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Fatima N, Khalid S, Rasool N, Imran M, Parveen B, Kanwal A, Irimie M, Ciurea CI. Approachable Synthetic Methodologies for Second-Generation β-Lactamase Inhibitors: A Review. Pharmaceuticals (Basel) 2024; 17:1108. [PMID: 39338273 PMCID: PMC11434895 DOI: 10.3390/ph17091108] [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: 06/25/2024] [Revised: 08/15/2024] [Accepted: 08/20/2024] [Indexed: 09/30/2024] Open
Abstract
Some antibiotics that are frequently employed are β-lactams. In light of the hydrolytic process of β-lactamase, found in Gram-negative bacteria, inhibitors of β-lactamase (BLIs) have been produced. Examples of first-generation β-lactamase inhibitors include sulbactam, clavulanic acid, and tazobactam. Many kinds of bacteria immune to inhibitors have appeared, and none cover all the β-lactamase classes. Various methods have been utilized to develop second-generation β-lactamase inhibitors possessing new structures and facilitate the formation of diazabicyclooctane (DBO), cyclic boronate, metallo-, and dual-nature β-lactamase inhibitors. This review describes numerous promising second-generation β-lactamase inhibitors, including vaborbactam, avibactam, and cyclic boronate serine-β-lactamase inhibitors. Furthermore, it covers developments and methods for synthesizing MβL (metallo-β-lactamase inhibitors), which are clinically effective, as well as the various dual-nature-based inhibitors of β-lactamases that have been developed. Several combinations are still only used in preclinical or clinical research, although only a few are currently used in clinics. This review comprises materials on the research progress of BLIs over the last five years. It highlights the ongoing need to produce new and unique BLIs to counter the appearance of multidrug-resistant bacteria. At present, second-generation BLIs represent an efficient and successful strategy.
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Affiliation(s)
- Noor Fatima
- Department of Chemistry, Government College University, Faisalabad 38000, Pakistan
| | - Shehla Khalid
- Department of Chemistry, Government College University, Faisalabad 38000, Pakistan
| | - Nasir Rasool
- Department of Chemistry, Government College University, Faisalabad 38000, Pakistan
| | - Muhammad Imran
- Chemistry Department, Faculty of Science, King Khalid University, P.O. Box 9004, Abha 61413, Saudi Arabia
| | - Bushra Parveen
- Department of Chemistry, Government College University, Faisalabad 38000, Pakistan
| | - Aqsa Kanwal
- Department of Chemistry, Government College University, Faisalabad 38000, Pakistan
| | - Marius Irimie
- Faculty of Medicine, Transylvania University of Brasov, 500036 Brasov, Romania
| | - Codrut Ioan Ciurea
- Faculty of Medicine, Transylvania University of Brasov, 500036 Brasov, Romania
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2
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Yan YH, Zhang TT, Li R, Wang SY, Wei LL, Wang XY, Zhu KR, Li SR, Liang GQ, Yang ZB, Yang LL, Qin S, Li GB. Discovery of 2-Aminothiazole-4-carboxylic Acids as Broad-Spectrum Metallo-β-lactamase Inhibitors by Mimicking Carbapenem Hydrolysate Binding. J Med Chem 2023; 66:13746-13767. [PMID: 37791640 DOI: 10.1021/acs.jmedchem.3c01189] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/05/2023]
Abstract
Metallo-β-lactamases (MBLs) are zinc-dependent enzymes capable of hydrolyzing all bicyclic β-lactam antibiotics, posing a great threat to public health. However, there are currently no clinically approved MBL inhibitors. Despite variations in their active sites, MBLs share a common catalytic mechanism with carbapenems, forming similar reaction species and hydrolysates. We here report the development of 2-aminothiazole-4-carboxylic acids (AtCs) as broad-spectrum MBL inhibitors by mimicking the anchor pharmacophore features of carbapenem hydrolysate binding. Several AtCs manifested potent activity against B1, B2, and B3 MBLs. Crystallographic analyses revealed a common binding mode of AtCs with B1, B2, and B3 MBLs, resembling binding observed in the MBL-carbapenem product complexes. AtCs restored Meropenem activity against MBL-producing isolates. In the murine sepsis model, AtCs exhibited favorable synergistic efficacy with Meropenem, along with acceptable pharmacokinetics and safety profiles. This work offers promising lead compounds and a structural basis for the development of potential drug candidates to combat MBL-mediated antimicrobial resistance.
