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Choi N, Choi E, Cho YJ, Kim MJ, Choi HW, Lee EJ. A shared mechanism of multidrug resistance in laboratory-evolved uropathogenic Escherichia coli. Virulence 2024; 15:2367648. [PMID: 38899601 PMCID: PMC11195483 DOI: 10.1080/21505594.2024.2367648] [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: 12/26/2023] [Accepted: 06/09/2024] [Indexed: 06/21/2024] Open
Abstract
The emergence of multidrug-resistant bacteria poses a significant threat to human health, necessitating a comprehensive understanding of their underlying mechanisms. Uropathogenic Escherichia coli (UPEC), the primary causative agent of urinary tract infections, is frequently associated with multidrug resistance and recurrent infections. To elucidate the mechanism of resistance of UPEC to beta-lactam antibiotics, we generated ampicillin-resistant UPEC strains through continuous exposure to low and high levels of ampicillin in the laboratory, referred to as Low AmpR and High AmpR, respectively. Whole-genome sequencing revealed that both Low and High AmpR strains contained mutations in the marR, acrR, and envZ genes. The High AmpR strain exhibited a single additional mutation in the nlpD gene. Using protein modeling and qRT-PCR analyses, we validated the contributions of each mutation in the identified genes to antibiotic resistance in the AmpR strains, including a decrease in membrane permeability, increased expression of multidrug efflux pump, and inhibition of cell lysis. Furthermore, the AmpR strain does not decrease the bacterial burden in the mouse bladder even after continuous antibiotic treatment in vivo, implicating the increasing difficulty in treating host infections caused by the AmpR strain. Interestingly, ampicillin-induced mutations also result in multidrug resistance in UPEC, suggesting a common mechanism by which bacteria acquire cross-resistance to other classes of antibiotics.
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Affiliation(s)
- Nakjun Choi
- Department of Life Sciences, School of Life Sciences and Biotechnology, Korea University, Seoul, South Korea
| | - Eunna Choi
- Department of Life Sciences, School of Life Sciences and Biotechnology, Korea University, Seoul, South Korea
| | - Yong-Joon Cho
- Department of Molecular Bioscience, Multidimensional Genomics Research Center, College of Biomedical Science, Kangwon National University, Chuncheon, South Korea
| | - Min Jung Kim
- Department of Life Sciences, School of Life Sciences and Biotechnology, Korea University, Seoul, South Korea
| | - Hae Woong Choi
- Department of Life Sciences, School of Life Sciences and Biotechnology, Korea University, Seoul, South Korea
| | - Eun-Jin Lee
- Department of Life Sciences, School of Life Sciences and Biotechnology, Korea University, Seoul, South Korea
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Lalakorn S, Singkhamanan K, Chukamnerd A, Chumtong S, Dechathai T, Boonsan J, Kompramool S, Muangkaew T, Yaikhan T, Chintakovid N, Chusri S, Pomwised R, Wonglapsuwan M, Surachat K. Genomic characteristics of carbapenem-non-susceptible Cronobacter sakazakii isolated from an ICU patient at the Songkhla Hospital, Thailand. Microbiol Resour Announc 2024:e0128123. [PMID: 39084684 DOI: 10.1128/mra.01281-23] [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: 12/25/2023] [Accepted: 07/16/2024] [Indexed: 08/02/2024] Open
Abstract
Cronobacter sakazakii is a pathogen that causes severe diseases such as meningitis and necrotizing enterocolitis in infants, associated with the consumption of rehydrated powder infant formula. We report a whole-genome sequence of carbapenem-non-susceptible C. sakazakii isolated from the nasopharynx of the patient admitted to the ICU ward, Songkhla Hospital, Thailand.
