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Basak P, Dastidar DG, Ghosh D, Chakraborty T, Sau S, Chakrabarti G. Staphylococcus aureus major cell division protein FtsZ assembly is inhibited by silibinin, a natural flavonolignan that also blocked bacterial growth and biofilm formation. Int J Biol Macromol 2024; 279:135252. [PMID: 39222779 DOI: 10.1016/j.ijbiomac.2024.135252] [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: 05/22/2024] [Revised: 08/29/2024] [Accepted: 08/30/2024] [Indexed: 09/04/2024]
Abstract
The bacterial cell division protein FtsZ has been considered a potential therapeutic target due to its rapid treadmilling that induces cellular wall construction in bacteria. The current study discovered a novel antimicrobial compound, silibinin, a natural flavonolignan and its impact on the recombinant S. aureus FtsZ (SaFtsZ). Silibinin inhibited S. aureus Newman growth in a dose-dependent manner. The IC50 and MIC values for silibinin were 75 μM and 200 μM, respectively. It had no cytotoxicity against HEK293 cells in vitro. Silibinin also enlarged the bacterial cell morphology by ∼40 folds and showed antibiofilm property. It perturbed the S. aureus membrane potential both at IC50 conc. and at MIC conc. Further, it inhibited both the polymerization and GTPase activity of SaFtsZ. It did not inhibit tubulin assembly, a eukaryotic FtsZ homolog. A fluorescence quenching study yielded the Kd value for SaFtsZ-Silibinin interaction and binding stoichiometry 0.857 ± 0.188 μM and 1:1, respectively. Both in silico study and competition assay indicated that silibinin binds at the GTP binding site on SaFtsZ. The Ki value for the silibinin-mediated inhibition of SaFtsZ was 8.8 μM. Therefore, these findings have comprehensively shown the antimicrobial behavior of silibinin on S. aureus Newman cells targeting SaFtsZ.
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Affiliation(s)
- Prithvi Basak
- Department of Biotechnology, Dr. B. C. Guha Centre for Genetic Engineering and Biotechnology, University of Calcutta, 35 Ballygunge Circular Road, Kolkata, WB 700 019, India
| | - Debabrata Ghosh Dastidar
- Guru Nanak Institute of Pharmaceutical Science & Technology, 157/F Nilgunj Road, Panihati, Kolkata 700114, West Bengal, India
| | - Dipanjan Ghosh
- Department of Biotechnology, Dr. B. C. Guha Centre for Genetic Engineering and Biotechnology, University of Calcutta, 35 Ballygunge Circular Road, Kolkata, WB 700 019, India
| | - Tushar Chakraborty
- Department of Biological Sciences, Bose Institute, Kolkata 700091, West Bengal, India
| | - Subrata Sau
- Department of Biological Sciences, Bose Institute, Kolkata 700091, West Bengal, India
| | - Gopal Chakrabarti
- Department of Biotechnology, Dr. B. C. Guha Centre for Genetic Engineering and Biotechnology, University of Calcutta, 35 Ballygunge Circular Road, Kolkata, WB 700 019, India.
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2
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Wang YT, Liu LT, Hou B, Yao CM, Wang XF, Lu B. Recent advances in studies on FtsZ inhibitors. Biochem Pharmacol 2024; 230:116551. [PMID: 39307317 DOI: 10.1016/j.bcp.2024.116551] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2024] [Revised: 09/10/2024] [Accepted: 09/19/2024] [Indexed: 10/02/2024]
Abstract
With the abuse of antibiotics, multidrug resistant strains continue to emerge and spread rapidly. Therefore, there is an urgent need to develop new antimicrobial drugs. As a highly conserved cell division protein in bacteria, filamenting temperature-sensitive mutant Z (FtsZ) has been identified as a potential antimicrobial target. This paper reviews the structure, function, and action mechanism of FtsZ and a variety of natural and synthetic compounds targeting FtsZ, including 3-MBA derivatives, taxane derivatives, cinnamaldehyde, curcumin, quinoline and quinazoline derivatives, aromatic compounds, purpurin, and totarol. From these studies, FtsZ has a clear supporting role in the field of antimicrobial drug discovery. The urgent need and interest of antibacterial drugs will contribute to the discovery of new clinical drugs targeting FtsZ.
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Affiliation(s)
- Yan-Ting Wang
- Department of Biochemical Pharmacy, School of Pharmacy, Second Military Medical University/Naval Medical University, Shanghai 200433, PR China.
| | - Lan-Tian Liu
- Department of Biochemical Pharmacy, School of Pharmacy, Second Military Medical University/Naval Medical University, Shanghai 200433, PR China
| | - Bo Hou
- School of Life Science and Technology, Xidian University, Xi'an 710126, PR China
| | - Chun-Meng Yao
- Department of Biochemical Pharmacy, School of Pharmacy, Second Military Medical University/Naval Medical University, Shanghai 200433, PR China
| | - Xu-Fang Wang
- Department of Biochemical Pharmacy, School of Pharmacy, Second Military Medical University/Naval Medical University, Shanghai 200433, PR China
| | - Bin Lu
- Department of Biochemical Pharmacy, School of Pharmacy, Second Military Medical University/Naval Medical University, Shanghai 200433, PR China.
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3
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Zhang H, Mu R, Wang Z, Peng S, Yang XY, Qin X. Trans-Cinnamaldehyde Inhibition of Pyruvate Dehydrogenase: Effects on Streptococcus mutans Carbohydrate Metabolism. J Proteome Res 2024; 23:3682-3695. [PMID: 39037832 DOI: 10.1021/acs.jproteome.4c00382] [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] [Indexed: 07/24/2024]
Abstract
Dental caries is a chronic oral infectious disease, and Streptococcus mutans (S. mutans) plays an important role in the formation of dental caries. Trans-cinnamaldehyde (CA) exhibits broad-spectrum antibacterial activity; however, its target and mechanism of action of CA on S. mutans needs to be further explored. In this study, it was verified that CA could inhibit the growth and biofilm formation of S. mutans. Further proteomic analysis identified 33, 55, and 78 differentially expressed proteins (DEPs) in S. mutans treated with CA for 1, 2, and 4 h, respectively. Bioinformatics analysis showed that CA interfered with carbohydrate metabolism, glycolysis, pyruvate metabolism, and the TCA cycle, as well as amino acid metabolism of S. mutans. Protein interactions suggested that pyruvate dehydrogenase (PDH) plays an important role in the antibacterial effect of CA. Moreover, the upstream and downstream pathways related to PDH were verified by various assays, and the results proved that CA not only suppressed the glucose and sucrose consumption and inhibited glucosyltransferase (GTF) and lactate dehydrogenase (LDH) activities but also decreased the ATP production. Interestingly, the protein interaction, qRT-PCR, and molecular docking analysis showed that PDH might be the target of CA to fight S. mutans. In summary, the study shows that CA interferes with the carbohydrate metabolism of bacteria by inhibiting glycolysis and the tricarboxylic acid (TCA) cycle via binding to PDH, which verifies that PDH is a potential target for the development of new drugs against S. mutans.
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Affiliation(s)
- Hanyi Zhang
- School of Biological Engineering, Zhuhai Campus of Zunyi Medical University, Guangdong 519041, China
| | - Ran Mu
- Department of Clinical Medicine, The Fifth Clinical Institute, Zhuhai Campus of Zunyi Medical University, Guangdong 519041, China
| | - Zhengxiao Wang
- School of Biological Engineering, Zhuhai Campus of Zunyi Medical University, Guangdong 519041, China
| | - Shuting Peng
- School of Biological Engineering, Zhuhai Campus of Zunyi Medical University, Guangdong 519041, China
| | - Xiao-Yan Yang
- School of Biological Engineering, Zhuhai Campus of Zunyi Medical University, Guangdong 519041, China
| | - Xiaofei Qin
- School of Biological Engineering, Zhuhai Campus of Zunyi Medical University, Guangdong 519041, China
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Wang L, Xie Z, Ruan W, Lan F, Qin Q, Tu Y, Zhu W, Zhao J, Zheng P. In silico method and bioactivity evaluation to discover novel antimicrobial agents targeting FtsZ protein: Machine learning, virtual screening and antibacterial mechanism study. NAUNYN-SCHMIEDEBERG'S ARCHIVES OF PHARMACOLOGY 2024:10.1007/s00210-024-03276-4. [PMID: 39043879 DOI: 10.1007/s00210-024-03276-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/07/2024] [Accepted: 07/02/2024] [Indexed: 07/25/2024]
Abstract
This research paper utilizes a fused-in-silico approach alongside bioactivity evaluation to identify active FtsZ inhibitors for drug discovery. Initially, ROC-guided machine learning was employed to obtain almost 13182 compounds from three libraries. After conducting virtual screening to assess the affinity of 2621 acquired compounds, cluster analysis and bonding model analysis led to the discovery of five hit compounds. Additionally, antibacterial activity assays and time-killing kinetics revealed that T3995 could eliminate Staphylococcus aureus ATCC6538 and Bacillus subtilis ATCC9732, with MIC values of 32 and 2 μg/mL. Further morphology and FtsZ polymerization assays indicated that T3995 could be an antimicrobial inhibitor by targeting FtsZ protein. Moreover, hemolytic toxicity evaluation demonstrated that T3995 is safe at or below 16 ug/mL concentration. Additionally, bonding model analysis explained how the compound T3995 can display antimicrobial activity by targeting the FtsZ protein. In conclusion, this study presents a promising FtsZ inhibitor that was discovered through a fused computer method and bioactivity evaluation.
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Affiliation(s)
- Linxiao Wang
- Jiangxi Provincial Key Laboratory of Drug Design and Evaluation, School of Pharmacy, Jiangxi Science &Technology, Normal University, Nanchang, 330013, China.
| | - Zhouling Xie
- Jiangxi Provincial Key Laboratory of Drug Design and Evaluation, School of Pharmacy, Jiangxi Science &Technology, Normal University, Nanchang, 330013, China
| | - Wei Ruan
- Jiangxi Provincial Key Laboratory of Drug Design and Evaluation, School of Pharmacy, Jiangxi Science &Technology, Normal University, Nanchang, 330013, China
| | - Feixiang Lan
- Jiangxi Provincial Key Laboratory of Drug Design and Evaluation, School of Pharmacy, Jiangxi Science &Technology, Normal University, Nanchang, 330013, China
| | - Qi Qin
- Jiangxi Provincial Key Laboratory of Drug Design and Evaluation, School of Pharmacy, Jiangxi Science &Technology, Normal University, Nanchang, 330013, China
| | - Yuanbiao Tu
- Cancer Research Center, Jiangxi University of Traditional Chinese Medicine, Nanchang, 330004, China
| | - Wufu Zhu
- Jiangxi Provincial Key Laboratory of Drug Design and Evaluation, School of Pharmacy, Jiangxi Science &Technology, Normal University, Nanchang, 330013, China
| | - Jing Zhao
- Jiangxi Provincial Key Laboratory of Drug Design and Evaluation, School of Pharmacy, Jiangxi Science &Technology, Normal University, Nanchang, 330013, China
| | - Pengwu Zheng
- Jiangxi Provincial Key Laboratory of Drug Design and Evaluation, School of Pharmacy, Jiangxi Science &Technology, Normal University, Nanchang, 330013, China.
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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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6
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Peng H, Chu C, Jin L, Zhang J, Yang Z, Zhu L, Yang D, Zhao Z. Study on Oleum cinnamomi Inhibiting Cutibacterium acnes and Its Covalent Inhibition Mechanism. Molecules 2024; 29:3165. [PMID: 38999117 PMCID: PMC11243273 DOI: 10.3390/molecules29133165] [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: 05/28/2024] [Revised: 06/22/2024] [Accepted: 07/01/2024] [Indexed: 07/14/2024] Open
Abstract
Oleum cinnamomi (OCM) is a volatile component of the Cinnamomum cassia Presl in the Lauraceae family, which displays broad-spectrum antibacterial properties. It has been found that OCM has a significant inhibitory effect against Cutibacterium acnes (C. acnes), but the precise target and molecular mechanism are still not fully understood. In this study, the antibacterial activity of OCM against C. acnes and its potential effect on cell membranes were elucidated. Metabolomics methods were used to reveal metabolic pathways, and proteomics was used to explore the targets of OCM inhibiting C. acnes. The yield of the OCM was 3.3% (w/w). A total of 19 compounds were identified, representing 96.213% of the total OCM composition, with the major constituents being phenylpropanoids (36.84%), sesquiterpenoids (26.32%), and monoterpenoids (15.79%). The main component identified was trans-cinnamaldehyde (85.308%). The minimum inhibitory concentration (MIC) and minimum bactericidal concentration (MBC) of OCM on C. acnes were 60 µg/mL and 180 µg/mL, respectively. The modified proteomics results indicate that cinnamaldehyde was the main bioactive ingredient within OCM, which covalently modifies the ABC transporter adenosine triphosphate (ATP)-binding protein and nicotinamide adenine dinucleotide (NADH)-quinone oxidoreductase, hindering the amino acid transport process, and disrupting the balance between NADH and nicotinamide adenine dinucleoside phosphorus (NAD+), thereby hindering energy metabolism. We have reported for the first time that OCM exerts an antibacterial effect by covalent binding of cinnamaldehyde to target proteins, providing potential and interesting targets to explore new control strategies for gram-positive anaerobic bacteria.
