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Sun N, Zhi Z, Xiao T, Deng X, He T, Dong W, Feng S, Chen S, Wong WL, Yuan W. The study of honokiol as a natural product-based antimicrobial agent and its potential interaction with FtsZ protein. Front Microbiol 2024; 15:1361508. [PMID: 39104591 PMCID: PMC11298477 DOI: 10.3389/fmicb.2024.1361508] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2023] [Accepted: 07/10/2024] [Indexed: 08/07/2024] Open
Abstract
Multidrug resistant bacteria have been a global health threat currently and frontline clinical treatments for these infections are very limited. To develop potent antibacterial agents with new bactericidal mechanisms is thus needed urgently to address this critical antibiotic resistance challenge. Natural products are a treasure of small molecules with high bioactive and low toxicity. In the present study, we demonstrated that a natural compound, honokiol, showed potent antibacterial activity against a number of Gram-positive bacteria including MRSA and VRE. Moreover, honokiol in combination with clinically used β-lactam antibiotics exhibits strong synergistic antimicrobial effects against drug-resistant S. aureus strains. Biochemical studies further reveal that honokiol may disrupt the GTPase activity, FtsZ polymerization, cell division. These biological impacts induced by honokiol may ultimately cause bacterial cell death. The in vivo antibacterial activity of honokiol against S. aureus infection was also verified with a biological model of G. mellonella larvae. The in vivo results support that honokiol is low toxic against the larvae and effectively increases the survival rate of the larvae infected with S. aureus. These findings demonstrate the potential of honokiol for further structural advancement as a new class of antibacterial agents with high potency against multidrug-resistant bacteria.
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Affiliation(s)
- Ning Sun
- Guangzhou 11th People's Hospital, Guangzhou Cadre and Talent Health Management Center, Guangzhou, China
| | - Ziling Zhi
- Guangzhou Key Laboratory for Clinical Rapid Diagnosis and Early Warning of Infectious Diseases, King Med School of Laboratory Medicine, Guangzhou Medical University, Guangzhou, China
| | - Ting Xiao
- Guangzhou 11th People's Hospital, Guangzhou Cadre and Talent Health Management Center, Guangzhou, China
| | - Xin Deng
- Guangzhou 11th People's Hospital, Guangzhou Cadre and Talent Health Management Center, Guangzhou, China
| | - Tenghui He
- Guangzhou 11th People's Hospital, Guangzhou Cadre and Talent Health Management Center, Guangzhou, China
| | - Wanyang Dong
- Guangzhou Key Laboratory for Clinical Rapid Diagnosis and Early Warning of Infectious Diseases, King Med School of Laboratory Medicine, Guangzhou Medical University, Guangzhou, China
| | - Shuyi Feng
- Guangzhou 11th People's Hospital, Guangzhou Cadre and Talent Health Management Center, Guangzhou, China
| | - Sisi Chen
- Guangzhou Key Laboratory for Clinical Rapid Diagnosis and Early Warning of Infectious Diseases, King Med School of Laboratory Medicine, Guangzhou Medical University, Guangzhou, China
| | - Wing-Leung Wong
- State Key Laboratory of Chemical Biology and Drug Discovery, and Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Kowloon, Hong Kong SAR, China
| | - Wenchang Yuan
- Guangzhou Key Laboratory for Clinical Rapid Diagnosis and Early Warning of Infectious Diseases, King Med School of Laboratory Medicine, Guangzhou Medical University, Guangzhou, China
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2
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Zhang Y, Zhang D, Geng Y, He Y, Song P, Wang R. Construction of self-propelled micromotor for "hunting bacteria". Biomater Sci 2023; 11:6775-6780. [PMID: 37695067 DOI: 10.1039/d3bm01175e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/12/2023]
Abstract
The inherent migration behavior of bacteria has inevitably impacted the advancement of the antibacterial treatment technology. Hunting bacteria, especially those with flagellates, requires self-propelled materials, which could kill bacteria autonomously. Herein, we designed and synthesized a self-propelled micromotor (SPM) tailed with poly(thiazole) to yield bimetallic organic frameworks (BiOFs), in which the assembly of BiOFs are similar to the "Newman projection". The moving speed of the obtained SPM was 238.6 μm s-1 and presented excellent antibacterial activity; more than 90% bacteria were hunted and killed in flowing water. Its minimum inhibitory concentration (MIC) against E. coli and S. aureus was 3.2 and 0.4 mg mL-1, respectively, and its antibacterial activity was still retained after recycling for 5 times. Its antibacterial mechanism along with the contribution of the active units and flow rate was investigated. In summary, a novel self-propelled material for hunting bacteria was synthesized by an unprecedented and efficient strategy. This approach is anticipated to create huge possibilities for its applications in the fields of antibacterial, disinfection, and microdevices.
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Affiliation(s)
- Yaping Zhang
- Key Lab Eco-Functional Polymer Materials of MOE, Institute of Polymer, College of Chemistry & Chemical Engineering, Northwest Normal University, Lanzhou 730070, China.
| | - Duoxin Zhang
- Key Lab Eco-Functional Polymer Materials of MOE, Institute of Polymer, College of Chemistry & Chemical Engineering, Northwest Normal University, Lanzhou 730070, China.
| | - Yuanze Geng
- Key Lab Eco-Functional Polymer Materials of MOE, Institute of Polymer, College of Chemistry & Chemical Engineering, Northwest Normal University, Lanzhou 730070, China.
| | - Yufeng He
- Key Lab Eco-Functional Polymer Materials of MOE, Institute of Polymer, College of Chemistry & Chemical Engineering, Northwest Normal University, Lanzhou 730070, China.
| | - Pengfei Song
- Key Lab Eco-Functional Polymer Materials of MOE, Institute of Polymer, College of Chemistry & Chemical Engineering, Northwest Normal University, Lanzhou 730070, China.
| | - Rongmin Wang
- Key Lab Eco-Functional Polymer Materials of MOE, Institute of Polymer, College of Chemistry & Chemical Engineering, Northwest Normal University, Lanzhou 730070, China.
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3
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Alotaibi BS. Targeting Filamenting temperature-sensitive mutant Z (FtsZ) with bioactive phytoconstituents: An emerging strategy for antibacterial therapy. PLoS One 2023; 18:e0290852. [PMID: 37647309 PMCID: PMC10468062 DOI: 10.1371/journal.pone.0290852] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2023] [Accepted: 08/17/2023] [Indexed: 09/01/2023] Open
Abstract
The rise and widespread occurrence of bacterial resistance has created an evident need for novel antibacterial drugs. Filamenting temperature-sensitive mutant Z (FtsZ) is a crucial bacterial protein that forms a ring-like structure known as the Z-ring, playing a significant role in cell division. Targeting FtsZ is an effective approach for developing antibiotics that disrupt bacterial cell division and halt growth. This study aimed to use a virtual screening approach to search for bioactive phytoconstituents with the potential to inhibit FtsZ. The screening process proceeded with the filtering compounds from the IMPPAT library of phytochemicals based on their physicochemical properties using the Lipinski rule of five. This was followed by molecular docking, Pan-assay interference compounds (PAINS) filter, absorption, distribution, metabolism, excretion, and toxicity (ADMET), prediction of activity spectra for biologically active substances (PASS), and molecular dynamics (MD) simulations. These filters ensured that any adverse effects that could impede the identification of potential inhibitors of FtsZ were eliminated. Following this, two phytocompounds, Withaperuvin C and Trifolirhizin, were selected after the screening, demonstrating noteworthy binding potential with FtsZ's GTP binding pocket, acting as potent GTP-competitive inhibitors of FtsZ. The study suggested that these compounds could be further investigated for developing a novel class of antibiotics after required studies.