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Affiliation(s)
- Siriporn Lalakorn
- Division of Biological Science, Faculty of Medicine, Prince of Songkla University, Songkhla, Thailand
| | - Kamonnut Singkhamanan
- Department of Biomedical Sciences and Biomedical Engineering, Faculty of Medicine, Prince of Songkla University, Songkhla, Thailand
| | - Arnon Chukamnerd
- Division of Infectious Diseases, Department of Internal Medicine, Faculty of Medicine, Prince of Songkla University, Songkhla, Thailand
| | - Sanicha Chumtong
- Department of Biomedical Sciences and Biomedical Engineering, Faculty of Medicine, Prince of Songkla University, Songkhla, Thailand
| | - Thitaporn Dechathai
- Department of Biomedical Sciences and Biomedical Engineering, Faculty of Medicine, Prince of Songkla University, Songkhla, Thailand
| | - Jirasa Boonsan
- Department of Biomedical Sciences and Biomedical Engineering, Faculty of Medicine, Prince of Songkla University, Songkhla, Thailand
| | - Siriwan Kompramool
- Department of Biomedical Sciences and Biomedical Engineering, Faculty of Medicine, Prince of Songkla University, Songkhla, Thailand
| | - Thanchanok Muangkaew
- Department of Biomedical Sciences and Biomedical Engineering, Faculty of Medicine, Prince of Songkla University, Songkhla, Thailand
| | - Thunchanok Yaikhan
- Department of Biomedical Sciences and Biomedical Engineering, Faculty of Medicine, Prince of Songkla University, Songkhla, Thailand
| | - Nutwadee Chintakovid
- Department of Biomedical Sciences and Biomedical Engineering, Faculty of Medicine, Prince of Songkla University, Songkhla, Thailand
| | - Sarunyou Chusri
- Division of Infectious Diseases, Department of Internal Medicine, Faculty of Medicine, Prince of Songkla University, Songkhla, Thailand
| | - Rattanaruji Pomwised
- Division of Biological Science, Faculty of Medicine, Prince of Songkla University, Songkhla, Thailand
| | - Monwadee Wonglapsuwan
- Division of Biological Science, Faculty of Medicine, Prince of Songkla University, Songkhla, Thailand
| | - Komwit Surachat
- Department of Biomedical Sciences and Biomedical Engineering, Faculty of Medicine, Prince of Songkla University, Songkhla, Thailand
- Translational Medicine Research Center, Faculty of Medicine, Prince of Songkla University, Songkhla, Thailand
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Xia Z, Zhou J, Gao N, Li G, Liu R, Lu G, Shen J. AcrAB-TolC efflux pump overexpression and tet(A) gene mutation increase tigecycline resistance in Klebsiella pneumoniae. World J Microbiol Biotechnol 2024; 40:233. [PMID: 38842631 DOI: 10.1007/s11274-024-04039-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2024] [Accepted: 05/29/2024] [Indexed: 06/07/2024]
Abstract
Tigecycline-non-susceptible Klebsiella pneumoniae (TNSKP) is increasing and has emerged as a global public health issue. However, the mechanism of tigecycline resistance remains unclear. The objective of this study was to investigate the potential role of efflux pump system in tigecycline resistance. 29 tigecycline-non-susceptible Klebsiella pneumoniae (TNSKP) strains were collected and their minimum inhibitory concentrations (MIC) were determined by the broth microdilution method. The ramR, acrR, rpsJ, tet(A), and tet(X) were amplified by polymerase chain reaction (PCR). The mRNA expression of different efflux pump genes and regulator genes were analyzed by real-time PCR. Additionally, KP14 was selected for genome sequencing. KP14 genes without acrB, oqxB, and TetA were modified using suicide plasmids and MIC of tigecycline of KP14 with target genes knocked out was investigated. It was found that MIC of tigecycline of 20 out of the 29 TNSKP strains decreased by over four folds once combined with phenyl-arginine-β-naphthylamide dihydrochloride (PaβN). Most strains exhibited upregulation of AcrAB and oqxAB efflux pumps. The strains with acrB, oqxB, and tetA genes knocked out were constructed, wherein the MIC of tigecycline of KP14∆acrB and KP14∆tetA was observed to be 2 µg/mL (decreased by 16 folds), the MIC of tigecycline of KP14ΔacrBΔTetA was 0.25 µg/mL (decreased by 128 folds), but the MIC of tigecycline of KP14∆oqxB remained unchanged at 32 µg/mL. The majority of TNSKP strains demonstrated increased expression of AcrAB-TolC and oqxAB, while certain strains showed mutations in other genes associated with tigecycline resistance. In KP14, both overexpression of AcrAB-TolC and tet(A) gene mutation contributed to the mechanism of tigecycline resistance.
