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Rizvi M, Malhotra S, Agarwal J, Siddiqui AH, Devi S, Poojary A, Thakuria B, Princess I, Sami H, Gupta A, Sultan A, Jitendranath A, Mohan B, Banashankari GS, Khan F, Kalita JB, Jain M, Singh NP, Gur R, Mohapatra S, Farooq S, Purwar S, Jankhwala MS, Yamunadevi VR, Masters K, Goyal N, Sen M, Zadjali RA, Jaju S, Rugma R, Meena S, Dutta S, Langford B, Brown KA, Dougherty KM, Kanungo R, Jabri ZA, Singh S, Singh S, Taneja N, John KHS, Sardana R, Kapoor P, Jardani AA, Soman R, Balkhair A, Livermore DM. Regional variations in antimicrobial susceptibility of community-acquired uropathogenic Escherichia coli in India: Findings of a multicentric study highlighting the importance of local antibiograms. IJID REGIONS 2024; 11:100370. [PMID: 38812702 PMCID: PMC11134879 DOI: 10.1016/j.ijregi.2024.100370] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/04/2024] [Revised: 04/20/2024] [Accepted: 04/22/2024] [Indexed: 05/31/2024]
Abstract
Objectives Evidence-based prescribing is essential to optimize patient outcomes in cystitis. This requires knowledge of local antibiotic resistance rates. Diagnostic and Antimicrobial Stewardship (DASH) to Protect Antibiotics (https://dashuti.com/) is a multicentric mentorship program guiding centers in preparing, analyzing and disseminating local antibiograms to promote antimicrobial stewardship in community urinary tract infection. Here, we mapped the susceptibility profile of Escherichia coli from 22 Indian centers. Methods These centers spanned 10 Indian states and three union territories. Antibiograms for urinary E. coli from the outpatient departments were collated. Standardization was achieved by regional online training; anomalies were resolved via consultation with study experts. Data were collated and analyzed. Results Nationally, fosfomycin, with 94% susceptibility (inter-center range 83-97%), and nitrofurantoin, with 85% susceptibility (61-97%), retained the widest activity. The susceptibility rates were lower for co-trimoxazole (49%), fluoroquinolones (31%), and oral cephalosporins (26%). The rates for third- and fourth-generation cephalosporins were 46% and 52%, respectively, with 54% (33-58%) extended-spectrum β-lactamase prevalence. Piperacillin-tazobactam (81%), amikacin (88%), and meropenem (88%) retained better activity; however, one center in Delhi recorded only 42% meropenem susceptibility. Susceptibility rates were mostly higher in South, West, and Northeast India; centers in the heavily populated Gangetic plains, across north and northwest India, had greater resistance. These findings highlight the importance of local antibiograms in guiding appropriate antimicrobial choices. Conclusions Fosfomycin and nitrofurantoin are the preferred oral empirical choices for uncomplicated E. coli cystitis in India, although elevated resistance in some areas is concerning. Empiric use of fluoroquinolones and third-generation cephalosporins is discouraged, whereas piperacillin/tazobactam and aminoglycosides remain carbapenem-sparing parenteral agents.
