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Krüger D, Matshwele JTP, Mukhtar MD, Baecker D. Insights into the Versatility of Using Atomic Absorption Spectrometry in Antibacterial Research. Molecules 2024; 29:3120. [PMID: 38999072 PMCID: PMC11243102 DOI: 10.3390/molecules29133120] [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: 06/14/2024] [Accepted: 06/28/2024] [Indexed: 07/14/2024] Open
Abstract
The ongoing development of bacterial resistance to antibiotics is a global challenge. Research in that field is thus necessary. Analytical techniques are required for such a purpose. From this perspective, the focus was on atomic absorption spectrometry (AAS). Although it is old, AAS often offers unexpected potential. Of course, this should be exploited. The aim was therefore to demonstrate the versatility of the technique in antibacterial research. This is illustrated by various examples of its practical application. AAS can be used, for example, to confirm the identity of antibacterial compounds, for purity controls, or to quantify the antibiotics in pharmaceutical preparations. The latter allowed analysis without laborious sample preparation and without interference from other excipients. In addition, AAS can help elucidate the mode of action or resistance mechanisms. In this context, quantifying the accumulation of the antibiotic drug in the cell of (resistant) bacteria appears to play an important role. The general application of AAS is not limited to metal-containing drugs, but also enables the determination of some organic chemical antibiotics. Altogether, this perspective presents a range of applications for AAS in antibacterial research, intending to raise awareness of the method and may thus contribute to the fight against resistance.
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Affiliation(s)
- David Krüger
- Department of Pharmaceutical Biology, Institute of Pharmacy, Freie Universität Berlin, Königin-Luise-Straße 2+4, 14195 Berlin, Germany
| | - James T P Matshwele
- Department of Chemistry, Faculty of Science, University of Botswana, Private Bag 0704, Gaborone, Botswana
| | - Muhammad Dauda Mukhtar
- Department of Pharmaceutical Microbiology and Biotechnology, Faculty of Pharmaceutical Sciences, Bayero University Kano, Gwarzo Road, Kano PMB 3011, Nigeria
| | - Daniel Baecker
- Department of Pharmaceutical and Medicinal Chemistry, Institute of Pharmacy, Freie Universität Berlin, Königin-Luise-Straße 2+4, 14195 Berlin, Germany
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2
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Davoodi NR, Soleimani N, Hosseini SM, Rahnamaye-Farzami M. Molecular characterization and epidemiological investigation of colistin resistance in carbapenem-resistant Klebsiella pneumoniae in a tertiary care hospital in Tehran, Iran. BMC Microbiol 2024; 24:230. [PMID: 38943054 PMCID: PMC11212209 DOI: 10.1186/s12866-024-03376-4] [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: 09/12/2023] [Accepted: 06/17/2024] [Indexed: 07/01/2024] Open
Abstract
BACKGROUND Carbapenemase-producing Klebsiella pneumoniae (CRKP) presents a significant challenge to antimicrobial therapy, especially when compounded by resistance to colistin. The objective of this study was to explore molecular epidemiological insights into strains of clinical K. pneumoniae that produce carbapenemases and exhibit resistance to colistin. Eighty clinical isolates of CRKP were obtained from Milad Hospital in Tehran, Iran. Antimicrobial susceptibility and colistin broth disk elution were determined. PCR assays were conducted to examine the prevalence of resistance-associated genes, including blaKPC, blaIMP, blaVIM, blaOXA-48, blaNDM and mcr-1 to -10. Molecular typing (PFGE) was used to assess their spread. RESULTS Colistin resistance was observed in 27 isolates (33.7%) using the Broth Disk Elution method. Among positive isolates for carbapenemase genes, the most frequent gene was blaOXA-48, identified in 36 strains (45%). The mcr-1 gene was detected in 3.7% of the obtained isolates, with none of the other of the other mcr genes detected in the studied isolates. CONCLUSION To stop the spread of resistant K. pneumoniae and prevent the evolution of mcr genes, it is imperative to enhance surveillance, adhere rigorously to infection prevention protocols, and implement antibiotic stewardship practices.
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Affiliation(s)
- Neda Razavi Davoodi
- Department of Microbiology and Microbial Biotechnology, Faculty of Life Sciences and Biotechnology, Shahid Beheshti University, Tehran, Iran
| | - Neda Soleimani
- Department of Microbiology and Microbial Biotechnology, Faculty of Life Sciences and Biotechnology, Shahid Beheshti University, Tehran, Iran
| | - Seyed Masoud Hosseini
- Department of Microbiology and Microbial Biotechnology, Faculty of Life Sciences and Biotechnology, Shahid Beheshti University, Tehran, Iran
| | - Marjan Rahnamaye-Farzami
- Department of Microbiology, Research Center of Health Reference Laboratory, Ministry of Health and Medical Education, Tehran, Iran.
- Department of Microbiology, Reference Health Laboratory Research Center, Ministry of Health and Medical Education, Tehran, Iran.
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Chou SH, Chuang C, Juan CH, Ho YC, Liu SY, Chen L, Lin YT. Mechanisms and fitness of ceftazidime/avibactam-resistant Klebsiella pneumoniae clinical strains in Taiwan. Int J Antimicrob Agents 2024; 64:107244. [PMID: 38925227 DOI: 10.1016/j.ijantimicag.2024.107244] [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: 04/03/2024] [Revised: 06/03/2024] [Accepted: 06/13/2024] [Indexed: 06/28/2024]
Abstract
BACKGROUND Carbapenem-resistant Klebsiella pneumoniae (CRKP) infection is a global public health issue, and ceftazidime/avibactam is recommended by international guidelines as the preferred treatment for KPC- and OXA-48-producing CRKP. Since its introduction in Taiwan in 2019, ceftazidime/avibactam-resistant strains have emerged. Our aim is to investigate the mechanisms of ceftazidime/avibactam resistance in CRKP in Taiwan and study their associated fitness costs. METHODS Ceftazidime/avibactam-resistant CRKP strains with exposure to ceftazidime/avibactam isolated from clinical specimens were consecutively collected at Taipei Veterans General Hospital in 2020. The serial strains exhibiting ceftazidime/avibactam-susceptible and ceftazidime/avibactam-resistant phenotypes isolated from the same patient were characterized using whole-genome sequencing and tested for their growth rates and competitive abilities. RESULTS A total of 35 ceftazidime/avibactam-resistant CRKP strains were identified, with 20 being metallo-β-lactamase producers. Ten strains harboured KPC variants, exhibiting MIC for ceftazidime/avibactam ranging from 64 to ≥256 mg/L. The 10 strains demonstrating high-level ceftazidime/avibactam resistance possessed mutated KPC variants: KPC-33 (n = 3), KPC-31 (n = 1), KPC-39 (n = 1), KPC-44 (n = 1), KPC-58 (n = 1), KPC-90 (n = 1), and two novel KPC variants. Ceftazidime/avibactam-resistant strains with KPC-33 and KPC-39 showed a significant fitness cost and lower growth rate compared to their parental strains. In contrast, ceftazidime/avibactam-resistant strains with KPC-58 and KPC-58 plus D179Y showed similar growth rates and competitive abilities compared to their parental strains. CONCLUSIONS Mutated KPC variants conferred high-level ceftazidime/avibactam resistance in Taiwan. Significant fitness costs were observed in both the ceftazidime/avibactam-resistant KPC-33 and KPC-39 strains. Despite conferring a similar level of ceftazidime/avibactam resistance, different KPC variants could entail varying degrees of fitness costs.