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Affiliation(s)
- Zhaoxin Xia
- Department of Clinical Laboratory, the First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, China
- Department of Clinical Laboratory, Anhui Public Health Clinical Center, Hefei, Anhui, China
| | - Jing Zhou
- Department of Clinical Laboratory, the First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, China
- Department of Clinical Laboratory, Anhui Public Health Clinical Center, Hefei, Anhui, China
| | - Nana Gao
- Department of Clinical Laboratory, the First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, China
- Department of Clinical Laboratory, Anhui Public Health Clinical Center, Hefei, Anhui, China
| | - Ge Li
- Department of Clinical Laboratory, the First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, China
- Department of Clinical Laboratory, Anhui Public Health Clinical Center, Hefei, Anhui, China
| | - Runde Liu
- Department of Clinical Laboratory, the First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, China
- Department of Clinical Laboratory, Anhui Public Health Clinical Center, Hefei, Anhui, China
| | - Guoping Lu
- Anhui Medical University Affiliated Fuyang Hospital, Fuyang, 236000, Anhui, China
| | - Jilu Shen
- Department of Clinical Laboratory, the First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, China.
- Department of Clinical Laboratory, Anhui Public Health Clinical Center, Hefei, Anhui, China.
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Novelli M, Bolla JM. RND Efflux Pump Induction: A Crucial Network Unveiling Adaptive Antibiotic Resistance Mechanisms of Gram-Negative Bacteria. Antibiotics (Basel) 2024; 13:501. [PMID: 38927168 PMCID: PMC11200565 DOI: 10.3390/antibiotics13060501] [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: 04/26/2024] [Revised: 05/22/2024] [Accepted: 05/27/2024] [Indexed: 06/28/2024] Open
Abstract
The rise of multi-drug-resistant (MDR) pathogenic bacteria presents a grave challenge to global public health, with antimicrobial resistance ranking as the third leading cause of mortality worldwide. Understanding the mechanisms underlying antibiotic resistance is crucial for developing effective treatments. Efflux pumps, particularly those of the resistance-nodulation-cell division (RND) superfamily, play a significant role in expelling molecules from bacterial cells, contributing to the emergence of multi-drug resistance. These are transmembrane transporters naturally produced by Gram-negative bacteria. This review provides comprehensive insights into the modulation of RND efflux pump expression in bacterial pathogens by numerous and common molecules (bile, biocides, pharmaceuticals, additives, plant extracts, etc.). The interplay between these molecules and efflux pump regulators underscores the complexity of antibiotic resistance mechanisms. The clinical implications of efflux pump induction by non-antibiotic compounds highlight the challenges posed to public health and the urgent need for further investigation. By addressing antibiotic resistance from multiple angles, we can mitigate its impact and preserve the efficacy of antimicrobial therapies.
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Affiliation(s)
- Marine Novelli
- Aix Marseille Univ, INSERM, SSA, MCT, 13385 Marseille, France;
- Université Paris Cité, CNRS, Biochimie des Protéines Membranaires, F-75005 Paris, France
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Chen H, Xu H, Liu R, Shen J, Zheng B, Li L. Coexistence of bla IMP-4 and bla SFO-1 in an IncHI5B plasmid harbored by tigecycline-non-susceptible Klebsiella variicola strain. Ann Clin Microbiol Antimicrob 2024; 23:24. [PMID: 38448920 PMCID: PMC10918965 DOI: 10.1186/s12941-024-00680-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2023] [Accepted: 02/19/2024] [Indexed: 03/08/2024] Open
Abstract
BACKGROUND Klebsiella variicola is considered a newly emerging human pathogen. Clinical isolates of carbapenemase and broad-spectrum β-lactamase-producing K. variicola remain relatively uncommon. A strain of K. variicola 4253 was isolated from a clinical sample, and was identified to carry the blaIMP-4 and blaSFO-1 genes. This study aims to discern its antibiotic resistance phenotype and genomic characteristics. METHODS Species identification was conducted using MALDI-TOF/MS. PCR identification confirmed the presence of the blaIMP-4 and blaSFO-1 genes. Antibiotic resistance phenotype and genomic characteristics were detected by antimicrobial susceptibility testing and whole-genome sequencing. Plasmid characterization was carried out through S1-PFGE, conjugation experiments, Southern blot, and comparative genomic analysis. RESULTS K. variicola 4253 belonged to ST347, and demonstrated resistance to broad-spectrum β-lactamase drugs and tigecycline while being insensitive to imipenem and meropenem. The blaIMP-4 and blaSFO-1 genes harbored on the plasmid p4253-imp. The replicon type of p4253-imp was identified as IncHI5B, representing a multidrug-resistant plasmid capable of horizontal transfer and mediating the dissemination of drug resistance. The blaIMP-4 gene was located on the In809-like integrative element (Intl1-blaIMP-4-aacA4-catB3), which circulates in Acinetobacter and Enterobacteriaceae. CONCLUSIONS This study reports the presence of a strain of K. variicola, which is insensitive to tigecycline, carrying a plasmid harboring blaIMP-4 and blaSFO-1. It is highly likely that the strain acquired this plasmid through horizontal transfer. The blaIMP-4 array (Intl1-blaIMP-4-aacA4-catB3) is also mobile in Acinetobacter and Enterobacteriaceae. So it is essential to enhance clinical awareness and conduct epidemiological surveillance on multidrug-resistant K. variicola, conjugative plasmids carrying blaIMP-4, and the In809 integrative element.