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Affiliation(s)
- Huayong Peng
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 511400, China
- School of Pharmaceutical Sciences, Jishou University, Jishou 416000, China
| | - Chenliang Chu
- School of Food and Pharmaceutical Engineering, Zhaoqing University, Zhaoqing 526060, China
| | - Lu Jin
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 511400, China
| | - Jianing Zhang
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 511400, China
| | - Zilei Yang
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 511400, China
| | - Longping Zhu
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 511400, China
| | - Depo Yang
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 511400, China
| | - Zhimin Zhao
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 511400, China
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Xie Z, Ruan W, Guo J, Li Y, Zhou S, Zhao J, Wan L, Xu S, Tang Q, Zheng P, Wang L, Zhu W. T5S1607 identified as a antibacterial FtsZ inhibitor:Virtual screening combined with bioactivity evaluation for the drug discovery. Comput Biol Chem 2024; 108:108006. [PMID: 38142532 DOI: 10.1016/j.compbiolchem.2023.108006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2023] [Revised: 12/08/2023] [Accepted: 12/13/2023] [Indexed: 12/26/2023]
Abstract
Due to antibiotic overuse, many bacteria have developed resistance, creating an urgent need for novel antimicrobial agents. It has been established that the filamentous temperature-sensitive mutant Z (FtsZ) of the bacterial cell division protein is an effective and promising antibacterial target. In this study, the optimal proteins were assessed by early recognition ability and the processed compound libraries were virtually screened using Vina. This effort resulted in the identification of 14 potentially active antimicrobial compounds. Among them, the compound T5S1607 demonstrated remarkable antibacterial efficacy against Bacillus subtilis ATCC9732 (MIC = 1 μg/mL) and Staphylococcus aureus ATC5C6538 (MIC = 4 μg/mL). Furthermore, in vitro experiments demonstrated that the selected compound T5S1607 rapidly killed bacteria and induced FtsZ protein aggregation, preventing bacterial division and leading to bacterial death. Additionally, cell toxicity and hemolysis experiments indicate that compound T5S1607 exhibits minimal toxicity to LO2 cells and shows no significant hemolytic effects on mammalian cells in vitro at the MIC concentration range. All the results indicate that compound T5S1607 is a promising antibacterial agent and a potential FtsZ inhibitor. In conclusion, this work successfully discovered FtsZ inhibitors with good activity through the virtual screening drug discovery process.
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Affiliation(s)
- Zhouling Xie
- Jiangxi Provincial Key Laboratory of Drug Design and Evaluation, School of Pharmacy, Jiangxi Science & Technology Normal University, Nanchang, Jiangxi 330013, China
| | - Wei Ruan
- Jiangxi Provincial Key Laboratory of Drug Design and Evaluation, School of Pharmacy, Jiangxi Science & Technology Normal University, Nanchang, Jiangxi 330013, China
| | - Jiaojiao Guo
- Jiangxi Provincial Key Laboratory of Drug Design and Evaluation, School of Pharmacy, Jiangxi Science & Technology Normal University, Nanchang, Jiangxi 330013, China
| | - Yan Li
- Jiangxi Provincial Key Laboratory of Drug Design and Evaluation, School of Pharmacy, Jiangxi Science & Technology Normal University, Nanchang, Jiangxi 330013, China
| | - Siqi Zhou
- Jiangxi Provincial Key Laboratory of Drug Design and Evaluation, School of Pharmacy, Jiangxi Science & Technology Normal University, Nanchang, Jiangxi 330013, China
| | - Jing Zhao
- Jiangxi Provincial Key Laboratory of Drug Design and Evaluation, School of Pharmacy, Jiangxi Science & Technology Normal University, Nanchang, Jiangxi 330013, China
| | - Li Wan
- Jiangxi Provincial Key Laboratory of Drug Design and Evaluation, School of Pharmacy, Jiangxi Science & Technology Normal University, Nanchang, Jiangxi 330013, China
| | - Shan Xu
- Jiangxi Provincial Key Laboratory of Drug Design and Evaluation, School of Pharmacy, Jiangxi Science & Technology Normal University, Nanchang, Jiangxi 330013, China
| | - Qidong Tang
- Jiangxi Provincial Key Laboratory of Drug Design and Evaluation, School of Pharmacy, Jiangxi Science & Technology Normal University, Nanchang, Jiangxi 330013, China
| | - Pengwu Zheng
- Jiangxi Provincial Key Laboratory of Drug Design and Evaluation, School of Pharmacy, Jiangxi Science & Technology Normal University, Nanchang, Jiangxi 330013, China
| | - Linxiao Wang
- Jiangxi Provincial Key Laboratory of Drug Design and Evaluation, School of Pharmacy, Jiangxi Science & Technology Normal University, Nanchang, Jiangxi 330013, China.
| | - Wufu Zhu
- Jiangxi Provincial Key Laboratory of Drug Design and Evaluation, School of Pharmacy, Jiangxi Science & Technology Normal University, Nanchang, Jiangxi 330013, China.
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Romero-Montero A, Melgoza-Ramírez LJ, Ruíz-Aguirre JA, Chávez-Santoscoy A, Magaña JJ, Cortés H, Leyva-Gómez G, Del Prado-Audelo ML. Essential-Oils-Loaded Biopolymeric Nanoparticles as Strategies for Microbial and Biofilm Control: A Current Status. Int J Mol Sci 2023; 25:82. [PMID: 38203252 PMCID: PMC10778842 DOI: 10.3390/ijms25010082] [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: 11/09/2023] [Revised: 12/01/2023] [Accepted: 12/06/2023] [Indexed: 01/12/2024] Open
Abstract
The emergence of bacterial strains displaying resistance to the currently available antibiotics is a critical global concern. These resilient bacteria can form biofilms that play a pivotal role in the failure of bacterial infection treatments as antibiotics struggle to penetrate all biofilm regions. Consequently, eradicating bacteria residing within biofilms becomes considerably more challenging than their planktonic counterparts, leading to persistent and chronic infections. Among various approaches explored, essential oils loaded in nanoparticles based on biopolymers have emerged, promising strategies that enhance bioavailability and biological activities, minimize side effects, and control release through regulated pharmacokinetics. Different available reviews analyze nanosystems and essential oils; however, usually, their main goal is the analysis of their antimicrobial properties, and progress in biofilm combat is rarely discussed, or it is not the primary objective. This review aims to provide a global vision of biofilm conformation and describes mechanisms of action attributed to each EO. Furthermore, we present a comprehensive overview of the latest developments in biopolymeric nanoparticles research, especially in chitosan- and zein-based nanosystems, targeting multidrug-resistant bacteria in both their sessile and biofilm forms, which will help to design precise strategies for combating biofilms.
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Affiliation(s)
- Alejandra Romero-Montero
- Departamento de Farmacia, Facultad de Química, Universidad Nacional Autónoma de México, Mexico City 04510, Mexico; (A.R.-M.); (G.L.-G.)
| | - Luis Javier Melgoza-Ramírez
- Tecnologico de Monterrey, Escuela de Ingeniería y Ciencias, Mexico City 14380, Mexico; (L.J.M.-R.); (J.A.R.-A.); (J.J.M.)
| | - Jesús Augusto Ruíz-Aguirre
- Tecnologico de Monterrey, Escuela de Ingeniería y Ciencias, Mexico City 14380, Mexico; (L.J.M.-R.); (J.A.R.-A.); (J.J.M.)
| | - Alejandra Chávez-Santoscoy
- Tecnologico de Monterrey, Escuela de Ingeniería y Ciencias, Campus Monterrey, Ave. Eugenio Garza Sada 2501 Sur, Monterrey 64849, Mexico;
| | - Jonathan Javier Magaña
- Tecnologico de Monterrey, Escuela de Ingeniería y Ciencias, Mexico City 14380, Mexico; (L.J.M.-R.); (J.A.R.-A.); (J.J.M.)
- Laboratorio de Medicina Genómica, Departamento de Genómica, Instituto Nacional de Rehabilitación Luis Guillermo Ibarra Ibarra, Mexico City 14389, Mexico;
| | - Hernán Cortés
- Laboratorio de Medicina Genómica, Departamento de Genómica, Instituto Nacional de Rehabilitación Luis Guillermo Ibarra Ibarra, Mexico City 14389, Mexico;
| | - Gerardo Leyva-Gómez
- Departamento de Farmacia, Facultad de Química, Universidad Nacional Autónoma de México, Mexico City 04510, Mexico; (A.R.-M.); (G.L.-G.)
| | - María Luisa Del Prado-Audelo
- Tecnologico de Monterrey, Escuela de Ingeniería y Ciencias, Mexico City 14380, Mexico; (L.J.M.-R.); (J.A.R.-A.); (J.J.M.)
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9
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Chen L, Li X, Wang Y, Guo Z, Wang G, Zhang Y. The performance of plant essential oils against lactic acid bacteria and adverse microorganisms in silage production. FRONTIERS IN PLANT SCIENCE 2023; 14:1285722. [PMID: 38023889 PMCID: PMC10667483 DOI: 10.3389/fpls.2023.1285722] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/30/2023] [Accepted: 10/25/2023] [Indexed: 12/01/2023]
Abstract
Plant essential oils have played an important role in the field of antibiotic alternatives because of their efficient bacteriostatic and fungistatic activity. As plant essential oils are widely used, their activity to improve the quality of plant silage has also been explored. This review expounds on the active ingredients of essential oils, their bacteriostatic and fungistatic activity, and mechanisms, as well as discusses the application of plant essential oils in plant silage fermentation, to provide a reference for the development and application of plant essential oils as silage additives in plant silage fermentation feed.
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Affiliation(s)
- Lijuan Chen
- College of Animal Science and Technology, Anhui Agricultural University, Hefei, China
| | - Xi Li
- College of Animal Science and Technology, Anhui Agricultural University, Hefei, China
| | - Yili Wang
- College of Animal Science and Technology, Anhui Agricultural University, Hefei, China
| | - Zelin Guo
- College of Animal Science and Technology, Anhui Agricultural University, Hefei, China
| | - Guoming Wang
- College of Animal Science and Technology, Anhui Agricultural University, Hefei, China
| | - Yunhua Zhang
- College of Resources and Environment, Anhui Agricultural University, Hefei, China
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10
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Zhao Y, Wang Y, Zhang Z, Li H. Advances in Controllable Release Essential Oil Microcapsules and Their Promising Applications. Molecules 2023; 28:4979. [PMID: 37446642 DOI: 10.3390/molecules28134979] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2023] [Revised: 06/13/2023] [Accepted: 06/16/2023] [Indexed: 07/15/2023] Open
Abstract
Essential oils (EOs) have emerged as natural and popular ingredients used in the preparation of safe and sustainable products because of their unique characteristics, such as antibacterial and antioxidant activity. However, due to their high volatility, poorly solubility in water, and susceptibility to degradation and oxidation, the application of EOs is greatly limited. One of the promising strategies for overcoming these restrictions is encapsulation, which involves in the entrapment of EOs inside biocompatible materials to utilize their controllable release and good bioavailability. In this review, the microencapsulation of the controllable release EOs and their applications are investigated. The focus is on the antimicrobial mechanism of various EOs on different bacteria and fungi, release mechanism of microencapsulated EOs, and preparation research progress of the controllable EOs microcapsules. In addition, their applications are introduced in relation to the food, textiles, agriculture, and medical fields.
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Affiliation(s)
- Yana Zhao
- School of Chemistry and Chemical Engineering, North University of China, Taiyuan 030051, China
| | - Yanbo Wang
- School of Chemistry and Chemical Engineering, North University of China, Taiyuan 030051, China
| | - Zhijun Zhang
- School of Chemistry and Chemical Engineering, North University of China, Taiyuan 030051, China
| | - Huizhen Li
- School of Chemistry and Chemical Engineering, North University of China, Taiyuan 030051, China
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11
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Sun L, Van Loey A, Buvé C, Michiels CW. Experimental Evolution Reveals a Novel Ene Reductase That Detoxifies α,β-Unsaturated Aldehydes in Listeria monocytogenes. Microbiol Spectr 2023; 11:e0487722. [PMID: 37036358 PMCID: PMC10269891 DOI: 10.1128/spectrum.04877-22] [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: 11/30/2022] [Accepted: 03/17/2023] [Indexed: 04/11/2023] Open
Abstract
The plant essential oil component trans-cinnamaldehyde (t-CIN) exhibits antibacterial activity against a broad range of foodborne pathogenic bacteria, including L. monocytogenes, but its mode of action is not fully understood. In this study, several independent mutants of L. monocytogenes with increased t-CIN tolerance were obtained via experimental evolution. Whole-genome sequencing (WGS) analysis revealed single-nucleotide-variation mutations in the yhfK gene, encoding an oxidoreductase of the short-chain dehydrogenases/reductases superfamily, in each mutant. The deletion of yhfK conferred increased sensitivity to t-CIN and several other α,β-unsaturated aldehydes, including trans-2-hexenal, citral, and 4-hydroxy-2-nonenal. The t-CIN tolerance of the deletion mutant was restored via genetic complementation with yhfK. Based on a gas chromatography-mass spectrometry (GC-MS) analysis of the culture supernatants, it is proposed that YhfK is an ene reductase that converts t-CIN to 3-phenylpropanal by reducing the C=C double bond of the α,β-unsaturated aldehyde moiety. YhfK homologs are widely distributed in Bacteria, and the deletion of the corresponding homolog in Bacillus subtilis also caused increased sensitivity to t-CIN and trans-2-hexenal, suggesting that this protein may have a conserved function to protect bacteria against toxic α,β-unsaturated aldehydes in their environments. IMPORTANCE While bacterial resistance against clinically used antibiotics has been well studied, less is known about resistance against other antimicrobials, such as natural compounds that could replace traditional food preservatives. In this work, we report that the food pathogen Listeria monocytogenes can rapidly develop an elevated tolerance against t-cinnamaldehyde, a natural antimicrobial from cinnamon, by single base pair changes in the yhfK gene. The enzyme encoded by this gene is an oxidoreductase, but its substrates and precise role were hitherto unknown. We demonstrate that the enzyme reduces the double bond in t-cinnamaldehyde and thereby abolishes its antibacterial activity. Furthermore, the mutations linked to t-CIN tolerance increased bacterial sensitivity to a related compound, suggesting that they modify the substrate specificity of the enzyme. Since the family of oxidoreductases to which YhfK belongs is of great interest in the mediation of stereospecific reactions in biocatalysis, our work may also have unanticipated application potential in this field.
