1
|
Lee JH, Kim SG, Jang KM, Shin K, Jin H, Kim DW, Jeong BC, Lee SH. Elucidation of critical chemical moieties of metallo-β-lactamase inhibitors and prioritisation of target metallo-β-lactamases. J Enzyme Inhib Med Chem 2024; 39:2318830. [PMID: 38488135 PMCID: PMC10946278 DOI: 10.1080/14756366.2024.2318830] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2023] [Accepted: 02/07/2024] [Indexed: 03/19/2024] Open
Abstract
The urgent demand for effective countermeasures against metallo-β-lactamases (MBLs) necessitates development of novel metallo-β-lactamase inhibitors (MBLIs). This study is dedicated to identifying critical chemical moieties within previously developed MBLIs, and critical MBLs should serve as the target in MBLI evaluations. Using the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA), a systematic literature analysis was conducted, and the NCBI RefSeq genome database was exploited to access the abundance profile and taxonomic distribution of MBLs and their variant types. Through the implementation of two distinct systematic approaches, we elucidated critical chemical moieties of MBLIs, providing pivotal information for rational drug design. We also prioritised MBLs and their variant types, highlighting the imperative need for comprehensive testing to ensure the potency and efficacy of the newly developed MBLIs. This approach contributes valuable information to advance the field of antimicrobial drug discovery.
Collapse
Affiliation(s)
- Jung Hun Lee
- National Leading Research Laboratory of Drug Resistance Proteomics, Department of Biological Sciences, Myongji University, Yongin, Republic of Korea
| | - Sang-Gyu Kim
- Division of Life Sciences, Jeonbuk National University, Jeonju, Republic of Korea
| | - Kyung-Min Jang
- National Leading Research Laboratory of Drug Resistance Proteomics, Department of Biological Sciences, Myongji University, Yongin, Republic of Korea
| | - Kyoungmin Shin
- National Leading Research Laboratory of Drug Resistance Proteomics, Department of Biological Sciences, Myongji University, Yongin, Republic of Korea
| | - Hyeonku Jin
- National Leading Research Laboratory of Drug Resistance Proteomics, Department of Biological Sciences, Myongji University, Yongin, Republic of Korea
| | - Dae-Wi Kim
- Division of Life Sciences, Jeonbuk National University, Jeonju, Republic of Korea
| | - Byeong Chul Jeong
- National Leading Research Laboratory of Drug Resistance Proteomics, Department of Biological Sciences, Myongji University, Yongin, Republic of Korea
| | - Sang Hee Lee
- National Leading Research Laboratory of Drug Resistance Proteomics, Department of Biological Sciences, Myongji University, Yongin, Republic of Korea
| |
Collapse
|
2
|
Sychantha D, Chen X, Koteva K, Prehna G, Wright GD. Targeting bacterial nickel transport with aspergillomarasmine A suppresses virulence-associated Ni-dependent enzymes. Nat Commun 2024; 15:4036. [PMID: 38740750 DOI: 10.1038/s41467-024-48232-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2023] [Accepted: 04/23/2024] [Indexed: 05/16/2024] Open
Abstract
Microbial Ni2+ homeostasis underpins the virulence of several clinical pathogens. Ni2+ is an essential cofactor in urease and [NiFe]-hydrogenases involved in colonization and persistence. Many microbes produce metallophores to sequester metals necessary for their metabolism and starve competing neighboring organisms. The fungal metallophore aspergillomarasmine A (AMA) shows narrow specificity for Zn2+, Ni2+, and Co2+. Here, we show that this specificity allows AMA to block the uptake of Ni2+ and attenuate bacterial Ni-dependent enzymes, offering a potential strategy for reducing virulence. Bacterial exposure to AMA perturbs H2 metabolism, ureolysis, struvite crystallization, and biofilm formation and shows efficacy in a Galleria mellonella animal infection model. The inhibition of Ni-dependent enzymes was aided by Zn2+, which complexes with AMA and competes with the native nickelophore for the uptake of Ni2+. Biochemical analyses demonstrated high-affinity binding of AMA-metal complexes to NikA, the periplasmic substrate-binding protein of the Ni2+ uptake system. Structural examination of NikA in complex with Ni-AMA revealed that the coordination geometry of Ni-AMA mimics the native ligand, Ni-(L-His)2, providing a structural basis for binding AMA-metal complexes. Structure-activity relationship studies of AMA identified regions of the molecule that improve NikA affinity and offer potential routes for further developing this compound as an anti-virulence agent.
Collapse
Affiliation(s)
- David Sychantha
- David Braley Centre for Antibiotic Discovery, McMaster University, Hamilton, ON, Canada
- M.G. DeGroote Institute for Infectious Disease Research, McMaster University, Hamilton, ON, Canada
- Department of Biochemistry and Biomedical Sciences, McMaster University, Hamilton, ON, Canada
- Department of Chemistry, University of Waterloo, Waterloo, ON, Canada
| | - Xuefei Chen
- David Braley Centre for Antibiotic Discovery, McMaster University, Hamilton, ON, Canada
- M.G. DeGroote Institute for Infectious Disease Research, McMaster University, Hamilton, ON, Canada
- Department of Biochemistry and Biomedical Sciences, McMaster University, Hamilton, ON, Canada
| | - Kalinka Koteva
- David Braley Centre for Antibiotic Discovery, McMaster University, Hamilton, ON, Canada
- M.G. DeGroote Institute for Infectious Disease Research, McMaster University, Hamilton, ON, Canada
- Department of Biochemistry and Biomedical Sciences, McMaster University, Hamilton, ON, Canada
| | - Gerd Prehna
- Department of Microbiology, University of Manitoba, Winnipeg, MB, Canada
| | - Gerard D Wright
- David Braley Centre for Antibiotic Discovery, McMaster University, Hamilton, ON, Canada.
- M.G. DeGroote Institute for Infectious Disease Research, McMaster University, Hamilton, ON, Canada.