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Affiliation(s)
- Hui Chen
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, National Medical Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, Zhejiang University School of Medicine, 79 Qingchun Rd, Hangzhou City, 310003, China
| | - Hao Xu
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, National Medical Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, Zhejiang University School of Medicine, 79 Qingchun Rd, Hangzhou City, 310003, China
| | - Ruishan Liu
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, National Medical Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, Zhejiang University School of Medicine, 79 Qingchun Rd, Hangzhou City, 310003, China
| | - Jian Shen
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, National Medical Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, Zhejiang University School of Medicine, 79 Qingchun Rd, Hangzhou City, 310003, China
| | - Beiwen Zheng
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, National Medical Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, Zhejiang University School of Medicine, 79 Qingchun Rd, Hangzhou City, 310003, China.
| | - Lanjuan Li
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, National Medical Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, Zhejiang University School of Medicine, 79 Qingchun Rd, Hangzhou City, 310003, China.
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6
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Chukwu KB, Abafe OA, Amoako DG, Essack SY, Abia ALK. Environmental concentrations of antibiotics, biocides, and heavy metals fail to induce phenotypic antimicrobial resistance in Escherichia coli. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 899:165721. [PMID: 37482346 DOI: 10.1016/j.scitotenv.2023.165721] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/14/2023] [Revised: 07/19/2023] [Accepted: 07/20/2023] [Indexed: 07/25/2023]
Abstract
Most anthropogenically affected environments contain mixtures of pollutants from different sources. The impact of these pollutants is usually the combined effect of the individual polluting constituents. However, how these stressors contribute to the development of antimicrobial resistance in environmental microorganisms is poorly understood. Thus, a 30-day exposure experiment to environmental and sub-inhibitory concentrations of oxytetracycline, amoxicillin, zinc, copper, BAC (benzalkonium chloride) 10 and DADMAC (diallyldimethylammonium chloride) 12, was conducted using fully susceptible E. coli ATCC 25922 to ascertain any development of phenotypic or genotypic resistance. Furthermore, wild-type isolates were collected from the same aquatic environment as the stressors, analysed for phenotypic resistance using the disk diffusion method and genotypically through whole genome sequencing. Exposure to the various concentrations and combinations of the stressors did not trigger phenotypic resistance in the experimental bacteria. Furthermore, genotypic analysis of the WGS on the exposed isolates only found the macrolide resistance mdf(A) gene (also present in the control strain) and the disinfectant resistance gene sitABCD. With further analysis for single nucleotide variants (SNV), mutations were detected for 19 genes that encoded for oxidative stress, DNA repair, membrane proteins efflux systems, growth and persister formations except for the robA, a transcription protein subset of the ArcC/XylS family of proteins, which confer multidrug resistance in E. coli. This indicates that exposure to sub-inhibitory concentrations of antibiotics, heavy metals and biocide residues in the aquatic environmental concentrations of the stressors identified in the current study could not induce phenotypic or genotypic resistance but encoded for genes responsible for the development of persistence and tolerance in bacteria, which could be a precursor to the development of resistance in environmental bacteria.