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Affiliation(s)
- Bader Saud Alotaibi
- Department of Laboratories Sciences, College of Applied Medical Sciences, Shaqra University, Alquwayiyah, Saudi Arabia
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4
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Patan A, Aanandhi M V, P G. Molecular dynamics simulation approach of hybrid chalcone-thiazole complex derivatives for DNA gyrase B inhibition: lead generation. RSC Adv 2023; 13:24291-24308. [PMID: 37583661 PMCID: PMC10424056 DOI: 10.1039/d3ra00732d] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2023] [Accepted: 07/31/2023] [Indexed: 08/17/2023] Open
Abstract
Compounds bearing thiazole and chalcone groups have been reported to be excellent leads for antibacterial, antitubercular and anticancer activities. In view of this, we performed quantitative structure-activity relationship studies using QSARINS for dataset preparation and for developing validated QSAR models that can predict novel series of thiazole-chalcone hybrids and further evaluate them for bioactivities. The molecular descriptors AATS8i, AVP-1, MoRSEE17 and GATSe7 were found to be active in predicting the structure-activity relationship. Molecular docking and dynamics simulation studies of the developed leads have shown insights into structural analysis. Furthermore, computational studies using AutoDock and Desmond predicted the key binding interactions responsible for the activity and the SwissADME tool computed the in silico drug likeliness properties. The lead compound 178 generated through this study creates a route for the optimization and development of novel drugs against tuberculosis infections. RMSD, RMSF, RoG, H-bond and SASA analysis confirmed the stable binding of compound 178 with the 6J90 structure. In addition, MM-PBSA and MM-GBSA also confirm the docking results. We propose the designed compound 178 as the best theoretical lead, which may further be experimentally studied for selective inhibition.
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Affiliation(s)
- Afroz Patan
- Department of Pharmaceutical Chemistry, School of Pharmaceutical Sciences, VISTAS Chennai Tamil Nadu India
| | - Vijey Aanandhi M
- Department of Pharmaceutical Chemistry, School of Pharmaceutical Sciences, VISTAS Chennai Tamil Nadu India
| | - Gopinath P
- Department of Pharmaceutical Chemistry, GITAM School of Pharmacy, GITAM University Hyderabad Telangana India
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5
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Sharma AK, Poddar SM, Chakraborty J, Nayak BS, Kalathil S, Mitra N, Gayathri P, Srinivasan R. A mechanism of salt bridge-mediated resistance to FtsZ inhibitor PC190723 revealed by a cell-based screen. Mol Biol Cell 2023; 34:ar16. [PMID: 36652338 PMCID: PMC10011733 DOI: 10.1091/mbc.e22-12-0538] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
Abstract
Bacterial cell division proteins, especially the tubulin homologue FtsZ, have emerged as strong targets for developing new antibiotics. Here, we have utilized the fission yeast heterologous expression system to develop a cell-based assay to screen for small molecules that directly and specifically target the bacterial cell division protein FtsZ. The strategy also allows for simultaneous assessment of the toxicity of the drugs to eukaryotic yeast cells. As a proof-of-concept of the utility of this assay, we demonstrate the effect of the inhibitors sanguinarine, berberine, and PC190723 on FtsZ. Though sanguinarine and berberine affect FtsZ polymerization, they exert a toxic effect on the cells. Further, using this assay system, we show that PC190723 affects Helicobacter pylori FtsZ function and gain new insights into the molecular determinants of resistance to PC190723. On the basis of sequence and structural analysis and site-specific mutations, we demonstrate that the presence of salt bridge interactions between the central H7 helix and β-strands S9 and S10 mediates resistance to PC190723 in FtsZ. The single-step in vivo cell-based assay using fission yeast enabled us to dissect the contribution of sequence-specific features of FtsZ and cell permeability effects associated with bacterial cell envelopes. Thus, our assay serves as a potent tool to rapidly identify novel compounds targeting polymeric bacterial cytoskeletal proteins like FtsZ to understand how they alter polymerization dynamics and address resistance determinants in targets.
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Affiliation(s)
- Ajay Kumar Sharma
- School of Biological Sciences, National Institute of Science Education and Research, Bhubaneswar 752050, India.,Centre for Interdisciplinary Sciences, National Institute of Science Education and Research, Bhubaneswar 752050, India.,Homi Bhabha National Institutes, Anushakti Nagar, Mumbai 400094, India
| | - Sakshi Mahesh Poddar
- School of Biological Sciences, National Institute of Science Education and Research, Bhubaneswar 752050, India.,Centre for Interdisciplinary Sciences, National Institute of Science Education and Research, Bhubaneswar 752050, India.,Homi Bhabha National Institutes, Anushakti Nagar, Mumbai 400094, India
| | - Joyeeta Chakraborty
- Biology, Indian Institute of Science Education and Research, Pune 411008, India
| | - Bhagyashri Soumya Nayak
- School of Biological Sciences, National Institute of Science Education and Research, Bhubaneswar 752050, India.,Centre for Interdisciplinary Sciences, National Institute of Science Education and Research, Bhubaneswar 752050, India.,Homi Bhabha National Institutes, Anushakti Nagar, Mumbai 400094, India
| | - Srilakshmi Kalathil
- School of Biological Sciences, National Institute of Science Education and Research, Bhubaneswar 752050, India.,Centre for Interdisciplinary Sciences, National Institute of Science Education and Research, Bhubaneswar 752050, India.,Homi Bhabha National Institutes, Anushakti Nagar, Mumbai 400094, India
| | - Nivedita Mitra
- School of Biological Sciences, National Institute of Science Education and Research, Bhubaneswar 752050, India.,Centre for Interdisciplinary Sciences, National Institute of Science Education and Research, Bhubaneswar 752050, India.,Homi Bhabha National Institutes, Anushakti Nagar, Mumbai 400094, India
| | - Pananghat Gayathri
- Biology, Indian Institute of Science Education and Research, Pune 411008, India
| | - Ramanujam Srinivasan
- School of Biological Sciences, National Institute of Science Education and Research, Bhubaneswar 752050, India.,Centre for Interdisciplinary Sciences, National Institute of Science Education and Research, Bhubaneswar 752050, India.,Homi Bhabha National Institutes, Anushakti Nagar, Mumbai 400094, India
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6
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Models versus pathogens: how conserved is the FtsZ in bacteria? Biosci Rep 2023; 43:232502. [PMID: 36695643 PMCID: PMC9939409 DOI: 10.1042/bsr20221664] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2022] [Revised: 01/10/2023] [Accepted: 01/25/2023] [Indexed: 01/26/2023] Open
Abstract
Combating anti-microbial resistance by developing alternative strategies is the need of the hour. Cell division, particularly FtsZ, is being extensively studied for its potential as an alternative target for anti-bacterial therapy. Bacillus subtilis and Escherichia coli are the two well-studied models for research on FtsZ, the leader protein of the cell division machinery. As representatives of gram-positive and gram-negative bacteria, respectively, these organisms have provided an extensive outlook into the process of cell division in rod-shaped bacteria. However, research on other shapes of bacteria, like cocci and ovococci, lags behind that of model rods. Even though most regions of FtsZ show sequence and structural conservation throughout bacteria, the differences in FtsZ functioning and interacting partners establish several different modes of division in different bacteria. In this review, we compare the features of FtsZ and cell division in the model rods B. subtilis and E. coli and the four pathogens: Staphylococcus aureus, Streptococcus pneumoniae, Mycobacterium tuberculosis, and Pseudomonas aeruginosa. Reviewing several recent articles on these pathogenic bacteria, we have highlighted the functioning of FtsZ, the unique roles of FtsZ-associated proteins, and the cell division processes in them. Further, we provide a detailed look at the anti-FtsZ compounds discovered and their target bacteria, emphasizing the need for elucidation of the anti-FtsZ mechanism of action in different bacteria. Current challenges and opportunities in the ongoing journey of identifying potent anti-FtsZ drugs have also been described.
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7
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Antibacterial Activity of an FtsZ Inhibitor Celastrol and Its Synergistic Effect with Vancomycin against Enterococci In Vitro and In Vivo. Microbiol Spectr 2023; 11:e0369922. [PMID: 36622182 PMCID: PMC9927571 DOI: 10.1128/spectrum.03699-22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
Abstract
Enterococci can cause various infectious diseases, including urinary tract infection, wound infection, and life-threatening endocarditis and meningitis. The emergence and transmission of vancomycin-resistant enterococci (VRE) have presented a challenge to clinical treatment. There is an urgent need to develop new strategies to fight against this pathogen. This study investigated the antibacterial and anti-biofilm activity of celastrol (CEL), a natural product originating from Tripterygium wilfordii Hook F, against enterococci, and its adjuvant capacity of restoring the susceptibility of VRE to vancomycin in vitro and in vivo. CEL inhibited all enterococcus strains tested, with MICs ranging from 0.5 to 4 μg/mL. More than 50% of biofilm was eliminated by CEL at 16 μg/mL after 24 h of exposure. The combination of CEL and vancomycin showed a synergistic effect against all 23 strains tested in checkerboard assays. The combination of sub-MIC levels of CEL and vancomycin showed a synergistic effect in a time-kill assay and exhibited significant protective efficacy in Galleria mellonella larval infection model compared with either drug used alone. The underlying mechanisms of CEL were explored by conducting biomolecular binding interactions and an enzyme inhibition assay of CEL on bacterial cell-division protein FtsZ. CEL presented strong binding and suppression ability to FtsZ, with Kd and IC50 values of 2.454 μM and 1.04 ± 0.17 μg/mL, respectively. CEL exhibits a significant antibacterial and synergic activity against VRE in vitro and in vivo and has the potential to be a new antibacterial agent or adjuvant to vancomycin as a therapeutic option in combating VRE. IMPORTANCE The emergence and transmission of VRE pose a significant medical and public health challenge. CEL, well-known for a wide range of biological activities, has not previously been investigated for its synergistic effect with vancomycin against VRE. In the present study, CEL exhibited antibacterial activity against enterococci, including VRE strains, and restored the activity of vancomycin against VRE in vitro and in vivo. Hence, CEL has the potential to be a new antibacterial adjuvant to vancomycin and could provide a promising therapeutic option in combating VRE.