- Department of Biochemistry and Biomedical Sciences, McMaster University, Hamilton, ON, Canada.
| |
Collapse
|
3
|
Moussa AY. Endophytes: a uniquely tailored source of potential antibiotic adjuvants. Arch Microbiol 2024; 206:207. [PMID: 38581477 PMCID: PMC10998792 DOI: 10.1007/s00203-024-03891-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2023] [Revised: 02/06/2024] [Accepted: 02/08/2024] [Indexed: 04/08/2024]
Abstract
Multidrug microbial resistance is risking an annual loss of more than 10 million people' lives by 2050. Solutions include the rational use of antibiotics and the use of drugs that reduce resistance or completely obliterate them. Here endophytes come to play due to their high-yield production and inherent nature to produce antimicrobial molecules. Around 40%, 45% and 17% of antibacterial agents were obtained from fungi, actinomycetes, and bacteria, respectively, whose secondary metabolites revealed effectiveness against resistant microbes such as MRSA, MRSE, and Shigella flexneri. Endophyte's role was not confined to bactericidal effect but extended to other mechanisms against MDR microbes, among which was the adjuvant role or the "magic bullets". Scarce focus was given to antibiotic adjuvants, and many laboratories today just screen for the antimicrobial activity without considering combinations with traditional antibiotics, which means real loss of promising resistance combating molecules. While some examples of synthetic adjuvants were introduced in the last decade, the number is still far from covering the disused antibiotics and restoring them back to clinical use. The data compiled in this article demonstrated the significance of quorum sensing as a foreseen mechanism for adjuvants from endophytes secondary metabolites, which call for urgent in-depth studies of their molecular mechanisms. This review, comprehensively and for the first time, sheds light on the significance of endophytes secondary metabolites in solving AMR problem as AB adjuvants.
Collapse
Affiliation(s)
- Ashaimaa Y Moussa
- Department of Pharmacognosy, Faculty of Pharmacy, Ain-Shams University, African Union Organization Street, Abbassia, Cairo, 11566, Egypt.
| |
Collapse
|
4
|
Wachino JI, Jin W, Norizuki C, Kimura K, Tsuji M, Kurosaki H, Arakawa Y. Hydroxyhexylitaconic acids as potent IMP-type metallo-β-lactamase inhibitors for controlling carbapenem resistance in Enterobacterales. Microbiol Spectr 2024; 12:e0234423. [PMID: 38315122 PMCID: PMC10913484 DOI: 10.1128/spectrum.02344-23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2023] [Accepted: 12/06/2023] [Indexed: 02/07/2024] Open
Abstract
Metallo-β-lactamases (MBLs) represent one of the main causes of carbapenem resistance in the order Enterobacterales. To combat MBL-producing carbapenem-resistant Enterobacterales, the development of MBL inhibitors can restore carbapenem efficacy for such resistant bacteria. Microbial natural products are a promising source of attractive seed compounds for the development of antimicrobial agents. Here, we report that hydroxyhexylitaconic acids (HHIAs) produced by a member of the genus Aspergillus can suppress carbapenem resistance conferred by MBLs, particularly IMP (imipenemase)-type MBLs. HHIAs were found to be competitive inhibitors with micromolar orders of magnitude against IMP-1 and showed weak inhibitory activity toward VIM-2, while no inhibitory activity against NDM-1 was observed despite the high dosage. The elongated methylene chains of HHIAs seem to play a crucial role in exerting inhibitory activity because itaconic acid, a structural analog without long methylene chains, did not show inhibitory activity against IMP-1. The addition of HHIAs restored meropenem and imipenem efficacy to satisfactory clinical levels against IMP-type MBL-producing Escherichia coli and Klebsiella pneumoniae clinical isolates. Unlike EDTA and Aspergillomarasmine A, HHIAs did not cause the loss of zinc ions from the active site, resulting in the structural instability of MBLs. X-ray crystallography and in silico docking simulation analyses revealed that two neighboring carboxylates of HHIAs coordinated with two zinc ions in the active sites of VIM-2 and IMP-1, which formed a key interaction observed in MBL inhibitors. Our results indicated that HHIAs are promising for initiating the design of potent inhibitors of IMP-type MBLs.IMPORTANCEThe number and type of metallo-β-lactamase (MΒL) are increasing over time. Carbapenem resistance conferred by MΒL is a significant threat to our antibiotic regimen, and the development of MΒL inhibitors is urgently required to restore carbapenem efficacy. Microbial natural products have served as important sources for developing antimicrobial agents targeting pathogenic bacteria since the discovery of antibiotics in the mid-20th century. MΒL inhibitors derived from microbial natural products are still rare compared to those derived from chemical compound libraries. Hydroxyhexylitaconic acids (HHIAs) produced by members of the genus Aspergillus have potent inhibitory activity against clinically relevant IMP-type MBL. HHIAs may be good lead compounds for the development of MBL inhibitors applicable for controlling carbapenem resistance in IMP-type MBL-producing Enterobacterales.
Collapse
Affiliation(s)
- Jun-ichi Wachino
- Department of Medical Technology, Faculty of Medical Sciences, Shubun University, Ichinomiya, Aichi, Japan
- Department of Bacteriology, Nagoya University Graduate School of Medicine, Nagoya, Aichi, Japan
| | - Wanchun Jin
- College of Pharmacy, Kinjo Gakuin University, Nagoya, Aichi, Japan
| | - Chihiro Norizuki
- Department of Medical Technology, Faculty of Medical Sciences, Shubun University, Ichinomiya, Aichi, Japan
| | - Kouji Kimura
- Department of Bacteriology, Nagoya University Graduate School of Medicine, Nagoya, Aichi, Japan
| | | | | | - Yoshichika Arakawa
- Department of Medical Technology, Faculty of Medical Sciences, Shubun University, Ichinomiya, Aichi, Japan
- Department of Bacteriology, Nagoya University Graduate School of Medicine, Nagoya, Aichi, Japan
| |
Collapse
|
5
|
Jacobs LMC, Consol P, Chen Y. Drug Discovery in the Field of β-Lactams: An Academic Perspective. Antibiotics (Basel) 2024; 13:59. [PMID: 38247618 PMCID: PMC10812508 DOI: 10.3390/antibiotics13010059] [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: 11/29/2023] [Revised: 12/21/2023] [Accepted: 12/23/2023] [Indexed: 01/23/2024] Open
Abstract
β-Lactams are the most widely prescribed class of antibiotics that inhibit penicillin-binding proteins (PBPs), particularly transpeptidases that function in peptidoglycan synthesis. A major mechanism of antibiotic resistance is the production of β-lactamase enzymes, which are capable of hydrolyzing β-lactam antibiotics. There have been many efforts to counter increasing bacterial resistance against β-lactams. These studies have mainly focused on three areas: discovering novel inhibitors against β-lactamases, developing new β-lactams less susceptible to existing resistance mechanisms, and identifying non-β-lactam inhibitors against cell wall transpeptidases. Drug discovery in the β-lactam field has afforded a range of research opportunities for academia. In this review, we summarize the recent new findings on both β-lactamases and cell wall transpeptidases because these two groups of enzymes are evolutionarily and functionally connected. Many efforts to develop new β-lactams have aimed to inhibit both transpeptidases and β-lactamases, while several promising novel β-lactamase inhibitors have shown the potential to be further developed into transpeptidase inhibitors. In addition, the drug discovery progress against each group of enzymes is presented in three aspects: understanding the targets, screening methodology, and new inhibitor chemotypes. This is to offer insights into not only the advancement in this field but also the challenges, opportunities, and resources for future research. In particular, cyclic boronate compounds are now capable of inhibiting all classes of β-lactamases, while the diazabicyclooctane (DBO) series of small molecules has led to not only new β-lactamase inhibitors but potentially a new class of antibiotics by directly targeting PBPs. With the cautiously optimistic successes of a number of new β-lactamase inhibitor chemotypes and many questions remaining to be answered about the structure and function of cell wall transpeptidases, non-β-lactam transpeptidase inhibitors may usher in the next exciting phase of drug discovery in this field.
