence and diversity of mcr-harboring E. coli isolates obtained from slaughtered pigs across Thailand. Strengthening of surveillance systems by the government for controlling and preventing mcr dissemination from animals to humans or vice versa is urgently needed. No clinical trial registration number.
Collapse
Affiliation(s)
- Aunyarat Khanawapee
- Faculty of Public Health, Kasetsart University, Chalermphrakiat Sakon Nakhon Province Campus, Sakon Nakhon, Thailand
| | - Anusak Kerdsin
- Faculty of Public Health, Kasetsart University, Chalermphrakiat Sakon Nakhon Province Campus, Sakon Nakhon, Thailand
| | - Peechanika Chopjitt
- Faculty of Public Health, Kasetsart University, Chalermphrakiat Sakon Nakhon Province Campus, Sakon Nakhon, Thailand
| | - Parichart Boueroy
- Faculty of Public Health, Kasetsart University, Chalermphrakiat Sakon Nakhon Province Campus, Sakon Nakhon, Thailand
| | - Rujirat Hatrongjit
- Faculty of Science and Engineering, Kasetsart University, Chalermphrakiat Sakon Nakhon Province Campus, Sakon Nakhon, Thailand
| | - Yukihiro Akeda
- Japan-Thailand Research Collaboration Center for Infectious Diseases, Research Institute for Microbial Diseases, Osaka University, Suita, Japan.,Department of Infection Control and Prevention, Graduate School of Medicine, Osaka University, Suita, Japan.,Division of Infection Control and Prevention, Osaka University Hospital, Osaka University, Suita, Japan
| | - Kazunori Tomono
- Department of Infection Control and Prevention, Graduate School of Medicine, Osaka University, Suita, Japan.,Division of Infection Control and Prevention, Osaka University Hospital, Osaka University, Suita, Japan
| | - Suphachai Nuanualsuwan
- Department of Veterinary Public Health, Faculty of Veterinary Science, Chulalongkorn University, Bangkok, Thailand.,Food Risk Hub, Research Unit of Chulalongkorn University, Bangkok, Thailand
| | - Shigeyuki Hamada
- Japan-Thailand Research Collaboration Center for Infectious Diseases, Research Institute for Microbial Diseases, Osaka University, Suita, Japan
| |
Collapse
|
9
|
Co-harboring of mcr-1 and β-lactamase genes in Pseudomonas aeruginosa by high-resolution melting curve analysis (HRMA): Molecular typing of superbug strains in bloodstream infections (BSI). INFECTION GENETICS AND EVOLUTION 2020; 85:104518. [PMID: 32891877 DOI: 10.1016/j.meegid.2020.104518] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/26/2020] [Revised: 08/05/2020] [Accepted: 08/25/2020] [Indexed: 11/21/2022]
Abstract
Background Colistin resistance in P. aeruginosa (CRPA) is due to the appearance of superbug strains. As this pathogen gains more transferrable resistance mechanisms and continues to adapt to acquire additional resistance mechanisms during antimicrobial therapy rapidly, we face the growing threat of CRPA in bloodstream infections (BSI). This study designed to evaluate the frequency of CRPA strains producing different β-lactamases by the High-Resolution Melting Curve Analysis (HRMA) method in BSI and to characterize the different types by multilocus sequence typing (MLST). MATERIAL AND METHODS Sixty-nine (69) P. aeruginosa isolates were collected from blood culture. MIC E-test methods examined the antimicrobial susceptibilities of the bacterial isolates. Detection of resistant strains performed by using HRMA assay. RESULTS The strains resistant to amikacin (n = 11; 15.94%) and colistin (n = 10; 14.49%) were the least abundant and the gentamicin (n = 56; 82.6%) and ciprofloxacin (n = 67; 97.10%) resistant strains were the most frequent. Also, 39 isolates (56.52%) considered as multidrug-resistant (MDR), 20 isolates (28.98%) as extensively drug resistant (XDR), and 11 isolates (15.94%) as Pandrug Resistance (PDR). Further, 32 isolates (46.37%) considered as AmpC producer, and 28 isolates (40.57%) were considered an MBL producer. According to HRMA results, the blaSPM gene was detected in 19 isolates (27.53%), blaNDM gene in 11 isolates (15.94%), blaFOX gene in 31 isolates (44.92%), mcr-1 gene in 10 isolates (14.49%), blaACC and blaVIM genes in 27 isolates (39.13%), and blaTEM gene was reported in 20 isolates (28.98%). Furthermore, P. aeruginosa PASGNDM699, ST3340, and ST235 identified in 1.44%, 11.59% and 17.39% isolates, respectively. CONCLUSION CRPA strains play an essential role in the spread of antibiotic resistance in BSI. Likewise, the HRMA method was sensitive and specific for the detection of superbugs. Moreover, MLST analysis of a diverse collection of P. aeruginosa from blood culture suggests that particular strains or clonal complexes are associated with antibiotic resistance profile.
Collapse
|
10
|
Sawatwong P, Sapchookul P, Whistler T, Gregory CJ, Sangwichian O, Makprasert S, Jorakate P, Srisaengchai P, Thamthitiwat S, Promkong C, Nanvatthanachod P, Vanaporn M, Rhodes J. High Burden of Extended-Spectrum β-Lactamase-Producing Escherichia coli and Klebsiella pneumoniae Bacteremia in Older Adults: A Seven-Year Study in Two Rural Thai Provinces. Am J Trop Med Hyg 2020; 100:943-951. [PMID: 30793684 PMCID: PMC6447101 DOI: 10.4269/ajtmh.18-0394] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
Abstract
Bloodstream infection surveillance conducted from 2008 to 2014 in all 20 hospitals in Sa Kaeo and Nakhon Phanom provinces, Thailand, allowed us to look at disease burden, antibiotic susceptibilities, and recurrent infections caused by extended-spectrum β-lactamase (ESBL)-producing Escherichia coli and Klebsiella pneumoniae. Of 97,832 blood specimens, 3,338 were positive for E. coli and 1,086 for K. pneumoniae. The proportion of E. coli isolates producing ESBL significantly increased from 19% to 22% in 2008-2010 to approximately 30% from 2011 to 2014 (P-value for trend = 0.02), whereas ESBL production among K. pneumoniae cases was 27.4% with no significant trend over time. Incidence of community-onset ESBL-producing E. coli increased from 5.4 per 100,000 population in 2008 to 12.8 in 2014, with the highest rates among persons aged ≥ 70 years at 79 cases per 100,000 persons in 2014. From 2008 to 2014, community-onset ESBL-producing K. pneumoniae incidence was 2.7 per 100,000, with a rate of 12.9 among those aged ≥ 70 years. Although most (93.6% of E. coli and 87.6% of K. pneumoniae) infections were community-onset, hospital-onset infections were twice as likely to be ESBL. Population-based surveillance, as described, is vital to accurately monitor emergence and trends in antimicrobial resistance, and in guiding the development of rational antimicrobial therapy recommendations.