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Affiliation(s)
- Lei Sun
- Department of Microbial and Molecular Systems and Leuven Food Science and Nutrition Research Centre (LFoRCe), KU Leuven, Leuven, Belgium
| | - Ann Van Loey
- Department of Microbial and Molecular Systems and Leuven Food Science and Nutrition Research Centre (LFoRCe), KU Leuven, Leuven, Belgium
| | - Carolien Buvé
- Department of Microbial and Molecular Systems and Leuven Food Science and Nutrition Research Centre (LFoRCe), KU Leuven, Leuven, Belgium
| | - Chris W. Michiels
- Department of Microbial and Molecular Systems and Leuven Food Science and Nutrition Research Centre (LFoRCe), KU Leuven, Leuven, Belgium
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12
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Akshaya BS, Premraj K, Iswarya C, Muthusamy S, Ibrahim HIM, Khalil HE, Gunasekaran V, Vickram S, Senthil Kumar V, Palanisamy S, Thirugnanasambantham K. Cinnamaldehyde inhibits Enterococcus faecalis biofilm formation and promotes clearance of its colonization by modulation of phagocytes in vitro. Microb Pathog 2023:106157. [PMID: 37268049 DOI: 10.1016/j.micpath.2023.106157] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2023] [Revised: 05/11/2023] [Accepted: 05/15/2023] [Indexed: 06/04/2023]
Abstract
The nosocomial pathogen, Enterococcus faecalis plays a crucial role in the pathogenesis of variety of infections including endocarditis, urinary tract, and recurrent root canal infections. Primary virulence factors of E. faecalis such as biofilm formation, gelatinase production and suppression of host innate immune response can severely harm host tissue. Thus, novel treatments are needed to prevent E. faecalis biofilm development and pathogenicity due to the worrisome rise in enterococcal resistance to antibiotics. The primary phytochemical in cinnamon essential oils, cinnamaldehyde, has shown promising efficacy against a variety of infections. Here, we looked into how cinnamaldehyde affected the growth of biofilms, the activity of the enzyme gelatinase, and gene expression in E. faecalis. In addition, we looked at the influence of cinnamaldehyde on RAW264.7 macrophages' interaction with biofilm and planktonic E. faecalis in terms of intracellular bacterial clearance, NO generation, and macrophage migration in vitro. According to our research, cinnamaldehyde attenuated the biofilm formation potential of planktonic E. faecalis and gelatinase activity of the biofilm at non-lethal concentrations. The expression of the quorum sensing fsr locus and its downstream gene gelE in biofilms were also found to be significantly downregulated by cinnamaldehyde. Results also demonstrated that cinnamaldehyde treatment increased NO production, intracellular bacterial clearance, and migration of RAW264.7 macrophages in presence of both biofilm and planktonic E. faecalis. Overall these results suggest that cinnamaldehyde has the ability to inhibit E. faecalis biofilm formation and modulate host innate immune response for better clearance of bacterial colonization.
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Affiliation(s)
- Balasubramanian Sennammal Akshaya
- Pondicherry Centre for Biological Science and Educational Trust, Sundararaja Nagar, Pondicherry, 605004, India; Department of Biotechnology, Vels Institute of Science, Technology and Advanced Studies, Chennai, Tamil Nadu, India
| | - Kumar Premraj
- Pondicherry Centre for Biological Science and Educational Trust, Sundararaja Nagar, Pondicherry, 605004, India
| | - Christian Iswarya
- Pondicherry Centre for Biological Science and Educational Trust, Sundararaja Nagar, Pondicherry, 605004, India
| | - Suganthi Muthusamy
- Department of Biotechnology, Vels Institute of Science, Technology and Advanced Studies, Chennai, Tamil Nadu, India
| | - Hairul-Islam Mohamed Ibrahim
- Pondicherry Centre for Biological Science and Educational Trust, Sundararaja Nagar, Pondicherry, 605004, India; Biological Science College of Science, King Faisal University, Al Ahsa, 31982, Saudi Arabia
| | - Hany Ezzat Khalil
- Department of Pharmaceutical Sciences, College of Clinical Pharmacy, King Faisal University, Al-Ahsa, 31982, Saudi Arabia; Department of Pharmacognosy, Faculty of Pharmacy, Minia University, Minia, 61519, Egypt
| | - Vaishnavi Gunasekaran
- Department of Genetic Engineering, SRM Institute of Science and Technology, Kattankulathur, Tamil Nadu, 603203, India
| | - Sundaram Vickram
- Department of Biotechnology, Saveetha School of Engineering, Saveetha Institute of Medical and Technical Sciences, Chennai, 602105, India
| | - Venugopal Senthil Kumar
- Pondicherry Centre for Biological Science and Educational Trust, Sundararaja Nagar, Pondicherry, 605004, India; Tamil Nadu State Council for Science and Technology, DOTE Campus, Chennai, 600025, Tamil Nadu, India
| | - Senthilkumar Palanisamy
- Department of Genetic Engineering, SRM Institute of Science and Technology, Kattankulathur, Tamil Nadu, 603203, India.
| | - Krishnaraj Thirugnanasambantham
- Pondicherry Centre for Biological Science and Educational Trust, Sundararaja Nagar, Pondicherry, 605004, India; Department of Biotechnology, Saveetha School of Engineering, Saveetha Institute of Medical and Technical Sciences, Chennai, 602105, India.
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13
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Rossato Viana A, Rapachi Fortes C, Rodrigues P, Ribeiro S, Maria Heinzmann B, Alves da Cunha M, Cristina Zeppenfeld C, da Silva Fernandes L, Wagner R, Baldisserotto B, Figueiredo HX, Gonçalves NN, de Moraes Chitolina AB, Justen CE, Dellaméa Baldissera M. Impact of dietary supplementation with Cinnamomum cassia essential oil on silver catfish ( Rhamdia quelen): Toxicological effects and muscle antioxidant and fatty acid profiles. JOURNAL OF TOXICOLOGY AND ENVIRONMENTAL HEALTH. PART A 2023; 86:313-325. [PMID: 37010980 DOI: 10.1080/15287394.2023.2198564] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
The aim of this study was to determine the biological effects of dietary supplementation with 0.05% and 0.1% cinnamon essential oil extracted from Cinnamomum cassia on silver catfish (Rhamdia quelen). The final body weight, weight gain, and specific growth rate were significantly higher in fish supplemented with 0.05% cinnamon essential oil than in the control(untreated) group. Muscle reactive oxygen species and lipid peroxidation levels were significantly lower in fish supplemented with 0.05% cinnamon essential oil but higher at the 0.1% concentration. Muscle antioxidant capacity against peroxyl radicals (ACAP) and superoxide dismutase activity were significantly higher in fish supplemented with 0.05% cinnamon essential oil, while ACAP levels were lower in fish supplemented with 0.1%. The total saturated fatty acid content was significantly higher in the muscle of supplemented fish than in controls, while the total monounsaturated fatty acid content was significantly higher only in fish fed 0.1% cinnamon essential oil. Finally, the total content of polyunsaturated fatty acids was significantly lower in fish fed 0.1% essential oil. Thus, data demonstrated that 0.05% C. cassia essential oil improves fish health by improving performance and muscle oxidant/antioxidant status. Higher doses of cinnamon essential oil produced oxidative stress in muscle, suggesting toxicity at the 0.1% level. Although this cinnamon essential oil diet exerted positive health effects, this diet impaired the muscle fatty acid profile, suggesting adverse impacts on human health.
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Affiliation(s)
| | | | - Patrícia Rodrigues
- Department of Industrial Pharmacy, Universidade Federal de Santa Maria (UFSM), Santa Maria, RS, Brazil
| | - Stephanie Ribeiro
- Department of Food Science and Technology, Universidade Federal de Santa Maria (UFSM), Santa Maria, RS, Brazil
| | - Berta Maria Heinzmann
- Department of Industrial Pharmacy, Universidade Federal de Santa Maria (UFSM), Santa Maria, RS, Brazil
| | - Mauro Alves da Cunha
- Department of Physiology and Pharmacology, Universidade Federal de Santa Maria (UFSM), Santa Maria, RS, Brazil
| | - Carla Cristina Zeppenfeld
- Department of Physiology and Pharmacology, Universidade Federal de Santa Maria (UFSM), Santa Maria, RS, Brazil
| | | | - Roger Wagner
- Department of Food Science and Technology, Universidade Federal de Santa Maria (UFSM), Santa Maria, RS, Brazil
| | - Bernardo Baldisserotto
- Department of Physiology and Pharmacology, Universidade Federal de Santa Maria (UFSM), Santa Maria, RS, Brazil
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14
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Kifayat S, Yele V, Ashames A, Sigalapalli DK, Bhandare RR, Shaik AB, Nasipireddy V, Sanapalli BKR. Filamentous temperature sensitive mutant Z: a putative target to combat antibacterial resistance. RSC Adv 2023; 13:11368-11384. [PMID: 37057268 PMCID: PMC10089256 DOI: 10.1039/d3ra00013c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2023] [Accepted: 03/28/2023] [Indexed: 04/15/2023] Open
Abstract
In the pre-antibiotic era, common bacterial infections accounted for high mortality and morbidity. Moreover, the discovery of penicillin in 1928 marked the beginning of an antibiotic revolution, and this antibiotic era witnessed the discovery of many novel antibiotics, a golden era. However, the misuse or overuse of these antibiotics, natural resistance that existed even before the antibiotics were discovered, genetic variations in bacteria, natural selection, and acquisition of resistance from one species to another consistently increased the resistance to the existing antibacterial targets. Antibacterial resistance (ABR) is now becoming an ever-increasing concern jeopardizing global health. Henceforth, there is an urgent unmet need to discover novel compounds to combat ABR, which act through untapped pathways/mechanisms. Filamentous Temperature Sensitive mutant Z (FtsZ) is one such unique target, a tubulin homolog involved in developing a cytoskeletal framework for the cytokinetic ring. Additionally, its pivotal role in bacterial cell division and the lack of homologous structural protein in mammals makes it a potential antibacterial target for developing novel molecules. Approximately 2176 X-crystal structures of FtsZ were available, which initiated the research efforts to develop novel antibacterial agents. The literature has reported several natural, semisynthetic, peptides, and synthetic molecules as FtsZ inhibitors. This review provides valuable insights into the basic crystal structure of FtsZ, its inhibitors, and their inhibitory activities. This review also describes the available in vitro detection and quantification methods of FtsZ-drug complexes and the various approaches for determining drugs targeting FtsZ polymerization.
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Affiliation(s)
- Sumaiya Kifayat
- Department of Pharmacology, NIMS Institute of Pharmacy, NIMS University Rajasthan Jaipur 303121 India +91-9291661992
| | - Vidyasrilekha Yele
- Department of Pharmaceutical Chemistry, NIMS Institute of Pharmacy, NIMS University Rajasthan Jaipur 303121 India
| | - Akram Ashames
- College of Pharmacy & Health Sciences, Ajman University PO Box 340 Ajman United Arab Emirates
- Center of Medical and Bio-allied Health Sciences Research, Ajman University PO Box 340 Ajman United Arab Emirates +97167056240
| | - Dilep Kumar Sigalapalli
- Department of Pharmaceutical Chemistry, Vignan Pharmacy College, Jawaharlal Nehru Technological University Vadlamudi 522213 Andhra Pradesh India
| | - Richie R Bhandare
- College of Pharmacy & Health Sciences, Ajman University PO Box 340 Ajman United Arab Emirates
- Center of Medical and Bio-allied Health Sciences Research, Ajman University PO Box 340 Ajman United Arab Emirates +97167056240
| | - Afzal B Shaik
- St. Mary's College of Pharmacy, St. Mary's Group of Institutions Guntur, Affiliated to Jawaharlal Nehru Technological University Kakinada Chebrolu Guntur 522212 Andhra Pradesh India
| | | | - Bharat Kumar Reddy Sanapalli
- Department of Pharmacology, NIMS Institute of Pharmacy, NIMS University Rajasthan Jaipur 303121 India +91-9291661992
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15
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Shanbhag C, Saraogi I. Bacterial GTPases as druggable targets to tackle antimicrobial resistance. Bioorg Med Chem Lett 2023; 87:129276. [PMID: 37030567 DOI: 10.1016/j.bmcl.2023.129276] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2022] [Revised: 04/03/2023] [Accepted: 04/04/2023] [Indexed: 04/08/2023]
Abstract
Small molecules as antibacterial agents have contributed immensely to the growth of modern medicine over the last several decades. However, the emergence of drug resistance among bacterial pathogens has undermined the effectiveness of the existing antibiotics. Thus, there is an exigency to address the antibiotic crisis by developing new antibacterial agents and identifying novel drug targets in bacteria. In this review, we summarize the importance of guanosine triphosphate hydrolyzing proteins (GTPases) as key agents for bacterial survival. We also discuss representative examples of small molecules that target bacterial GTPases as novel antibacterial agents, and highlight areas that are ripe for exploration. Given their vital roles in cell viability, virulence, and antibiotic resistance, bacterial GTPases are highly attractive antibacterial targets that will likely play a vital role in the fight against antimicrobial resistance.