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Affiliation(s)
- Kelechi B Chukwu
- Antimicrobial Research Unit, College of Health Sciences, University of KwaZulu-Natal, Durban, South Africa
| | - Ovokeroye A Abafe
- Antimicrobial Research Unit, College of Health Sciences, University of KwaZulu-Natal, Durban, South Africa; School of Geography, Earth and Environmental Sciences, University of Birmingham, Birmingham B15 2TT, United Kingdom; Residue Laboratory, Agricultural Research Council - Onderstepoort Veterinary Research Campus, Onderstepoort 0110, South Africa
| | - Daniel G Amoako
- Antimicrobial Research Unit, College of Health Sciences, University of KwaZulu-Natal, Durban, South Africa; Department of Integrative Biology and Bioinformatics, University of Guelph, Ontario N1G 2W1, Canada
| | - Sabiha Y Essack
- Antimicrobial Research Unit, College of Health Sciences, University of KwaZulu-Natal, Durban, South Africa.
| | - Akebe L K Abia
- Antimicrobial Research Unit, College of Health Sciences, University of KwaZulu-Natal, Durban, South Africa; Environmental Research Foundation, Westville 3630, Kwazulu-Natal, South Africa.
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Chetri S. The culmination of multidrug-resistant efflux pumps vs. meager antibiotic arsenal era: Urgent need for an improved new generation of EPIs. Front Microbiol 2023; 14:1149418. [PMID: 37138605 PMCID: PMC10149990 DOI: 10.3389/fmicb.2023.1149418] [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: 01/21/2023] [Accepted: 03/13/2023] [Indexed: 05/05/2023] Open
Abstract
Efflux pumps function as an advanced defense system against antimicrobials by reducing the concentration of drugs inside the bacteria and extruding the substances outside. Various extraneous substances, including antimicrobials, toxic heavy metals, dyes, and detergents, have been removed by this protective barrier composed of diverse transporter proteins found in between the cell membrane and the periplasm within the bacterial cell. In this review, multiple efflux pump families have been analytically and widely outlined, and their potential applications have been discussed in detail. Additionally, this review also discusses a variety of biological functions of efflux pumps, including their role in the formation of biofilms, quorum sensing, their survivability, and the virulence in bacteria, and the genes/proteins associated with efflux pumps have also been explored for their potential relevance to antimicrobial resistance and antibiotic residue detection. A final discussion centers around efflux pump inhibitors, particularly those derived from plants.
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Ngbede EO, Adekanmbi F, Poudel A, Kalalah A, Kelly P, Yang Y, Adamu AM, Daniel ST, Adikwu AA, Akwuobu CA, Abba PO, Mamfe LM, Maurice NA, Adah MI, Lockyear O, Butaye P, Wang C. Concurrent Resistance to Carbapenem and Colistin Among Enterobacteriaceae Recovered From Human and Animal Sources in Nigeria Is Associated With Multiple Genetic Mechanisms. Front Microbiol 2021; 12:740348. [PMID: 34690985 PMCID: PMC8528161 DOI: 10.3389/fmicb.2021.740348] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2021] [Accepted: 09/09/2021] [Indexed: 01/01/2023] Open
Abstract
Resistance to last resort drugs such as carbapenem and colistin is a serious global health threat. This study investigated carbapenem and colistin resistance in 583 non-duplicate Enterobacteriaceae isolates utilizing phenotypic methods and whole genome sequencing (WGS). Of the 583 isolates recovered from humans, animals and the environment in Nigeria, 18.9% (110/583) were resistant to at least one carbapenem (meropenem, ertapenem, and imipenem) and 9.1% (53/583) exhibited concurrent carbapenem-colistin resistance. The minimum inhibitory concentrations of carbapenem and colistin were 2–32 μg/mL and 8 to >64 μg/mL, respectively. No carbapenem resistant isolates produced carbapenemase nor harbored any known carbapenemase producing genes. WGS supported that concurrent carbapenem-colistin resistance was mediated by novel and previously described alterations in chromosomal efflux regulatory genes, particularly mgrB (M1V) ompC (M1_V24del) ompK37 (I70M, I128M) ramR (M1V), and marR (M1V). In addition, alterations/mutations were detected in the etpA, arnT, ccrB, pmrB in colistin resistant bacteria and ompK36 in carbapenem resistant bacteria. The bacterial isolates were distributed into 37 sequence types and characterized by the presence of internationally recognized high-risk clones. The results indicate that humans and animals in Nigeria may serve as reservoirs and vehicles for the global spread of the isolates. Further studies on antimicrobial resistance in African countries are warranted.