Collapse
Affiliation(s)
- Pongpun Sawatwong
- Thailand Ministry of Public Health (MOPH)-U.S. Centers for Disease Control and Prevention Collaboration (TUC), Nonthaburi, Thailand.,Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand
| | - Patranuch Sapchookul
- Thailand Ministry of Public Health (MOPH)-U.S. Centers for Disease Control and Prevention Collaboration (TUC), Nonthaburi, Thailand
| | - Toni Whistler
- Division of Global Health Protection, Centers for Disease Control and Prevention, Atlanta, Georgia.,Thailand Ministry of Public Health (MOPH)-U.S. Centers for Disease Control and Prevention Collaboration (TUC), Nonthaburi, Thailand
| | - Christopher J Gregory
- Division of Global Health Protection, Centers for Disease Control and Prevention, Atlanta, Georgia.,Thailand Ministry of Public Health (MOPH)-U.S. Centers for Disease Control and Prevention Collaboration (TUC), Nonthaburi, Thailand
| | - Ornuma Sangwichian
- Thailand Ministry of Public Health (MOPH)-U.S. Centers for Disease Control and Prevention Collaboration (TUC), Nonthaburi, Thailand
| | - Sirirat Makprasert
- Thailand Ministry of Public Health (MOPH)-U.S. Centers for Disease Control and Prevention Collaboration (TUC), Nonthaburi, Thailand
| | - Possawat Jorakate
- Thailand Ministry of Public Health (MOPH)-U.S. Centers for Disease Control and Prevention Collaboration (TUC), Nonthaburi, Thailand
| | - Prasong Srisaengchai
- Thailand Ministry of Public Health (MOPH)-U.S. Centers for Disease Control and Prevention Collaboration (TUC), Nonthaburi, Thailand
| | - Somsak Thamthitiwat
- Thailand Ministry of Public Health (MOPH)-U.S. Centers for Disease Control and Prevention Collaboration (TUC), Nonthaburi, Thailand
| | | | | | - Muthita Vanaporn
- Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand
| | - Julia Rhodes
- Thailand Ministry of Public Health (MOPH)-U.S. Centers for Disease Control and Prevention Collaboration (TUC), Nonthaburi, Thailand
| |
Collapse
|
11
|
Le-Vo HN, Tran PTB, Le L, Matsumoto Y, Motooka D, Nakamura S, Jones JW, Iida T, Cao V. Complex Class 1 Integron in a Clinical Escherichia coli Strain From Vietnam Carrying Both mcr-1 and bla NDM-1. Front Microbiol 2019; 10:2472. [PMID: 31736911 PMCID: PMC6834847 DOI: 10.3389/fmicb.2019.02472] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2019] [Accepted: 10/15/2019] [Indexed: 11/13/2022] Open
Abstract
The co-production of MCR and carbapenemase in Enterobacteriaceae has been previously reported. Here, we describe a clinical strain of Escherichia coli from Vietnam carrying both mcr-1 and bla NDM-1. Whole-genome sequencing showed that the genome of this strain consists of a 4,975,832-bp chromosome and four plasmids. The mcr-1 and bla NDM-1 genes are located on IncI2 and IncA/C2-type plasmids, respectively. Genetic analysis revealed the presence of a multidrug-resistant region with the structure of a novel complex class 1 integron including a class 1 integron region bearing two 5' conserved segments and one 3' conserved segment and two complete structures of ISCR1. The complex integron contains aminoglycoside resistance genes aadA2, aadB, strA, strB, and aphA6, quinolone resistance gene qnrA1, extended-spectrum β-lactamase gene bla OXA- 4, and a Tn125-like transposon bearing bla NDM-1. In addition, the dfrA12-gcuF-aadA2-cmlA1-aadA1-qacH gene cassette array belonging to the sul3-type integron was also identified, but the region found downstream of the gene cassette array is the IS440-tet(M)-IS26 element instead of the sul3 gene. The results further support that Enterobacteriaceae isolates co-harboring mcr and bla NDM are widely being distributed. The structural characteristics of the complex integron reveal that ISCR1 elements play an important role in the mobilization of bla NDM-1 and the development of multidrug-resistant regions.