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16
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Chijcheapaza-Flores H, Tabary N, Chai F, Maton M, Staelens JN, Cazaux F, Neut C, Martel B, Blanchemain N, Garcia-Fernandez MJ. Injectable Chitosan-Based Hydrogels for Trans-Cinnamaldehyde Delivery in the Treatment of Diabetic Foot Ulcer Infections. Gels 2023; 9:gels9030262. [PMID: 36975711 PMCID: PMC10048173 DOI: 10.3390/gels9030262] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2023] [Revised: 03/14/2023] [Accepted: 03/16/2023] [Indexed: 03/29/2023] Open
Abstract
Diabetic foot ulcers (DFU) are among the most common complications in diabetic patients and affect 6.8% of people worldwide. Challenges in the management of this disease are decreased blood diffusion, sclerotic tissues, infection, and antibiotic resistance. Hydrogels are now being used as a new treatment option since they can be used for drug delivery and to improve wound healing. This project aims to combine the properties of hydrogels based on chitosan (CHT) and the polymer of β cyclodextrin (PCD) for local delivery of cinnamaldehyde (CN) in diabetic foot ulcers. This work consisted of the development and characterisation of the hydrogel, the evaluation of the CN release kinetics and cell viability (on a MC3T3 pre-osteoblast cell line), and the evaluation of the antimicrobial and antibiofilm activity (S. aureus and P. aeruginosa). The results demonstrated the successful development of a cytocompatible (ISO 10993-5) injectable hydrogel with antibacterial (99.99% bacterial reduction) and antibiofilm activity. Furthermore, a partial active molecule release and an increase in hydrogel elasticity were observed in the presence of CN. This leads us to hypothesise that a reaction between CHT and CN (a Schiff base) can occur and that CN could act as a physical crosslinker, thus improving the viscoelastic properties of the hydrogel and limiting CN release.
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Affiliation(s)
- Henry Chijcheapaza-Flores
- Univ. Lille, INSERM, CHU Lille, U1008-Advanced Drug Delivery Systems and Biomaterials, F-59000 Lille, France
| | - Nicolas Tabary
- Univ. Lille, CNRS, INRAE, Centrale Lille, UMR 8207-UMET-Unité Matériaux et Transformations, F-59000 Lille, France
| | - Feng Chai
- Univ. Lille, INSERM, CHU Lille, U1008-Advanced Drug Delivery Systems and Biomaterials, F-59000 Lille, France
| | - Mickaël Maton
- Univ. Lille, INSERM, CHU Lille, U1008-Advanced Drug Delivery Systems and Biomaterials, F-59000 Lille, France
| | - Jean-Noel Staelens
- Univ. Lille, CNRS, INRAE, Centrale Lille, UMR 8207-UMET-Unité Matériaux et Transformations, F-59000 Lille, France
| | - Frédéric Cazaux
- Univ. Lille, CNRS, INRAE, Centrale Lille, UMR 8207-UMET-Unité Matériaux et Transformations, F-59000 Lille, France
| | - Christel Neut
- Univ. Lille, INSERM, CHU Lille, U1286-INFINITE, F-59000 Lille, France
| | - Bernard Martel
- Univ. Lille, CNRS, INRAE, Centrale Lille, UMR 8207-UMET-Unité Matériaux et Transformations, F-59000 Lille, France
| | - Nicolas Blanchemain
- Univ. Lille, INSERM, CHU Lille, U1008-Advanced Drug Delivery Systems and Biomaterials, F-59000 Lille, France
| | - Maria José Garcia-Fernandez
- Univ. Lille, INSERM, CHU Lille, U1008-Advanced Drug Delivery Systems and Biomaterials, F-59000 Lille, France
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17
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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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18
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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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19
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Capper-Parkin KL, Nichol T, Smith TJ, Lacey MM, Forbes S. Antimicrobial and cytotoxic synergism of biocides and quorum-sensing inhibitors against uropathogenic Escherichiacoli. J Hosp Infect 2023; 134:138-146. [PMID: 36801429 DOI: 10.1016/j.jhin.2023.02.004] [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: 11/29/2022] [Revised: 02/10/2023] [Accepted: 02/11/2023] [Indexed: 02/19/2023]
Abstract
BACKGROUND Uropathogenic Escherichia coli (UPEC) are a primary cause of catheter-associated urinary tract infections (CAUTIs), often forming mature recalcitrant biofilms on the catheter surface. Anti-infective catheter coatings containing single biocides have been developed but display limited antimicrobial activity due to the selection of biocide-resistant bacterial populations. Furthermore, biocides often display cytotoxicity at concentrations required to eradicate biofilms, limiting their antiseptic potential. Quorum-sensing inhibitors (QSIs) provide a novel anti-infective approach to disrupt biofilm formation on the catheter surface and help prevent CAUTIs. AIM To evaluate the combinatorial impact of biocides and QSIs at bacteriostatic, bactericidal and biofilm eradication concentrations in parallel to assessing cytotoxicity in a bladder smooth muscle (BSM) cell line. METHODS Checkerboard assays were performed to determine fractional inhibitory, bactericidal, and biofilm eradication concentrations of test combinations in UPEC and combined cytotoxic effects in BSM cells. FINDINGS Synergistic antimicrobial activity was observed between polyhexamethylene biguanide, benzalkonium chloride or silver nitrate in combination with either cinnamaldehyde or furanone-C30 against UPEC biofilms. However, furanone-C30 was cytotoxic at concentrations below those required even for bacteriostatic activity. A dose-dependent cytotoxicity profile was observed for cinnamaldehyde when in combination with BAC, PHMB or silver nitrate. Both PHMB and silver nitrate displayed combined bacteriostatic and bactericidal activity below the half-maximum inhibitory concentration (IC50). Triclosan in combination with both QSIs displayed antagonistic activity in both UPEC and BSM cells. CONCLUSION PHMB and silver in combination with cinnamaldehyde display synergistic antimicrobial activity in UPEC at non-cytotoxic concentrations, suggesting potential as anti-infective catheter-coating agents.
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Affiliation(s)
- K L Capper-Parkin
- Biomolecular Sciences Research Centre, Sheffield Hallam University, Sheffield, UK
| | - T Nichol
- Biomolecular Sciences Research Centre, Sheffield Hallam University, Sheffield, UK
| | - T J Smith
- Biomolecular Sciences Research Centre, Sheffield Hallam University, Sheffield, UK
| | - M M Lacey
- Biomolecular Sciences Research Centre, Sheffield Hallam University, Sheffield, UK
| | - S Forbes
- Biomolecular Sciences Research Centre, Sheffield Hallam University, Sheffield, UK.
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20
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Yammine J, Chihib NE, Gharsallaoui A, Dumas E, Ismail A, Karam L. Essential oils and their active components applied as: free, encapsulated and in hurdle technology to fight microbial contaminations. A review. Heliyon 2022; 8:e12472. [PMID: 36590515 PMCID: PMC9798198 DOI: 10.1016/j.heliyon.2022.e12472] [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: 04/04/2022] [Revised: 04/24/2022] [Accepted: 12/11/2022] [Indexed: 12/24/2022] Open
Abstract
Microbial contaminations are responsible for many chronic, healthcare, persistent microbial infections and illnesses in the food sector, therefore their control is an important public health challenge. Over the past few years, essential oils (EOs) have emerged as interesting alternatives to synthetic antimicrobials as they are biodegradable, extracted from natural sources and potent antimicrobials. Through their multiple mechanisms of actions and target sites, no microbial resistance has been developed against them till present. Although extensive documentation has been reported on the antimicrobial activity of EOs, comparisons between the use of whole EOs or their active components alone for an antimicrobial treatment are less abundant. It is also essential to have a good knowledge about EOs to be used as alternatives to the conventional antimicrobial products such as chemical disinfectants. Moreover, it is important to focus not only on planktonic vegetative microorganisms, but to study also the effect on more resistant forms like spores and biofilms. The present article reviews the current knowledge on the mechanisms of antimicrobial activities of EOs and their active components on microorganisms in different forms. Additionally, in this review, the ultimate advantages of encapsulating EOs or combining them with other hurdles for enhanced antimicrobial treatments are discussed.
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Affiliation(s)
- Jina Yammine
- Univ Lille, CNRS, INRAE, Centrale Lille, UMR 8207 – UMET – Unité Matériaux et Transformations, Lille, France,Plateforme de Recherches et d’Analyses en Sciences de l’Environnement (PRASE), Ecole Doctorale des Sciences et Technologies, Université Libanaise, Hadath, Lebanon
| | - Nour-Eddine Chihib
- Univ Lille, CNRS, INRAE, Centrale Lille, UMR 8207 – UMET – Unité Matériaux et Transformations, Lille, France
| | - Adem Gharsallaoui
- Univ Lyon, Université Claude Bernard Lyon 1, CNRS, LAGEPP UMR 5007, Villeurbanne, France
| | - Emilie Dumas
- Univ Lyon, Université Claude Bernard Lyon 1, CNRS, LAGEPP UMR 5007, Villeurbanne, France
| | - Ali Ismail
- Plateforme de Recherches et d’Analyses en Sciences de l’Environnement (PRASE), Ecole Doctorale des Sciences et Technologies, Université Libanaise, Hadath, Lebanon
| | - Layal Karam
- Human Nutrition Department, College of Health Sciences, QU Health, Qatar University, Doha, Qatar,Corresponding author.
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21
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Zaineb T, Uzair B, Rizg WY, Alharbi WS, Alkhalidi HM, Hosny KM, Khan BA, Bano A, Alissa M, Jamil N. Synthesis and Characterization of Calcium Alginate-Based Microspheres Entrapped with TiO 2 Nanoparticles and Cinnamon Essential Oil Targeting Clinical Staphylococcus aureus. Pharmaceutics 2022; 14:pharmaceutics14122764. [PMID: 36559258 PMCID: PMC9782131 DOI: 10.3390/pharmaceutics14122764] [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: 10/15/2022] [Revised: 12/04/2022] [Accepted: 12/06/2022] [Indexed: 12/14/2022] Open
Abstract
It is important to create new generations of materials that can destroy multidrug-resistant bacterial strains, which are a serious public health concern. This study focused on the biosynthesis of an essential oil entrapped in titanium dioxide (TiO2) calcium alginate-based microspheres. In this research, calcium alginate-based microspheres with entrapped TiO2 nanoparticles and cinnamon essential oil (CI-TiO2-MSs) were synthesized, using an aqueous extract of Nigella sativa seeds for TiO2 nanoparticle preparation, and the ionotropic gelation method for microsphere preparation. The microspheres obtained were spherical, uniformly sized, microporous, and rough surfaced, and they were fully loaded with cinnamon essential oil and TiO2 nanoparticles. The synthesized microspheres were analyzed for antibacterial activity against the clinical multidrug-resistant strain of Staphylococcus aureus. Disc diffusion and flow cytometry analysis revealed strong antibacterial activity by CI-TiO2-MSs. The synthesized CI-TiO2-MSs were characterized by the SEM/EDX, X-ray diffraction, and FTIR techniques. Results showed that the TiO2 nanoparticles were spherical and 99 to 150 nm in size, whereas the CI-TiO2-MSs were spherical and rough surfaced. Apoptosis analysis and SEM micrography revealed that the CI-TiO2-MSs had strong bactericidal activity against S. aureus. The in vitro antibacterial experiments proved that the encapsulated CI-TiO2-MSs had strong potential for use as a prolonged controlled release system against multidrug-resistant clinical S. aureus.