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Affiliation(s)
- Emmanuel O Ngbede
- Department of Veterinary Microbiology, College of Veterinary Medicine, Federal University of Agriculture Makurdi, Makurdi, Nigeria
| | - Folasade Adekanmbi
- Department of Pathobiology, Auburn University College of Veterinary Medicine, Auburn, AL, United States
| | - Anil Poudel
- Department of Pathobiology, Auburn University College of Veterinary Medicine, Auburn, AL, United States
| | - Anwar Kalalah
- Department of Pathobiology, Auburn University College of Veterinary Medicine, Auburn, AL, United States
| | - Patrick Kelly
- Department of Biomedical Sciences, Ross University School of Veterinary Medicine, Basseterre, Saint Kitts and Nevis
| | - Yi Yang
- Yangzhou University College of Veterinary Medicine, Yangzhou, China
| | - Andrew M Adamu
- Department of Veterinary Public Health and Preventive Medicine, Faculty of Veterinary Medicine, University of Abuja, Abuja, Nigeria
| | - Salem T Daniel
- Department of Microbiology, College of Sciences, Federal University of Agriculture Makurdi, Makurdi, Nigeria
| | - Alex A Adikwu
- Department of Veterinary Public Health and Preventive Medicine, College of Veterinary Medicine, Federal University of Agriculture Makurdi, Makurdi, Nigeria
| | - Chinedu A Akwuobu
- Department of Veterinary Microbiology, College of Veterinary Medicine, Federal University of Agriculture Makurdi, Makurdi, Nigeria
| | - Paul O Abba
- Department of Medical Microbiology and Parasitology, Benue State University Teaching Hospital, Makurdi, Nigeria
| | - Levi M Mamfe
- Department of Veterinary Microbiology, College of Veterinary Medicine, Federal University of Agriculture Makurdi, Makurdi, Nigeria
| | - Nanven A Maurice
- Department of Diagnostics and Extension, National Veterinary Research Institute, Vom, Nigeria
| | - Mohammed I Adah
- Department of Veterinary Medicine, College of Veterinary Medicine, Federal University of Agriculture Makurdi, Makurdi, Nigeria
| | - Olivia Lockyear
- Department of Pathobiology, Auburn University College of Veterinary Medicine, Auburn, AL, United States
| | - Patrick Butaye
- Department of Biomedical Sciences, Ross University School of Veterinary Medicine, Basseterre, Saint Kitts and Nevis.,Department of Pathology, Bacteriology and Avian Diseases, Faculty of Veterinary Medicine, Ghent University, Merelbeke, Belgium
| | - Chengming Wang
- Department of Pathobiology, Auburn University College of Veterinary Medicine, Auburn, AL, United States
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Al Mana H, Sundararaju S, Tsui CKM, Perez-Lopez A, Yassine H, Al Thani A, Al-Ansari K, Eltai NO. Whole-Genome Sequencing for Molecular Characterization of Carbapenem-Resistant Enterobacteriaceae Causing Lower Urinary Tract Infection among Pediatric Patients. Antibiotics (Basel) 2021; 10:antibiotics10080972. [PMID: 34439022 PMCID: PMC8388976 DOI: 10.3390/antibiotics10080972] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2021] [Revised: 08/02/2021] [Accepted: 08/05/2021] [Indexed: 01/08/2023] Open
Abstract
Antibiotic resistance is a growing public health problem globally, incurring health and cost burdens. The occurrence of antibiotic-resistant bacterial infections has increased significantly over the years. Gram-negative bacteria display the broadest resistance range, with bacterial species expressing extended-spectrum β-lactamases (ESBLs), AmpC, and carbapenemases. All carbapenem-resistant Enterobacteriaceae (CRE) isolates from pediatric urinary tract infections (UTIs) between October 2015 and November 2019 (n = 30). All isolates underwent antimicrobial resistance phenotypic testing using the Phoenix NMIC/ID-5 panel, and carbapenemase production was confirmed using the NG-Test CARBA 5 assay. Whole-genome sequencing was performed on the CREs. The sequence type was identified using the Achtman multi-locus sequence typing scheme, and antimicrobial resistance markers were identified using ResFinder and the CARD database. The most common pathogens causing CRE UTIs were E. coli (63.3%) and K. pneumoniae (30%). The most common carbapenemases produced were OXA-48-like enzymes (46.6%) and NDM enzymes (40%). Additionally, one E. coli harbored IMP-26, and two K. pneumoniae possessed mutations in ompK37 and/or ompK36. Lastly, one E. coli had a mutation in the marA porin and efflux pump regulator. The findings highlight the difference in CRE epidemiology in the pediatric population compared to Qatar's adult population, where NDM carbapenemases are more common.