Collapse
Affiliation(s)
- Hong-Ngoc Le-Vo
- Department of Immunology and Microbiology, Pasteur Institute in Ho Chi Minh City, Ho Chi Minh City, Vietnam
| | - Phuong Thi-Bich Tran
- Department of Immunology and Microbiology, Pasteur Institute in Ho Chi Minh City, Ho Chi Minh City, Vietnam
| | - Lien Le
- Department of Immunology and Microbiology, Pasteur Institute in Ho Chi Minh City, Ho Chi Minh City, Vietnam
| | - Yuki Matsumoto
- Genome Information Research Center, Research Institute for Microbial Diseases, Osaka University, Osaka, Japan
| | - Daisuke Motooka
- Genome Information Research Center, Research Institute for Microbial Diseases, Osaka University, Osaka, Japan
| | - Shota Nakamura
- Genome Information Research Center, Research Institute for Microbial Diseases, Osaka University, Osaka, Japan
| | - James W Jones
- Department of Bacterial and Parasitic Diseases, Armed Forces Research Institute of Medical Sciences, Bangkok, Thailand
| | - Tetsuya Iida
- Genome Information Research Center, Research Institute for Microbial Diseases, Osaka University, Osaka, Japan.,Department of Bacterial Infections, Research Institute for Microbial Diseases, Osaka University, Osaka, Japan
| | - Van Cao
- Department of Immunology and Microbiology, Pasteur Institute in Ho Chi Minh City, Ho Chi Minh City, Vietnam
| |
Collapse
|
12
|
Malchione MD, Torres LM, Hartley DM, Koch M, Goodman JL. Carbapenem and colistin resistance in Enterobacteriaceae in Southeast Asia: Review and mapping of emerging and overlapping challenges. Int J Antimicrob Agents 2019; 54:381-399. [DOI: 10.1016/j.ijantimicag.2019.07.019] [Citation(s) in RCA: 50] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2019] [Revised: 07/16/2019] [Accepted: 07/21/2019] [Indexed: 01/21/2023]
|
13
|
Arpornsuwan T, Paveenkittiporn W, Jaresitthikunchai J, Roytrakul S. BAMP-28 Antimicrobial Peptide Against Different MALDI Biotype of Carbapenam Resistant Enterobacteriaceae. Int J Pept Res Ther 2019. [DOI: 10.1007/s10989-018-9743-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
14
|
Aeksiri N, Toanan W, Sawikan S, Suwannarit R, Pungpomin P, Khieokhajonkhet A, Niumsup PR. First Detection and Genomic Insight into mcr-1 Encoding Plasmid-Mediated Colistin-Resistance Gene in Escherichia coli ST101 Isolated from the Migratory Bird Species Hirundo rustica in Thailand. Microb Drug Resist 2019; 25:1437-1442. [PMID: 31334682 DOI: 10.1089/mdr.2019.0020] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Background: This study aimed to investigate the occurrence of mcr-1 encoding plasmid-mediated colistin-resistance gene in Escherichia coli isolated from migratory birds in Thailand. Materials and Methods: A total of 178 cloacal swabs from migratory birds was sampled and isolated from 2016 to 2017 in Nan, Trang, and Bangkok, Thailand. The multiplex polymerase chain reaction was used to screen the resistance genes. After screening, a disk diffusion assay and the minimum inhibitory concentration were investigated. The draft genome sequence of isolate 2A85589 was obtained using an Illumina HiSeq X-Ten platform. The genome was assembled using SPAdes 3.0.0. Antimicrobial resistance genes were identified using ResFinder 3.1. Results: We reported E. coli ST101 of isolate 2A85589, an mcr-1-carrying resistance gene isolated from the migratory bird species Hirundo rustica in Thailand. The draft genome of 2A85589 was 4,621,016 bp in size. IncHI1A plasmid was identified using PlasmidFinder with high coverage. In silico analysis detected the presence of eight putative acquired resistance genes, namely blaTEM-1B, mcr-1, mef(A), mef(B), QnrS1, sul3, tet(A), and tet(B), which conferred resistance to β-lactam, colistin, macrolide, quinolone, sulfonamide, and tetracycline. Conclusion: This study underlines the potential risk of the environmental contamination of mcr-1-carrying E. coli isolated from the migratory bird. The long range migration of birds can result in dissemination of mcr-1-carrying bacteria globally. Therefore, plasmid-mediated colistin is an urgent need to be addressed in both human and veterinary medicine for disease control and prevention.
Collapse
Affiliation(s)
- Niran Aeksiri
- Center for Agriculture Biotechnology, Faculty of Agriculture, Natural Resources, and Environment, Naresuan University, Phitsanulok, Thailand
- Department of Agricultural Science, Faculty of Agriculture, Natural Resources, and Environment, Naresuan University, Phitsanulok, Thailand
| | - Wansane Toanan
- Wildlife Conservation Office, Department of National Park, Wildlife and Plant Conservation, Bangkok, Thailand
| | - Sirinan Sawikan
- Department of Agricultural Science, Faculty of Agriculture, Natural Resources, and Environment, Naresuan University, Phitsanulok, Thailand
| | - Rujikorn Suwannarit
- Department of Agricultural Science, Faculty of Agriculture, Natural Resources, and Environment, Naresuan University, Phitsanulok, Thailand
| | - Prompong Pungpomin
- Department of Biology, Faculty of Science, Naresuan University, Phitsanulok, Thailand
| | - Anurak Khieokhajonkhet
- Center for Agriculture Biotechnology, Faculty of Agriculture, Natural Resources, and Environment, Naresuan University, Phitsanulok, Thailand
- Department of Agricultural Science, Faculty of Agriculture, Natural Resources, and Environment, Naresuan University, Phitsanulok, Thailand
| | - Pannika R Niumsup
- Department of Microbiology and Parasitology, Faculty of Medical Science, Naresuan University, Phitsanulok, Thailand
| |
Collapse
|
15
|
Abstract
Polymyxins are important lipopeptide antibiotics that serve as the last-line defense against multidrug-resistant (MDR) Gram-negative bacterial infections. Worryingly, the clinical utility of polymyxins is currently facing a serious threat with the global dissemination of mcr, plasmid-mediated polymyxin resistance. The first plasmid-mediated polymyxin resistance gene, termed as mcr-1 was identified in China in November 2015. Following its discovery, isolates carrying mcr, mainly mcr-1 and less commonly mcr-2 to -7, have been reported across Asia, Africa, Europe, North America, South America and Oceania. This review covers the epidemiological, microbiological and genomics aspects of this emerging threat to global human health. The mcr has been identified in various species of Gram-negative bacteria including Escherichia coli, Klebsiella pneumoniae, Klebsiella oxytoca, Salmonella enterica, Cronobacter sakazakii, Kluyvera ascorbata, Shigella sonnei, Citrobacter freundii, Citrobacter braakii, Raoultella ornithinolytica, Proteus mirabilis, Aeromonas, Moraxella and Enterobacter species from animal, meat, food product, environment and human sources. More alarmingly is the detection of mcr in extended-spectrum-β-lactamases- and carbapenemases-producing bacteria. The mcr can be carried by different plasmids, demonstrating the high diversity of mcr plasmid reservoirs. Our review analyses the current knowledge on the emergence of mcr-mediated polymyxin resistance.