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Affiliation(s)
- Yu-Hang Yan
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry and Sichuan Province, Sichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu 610041, China
| | - Ting-Ting Zhang
- School of Pharmaceutical Sciences, Institute of Drug Discovery and Development, Key Laboratory of Advanced Pharmaceutical Technology, Ministry of Education of China, Zhengzhou University, Zhengzhou 450001, China
| | - Rong Li
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry and Sichuan Province, Sichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu 610041, China
- College of Food and Bioengineering, Xihua University, Chengdu 610039, China
| | - Si-Yao Wang
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry and Sichuan Province, Sichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu 610041, China
| | - Liu-Liu Wei
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry and Sichuan Province, Sichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu 610041, China
| | - Xin-Yue Wang
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry and Sichuan Province, Sichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu 610041, China
| | - Kai-Rong Zhu
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry and Sichuan Province, Sichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu 610041, China
| | - Shan-Rui Li
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry and Sichuan Province, Sichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu 610041, China
| | - Guo-Qing Liang
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry and Sichuan Province, Sichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu 610041, China
| | - Zeng-Bao Yang
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry and Sichuan Province, Sichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu 610041, China
| | - Ling-Ling Yang
- College of Food and Bioengineering, Xihua University, Chengdu 610039, China
| | - Shangshang Qin
- School of Pharmaceutical Sciences, Institute of Drug Discovery and Development, Key Laboratory of Advanced Pharmaceutical Technology, Ministry of Education of China, Zhengzhou University, Zhengzhou 450001, China
| | - Guo-Bo Li
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry and Sichuan Province, Sichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu 610041, China
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Denakpo E, Naas T, Iorga BI. An updated patent review of metallo-β-lactamase inhibitors (2020-2023). Expert Opin Ther Pat 2023; 33:523-538. [PMID: 37737836 DOI: 10.1080/13543776.2023.2262763] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2023] [Accepted: 09/20/2023] [Indexed: 09/23/2023]
Abstract
INTRODUCTION Metallo-β-lactamases (MBLs) are enzymes produced by bacteria that confer resistance to most β-lactam antibiotics, including carbapenems, which have the broadest spectrum of activity. This resistance mechanism poses a significant threat to public health as it drastically reduces treatment options for severe bacterial infections. Developing effective inhibitors against MBLs is crucial to restore susceptibility to β-lactam antibiotics. AREAS COVERED This review aims to provide an updated analysis of patents describing novel MBL inhibitors and their potential therapeutic applications that were filed between January 2020 and May 2023. EXPERT OPINION Significant advancements were made in the development of selective MBL inhibitors with zinc-binding and zinc-chelating mechanisms of action. Dual inhibitors, targeting simultaneously both serine-β-lactamases (SBLs) and MBLs, represent an interesting alternative approach that is increasingly pertinent for the treatment of infections involving multiple β-lactamases from different Ambler classes. Most examples of MBL-specific inhibitors were focused on the treatment of MBL-mediated infections in Enterobacterales, where IMP-1 was a more difficult target compared with VIM-1 or NDM-1, and much less on Pseudomonas aeruginosa or Acinetobacter baumannii, which are more challenging to address.