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Affiliation(s)
- Meher Rizvi
- Department of Microbiology and Immunology, College of Medicine and Health Sciences, Sultan Qaboos University, Muscat, Oman
| | - Shalini Malhotra
- Department of Microbiology, ABVIMS and Dr RML Hospital, New Delhi, India
| | - Jyotsna Agarwal
- Department of Microbiology, Dr Ram Manohar Lohia Institute of Medical Sciences, Lucknow, India
| | | | - Sheela Devi
- Department of Microbiology, Pondicherry Institute of Medical Sciences, Pondicherry, India
| | - Aruna Poojary
- Department of Pathology & Microbiology, Breach Candy Hospital Trust, Mumbai, India
| | - Bhaskar Thakuria
- Department of Microbiology, All India Institute of Medical Sciences Patna, Patna, India
| | | | - Hiba Sami
- Department of Microbiology, Jawaharlal Nehru Medical College and Hospital, AMU, Aligarh, India
| | - Aarti Gupta
- Agilus Diagnostics Limited, Fortis Memorial Research Institute, Gurugram, India
| | - Asfia Sultan
- Department of Microbiology, Jawaharlal Nehru Medical College and Hospital, AMU, Aligarh, India
| | - Ashish Jitendranath
- Department of Microbiology, Sree Gokulam Medical College and Research Foundation, Thiruvananthapuram, India
| | - Balvinder Mohan
- Department of Medical Microbiology, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | | | - Fatima Khan
- Department of Microbiology, Jawaharlal Nehru Medical College and Hospital, AMU, Aligarh, India
| | | | - Mannu Jain
- Surat Municipal Institute of Medical Education and Research (SMIMER), Surat, India
| | - Narendra Pal Singh
- Department of Microbiology, University College of Medical Sciences & GTB Hospital, Delhi, India
| | - Renu Gur
- Department of Microbiology, Dr. Baba Saheb Ambedkar Medical College & Hospital, Delhi, India
| | - Sarita Mohapatra
- Department of Microbiology, All India Institute of Medical Sciences, New Delhi, India
| | - Shaika Farooq
- Department of Microbiology, GMC Srinagar, Srinagar, India
| | - Shashank Purwar
- Department of Microbiology, All India Institute of Medical Sciences Bhopal, Bhopal, India
| | - Mohmed Soeb Jankhwala
- Department of Microbiology, Nootan Medical College and Research Centre, Sankalchand Patel University, Visnagar, India
| | | | - Ken Masters
- Medical Education and Informatics Department, College of Medicine and Health Sciences, Sultan Qaboos University, Muscat, Oman
| | - Nisha Goyal
- Department of Microbiology, University College of Medical Sciences & GTB Hospital, Delhi, India
| | - Manodeep Sen
- Department of Microbiology, Dr Ram Manohar Lohia Institute of Medical Sciences, Lucknow, India
| | - Razan Al Zadjali
- Department of Biochemistry, College of Medicine and Health Sciences, Sultan Qaboos University, Muscat, Oman
| | - Sanjay Jaju
- Family Medicine & Public Health, College of Medicine and Health Sciences, Sultan Qaboos University, Muscat, Oman
| | - Rajendradas Rugma
- Department of Microbiology, Sree Gokulam Medical College and Research Foundation, Kerala, India
| | - Suneeta Meena
- Department of Laboratory Medicine, All India Institute of Medical Sciences, New Delhi, India
| | - Sudip Dutta
- Department of Laboratory Medicine, All India Institute of Medical Sciences, New Delhi, India
| | | | | | | | - Reba Kanungo
- Department of Microbiology, Pondicherry Institute of Medical Sciences, Pondicherry, India
| | - Zaaima Al Jabri
- Department of Microbiology and Immunology, College of Medicine and Health Sciences, Sultan Qaboos University, Muscat, Oman
| | - Sanjeev Singh
- Department of Medicine- Infection Diseases and Epidemiology, Amrita Institute of Medical Sciences, Faridabad, India
| | - Sarman Singh
- All India Institute of Medical Sciences, Bhopal, India
| | - Neelam Taneja
- Department of Medical Microbiology, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | | | - Raman Sardana
- Clinical Microbiology and Infection Control, Indraprastha Apollo Hospitals, New Delhi, India
- The IFIC, Oxford, UK
- Hospital Infection Society-India, New Delhi, India
| | - Pawan Kapoor
- National Accreditation Board for Hospitals and Healthcare Providers, New Delhi, India
| | - Amina Al Jardani
- Central Public Health Laboratories, Directorate General for Disease Surveillance and Control, Ministry of Health, Muscat, Oman
| | | | - Abdullah Balkhair