Collapse
Affiliation(s)
- Sue C Nang
- a Department of Microbiology, Monash Biomedicine Discovery Institute , Monash University , Melbourne , Australia
| | - Jian Li
- a Department of Microbiology, Monash Biomedicine Discovery Institute , Monash University , Melbourne , Australia
| | - Tony Velkov
- b Department of Pharmacology and Therapeutics, School of Biomedical Sciences, Faculty of Medicine, Dentistry and Health Sciences , The University of Melbourne , Parkville , Australia
| |
Collapse
|
16
|
Shanmugakani RK, Akeda Y, Sugawara Y, Laolerd W, Chaihongsa N, Sirichot S, Yamamoto N, Hagiya H, Morii D, Fujiya Y, Nishi I, Yoshida H, Takeuchi D, Sakamoto N, Malathum K, Santanirand P, Tomono K, Hamada S. PCR-Dipstick-Oriented Surveillance and Characterization of mcr-1- and Carbapenemase-Carrying Enterobacteriaceae in a Thai Hospital. Front Microbiol 2019; 10:149. [PMID: 30800104 PMCID: PMC6375898 DOI: 10.3389/fmicb.2019.00149] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2018] [Accepted: 01/21/2019] [Indexed: 01/31/2023] Open
Abstract
Colistin is used as an alternative therapeutic for carbapenemase-producing Enterobacteriaceae (CPE) infections which are spreading at a very high rate due to the transfer of carbapenemase genes through mobile genetic elements. Due to the emergence of mcr-1, the plasmid-mediated colistin resistance gene, mcr-1-positive Enterobacteriaceae (MCRPEn) pose a high risk for the transfer of mcr-1-carrying plasmid to CPE, leading to a situation with no treatment alternatives for infections caused by Enterobacteriaceae possessing both mcr-1 and carbapenemase genes. Here, we report the application of PCR-dipstick-oriented surveillance strategy to control MCRPEn and CPE by conducting the PCR-dipstick technique for the detection of MCRPEn and CPE in a tertiary care hospital in Thailand and comparing its efficacy with conventional surveillance method. Our surveillance results showed a high MCRPEn (5.9%) and CPE (8.7%) carriage rate among the 219 rectal swab specimens examined. Three different CPE clones were determined by pulsed-field gel electrophoresis (PFGE) whereas only two MCRPEn isolates were found to be closely related as shown by single nucleotide polymorphism-based phylogenetic analysis. Whole genome sequencing (WGS) and plasmid analysis showed that MCRPEn carried mcr-1 in two plasmids types—IncX4 and IncI2 with ~99% identity to the previously reported mcr-1-carrying plasmids. The identification of both MCRPEn and CPE in the same specimen indicates the plausibility of plasmid-mediated transfer of mcr-1 genes leading to the emergence of colistin- and carbapenem-resistant Enterobacteriaceae. The rapidity (<2 h) and robust sensitivity (100%)/specificity (~99%) of PCR-dipstick show that this specimen-direct screening method could aid in implementing infection control measures at the earliest to control the dissemination of MCRPEn and CPE.
Collapse
Affiliation(s)
- Rathina Kumar Shanmugakani
- Research Institute for Microbial Diseases, Osaka University, Suita, Japan.,Department of Infection Control and Prevention, Graduate School of Medicine, Osaka University, Suita, Japan.,Division of Infection Control and Prevention, Osaka University Hospital, Suita, Japan
| | - Yukihiro Akeda
- Research Institute for Microbial Diseases, Osaka University, Suita, Japan.,Department of Infection Control and Prevention, Graduate School of Medicine, Osaka University, Suita, Japan.,Division of Infection Control and Prevention, Osaka University Hospital, Suita, Japan
| | - Yo Sugawara
- Research Institute for Microbial Diseases, Osaka University, Suita, Japan
| | - Warawut Laolerd
- Faculty of Medicine Ramathibodi Hospital, Mahidol University, Bangkok, Thailand
| | - Narong Chaihongsa
- Faculty of Medicine Ramathibodi Hospital, Mahidol University, Bangkok, Thailand
| | - Suntariya Sirichot
- Faculty of Medicine Ramathibodi Hospital, Mahidol University, Bangkok, Thailand
| | - Norihisa Yamamoto
- Research Institute for Microbial Diseases, Osaka University, Suita, Japan.,Department of Infection Control and Prevention, Graduate School of Medicine, Osaka University, Suita, Japan.,Division of Infection Control and Prevention, Osaka University Hospital, Suita, Japan
| | - Hideharu Hagiya
- Research Institute for Microbial Diseases, Osaka University, Suita, Japan.,Department of Infection Control and Prevention, Graduate School of Medicine, Osaka University, Suita, Japan.,Division of Infection Control and Prevention, Osaka University Hospital, Suita, Japan
| | - Daiichi Morii
- Department of Infection Control and Prevention, Graduate School of Medicine, Osaka University, Suita, Japan.,Division of Infection Control and Prevention, Osaka University Hospital, Suita, Japan
| | - Yoshihiro Fujiya
- Research Institute for Microbial Diseases, Osaka University, Suita, Japan.,Department of Infection Control and Prevention, Graduate School of Medicine, Osaka University, Suita, Japan.,Division of Infection Control and Prevention, Osaka University Hospital, Suita, Japan
| | - Isao Nishi
- Laboratory of Clinical Investigation, Osaka University Hospital, Suita, Japan
| | - Hisao Yoshida
- Research Institute for Microbial Diseases, Osaka University, Suita, Japan.,Department of Infection Control and Prevention, Graduate School of Medicine, Osaka University, Suita, Japan.,Division of Infection Control and Prevention, Osaka University Hospital, Suita, Japan
| | - Dan Takeuchi
- Research Institute for Microbial Diseases, Osaka University, Suita, Japan
| | - Noriko Sakamoto
- Research Institute for Microbial Diseases, Osaka University, Suita, Japan
| | - Kumthorn Malathum
- Faculty of Medicine Ramathibodi Hospital, Mahidol University, Bangkok, Thailand
| | - Pitak Santanirand
- Faculty of Medicine Ramathibodi Hospital, Mahidol University, Bangkok, Thailand
| | - Kazunori Tomono
- Department of Infection Control and Prevention, Graduate School of Medicine, Osaka University, Suita, Japan.,Division of Infection Control and Prevention, Osaka University Hospital, Suita, Japan
| | - Shigeyuki Hamada
- Research Institute for Microbial Diseases, Osaka University, Suita, Japan
| |
Collapse
|
17
|
Draft genome sequence of a colistin-resistant Escherichia coli ST226: A clinical strain harbouring an mcr-1 variant. J Glob Antimicrob Resist 2019; 16:168-169. [PMID: 30659982 DOI: 10.1016/j.jgar.2019.01.009] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2018] [Accepted: 01/07/2019] [Indexed: 11/20/2022] Open
Abstract
OBJECTIVES Escherichia coli isolates carrying the mcr-1 gene are rarely reported in diarrhoeal patients. Here we report the draft genome sequence of a colistin-resistant E. coli isolated from a hospitalised patient with acute diarrhoea in Thailand. METHODS Whole genomic DNA of the colistin-resistant E. coli isolate (MSF11) was extracted and was sequenced using an Ion Torrent sequencer with 400-bp read chemistry. The draft genome sequence of MSF11 was analysed with regard to multilocus sequence type (ST), serotype, acquired antimicrobial resistance genes, plasmid replicon types and virulence genes using tools from the Center for Genomic Epidemiology. RESULTS E. coli strain MSF11 was serotype OUT:H10 and ST226. Acquired antimicrobial resistance genes [blaCTX-M-15, qnrS1, catA2, mdf(A) and mcr-1.1] and virulence-related genes (astA and gad) were identified. The mcr-1 gene contained a single nucleotide polymorphism at position 27 (C→T) of the prototype, and the variant gene was associated with an IncX4-type plasmid. This plasmid-borne colistin resistance mediated by the mcr-1 variant has been observed among colistin-resistant strains from humans, animals and the environment previously reported in Thailand, although the STs and serotypes of the E. coli strains were different. CONCLUSIONS An mcr-1 variant was identified in an E. coli isolate harbouring the EAST1 (enteroaggregative E. coli heat-stable toxin 1) gene (astA) from a human diarrhoeal stool specimen. This study highlights the potential risk of dissemination of colistin-resistant E. coli in view of the prevalence of the variant gene on IncX4-type plasmids.