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Affiliation(s)
- Sheng-Hua Chou
- Division of Infectious Diseases, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan; Institute of Emergency and Critical Care Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan
| | - Chien Chuang
- Division of Infectious Diseases, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan; Institute of Emergency and Critical Care Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan; School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan
| | - Chih-Han Juan
- Division of Infectious Diseases, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan; Institute of Emergency and Critical Care Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan; School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan
| | - Yu-Chien Ho
- Division of Infectious Diseases, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Szu-Yu Liu
- Division of Infectious Diseases, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Liang Chen
- Department of Pharmacy Practice, School of Pharmacy and Pharmaceutical Sciences, University at Buffalo, Buffalo, NY
| | - Yi-Tsung Lin
- Division of Infectious Diseases, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan; Institute of Emergency and Critical Care Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan; School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan.
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Zhang X, Jiang Y, Guo Y, Zhou W, Qiao W, Zhu H, Qi Z. Safety evaluation of ceftazidime/avibactam based on FAERS database. Infection 2024:10.1007/s15010-024-02248-3. [PMID: 38842750 DOI: 10.1007/s15010-024-02248-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2023] [Accepted: 03/25/2024] [Indexed: 06/07/2024]
Abstract
OBJECTIVE To explore adverse event (AE) signals of Ceftazidime/avibactam (CZA) based on the FDA Adverse Event Reporting System (FAERS) database. METHODS AE reports primarily associated with CZA were retrieved from the FAERS database from the second quarter of 2015 to the second quarter of 2023. Signal detection was conducted using the reporting odds ratio (ROR), proportional reporting ratio (PRR), Bayesian Confidence Propagation Neural Network (BCPNN), and Multi-item Gamma Poisson Shrinker (MGPS) methods. RESULTS A total of 750 AEs reports with CZA as the preferred suspected drug were obtained, identifying 66 preferred terms (PTs) involving 24 system organ classes (SOCs). Besides, the AEs already mentioned in the drug label, this study also revealed some new, clinically valuable potential AEsignals, such as Cholestasis (n = 14, ROR 29.39, PRR 29.15, IC 3.34, EBGM 29.11), Drug-induced liver injury (n = 8, ROR 9.05, PRR 9.01, IC 2.25, EBGM 9.01), Hepatocellular injury (n = 7, ROR 13.90, PRR 13.84, IC 2.41, EBGM 13.63), Haemolytic anaemia (n = 5, ROR 24.29, PRR 24.22, IC 2.42, EBGM 40.53), etc. Additionally, AE signals with higher intensity were identified, such as Hypernatraemia (n = 5, ROR 40.73, PRR 40.61, IC 2.31, EBGM 24.19), Toxic epidermal necrolysis (n = 4, ROR 11.58, PRR 11.55, IC 1.89, EBGM 11.54). Therefore, special vigilance for these potential AEs is warranted when using CZA clinically. CONCLUSION This study highlights the potential AEs and risks associated with the clinical use of CZA, particularly the risks related to Cholestasis, Drug-induced liver injury, Haemolytic anaemia, Hypernatraemia, and Toxic epidermal necrolysis.
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Affiliation(s)
- Xiuhong Zhang
- Department of Pharmacy, The Affiliated Wuxi People's Hospital of Nanjing Medical University, Wuxi Medical Center, Nanjing Medical University, Wuxi, Jiangsu, China
| | - Ying Jiang
- Mental Health Center of Jiangnan University, Wuxi Central Rehabilitation Hospital, Wuxi, Jiangsu, China
| | - Yating Guo
- Department of Laboratory Medicine, The Affiliated Wuxi People's Hospital of Nanjing Medical University, Wuxi People's Hospital, Wuxi Medical Center, Nanjing Medical University, Wuxi, China
| | - Wenbo Zhou
- Department of Pharmacy, The Affiliated Wuxi People's Hospital of Nanjing Medical University, Wuxi Medical Center, Nanjing Medical University, Wuxi, Jiangsu, China
| | - Weizhen Qiao
- Department of Laboratory Medicine, The Affiliated Wuxi People's Hospital of Nanjing Medical University, Wuxi People's Hospital, Wuxi Medical Center, Nanjing Medical University, Wuxi, China
| | - Haohao Zhu
- Mental Health Center of Jiangnan University, Wuxi Central Rehabilitation Hospital, Wuxi, Jiangsu, China.
| | - Zhigang Qi
- Department of Pharmacy, The Affiliated Wuxi People's Hospital of Nanjing Medical University, Wuxi Medical Center, Nanjing Medical University, Wuxi, Jiangsu, China
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Doğan E, Sydow K, Heiden SE, Eger E, Wassilew G, Proctor RA, Bohnert JA, Idelevich EA, Schaufler K, Becker K. Klebsiella pneumoniae exhibiting a phenotypic hyper-splitting phenomenon including the formation of small colony variants. Front Cell Infect Microbiol 2024; 14:1372704. [PMID: 38601740 PMCID: PMC11004228 DOI: 10.3389/fcimb.2024.1372704] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2024] [Accepted: 03/07/2024] [Indexed: 04/12/2024] Open
Abstract
In this study, we characterized a Klebsiella pneumoniae strain in a patient with shrapnel hip injury, which resulted in multiple phenotypic changes, including the formation of a small colony variant (SCV) phenotype. Although already described since the 1960s, there is little knowledge about SCV phenotypes in Enterobacteriaceae. The formation of SCVs has been recognized as a bacterial strategy to evade host immune responses and compromise the efficacy of antimicrobial therapies, leading to persistent and recurrent courses of infections. In this case, 14 isolates with different resisto- and morpho-types were distinguished from the patient's urine and tissue samples. Whole genome sequencing revealed that all isolates were clonally identical belonging to the K. pneumoniae high-risk sequence type 147. Subculturing the SCV colonies consistently resulted in the reappearance of the initial SCV phenotype and three stable normal-sized phenotypes with distinct morphological characteristics. Additionally, an increase in resistance was observed over time in isolates that shared the same colony appearance. Our findings highlight the complexity of bacterial behavior by revealing a case of phenotypic "hyper-splitting" in a K. pneumoniae SCV and its potential clinical significance.