- Infectious Diseases Unit, Department of Medicine, Sultan Qaboos University Hospital, Sultan Qaboos University, Muscat, Oman
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Gavara L, Verdirosa F, Sevaille L, Legru A, Corsica G, Nauton L, Sandra Mercuri P, Sannio F, De Luca F, Hadjadj M, Cerboni G, Vo Hoang Y, Licznar-Fajardo P, Galleni M, Docquier JD, Hernandez JF. 1,2,4-Triazole-3-thione analogues with an arylakyl group at position 4 as metallo-β-lactamase inhibitors. Bioorg Med Chem 2022; 72:116964. [PMID: 36030663 DOI: 10.1016/j.bmc.2022.116964] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2022] [Revised: 07/22/2022] [Accepted: 08/06/2022] [Indexed: 12/31/2022]
Abstract
Metallo-β-lactamases (MBLs) represent an increasingly serious threat to public health because of their increased prevalence worldwide in relevant opportunistic Gram-negative pathogens. MBLs efficiently inactivate widely used and most valuable β-lactam antibiotics, such as oxyiminocephalosporins (ceftriaxone, ceftazidime) and the last-resort carbapenems. To date, no MBL inhibitor has been approved for therapeutic applications. We are developing inhibitors characterized by a 1,2,4-triazole-3-thione scaffold as an original zinc ligand and few promising series were already reported. Here, we present the synthesis and evaluation of a new series of compounds characterized by the presence of an arylalkyl substituent at position 4 of the triazole ring. The alkyl link was mainly an ethylene, but a few compounds without alkyl or with an alkyl group of various lengths up to a butyl chain were also synthesized. Some compounds in both sub-series were micromolar to submicromolar inhibitors of tested VIM-type MBLs. A few of them were broad-spectrum inhibitors, as they showed significant inhibitory activity on NDM-1 and, to a lesser extent, IMP-1. Among these, several inhibitors were able to significantly reduce the meropenem MIC on VIM-1- and VIM-4- producing clinical isolates by up to 16-fold. In addition, ACE inhibition was absent or moderate and one promising compound did not show toxicity toward HeLa cells at concentrations up to 250 μM. This series represents a promising basis for further exploration. Finally, molecular modelling of representative compounds in complex with VIM-2 was performed to study their binding mode.
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Affiliation(s)
- Laurent Gavara
- Institut des Biomolécules Max Mousseron, Univ Montpellier, CNRS, ENSCM, Montpellier, France.
| | - Federica Verdirosa
- Dipartimento di Biotecnologie Mediche, Università di Siena, I-53100 Siena, Italy
| | - Laurent Sevaille
- Institut des Biomolécules Max Mousseron, Univ Montpellier, CNRS, ENSCM, Montpellier, France
| | - Alice Legru
- Institut des Biomolécules Max Mousseron, Univ Montpellier, CNRS, ENSCM, Montpellier, France
| | - Giuseppina Corsica
- Dipartimento di Biotecnologie Mediche, Università di Siena, I-53100 Siena, Italy
| | - Lionel Nauton
- Institut de Chimie de Clermont-Ferrand, Université Clermont-Auvergne, CNRS, Clermont-Ferrand, France
| | - Paola Sandra Mercuri
- Laboratoire des Macromolécules Biologiques, Centre d'Ingénierie des Protéines-InBioS, Université de Liège, Institute of Chemistry B6a, Sart-Tilman, 4000 Liège, Belgium
| | - Filomena Sannio
- Dipartimento di Biotecnologie Mediche, Università di Siena, I-53100 Siena, Italy
| | - Filomena De Luca
- Dipartimento di Biotecnologie Mediche, Università di Siena, I-53100 Siena, Italy
| | - Margot Hadjadj
- Institut des Biomolécules Max Mousseron, Univ Montpellier, CNRS, ENSCM, Montpellier, France
| | - Giulia Cerboni
- Dipartimento di Biotecnologie Mediche, Università di Siena, I-53100 Siena, Italy
| | - Yen Vo Hoang
- Institut des Biomolécules Max Mousseron, Univ Montpellier, CNRS, ENSCM, Montpellier, France
| | | | - Moreno Galleni
- Laboratoire des Macromolécules Biologiques, Centre d'Ingénierie des Protéines-InBioS, Université de Liège, Institute of Chemistry B6a, Sart-Tilman, 4000 Liège, Belgium
| | - Jean-Denis Docquier
- Dipartimento di Biotecnologie Mediche, Università di Siena, I-53100 Siena, Italy; Laboratoire de Bactériologie Moléculaire, Centre d'Ingénierie des Protéines-InBioS, Université de Liège, B-4000 Liège, Belgium.
| | - Jean-François Hernandez
- Institut des Biomolécules Max Mousseron, Univ Montpellier, CNRS, ENSCM, Montpellier, France.