Collapse
|
18
|
Ding S, Han X, Li J, Gao W, Chen Z, Feng Y. Discovery of multi-drug resistant, MCR-1 and ESBL-coproducing ST117 Escherichia coli from diseased chickens in northeast China. Sci Bull (Beijing) 2018; 63:1059-1066. [PMID: 36755458 DOI: 10.1016/j.scib.2018.07.017] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2018] [Revised: 06/11/2018] [Accepted: 06/22/2018] [Indexed: 11/26/2022]
Abstract
An endemic multi-drug resistant ST117 E. coli isolate coproducing MCR-1 and 3 ESBL loci was, for the first time, detected from diseased chicken, Liaoning Province, in Northeast China, from 2011 to 2012. Whole-genome sequencing revealed 5 unique plasmids, namely pHXH-1, pHXH-2, pHXH-3, pHXH-4 and pHXH-5). Among them, pHXH1 and pHXH4 encode ESBL, and pHXH-5 mediates MCR-1 colistin resistance. The results indicate that the potentially-national dissemination of MCR-1-positive pathogens with pan-drug resistance proceeds via food chains.
Collapse
Affiliation(s)
- Sijia Ding
- School of Stomatology, Zhejiang Chinese Medical University, Hangzhou 310053, China
| | - Xiaohu Han
- Key Laboratory of Zoonotic of Liaoning Province, College of Animal Science and Veterinary Medicine, Shenyang Agricultural University, Liaoning Province, Shenyang 110866, China
| | - Jun Li
- College of Animal Sciences, Zhejiang University, Hangzhou 310058, China; College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou 310014, China
| | - Weifan Gao
- Key Laboratory of Zoonotic of Liaoning Province, College of Animal Science and Veterinary Medicine, Shenyang Agricultural University, Liaoning Province, Shenyang 110866, China
| | - Zeliang Chen
- Key Laboratory of Zoonotic of Liaoning Province, College of Animal Science and Veterinary Medicine, Shenyang Agricultural University, Liaoning Province, Shenyang 110866, China.
| | - Youjun Feng
- College of Animal Sciences, Zhejiang University, Hangzhou 310058, China.
| |
Collapse
|
19
|
Hatrongjit R, Kerdsin A, Akeda Y, Hamada S. Detection of plasmid-mediated colistin-resistant and carbapenem-resistant genes by multiplex PCR. MethodsX 2018; 5:532-536. [PMID: 30023315 PMCID: PMC6046614 DOI: 10.1016/j.mex.2018.05.016] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2018] [Accepted: 05/18/2018] [Indexed: 11/27/2022] Open
Abstract
A multiplex PCR was described to simultaneously detect mcr-1 and frequently occurring carbapenem-resistant genes including blaKPC, blaNDM, blaIMP, and blaOXA-48-like in a single reaction. The PCR product sizes of these 4 carbapenem-resistant genes were 232 bp, 438 bp, 621 bp, and 798 bp for blaIMP, blaOXA-48-like, blaNDM, and blaKPC, respectively, whereas mcr-1 revealed 1126 bp of PCR product. This protocol accurately detected those resistant genes in agreement with the reference strains, 127 local carbapenem-resistant Enterobacteriaceae, 8 mcr-1 carrying Enterobacteriaceae, and 62 carbapenem-susceptible Enterobacteriaceae. This method will be useful for laboratory application and surveillance of carbapenem and/or colistin-resistant bacteria.