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8
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Du RL, Chow HY, Chen YW, Chan PH, Daniel RA, Wong KY. Gossypol acetate: A natural polyphenol derivative with antimicrobial activities against the essential cell division protein FtsZ. Front Microbiol 2023; 13:1080308. [PMID: 36713210 PMCID: PMC9878342 DOI: 10.3389/fmicb.2022.1080308] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2022] [Accepted: 12/28/2022] [Indexed: 01/14/2023] Open
Abstract
Antimicrobial resistance has attracted worldwide attention and remains an urgent issue to resolve. Discovery of novel compounds is regarded as one way to circumvent the development of resistance and increase the available treatment options. Gossypol is a natural polyphenolic aldehyde, and it has attracted increasing attention as a possible antibacterial drug. In this paper, we studied the antimicrobial properties (minimum inhibitory concentrations) of gossypol acetate against both Gram-positive and Gram-negative bacteria strains and dig up targets of gossypol acetate using in vitro assays, including studying its effects on functions (GTPase activity and polymerization) of Filamenting temperature sensitive mutant Z (FtsZ) and its interactions with FtsZ using isothermal titration calorimetry (ITC), and in vivo assays, including visualization of cell morphologies and proteins localizations using a microscope. Lastly, Bacterial membrane permeability changes were studied, and the cytotoxicity of gossypol acetate was determined. We also estimated the interactions of gossypol acetate with the promising target. We found that gossypol acetate can inhibit the growth of Gram-positive bacteria such as the model organism Bacillus subtilis and the pathogen Staphylococcus aureus [both methicillin-sensitive (MSSA) and methicillin-resistant (MRSA)]. In addition, gossypol acetate can also inhibit the growth of Gram-negative bacteria when the outer membrane is permeabilized by Polymyxin B nonapeptide (PMBN). Using a cell biological approach, we show that gossypol acetate affects cell division in bacteria by interfering with the assembly of the cell division FtsZ ring. Biochemical analysis shows that the GTPase activity of FtsZ was inhibited and polymerization of FtsZ was enhanced in vitro, consistent with the block to cell division in the bacteria tested. The binding mode of gossypol acetate in FtsZ was modeled using molecular docking and provides an understanding of the compound mode of action. The results point to gossypol (S2303) as a promising antimicrobial compound that inhibits cell division by affecting FtsZ polymerization and has potential to be developed into an effective antimicrobial drug by chemical modification to minimize its cytotoxic effects in eukaryotic cells that were identified in this work.
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Affiliation(s)
- Ruo-Lan Du
- Department of Applied Biology and Chemical Technology and the State Key Laboratory of Chemical Biology and Drug Discovery, The Hong Kong Polytechnic University, Kowloon, Hong Kong SAR, China
| | - Ho-Yin Chow
- Department of Applied Biology and Chemical Technology and the State Key Laboratory of Chemical Biology and Drug Discovery, The Hong Kong Polytechnic University, Kowloon, Hong Kong SAR, China
| | - Yu Wei Chen
- Department of Applied Biology and Chemical Technology and the State Key Laboratory of Chemical Biology and Drug Discovery, The Hong Kong Polytechnic University, Kowloon, Hong Kong SAR, China
| | - Pak-Ho Chan
- Department of Applied Biology and Chemical Technology and the State Key Laboratory of Chemical Biology and Drug Discovery, The Hong Kong Polytechnic University, Kowloon, Hong Kong SAR, China
| | - Richard A. Daniel
- Centre for Bacterial Cell Biology, Biosciences Institute, Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne, United Kingdom,Richard A. Daniel,
| | - Kwok-Yin Wong
- Department of Applied Biology and Chemical Technology and the State Key Laboratory of Chemical Biology and Drug Discovery, The Hong Kong Polytechnic University, Kowloon, Hong Kong SAR, China,*Correspondence: Kwok-Yin Wong,
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9
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Liu J, Dotsuta Y, Sumita T, Kitagaki T, Ohnuki T, Kozai N. Potential bacterial alteration of nuclear fuel debris: a preliminary study using simulants in powder and pellet forms. J Radioanal Nucl Chem 2022. [DOI: 10.1007/s10967-022-08324-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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10
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Pradhan P, Margolin W, Beuria TK. Targeting the Achilles Heel of FtsZ: The Interdomain Cleft. Front Microbiol 2021; 12:732796. [PMID: 34566937 PMCID: PMC8456036 DOI: 10.3389/fmicb.2021.732796] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2021] [Accepted: 08/16/2021] [Indexed: 02/03/2023] Open
Abstract
Widespread antimicrobial resistance among bacterial pathogens is a serious threat to public health. Thus, identification of new targets and development of new antibacterial agents are urgently needed. Although cell division is a major driver of bacterial colonization and pathogenesis, its targeting with antibacterial compounds is still in its infancy. FtsZ, a bacterial cytoskeletal homolog of eukaryotic tubulin, plays a highly conserved and foundational role in cell division and has been the primary focus of research on small molecule cell division inhibitors. FtsZ contains two drug-binding pockets: the GTP binding site situated at the interface between polymeric subunits, and the inter-domain cleft (IDC), located between the N-terminal and C-terminal segments of the core globular domain of FtsZ. The majority of anti-FtsZ molecules bind to the IDC. Compounds that bind instead to the GTP binding site are much less useful as potential antimicrobial therapeutics because they are often cytotoxic to mammalian cells, due to the high sequence similarity between the GTP binding sites of FtsZ and tubulin. Fortunately, the IDC has much less sequence and structural similarity with tubulin, making it a better potential target for drugs that are less toxic to humans. Over the last decade, a large number of natural and synthetic IDC inhibitors have been identified. Here we outline the molecular structure of IDC in detail and discuss how it has become a crucial target for broad spectrum and species-specific antibacterial agents. We also outline the drugs that bind to the IDC and their modes of action.
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Affiliation(s)
- Pinkilata Pradhan
- Institute of Life Sciences, Nalco Square, Bhubaneswar, India
- Regional Centre for Biotechnology, Faridabad, India
| | - William Margolin
- Department of Microbiology and Molecular Genetics, McGovern Medical School, Houston, TX, United States
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11
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Kasetti AB, Singhvi I, Nagasuri R, Bhandare RR, Shaik AB. Thiazole-Chalcone Hybrids as Prospective Antitubercular and Antiproliferative Agents: Design, Synthesis, Biological, Molecular Docking Studies and In Silico ADME Evaluation. Molecules 2021; 26:2847. [PMID: 34064806 PMCID: PMC8151732 DOI: 10.3390/molecules26102847] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2021] [Revised: 05/01/2021] [Accepted: 05/08/2021] [Indexed: 11/16/2022] Open
Abstract
Compounds bearing thiazole and chalcone pharmacophores have been reported to possess excellent antitubercular and anticancer activities. In view of this, we designed, synthesized and characterized a novel series of thiazole-chalcone hybrids (1-20) and further evaluated them for antitubercular and antiproliferative activities by employing standard protocols. Among the twenty compounds, chalcones 12 and 7, containing 2,4-difluorophenyl and 2,4-dichlorophenyl groups, showed potential antitubercular activity higher than the standard pyrazinamide (MIC = 25.34 µM) with MICs of 2.43 and 4.41 µM, respectively. Chalcone 20 containing heteroaryl 2-thiazolyl moiety exhibited promising antiproliferative activity against the prostate cancer cell line (DU-145), higher than the standard methotrexate (IC50 = 11 ± 1 µM) with an IC50 value of 6.86 ± 1 µM. Furthermore, cytotoxicity studies of these compounds against normal human liver cell lines (L02) revealed that the target molecules were comparatively less selective against L02. Additional computational studies using AutoDock predicted the key binding interactions responsible for the activity and the SwissADME tool computed the in silico drug likeliness properties. The lead compounds generated through this study, create a way for the optimization and development of novel drugs against tuberculosis infections and prostate cancer.