Collapse
Affiliation(s)
| | | | - Yu Chen
- Department of Molecular Medicine, Morsani College of Medicine, University of South Florida, Tampa, FL 33612, USA; (L.M.C.J.); (P.C.)
| |
Collapse
|
6
|
Azman AA, Leow ATC, Noor NDM, Noor SAM, Latip W, Ali MSM. Worldwide trend discovery of structural and functional relationship of metallo-β-lactamase for structure-based drug design: A bibliometric evaluation and patent analysis. Int J Biol Macromol 2024; 256:128230. [PMID: 38013072 DOI: 10.1016/j.ijbiomac.2023.128230] [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: 05/25/2023] [Revised: 10/11/2023] [Accepted: 11/16/2023] [Indexed: 11/29/2023]
Abstract
Metallo-β-lactamase (MBL) is an enzyme produced by clinically important bacteria that can inactivate many commonly used antibiotics, making them a significant concern in treating bacterial infections and the risk of having high antibiotic resistance issues among the community. This review presents a bibliometric and patent analysis of MBL worldwide research trend based on the Scopus and World Intellectual Property Organization databases in 2013-2022. Based on the keywords related to MBL in the article title, abstract, and keywords, 592 research articles were retrieved for further analysis using various tools such as Microsoft Excel to determine the frequency analysis, VOSviewer for bibliometric networks visualization, and Harzing's Publish or Perish for citation metrics analysis. Standard bibliometric parameters were analysed to evaluate the field's research trend, such as the growth of publications, topographical distribution, top subject area, most relevant journal, top cited documents, most relevant authors, and keyword trend analysis. Within 10 years, MBL discovery has shown a steady and continuous growth of interest among the community of researchers. United States of America, China, and the United Kingdom are the top 3 countries contribute high productivity to the field. The patent analysis also shows several impactful filed patents, indicating the significance of development research on the structural and functional relationship of MBL for an effective structure-based drug design (SBDD). Developing new MBL inhibitors using SBDD could help address the research gap and provide new successful therapeutic options for treating MBL-producing bacterial infections.
Collapse
Affiliation(s)
- Ameera Aisyah Azman
- Enzyme and Microbial Technology Research Center, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, Serdang, Selangor 43400, Malaysia; Department of Biochemistry, Faculty of Biotechnology and Biomolecular Science, Universiti Putra Malaysia, Serdang, Selangor 43400, Malaysia
| | - Adam Thean Chor Leow
- Enzyme and Microbial Technology Research Center, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, Serdang, Selangor 43400, Malaysia; Department of Cell and Molecular Biology, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, Serdang, Selangor 43400, Malaysia
| | - Noor Dina Muhd Noor
- Enzyme and Microbial Technology Research Center, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, Serdang, Selangor 43400, Malaysia; Department of Biochemistry, Faculty of Biotechnology and Biomolecular Science, Universiti Putra Malaysia, Serdang, Selangor 43400, Malaysia
| | - Siti Aminah Mohd Noor
- Center for Defence Foundation Studies, National Defence University of Malaysia, Kem Perdana Sungai Besi, Kuala Lumpur 57000, Malaysia
| | - Wahhida Latip
- Enzyme and Microbial Technology Research Center, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, Serdang, Selangor 43400, Malaysia
| | - Mohd Shukuri Mohamad Ali
- Enzyme and Microbial Technology Research Center, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, Serdang, Selangor 43400, Malaysia; Department of Biochemistry, Faculty of Biotechnology and Biomolecular Science, Universiti Putra Malaysia, Serdang, Selangor 43400, Malaysia.