Collapse
Affiliation(s)
- Rujirat Hatrongjit
- Faculty of Science and Engineering, Kasetsart University, Chalermphrakiat Sakon Nakhon Province Campus, Sakon Nakhon, Thailand
| | - Anusak Kerdsin
- Faculty of Public Health, Kasetsart University, Chalermphrakiat Sakon Nakhon Province Campus, Sakon Nakhon, Thailand
| | - Yukihiro Akeda
- Department of Infection Control and Prevention, Graduate School of Medicine, Osaka University, Osaka, Japan
| | - Shigeyuki Hamada
- Thailand-Japan Research Collaboration Center on Emerging and Re-emerging Infections, Research Institute for Microbial Diseases, Osaka University, Osaka, Japan
| |
Collapse
|
20
|
Srijan A, Margulieux KR, Ruekit S, Snesrud E, Maybank R, Serichantalergs O, Kormanee R, Sukhchat P, Sriyabhaya J, Hinkle M, Crawford JM, McGann P, Swierczewski BE. Genomic Characterization of Nonclonal mcr-1-Positive Multidrug-Resistant Klebsiella pneumoniae from Clinical Samples in Thailand. Microb Drug Resist 2018; 24:403-410. [PMID: 29688801 PMCID: PMC5946733 DOI: 10.1089/mdr.2017.0400] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
Multidrug-resistant Klebsiella pneumoniae strains are one of the most prevalent causes of nosocomial infections and pose an increasingly dangerous public health threat. The lack of remaining treatment options has resulted in the utilization of older drug classes, including colistin. As a drug of last resort, the discovery of plasmid-mediated colistin resistance by mcr-1 denotes the potential development of pandrug-resistant bacterial pathogens. To address the emergence of the mcr-1 gene, 118 gram-negative Enterobacteriaceae isolated from clinical samples collected at Queen Sirikit Naval Hospital in Chonburi, Thailand were screened for colistin resistance using automated antimicrobial susceptibility testing and conventional PCR screening. Two K. pneumoniae strains, QS17-0029 and QS17-0161, were positive for mcr-1, and both isolates were sequenced to closure using short- and long-read whole-genome sequencing. QS17-0029 carried 16 antibiotic resistance genes in addition to mcr-1, including 2 carbapenemases, blaNDM-1 and blaOXA-232. QS17-0161 carried 13 antibiotic resistance genes in addition to mcr-1, including the extended-spectrum β-lactamase blaCTX-M-55. Both isolates carried multiple plasmids, but mcr-1 was located alone on highly similar 33.9 Kb IncX4 plasmids in both isolates. The IncX4 plasmid shared considerable homology to other mcr-1-containing IncX4 plasmids. This is the first report of a clinical K. pneumoniae strain from Thailand carrying mcr-1 as well as the first strain to simultaneously carry mcr-1 and multiple carbapenemase genes (QS17-0029). The identification and characterization of these isolates serves to highlight the urgent need for continued surveillance and intervention in Southeast Asia, where extensively drug-resistant pathogens are being increasingly identified in hospital-associated infections.
Collapse
Affiliation(s)
- Apichai Srijan
- 1 Department of Enteric Diseases, Armed Forces Research Institute of Medical Sciences , Bangkok, Thailand
| | - Katie R Margulieux
- 1 Department of Enteric Diseases, Armed Forces Research Institute of Medical Sciences , Bangkok, Thailand
| | - Sirigade Ruekit
- 1 Department of Enteric Diseases, Armed Forces Research Institute of Medical Sciences , Bangkok, Thailand
| | - Erik Snesrud
- 2 The Multidrug Resistant Organism Repository and Surveillance Network, Walter Reed Army Institute of Research , Silver Spring, Maryland
| | - Rosslyn Maybank
- 2 The Multidrug Resistant Organism Repository and Surveillance Network, Walter Reed Army Institute of Research , Silver Spring, Maryland
| | - Oralak Serichantalergs
- 1 Department of Enteric Diseases, Armed Forces Research Institute of Medical Sciences , Bangkok, Thailand
| | | | | | | | - Mary Hinkle
- 2 The Multidrug Resistant Organism Repository and Surveillance Network, Walter Reed Army Institute of Research , Silver Spring, Maryland
| | - John M Crawford
- 1 Department of Enteric Diseases, Armed Forces Research Institute of Medical Sciences , Bangkok, Thailand
| | - Patrick McGann
- 2 The Multidrug Resistant Organism Repository and Surveillance Network, Walter Reed Army Institute of Research , Silver Spring, Maryland
| | - Brett E Swierczewski
- 1 Department of Enteric Diseases, Armed Forces Research Institute of Medical Sciences , Bangkok, Thailand
| |
Collapse
|
21
|
Chan WS, Au CH, Ho DN, Chan TL, Ma ESK, Tang BSF. Prospective study on human fecal carriage of Enterobacteriaceae possessing mcr-1 and mcr-2 genes in a regional hospital in Hong Kong. BMC Infect Dis 2018; 18:81. [PMID: 29439654 PMCID: PMC5812201 DOI: 10.1186/s12879-018-2987-y] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2017] [Accepted: 01/31/2018] [Indexed: 01/08/2023] Open
Abstract
BACKGROUND Human fecal carriage of Enterobacteriaceae possessing mobilized colistin resistance genes (mcr-1 and mcr-2) remains obscure in Hong Kong. As part of routine surveillance on emerging antibiotic resistance, we conducted a prospective study on this topic in a regional hospital in Hong Kong. METHODS From October 31 to November 25, 2016, all fecal specimens submitted for routine analysis were included in this surveillance study. These comprised 672 consecutive routine fecal specimens collected from 616 individuals. Fecal specimens were screened for colistin-resistant Enterobacteriaceae by culture-based method, and the presence of mcr-1 and mcr-2 genes in resistant isolates was identified by polymerase chain reaction and Sanger sequencing. Whole genome sequencing (WGS) of mcr-1-possessing Escherichia coli strains was facilitated using Illumina® MiSeq® followed by sequence analysis with appropriate bioinformatics tools. RESULTS Fourteen mcr-1-positive E. coli strains were isolated from 14 separate individuals (2.08% of total fecal specimens), with 9 of them being asymptomatic, healthy clients coming for health assessment. No mcr-2-possessing Enterobacteriaceae was identified. Colistin minimum inhibitory concentrations of these mcr-1-positive isolates ranged from 2 to 4 μg/mL. All these isolates were susceptible to carbapenems with 2 being extended spectrum β-lactamase producers. WGS data revealed that these isolates belonged to at least 12 different sequence types (STs) and possessed diversified plasmid replicons, virulence and acquired antibiotic resistance genes. Further study on an E. coli ST201 strain (Pasteur scheme) revealed coexistence of 47,818-bp IncP-1 and 33,309-bp IncX4 types of mcr-1 plasmids, which was a combination of stability and high transmissibility. CONCLUSIONS To the best of our knowledge, this is the first study on human fecal carriage of Enterobacteriaceae possessing mcr-1 and mcr-2 genes in Hong Kong. Our data further revealed asymptomatic carriage of mcr-1-possessing Enterobacteriaceae by both patients and healthy individuals. This is alarming considering wide diversity and high transmissibility of mcr-1 plasmids, which potentially facilitate emergence of pan-drug-resistant bacteria in future infection. This also highlights the importance of surveillance on emerging antibiotic resistance, especially for patients under intensive care.