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Affiliation(s)
- Elsa Denakpo
- Université Paris-Saclay, CNRS, Institut de Chimie des Substances Naturelles, Gif-sur-Yvette, France
| | - Thierry Naas
- Team ReSIST, INSERM U1184, School of Medicine Université Paris-Saclay, LabEx LERMIT, Le Kremlin-Bicêtre, France
- Bacteriology-Hygiene unit, Assistance Publique/Hopitaux de Paris, Bicêtre Hospital, Le Kremlin-Bicêtre, France
- French National Reference Center for Antibiotic Resistance: Carbapenemase-producing Enterobacterales, Le Kremlin-Bicêtre, France
| | - Bogdan I Iorga
- Université Paris-Saclay, CNRS, Institut de Chimie des Substances Naturelles, Gif-sur-Yvette, France
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4
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Legru A, Verdirosa F, Vo-Hoang Y, Tassone G, Vascon F, Thomas CA, Sannio F, Corsica G, Benvenuti M, Feller G, Coulon R, Marcoccia F, Devente SR, Bouajila E, Piveteau C, Leroux F, Deprez-Poulain R, Deprez B, Licznar-Fajardo P, Crowder MW, Cendron L, Pozzi C, Mangani S, Docquier JD, Hernandez JF, Gavara L. Optimization of 1,2,4-Triazole-3-thiones toward Broad-Spectrum Metallo-β-lactamase Inhibitors Showing Potent Synergistic Activity on VIM- and NDM-1-Producing Clinical Isolates. J Med Chem 2022; 65:16392-16419. [PMID: 36450011 DOI: 10.1021/acs.jmedchem.2c01257] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/02/2022]
Abstract
Metallo-β-lactamases (MBLs) contribute to the resistance of Gram-negative bacteria to carbapenems, last-resort antibiotics at hospital, and MBL inhibitors are urgently needed to preserve these important antibacterial drugs. Here, we describe a series of 1,2,4-triazole-3-thione-based inhibitors displaying an α-amino acid substituent, which amine was mono- or disubstituted by (hetero)aryl groups. Compounds disubstituted by certain nitrogen-containing heterocycles showed submicromolar activities against VIM-type enzymes and strong NDM-1 inhibition (Ki = 10-30 nM). Equilibrium dialysis, native mass spectrometry, isothermal calorimetry (ITC), and X-ray crystallography showed that the compounds inhibited both VIM-2 and NDM-1 at least partially by stripping the catalytic zinc ions. These inhibitors also displayed a very potent synergistic activity with meropenem (16- to 1000-fold minimum inhibitory concentration (MIC) reduction) against VIM-type- and NDM-1-producing ultraresistant clinical isolates, including Enterobacterales and Pseudomonas aeruginosa. Furthermore, selected compounds exhibited no or moderate toxicity toward HeLa cells, favorable absorption, distribution, metabolism, excretion (ADME) properties, and no or modest inhibition of several mammalian metalloenzymes.
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Affiliation(s)
- Alice Legru
- IBMM, CNRS, Univ Montpellier, ENSCM, 34000 Montpellier, France
| | - Federica Verdirosa
- Dipartimento di Biotecnologie Mediche, Università di Siena, 53100 Siena, Italy
| | - Yen Vo-Hoang
- IBMM, CNRS, Univ Montpellier, ENSCM, 34000 Montpellier, France
| | - Giusy Tassone
- Dipartimento di Biotecnologie, Chimica e Farmacia, Università di Siena, 53100 Siena, Italy
| | - Filippo Vascon
- Laboratory of Structural Biology, Department of Biology, University of Padua, 35121 Padova, Italy
| | - Caitlyn A Thomas
- Department of Chemistry and Biochemistry, Miami University, Oxford, Ohio 45056, United States
| | - Filomena Sannio
- Dipartimento di Biotecnologie Mediche, Università di Siena, 53100 Siena, Italy