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Affiliation(s)
- Eyüp Doğan
- Friedrich Loeffler-Institute of Medical Microbiology, University Medicine Greifswald, Greifswald, Germany
| | - Katharina Sydow
- Department of Epidemiology and Ecology of Antimicrobial Resistance, Helmholtz Institute for One Health, Helmholtz Centre for Infection Research Helmholtz Center for Infection Research (HZI), Greifswald, Germany
| | - Stefan E. Heiden
- Department of Epidemiology and Ecology of Antimicrobial Resistance, Helmholtz Institute for One Health, Helmholtz Centre for Infection Research Helmholtz Center for Infection Research (HZI), Greifswald, Germany
| | - Elias Eger
- Department of Epidemiology and Ecology of Antimicrobial Resistance, Helmholtz Institute for One Health, Helmholtz Centre for Infection Research Helmholtz Center for Infection Research (HZI), Greifswald, Germany
| | - Georgi Wassilew
- Center for Orthopedics, Trauma Surgery and Rehabilitation Medicine, University Medicine Greifswald, Greifswald, Germany
| | - Richard A. Proctor
- Departments of Medical Microbiology/Immunology and Medicine, University of Wisconsin School of Medicine and Public Health, Madison, WI, United States
| | - Jürgen A. Bohnert
- Friedrich Loeffler-Institute of Medical Microbiology, University Medicine Greifswald, Greifswald, Germany
| | - Evgeny A. Idelevich
- Friedrich Loeffler-Institute of Medical Microbiology, University Medicine Greifswald, Greifswald, Germany
- Institute of Medical Microbiology, University Hospital Münster, Münster, Germany
| | - Katharina Schaufler
- Department of Epidemiology and Ecology of Antimicrobial Resistance, Helmholtz Institute for One Health, Helmholtz Centre for Infection Research Helmholtz Center for Infection Research (HZI), Greifswald, Germany
- University Medicine Greifswald, Greifswald, Germany
| | - Karsten Becker
- Friedrich Loeffler-Institute of Medical Microbiology, University Medicine Greifswald, Greifswald, Germany
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De los Santos L, Beckman RL, DeBarro C, Keener JE, Torres MD, de la Fuente-Nunez C, Brodbelt JS, Fleeman RM. Polyproline peptide targets Klebsiella pneumoniae polysaccharides to collapse biofilms. CELL REPORTS. PHYSICAL SCIENCE 2024; 5:101869. [PMID: 38605913 PMCID: PMC11008256 DOI: 10.1016/j.xcrp.2024.101869] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 04/13/2024]
Abstract
Hypervirulent Klebsiella pneumoniae is known for its increased extracellular polysaccharide production. Biofilm matrices of hypervirulent K. pneumoniae have increased polysaccharide abundance and are uniquely susceptible to disruption by peptide bactenecin 7 (bac7 (1-35)). Here, using confocal microscopy, we show that polysaccharides within the biofilm matrix collapse following bac7 (1-35) treatment. This collapse led to the release of cells from the biofilm, which were then killed by the peptide. Characterization of truncated peptide analogs revealed that their interactions with polysaccharide were responsible for the biofilm matrix changes that accompany bac7 (1-35) treatment. Ultraviolet photodissociation mass spectrometry with the parental peptide or a truncated analog bac7 (10-35) reveal the important regions for bac7 (1-35) complexing with polysaccharides. Finally, we tested bac7 (1-35) using a murine skin abscess model and observed a significant decrease in the bacterial burden. These findings unveil the potential of bac7 (1-35) polysaccharide interactions to collapse K. pneumoniae biofilms.
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Affiliation(s)
- Laura De los Santos
- Division of Immunity and Pathogenesis, Burnett School of Biomedical Sciences, College of Medicine, University of Central Florida, Orlando, FL 32827, USA
| | - Robert L. Beckman
- Division of Immunity and Pathogenesis, Burnett School of Biomedical Sciences, College of Medicine, University of Central Florida, Orlando, FL 32827, USA
| | - Christina DeBarro
- Division of Immunity and Pathogenesis, Burnett School of Biomedical Sciences, College of Medicine, University of Central Florida, Orlando, FL 32827, USA
| | - James E. Keener
- Department of Chemistry, The University of Texas at Austin, Austin, TX 78712, USA
| | - Marcelo D.T. Torres
- Machine Biology Group, Departments of Psychiatry and Microbiology, Institute for Biomedical Informatics, Institute for Translational Medicine and Therapeutics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
- Departments of Bioengineering and Chemical and Biomolecular Engineering, School of Engineering and Applied Science, University of Pennsylvania, Philadelphia, PA 19104, USA
- Department of Chemistry, School of Arts and Sciences, University of Pennsylvania, Philadelphia, PA, USA
- Penn Institute for Computational Science, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Cesar de la Fuente-Nunez
- Machine Biology Group, Departments of Psychiatry and Microbiology, Institute for Biomedical Informatics, Institute for Translational Medicine and Therapeutics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
- Departments of Bioengineering and Chemical and Biomolecular Engineering, School of Engineering and Applied Science, University of Pennsylvania, Philadelphia, PA 19104, USA
- Department of Chemistry, School of Arts and Sciences, University of Pennsylvania, Philadelphia, PA, USA
- Penn Institute for Computational Science, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Jennifer S. Brodbelt
- Department of Chemistry, The University of Texas at Austin, Austin, TX 78712, USA
| | - Renee M. Fleeman
- Division of Immunity and Pathogenesis, Burnett School of Biomedical Sciences, College of Medicine, University of Central Florida, Orlando, FL 32827, USA
- X (formerly Twitter): @FleemanLab
- Lead contact
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Schaufler K, Echelmeyer T, Schwabe M, Guenther S, Bohnert JA, Becker K, Fickenscher H, Bueter A, Maschkowitz G, Krumbholz A, Nurjadi D, Heiden SE, Eger E. Convergent Klebsiella pneumoniae strains belonging to a sequence type 307 outbreak clone combine cefiderocol and carbapenem resistance with hypervirulence. Emerg Microbes Infect 2023; 12:2271096. [PMID: 37842870 PMCID: PMC10619465 DOI: 10.1080/22221751.2023.2271096] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2023] [Accepted: 10/11/2023] [Indexed: 10/17/2023]
Affiliation(s)
- Katharina Schaufler
- Institute of Infection Medicine, Christian-Albrecht University Kiel and University Medical Center Schleswig-Holstein, Kiel, Germany
- Institute of Pharmacy, Pharmaceutical Microbiology, University of Greifswald, Greifswald, Germany
- Department of Epidemiology and Ecology of Antimicrobial Resistance, Helmholtz Institute for One Health, Helmholtz Centre for Infection Research HZI, Greifswald, Germany
- University Medicine Greifswald, Greifswald, Germany
| | - Thaddäus Echelmeyer
- Institute of Pharmacy, Pharmaceutical Microbiology, University of Greifswald, Greifswald, Germany
| | - Michael Schwabe
- Institute of Pharmacy, Pharmaceutical Microbiology, University of Greifswald, Greifswald, Germany