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Abderrahim A, Djahmi N, Loucif L, Nedjai S, Chelaghma W, Gameci-Kirane D, Dekhil M, Lavigne JP, Pantel A. Dissemination of OXA-48- and NDM-1-Producing Enterobacterales Isolates in an Algerian Hospital. Antibiotics (Basel) 2022; 11:antibiotics11060750. [PMID: 35740155 PMCID: PMC9220339 DOI: 10.3390/antibiotics11060750] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2022] [Revised: 05/27/2022] [Accepted: 05/27/2022] [Indexed: 02/05/2023] Open
Abstract
Multidrug-resistant (MDR) Enterobacterales remain an increasing problem in Algeria, notably due to the emergence of carbapenemase producers. We investigated the molecular characteristics of carbapenem-resistant Enterobacterales isolates recovered from outpatients and inpatients in Eastern Algeria. Non-repetitive Enterobacterales with reduced susceptibility to carbapenems were consecutively collected from clinical specimens in Annaba University Hospital (Algeria) between April 2016 and December 2018. Isolates were characterized with regard to antibiotic resistance, resistome and virulome content, clonality, and plasmid support. Of the 168 isolates analyzed, 29 (17.3%) were carbapenemase producers and identified as K. pneumoniae (n = 23), E. coli (n = 5), and E. cloacae (n = 1). blaOXA-48 was the most prevalent carbapenemase-encoding gene (n = 26/29), followed by blaNDM-1 gene (n = 3/29). K. pneumoniae isolates harbored some virulence traits (entB, ugeF, ureA, mrkD, fimH), whereas E. coli had a commensal origin (E, A, and B1). Clonality analysis revealed clonal expansions of ST101 K. pneumoniae and ST758 E. coli. Plasmid analysis showed a large diversity of incompatibility groups, with a predominance of IncM (n = 26, 89.7%). A global dissemination of OXA-48-producing Enterobacterales in the Algerian hospital but also the detection of NDM-1-producing E. coli in community settings were observed. The importance of this diffusion must be absolutely investigated and controlled.
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Affiliation(s)
- Amel Abderrahim
- Département de Biochimie, Faculté des Sciences, Université Badji Mokhtar Annaba, Annaba 23000, Algeria; (A.A.); (D.G.-K.)
| | - Nassima Djahmi
- Laboratoire de Microbiologie, CHU Ibn Rochd, Annaba 23000, Algeria; (N.D.); (S.N.); (M.D.)
| | - Lotfi Loucif
- Laboratoire de Biotechnologie des Molécules Bioactives et de la Physiopathologie Cellulaire (LBMBPC), Faculté des Sciences de la Nature et de la Vie, Université de Batna 2, Batna 05000, Algeria;
| | - Sabrina Nedjai
- Laboratoire de Microbiologie, CHU Ibn Rochd, Annaba 23000, Algeria; (N.D.); (S.N.); (M.D.)
| | - Widad Chelaghma
- Laboratoire de Microbiologie Appliquée à l’Agroalimentaire au Biomédical et à l’Environnement, Département de Biologie, Faculté des Sciences de la Nature et de la Vie et Sciences de la Terre et de l’Univers, Université Abou Bekr Belkaid, Tlemcen 13000, Algeria;
| | - Djamila Gameci-Kirane
- Département de Biochimie, Faculté des Sciences, Université Badji Mokhtar Annaba, Annaba 23000, Algeria; (A.A.); (D.G.-K.)
| | - Mazouz Dekhil
- Laboratoire de Microbiologie, CHU Ibn Rochd, Annaba 23000, Algeria; (N.D.); (S.N.); (M.D.)