| |
Collapse
|
7
|
Guo Y, Liu H, Yang M, Ding R, Gao Y, Niu X, Deng X, Wang J, Feng H, Qiu J. Novel metallo-β-lactamases inhibitors restore the susceptibility of carbapenems to New Delhi metallo-lactamase-1 (NDM-1)-harbouring bacteria. Br J Pharmacol 2024; 181:54-69. [PMID: 37539785 DOI: 10.1111/bph.16210] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2022] [Revised: 06/24/2023] [Accepted: 07/20/2023] [Indexed: 08/05/2023] Open
Abstract
BACKGROUND AND PURPOSE The production of metallo-β-lactamases is a major mechanisms adopted by bacterial pathogens to resist carbapenems. Repurposing approved drugs to restore the efficacy of carbapenems represents an efficient and cost-effective approach to fight infections caused by carbapenem resistant pathogens. EXPERIMENTAL APPROACH The nitrocefin hydrolysis assay was employed to screen potential New Delhi metallo-lactamase-1 (NDM-1) inhibitors from a commercially available U.S. Food and Drug Administration (FDA) approved drug library. The mechanism of inhibition was clarified by metal restoration, inductively coupled plasma mass spectrometry (ICP-MS) and molecular dynamics simulation. The in vitro synergistic antibacterial effect of the identified inhibitors with meropenem was determined by the checkerboard minimum inhibitory concentration (MIC) assay, time-dependent killing assay and combined disc test. Three mouse infection models were used to further evaluate the in vivo therapeutic efficacy of combined therapy. KEY RESULTS Twelve FDA-approved compounds were initially screened to inhibit the ability of NDM-1 to hydrolyse nitrocefin. Among these compounds, dexrazoxane, embelin, candesartan cilexetil and nordihydroguaiaretic acid were demonstrated to inhibit all tested metallo-β-lactamases and showed an in vitro synergistic bactericidal effect with meropenem against metallo-β-lactamases-producing bacteria. Dexrazoxane, embelin and candesartan cilexetil are metal ion chelating agents, while the inhibition of NDM-1 by nordihydroguaiaretic acid involves its direct binding to the active region of NDM-1. Furthermore, these four drugs dramatically rescued the treatment efficacy of meropenem in three infection models. CONCLUSIONS AND IMPLICATIONS Our observations indicated that dexrazoxane, embelin, candesartan cilexetil and nordihydroguaiaretic acid are promising carbapenem adjuvants against metallo-β-lactamases-positive carbapenem resistant bacterial pathogens.
Collapse
Affiliation(s)
- Yan Guo
- State Key Laboratory for Diagnosis and Treatment of Severe Zoonotic Infectious Diseases, Key Laboratory for Zoonosis Research of the Ministry of Education, College of Veterinary Medicine, Jilin University, Changchun, China
| | - Hongtao Liu
- State Key Laboratory for Diagnosis and Treatment of Severe Zoonotic Infectious Diseases, Key Laboratory for Zoonosis Research of the Ministry of Education, College of Veterinary Medicine, Jilin University, Changchun, China
| | - Mengge Yang
- State Key Laboratory for Diagnosis and Treatment of Severe Zoonotic Infectious Diseases, Key Laboratory for Zoonosis Research of the Ministry of Education, College of Veterinary Medicine, Jilin University, Changchun, China
| | - Rui Ding
- State Key Laboratory for Diagnosis and Treatment of Severe Zoonotic Infectious Diseases, Key Laboratory for Zoonosis Research of the Ministry of Education, College of Veterinary Medicine, Jilin University, Changchun, China
| | - Yawen Gao
- College of Food Science and Engineering, Jilin University, Changchun, Jilin, China
| | - Xiaodi Niu
- College of Food Science and Engineering, Jilin University, Changchun, Jilin, China
| | - Xuming Deng
- State Key Laboratory for Diagnosis and Treatment of Severe Zoonotic Infectious Diseases, Key Laboratory for Zoonosis Research of the Ministry of Education, College of Veterinary Medicine, Jilin University, Changchun, China
| | - Jianfeng Wang
- State Key Laboratory for Diagnosis and Treatment of Severe Zoonotic Infectious Diseases, Key Laboratory for Zoonosis Research of the Ministry of Education, College of Veterinary Medicine, Jilin University, Changchun, China
| | - Haihua Feng
- State Key Laboratory for Diagnosis and Treatment of Severe Zoonotic Infectious Diseases, Key Laboratory for Zoonosis Research of the Ministry of Education, College of Veterinary Medicine, Jilin University, Changchun, China
| | - Jiazhang Qiu
- State Key Laboratory for Diagnosis and Treatment of Severe Zoonotic Infectious Diseases, Key Laboratory for Zoonosis Research of the Ministry of Education, College of Veterinary Medicine, Jilin University, Changchun, China
| |
Collapse
|
8
|
Reddy N, Girdhari L, Shungube M, Gouws AC, Peters BK, Rajbongshi KK, Baijnath S, Mdanda S, Ntombela T, Arumugam T, Bester LA, Singh SD, Chuturgoon A, Arvidsson PI, Maguire GEM, Kruger HG, Govender T, Naicker T. Neutralizing Carbapenem Resistance by Co-Administering Meropenem with Novel β-Lactam-Metallo-β-Lactamase Inhibitors. Antibiotics (Basel) 2023; 12:antibiotics12040633. [PMID: 37106995 PMCID: PMC10135050 DOI: 10.3390/antibiotics12040633] [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: 02/26/2023] [Revised: 03/17/2023] [Accepted: 03/20/2023] [Indexed: 04/29/2023] Open
Abstract
Virulent Enterobacterale strains expressing serine and metallo-β-lactamases (MBL) genes have emerged responsible for conferring resistance to hard-to-treat infectious diseases. One strategy that exists is to develop β-lactamase inhibitors to counter this resistance. Currently, serine β-lactamase inhibitors (SBLIs) are in therapeutic use. However, an urgent global need for clinical metallo-β-lactamase inhibitors (MBLIs) has become dire. To address this problem, this study evaluated BP2, a novel beta-lactam-derived β-lactamase inhibitor, co-administered with meropenem. According to the antimicrobial susceptibility results, BP2 potentiates the synergistic activity of meropenem to a minimum inhibitory concentration (MIC) of ≤1 mg/L. In addition, BP2 is bactericidal over 24 h and safe to administer at the selected concentrations. Enzyme inhibition kinetics showed that BP2 had an apparent inhibitory constant (Kiapp) of 35.3 µM and 30.9 µM against New Delhi Metallo-β-lactamase (NDM-1) and Verona Integron-encoded Metallo-β-lactamase (VIM-2), respectively. BP2 did not interact with glyoxylase II enzyme up to 500 µM, indicating specific (MBL) binding. In a murine infection model, BP2 co-administered with meropenem was efficacious, observed by the >3 log10 reduction in K. pneumoniae NDM cfu/thigh. Given the promising pre-clinical results, BP2 is a suitable candidate for further research and development as an (MBLI).