| | - Giuseppina Corsica
- Dipartimento di Biotecnologie Mediche, Università di Siena, 53100 Siena, Italy
| | - Manuela Benvenuti
- Dipartimento di Biotecnologie, Chimica e Farmacia, Università di Siena, 53100 Siena, Italy
| | - Georges Feller
- Laboratoire de Biochimie, Centre d'Ingénierie des Protéines-InBioS, Université de Liège, Allée du 6 août B6, Sart-Tilman, B-4000 Liège, Belgium
| | - Rémi Coulon
- IBMM, CNRS, Univ Montpellier, ENSCM, 34000 Montpellier, France
| | - Francesca Marcoccia
- Dipartimento di Biotecnologie Mediche, Università di Siena, 53100 Siena, Italy
| | | | | | - Catherine Piveteau
- Drugs and Molecules for Living System, U1177, Inserm, Université de Lille, Faculté de Pharmacie, 59006 Lille, France
| | - Florence Leroux
- Drugs and Molecules for Living System, U1177, Inserm, Université de Lille, Faculté de Pharmacie, 59006 Lille, France
| | - Rebecca Deprez-Poulain
- Drugs and Molecules for Living System, U1177, Inserm, Université de Lille, Faculté de Pharmacie, 59006 Lille, France
| | - Benoît Deprez
- Drugs and Molecules for Living System, U1177, Inserm, Université de Lille, Faculté de Pharmacie, 59006 Lille, France
| | - Patricia Licznar-Fajardo
- HydroSciences Montpellier, UMR5151, Univ Montpellier, CNRS, IRD, CHU Montpellier, 34000 Montpellier, France
| | - Michael W Crowder
- Department of Chemistry and Biochemistry, Miami University, Oxford, Ohio 45056, United States
| | - Laura Cendron
- Laboratory of Structural Biology, Department of Biology, University of Padua, 35121 Padova, Italy
| | - Cecilia Pozzi
- Dipartimento di Biotecnologie, Chimica e Farmacia, Università di Siena, 53100 Siena, Italy
| | - Stefano Mangani
- Dipartimento di Biotecnologie, Chimica e Farmacia, Università di Siena, 53100 Siena, Italy
| | - Jean-Denis Docquier
- Dipartimento di Biotecnologie Mediche, Università di Siena, 53100 Siena, Italy.,Centre d'Ingénierie des Protéines-InBioS, Université de Liège, B-4000 Liège, Belgium
| | | | - Laurent Gavara
- IBMM, CNRS, Univ Montpellier, ENSCM, 34000 Montpellier, France
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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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Li R, Chen X, Zhou C, Dai QQ, Yang L. Recent advances in β-lactamase inhibitor chemotypes and inhibition modes. Eur J Med Chem 2022; 242:114677. [PMID: 35988449 DOI: 10.1016/j.ejmech.2022.114677] [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: 06/17/2022] [Revised: 08/09/2022] [Accepted: 08/09/2022] [Indexed: 11/26/2022]
Abstract
The effectiveness of β-lactam antibiotics is increasingly influenced by serine β-lactamases (SBLs) and metallo-β-lactamases (MBLs), which can hydrolyze β-lactam antibiotics. The development of effective β-lactamase inhibitors is an important direction to extend use of β-lactam antibiotics. Although six SBL inhibitors have been approved for clinical use, but no MBL inhibitors or MBL/SBL dual-action inhibitors are available so far. Broad-spectrum targeting clinically relevant MBLs and SBLs is currently desirable, while it is not easy to achieve such a purpose owing to structural and mechanistic differences between MBLs and SBLs. In this review, we summarized recent advances of inhibitor chemotypes targeting MBLs and SBLs and their inhibition mechanisms, particularly including lead discovery and structural optimization strategies, with the aim to provide useful information for future efforts to develop new MBL and SBL inhibitors.