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Affiliation(s)
- Ashok Babu Kasetti
- Research Scholar, Faculty of Pharmacy, Pacific Academy of Higher Education and Research University, Pacific University, Udaipur 313003, India
- Dr. Samuel George Institute of Pharmaceutical Sciences, Markapuram, Andhra Pradesh 523316, India
| | - Indrajeet Singhvi
- Faculty of Pharmacy, Pacific Academy of Higher Education and Research University, Pacific University, Udaipur 313003, India;
| | - Ravindra Nagasuri
- A.M. Reddy Memorial College of Pharmacy, Narasaraopeta, Andhra Pradesh 523316, India;
| | - Richie R. Bhandare
- Department of Pharmaceutical Sciences, College of Pharmacy & Health Sciences, Ajman University, Ajman P.O. Box 346, United Arab Emirates
- Center of Medical and Bio-Allied Health Sciences Research, Ajman University, Ajman P.O. Box 346, United Arab Emirates
| | - Afzal B. Shaik
- Department of Pharmaceutical Chemistry, Vignan Pharmacy College, Vadlamudi, Guntur, Andhra Pradesh 522213, India
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12
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Sanad SMH, Mekky AEM, El-Reedy AAM. Tandem synthesis and antibacterial screening of novel thieno[2,3- b]thiophene-linked bis(thiazole) hybrids. SYNTHETIC COMMUN 2021. [DOI: 10.1080/00397911.2021.1918170] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
| | - Ahmed E. M. Mekky
- Chemistry Department, Faculty of Science, Cairo University, Giza, Egypt
| | - Ahmed A. M. El-Reedy
- Basic Science Department, Faculty of Oral and Dental Medicine, Nahda University, Beni-Suef, Egypt
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13
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Chen CC, Zhang YQ, Zhong DX, Huang XH, Zhang YH, Jiang WH, Li M, Chen Q, Wong WL, Lu YJ. The study of 9,10-dihydroacridine derivatives as a new and effective molecular scaffold for antibacterial agent development. Biochem Biophys Res Commun 2021; 546:40-45. [PMID: 33561747 DOI: 10.1016/j.bbrc.2021.01.096] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2020] [Accepted: 01/28/2021] [Indexed: 10/22/2022]
Abstract
The emergence of worldwide spreading drug-resistant bacteria has been a serious threat to public health during the past decades. The development of new and effective antibacterial agents to address this critical issue is an urgent action. In the present study, we investigated the antibacterial activity of two 9,10-dihydroacridine derivatives and their mechanism. Both compounds were found possessing strong antibacterial activity against some selected Gram-positive bacteria including MRSA, VISA and VRE. The biological study suggests that the compounds promoted FtsZ polymerization and also disrupted Z-ring formation at the dividing site and consequently, the bacterial cell division is interrupted and causing cell death.
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Affiliation(s)
- Cui-Cui Chen
- School of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, Guangzhou, 510006, PR China
| | - Yi-Qi Zhang
- College of Marine Science, Shandong University, Weihai, 264209, PR China
| | - Dong-Xiao Zhong
- School of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, Guangzhou, 510006, PR China
| | - Xuan-He Huang
- School of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, Guangzhou, 510006, PR China
| | - Yi-Han Zhang
- School of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, Guangzhou, 510006, PR China
| | - Wen-Hao Jiang
- School of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, Guangzhou, 510006, PR China
| | - Ming Li
- The Fifth Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510700, PR China
| | - Qian Chen
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou, 510006, PR China.
| | - Wing-Leung Wong
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen, 529020, PR China.
| | - Yu-Jing Lu
- School of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, Guangzhou, 510006, PR China.
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14
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El-Din A. Abuo-Rahma G, Hassan A, A. Hassan H, Abdelhamid D. Synthetic Approaches toward Certain Structurally Related Antimicrobial Thiazole Derivatives (2010-2020). HETEROCYCLES 2021. [DOI: 10.3987/rev-21-956] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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15
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Chai WC, Whittall JJ, Song D, Polyak SW, Ogunniyi AD, Wang Y, Bi F, Ma S, Semple SJ, Venter H. Antimicrobial Action and Reversal of Resistance in MRSA by Difluorobenzamide Derivatives Targeted at FtsZ. Antibiotics (Basel) 2020; 9:E873. [PMID: 33291418 PMCID: PMC7762090 DOI: 10.3390/antibiotics9120873] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2020] [Revised: 11/26/2020] [Accepted: 11/28/2020] [Indexed: 01/21/2023] Open
Abstract
The bacterial cell division protein, FtsZ, has been identified as a target for antimicrobial development. Derivatives of 3-methoxybenzamide have shown promising activities as FtsZ inhibitors in Gram-positive bacteria. We sought to characterise the activity of five difluorobenzamide derivatives with non-heterocyclic substituents attached through the 3-oxygen. These compounds exhibited antimicrobial activity against methicillin resistant Staphylococcus aureus (MRSA), with an isopentyloxy-substituted compound showing modest activity against vancomycin resistant Enterococcus faecium (VRE). The compounds were able to reverse resistance to oxacillin in highly resistant clinical MRSA strains at concentrations far below their MICs. Three of the compounds inhibited an Escherichia coli strain lacking the AcrAB components of a drug efflux pump, which suggests the lack of Gram-negative activity can partly be attributed to efflux. The compounds inhibited cell division by targeting S. aureus FtsZ, producing a dose-dependent increase in GTPase rate which increased the rate of FtsZ polymerization and stabilized the FtsZ polymers. These compounds did not affect the polymerization of mammalian tubulin and did not display haemolytic activity or cytotoxicity. These derivatives are therefore promising compounds for further development as antimicrobial agents or as resistance breakers to re-sensitive MRSA to beta-lactam antibiotics.
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Affiliation(s)
- Wern Chern Chai
- Health and Biomedical Innovation, Clinical and Health Sciences, University of South Australia, SA 5000 Adelaide, Australia; (W.C.C.); (J.J.W.); (S.W.P.); (S.J.S.)
| | - Jonathan J. Whittall
- Health and Biomedical Innovation, Clinical and Health Sciences, University of South Australia, SA 5000 Adelaide, Australia; (W.C.C.); (J.J.W.); (S.W.P.); (S.J.S.)
| | - Di Song
- Department of Medicinal Chemistry, Key Laboratory of Chemical Biology (Ministry of Education), School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, Jinan 250012, China; (D.S.); (Y.W.); (F.B.); (S.M.)
| | - Steven W. Polyak
- Health and Biomedical Innovation, Clinical and Health Sciences, University of South Australia, SA 5000 Adelaide, Australia; (W.C.C.); (J.J.W.); (S.W.P.); (S.J.S.)
| | - Abiodun D. Ogunniyi
- Australia Centre for Antimicrobial Resistance Ecology, School of Animal and Veterinary Sciences, University of Adelaide, Roseworthy Campus, SA 5371 Roseworthy, Australia;
| | - Yinhu Wang
- Department of Medicinal Chemistry, Key Laboratory of Chemical Biology (Ministry of Education), School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, Jinan 250012, China; (D.S.); (Y.W.); (F.B.); (S.M.)
- School of Pharmacy, Liaocheng University, Liaocheng 252000, China
| | - Fangchao Bi
- Department of Medicinal Chemistry, Key Laboratory of Chemical Biology (Ministry of Education), School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, Jinan 250012, China; (D.S.); (Y.W.); (F.B.); (S.M.)
| | - Shutao Ma
- Department of Medicinal Chemistry, Key Laboratory of Chemical Biology (Ministry of Education), School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, Jinan 250012, China; (D.S.); (Y.W.); (F.B.); (S.M.)
| | - Susan J. Semple
- Health and Biomedical Innovation, Clinical and Health Sciences, University of South Australia, SA 5000 Adelaide, Australia; (W.C.C.); (J.J.W.); (S.W.P.); (S.J.S.)