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Affiliation(s)
- Tayyaba Zaineb
- Department of Biological Sciences, International Islamic University, Islamabad 44000, Pakistan
| | - Bushra Uzair
- Department of Biological Sciences, International Islamic University, Islamabad 44000, Pakistan
- Correspondence: (B.U.); (K.M.H.)
| | - Waleed Y. Rizg
- Department of Pharmaceutics, Faculty of Pharmacy, King Abdulaziz University, Jeddah 21589, Saudi Arabia
- Center of Innovation in Personalized Medicine (CIPM), 3D Bioprinting Unit, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Waleed S. Alharbi
- Department of Pharmaceutics, Faculty of Pharmacy, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Hala M. Alkhalidi
- Department of Clinical Pharmacy, Faculty of Pharmacy, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Khaled M. Hosny
- Department of Pharmaceutics, Faculty of Pharmacy, King Abdulaziz University, Jeddah 21589, Saudi Arabia
- Correspondence: (B.U.); (K.M.H.)
| | - Barkat Ali Khan
- Drug Delivery and Cosmetics Lab (DDCL), GCPS, Faculty of Pharmacy, Gomal University, Dera Ismail Khan 29050, Pakistan
| | - Asma Bano
- Department of Microbiology, University of Haripur, Haripur 22620, Pakistan
| | - Mohammed Alissa
- Department of Medical Laboratory Sciences, College of Applied Medical Sciences, Prince Sattam Bin Abdulaziz University, Al-Kharj 11942, Saudi Arabia
| | - Nazia Jamil
- Department of Microbiology & Molecular Genetics, Punjab University, Lahore 54000, Pakistan
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22
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Nano-technology platforms to increase the antibacterial drug suitability of essential oils: A drug prospective assessment. OPENNANO 2022. [DOI: 10.1016/j.onano.2022.100115] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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23
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Chai WC, Whittall JJ, Polyak SW, Foo K, Li X, Dutschke CJ, Ogunniyi AD, Ma S, Sykes MJ, Semple SJ, Venter H. Cinnamaldehyde derivatives act as antimicrobial agents against Acinetobacter baumannii through the inhibition of cell division. Front Microbiol 2022; 13:967949. [PMID: 36106080 PMCID: PMC9465178 DOI: 10.3389/fmicb.2022.967949] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2022] [Accepted: 08/05/2022] [Indexed: 11/13/2022] Open
Abstract
Acinetobacter baumannii is a pathogen with high intrinsic antimicrobial resistance while multidrug resistant (MDR) and extensively drug resistant (XDR) strains of this pathogen are emerging. Treatment options for infections by these strains are very limited, hence new therapies are urgently needed. The bacterial cell division protein, FtsZ, is a promising drug target for the development of novel antimicrobial agents. We have previously reported limited activity of cinnamaldehyde analogs against Escherichia coli. In this study, we have determined the antimicrobial activity of six cinnamaldehyde analogs for antimicrobial activity against A. baumannii. Microscopic analysis was performed to determine if the compounds inhibit cell division. The on-target effect of the compounds was assessed by analyzing their effect on polymerization and on the GTPase activity of purified FtsZ from A. baumannii. In silico docking was used to assess the binding of cinnamaldehyde analogs. Finally, in vivo and in vitro safety assays were performed. All six compounds displayed antibacterial activity against the critical priority pathogen A. baumannii, with 4-bromophenyl-substituted 4 displaying the most potent antimicrobial activity (MIC 32 μg/mL). Bioactivity was significantly increased in the presence of an efflux pump inhibitor for A. baumannii ATCC 19606 (up to 32-fold) and significantly, for extensively drug resistant UW 5075 (greater than 4-fold), suggesting that efflux contributes to the intrinsic resistance of A. baumannii against these agents. The compounds inhibited cell division in A. baumannii as observed by the elongated phenotype and targeted the FtsZ protein as seen from the inhibition of polymerization and GTPase activity. In silico docking predicted that the compounds bind in the interdomain cleft adjacent to the H7 core helix. Di-chlorinated 6 was devoid of hemolytic activity and cytotoxicity against mammalian cells in vitro, as well as adverse activity in a Caenorhabditis elegans nematode model in vivo. Together, these findings present halogenated analogs 4 and 6 as promising candidates for further development as antimicrobial agents aimed at combating A. baumannii. This is also the first report of FtsZ-targeting compounds with activity against an XDR A. baumannii strain.
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Affiliation(s)
- Wern Chern Chai
- Health and Biomedical Innovation, Clinical and Health Sciences, University of South Australia, Adelaide, SA, Australia
| | - Jonathan J. Whittall
- Health and Biomedical Innovation, Clinical and Health Sciences, University of South Australia, Adelaide, SA, Australia
| | - Steven W. Polyak
- Health and Biomedical Innovation, Clinical and Health Sciences, University of South Australia, Adelaide, SA, Australia
| | - Klyie Foo
- Health and Biomedical Innovation, Clinical and Health Sciences, University of South Australia, Adelaide, SA, Australia
| | - Xin Li
- Department of Medicinal Chemistry, Key Laboratory of Chemical Biology (Ministry of Education), School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Cameron J. Dutschke
- Health and Biomedical Innovation, Clinical and Health Sciences, University of South Australia, Adelaide, SA, Australia
| | - Abiodun D. Ogunniyi
- Australian Centre for Antimicrobial Resistance Ecology, School of Animal and Veterinary Sciences, University of Adelaide, Adelaide, SA, Australia
| | - 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, China
| | - Matthew J. Sykes
- Health and Biomedical Innovation, Clinical and Health Sciences, University of South Australia, Adelaide, SA, Australia
| | - Susan J. Semple
- Health and Biomedical Innovation, Clinical and Health Sciences, University of South Australia, Adelaide, SA, Australia
- Quality Use of Medicines and Pharmacy Research Centre, Clinical and Health Sciences, University of South Australia, Adelaide, SA, Australia
| | - Henrietta Venter
- Health and Biomedical Innovation, Clinical and Health Sciences, University of South Australia, Adelaide, SA, Australia
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24
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Khan F, Jeong GJ, Tabassum N, Mishra A, Kim YM. Filamentous morphology of bacterial pathogens: regulatory factors and control strategies. Appl Microbiol Biotechnol 2022; 106:5835-5862. [PMID: 35989330 DOI: 10.1007/s00253-022-12128-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2022] [Revised: 08/03/2022] [Accepted: 08/06/2022] [Indexed: 11/24/2022]
Abstract
Several studies have demonstrated that when exposed to physical, chemical, and biological stresses in the environment, many bacteria (Gram-positive and Gram-negative) change their morphology from a normal cell to a filamentous shape. The formation of filamentous morphology is one of the survival strategies against environmental stress and protection against phagocytosis or protist predators. Numerous pathogenic bacteria have shown filamentous morphologies when examined in vivo or in vitro. During infection, certain pathogenic bacteria adopt a filamentous shape inside the cell to avoid phagocytosis by immune cells. Filamentous morphology has also been seen in biofilms formed on biotic or abiotic surfaces by certain bacteria. As a result, in addition to protecting against phagocytosis by immune cells or predators, the filamentous shape aids in biofilm adhesion or colonization to biotic or abiotic surfaces. Furthermore, these filamentous morphologies of bacterial pathogens lead to antimicrobial drug resistance. Clinically, filamentous morphology has become one of the most serious challenges in treating bacterial infection. The current review went into great detail about the various factors involved in the change of filamentous morphology and the underlying mechanisms. In addition, the review discussed a control strategy for suppressing filamentous morphology in order to combat bacterial infections. Understanding the mechanism underlying the filamentous morphology induced by various environmental conditions will aid in drug development and lessen the virulence of bacterial pathogens. KEY POINTS: • The bacterial filamentation morphology is one of the survival mechanisms against several environmental stress conditions and protection from phagocytosis by host cells and protist predators. • The filamentous morphologies in bacterial pathogens contribute to enhanced biofilm formation, which develops resistance properties against antimicrobial drugs. • Filamentous morphology has become one of the major hurdles in treating bacterial infection, hence controlling strategies employed for inhibiting the filamentation morphology from combating bacterial infections.
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Affiliation(s)
- Fazlurrahman Khan
- Marine Integrated Biomedical Technology Center, The National Key Research Institutes in Universities, Pukyong National University, Busan, 48513, Republic of Korea. .,Research Center for Marine Integrated Bionics Technology, Pukyong National University, Busan, 48513, Republic of Korea.
| | - Geum-Jae Jeong
- Department of Food Science and Technology, Pukyong National University, Busan, 48513, Republic of Korea
| | - Nazia Tabassum
- Industry 4.0 Convergence Bionics Engineering, Pukyong National University, Busan, 48513, Republic of Korea
| | - Akanksha Mishra
- Department of Biotechnology, Division of Research and Development, Lovely Professional University, Phagwara, Punjab, 144001, India
| | - Young-Mog Kim
- Marine Integrated Biomedical Technology Center, The National Key Research Institutes in Universities, Pukyong National University, Busan, 48513, Republic of Korea. .,Research Center for Marine Integrated Bionics Technology, Pukyong National University, Busan, 48513, Republic of Korea. .,Department of Food Science and Technology, Pukyong National University, Busan, 48513, Republic of Korea.
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25
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Investigating the Antituberculosis Activity of Selected Commercial Essential Oils and Identification of Active Constituents Using a Biochemometrics Approach and In Silico Modeling. Antibiotics (Basel) 2022; 11:antibiotics11070948. [PMID: 35884202 PMCID: PMC9311982 DOI: 10.3390/antibiotics11070948] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2022] [Revised: 07/08/2022] [Accepted: 07/10/2022] [Indexed: 02/04/2023] Open
Abstract
Tuberculosis (TB) is a disease caused by Mycobacterium tuberculosis which has become prevalent due to the emergence of resistant M. tuberculosis strains. The use of essential oils (EOs) as potential anti-infective agents to treat microbial infections, including TB, offers promise due to their long historical use and low adverse effects. The current study aimed to investigate the in vitro anti-TB activity of 85 commercial EOs, and identify compounds responsible for the activity, using a biochemometrics approach. A microdilution assay was used to determine the antimycobacterial activity of the EOs towards some non-pathogenic Mycobacterium strains. In parallel, an Alamar blue assay was used to investigate antimycobacterial activity towards the pathogenic M. tuberculosis strain. Chemical profiling of the EOs was performed using gas chromatography-mass spectrometry (GC-MS) analysis. Biochemometrics filtered out putative biomarkers using orthogonal projections to latent structures discriminant analysis (OPLS-DA). In silico modeling was performed to identify potential therapeutic targets of the active biomarkers. Broad-spectrum antimycobacterial activity was observed for Cinnamomum zeylanicum (bark) (MICs = 1.00, 0.50, 0.25 and 0.008 mg/mL) and Levisticum officinale (MICs = 0.50, 0.5, 0.5 and 0.004 mg/mL) towards M. smegmatis, M. fortuitum, M. gordonae and M. tuberculosis, respectively. Biochemometrics predicted cinnamaldehyde, thymol and eugenol as putative biomarkers. Molecular docking demonstrated that cinnamaldehyde could serve as a scaffold for developing a novel class of antimicrobial compounds by targeting FtsZ and PknB from M. tuberculosis.
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26
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Citrus Essential Oils: a Treasure Trove of Antibiofilm Agent. Appl Biochem Biotechnol 2022; 194:4625-4638. [PMID: 35779176 DOI: 10.1007/s12010-022-04033-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/26/2022] [Indexed: 11/02/2022]
Abstract
Biofilms are groups of adherent cell communities that cohere to the biotic and abiotic surfaces with the help of extracellular polymeric substances (EPS). EPS allow bacteria to form a biofilm that facilitates their binding to biotic and abiotic surfaces and provides resistance to the host immune responses and to antibiotics. There are efforts that have led to the development of natural compounds that can overcome this biofilm-mediated resistance. Essential oils (EOs) are a unique mixture of compounds that plays a key role in preventing the development of biofilm. The present overview focusses on the role of various types of citrus essential oils in acting against the biofilm, and the antibiofilm properties of natural compounds that may show an avenue to treat the multidrug-resistant bacteria.
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27
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Deng J, Zhang T, Li B, Xu M, Wang Y. Design, synthesis and biological evaluation of biphenyl-benzamides as potent FtsZ inhibitors. Eur J Med Chem 2022; 239:114553. [PMID: 35763867 DOI: 10.1016/j.ejmech.2022.114553] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2021] [Revised: 06/14/2022] [Accepted: 06/16/2022] [Indexed: 11/04/2022]
Abstract
The rapid emergence of antibiotic resistance has become a prevalent threat to public health, thereby development of new antibacterial agents having novel mechanisms of action is in an urgent need. Targeting at the cytoskeletal cell division protein filamenting temperature-sensitive mutant Z (FtsZ) has been validated as an effective and promising approach for antibacterial drug discovery. In this study, a series of novel biphenyl-benzamides as FtsZ inhibitors has been rationally designed, synthesized and evaluated for their antibacterial activities against various Gram-positive bacteria strains. In particular, the most promising compound 30 exhibited excellent antibacterial activities, especially against four different Bacillus subtilis strains, with an MIC range of 0.008 μg/mL to 0.063 μg/mL. Moreover, compound 30 also showed good pharmaceutical properties with low cytotoxicity (CC50 > 20 μg/mL), excellent human metabolic stability (T1/2 = 111.98 min), moderate pharmacokinetics (T1/2 = 2.26 h, F = 61.2%) and in vivo efficacy, which can be identified as a promising FtsZ inhibitor worthy of further profiling.