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Affiliation(s)
- Rong Li
- College of Food and Bioengineering, Xihua University, Sichuan, 610039, PR China
| | - Xi Chen
- College of Food and Bioengineering, Xihua University, Sichuan, 610039, PR China
| | - Cong Zhou
- Key Laboratory of Drug Targeting and Drug Delivery System of Ministry of Education, West China School of Pharmacy, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, Collaborative Innovation Center of Biotherapy, Chengdu, 610041, PR China
| | - Qing-Qing Dai
- Key Laboratory of Drug Targeting and Drug Delivery System of Ministry of Education, West China School of Pharmacy, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, Collaborative Innovation Center of Biotherapy, Chengdu, 610041, PR China
| | - Lingling Yang
- College of Food and Bioengineering, Xihua University, Sichuan, 610039, PR China.
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Iqbal Z, Sun J, Yang H, Ji J, He L, Zhai L, Ji J, Zhou P, Tang D, Mu Y, Wang L, Yang Z. Recent Developments to Cope the Antibacterial Resistance via β-Lactamase Inhibition. Molecules 2022; 27:3832. [PMID: 35744953 PMCID: PMC9227086 DOI: 10.3390/molecules27123832] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2022] [Revised: 06/06/2022] [Accepted: 06/09/2022] [Indexed: 12/01/2022] Open
Abstract
Antibacterial resistance towards the β-lactam (BL) drugs is now ubiquitous, and there is a major global health concern associated with the emergence of new β-lactamases (BLAs) as the primary cause of resistance. In addition to the development of new antibacterial drugs, β-lactamase inhibition is an alternative modality that can be implemented to tackle this resistance channel. This strategy has successfully revitalized the efficacy of a number of otherwise obsolete BLs since the discovery of the first β-lactamase inhibitor (BLI), clavulanic acid. Over the years, β-lactamase inhibition research has grown, leading to the introduction of new synthetic inhibitors, and a few are currently in clinical trials. Of note, the 1, 6-diazabicyclo [3,2,1]octan-7-one (DBO) scaffold gained the attention of researchers around the world, which finally culminated in the approval of two BLIs, avibactam and relebactam, which can successfully inhibit Ambler class A, C, and D β-lactamases. Boronic acids have shown promise in coping with Ambler class B β-lactamases in recent research, in addition to classes A, C, and D with the clinical use of vaborbactam. This review focuses on the further developments in the synthetic strategies using DBO as well as boronic acid derivatives. In addition, various other potential serine- and metallo- β-lactamases inhibitors that have been developed in last few years are discussed briefly as well. Furthermore, binding interactions of the representative inhibitors have been discussed based on the crystal structure data of inhibitor-enzyme complex, published in the literature.
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Affiliation(s)
- Zafar Iqbal
- Ningxia Centre of Organic Synthesis and Engineering Technology, Ningxia Academy of Agriculture and Forestry Sciences, No. 590, Huanghe East Road, Jinfeng District, Yinchuan 750002, China; (H.Y.); (J.J.); (L.H.); (L.Z.); (J.J.); (P.Z.); (D.T.); (Y.M.); (L.W.)
| | - Jian Sun
- Ningxia Centre of Organic Synthesis and Engineering Technology, Ningxia Academy of Agriculture and Forestry Sciences, No. 590, Huanghe East Road, Jinfeng District, Yinchuan 750002, China; (H.Y.); (J.J.); (L.H.); (L.Z.); (J.J.); (P.Z.); (D.T.); (Y.M.); (L.W.)
| | | | | | | | | | | | | | | | | | | | - Zhixiang Yang
- Ningxia Centre of Organic Synthesis and Engineering Technology, Ningxia Academy of Agriculture and Forestry Sciences, No. 590, Huanghe East Road, Jinfeng District, Yinchuan 750002, China; (H.Y.); (J.J.); (L.H.); (L.Z.); (J.J.); (P.Z.); (D.T.); (Y.M.); (L.W.)
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8
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The development of New Delhi metallo-β-lactamase-1 inhibitors since 2018. Microbiol Res 2022; 261:127079. [DOI: 10.1016/j.micres.2022.127079] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2022] [Revised: 04/22/2022] [Accepted: 05/23/2022] [Indexed: 11/21/2022]
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9
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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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