Collapse
Affiliation(s)
- Nakita Reddy
- Catalysis and Peptide Research Unit, University of KwaZulu-Natal, Durban 4001, South Africa
| | - Letisha Girdhari
- Catalysis and Peptide Research Unit, University of KwaZulu-Natal, Durban 4001, South Africa
| | - Mbongeni Shungube
- Catalysis and Peptide Research Unit, University of KwaZulu-Natal, Durban 4001, South Africa
| | - Arnoldus C Gouws
- Catalysis and Peptide Research Unit, University of KwaZulu-Natal, Durban 4001, South Africa
| | - Byron K Peters
- Catalysis and Peptide Research Unit, University of KwaZulu-Natal, Durban 4001, South Africa
| | - Kamal K Rajbongshi
- Catalysis and Peptide Research Unit, University of KwaZulu-Natal, Durban 4001, South Africa
| | - Sooraj Baijnath
- Catalysis and Peptide Research Unit, University of KwaZulu-Natal, Durban 4001, South Africa
- School of Physiology, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg 2020, South Africa
| | - Sipho Mdanda
- Catalysis and Peptide Research Unit, University of KwaZulu-Natal, Durban 4001, South Africa
| | - Thandokuhle Ntombela
- Catalysis and Peptide Research Unit, University of KwaZulu-Natal, Durban 4001, South Africa
| | - Thilona Arumugam
- School of Laboratory Medicine and Medical Sciences, College of Health Sciences, University of KwaZulu-Natal, Durban 4000, South Africa
| | - Linda A Bester
- School of Laboratory Medicine and Medical Sciences, College of Health Sciences, University of KwaZulu-Natal, Durban 4000, South Africa
| | - Sanil D Singh
- Department of Pharmaceutical Sciences, University of KwaZulu-Natal, Westville Campus, Durban 3629, South Africa
| | - Anil Chuturgoon
- School of Laboratory Medicine and Medical Sciences, College of Health Sciences, University of KwaZulu-Natal, Durban 4000, South Africa
| | - Per I Arvidsson
- Catalysis and Peptide Research Unit, University of KwaZulu-Natal, Durban 4001, South Africa
- Science for Life Laboratory, Drug Discovery & Development Platform & Division of Translational Medicine and Chemical Biology, Department of Medical Biochemistry and Biophysics, Karolinska Institutet, 17177 Stockholm, Sweden
| | - Glenn E M Maguire
- Catalysis and Peptide Research Unit, University of KwaZulu-Natal, Durban 4001, South Africa
- School of Chemistry and Physics, University of KwaZulu-Natal, Durban 4001, South Africa
| | - Hendrik G Kruger
- Catalysis and Peptide Research Unit, University of KwaZulu-Natal, Durban 4001, South Africa
| | - Thavendran Govender
- Department of Chemistry, University of Zululand, Private Bag X1001, KwaDlangezwa 3886, South Africa
| | - Tricia Naicker
- Catalysis and Peptide Research Unit, University of KwaZulu-Natal, Durban 4001, South Africa
| |
Collapse
|
9
|
Micelli C, Dai Y, Raustad N, Isberg RR, Dowson CG, Lloyd AJ, Geisinger E, Crow A, Roper DI. A conserved zinc-binding site in Acinetobacter baumannii PBP2 required for elongasome-directed bacterial cell shape. Proc Natl Acad Sci U S A 2023; 120:e2215237120. [PMID: 36787358 PMCID: PMC9974482 DOI: 10.1073/pnas.2215237120] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2022] [Accepted: 01/09/2023] [Indexed: 02/15/2023] Open
Abstract
Acinetobacter baumannii is a gram-negative bacterial pathogen that causes challenging nosocomial infections. β-lactam targeting of penicillin-binding protein (PBP)-mediated cell wall peptidoglycan (PG) formation is a well-established antimicrobial strategy. Exposure to carbapenems or zinc (Zn)-deprived growth conditions leads to a rod-to-sphere morphological transition in A. baumannii, an effect resembling that caused by deficiency in the RodA-PBP2 PG synthesis complex required for cell wall elongation. While it is recognized that carbapenems preferentially acylate PBP2 in A. baumannii and therefore block the transpeptidase function of the RodA-PBP2 system, the molecular details underpinning cell wall elongation inhibition upon Zn starvation remain undefined. Here, we report the X-ray crystal structure of A. baumannii PBP2, revealing an unexpected Zn coordination site in the transpeptidase domain required for protein stability. Mutations in the Zn-binding site of PBP2 cause a loss of bacterial rod shape and increase susceptibility to β-lactams, therefore providing a direct rationale for cell wall shape maintenance and Zn homeostasis in A. baumannii. Furthermore, the Zn-coordinating residues are conserved in various β- and γ-proteobacterial PBP2 orthologs, consistent with a widespread Zn-binding requirement for function that has been previously unknown. Due to the emergence of resistance to virtually all marketed antibiotic classes, alternative or complementary antimicrobial strategies need to be explored. These findings offer a perspective for dual inhibition of Zn-dependent PG synthases and metallo-β-lactamases by metal chelating agents, considered the most sought-after adjuvants to restore β-lactam potency against gram-negative bacteria.
Collapse
Affiliation(s)
- Carmina Micelli
- School of Life Sciences, University of Warwick, CoventryCV4 7AL, United Kingdom
| | - Yunfei Dai
- Department of Biology, Northeastern University, Boston, MA02115
| | - Nicole Raustad
- Department of Biology, Northeastern University, Boston, MA02115
| | - Ralph R. Isberg
- Department of Molecular Biology and Microbiology, Tufts University School of Medicine, Boston, MA02111
| | | | - Adrian J. Lloyd
- School of Life Sciences, University of Warwick, CoventryCV4 7AL, United Kingdom
| | | | - Allister Crow
- School of Life Sciences, University of Warwick, CoventryCV4 7AL, United Kingdom
| | - David I. Roper
- School of Life Sciences, University of Warwick, CoventryCV4 7AL, United Kingdom
| |
Collapse
|
10
|
Abou-assy RS, Aly MM, Amasha RH, Jastaniah S, Alammari F, Shamrani M. Carbapenem Resistance Mechanisms, Carbapenemase Genes Dissemination , and Laboratory Detection Methods: A Review. INTERNATIONAL JOURNAL OF PHARMACEUTICAL RESEARCH AND ALLIED SCIENCES 2023. [DOI: 10.51847/wqutf4vfuo] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
|
11
|
Li X, Zhao J, Zhang B, Duan X, Jiao J, Wu W, Zhou Y, Wang H. Drug development concerning metallo-β-lactamases in gram-negative bacteria. Front Microbiol 2022; 13:959107. [PMID: 36187949 PMCID: PMC9520474 DOI: 10.3389/fmicb.2022.959107] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2022] [Accepted: 08/09/2022] [Indexed: 11/13/2022] Open
Abstract
β-Lactams have been a clinical focus since their emergence and indeed act as a powerful tool to combat severe bacterial infections, but their effectiveness is threatened by drug resistance in bacteria, primarily by the production of serine- and metallo-β-lactamases. Although once of less clinical relevance, metallo-β-lactamases are now increasingly threatening. The rapid dissemination of resistance mediated by metallo-β-lactamases poses an increasing challenge to public health worldwide and comprises most existing antibacterial chemotherapies. Regrettably, there have been no clinically available inhibitors of metallo-β-lactamases until now. To cope with this unique challenge, researchers are exploring multidimensional strategies to combat metallo-β-lactamases. Several studies have been conducted to develop new drug candidates or calibrate already available drugs against metallo-β-lactamases. To provide an overview of this field and inspire more researchers to explore it further, we outline some promising candidates targeting metallo-β-lactamase producers, with a focus on Escherichia coli, Klebsiella pneumoniae, Pseudomonas aeruginosa, and Acinetobacter baumannii. Promising candidates in this review are composed of new antibacterial drugs, non-antibacterial drugs, antimicrobial peptides, natural products, and zinc chelators, as well as their combinations with existing antibiotics. This review may provide ideas and insight for others to explore candidate metallo-β-lactamases as well as promote the improvement of existing data to obtain further convincing evidence.