| | - Sebastian Guenther
- Institute of Pharmacy, Pharmaceutical Biology, University of Greifswald, Greifswald, Germany
| | - Jürgen A. Bohnert
- Friedrich Loeffler-Institute of Medical Microbiology, University Medicine Greifswald, Greifswald, Germany
| | - Karsten Becker
- Friedrich Loeffler-Institute of Medical Microbiology, University Medicine Greifswald, Greifswald, Germany
| | - Helmut Fickenscher
- Institute of Infection Medicine, Christian-Albrecht University Kiel and University Medical Center Schleswig-Holstein, Kiel, Germany
| | - Aike Bueter
- Institute of Infection Medicine, Christian-Albrecht University Kiel and University Medical Center Schleswig-Holstein, Kiel, Germany
| | - Gregor Maschkowitz
- Institute of Infection Medicine, Christian-Albrecht University Kiel and University Medical Center Schleswig-Holstein, Kiel, Germany
| | - Andi Krumbholz
- Institute of Infection Medicine, Christian-Albrecht University Kiel and University Medical Center Schleswig-Holstein, Kiel, Germany
- Labor Dr. Krause und Kollegen MVZ GmbH, Kiel, Germany
| | - Dennis Nurjadi
- Department of Infectious Diseases and Microbiology, University of Lübeck and University Medical Center Schleswig-Holstein, Lübeck, Germany
| | - Stefan E. Heiden
- Department of Epidemiology and Ecology of Antimicrobial Resistance, Helmholtz Institute for One Health, Helmholtz Centre for Infection Research HZI, Greifswald, Germany
| | - Elias Eger
- Institute of Infection Medicine, Christian-Albrecht University Kiel and University Medical Center Schleswig-Holstein, Kiel, Germany
- Department of Epidemiology and Ecology of Antimicrobial Resistance, Helmholtz Institute for One Health, Helmholtz Centre for Infection Research HZI, Greifswald, Germany
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Mukhtar MD, Rufa’i FA, Yola AU, Babba NI, Baecker D. Evaluating the Potency of Selected Antibiotic Medications Dispensed in Community Pharmacies in Gwale, Kano, Nigeria. Antibiotics (Basel) 2023; 12:1582. [PMID: 37998784 PMCID: PMC10668698 DOI: 10.3390/antibiotics12111582] [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: 09/22/2023] [Revised: 10/21/2023] [Accepted: 10/29/2023] [Indexed: 11/25/2023] Open
Abstract
The worsening of antibiotic resistance is a multifactorial process. One aspect of this is the counterfeiting of antibiotic medications. This is supposed to be particularly high in developing countries, including Nigeria. Therefore, the potency of some antibiotic drugs dispensed in community pharmacies in Gwale, Kano, Nigeria, was investigated in this case study. Three products, each from different manufacturers, with the active ingredients of ceftriaxone, gentamicin, ciprofloxacin, and metronidazole, respectively, were included in this study. By means of a disc-diffusion assay, the effect against the typed strains Staphylococcus aureus (ATCC 25923) and Escherichia coli (ATCC 25922) as well as Clostridium tetani isolated from soil was tested. Clinical isolates of S. aureus and E. coli were also used. While antibiotics, with the exception of ciprofloxacin-containing preparations against C. tetani, showed acceptable efficacy against the typed strains by comparison with the clinical science laboratory references, a predominant failure was observed with the clinical isolates. Thus, the investigated drug preparations can be considered of acceptable quality for the treatment of susceptible bacterial infections. This excludes counterfeits in the sampled preparations. However, the insufficient efficacy against clinical isolates further documents the severity of nosocomial bacteria.
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Affiliation(s)
- Muhammad Dauda Mukhtar
- Department of Pharmaceutical Microbiology and Biotechnology, Faculty of Pharmaceutical Sciences, Bayero University Kano, Gwarzo Road, Kano PMB 3011, Nigeria; (A.U.Y.); (N.I.B.)
| | - Fatihu Ahmad Rufa’i
- Kano Liaison Office, Nigerian Institute for Trypanosomiasis (and Onchocerciasis) Research, Surame Road, Kaduna PMB 2077, Nigeria;
| | - Abdurrahaman Umar Yola
- Department of Pharmaceutical Microbiology and Biotechnology, Faculty of Pharmaceutical Sciences, Bayero University Kano, Gwarzo Road, Kano PMB 3011, Nigeria; (A.U.Y.); (N.I.B.)
| | - Nafisa Ibrahim Babba
- Department of Pharmaceutical Microbiology and Biotechnology, Faculty of Pharmaceutical Sciences, Bayero University Kano, Gwarzo Road, Kano PMB 3011, Nigeria; (A.U.Y.); (N.I.B.)
| | - Daniel Baecker
- Department of Pharmaceutical and Medicinal Chemistry, Institute of Pharmacy, Freie Universität Berlin, Königin-Luise-Straße 2+4, 14195 Berlin, Germany
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9
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Shelenkov A, Mikhaylova Y, Voskanyan S, Egorova A, Akimkin V. Whole-Genome Sequencing Revealed the Fusion Plasmids Capable of Transmission and Acquisition of Both Antimicrobial Resistance and Hypervirulence Determinants in Multidrug-Resistant Klebsiella pneumoniae Isolates. Microorganisms 2023; 11:1314. [PMID: 37317293 DOI: 10.3390/microorganisms11051314] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2023] [Revised: 05/11/2023] [Accepted: 05/15/2023] [Indexed: 06/16/2023] Open
Abstract
Klebsiella pneumoniae, a member of the Enterobacteriaceae family, has become a dangerous pathogen accountable for a large fraction of the various infectious diseases in both clinical and community settings. In general, the K. pneumoniae population has been divided into the so-called classical (cKp) and hypervirulent (hvKp) lineages. The former, usually developing in hospitals, can rapidly acquire resistance to a wide spectrum of antimicrobial drugs, while the latter is associated with more aggressive but less resistant infections, mostly in healthy humans. However, a growing number of reports in the last decade have confirmed the convergence of these two distinct lineages into superpathogen clones possessing the properties of both, and thus imposing a significant threat to public health worldwide. This process is associated with horizontal gene transfer, in which plasmid conjugation plays a very important role. Therefore, the investigation of plasmid structures and the ways plasmids spread within and between bacterial species will provide benefits in developing prevention measures against these powerful pathogens. In this work, we investigated clinical multidrug-resistant K. pneumoniae isolates using long- and short-read whole-genome sequencing, which allowed us to reveal fusion IncHI1B/IncFIB plasmids in ST512 isolates capable of simultaneously carrying hypervirulence (iucABCD, iutA, prmpA, peg-344) and resistance determinants (armA, blaNDM-1 and others), and to obtain insights into their formation and transmission mechanisms. Comprehensive phenotypic, genotypic and phylogenetic analysis of the isolates, as well as of their plasmid repertoire, was performed. The data obtained will facilitate epidemiological surveillance of high-risk K. pneumoniae clones and the development of prevention strategies against them.