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Affiliation(s)
- Jingjing Deng
- Department of Molecular Genetics, University of Groningen, Groningen, Netherlands
| | - Tao Zhang
- Bioland Laboratory (Guangzhou Regenerative Medicine and Health - Guangdong Laboratory),Guangzhou, 510530, PR China
| | - Baiqing Li
- Bioland Laboratory (Guangzhou Regenerative Medicine and Health - Guangdong Laboratory),Guangzhou, 510530, PR China
| | - Mingyuan Xu
- Bioland Laboratory (Guangzhou Regenerative Medicine and Health - Guangdong Laboratory),Guangzhou, 510530, PR China
| | - Yuanze Wang
- Bioland Laboratory (Guangzhou Regenerative Medicine and Health - Guangdong Laboratory),Guangzhou, 510530, PR China.
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28
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Sionov RV, Steinberg D. Targeting the Holy Triangle of Quorum Sensing, Biofilm Formation, and Antibiotic Resistance in Pathogenic Bacteria. Microorganisms 2022; 10:1239. [PMID: 35744757 PMCID: PMC9228545 DOI: 10.3390/microorganisms10061239] [Citation(s) in RCA: 53] [Impact Index Per Article: 26.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2022] [Revised: 06/12/2022] [Accepted: 06/14/2022] [Indexed: 12/12/2022] Open
Abstract
Chronic and recurrent bacterial infections are frequently associated with the formation of biofilms on biotic or abiotic materials that are composed of mono- or multi-species cultures of bacteria/fungi embedded in an extracellular matrix produced by the microorganisms. Biofilm formation is, among others, regulated by quorum sensing (QS) which is an interbacterial communication system usually composed of two-component systems (TCSs) of secreted autoinducer compounds that activate signal transduction pathways through interaction with their respective receptors. Embedded in the biofilms, the bacteria are protected from environmental stress stimuli, and they often show reduced responses to antibiotics, making it difficult to eradicate the bacterial infection. Besides reduced penetration of antibiotics through the intricate structure of the biofilms, the sessile biofilm-embedded bacteria show reduced metabolic activity making them intrinsically less sensitive to antibiotics. Moreover, they frequently express elevated levels of efflux pumps that extrude antibiotics, thereby reducing their intracellular levels. Some efflux pumps are involved in the secretion of QS compounds and biofilm-related materials, besides being important for removing toxic substances from the bacteria. Some efflux pump inhibitors (EPIs) have been shown to both prevent biofilm formation and sensitize the bacteria to antibiotics, suggesting a relationship between these processes. Additionally, QS inhibitors or quenchers may affect antibiotic susceptibility. Thus, targeting elements that regulate QS and biofilm formation might be a promising approach to combat antibiotic-resistant biofilm-related bacterial infections.
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Affiliation(s)
- Ronit Vogt Sionov
- The Biofilm Research Laboratory, The Institute of Biomedical and Oral Research, The Faculty of Dental Medicine, Hadassah Medical School, The Hebrew University, Jerusalem 9112102, Israel;
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29
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Ali IAA, Neelakantan P. Antibiofilm activity of phytochemicals against Enterococcus faecalis: A literature review. Phytother Res 2022; 36:2824-2838. [PMID: 35522168 DOI: 10.1002/ptr.7488] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2021] [Revised: 02/17/2022] [Accepted: 04/19/2022] [Indexed: 12/11/2022]
Abstract
Enterococcus faecalis is a leading causative pathogen of recalcitrant infections affecting heart valves, urinary tract, surgical wounds and dental root canals. Its robust biofilm formation, production of virulence factors and antibiotic resistance contribute significantly to its pathogenicity in persistent infections. The decreased effectiveness of most of antibiotics in preventing and/or eradicating E. faecalis biofilms mandates the discovery of alternative novel antibiofilm agents. Phytochemicals are potential sources of antibiofilm agents due to their antivirulence activity, diversity of chemical structure and multiple mechanisms of action. In this review, we describe the phenotypic and genetic attributes that contribute to antimicrobial tolerance of E. faecalis biofilms. We illuminate the benefits of implementing the phytochemicals to tackle microbial pathogens. Finally, we report the antibiofilm activity of phytochemicals against E. faecalis, and explain their mechanisms of action. These compounds belong to different chemical classes such as terpenes, phenylpropenes, flavonoids, curcuminoids and alkaloids. They demonstrate the ability to inhibit the formation of and/or eradicate E. faecalis biofilms. However, the exact mechanisms of action of most of these compounds are not fully understood. Therefore, the future studies should elucidate the underlying mechanisms in detail.
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Affiliation(s)
- Islam A A Ali
- Faculty of Dentistry, The University of Hong Kong, Hong Kong SAR
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30
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Gurnani M, Chauhan A, Ranjan A, Tuli HS, Alkhanani MF, Haque S, Dhama K, Lal R, Jindal T. Filamentous Thermosensitive Mutant Z: An Appealing Target for Emerging Pathogens and a Trek on Its Natural Inhibitors. BIOLOGY 2022; 11:624. [PMID: 35625352 PMCID: PMC9138142 DOI: 10.3390/biology11050624] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/04/2022] [Revised: 03/18/2022] [Accepted: 04/01/2022] [Indexed: 12/14/2022]
Abstract
Antibiotic resistance is a major emerging issue in the health care sector, as highlighted by the WHO. Filamentous Thermosensitive mutant Z (Fts-Z) is gaining significant attention in the scientific community as a potential anti-bacterial target for fighting antibiotic resistance among several pathogenic bacteria. The Fts-Z plays a key role in bacterial cell division by allowing Z ring formation. Several in vitro and in silico experiments have demonstrated that inhibition of Fts-Z can lead to filamentous growth of the cells, and finally, cell death occurs. Many natural compounds that have successfully inhibited Fts-Z are also studied. This review article intended to highlight the structural-functional aspect of Fts-Z that leads to Z-ring formation and its contribution to the biochemistry and physiology of cells. The current trend of natural inhibitors of Fts-Z protein is also covered.
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Affiliation(s)
- Manisha Gurnani
- Amity Institute of Environmental Science, Amity University, Noida 201301, India;
| | - Abhishek Chauhan
- Amity Institute of Environmental Toxicology, Safety and Management, Amity University, Noida 201303, India;
| | - Anuj Ranjan
- Academy of Biology and Biotechnology, Southern Federal University, 344006 Rostov-on-Don, Russia
| | - Hardeep Singh Tuli
- Department of Biotechnology, Maharishi Markandeshwar (Deemed to be University), Ambala 133207, India;
| | - Mustfa F. Alkhanani
- Emergency Service Department, College of Applied Sciences, AlMaarefa University, Riyadh 11597, Saudi Arabia;
| | - Shafiul Haque
- Research and Scientific Studies Unit, College of Nursing and Allied Health Sciences, Jazan University, Jazan 45142, Saudi Arabia;
- Faculty of Medicine, Görükle Campus, Bursa Uludağ University, Nilüfer, Bursa 16059, Turkey
| | - Kuldeep Dhama
- Division of Pathology, ICAR—Indian Veterinary Research Institute, Bareilly 243122, India;
| | - Rup Lal
- Department of Zoology, University of Delhi, Delhi 110021, India;
| | - Tanu Jindal
- Amity Institute of Environmental Toxicology, Safety and Management, Amity University, Noida 201303, India;
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31
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Zhong DX, She MT, Guo XC, Zheng BX, Huang XH, Zhang YH, Ser HL, Wong WL, Sun N, Lu YJ. Design and synthesis of quinolinium-based derivatives targeting FtsZ for antibacterial evaluation and mechanistic study. Eur J Med Chem 2022; 236:114360. [PMID: 35421657 DOI: 10.1016/j.ejmech.2022.114360] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2022] [Revised: 04/03/2022] [Accepted: 04/04/2022] [Indexed: 01/03/2023]
Abstract
The discovery of small molecular inhibitors targeting essential and conserved bacterial drug targets such as FtsZ protein is a promising approach to fight against multi-drug resistant bacteria. In the present study, two new series of FtsZ inhibitors based on a 1-methylquinolinium scaffold were synthesized. The inhibitors possess a variety of substituent groups including the cyclic or linear amine skeleton at the 2- and 4-position of the quinolinium ring for structure-activity relationship study. In general, the inhibitors bearing a cyclic amine substituent at the 4-position of the quinolinium ring showed better antibacterial activity (MIC down to 0.25 μg/mL) than that at the 2-position, especially against Gram-positive bacteria. Among the twenty FtsZ inhibitors examined in various assays, A3 was identified to exhibit excellent antibacterial activity against S. aureus (MIC = 0.5-1 μg/mL), S. epidermidis (MIC = 0.25 μg/mL) and E. faecium (MIC = 1-8 μg/mL). More importantly, A3 showed low hemolytic toxicity (IC5 = 64 μg/mL) and was found not readily to induce drug resistance. A3 at 2-8 μg/mL promoted the polymerization of FtsZ and interrupted the bacterial division. Furthermore, the ligand-FtsZ interaction study conducted with circular dichroism and molecular docking revealed that A3 induced secondary structure changes of FtsZ protein upon binding to the interdomain cleft of the protein. A3 is thus a potent inhibitor of FtsZ and shows potential to be used as a new antibacterial agent against drug-resistant bacteria.
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Affiliation(s)
- Dong-Xiao Zhong
- School of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, Guangzhou, 510006, PR China
| | - Meng-Ting She
- School of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, Guangzhou, 510006, PR China
| | - Xiao-Chun Guo
- School of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, Guangzhou, 510006, PR China
| | - Bo-Xin Zheng
- 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
| | - Hooi-Leng Ser
- School of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, Guangzhou, 510006, PR China
| | - Wing-Leung Wong
- The State Key Laboratory of Chemical Biology and Drug Discovery, Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, China.
| | - Ning Sun
- The State Key Laboratory of Chemical Biology and Drug Discovery, Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, China; Guangzhou First People's Hospital, School of Medicine, South China University of Technology, Guangzhou, 510180, PR China.
| | - Yu-Jing Lu
- School of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, Guangzhou, 510006, PR China; Engineering Research Academy of High Value Utilization of Green Plants, Meizhou, 514021, PR China; Golden Health (Guangdong) Biotechnology Co., Ltd, Foshan, 28225, PR China.
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32
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Exploring the Roles of Dietary Herbal Essential Oils in Aquaculture: A Review. Animals (Basel) 2022; 12:ani12070823. [PMID: 35405814 PMCID: PMC8996993 DOI: 10.3390/ani12070823] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2021] [Revised: 01/05/2022] [Accepted: 01/28/2022] [Indexed: 02/01/2023] Open
Abstract
The aquaculture sector is one of the main activities contributing to food security for humanity around the globe. However, aquatic animals are susceptible to several farming stressors involved in deteriorated growth performance, reduced productivity, and eventually high mortality rates. In some countries still, antibiotics and chemotherapies are comprehensively applied to control biotic stressors. Aside from the apparent benefits, the continuous usage of antibiotics develops bacterial resistance, deteriorates bacterial populations, and accumulates these compounds in the aquatic environment. Alternatively, environmentally friendly additives were used to avoid the direct and indirect impacts on the aquatic ecosystem and human health. In aquaculture, medicinal herbs and extracts are extensively used and approved for their growth-promoting, anti-inflammatory, and antioxidative properties. Herbal essential oils contain many bioactive components with powerful antibacterial, antioxidative, and immunostimulant potentials, suggesting their application for aquatic animals. Essential oils can be provided via diet and can benefit aquatic animals by improving their well-being and health status. The use of essential oils in aquafeed has been studied in a variety of aquatic animals to determine their beneficial roles and optimum doses. The outputs illustrated that herbal essential oils are exciting alternatives to antibiotics with prominent growth promotion, antioxidative, and immunostimulant roles. Herein, we reviewed the beneficial roles of essential oils in aquaculture. This review also aims to describe trends in herbal essential oils use, mainly in commercial fish species, and to analyze different factors that affect essential oils’ efficacy on the growth performance, antioxidative, and immune responses of finfish species.