Collapse
Affiliation(s)
- Wai-Sing Chan
- Department of Pathology, 1/F, Li Shu Fan Block, Hong Kong Sanatorium & Hospital, 2 Village Road, Happy Valley, Hong Kong
| | - Chun-Hang Au
- Department of Pathology, 1/F, Li Shu Fan Block, Hong Kong Sanatorium & Hospital, 2 Village Road, Happy Valley, Hong Kong
| | - Dona N. Ho
- Department of Pathology, 1/F, Li Shu Fan Block, Hong Kong Sanatorium & Hospital, 2 Village Road, Happy Valley, Hong Kong
| | - Tsun-Leung Chan
- Department of Pathology, 1/F, Li Shu Fan Block, Hong Kong Sanatorium & Hospital, 2 Village Road, Happy Valley, Hong Kong
| | - Edmond Shiu-Kwan Ma
- Department of Pathology, 1/F, Li Shu Fan Block, Hong Kong Sanatorium & Hospital, 2 Village Road, Happy Valley, Hong Kong
| | - Bone Siu-Fai Tang
- Department of Pathology, 1/F, Li Shu Fan Block, Hong Kong Sanatorium & Hospital, 2 Village Road, Happy Valley, Hong Kong
| |
Collapse
|
22
|
Kromann S, Kudirkiene E, Li L, Thoefner I, Daldorph E, Christensen JP, Meng H, Olsen RH. Treatment with high-dose antidepressants severely exacerbates the pathological outcome of experimental Escherichia coli infections in poultry. PLoS One 2017; 12:e0185914. [PMID: 29020098 PMCID: PMC5636113 DOI: 10.1371/journal.pone.0185914] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2017] [Accepted: 09/21/2017] [Indexed: 11/18/2022] Open
Abstract
There is an urgent need for novel antibiotics as the current antibiotics are losing their value due to increased resistance among clinically important bacteria. Sertraline, an on-marked anti-depressive drug, has been shown to modify bacterial activity in vitro, including increasing the susceptibility of Escherichia coli to antibiotics. The aim of the present study was to investigate if the antimicrobial activity of sertraline could be documented under clinical settings, hereunder if sertraline could potentiate the effect of tetracycline in treatment of an experimentally induced ascending infection in poultry. A total of 40 chickens were divided in four groups of 10 chickens each. All chickens were challenged with 4x103 colony forming units (CFU) of a tetracycline resistant E. coli strain using a surgical infection model, and subsequently treated with either high-dose sertraline, tetracycline, a combination hereof or received no treatment. Seven days post challenge all birds were submitted to necropsy and scored pathologically for lesions. The average lesion scores were significantly higher (P<0.05) in the groups that were treated with high-dose sertraline or high-dose sertraline combined with tetracycline. In conclusion high-dose treatments (four times the maximum therapeutic dose for treating human depression) with sertraline as an adjuvant for treatment of antibiotic resistant E. coli infections exacerbate the pathological outcome of infection in chickens.
Collapse
Affiliation(s)
- Sofie Kromann
- Department of Veterinary and Animal Sciences, University of Copenhagen, Frederiksberg, Denmark
| | - Egle Kudirkiene
- Department of Veterinary and Animal Sciences, University of Copenhagen, Frederiksberg, Denmark
| | - Lili Li
- Research Institute of Food Safety and Nutrition, Jinan University, Guangzhou, People's Republic of China
| | - Ida Thoefner
- Department of Veterinary and Animal Sciences, University of Copenhagen, Frederiksberg, Denmark
| | - Elisabeth Daldorph
- Department of Veterinary and Animal Sciences, University of Copenhagen, Frederiksberg, Denmark
| | - Jens Peter Christensen
- Department of Veterinary and Animal Sciences, University of Copenhagen, Frederiksberg, Denmark
| | - Hecheng Meng
- School of Food Science and Engineering, South China University of Technology, Guangzhou, People’s Republic of China
| | - Rikke Heidemann Olsen
- Department of Veterinary and Animal Sciences, University of Copenhagen, Frederiksberg, Denmark
- * E-mail:
| |
Collapse
|
23
|
Webb HE, Angulo FJ, Granier SA, Scott HM, Loneragan GH. Illustrative examples of probable transfer of resistance determinants from food animals to humans: Streptothricins, glycopeptides, and colistin. F1000Res 2017; 6:1805. [PMID: 29188021 PMCID: PMC5686510 DOI: 10.12688/f1000research.12777.1] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 11/15/2017] [Indexed: 12/24/2022] Open
Abstract
Use, overuse, and misuse of antimicrobials contributes to selection and dissemination of bacterial resistance determinants that may be transferred to humans and constitute a global public health concern. Because of the continued emergence and expansion of antimicrobial resistance, combined with the lack of novel antimicrobial agents, efforts are underway to preserve the efficacy of current available life-saving antimicrobials in humans. As a result, uses of medically important antimicrobials in food animal production have generated debate and led to calls to reduce both antimicrobial use and the need for use. This manuscript, commissioned by the World Health Organization (WHO) to help inform the development of the WHO guidelines on the use of medically important antimicrobials in food animals, includes three illustrations of antimicrobial use in food animal production that has contributed to the selection-and subsequent transfer-of resistance determinants from food animals to humans. Herein, antimicrobial use and the epidemiology of bacterial resistance are described for streptothricins, glycopeptides, and colistin. Taken together, these historical and current narratives reinforce the need for actions that will preserve the efficacy of antimicrobials.