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Affiliation(s)
- Andrey Shelenkov
- Central Research Institute of Epidemiology, Novogireevskaya Str., 3a, 111123 Moscow, Russia
| | - Yulia Mikhaylova
- Central Research Institute of Epidemiology, Novogireevskaya Str., 3a, 111123 Moscow, Russia
| | - Shushanik Voskanyan
- Central Research Institute of Epidemiology, Novogireevskaya Str., 3a, 111123 Moscow, Russia
| | - Anna Egorova
- Central Research Institute of Epidemiology, Novogireevskaya Str., 3a, 111123 Moscow, Russia
| | - Vasiliy Akimkin
- Central Research Institute of Epidemiology, Novogireevskaya Str., 3a, 111123 Moscow, Russia
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Pereira JAM, Berenguer CV, Câmara JS. Delving into Agri-Food Waste Composition for Antibacterial Phytochemicals. Metabolites 2023; 13:metabo13050634. [PMID: 37233675 DOI: 10.3390/metabo13050634] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2023] [Revised: 04/20/2023] [Accepted: 05/06/2023] [Indexed: 05/27/2023] Open
Abstract
The overuse of antibiotics in the healthcare, veterinary, and agricultural industries has led to the development of antimicrobial resistance (AMR), resulting in significant economic losses worldwide and a growing healthcare problem that urgently needs to be solved. Plants produce a variety of secondary metabolites, making them an area of interest in the search for new phytochemicals to cope with AMR. A great part of agri-food waste is of plant origin, constituting a promising source of valuable compounds with different bioactivities, including those against antimicrobial resistance. Many types of phytochemicals, such as carotenoids, tocopherols, glucosinolates, and phenolic compounds, are widely present in plant by-products, such as citrus peels, tomato waste, and wine pomace. Unveiling these and other bioactive compounds is therefore very relevant and could be an important and sustainable form of agri-food waste valorisation, adding profit for local economies and mitigating the negative impact of these wastes' decomposition on the environment. This review will focus on the potential of agri-food waste from a plant origin as a source of phytochemicals with antibacterial activity for global health benefits against AMR.
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Affiliation(s)
- Jorge A M Pereira
- CQM-Centro de Química da Madeira, Campus da Penteada, Universidade da Madeira, 9020-105 Funchal, Portugal
| | - Cristina V Berenguer
- CQM-Centro de Química da Madeira, Campus da Penteada, Universidade da Madeira, 9020-105 Funchal, Portugal
| | - José S Câmara
- CQM-Centro de Química da Madeira, Campus da Penteada, Universidade da Madeira, 9020-105 Funchal, Portugal
- Departamento de Química, Faculdade de Ciências Exatas e da Engenharia, Campus da Penteada, Universidade da Madeira, 9020-105 Funchal, Portugal
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11
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Córdova-Espinoza MG, Giono-Cerezo S, Sierra-Atanacio EG, Escamilla-Gutiérrez A, Carrillo-Tapia E, Carrillo-Vázquez LI, Mendoza-Pérez F, Leyte-Lugo M, González-Vázquez R, Mayorga-Reyes L, González-Vázquez R. Isolation and Identification of Multidrug-Resistant Klebsiella pneumoniae Clones from the Hospital Environment. Pathogens 2023; 12:pathogens12050634. [PMID: 37242304 DOI: 10.3390/pathogens12050634] [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: 03/01/2023] [Revised: 04/09/2023] [Accepted: 04/20/2023] [Indexed: 05/28/2023] Open
Abstract
Global dispersion, hospital outbreaks, and lineage relationships between emerging antibiotic-resistant strains such as Klebsiella pneumoniae are of public health interest. This study aimed to isolate and identify K. pneumoniae clones from third-level healthcare hospitals in Mexico to establish their multidrug-resistant phenotype, phylogeny, and prevalence. Biological and abiotic surface samples were used to isolate K. pneumoniae strains and to test their antibiotic susceptibility to classify them. The housekeeping genes: gapA, InfB, mdh, pgi, phoE, ropB, and tonB were used for multilocus sequence typing (MLST). Phylogenetic networks were constructed with 48 strains. Isolated strains (93) were mainly from urine and blood, 96% were resistant to ampicillin as expected, 60% were extended-spectrum β-lactamases (ESBL), 98% were susceptible to ertapenem and meropenem and 99% were susceptible to imipenem, 46% were multi-drug resistant (MDR), 17% were extensively-drug resistant (XDR), 1% were pan-drug resistant (PDR), and 36% were not classified. The tonB, mdh, and phoE genes were the most variable, and the InfB gene showed positive selection. The most prevalent sequence types (STs) were ST551 (six clones), ST405 (six clones), ST1088 (four clones), ST25 (four clones), ST392 (three clones), and ST36 (two clones). ST706 was PDR, and ST1088 clones were MDR; neither of these STs has been reported in Mexico. The strains analyzed were from different hospitals and locations; thus, it is important to maintain antibiotic surveillance and avoid clone dissemination to prevent outbreaks, adaptation to antibiotics, and the transmission of antibiotic resistance.