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Affiliation(s)
- Hassan Al Mana
- Biomedical Research Center, Qatar University, Doha 2713, Qatar; (H.A.M.); (H.Y.); (A.A.T.)
| | - Sathyavathi Sundararaju
- Division of Microbiology, Department of Pathology Sidra Medicine, Doha 2713, Qatar; (S.S.); (C.K.M.T.); (A.P.-L.)
| | - Clement K. M. Tsui
- Division of Microbiology, Department of Pathology Sidra Medicine, Doha 2713, Qatar; (S.S.); (C.K.M.T.); (A.P.-L.)
- Department of Pathology and Laboratory Medicine, Weill Cornell Medical College in Qatar, Doha 2713, Qatar;
- Division of Infectious Diseases, Faculty of Medicine, University of British Columbia, Vancouver, BC V6T 1Z4, Canada
| | - Andres Perez-Lopez
- Division of Microbiology, Department of Pathology Sidra Medicine, Doha 2713, Qatar; (S.S.); (C.K.M.T.); (A.P.-L.)
- Department of Pathology and Laboratory Medicine, Weill Cornell Medical College in Qatar, Doha 2713, Qatar;
| | - Hadi Yassine
- Biomedical Research Center, Qatar University, Doha 2713, Qatar; (H.A.M.); (H.Y.); (A.A.T.)
- Department of Biomedical Science, College of Health Sciences, QU Health, Qatar University, Doha 2713, Qatar
| | - Asmaa Al Thani
- Biomedical Research Center, Qatar University, Doha 2713, Qatar; (H.A.M.); (H.Y.); (A.A.T.)
| | - Khalid Al-Ansari
- Department of Pathology and Laboratory Medicine, Weill Cornell Medical College in Qatar, Doha 2713, Qatar;
- Department of Emergency, Sidra Medicine, Doha 2713, Qatar
| | - Nahla O. Eltai
- Biomedical Research Center, Qatar University, Doha 2713, Qatar; (H.A.M.); (H.Y.); (A.A.T.)
- Correspondence:
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Hosseinkhan N, Allahverdi A, Abdolmaleki F. The novel potential multidrug-resistance biomarkers for Pseudomonas aeruginosa lung infections using transcriptomics data analysis. INFORMATICS IN MEDICINE UNLOCKED 2021. [DOI: 10.1016/j.imu.2020.100509] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
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Ferrand A, Vergalli J, Pagès JM, Davin-Regli A. An Intertwined Network of Regulation Controls Membrane Permeability Including Drug Influx and Efflux in Enterobacteriaceae. Microorganisms 2020; 8:E833. [PMID: 32492979 PMCID: PMC7355843 DOI: 10.3390/microorganisms8060833] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2020] [Revised: 05/29/2020] [Accepted: 05/31/2020] [Indexed: 12/19/2022] Open
Abstract
The transport of small molecules across membranes is a pivotal step for controlling the drug concentration into the bacterial cell and it efficiently contributes to the antibiotic susceptibility in Enterobacteriaceae. Two types of membrane transports, passive and active, usually represented by porins and efflux pumps, are involved in this process. Importantly, the expression of these transporters and channels are modulated by an armamentarium of tangled regulatory systems. Among them, Helix-turn-Helix (HTH) family regulators (including the AraC/XylS family) and the two-component systems (TCS) play a key role in bacterial adaptation to environmental stresses and can manage a decrease of porin expression associated with an increase of efflux transporters expression. In the present review, we highlight some recent genetic and functional studies that have substantially contributed to our better understanding of the sophisticated mechanisms controlling the transport of small solutes (antibiotics) across the membrane of Enterobacteriaceae. This information is discussed, taking into account the worrying context of clinical antibiotic resistance and fitness of bacterial pathogens. The localization and relevance of mutations identified in the respective regulation cascades in clinical resistant strains are discussed. The possible way to bypass the membrane/transport barriers is described in the perspective of developing new therapeutic targets to combat bacterial resistance.
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Affiliation(s)
| | | | | | - Anne Davin-Regli
- UMR_MD1, U-1261, Aix-Marseille University, INSERM, SSA, IRBA, MCT, Faculté de Pharmacie, 27 Bd Jean Moulin, 13385 Marseille CEDEX 05, France; (A.F.); (J.V.); (J.-M.P.)
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