| | - Jean-Philippe Lavigne
- Virulence Bactérienne et Infections Chroniques, INSERM U1047, Université Montpellier, Service de Microbiologie et Hygiène Hospitalière, CHU Nîmes, 30900 Nîmes, France;
- Correspondence: ; Tel.: +33-466-683-202
| | - Alix Pantel
- Virulence Bactérienne et Infections Chroniques, INSERM U1047, Université Montpellier, Service de Microbiologie et Hygiène Hospitalière, CHU Nîmes, 30900 Nîmes, France;
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4
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Verdirosa F, Gavara L, Sevaille L, Tassone G, Corsica G, Legru A, Feller G, Chelini G, Mercuri PS, Tanfoni S, Sannio F, Benvenuti M, Cerboni G, De Luca F, Bouajila E, Vo Hoang Y, Licznar-Fajardo P, Galleni M, Pozzi C, Mangani S, Docquier JD, Hernandez JF. 1,2,4-Triazole-3-Thione Analogues with a 2-Ethylbenzoic Acid at Position 4 as VIM-type Metallo-β-Lactamase Inhibitors. ChemMedChem 2022; 17:e202100699. [PMID: 35050549 DOI: 10.1002/cmdc.202100699] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2021] [Revised: 12/27/2021] [Indexed: 11/05/2022]
Abstract
Metallo-β-lactamases (MBLs) are increasingly involved as a major mechanism of resistance to carbapenems in relevant opportunistic Gram-negative pathogens. Unfortunately, clinically efficient MBL inhibitors still represent an unmet medical need . We previously reported several series of compounds based on the 1,2,4-triazole-3-thione scaffold. In particular, Schiff bases formed between diversely 5-substituted-4-amino compounds and 2-carboxybenzaldehyde were broad-spectrum inhibitors of VIM-type, NDM-1 and IMP-1 MBLs. Unfortunately, they were unable to restore antibiotic susceptibility of MBL-producing bacteria, probably because of poor penetration and/or susceptibility to hydrolysis. To improve their microbiological activity, we developed compounds where the hydrazone-like bond of the Schiff bases was replaced by a stable ethyl link. This small change resulted in a narrower inhibition spectrum, as all compounds were poorly or not inhibiting NDM-1 and IMP-1, but some showed a significantly better activity on VIM-type enzymes, with K i values in the μM to sub-μM range. The resolution of the crystallographic structure of VIM-2 in complex with one inhibitor yielded valuable information about their binding mode. Interestingly, several compounds were shown to restore the β-lactam susceptibility of K. pneumoniae clinical isolates. In addition, selected compounds were found to be devoid of toxicity toward human cells at high concentration, thus showing promising safety.
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Affiliation(s)
- Federica Verdirosa
- University of Siena: Universita degli Studi di Siena, Biotecnologie Mediche, ITALY
| | | | | | - Giusy Tassone
- University of Siena: Universita degli Studi di Siena, Biotecnologie, Chimica e Farmacia, ITALY
| | - Giuseppina Corsica
- University of Siena: Universita degli Studi di Siena, Biotecnologie Mediche, ITALY
| | | | - Georges Feller
- Université de Liège: Universite de Liege, Laboratoire de Biochimie, BELGIUM
| | - Giulia Chelini
- University of Siena: Universita degli Studi di Siena, Biotecnologie Mediche, ITALY
| | - Paola S Mercuri
- Université de Liège: Universite de Liege, Laboratoire des Macromolécules Biologiques, BELGIUM
| | - Silvia Tanfoni
- University of Siena: Universita degli Studi di Siena, Biotecnologie Mediche, ITALY
| | - Filomena Sannio
- University of Siena: Universita degli Studi di Siena, Biotecnologie Mediche, ITALY
| | - Manuela Benvenuti
- University of Siena: Universita degli Studi di Siena, Biotecnologie, Chimica e Farmacia, ITALY
| | - Giulia Cerboni
- University of Siena: Universita degli Studi di Siena, Biotecnologie Mediche, ITALY
| | - Filomena De Luca
- University of Siena: Universita degli Studi di Siena, Biotecnologie Mediche, ITALY
| | | | | | | | - Moreno Galleni
- Universite de Liege, Laboratoire des Macromolécules Biologiques, BELGIUM
| | - Cecilia Pozzi
- University of Siena: Universita degli Studi di Siena, Biotecnologie, Chimica e Farmacia, ITALY
| | - Stefano Mangani
- University of Siena: Universita degli Studi di Siena, Biotecnologie, Chimica e Farmacia, ITALY
| | - Jean-Denis Docquier
- University of Siena: Universita degli Studi di Siena, Biotecnologie Mediche, ITALY
| | - Jean-François Hernandez
- Universite de Montpellier, IBMM, Pôle Chimie Balard, Campus CNRS, 34093, Montpellier, FRANCE