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Affiliation(s)
- María Guadalupe Córdova-Espinoza
- Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Departamento de Microbiología, Prolongación de Carpio y Plan de Ayala S/N, Col. Casco de Santo Tomas, Alcaldía Miguel Hidalgo, Mexico City 11340, Mexico
- Escuela Militar de Graduados de Sanidad SEDENA, Laboratorio de Inmunologia, Batalla de Celaya 202, Col. Lomas de Sotelo, Alcaldía Miguel Hidalgo, Mexico City 11200, Mexico
| | - Silvia Giono-Cerezo
- Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Departamento de Microbiología, Prolongación de Carpio y Plan de Ayala S/N, Col. Casco de Santo Tomas, Alcaldía Miguel Hidalgo, Mexico City 11340, Mexico
| | - Erika Gabriela Sierra-Atanacio
- Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Departamento de Microbiología, Prolongación de Carpio y Plan de Ayala S/N, Col. Casco de Santo Tomas, Alcaldía Miguel Hidalgo, Mexico City 11340, Mexico
| | - Alejandro Escamilla-Gutiérrez
- Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Departamento de Microbiología, Prolongación de Carpio y Plan de Ayala S/N, Col. Casco de Santo Tomas, Alcaldía Miguel Hidalgo, Mexico City 11340, Mexico
- Instituto Mexicano del Seguro Social, Hospital General "Dr. Gaudencio González Garza", Centro Medico Nacional La Raza, Privada de las Jacarandas, S/N, Col. La Raza, Alcaldía Azcapotzalco, Mexico City 02990, Mexico
| | - Eduardo Carrillo-Tapia
- Colegio de Ciencias y Humanidades, Universidad Autónoma de la Ciudad de México, Avenida de la Corona 320, Col. Loma de la Palma, Alcaldia Gustavo a Madero, Mexico City 07160, Mexico
| | - Laura Isabel Carrillo-Vázquez
- Posgrado en Ciencia Genómicas, Universidad Autónoma de la Ciudad de México, San Lorenzo 290, Col. Del Valle, Alcaldía Benito Juárez, Mexico City 03130, Mexico
| | - Felipe Mendoza-Pérez
- Laboratorio de Biotecnología, Departamento de Sistemas Biológicos, Universidad Autónoma Metropolitana Unidad Xochimilco, Calzada del Hueso 1100, Col. Villa Quietud, Alcaldía Coyoacán, Mexico City 04960, Mexico
| | - Martha Leyte-Lugo
- Laboratorio de Biotecnología, Departamento de Sistemas Biológicos, CONACYT-Universidad Autónoma Metropolitana Unidad Xochimilco, Calzada del Hueso 1100, Col. Villa Quietud, Alcaldía Coyoacán, Mexico City 04960, Mexico
| | - Raquel González-Vázquez
- Laboratorio de Biotecnología, Departamento de Sistemas Biológicos, CONACYT-Universidad Autónoma Metropolitana Unidad Xochimilco, Calzada del Hueso 1100, Col. Villa Quietud, Alcaldía Coyoacán, Mexico City 04960, Mexico
| | - Lino Mayorga-Reyes
- Laboratorio de Biotecnología, Departamento de Sistemas Biológicos, Universidad Autónoma Metropolitana Unidad Xochimilco, Calzada del Hueso 1100, Col. Villa Quietud, Alcaldía Coyoacán, Mexico City 04960, Mexico
| | - Rosa González-Vázquez
- Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Departamento de Microbiología, Prolongación de Carpio y Plan de Ayala S/N, Col. Casco de Santo Tomas, Alcaldía Miguel Hidalgo, Mexico City 11340, Mexico
- Instituto Mexicano del Seguro Social, Unidad Médica de Alta Especialidad, Hospital de Especialidades "Dr. Antonio Fraga Mouret", Centro Medico Nacional La Raza. Seris y Zaachila S/N, Col. La Raza, Alcaldía Azcapotzalco, Mexico City 02990, Mexico
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12
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Nichols WW, Lahiri SD, Bradford PA, Stone GG. The primary pharmacology of ceftazidime/avibactam: resistance in vitro. J Antimicrob Chemother 2023; 78:569-585. [PMID: 36702744 DOI: 10.1093/jac/dkac449] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023] Open
Abstract
This article reviews resistance to ceftazidime/avibactam as an aspect of its primary pharmacology, linked thematically with recent reviews of the basic in vitro and in vivo translational biology of the combination (J Antimicrob Chemother 2022; 77: 2321-40 and 2341-52). In Enterobacterales or Pseudomonas aeruginosa, single-step exposures to 8× MIC of ceftazidime/avibactam yielded frequencies of resistance from <∼0.5 × 10-9 to 2-8 × 10-9, depending on the host strain and the β-lactamase harboured. β-Lactamase structural gene mutations mostly affected the avibactam binding site through changes in the Ω-loop: e.g. Asp179Tyr (D179Y) in KPC-2. Other mutations included ones proposed to reduce the permeability to ceftazidime and/or avibactam through changes in outer membrane structure, up-regulated efflux, or both. The existence, or otherwise, of cross-resistance between ceftazidime/avibactam and other antibacterial agents was also reviewed as a key element of the preclinical primary pharmacology of the new agent. Cross-resistance between ceftazidime/avibactam and other β-lactam-based antibacterial agents was caused by MBLs. Mechanism-based cross-resistance was not observed between ceftazidime/avibactam and fluoroquinolones, aminoglycosides or colistin. A low level of general co-resistance to ceftazidime/avibactam was observed in MDR Enterobacterales and P. aeruginosa. For example, among 2821 MDR Klebsiella spp., 3.4% were resistant to ceftazidime/avibactam, in contrast to 0.07% of 8177 non-MDR isolates. Much of this was caused by possession of MBLs. Among 1151 MDR, XDR and pandrug-resistant isolates of P. aeruginosa from the USA, 11.1% were resistant to ceftazidime/avibactam, in contrast to 3.0% of 7452 unselected isolates. In this case, the decreased proportion susceptible was not due to MBLs.
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Affiliation(s)
| | - Sushmita D Lahiri
- Infectious Diseases and Vaccines, Johnson & Johnson, Cambridge, MA, USA
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Büter A, Maschkowitz G, Baum M, Mishra YK, Siebert L, Adelung R, Fickenscher H. Antibacterial Activity of Nanostructured Zinc Oxide Tetrapods. Int J Mol Sci 2023; 24:ijms24043444. [PMID: 36834854 PMCID: PMC9964984 DOI: 10.3390/ijms24043444] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Revised: 02/06/2023] [Accepted: 02/08/2023] [Indexed: 02/11/2023] Open
Abstract
Zinc oxide (ZnO) tetrapods as microparticles with nanostructured surfaces show peculiar physical properties and anti-infective activities. The aim of this study was to investigate the antibacterial and bactericidal properties of ZnO tetrapods in comparison to spherical, unstructured ZnO particles. Additionally, killing rates of either methylene blue-treated or untreated tetrapods and spherical ZnO particles for Gram-negative and Gram-positive bacteria species were determined. ZnO tetrapods showed considerable bactericidal activity against Staphylococcus aureus, and Klebsiella pneumoniae isolates, including multi-resistant strains, while Pseudomonas aeruginosa and Enterococcus faecalis remained unaffected. Almost complete elimination was reached after 24 h for Staphylococcus aureus at 0.5 mg/mL and Klebsiella pneumoniae at 0.25 mg/mL. Surface modifications of spherical ZnO particles by treatment with methylene blue even improved the antibacterial activity against Staphylococcus aureus. Nanostructured surfaces of ZnO particles provide active and modifiable interfaces for the contact with and killing of bacteria. The application of solid state chemistry, i.e., the direct matter-to-matter interaction between active agent and bacterium, in the form of ZnO tetrapods and non-soluble ZnO particles, can add an additional principle to the spectrum of antibacterial mechanisms, which is, in contrast to soluble antibiotics, depending on the direct local contact with the microorganisms on tissue or material surfaces.