Collapse
Affiliation(s)
- Xiuyun Li
- Maternal and Child Health Development Research Center, Shandong Provincial Maternal and Child Health Care Hospital, Jinan, China
| | - Jing Zhao
- Pharmaceutical Department, Shandong Provincial Taishan Hospital, Taian, China
| | - Bin Zhang
- Department of Ophthalmology, Shandong Provincial Maternal and Child Health Care Hospital, Jinan, China
| | - Xuexia Duan
- Physical Examination Center, Shandong Provincial Maternal and Child Health Care Hospital, Jinan, China
| | - Jin Jiao
- Department of Clinical Laboratory, Shandong Provincial Maternal and Child Health Care Hospital, Jinan, China
| | - Weiwei Wu
- Department of Clinical Laboratory, Shandong Provincial Maternal and Child Health Care Hospital, Jinan, China
| | - Yuxia Zhou
- Department of Clinical Laboratory, Shandong Provincial Maternal and Child Health Care Hospital, Jinan, China
- *Correspondence: Yuxia Zhou
| | - Hefeng Wang
- Department of Pediatric Surgery, Shandong Provincial Maternal and Child Health Care Hospital, Jinan, China
- Hefeng Wang
| |
Collapse
|
12
|
Bioactive Metabolite Production in the Genus Pyrenophora (Pleosporaceae, Pleosporales). Toxins (Basel) 2022; 14:toxins14090588. [PMID: 36136526 PMCID: PMC9503419 DOI: 10.3390/toxins14090588] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2022] [Revised: 08/17/2022] [Accepted: 08/23/2022] [Indexed: 12/26/2022] Open
Abstract
The genus Pyrenophora includes two important cereal crop foliar pathogens and a large number of less well-known species, many of which are also grass pathogens. Only a few of these have been examined in terms of secondary metabolite production, yet even these few species have yielded a remarkable array of bioactive metabolites that include compounds produced through each of the major biosynthetic pathways. There is little overlap among species in the compounds identified. Pyrenophora tritici-repentis produces protein toxin effectors that mediate host-specific responses as well as spirocyclic lactams and at least one anthraquinone. Pyrenophora teres produces marasmine amino acid and isoquinoline derivatives involved in pathogenesis on barley as well as nonenolides with antifungal activity, while P. semeniperda produces cytochalasans and sesquiterpenoids implicated in pathogenesis on seeds as well as spirocyclic lactams with phytotoxic and antibacterial activity. Less well-known species have produced some unusual macrocyclic compounds in addition to a diverse array of anthraquinones. For the three best-studied species, in silico genome mining has predicted the existence of biosynthetic pathways for a much larger array of potentially toxic secondary metabolites than has yet been produced in culture. Most compounds identified to date have potentially useful biological activity.
Collapse
|
13
|
Ammendola S, Secli V, Pacello F, Mastropasqua MC, Romão MA, Gomes CM, Battistoni A. Zinc-binding metallophores protect Pseudomonas aeruginosa from calprotectin-mediated metal starvation. FEMS Microbiol Lett 2022; 369:6650350. [PMID: 35883222 DOI: 10.1093/femsle/fnac071] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2022] [Revised: 06/10/2022] [Accepted: 07/22/2022] [Indexed: 11/12/2022] Open
Abstract
Pseudomonas aeruginosa is known to exhibit considerable resistance to the antimicrobial activity of the metal-sequestering protein Calprotectin (CP). In this study we demonstrate that, although CP induces zinc deficiency in P. aeruginosa, a strain unable to import zinc through the two most important metal acquisition systems, namely ZnuABC and ZrmABCD, maintains significant growth capacity in the presence of high concentrations of CP. Furthermore, we have shown that nicotianamine, a molecule structurally similar to the metallophore pseudopaline, can favor the acquisition of the metal even in the presence of CP. To gain insights into the mechanisms through which metallophores can promote zinc acquisition, we analyzed the effect of nicotianamine on the activity of the metallo-β-lactamase VIM-1. Our data suggest that metallophores released by bacteria in response to zinc deficiency can extract the protein-bound metal. The ability to interfere with the binding of metals to proteins, as well as favoring the acquisition of zinc, may contribute to increasing the resistance of P. aeruginosa to the antimicrobial action of CP.