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1,2,4-Triazole-3-thione compounds with a 4-ethyl alkyl/aryl sulfide substituent are broad-spectrum metallo-β-lactamase inhibitors with re-sensitization activity. Eur J Med Chem 2021; 226:113873. [PMID: 34626878 DOI: 10.1016/j.ejmech.2021.113873] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2021] [Revised: 09/23/2021] [Accepted: 09/24/2021] [Indexed: 01/04/2023]
Abstract
Metallo-β-lactamases (MBLs) are important contributors of Gram-negative bacteria resistance to β-lactam antibiotics. MBLs are highly worrying because of their carbapenemase activity, their rapid spread in major human opportunistic pathogens while no clinically useful inhibitor is available yet. In this context, we are exploring the potential of compounds based on the 1,2,4-triazole-3-thione scaffold as an original ligand of the di-zinc active sites of MBLs, and diversely substituted at its positions 4 and 5. Here, we present a new series of compounds substituted at the 4-position by a thioether-containing alkyl chain with a carboxylic and/or an aryl group at its extremity. Several compounds showed broad-spectrum inhibition with Ki values in the μM to sub-μM range against VIM-type enzymes, NDM-1 and IMP-1. The presence of the sulfur and of the aryl group was important for the inhibitory activity and the binding mode of a few compounds in VIM-2 was revealed by X-ray crystallography. Importantly, in vitro antibacterial susceptibility assays showed that several inhibitors were able to potentiate the activity of meropenem on Klebsiella pneumoniae clinical isolates producing VIM-1 or VIM-4, with a potentiation effect of up to 16-fold. Finally, a selected compound was found to only moderately inhibit the di-zinc human glyoxalase II, and several showed no or only moderate toxicity toward several human cells, thus favourably completing a promising behaviour.
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6
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Gavara L, Legru A, Verdirosa F, Sevaille L, Nauton L, Corsica G, Mercuri PS, Sannio F, Feller G, Coulon R, De Luca F, Cerboni G, Tanfoni S, Chelini G, Galleni M, Docquier JD, Hernandez JF. 4-Alkyl-1,2,4-triazole-3-thione analogues as metallo-β-lactamase inhibitors. Bioorg Chem 2021; 113:105024. [PMID: 34116340 DOI: 10.1016/j.bioorg.2021.105024] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2021] [Revised: 05/19/2021] [Accepted: 05/22/2021] [Indexed: 12/12/2022]
Abstract
In Gram-negative bacteria, the major mechanism of resistance to β-lactam antibiotics is the production of one or several β-lactamases (BLs), including the highly worrying carbapenemases. Whereas inhibitors of these enzymes were recently marketed, they only target serine-carbapenemases (e.g. KPC-type), and no clinically useful inhibitor is available yet to neutralize the class of metallo-β-lactamases (MBLs). We are developing compounds based on the 1,2,4-triazole-3-thione scaffold, which binds to the di-zinc catalytic site of MBLs in an original fashion, and we previously reported its promising potential to yield broad-spectrum inhibitors. However, up to now only moderate antibiotic potentiation could be observed in microbiological assays and further exploration was needed to improve outer membrane penetration. Here, we synthesized and characterized a series of compounds possessing a diversely functionalized alkyl chain at the 4-position of the heterocycle. We found that the presence of a carboxylic group at the extremity of an alkyl chain yielded potent inhibitors of VIM-type enzymes with Ki values in the μM to sub-μM range, and that this alkyl chain had to be longer or equal to a propyl chain. This result confirmed the importance of a carboxylic function on the 4-substituent of 1,2,4-triazole-3-thione heterocycle. As observed in previous series, active compounds also preferentially contained phenyl, 2-hydroxy-5-methoxyphenyl, naphth-2-yl or m-biphenyl at position 5. However, none efficiently inhibited NDM-1 or IMP-1. Microbiological study on VIM-2-producing E. coli strains and on VIM-1/VIM-4-producing multidrug-resistant K. pneumoniae clinical isolates gave promising results, suggesting that the 1,2,4-triazole-3-thione scaffold worth continuing exploration to further improve penetration. Finally, docking experiments were performed to study the binding mode of alkanoic analogues in the active site of VIM-2.