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Affiliation(s)
- Aike Büter
- Institute for Infection Medicine, University Medical Center Schleswig-Holstein, Christian-Albrecht University of Kiel, 24105 Kiel, Germany
| | - Gregor Maschkowitz
- Institute for Infection Medicine, University Medical Center Schleswig-Holstein, Christian-Albrecht University of Kiel, 24105 Kiel, Germany
| | - Martina Baum
- Functional Nanomaterials, Institute of Material Science, Christian-Albrecht University of Kiel, 24143 Kiel, Germany
| | - Yogendra Kumar Mishra
- Smart Materials, NanoSYD, Mads Clausen Institute, University of Southern Denmark, 6400 Sønderburg, Denmark
| | - Leonard Siebert
- Functional Nanomaterials, Institute of Material Science, Christian-Albrecht University of Kiel, 24143 Kiel, Germany
- Kiel Nano, Surface and Interface Science (KiNSIS), Christian-Albrecht University of Kiel, 24118 Kiel, Germany
| | - Rainer Adelung
- Functional Nanomaterials, Institute of Material Science, Christian-Albrecht University of Kiel, 24143 Kiel, Germany
- Kiel Nano, Surface and Interface Science (KiNSIS), Christian-Albrecht University of Kiel, 24118 Kiel, Germany
| | - Helmut Fickenscher
- Institute for Infection Medicine, University Medical Center Schleswig-Holstein, Christian-Albrecht University of Kiel, 24105 Kiel, Germany
- Correspondence: ; Tel.: +49-431-500-15300
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14
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Li F, Wang J, Jiang Y, Guo Y, Liu N, Xiao S, Yao L, Li J, Zhuo C, He N, Liu B, Zhuo C. Adaptive Evolution Compensated for the Plasmid Fitness Costs Brought by Specific Genetic Conflicts. Pathogens 2023; 12:pathogens12010137. [PMID: 36678485 PMCID: PMC9861728 DOI: 10.3390/pathogens12010137] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Revised: 12/30/2022] [Accepted: 01/09/2023] [Indexed: 01/19/2023] Open
Abstract
New Delhi metallo-β-lactamase (NDM)-carrying IncX3 plasmids is important in the transmission of carbapenem resistance in Escherichia coli. Fitness costs related to plasmid carriage are expected to limit gene exchange; however, the causes of these fitness costs are poorly understood. Compensatory mutations are believed to ameliorate plasmid fitness costs and enable the plasmid's wide spread, suggesting that such costs are caused by specific plasmid-host genetic conflicts. By combining conjugation tests and experimental evolution with comparative genetic analysis, we showed here that the fitness costs related to ndm/IncX3 plasmids in E. coli C600 are caused by co-mutations of multiple host chromosomal genes related to sugar metabolism and cell membrane function. Adaptive evolution revealed that mutations in genes associated with oxidative stress, nucleotide and short-chain fatty acid metabolism, and cell membranes ameliorated the costs associated with plasmid carriage. Specific genetic conflicts associated with the ndm/IncX3 plasmid in E. coli C600 involve metabolism and cell-membrane-related genes, which could be ameliorated by compensatory mutations. Collectively, our findings could explain the wide spread of IncX3 plasmids in bacterial genomes, despite their potential cost.
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Affiliation(s)
- Feifeng Li
- State Key Laboratory of Respiratory Disease, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510030, China
| | - Jiong Wang
- State Key Laboratory of Respiratory Disease, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510030, China
| | - Ying Jiang
- Department of Respiratory Medicine, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510030, China
| | - Yingyi Guo
- State Key Laboratory of Respiratory Disease, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510030, China
| | - Ningjing Liu
- State Key Laboratory of Respiratory Disease, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510030, China
| | - Shunian Xiao
- State Key Laboratory of Respiratory Disease, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510030, China
| | - Likang Yao
- State Key Laboratory of Respiratory Disease, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510030, China
| | - Jiahui Li
- State Key Laboratory of Respiratory Disease, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510030, China
| | - Chuyue Zhuo
- State Key Laboratory of Respiratory Disease, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510030, China
| | - Nanhao He
- State Key Laboratory of Respiratory Disease, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510030, China
| | - Baomo Liu
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Sun Yat-sen Univesity, Guangzhou 510030, China
- Correspondence: (B.L.); (C.Z.)
| | - Chao Zhuo
- State Key Laboratory of Respiratory Disease, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510030, China
- Correspondence: (B.L.); (C.Z.)
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15
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Quinones as an Efficient Molecular Scaffold in the Antibacterial/Antifungal or Antitumoral Arsenal. Int J Mol Sci 2022; 23:ijms232214108. [PMID: 36430585 PMCID: PMC9697455 DOI: 10.3390/ijms232214108] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2022] [Revised: 11/07/2022] [Accepted: 11/11/2022] [Indexed: 11/17/2022] Open
Abstract
Quinone-based compounds constitute several general classes of antibiotics that have long shown unwavering efficiency against both Gram-positive and Gram-negative microbial infections. These quinone-based antibiotics are increasingly popular due to their natural origins and are used in natural beverages from herbs or plants in African, Chinese and Indian traditional medicines to treat and prevent various diseases. Quinone-based antibiotics display different bioactive profiles depending on their structures and exert specific biocidal and anti-biofilm properties, and based on recent literature, will be discussed herein.