- Quality Use of Medicines and Pharmacy Research Centre, Clinical and Health Sciences, University of South Australia, SA 5000 Adelaide, Australia
| | - Henrietta Venter
- Health and Biomedical Innovation, Clinical and Health Sciences, University of South Australia, SA 5000 Adelaide, Australia; (W.C.C.); (J.J.W.); (S.W.P.); (S.J.S.)
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16
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Abstract
The FtsZ protein is a highly conserved bacterial tubulin homolog. In vivo, the functional form of FtsZ is the polymeric, ring-like structure (Z-ring) assembled at the future division site during cell division. While it is clear that the Z-ring plays an essential role in orchestrating cytokinesis, precisely what its functions are and how these functions are achieved remain elusive. In this article, we review what we have learned during the past decade about the Z-ring's structure, function, and dynamics, with a particular focus on insights generated by recent high-resolution imaging and single-molecule analyses. We suggest that the major function of the Z-ring is to govern nascent cell pole morphogenesis by directing the spatiotemporal distribution of septal cell wall remodeling enzymes through the Z-ring's GTP hydrolysis-dependent treadmilling dynamics. In this role, FtsZ functions in cell division as the counterpart of the cell shape-determining actin homolog MreB in cell elongation.
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Affiliation(s)
- Ryan McQuillen
- Department of Biophysics & Biophysical Chemistry, Johns Hopkins University School of Medicine, Baltimore, Maryland 21205, USA; ,
| | - Jie Xiao
- Department of Biophysics & Biophysical Chemistry, Johns Hopkins University School of Medicine, Baltimore, Maryland 21205, USA; ,
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17
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Casiraghi A, Suigo L, Valoti E, Straniero V. Targeting Bacterial Cell Division: A Binding Site-Centered Approach to the Most Promising Inhibitors of the Essential Protein FtsZ. Antibiotics (Basel) 2020; 9:E69. [PMID: 32046082 PMCID: PMC7167804 DOI: 10.3390/antibiotics9020069] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2019] [Revised: 01/31/2020] [Accepted: 01/31/2020] [Indexed: 11/16/2022] Open
Abstract
Binary fission is the most common mode of bacterial cell division and is mediated by a multiprotein complex denominated the divisome. The constriction of the Z-ring splits the mother bacterial cell into two daughter cells of the same size. The Z-ring is formed by the polymerization of FtsZ, a bacterial protein homologue of eukaryotic tubulin, and it represents the first step of bacterial cytokinesis. The high grade of conservation of FtsZ in most prokaryotic organisms and its relevance in orchestrating the whole division system make this protein a fascinating target in antibiotic research. Indeed, FtsZ inhibition results in the complete blockage of the division system and, consequently, in a bacteriostatic or a bactericidal effect. Since many papers and reviews already discussed the physiology of FtsZ and its auxiliary proteins, as well as the molecular mechanisms in which they are involved, here, we focus on the discussion of the most compelling FtsZ inhibitors, classified by their main protein binding sites and following a medicinal chemistry approach.
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Affiliation(s)
| | | | | | - Valentina Straniero
- Dipartimento di Scienze Farmaceutiche, Università degli Studi di Milano, via Luigi Mangiagalli, 25, 20133 Milano, Italy; (A.C.); (L.S.); (E.V.)
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18
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Abd-Elmonem M, A. Mekheimer R, M. Hayallah A, A. Abo Elsoud F, U. Sadek K. Recent Advances in the Utility of Glycerol as a Benign and Biodegradable Medium in Heterocyclic Synthesis. CURR ORG CHEM 2020. [DOI: 10.2174/1385272823666191025150646] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
:
Glycerol is a non-toxic, recyclable and biodegradable organic waste produced
as a byproduct in the production of biodiesel fuel. Currently, glycerol is considered
a green solvent and catalyst for a large variety of applications. This work discusses
the significance of glycerol for heterocyclic synthesis. All the reported studies
consider glycerol as an efficient and sustainable benign medium.
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Affiliation(s)
- Mohamed Abd-Elmonem
- Department of Chemistry, Faculty of Science, Minia University, Minia 61519, Egypt
| | - Ramadan A. Mekheimer
- Department of Chemistry, Faculty of Science, Minia University, Minia 61519, Egypt
| | - Alaa M. Hayallah
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Deraya University, Minia, Egypt
| | - Fatma A. Abo Elsoud
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Deraya University, Minia, Egypt
| | - Kamal U. Sadek
- Department of Chemistry, Faculty of Science, Minia University, Minia 61519, Egypt
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19
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Li Y, Sun N, Ser HL, Long W, Li Y, Chen C, Zheng B, Huang X, Liu Z, Lu YJ. Antibacterial activity evaluation and mode of action study of novel thiazole-quinolinium derivatives. RSC Adv 2020; 10:15000-15014. [PMID: 35497125 PMCID: PMC9052103 DOI: 10.1039/d0ra00691b] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2020] [Accepted: 04/07/2020] [Indexed: 12/18/2022] Open
Abstract
A new series of thiazole-quinolinium derivatives perturb the polymerization of FtsZ with strong antibacterial activities.
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Affiliation(s)
- Ying Li
- School of Biomedical and Pharmaceutical Sciences
- Guangdong University of Technology
- Guangzhou 510006
- PR China
| | - Ning Sun
- School of Biomedical and Pharmaceutical Sciences
- Guangdong University of Technology
- Guangzhou 510006
- PR China
- The State Key Laboratory of Chemical Biology and Drug Discovery
| | - Hooi-Leng Ser
- School of Biomedical and Pharmaceutical Sciences
- Guangdong University of Technology
- Guangzhou 510006
- PR China
- Novel Bacteria and Drug Discovery (NBDD) Research Group
| | - Wei Long
- School of Biomedical and Pharmaceutical Sciences
- Guangdong University of Technology
- Guangzhou 510006
- PR China
| | - Yanan Li
- Department of Pharmacy
- The Fifth Affiliated Hospital of Sun Yat-sen University
- Zhuhai
- P. R. China
| | - Cuicui Chen
- School of Biomedical and Pharmaceutical Sciences
- Guangdong University of Technology
- Guangzhou 510006
- PR China
| | - Boxin Zheng
- School of Biomedical and Pharmaceutical Sciences
- Guangdong University of Technology
- Guangzhou 510006
- PR China
| | - Xuanhe Huang
- School of Biomedical and Pharmaceutical Sciences
- Guangdong University of Technology
- Guangzhou 510006
- PR China
| | - Zhihua Liu
- The State Key Laboratory of Chemical Biology and Drug Discovery
- Department of Applied Biology and Chemical Technology
- The Hong Kong Polytechnic University
- Kowloon
- China
| | - Yu-Jing Lu
- School of Biomedical and Pharmaceutical Sciences
- Guangdong University of Technology
- Guangzhou 510006
- PR China
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20
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Carro L. Recent Progress in the Development of Small-Molecule FtsZ Inhibitors as Chemical Tools for the Development of Novel Antibiotics. Antibiotics (Basel) 2019; 8:E217. [PMID: 31717975 PMCID: PMC6963470 DOI: 10.3390/antibiotics8040217] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2019] [Revised: 10/26/2019] [Accepted: 11/05/2019] [Indexed: 01/20/2023] Open
Abstract
Antibiotics are potent pharmacological weapons against bacterial pathogens, nevertheless their efficacy is becoming compromised due to the worldwide emergence and spread of multidrug-resistant bacteria or "superbugs". Antibiotic resistance is rising to such dangerous levels that the treatment of bacterial infections is becoming a clinical challenge. Therefore, urgent action is needed to develop new generations of antibiotics that will help tackle this increasing and serious public health problem. Due to its essential role in bacterial cell division, the tubulin-like protein FtsZ has emerged as a promising target for the development of novel antibiotics with new mechanisms of action. This review highlights the medicinal chemistry efforts towards the identification of small-molecule FtsZ inhibitors with antibacterial activity in the last three years.