Collapse
Affiliation(s)
- Hattie E. Webb
- International Center for Food Industry Excellence, Department of Animal and Food Sciences, Texas Tech University, Lubbock, TX, 79409, USA
| | - Frederick J. Angulo
- Division of Global Health Protection, Center for Global Health, Centers for Disease Control and Prevention, Atlanta, GA, 30333, USA
| | - Sophie A. Granier
- Laboratory for Food Safety, Anses, Université Paris-Est, Maisons-Alfort, F-94701, France
| | - H. Morgan Scott
- Department of Veterinary Pathobiology, College of Veterinary Medicine and Biomedical Sciences, Texas A&M University, College Station, TX, 77843, USA
| | - Guy H. Loneragan
- International Center for Food Industry Excellence, Department of Animal and Food Sciences, Texas Tech University, Lubbock, TX, 79409, USA
| |
Collapse
|
24
|
Khan AU, Maryam L, Zarrilli R. Structure, Genetics and Worldwide Spread of New Delhi Metallo-β-lactamase (NDM): a threat to public health. BMC Microbiol 2017; 17:101. [PMID: 28449650 PMCID: PMC5408368 DOI: 10.1186/s12866-017-1012-8] [Citation(s) in RCA: 320] [Impact Index Per Article: 45.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2017] [Accepted: 04/14/2017] [Indexed: 01/07/2023] Open
Abstract
Background The emergence of carbapenemase producing bacteria, especially New Delhi metallo-β-lactamase (NDM-1) and its variants, worldwide, has raised amajor public health concern. NDM-1 hydrolyzes a wide range of β-lactam antibiotics, including carbapenems, which are the last resort of antibiotics for the treatment of infections caused by resistant strain of bacteria. Main body In this review, we have discussed blaNDM-1variants, its genetic analysis including type of specific mutation, origin of country and spread among several type of bacterial species. Wide members of enterobacteriaceae, most commonly Escherichia coli, Klebsiella pneumoniae, Enterobacter cloacae, and gram-negative non-fermenters Pseudomonas spp. and Acinetobacter baumannii were found to carry these markers. Moreover, at least seventeen variants of blaNDM-type gene differing into one or two residues of amino acids at distinct positions have been reported so far among different species of bacteria from different countries. The genetic and structural studies of these variants are important to understand the mechanism of antibiotic hydrolysis as well as to design new molecules with inhibitory activity against antibiotics. Conclusion This review provides a comprehensive view of structural differences among NDM-1 variants, which are a driving force behind their spread across the globe. Electronic supplementary material The online version of this article (doi:10.1186/s12866-017-1012-8) contains supplementary material, which is available to authorized users.
Collapse
Affiliation(s)
- Asad U Khan
- Medical Microbiology and Molecular Biology Laboratory, Interdisciplinary Biotechnology Unit, Aligarh Muslim University, Aligarh, 202002, India.
| | - Lubna Maryam
- Medical Microbiology and Molecular Biology Laboratory, Interdisciplinary Biotechnology Unit, Aligarh Muslim University, Aligarh, 202002, India
| | - Raffaele Zarrilli
- Department of Public Health, University of Napoli Federico II, Italy, Naples, Italy. .,CEINGE Biotecnologie Avanzate, Naples, Italy.
| |
Collapse
|
25
|
Wattal C, Javeri Y, Goel N, Dhar D, Saxena S, Singh S, Oberoi JK, Rao BK, Mathur P, Manchanda V, Nangia V, Kapil A, Rattan A, Ghosh S, Singh O, Singh V, Kaur I, Datta S, Gupta SS. Convergence of Minds: For Better Patient Outcome in Intensive Care Unit Infections. Indian J Crit Care Med 2017; 21:154-159. [PMID: 28400686 PMCID: PMC5363104 DOI: 10.4103/ijccm.ijccm_365_16] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND There is emergence of resistance to the last-line antibiotics such as carbapenems in Intensive Care Units (ICUs), leaving little effective therapeutic options. Since there are no more newer antibiotics in the armamentarium in the near future, it has become imperative that we harness the interdisciplinary knowledge for the best clinical outcome of the patient. AIMS The aim of the conference was to utilize the synergies between the clinical microbiologists and critical care specialists for better patient care and clinical outcome. MATERIALS AND METHODS A combined continuing medical education program (CME) under the aegis of the Indian Association of Medical Microbiologists - Delhi Chapter and the Indian Society of Critical Care Medicine, Delhi and national capital region was organized to share their expertise on the various topics covering epidemiology, diagnosis, management, and prevention of hospital-acquired infections in ICUs. RESULTS It was agreed that synergy between the clinical microbiologists and critical care medicine is required in understanding the scope of laboratory tests, investigative pathway testing, hospital epidemiology, and optimum use of antibiotics. A consensus on the use of rapid diagnostics such as point-of-care tests, matrix-assisted laser desorption ionization-time of flight mass spectrometry, and molecular tests for the early diagnosis of infectious disease was made. It was agreed that stewardship activities along with hospital infection control practices should be further strengthened for better utilization of the antibiotics. Through this CME, we identified the barriers and actionables for appropriate antimicrobial usage in Indian ICUs. CONCLUSIONS A close coordination between clinical microbiology and critical care medicine opens up avenues to improve antimicrobial prescription practices.
Collapse
Affiliation(s)
- Chand Wattal
- Indian Association of Medical Microbiologists – Delhi Chapter, New Delhi, India
- Address for correspondence: Dr. Chand Wattal, Department of Clinical Microbiology and Immunology, Sir Ganga Ram Hospital, New Delhi - 110 060, India. E-mail:
| | - Yash Javeri
- Indian Society of Critical Care Medicine, New Delhi, India
| | - Neeraj Goel
- Indian Association of Medical Microbiologists – Delhi Chapter, New Delhi, India
| | - Debashish Dhar
- Indian Society of Critical Care Medicine, New Delhi, India
| | - Sonal Saxena
- Indian Association of Medical Microbiologists – Delhi Chapter, New Delhi, India
| | - Sarman Singh
- Indian Association of Medical Microbiologists – Delhi Chapter, New Delhi, India
| | | | - B. K. Rao
- Indian Society of Critical Care Medicine, New Delhi, India
| | - Purva Mathur
- Indian Association of Medical Microbiologists – Delhi Chapter, New Delhi, India
| | - Vikas Manchanda
- Indian Association of Medical Microbiologists – Delhi Chapter, New Delhi, India
| | - Vivek Nangia
- Indian Society of Critical Care Medicine, New Delhi, India
| | - Arti Kapil
- Indian Association of Medical Microbiologists – Delhi Chapter, New Delhi, India
| | - Ashok Rattan
- Indian Association of Medical Microbiologists – Delhi Chapter, New Delhi, India
| | - Supradip Ghosh
- Indian Society of Critical Care Medicine, New Delhi, India
| | - Omender Singh
- Indian Society of Critical Care Medicine, New Delhi, India
| | - Vinod Singh
- Indian Society of Critical Care Medicine, New Delhi, India
| | - Iqbal Kaur
- Indian Association of Medical Microbiologists – Delhi Chapter, New Delhi, India
| | - Sanghamitra Datta
- Indian Association of Medical Microbiologists – Delhi Chapter, New Delhi, India
| | - Sharmila Sen Gupta
- Indian Association of Medical Microbiologists – Delhi Chapter, New Delhi, India
| |
Collapse
|