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Van Liefferinge E, Forte C, Degroote J, Ovyn A, Van Noten N, Mangelinckx S, Michiels J. In vitro and in vivo antimicrobial activity of cinnamaldehyde and derivatives towards the intestinal bacteria of the weaned piglet. ITALIAN JOURNAL OF ANIMAL SCIENCE 2022. [DOI: 10.1080/1828051x.2022.2041113] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
| | - Claudio Forte
- Dipartimento di Scienze Veterinarie, University of Turin, Grugliasco, Italy
| | - Jeroen Degroote
- Vakgroep Dierwetenschappen en Aquatische Ecologie, Ghent University, Gent, Belgium
| | - Anneke Ovyn
- Vakgroep Dierwetenschappen en Aquatische Ecologie, Ghent University, Gent, Belgium
| | - Noémie Van Noten
- Vakgroep Dierwetenschappen en Aquatische Ecologie, Ghent University, Gent, Belgium
| | - Sven Mangelinckx
- Vakgroep Groene Chemie en Technologie, Ghent University, Gent, Belgium
| | - Joris Michiels
- Vakgroep Dierwetenschappen en Aquatische Ecologie, Ghent University, Gent, Belgium
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Al Tbakhi B, Nsairat H, Alshaer W, Al-Kadash A, Helal W, Alrawashdeh L, Day A, Assaf KI, Hassouneh R, Odeh F, Al Bawab A. Cinnamaldehyde-cucurbituril complex: investigation of loading efficiency and its role in enhancing cinnamaldehyde in vitro anti-tumor activity. RSC Adv 2022; 12:7540-7549. [PMID: 35424684 PMCID: PMC8982175 DOI: 10.1039/d2ra00044j] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2022] [Accepted: 03/01/2022] [Indexed: 11/21/2022] Open
Abstract
This study aimed to clarify the physico-chemical properties of cucurbit[7]uril (CB[7]) and cinnamaldehyde (Cinn) inclusion complexes (CB[7]-Cinn) and their resulting antitumor activity. CB[7]-Cinn inclusion complexes were prepared by a simple experimental approach and fully characterized for their stoichiometry, formation constant, particle size and morphology. Quantum chemical calculations were performed to elucidate the stable molecular structures of the inclusion complexes and their precursors and to investigate the probable stoichiometry and direction of interaction using three different DFT functionals at the 6-31G(d,p) basis set. The UV-vis spectrophotometric titrations as well as the Job plot, based on 1H NMR spectroscopy, suggested 1 : 1 and 1 : 2 stoichiometries of CB[7] : Cinn. The formation constants of the complexes were calculated using Benesi-Hildebrand equations and non-linear fittings. Moreover, the theoretical calculations confirmed the potential formation of 1 : 1 and 1 : 2 stoichiometries and clarify the orientation of binding from the Cinn phenyl moiety. The nanoparticles' TEM images showed a crystal-like spherical shape, smooth surface, with a small tendency to agglomerate. CB[7]-Cinn inclusion complexes were analyzed for their antitumor activity against MDA-MB-231 breast cancer and U-87 glioblastoma cell lines. The IC50 values were calculated after 72 hours of incubation with different concentrations of CB[7]-Cinn inclusion complexes and compared to free Cinn and free CB[7]. The IC50 values for free Cinn and CB[7]-Cinn inclusion complexes were 240.17 ± 32.46 μM and 260.47 ± 20.83 μM against U-87 cells and 85.93 ± 3.35 μM and 176.3 ± 7.79 μM against MDA-MB-231 cells, respectively, despite the enhanced aqueous solubility. No significant cytotoxicity was noticed for the free CB[7].
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Affiliation(s)
- Bayan Al Tbakhi
- Department of Chemistry, School of Science, The University of Jordan Amman 11942 Jordan +962-979250409
| | - Hamdi Nsairat
- Pharmacological and Diagnostic Research Centre, Faculty of Pharmacy, Al-Ahliyya Amman University Amman 19328 Jordan
| | - Walhan Alshaer
- Cell Therapy Center, The University of Jordan Amman 11942 Jordan
| | | | - Wissam Helal
- Department of Chemistry, School of Science, The University of Jordan Amman 11942 Jordan +962-979250409
| | - Lubna Alrawashdeh
- Department of Chemistry, Faculty of Science, The Hashemite University P. O. Box 330127 Zarqa 13133 Jordan
| | - Anthony Day
- School of Science, The University of New South Wales Canberra ACT 2600 Australia
| | - Khaleel I Assaf
- Department of Chemistry, Al-Balqa Applied University Al-Salt 19117 Jordan
| | - Rola Hassouneh
- Department of Chemistry, School of Science, The University of Jordan Amman 11942 Jordan +962-979250409
| | - Fadwa Odeh
- Department of Chemistry, School of Science, The University of Jordan Amman 11942 Jordan +962-979250409
| | - Abeer Al Bawab
- Department of Chemistry, School of Science, The University of Jordan Amman 11942 Jordan +962-979250409
- Hamdi Mango Center for Scientific Research, The University of Jordan Amman 11942 Jordan +962-796661601
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Murugaiyan J, Kumar PA, Rao GS, Iskandar K, Hawser S, Hays JP, Mohsen Y, Adukkadukkam S, Awuah WA, Jose RAM, Sylvia N, Nansubuga EP, Tilocca B, Roncada P, Roson-Calero N, Moreno-Morales J, Amin R, Kumar BK, Kumar A, Toufik AR, Zaw TN, Akinwotu OO, Satyaseela MP, van Dongen MBM. Progress in Alternative Strategies to Combat Antimicrobial Resistance: Focus on Antibiotics. Antibiotics (Basel) 2022; 11:200. [PMID: 35203804 PMCID: PMC8868457 DOI: 10.3390/antibiotics11020200] [Citation(s) in RCA: 102] [Impact Index Per Article: 51.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2022] [Revised: 02/01/2022] [Accepted: 02/02/2022] [Indexed: 11/24/2022] Open
Abstract
Antibiotic resistance, and, in a broader perspective, antimicrobial resistance (AMR), continues to evolve and spread beyond all boundaries. As a result, infectious diseases have become more challenging or even impossible to treat, leading to an increase in morbidity and mortality. Despite the failure of conventional, traditional antimicrobial therapy, in the past two decades, no novel class of antibiotics has been introduced. Consequently, several novel alternative strategies to combat these (multi-) drug-resistant infectious microorganisms have been identified. The purpose of this review is to gather and consider the strategies that are being applied or proposed as potential alternatives to traditional antibiotics. These strategies include combination therapy, techniques that target the enzymes or proteins responsible for antimicrobial resistance, resistant bacteria, drug delivery systems, physicochemical methods, and unconventional techniques, including the CRISPR-Cas system. These alternative strategies may have the potential to change the treatment of multi-drug-resistant pathogens in human clinical settings.
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Affiliation(s)
- Jayaseelan Murugaiyan
- Department of Biological Sciences, SRM University-AP, Guntur District, Amaravati 522240, India;
| | - P. Anand Kumar
- Department of Veterinary Microbiology, NTR College of Veterinary Science, Sri Venkateswara Veterinary University, Gannavaram 521102, India;
| | - G. Srinivasa Rao
- Department of Veterinary Pharmacology and Toxicology, College of Veterinary Science, Sri Venkateswara Veterinary University, Tirupati 517502, India;
| | - Katia Iskandar
- Department of Mathématiques Informatique et Télécommunications, Université Toulouse III, Paul Sabatier, INSERM, UMR 1295, 31000 Toulouse, France;
- INSPECT-LB: Institut National de Santé Publique, d’Épidémiologie Clinique et de Toxicologie-Liban, Beirut 6573, Lebanon
- Faculty of Pharmacy, Lebanese University, Beirut 6573, Lebanon
| | | | - John P. Hays
- Department of Medical Microbiology, Infectious Diseases, Erasmus University Medical Centre (Erasmus MC), 3015 GD Rotterdam, The Netherlands;
| | - Yara Mohsen
- Department of Epidemiology, High Institute of Public Health, Alexandria University, Alexandria 21544, Egypt;
- Infectious Disease Clinical Pharmacist, Antimicrobial Stewardship Department, International Medical Center Hospital, Cairo 11511, Egypt
| | - Saranya Adukkadukkam
- Department of Biological Sciences, SRM University-AP, Guntur District, Amaravati 522240, India;
| | - Wireko Andrew Awuah
- Faculty of Medicine, Sumy State University, 40007 Sumy, Ukraine; (W.A.A.); (A.-R.T.)
| | - Ruiz Alvarez Maria Jose
- Research Coordination and Support Service, National Institute of Health (ISS) Viale Regina -Elena, 299, 00161 Rome, Italy;
| | - Nanono Sylvia
- Infectious Diseases Institute (IDI), College of Health Sciences, Makerere University, Kampala 7072, Uganda;
| | | | - Bruno Tilocca
- Department of Health Science, University “Magna Graecia” of Catanzaro, 88100 Catanzaro, Italy; (B.T.); (P.R.)
| | - Paola Roncada
- Department of Health Science, University “Magna Graecia” of Catanzaro, 88100 Catanzaro, Italy; (B.T.); (P.R.)
| | - Natalia Roson-Calero
- ISGlobal, Hospital Clínic-Universitat de Barcelona, 08036 Barcelona, Spain; (N.R.-C.); (J.M.-M.)
| | - Javier Moreno-Morales
- ISGlobal, Hospital Clínic-Universitat de Barcelona, 08036 Barcelona, Spain; (N.R.-C.); (J.M.-M.)
| | - Rohul Amin
- James P Grant School of Public Health, BRAC University, Dhaka 1212, Bangladesh;
| | - Ballamoole Krishna Kumar
- Nitte (Deemed to be University), Division of Infectious Diseases, Nitte University Centre for Science Education and Research, Deralakatte, Mangalore 575018, India;
| | - Abishek Kumar
- Department of Microbiology, Kasturba Medical College, Manipal, Manipal Academy of Higher Education, Manipal 576104, India;
| | - Abdul-Rahman Toufik
- Faculty of Medicine, Sumy State University, 40007 Sumy, Ukraine; (W.A.A.); (A.-R.T.)
| | - Thaint Nadi Zaw
- Oxford University Hospitals NHS Foundation Trust, Oxford OX3 9DU, UK;
| | - Oluwatosin O. Akinwotu
- Department of Microbiology and Biotechnology Centre, Maharaja Sayajirao University of Baroda, Vadodara 390002, India;
- Environmental and Biotechnology Unit, Department of Microbiology, University of Ibadan, 200132 Ibadan, Nigeria
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Du RL, Sun N, Fung YH, Zheng YY, Chen YW, Chan PH, Wong WL, Wong KY. Discovery of FtsZ inhibitors by virtual screening as antibacterial agents and study of the inhibition mechanism. RSC Med Chem 2022; 13:79-89. [PMID: 35224498 PMCID: PMC8792978 DOI: 10.1039/d1md00249j] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2021] [Accepted: 11/07/2021] [Indexed: 09/29/2023] Open
Abstract
Inhibition of bacterial cell division is a novel mechanistic action in the development of new antimicrobial agents. The FtsZ protein is an important antimicrobial drug target because of its essential role in bacterial cell division. In the present study, potential inhibitors of FtsZ were identified by virtual screening followed by in vivo and in vitro bioassays. One of the candidates, Dacomitinib (S2727), shows for the first time its potent inhibitory activity against the MRSA strains. The binding mode of Dacomitinib in FtsZ was analyzed by docking, and Asp199 and Thr265 are thought to be essential residues involved in the interactions.
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Affiliation(s)
- Ruo-Lan 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 P.R. China
| | - Ning Sun
- 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 P.R. China
| | - Yik-Hong Fung
- 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 P.R. China
| | - Yuan-Yuan 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 P.R. China
| | - Yu-Wei Chen
- 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 P.R. China
| | - Pak-Ho Chan
- 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 P.R. China
| | - Wing-Leung 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 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 Hunghom Kowloon Hong Kong P.R. China
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Thirapanmethee K, Kanathum P, Khuntayaporn P, Huayhongthong S, Surassmo S, Chomnawang MT. Cinnamaldehyde: A plant-derived antimicrobial for overcoming multidrug-resistant Acinetobacter baumannii infection. Eur J Integr Med 2021. [DOI: 10.1016/j.eujim.2021.101376] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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Mahanty S, Rathinasamy K. The natural anthraquinone dye purpurin exerts antibacterial activity by perturbing the FtsZ assembly. Bioorg Med Chem 2021; 50:116463. [PMID: 34700238 DOI: 10.1016/j.bmc.2021.116463] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2021] [Revised: 10/03/2021] [Accepted: 10/05/2021] [Indexed: 11/29/2022]
Abstract
There is an increasing demand to discover novel antibacterial drugs to counter the ever-evolving genetic machinery of bacteria. The cell division protein FtsZ plays a vital role in bacterial cytokinesis and has been recognized as an effective antibacterial drug target. In this study, we have shown that the madder dye purpurin inhibited bacterial cytokinesis through perturbation of FtsZ assembly. Purpurin inhibited the growth of bacterial cells in a concentration-dependent manner and induced bacterial cell filamentation. Microscopy studies showed that it inhibited the localization of the Z ring at the midcell, and FtsZ was dispersed throughout the cells. Further, purpurin bound firmly to FtsZ with a dissociation constant of 11 µM and inhibited its assembly in vitro. It reduced the GTP hydrolysis by binding closer to the nucleotide-binding site of FtsZ. Purpurin inhibited the proliferation of mammalian cancer cells at higher concentrations without disturbing the polymerization of tubulin. The results collectively suggest that the natural anthraquinone purpurin can potently inhibit the growth of bacteria and serve as a lead molecule for the development of antibacterial agents.
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Affiliation(s)
- Susobhan Mahanty
- School of Biotechnology, National Institute of Technology Calicut, Calicut, Kerala, India
| | - Krishnan Rathinasamy
- School of Biotechnology, National Institute of Technology Calicut, Calicut, Kerala, India.