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Ribeiro ÁCDS, Santos FF, Moses IB, Minarini LADR, Gales AC. Sequencing of fosA: A Rapid and Inexpensive Method for Discriminating Klebsiella pneumoniae CC258 from Other Clones. Microb Drug Resist 2022; 28:1037-1042. [DOI: 10.1089/mdr.2022.0081] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Affiliation(s)
- Ághata Cardoso da Silva Ribeiro
- Laboratório Alerta, Division of Infectious Diseases, Department of Internal Medicine, Escola Paulista de Medicina/Universidade Federal de São Paulo (UNIFESP), São Paulo, São Paulo, Brazil
| | - Fernanda Fernandes Santos
- Laboratório Alerta, Division of Infectious Diseases, Department of Internal Medicine, Escola Paulista de Medicina/Universidade Federal de São Paulo (UNIFESP), São Paulo, São Paulo, Brazil
| | - Ikechukwu Benjamin Moses
- Laboratório Alerta, Division of Infectious Diseases, Department of Internal Medicine, Escola Paulista de Medicina/Universidade Federal de São Paulo (UNIFESP), São Paulo, São Paulo, Brazil
- Department of Applied Microbiology, Faculty of Science, Ebonyi State University, Abakaliki, Nigeria
| | - Luciene Andrade da Rocha Minarini
- Laboratório Multidisciplinar em Saúde e Meio Ambiente, Departamento de Ciências Farmacêuticas, Instituto de Ciências Ambientais, Químicas e Farmacêuticas, Universidade Federal de São Paulo (UNIFESP), Diadema, São Paulo, Brazil
| | - Ana Cristina Gales
- Laboratório Alerta, Division of Infectious Diseases, Department of Internal Medicine, Escola Paulista de Medicina/Universidade Federal de São Paulo (UNIFESP), São Paulo, São Paulo, Brazil
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Highly Virulent and Multidrug-Resistant Escherichia coli Sequence Type 58 from a Sausage in Germany. Antibiotics (Basel) 2022; 11:antibiotics11081006. [PMID: 35892394 PMCID: PMC9331442 DOI: 10.3390/antibiotics11081006] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2022] [Revised: 07/22/2022] [Accepted: 07/24/2022] [Indexed: 11/16/2022] Open
Abstract
Studies have previously described the occurrence of multidrug-resistant (MDR) Escherichia coli in human and veterinary medical settings, livestock, and, to a lesser extent, in the environment and food. While they mostly analyzed foodborne E. coli regarding phenotypic and sometimes genotypic antibiotic resistance and basic phylogenetic classification, we have limited understanding of the in vitro and in vivo virulence characteristics and global phylogenetic contexts of these bacteria. Here, we investigated in-depth an E. coli strain (PBIO3502) isolated from a pork sausage in Germany in 2021. Whole-genome sequence analysis revealed sequence type (ST)58, which has an internationally emerging high-risk clonal lineage. In addition to its MDR phenotype that mostly matched the genotype, PBIO3502 demonstrated pronounced virulence features, including in vitro biofilm formation, siderophore secretion, serum resilience, and in vivo mortality in Galleria mellonella larvae. Along with the genomic analysis indicating close phylogenetic relatedness of our strain with publicly available, clinically relevant representatives of the same ST, these results suggest the zoonotic and pathogenic character of PBIO3502 with the potential to cause infection in humans and animals. Additionally, our study highlights the necessity of the One Health approach while integrating human, animal, and environmental health, as well as the role of meat products and food chains in the putative transmission of MDR pathogens.
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Siddiqa A, Zubair M, Bilal M, Rasool N, Qamar MU, Khalid A, Ahmad G, Imran M, Mahmood S, Ashraf GA. Synthesis of Functionalized N-(4-Bromophenyl)furan-2-carboxamides via Suzuki-Miyaura Cross-Coupling: Anti-Bacterial Activities against Clinically Isolated Drug Resistant A. baumannii, K. pneumoniae, E. cloacae and MRSA and Its Validation via a Computational Approach. Pharmaceuticals (Basel) 2022; 15:ph15070841. [PMID: 35890140 PMCID: PMC9319355 DOI: 10.3390/ph15070841] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2022] [Revised: 06/27/2022] [Accepted: 06/29/2022] [Indexed: 02/04/2023] Open
Abstract
N-(4-bromophenyl)furan-2-carboxamide (3) was synthesized by the reaction furan-2-carbonyl chloride (1) and 4-bromoaniline (2) in the presence of Et3N in excellent yields of 94%. The carboxamide (3) was arylated by employing triphenylphosphine palladium as a catalyst and K3PO4 as a base to afford N-(4-bromophenyl)furan-2-carboxamide analogues (5a-i) in moderate to good yields (43–83%). Furthermore, we investigated the in vitro anti-bacterial activities of the respective compounds against clinically isolated drug-resistant bacteria A. baumannii, K. pneumoniae, E. cloacae and S. aureus. The molecule (3) was found to be the most effective activity against these bacteria, particularly NDM-positive bacteria A. baumannii as compared to various commercially available drugs. Docking studies and MD simulations further validated it, expressing the active site and molecular interaction stability.
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Affiliation(s)
- Ayesha Siddiqa
- Department of Chemistry, Government College, University Faisalabad, Faisalabad 38000, Pakistan; (A.S.); (M.B.); (N.R.); (G.A.)
| | - Muhammad Zubair
- Department of Chemistry, Government College, University Faisalabad, Faisalabad 38000, Pakistan; (A.S.); (M.B.); (N.R.); (G.A.)
- Correspondence: (M.Z.); (G.A.A.); Tel.: +92-300-892-3442 (M.Z.)
| | - Muhammad Bilal
- Department of Chemistry, Government College, University Faisalabad, Faisalabad 38000, Pakistan; (A.S.); (M.B.); (N.R.); (G.A.)
| | - Nasir Rasool
- Department of Chemistry, Government College, University Faisalabad, Faisalabad 38000, Pakistan; (A.S.); (M.B.); (N.R.); (G.A.)
| | - Muhammad Usman Qamar
- Department of Microbiology, Faculty of Life Sciences, Government College, University Faisalabad, Faisalabad 38000, Pakistan;
| | - Aqsa Khalid
- School of Interdisciplinary Engineering & Science (SINES), National University of Sciences and Technology (NUST), Islamabad 44000, Pakistan;
| | - Gulraiz Ahmad
- Department of Chemistry, Government College, University Faisalabad, Faisalabad 38000, Pakistan; (A.S.); (M.B.); (N.R.); (G.A.)
| | - Muhammad Imran
- Department of Chemistry, Faculty of Science, King Khalid University, P.O. Box 9004, Abha 61413, Saudi Arabia;
| | - Sajid Mahmood
- Key Laboratory of the Ministry of Eduction for Advanced Catalysis Materials, Department of Chemistry, Zhejiang Normal University, Jinhua 312004, China;
| | - Ghulam Abbas Ashraf
- Department of Physics, Zhejiang Normal University, Jinhua 312004, China
- Correspondence: (M.Z.); (G.A.A.); Tel.: +92-300-892-3442 (M.Z.)
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