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Affiliation(s)
- Laurent Gavara
- Institut des Biomolécules Max Mousseron, UMR5247 CNRS, Université de Montpellier, ENSCM, Faculté de Pharmacie, 34093 Montpellier Cedex 5, France.
| | - Alice Legru
- Institut des Biomolécules Max Mousseron, UMR5247 CNRS, Université de Montpellier, ENSCM, Faculté de Pharmacie, 34093 Montpellier Cedex 5, France
| | - Federica Verdirosa
- Dipartimento di Biotecnologie Mediche, Università di Siena, I-53100 Siena, Italy
| | - Laurent Sevaille
- Institut des Biomolécules Max Mousseron, UMR5247 CNRS, Université de Montpellier, ENSCM, Faculté de Pharmacie, 34093 Montpellier Cedex 5, France
| | - Lionel Nauton
- Université Clermont-Auvergne, CNRS, SIGMA Clermont, Institut de Chimie de Clermont-Ferrand, 63000 Clermont-Ferrand, France
| | - Giuseppina Corsica
- Dipartimento di Biotecnologie Mediche, Università di Siena, I-53100 Siena, Italy
| | - Paola Sandra Mercuri
- Laboratoire des Macromolécules Biologiques, Centre d'Ingénierie des Protéines-InBioS, Université de Liège, Institute of Chemistry B6a, Sart-Tilman, 4000 Liège, Belgium
| | - Filomena Sannio
- Dipartimento di Biotecnologie Mediche, Università di Siena, I-53100 Siena, Italy
| | - Georges Feller
- Laboratoire de Biochimie, Centre d'Ingénierie des Protéines-InBioS, Université de Liège, Allée du 6 août B6, Sart-Tilman, 4000 Liège, Belgium
| | - Rémi Coulon
- Institut des Biomolécules Max Mousseron, UMR5247 CNRS, Université de Montpellier, ENSCM, Faculté de Pharmacie, 34093 Montpellier Cedex 5, France
| | - Filomena De Luca
- Dipartimento di Biotecnologie Mediche, Università di Siena, I-53100 Siena, Italy
| | - Giulia Cerboni
- Dipartimento di Biotecnologie Mediche, Università di Siena, I-53100 Siena, Italy
| | - Silvia Tanfoni
- Dipartimento di Biotecnologie Mediche, Università di Siena, I-53100 Siena, Italy
| | - Giulia Chelini
- Dipartimento di Biotecnologie Mediche, Università di Siena, I-53100 Siena, Italy
| | - Moreno Galleni
- Laboratoire des Macromolécules Biologiques, Centre d'Ingénierie des Protéines-InBioS, Université de Liège, Institute of Chemistry B6a, Sart-Tilman, 4000 Liège, Belgium
| | - Jean-Denis Docquier
- Dipartimento di Biotecnologie Mediche, Università di Siena, I-53100 Siena, Italy; Centre d'Ingénierie des Protéines-InBioS, Université de Liège, Allée du 6 août B6, Sart-Tilman, 4000 Liège, Belgium.
| | - Jean-François Hernandez
- Institut des Biomolécules Max Mousseron, UMR5247 CNRS, Université de Montpellier, ENSCM, Faculté de Pharmacie, 34093 Montpellier Cedex 5, France.