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Affiliation(s)
- Laura Carro
- Laboratorio de Química Orgánica y Farmacéutica, Departamento de Ciencias Farmacéuticas, Facultad de Farmacia, Universidad de Salamanca, Campus Miguel de Unamuno, 37007 Salamanca, Spain;
- School of Pharmacy, University of East Anglia, Norwich Research Park, Norwich NR4 7TJ, UK
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21
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Yuan W, Yu Z, Song W, Li Y, Fang Z, Zhu B, Li X, Wang H, Hong W, Sun N. Indole-core-based novel antibacterial agent targeting FtsZ. Infect Drug Resist 2019; 12:2283-2296. [PMID: 31413605 PMCID: PMC6662167 DOI: 10.2147/idr.s208757] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2019] [Accepted: 07/03/2019] [Indexed: 12/23/2022] Open
Abstract
Background The prevalence of drug-resistant bacterial infections urges the development of new antibacterial agents that possess a mechanism of action different from traditional antibiotics. FtsZ has been recognized as a key functional protein in bacterial cell division and it is currently believed to be a potential target for the development of novel antibacterial agents. Purpose The primary aim of the study is to screen out an inhibitor targeting at FtsZ and followed to investigate its antibacterial activity and mode of action. Methods Cell-based cell division inhibitory screening assay, antimicrobial susceptibility test, minimum bactericidal concentration assay, time-killing curve determination, FtsZ polymerization assay, GTPase activity assay, and molecular modeling were performed in the present study. Results The screening study from a small library consisting of benzimidazole and indole derivatives discovered a compound (CZ74) with an indole-core structure. The compound exhibited strong cell division inhibitory effect. In addition, CZ74 shows high antibacterial potency against a number of tested Gram-positive bacteria, such as methicillin-resistant Staphylococcus aureus and vancomycin-resistant Enterococcus. The minimum inhibitory concentration values obtained were within the range of 2–4 µg/mL. The results of biological study revealed that CZ74 at 2 µg/mL is able to disrupt FtsZ polymerization and inhibit GTPase activity and cell division. From molecular modeling study, CZ74 is found possibly binding into the interdomain cleft of FtsZ protein and then leads to inhibitory effects. Conclusion This indole-cored molecule CZ74 could be a potential lead compound and could be further developed as a new generation of antibacterial agents targeting FtsZ to combat against multidrug-resistant bacteria.
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Affiliation(s)
- Wenchang Yuan
- The Fifth Affiliated Hospital of Guangzhou Medical University , Guangzhou 510700, People's Republic of China
| | - Zhiwu Yu
- Division of Laboratory Science, Affiliated Cancer Hospital & Institute of Guangzhou Medical University, Guangzhou 510095, People's Republic of China
| | - Weiqi Song
- School of Public Health, Guangzhou Medical University, Guangzhou 511436, People's Republic of China
| | - Yanan Li
- Department of Pharmacy, The Fifth Affiliated Hospital of Sun Yat-sen University, Zhuhai 519000, People's Republic of China
| | - Zhiyuan Fang
- The Fifth Affiliated Hospital of Guangzhou Medical University , Guangzhou 510700, People's Republic of China
| | - Baizhen Zhu
- The Fifth Affiliated Hospital of Guangzhou Medical University , Guangzhou 510700, People's Republic of China
| | - Xiaomei Li
- The Fifth Affiliated Hospital of Guangzhou Medical University , Guangzhou 510700, People's Republic of China
| | - Hao Wang
- School of Pharmacy, Ningxia Medical University, Yinchuan 750004, People's Republic of China
| | - Wei Hong
- School of Chemistry and Chemical Engineering, North Minzu University, Yinchuan 750021, People's Republic of China
| | - Ning Sun
- The Fifth Affiliated Hospital of Guangzhou Medical University , Guangzhou 510700, People's Republic of China.,State Key Laboratory of Chemical Biology and Drug Discovery, and Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, People's Republic of China
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22
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Vedyaykin AD, Ponomareva EV, Khodorkovskii MA, Borchsenius SN, Vishnyakov IE. Mechanisms of Bacterial Cell Division. Microbiology (Reading) 2019. [DOI: 10.1134/s0026261719030159] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
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23
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Sun N, Li M, Cai S, Li Y, Chen C, Zheng Y, Li X, Fang Z, Lv H, Lu YJ. Antibacterial evaluation and mode of action study of BIMQ, a novel bacterial cell division inhibitor. Biochem Biophys Res Commun 2019; 514:1224-1230. [PMID: 31109649 DOI: 10.1016/j.bbrc.2019.05.086] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2019] [Accepted: 05/12/2019] [Indexed: 12/20/2022]
Abstract
The worldwide spreading of antibiotic resistant bacteria is currently an extremely serious health risk and therefore to develop new antibiotics is an urgent need. In the present study, the antibacterial activity of a new indolyl quinolinium compound and its underline mechanism were investigated. The compound shows an outstanding antibacterial activity against the tested Gram-positive bacteria. The MIC values are in the range of 1-4 μg/mL. The elongation of B. subtilis cells indicates that the compound can inhibit cell division effectively. In addition, the biochemical studies prove that the compound is able to disrupt FtsZ polymerization effectively through a stimulatory mechanism. Furthermore, the compound can delay the development of drug resistance mutants.
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Affiliation(s)
- Ning Sun
- The Fifth Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510700, PR China
| | - Ming Li
- The Fifth Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510700, PR China
| | - Senyuan Cai
- School of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, Guangzhou, 510006, PR China
| | - Ying Li
- School of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, Guangzhou, 510006, PR China
| | - Cuicui Chen
- School of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, Guangzhou, 510006, PR China
| | - Yuanyuan Zheng
- School of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, Guangzhou, 510006, PR China; State Key Laboratory of Chemical Biology and Drug Discovery, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, PR China; Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, PR China
| | - Xiaomei Li
- The Fifth Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510700, PR China
| | - Zhiyuan Fang
- The Fifth Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510700, PR China.
| | - Haoran Lv
- The Fifth Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510700, PR China.
| | - Yu-Jing Lu
- School of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, Guangzhou, 510006, PR China; Golden Health (Guangdong) Technology Co., Ltd, PR China.
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24
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Zhou SL, Tang HL, Yao M, Cao SN, Zhuang LY, Cao CS, Shi YH. Synthesis and antibacterial activity of fluorinated carbazoles. CHEMICAL PAPERS 2019. [DOI: 10.1007/s11696-019-00798-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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25
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Cai S, Yuan W, Li Y, Huang X, Guo Q, Tang Z, Fang Z, Lin H, Wong WL, Wong KY, Lu YJ, Sun N. Antibacterial activity of indolyl-quinolinium derivatives and study their mode of action. Bioorg Med Chem 2019; 27:1274-1282. [DOI: 10.1016/j.bmc.2019.02.024] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2018] [Revised: 02/09/2019] [Accepted: 02/13/2019] [Indexed: 01/23/2023]
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26
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Fang Z, Zheng S, Chan KF, Yuan W, Guo Q, Wu W, Lui HK, Lu Y, Leung YC, Chan TH, Wong KY, Sun N. Design, synthesis and antibacterial evaluation of 2,4-disubstituted-6-thiophenyl-pyrimidines. Eur J Med Chem 2019; 161:141-153. [DOI: 10.1016/j.ejmech.2018.10.039] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2018] [Revised: 10/14/2018] [Accepted: 10/15/2018] [Indexed: 01/04/2023]
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27
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Fang Z, Li Y, Zheng Y, Li X, Lu YJ, Yan SC, Wong WL, Chan KF, Wong KY, Sun N. Antibacterial activity and mechanism of action of a thiophenyl substituted pyrimidine derivative. RSC Adv 2019; 9:10739-10744. [PMID: 35515309 PMCID: PMC9062536 DOI: 10.1039/c9ra01001g] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2019] [Accepted: 04/02/2019] [Indexed: 11/21/2022] Open
Abstract
The issue of multidrug resistant bacteria is a worldwide health threat. To develop new antibacterial agents with new mechanisms of action is thus an urgent request to address this antibiotic resistance crisis. In the present study, a new thiophenyl-pyrimidine derivative was prepared and utilized as an effective antibacterial agent against Gram-positive strains. In the tests against MRSA and VREs, the compound showed higher antibacterial potency than that of vancomycin and methicillin. The mode of action is probably attributed to the effective inhibition of FtsZ polymerization, GTPase activity, and bacterial cell division, which cause bactericidal effects. The compound could be a potential candidate for further development as an effective antibiotic to combat drug-resistant bacteria. F20 exhibits strong antibacterial activity through interacting with FtsZ.![]()