Collapse
Affiliation(s)
- Serena Ammendola
- Department of Biology, Università of Rome ''Tor Vergata'', Via della Ricerca Scientifica, 00133 Rome, Italy
| | - Valerio Secli
- Department of Biology, Università of Rome ''Tor Vergata'', Via della Ricerca Scientifica, 00133 Rome, Italy
| | - Francesca Pacello
- Department of Biology, Università of Rome ''Tor Vergata'', Via della Ricerca Scientifica, 00133 Rome, Italy
| | - Maria Chiara Mastropasqua
- Department of Biology, Università of Rome ''Tor Vergata'', Via della Ricerca Scientifica, 00133 Rome, Italy
| | - Mariana A Romão
- Biosystems and Integrative Sciences Institute, Faculdade de Ciências, Universidade de Lisboa, Lisbon, Portugal.,Departamento de Química e Bioquímica, Faculdade de Ciências, Universidade de Lisboa, Lisbon, Portugal
| | - Cláudio M Gomes
- Biosystems and Integrative Sciences Institute, Faculdade de Ciências, Universidade de Lisboa, Lisbon, Portugal.,Departamento de Química e Bioquímica, Faculdade de Ciências, Universidade de Lisboa, Lisbon, Portugal
| | - Andrea Battistoni
- Department of Biology, Università of Rome ''Tor Vergata'', Via della Ricerca Scientifica, 00133 Rome, Italy
| |
Collapse
|
14
|
Avci FG, Tastekil I, Jaisi A, Ozbek Sarica P, Sariyar Akbulut B. A review on the mechanistic details of OXA enzymes of ESKAPE pathogens. Pathog Glob Health 2022; 117:219-234. [PMID: 35758005 PMCID: PMC10081068 DOI: 10.1080/20477724.2022.2088496] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022] Open
Abstract
The production of β-lactamases is a prevalent mechanism that poses serious pressure on the control of bacterial resistance. Furthermore, the unavoidable and alarming increase in the transmission of bacteria producing extended-spectrum β-lactamases complicates treatment alternatives with existing drugs and/or approaches. Class D β-lactamases, designated as OXA enzymes, are characterized by their activity specifically towards oxacillins. They are widely distributed among the ESKAPE bugs that are associated with antibiotic resistance and life-threatening hospital infections. The inadequacy of current β-lactamase inhibitors for conventional treatments of 'OXA' mediated infections confirms the necessity of new approaches. Here, the focus is on the mechanistic details of OXA-10, OXA-23, and OXA-48, commonly found in highly virulent and antibiotic-resistant pathogens Acinetobacter baumannii, Klebsiella pneumoniae, Pseudomonas aeruginosa, and Enterobacter spp. to describe their similarities and differences. Furthermore, this review contains a specific emphasis on structural and computational perspectives, which will be valuable to guide efforts in the design/discovery of a common single-molecule drug against ESKAPE pathogens.
Collapse
Affiliation(s)
- Fatma Gizem Avci
- Bioengineering Department, Uskudar University, Uskudar, 34662, Turkey
| | - Ilgaz Tastekil
- Bioengineering Department, Marmara University, Kadikoy, 34722, Turkey
| | - Amit Jaisi
- Drug and Cosmetics Excellence Center, School of Pharmacy, Walailak University, 80160, Nakhon Si Thammarat, Thailand
| | | | | |
Collapse
|
15
|
Gong Y, Lu Y, Xue D, Wei Y, Li Q, Li G, Lu S, Wang J, Wang Y, Peng Y, Zhao Y. Emergence of a Carbapenem-Resistant Klebsiella pneumoniae Isolate Co-harbouring Dual bla NDM- 6 -Carrying Plasmids in China. Front Microbiol 2022; 13:900831. [PMID: 35663874 PMCID: PMC9158518 DOI: 10.3389/fmicb.2022.900831] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2022] [Accepted: 04/19/2022] [Indexed: 11/13/2022] Open
Abstract
The widespread emergence of carbapenem-resistant Klebsiella pneumoniae (CRKP) with limited therapeutic options has become a global concern. In this study, a K. pneumoniae strain called KP2e was recovered from a human case of fatal septic shock in a Chinese hospital. Polymerase chain reaction and sequencing, antimicrobial susceptibility testing, conjugation experiments, S1 nuclease-pulsed field gel electrophoresis/southern blot, whole genome sequencing and comparative genomics were performed to investigate the phenotypic and molecular characteristics of this isolate. KP2e possessed the NDM-6-encoding gene and exhibited resistance to almost all β-lactams except for monobactam. This strain belonged to sequence type 4024, the complete genome of which was composed of one chromosome and three plasmids. Furthermore, blaNDM–6 coexisted on two self-transmissible plasmids, which were assigned to types IncFIB and IncN. A structure of IS26-composite transposon capturing an identical Tn125 remnant (ΔISAba125-blaNDM–6-bleMBL-trpF-dsbC-cutA-groES-ΔgroEL) was identified in the two plasmids, and this conserved blaNDM-surrounding genetic context was similar to that of few IncN plasmids found in other regions of China. Our research appears to be the first description of a clinical strain that emerged co-harbouring dual blaNDM-carrying plasmids, and the first report of NDM-6-positive CRKP in China. These findings demonstrated that IncN is a key medium in the evolution and expanding dissemination of blaNDM genes among various species, which indicates that close monitoring and rapid detection of blaNDM-harbouring plasmids is necessary.