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Polyclonal Dissemination of NDM-1- and NDM-9-Producing Escherichia coli and Klebsiella pneumoniae in French Polynesia. Antimicrob Agents Chemother 2021; 65:AAC.02437-20. [PMID: 33495221 DOI: 10.1128/aac.02437-20] [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: 11/19/2020] [Accepted: 01/14/2021] [Indexed: 11/20/2022] Open
Abstract
The whole-genome sequencing analysis revealed a polyclonal dissemination of NDM-1 and NDM-9 variants in Escherichia coli (n = 20) and Klebsiella pneumoniae (n = 2) in Tahiti since 2015 via interspecies transfer of three different bla NDM-carrying plasmids (IncR, IncHI2, and IncF) and patient-to-patient cross-transmission. It highlights the potential risk of importation of NDM producers in France, where French Polynesia is not considered stricto sensu a foreign country from which repatriated patients have to be screened.
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8
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Gavara L, Sevaille L, De Luca F, Mercuri P, Bebrone C, Feller G, Legru A, Cerboni G, Tanfoni S, Baud D, Cutolo G, Bestgen B, Chelini G, Verdirosa F, Sannio F, Pozzi C, Benvenuti M, Kwapien K, Fischer M, Becker K, Frère JM, Mangani S, Gresh N, Berthomieu D, Galleni M, Docquier JD, Hernandez JF. 4-Amino-1,2,4-triazole-3-thione-derived Schiff bases as metallo-β-lactamase inhibitors. Eur J Med Chem 2020; 208:112720. [DOI: 10.1016/j.ejmech.2020.112720] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2020] [Revised: 08/02/2020] [Accepted: 08/03/2020] [Indexed: 12/11/2022]
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9
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Kaur R, Kaur R. Symptoms, risk factors, diagnosis and treatment of urinary tract infections. Postgrad Med J 2020; 97:803-812. [PMID: 33234708 DOI: 10.1136/postgradmedj-2020-139090] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2020] [Revised: 11/01/2020] [Accepted: 11/09/2020] [Indexed: 01/20/2023]
Abstract
Urinary tract infection (UTI) is a common microbial infection found in all ages and sexes which involves inflammation of the urinary tract. These infections can range from simple bladder inflammation, that is, cystitis, to severe cases of uroseptic shock. UTI ranks as the number 1 infection that leads to a prescription of antibiotics after a doctor's visit. These infections are sometimes distressing and even life threatening, and both males (12%) and females (40%) have at least one symptomatic UTI throughout their lives. Diagnostic failures in case of bacterial infections are the main contributing factor in improper use of antibiotics, delay in treatment and low survival rate in septic conditions. So, early diagnosis and appropriate therapy with antibiotics are the most significant requirements for preventing complicated UTI conditions such as urosepsis. This review article summarises the symptoms of the UTIs and the associated risk factors to it. The various conventional and recent diagnostic methods were also discussed in this review, along with treatment therapies with or without antibiotics.
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Affiliation(s)
- Rajanbir Kaur
- Department of Botanical and Environmental Sciences, Guru Nanak Dev University, Amritsar, Punjab, India
| | - Rajinder Kaur
- Department of Botanical and Environmental Sciences, Guru Nanak Dev University, Amritsar, Punjab, India
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10
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Gajamer VR, Bhattacharjee A, Paul D, Ingti B, Sarkar A, Kapil J, Singh AK, Pradhan N, Tiwari HK. High prevalence of carbapenemase, AmpC β-lactamase and aminoglycoside resistance genes in extended-spectrum β-lactamase-positive uropathogens from Northern India. J Glob Antimicrob Resist 2020; 20:197-203. [DOI: 10.1016/j.jgar.2019.07.029] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2018] [Revised: 06/13/2019] [Accepted: 07/29/2019] [Indexed: 10/26/2022] Open
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