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Affiliation(s)
- Zhiyuan Fang
- The Fifth Affiliated Hospital of Guangzhou Medical University
- Guangzhou 510700
- P. R. China
| | - Yanan Li
- Department of Pharmacy
- The Fifth Affiliated Hospital of Sun Yat-sen University
- Zhuhai
- P. R. China
| | - Yuanyuan Zheng
- State Key Laboratory of Chemical Biology and Drug Discovery
- Department of Applied Biology and Chemical Technology
- The Hong Kong Polytechnic University
- Kowloon
- P. R. China
| | - Xiaomei Li
- The Fifth Affiliated Hospital of Guangzhou Medical University
- Guangzhou 510700
- P. R. China
| | - Yu-Jing Lu
- Department of Pharmaceutical Engineering
- Guangdong University of Technology
- Guangzhou 510006
- P. R. China
| | - Siu-Cheong Yan
- State Key Laboratory of Chemical Biology and Drug Discovery
- Department of Applied Biology and Chemical Technology
- The Hong Kong Polytechnic University
- Kowloon
- P. R. China
| | - Wing-Leung Wong
- School of Biotechnology and Health Sciences
- Wuyi University
- Jiangmen 529020
- P. R. China
| | - Kin-Fai Chan
- State Key Laboratory of Chemical Biology and Drug Discovery
- Department of Applied Biology and Chemical Technology
- The Hong Kong Polytechnic University
- Kowloon
- P. R. China
| | - Kwok-yin Wong
- State Key Laboratory of Chemical Biology and Drug Discovery
- Department of Applied Biology and Chemical Technology
- The Hong Kong Polytechnic University
- Kowloon
- P. R. China
| | - Ning Sun
- The Fifth Affiliated Hospital of Guangzhou Medical University
- Guangzhou 510700
- P. R. China
- State Key Laboratory of Chemical Biology and Drug Discovery
- Department of Applied Biology and Chemical Technology
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28
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Competitive Fitness of Essential Gene Knockdowns Reveals a Broad-Spectrum Antibacterial Inhibitor of the Cell Division Protein FtsZ. Antimicrob Agents Chemother 2018; 62:AAC.01231-18. [PMID: 30297366 PMCID: PMC6256756 DOI: 10.1128/aac.01231-18] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2018] [Accepted: 09/01/2018] [Indexed: 12/26/2022] Open
Abstract
To streamline the elucidation of antibacterial compounds' mechanism of action, comprehensive high-throughput assays interrogating multiple putative targets are necessary. However, current chemogenomic approaches for antibiotic target identification have not fully utilized the multiplexing potential of next-generation sequencing. Here, we used Illumina sequencing of transposon insertions to track the competitive fitness of a Burkholderia cenocepacia library containing essential gene knockdowns. Using this method, we characterized a novel benzothiadiazole derivative, 10126109 (C109), with antibacterial activity against B. cenocepacia, for which whole-genome sequencing of low-frequency spontaneous drug-resistant mutants had failed to identify the drug target. By combining the identification of hypersusceptible mutants and morphology screening, we show that C109 targets cell division. Furthermore, fluorescence microscopy of bacteria harboring green fluorescent protein (GFP) cell division protein fusions revealed that C109 prevents divisome formation by altering the localization of the essential cell division protein FtsZ. In agreement with this, C109 inhibited both the GTPase and polymerization activities of purified B. cenocepacia FtsZ. C109 displayed antibacterial activity against Gram-positive and Gram-negative cystic fibrosis pathogens, including Mycobacterium abscessus C109 effectively cleared B. cenocepacia infection in the Caenorhabditis elegans model and exhibited additive interactions with clinically relevant antibiotics. Hence, C109 is an enticing candidate for further drug development.
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29
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Zheng G, Bao Z, Pérez-Juste J, Du R, Liu W, Dai J, Zhang W, Lee LYS, Wong KY. Tuning the Morphology and Chiroptical Properties of Discrete Gold Nanorods with Amino Acids. Angew Chem Int Ed Engl 2018; 57:16452-16457. [DOI: 10.1002/anie.201810693] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2018] [Indexed: 11/09/2022]
Affiliation(s)
- Guangchao Zheng
- State Key Laboratory of Chemical Biology and Drug Discovery; Department of Applied Biology and Chemical Technology; The Hong Kong Polytechnic University; Hunghom Kowloon Hong Kong China
| | - Zhiyong Bao
- Department of Applied Physics; The Hong Kong Polytechnic University; Hunghom Kowloon Hong Kong China
| | - Jorge Pérez-Juste
- Departamento de Química Física y Centro Singular de Investigaciones Biomédicas (CINBIO); Universidad de Vigo; Vigo Spain
| | - Ruolan Du
- State Key Laboratory of Chemical Biology and Drug Discovery; Department of Applied Biology and Chemical Technology; The Hong Kong Polytechnic University; Hunghom Kowloon Hong Kong China
| | - Wei Liu
- State Key Laboratory of Chemical Biology and Drug Discovery; Department of Applied Biology and Chemical Technology; The Hong Kong Polytechnic University; Hunghom Kowloon Hong Kong China
| | - Jiyan Dai
- Department of Applied Physics; The Hong Kong Polytechnic University; Hunghom Kowloon Hong Kong China
| | - Wei Zhang
- Institute of Applied Physics and Computational Mathematics; P. O. Box 8009(28) Beijing 100088 P. R. China
| | - Lawrence Yoon Suk Lee
- State Key Laboratory of Chemical Biology and Drug Discovery; Department of Applied Biology and Chemical Technology; The Hong Kong Polytechnic University; Hunghom Kowloon Hong Kong China
| | - Kwok-Yin Wong
- State Key Laboratory of Chemical Biology and Drug Discovery; Department of Applied Biology and Chemical Technology; The Hong Kong Polytechnic University; Hunghom Kowloon Hong Kong China
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Zheng G, Bao Z, Pérez-Juste J, Du R, Liu W, Dai J, Zhang W, Lee LYS, Wong KY. Tuning the Morphology and Chiroptical Properties of Discrete Gold Nanorods with Amino Acids. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201810693] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Guangchao Zheng
- State Key Laboratory of Chemical Biology and Drug Discovery; Department of Applied Biology and Chemical Technology; The Hong Kong Polytechnic University; Hunghom Kowloon Hong Kong China
| | - Zhiyong Bao
- Department of Applied Physics; The Hong Kong Polytechnic University; Hunghom Kowloon Hong Kong China
| | - Jorge Pérez-Juste
- Departamento de Química Física y Centro Singular de Investigaciones Biomédicas (CINBIO); Universidad de Vigo; Vigo Spain
| | - Ruolan Du
- State Key Laboratory of Chemical Biology and Drug Discovery; Department of Applied Biology and Chemical Technology; The Hong Kong Polytechnic University; Hunghom Kowloon Hong Kong China
| | - Wei Liu
- State Key Laboratory of Chemical Biology and Drug Discovery; Department of Applied Biology and Chemical Technology; The Hong Kong Polytechnic University; Hunghom Kowloon Hong Kong China
| | - Jiyan Dai
- Department of Applied Physics; The Hong Kong Polytechnic University; Hunghom Kowloon Hong Kong China
| | - Wei Zhang
- Institute of Applied Physics and Computational Mathematics; P. O. Box 8009(28) Beijing 100088 P. R. China
| | - Lawrence Yoon Suk Lee
- State Key Laboratory of Chemical Biology and Drug Discovery; Department of Applied Biology and Chemical Technology; The Hong Kong Polytechnic University; Hunghom Kowloon Hong Kong China
| | - Kwok-Yin Wong
- State Key Laboratory of Chemical Biology and Drug Discovery; Department of Applied Biology and Chemical Technology; The Hong Kong Polytechnic University; Hunghom Kowloon Hong Kong China
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Bi F, Song D, Zhang N, Liu Z, Gu X, Hu C, Cai X, Venter H, Ma S. Design, synthesis and structure-based optimization of novel isoxazole-containing benzamide derivatives as FtsZ modulators. Eur J Med Chem 2018; 159:90-103. [DOI: 10.1016/j.ejmech.2018.09.053] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2018] [Revised: 09/19/2018] [Accepted: 09/19/2018] [Indexed: 11/27/2022]
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32
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Zheng YY, Du RL, Cai SY, Liu ZH, Fang ZY, Liu T, So LY, Lu YJ, Sun N, Wong KY. Study of Benzofuroquinolinium Derivatives as a New Class of Potent Antibacterial Agent and the Mode of Inhibition Targeting FtsZ. Front Microbiol 2018; 9:1937. [PMID: 30174667 PMCID: PMC6107709 DOI: 10.3389/fmicb.2018.01937] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2018] [Accepted: 07/31/2018] [Indexed: 12/19/2022] Open
Abstract
New generation of antibacterial agents are urgently needed in order to fight the emergence of multidrug-resistant bacteria. FtsZ is currently identified as a promising target for new types of antimicrobial compounds development because of its conservative characteristics and its essential role played in bacterial cell division. In the present study, the antibacterial activity of a series of benzofuroquinolinium derivatives was investigated. The results show that the compounds possess potent antibacterial activity against drug resistant pathogens including MRSA, VREF and NDM-1 Escherichia coli. Biological studies reveal that the compound is an effective inhibitor that is able to suppress FtsZ polymerization and GTPase activity and thus stopping the cell division and causing cell death. More importantly, this series of compounds shows low cytotoxicity on mammalian cells and therefore they could be new chemotypes for the development of new antibacterial agents targeting the cell-division protein FtsZ.