Collapse
Affiliation(s)
- Yali Gong
- Institute of Burn Research, Southwest Hospital, State Key Lab of Trauma, Burn and Combined Injury, Chongqing Key Laboratory for Disease Proteomics, Army Medical University, Chongqing, China
| | - Yifei Lu
- Institute of Burn Research, Southwest Hospital, State Key Lab of Trauma, Burn and Combined Injury, Chongqing Key Laboratory for Disease Proteomics, Army Medical University, Chongqing, China
| | - Dongdong Xue
- Institute of Burn Research, Southwest Hospital, State Key Lab of Trauma, Burn and Combined Injury, Chongqing Key Laboratory for Disease Proteomics, Army Medical University, Chongqing, China
| | - Yu Wei
- Department of Radiology, Southwest Hospital, Army Medical University, Chongqing, China
| | - Qimeng Li
- Institute of Burn Research, Southwest Hospital, State Key Lab of Trauma, Burn and Combined Injury, Chongqing Key Laboratory for Disease Proteomics, Army Medical University, Chongqing, China
| | - Gang Li
- Department of Microbiology, College of Basic Medical Sciences, Army Medical University, Chongqing, China
| | - Shuguang Lu
- Department of Microbiology, College of Basic Medical Sciences, Army Medical University, Chongqing, China
| | - Jing Wang
- Department of Microbiology, College of Basic Medical Sciences, Army Medical University, Chongqing, China
| | - Yunying Wang
- Department of Laboratory Medicine, The Second Affiliated Hospital, Chongqing Medical University, Chongqing, China
| | - Yizhi Peng
- Institute of Burn Research, Southwest Hospital, State Key Lab of Trauma, Burn and Combined Injury, Chongqing Key Laboratory for Disease Proteomics, Army Medical University, Chongqing, China
| | - Yan Zhao
- Department of Microbiology, College of Basic Medical Sciences, Army Medical University, Chongqing, China
| |
Collapse
|
16
|
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]
|
17
|
Koteva K, Sychantha D, Rotondo CM, Hobson C, Britten JF, Wright GD. Three-Dimensional Structure and Optimization of the Metallo-β-Lactamase Inhibitor Aspergillomarasmine A. ACS OMEGA 2022; 7:4170-4184. [PMID: 35155911 PMCID: PMC8829947 DOI: 10.1021/acsomega.1c05757] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/14/2021] [Accepted: 12/27/2021] [Indexed: 06/14/2023]
Abstract
The aminopolycarboxylic acid aspergillomarasmine A (AMA) is a natural Zn2+ metallophore and inhibitor of metallo-β-lactamases (MBLs) which reverses β-lactam resistance. The first crystal structure of an AMA coordination complex is reported and reveals a pentadentate ligand with distorted octahedral geometry. We report the solid-phase synthesis of 23 novel analogs of AMA involving structural diversification of each subunit (l-Asp, l-APA1, and l-APA2). Inhibitory activity was evaluated in vitro using five strains of Escherichia coli producing globally prevalent MBLs. Further in vitro assessment was performed with purified recombinant enzymes and intracellular accumulation studies. Highly constrained structure-activity relationships were demonstrated, but three analogs revealed favorable characteristics where either Zn2+ affinity or the binding mode to MBLs were improved. This study identifies compounds that can further be developed to produce more potent and broader-spectrum MBL inhibitors with improved pharmacodynamic/pharmacokinetic properties.
Collapse
Affiliation(s)
- Kalinka Koteva
- David
Braley Centre for Antibiotic Discovery, M.G. DeGroote Institute for
Infectious Disease Research, Department of Biochemistry and Biomedical
Sciences, McMaster University, Hamilton, ON L8N 3Z5, Canada
| | - David Sychantha
- David
Braley Centre for Antibiotic Discovery, M.G. DeGroote Institute for
Infectious Disease Research, Department of Biochemistry and Biomedical
Sciences, McMaster University, Hamilton, ON L8N 3Z5, Canada
| | - Caitlyn M. Rotondo
- David
Braley Centre for Antibiotic Discovery, M.G. DeGroote Institute for
Infectious Disease Research, Department of Biochemistry and Biomedical
Sciences, McMaster University, Hamilton, ON L8N 3Z5, Canada
| | - Christian Hobson
- David
Braley Centre for Antibiotic Discovery, M.G. DeGroote Institute for
Infectious Disease Research, Department of Biochemistry and Biomedical
Sciences, McMaster University, Hamilton, ON L8N 3Z5, Canada
- Willow
Biosciences, 2250 Boundary
Rd, Burnaby, BC V5M 3Z3, Canada
| | - James F. Britten
- McMaster
Analytical X-ray Diffraction Facility (MAX), McMaster University, Hamilton, ON L8N 3Z5, Canada
| | - Gerard D. Wright
- David
Braley Centre for Antibiotic Discovery, M.G. DeGroote Institute for
Infectious Disease Research, Department of Biochemistry and Biomedical
Sciences, McMaster University, Hamilton, ON L8N 3Z5, Canada
| |
Collapse
|
18
|
Bahr G, González LJ, Vila AJ. Metallo-β-lactamases and a tug-of-war for the available zinc at the host-pathogen interface. Curr Opin Chem Biol 2022; 66:102103. [PMID: 34864439 PMCID: PMC8860843 DOI: 10.1016/j.cbpa.2021.102103] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2021] [Revised: 10/16/2021] [Accepted: 10/28/2021] [Indexed: 02/03/2023]
Abstract
Metallo-β-lactamases (MBLs) are zinc-dependent hydrolases that inactivate virtually all β-lactam antibiotics. The expression of MBLs by Gram-negative bacteria severely limits the therapeutic options to treat infections. MBLs bind the essential metal ions in the bacterial periplasm, and their activity is challenged upon the zinc starvation conditions elicited by the native immune response. Metal depletion compromises both the enzyme activity and stability in the periplasm, impacting on the resistance profile in vivo. Thus, novel inhibitory approaches involve the use of chelating agents or metal-based drugs that displace the native metal ion. However, newer MBL variants incorporate mutations that improve their metal binding abilities or stabilize the metal-depleted form, revealing that metal starvation is a driving force acting on MBL evolution. Future challenges require addressing the gap between in cell and in vitro studies, dissecting the mechanism for MBL metalation and determining the metal content in situ.
Collapse
Affiliation(s)
- Guillermo Bahr
- Instituto de Biología Molecular y Celular de Rosario (IBR, CONICET-UNR), S2000EXF Rosario, Argentina; Área Biofísica, Facultad de Ciencias Bioquímicas y Farmacéuticas, Universidad Nacional de Rosario, S2002LRK Rosario, Argentina
| | - Lisandro J González
- Instituto de Biología Molecular y Celular de Rosario (IBR, CONICET-UNR), S2000EXF Rosario, Argentina; Área Biofísica, Facultad de Ciencias Bioquímicas y Farmacéuticas, Universidad Nacional de Rosario, S2002LRK Rosario, Argentina
| | - Alejandro J Vila
- Instituto de Biología Molecular y Celular de Rosario (IBR, CONICET-UNR), S2000EXF Rosario, Argentina; Área Biofísica, Facultad de Ciencias Bioquímicas y Farmacéuticas, Universidad Nacional de Rosario, S2002LRK Rosario, Argentina.
| |
Collapse
|
19
|
Ayipo YO, Osunniran WA, Babamale HF, Ayinde MO, Mordi MN. Metalloenzyme mimicry and modulation strategies to conquer antimicrobial resistance: Metal-ligand coordination perspectives. Coord Chem Rev 2022. [DOI: 10.1016/j.ccr.2021.214317] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
|