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Affiliation(s)
- Yuan-Yuan Zheng
- Institute of Natural Medicine & Green Chemistry, School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou, China
- Department of Applied Biology and Chemical Technology and the State Key Laboratory of Chirosciences, The Hong Kong Polytechnic University, Kowloon, Hong Kong
| | - Ruo-Lan Du
- Department of Applied Biology and Chemical Technology and the State Key Laboratory of Chirosciences, The Hong Kong Polytechnic University, Kowloon, Hong Kong
| | - Sen-Yuan Cai
- Institute of Natural Medicine & Green Chemistry, School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou, China
| | - Zhi-Hua Liu
- The Fifth Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Zhi-Yuan Fang
- The Fifth Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Ting Liu
- The Fifth Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Lok-Yan So
- Department of Applied Biology and Chemical Technology and the State Key Laboratory of Chirosciences, The Hong Kong Polytechnic University, Kowloon, Hong Kong
| | - Yu-Jing Lu
- Institute of Natural Medicine & Green Chemistry, School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou, China
- Goldenpomelo Biotechnology Co., Ltd., Meizhou, China
| | - Ning Sun
- Department of Applied Biology and Chemical Technology and the State Key Laboratory of Chirosciences, The Hong Kong Polytechnic University, Kowloon, Hong Kong
- The Fifth Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
- Guangdong Provincial Key Laboratory of New Drug Screening, Guangzhou, China
| | - Kwok-Yin Wong
- Department of Applied Biology and Chemical Technology and the State Key Laboratory of Chirosciences, The Hong Kong Polytechnic University, Kowloon, Hong Kong
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Bi F, Ji S, Venter H, Liu J, Semple SJ, Ma S. Substitution of terminal amide with 1H-1,2,3-triazole: Identification of unexpected class of potent antibacterial agents. Bioorg Med Chem Lett 2018; 28:884-891. [PMID: 29433923 DOI: 10.1016/j.bmcl.2018.02.001] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2017] [Revised: 12/25/2017] [Accepted: 02/01/2018] [Indexed: 11/15/2022]
Abstract
3-Methoxybenzamide (3-MBA) derivatives have been identified as novel class of potent antibacterial agents targeting the bacterial cell division protein FtsZ. As one of isosteres for the amide group, 1,2,3-triazole can mimic the topological and electronic features of the amide, which has gained increasing attention in drug discovery. Based on these considerations, we prepared a series of 1H-1,2,3-triazole-containing 3-MBA analogues via isosteric replacement of the terminal amide with triazole, which had increased antibacterial activity. This study demonstrated the possibility of developing the 1H-1,2,3-triazole group as a terminal amide-mimetic element which was capable of both keeping and modulating amide-related bioactivity. Surprisingly, a different action mode of these new 1H-1,2,3-triazole-containing analogues was observed, which could open new opportunities for the development of antibacterial agents.
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Affiliation(s)
- Fangchao Bi
- Department of Medicinal Chemistry, Key Laboratory of Chemical Biology (Ministry of Education), School of Pharmaceutical Sciences, Shandong University, 44 West Culture Road, Jinan 250012, China
| | - Shengli Ji
- ReaLi Tide Biological Technology (Weihai) Co. Ltd., East Longhai Road & South Yangguang Road, Nanhai New District, Weihai 264207, China
| | - Henrietta Venter
- School of Pharmacy & Medical Sciences, Sansom Institute for Health Research, University of South Australia, GPO Box 2471, Adelaide 5001, Australia
| | - Jingru Liu
- Department of Medicinal Chemistry, Key Laboratory of Chemical Biology (Ministry of Education), School of Pharmaceutical Sciences, Shandong University, 44 West Culture Road, Jinan 250012, China
| | - Susan J Semple
- School of Pharmacy & Medical Sciences, Sansom Institute for Health Research, University of South Australia, GPO Box 2471, Adelaide 5001, Australia
| | - Shutao Ma
- Department of Medicinal Chemistry, Key Laboratory of Chemical Biology (Ministry of Education), School of Pharmaceutical Sciences, Shandong University, 44 West Culture Road, Jinan 250012, China.
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Sun N, Zheng YY, Du RL, Cai SY, Zhang K, So LY, Cheung KC, Zhuo C, Lu YJ, Wong KY. New application of tiplaxtinin as an effective FtsZ-targeting chemotype for an antimicrobial study. MEDCHEMCOMM 2017; 8:1909-1913. [PMID: 30108711 PMCID: PMC6072346 DOI: 10.1039/c7md00387k] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/29/2017] [Accepted: 08/17/2017] [Indexed: 12/21/2022]
Abstract
The filamenting temperature-sensitive mutant Z (FtsZ) protein is generally recognized as a promising antimicrobial drug target. In the present study, a small organic molecule (tiplaxtinin) was identified for the first time as an excellent cell division inhibitor by using a cell-based screening approach from a library with 250 compounds. Tiplaxtinin possesses potent antibacterial activity against Gram-positive pathogens. Both in vitro and in vivo results reveal that the compound is able to disrupt dynamic assembly of FtsZ and Z-ring formation effectively through the mechanism of stimulating FtsZ polymerization and impairing GTPase activity.
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Affiliation(s)
- Ning Sun
- Department of Applied Biology and Chemical Technology and the State Key Laboratory of Chirosciences , The Hong Kong Polytechnic University , Kowloon , Hong Kong SAR , P.R. China . ; Tel: +852 34008686
| | - Yuan-Yuan Zheng
- Institute of Natural Medicine and Green Chemistry , School of Chemical Engineering and Light Industry , Guangdong University of Technology , Guangzhou 510006 , P.R. China . ; Tel: +86 20 39322235
| | - Ruo-Lan Du
- Department of Applied Biology and Chemical Technology and the State Key Laboratory of Chirosciences , The Hong Kong Polytechnic University , Kowloon , Hong Kong SAR , P.R. China . ; Tel: +852 34008686
| | - Sen-Yuan Cai
- Institute of Natural Medicine and Green Chemistry , School of Chemical Engineering and Light Industry , Guangdong University of Technology , Guangzhou 510006 , P.R. China . ; Tel: +86 20 39322235
| | - Kun Zhang
- Institute of Natural Medicine and Green Chemistry , School of Chemical Engineering and Light Industry , Guangdong University of Technology , Guangzhou 510006 , P.R. China . ; Tel: +86 20 39322235
| | - Lok-Yan So
- Department of Applied Biology and Chemical Technology and the State Key Laboratory of Chirosciences , The Hong Kong Polytechnic University , Kowloon , Hong Kong SAR , P.R. China . ; Tel: +852 34008686
| | - Kwan-Choi Cheung
- Department of Applied Biology and Chemical Technology and the State Key Laboratory of Chirosciences , The Hong Kong Polytechnic University , Kowloon , Hong Kong SAR , P.R. China . ; Tel: +852 34008686
| | - Chao Zhuo
- State Key Laboratory of Respiratory Diseases , The First Affiliated Hospital of Guangzhou Medical University , Guangzhou , P.R. China
| | - Yu-Jing Lu
- Institute of Natural Medicine and Green Chemistry , School of Chemical Engineering and Light Industry , Guangdong University of Technology , Guangzhou 510006 , P.R. China . ; Tel: +86 20 39322235
| | - Kwok-Yin Wong
- Department of Applied Biology and Chemical Technology and the State Key Laboratory of Chirosciences , The Hong Kong Polytechnic University , Kowloon , Hong Kong SAR , P.R. China . ; Tel: +852 34008686
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