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Evaluation of ovalbumin nanocarriers to promote the vehiculization and antifungal properties of cinnamaldehyde in aqueous media. Lebensm Wiss Technol 2021. [DOI: 10.1016/j.lwt.2021.112224] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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Zhang Z, Chen D, Lu X, Zhao R, Chen Z, Li M, Xu T, Mao Y, Yang Y, Yang Z. Directed Expression of Tracheal Antimicrobial Peptide as a Treatment for Bovine-Associated Staphylococcus Aureus-Induced Mastitis in Mice. Front Vet Sci 2021; 8:700930. [PMID: 34671659 PMCID: PMC8520960 DOI: 10.3389/fvets.2021.700930] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2021] [Accepted: 08/24/2021] [Indexed: 11/13/2022] Open
Abstract
Bovine mastitis is perplexing the dairy industry since the initiation of intensive dairy farming, which has caused a reduction in the productivity of cows and an escalation in costs. The use of antibiotics causes a series of problems, especially the formation of bacterial antimicrobial resistance. However, there are limited antibiotic-free therapeutic strategies that can effectively relieve bacterial infection of bovine mammary glands. Hence, in this study, we constructed a mammary gland tissue-specific expression vector carrying the antimicrobial peptide of bovine-derived tracheal antimicrobial peptide (TAP) and evaluated it in both primary bovine mammary epithelial cells (pBMECs) and mice. The results showed that the vector driven by the β-lactoglobulin gene (BLG) promoter could efficiently direct the expression of TAP in pBMECs and the mammary gland tissue of mice. In addition, significant antibacterial effects were observed in both in vitro and in vivo experiments when introducing this vector to bovine-associated Staphylococcus aureus-treated pBMECs and mice, respectively. This study demonstrated that the mammary gland tissue-specific expression vector could be used to introduce antimicrobial peptide both in in vitro and in vivo and will provide a new therapeutic strategy in the treatment of bovine mastitis.
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Affiliation(s)
- Zhipeng Zhang
- College of Animal Science and Technology, Yangzhou University, Yangzhou, China
| | - Daijie Chen
- College of Animal Science and Technology, Yangzhou University, Yangzhou, China
| | - Xubin Lu
- College of Animal Science and Technology, Yangzhou University, Yangzhou, China
| | - Ruifeng Zhao
- College of Animal Science and Technology, Yangzhou University, Yangzhou, China
| | - Zhi Chen
- College of Animal Science and Technology, Yangzhou University, Yangzhou, China.,Joint International Research Laboratory of Agriculture & Agri-Product Safety, Ministry of Education, Yangzhou University, Yangzhou, China
| | - Mingxun Li
- College of Animal Science and Technology, Yangzhou University, Yangzhou, China
| | - Tianle Xu
- College of Animal Science and Technology, Yangzhou University, Yangzhou, China.,Joint International Research Laboratory of Agriculture & Agri-Product Safety, Ministry of Education, Yangzhou University, Yangzhou, China
| | - Yongjiang Mao
- College of Animal Science and Technology, Yangzhou University, Yangzhou, China
| | - Yi Yang
- Joint International Research Laboratory of Agriculture & Agri-Product Safety, Ministry of Education, Yangzhou University, Yangzhou, China.,Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, College of Veterinary Medicine, Yangzhou University, Yangzhou, China
| | - Zhangping Yang
- College of Animal Science and Technology, Yangzhou University, Yangzhou, China.,Joint International Research Laboratory of Agriculture & Agri-Product Safety, Ministry of Education, Yangzhou University, Yangzhou, China
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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: 17] [Impact Index Per Article: 5.7] [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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Sun L, Rogiers G, Michiels CW. The Natural Antimicrobial trans-Cinnamaldehyde Interferes with UDP-N-Acetylglucosamine Biosynthesis and Cell Wall Homeostasis in Listeria monocytogenes. Foods 2021; 10:foods10071666. [PMID: 34359536 PMCID: PMC8307235 DOI: 10.3390/foods10071666] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2021] [Revised: 07/12/2021] [Accepted: 07/16/2021] [Indexed: 01/07/2023] Open
Abstract
Trans-cinnamaldehyde (t-CIN), an antimicrobial compound from cinnamon essential oil, is of interest because it inhibits various foodborne pathogens. In the present work, we investigated the antimicrobial mechanisms of t-CIN in Listeria monocytogenes using a previously isolated yvcK::Himar1 transposon mutant which shows hypersensitivity to t-CIN. Time-lapse microscopy revealed that t-CIN induces a bulging cell shape followed by lysis in the mutant. Complementation with wild-type yvcK gene completely restored the tolerance of yvcK::Himar1 strain to t-CIN and the cell morphology. Suppressor mutants which partially reversed the t-CIN sensitivity of the yvcK::Himar1 mutant were isolated from evolutionary experiments. Three out of five suppression mutations were in the glmU-prs operon and in nagR, which are linked to the biosynthesis of the peptidoglycan precursor uridine-diphosphate-N-acetylglucosamine (UDP-GlcNAc). GlmU catalyzes the last two steps of UDP-GlcNAc biosynthesis and NagR represses the uptake and utilization of N-acetylglucosamine. Feeding N-acetylglucosamine or increasing the production of UDP-GlcNAc synthetic enzymes fully or partially restored the t-CIN tolerance of the yvcK mutant. Together, these results suggest that YvcK plays a pivotal role in diverting substrates to UDP-GlcNAc biosynthesis in L. monocytogenes and that t-CIN interferes with this pathway, leading to a peptidoglycan synthesis defect.
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Estaiano de Rezende RA, Soares MP, Sampaio FG, Cardoso IL, Ishikawa MM, Lima Dallago BS, Rantin FT, Teixeira Duarte MC. Phytobiotics blend as a dietary supplement for Nile tilapia health improvement. FISH & SHELLFISH IMMUNOLOGY 2021; 114:293-300. [PMID: 34004271 DOI: 10.1016/j.fsi.2021.05.010] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/16/2021] [Revised: 05/04/2021] [Accepted: 05/11/2021] [Indexed: 06/12/2023]
Abstract
Functional additives of natural origin included as dietary supplements have become an alternative to synthetic antibiotics to improve health and resistance to ecologically correct pathogenic diseases in fish farming. We tested whether incorporating a mixture of phytobiotics such as volatile oils of thyme, red thyme and pepper rosemary into the diet improves growth performance, oxidative stress, immune and hematological responses and resistance of juvenile Nile tilapia when subjected to a challenge with Aeromonas hydrophila compared to a synthetic antibiotic (enrofloxacin). The experimental design was completely randomized with three experimental groups: control diet, diets containing a mixture of thyme phytobiotic essential oils, red thyme and pepper rosemary (FTB) and the synthetic antibiotic enrofloxacin (ATB), with four replicates (14 fish per repetition/experimental unit). Plasma glucose levels, leukocyte respiratory activity, serum lysozyme levels, number of circulating erythrocytes and leukocytes, levels of lipid peroxidation (LPO), catalase (CAT) and glutathione S-transferase (GST) activity at the end of 20 days of feeding (phase) were evaluated and 24 h after exposure to bacteria (phase II). The supplementation of FTB and ATB did not change the performance parameters, but it was sufficient to increase lysozyme, leukocytes, neutrophils and monocytes after the bacterial challenge, reduction of CAT and LPO activity and the highest GST activity (P < 0.05). The results of the present study suggest that FTB as a dietary supplement has benefits and can replace synthetic ATB, including supplementation with FTB for 20 days to provide greater antioxidant protection in Nile tilapia, mitigate the impacts of stressors and modulate immunity, providing to fish greater resistance and protection against diseases.
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Affiliation(s)
- Renata Antunes Estaiano de Rezende
- Chemical, Biological and Agricultural Pluridisciplinary Research Center (CPQBA), Campinas State University (UNICAMP), Paulínia, SP, Brazil.
| | - Michelly Pereira Soares
- Joint Graduate Program in Physiological Sciences, Federal University of São Carlos-UFSCar/São Paulo State University, UNESP Campus Araraquara, 13565-905, São Carlos, SP, Brazil.
| | - Fernanda Garcia Sampaio
- Embrapa Environment, Brazilian Agricultural Research Corporation (EMBRAPA), Rod. SP 340, Km 127,5, Caixa Postal 69, CEP: 13.918-110, Jaguariúna, SP, Brazil.
| | - Israel Luz Cardoso
- Joint Graduate Program in Physiological Sciences, Federal University of São Carlos-UFSCar/São Paulo State University, UNESP Campus Araraquara, 13565-905, São Carlos, SP, Brazil.
| | - Márcia Mayumi Ishikawa
- Embrapa Environment, Brazilian Agricultural Research Corporation (EMBRAPA), Rod. SP 340, Km 127,5, Caixa Postal 69, CEP: 13.918-110, Jaguariúna, SP, Brazil.
| | - Bruno Stéfano Lima Dallago
- Laboratory of Animal Welfare, Faculty of Agronomy and Veterinary Medicine, University of Brasília, Brasília, Brazil.
| | - Francisco Tadeu Rantin
- Joint Graduate Program in Physiological Sciences, Federal University of São Carlos-UFSCar/São Paulo State University, UNESP Campus Araraquara, 13565-905, São Carlos, SP, Brazil.
| | - Marta Cristina Teixeira Duarte
- Chemical, Biological and Agricultural Pluridisciplinary Research Center (CPQBA), Campinas State University (UNICAMP), Paulínia, SP, Brazil.
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Dos Santos VR, Caiaffa KS, Oliveira WCD, Pereira JA, Abuna GF, Polaquini CR, Regasini LO, Guiotti AM, Duque C. Cytotoxicity and effects of curcumin and cinnamaldehyde hybrids on biofilms of oral pathogens. BIOFOULING 2021; 37:591-605. [PMID: 34210215 DOI: 10.1080/08927014.2021.1942859] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/03/2020] [Revised: 06/04/2021] [Accepted: 06/07/2021] [Indexed: 06/13/2023]
Abstract
The objective of the study was to evaluate the cytotoxicity and effect of curcumin-cinnamaldehyde hybrids (CCHs) on the biofilm of oral pathogens. Of the 18 hybrids tested, nine had an inhibitory effect on at least one of the bacterial species tested, with minimal inhibitory and bactericidal concentrations ranging from 9 to 625 μg ml-1. CCH 7 promoted a potent inhibitory effect against all the bacterial species tested and better compatibility than chlorhexidine (CHX). CCH 7 also presented a similar or improved effect over that of CHX, causing a reduction in bacterial metabolism and viability in single and dual-species biofilms. CCH 7 reduced by 86% and 34% the viability of multispecies biofilms formed by collection and clinical strains. It can be concluded that CCH 7 was cytocompatible at the minimal inhibitory concentration, presented anti-biofilm action against oral pathogens, and could act as an antimicrobial agent for application in endodontics.
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Affiliation(s)
- Vanessa Rodrigues Dos Santos
- Department of Preventive and Restorative Dentistry, Araçatuba School of Dentistry, São Paulo State University (UNESP), Araçatuba, São Paulo, Brazil
| | - Karina Sampaio Caiaffa
- Department of Preventive and Restorative Dentistry, Araçatuba School of Dentistry, São Paulo State University (UNESP), Araçatuba, São Paulo, Brazil
| | - Warlley Campos de Oliveira
- Department of Preventive and Restorative Dentistry, Araçatuba School of Dentistry, São Paulo State University (UNESP), Araçatuba, São Paulo, Brazil
| | - Jesse Augusto Pereira
- Department of Preventive and Restorative Dentistry, Araçatuba School of Dentistry, São Paulo State University (UNESP), Araçatuba, São Paulo, Brazil
| | - Gabriel Flores Abuna
- Department of Restorative Dentistry, Faculty of Dentistry of Piracicaba, University of Campinas (UNICAMP), Piracicaba, São Paulo, Brazil
| | - Carlos Roberto Polaquini
- Department of Chemistry and Environmental Sciences, Institute of Biosciences, Humanities and Exact Sciences, São Paulo State University (UNESP), São José do Rio Preto, São Paulo, Brazil
| | - Luís Octávio Regasini
- Department of Chemistry and Environmental Sciences, Institute of Biosciences, Humanities and Exact Sciences, São Paulo State University (UNESP), São José do Rio Preto, São Paulo, Brazil
| | - Aimée Maria Guiotti
- Department of Dental Materials and Prosthodontics, Araçatuba School of Dentistry, São Paulo State University (UNESP), Araçatuba, São Paulo, Brazil
| | - Cristiane Duque
- Department of Preventive and Restorative Dentistry, Araçatuba School of Dentistry, São Paulo State University (UNESP), Araçatuba, São Paulo, Brazil
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Trans-Cinnamaldehyde Attenuates Enterococcus faecalis Virulence and Inhibits Biofilm Formation. Antibiotics (Basel) 2021; 10:antibiotics10060702. [PMID: 34208134 PMCID: PMC8230787 DOI: 10.3390/antibiotics10060702] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2021] [Revised: 06/09/2021] [Accepted: 06/09/2021] [Indexed: 11/21/2022] Open
Abstract
Enterococcus faecalis as an important nosocomial pathogen is critically implicated in the pathogenesis of endocarditis, urinary tract, and persistent root canal infections. Its major virulence attributes (biofilm formation, production of proteases, and hemolytic toxins) enable it to cause extensive host tissue damage. With the alarming increase in enterococcal resistance to antibiotics, novel therapeutics are required to inhibit E. faecalis biofilm formation and virulence. Trans-cinnamaldehyde (TC), the main phytochemical in cinnamon essential oils, has demonstrated promising activity against a wide range of pathogens. Here, we comprehensively investigated the effect of TC on planktonic growth, biofilm formation, proteolytic and hemolytic activities, as well as gene regulation in E. faecalis. Our findings revealed that sub-inhibitory concentrations of TC reduced biofilm formation, biofilm exopolysaccharides, as well as its proteolytic and hemolytic activities. Mechanistic studies revealed significant downregulation of the quorum sensing fsr locus and downstream gelE, which are major virulence regulators in E. faecalis. Taken together, our study highlights the potential of TC to inhibit E. faecalis biofilm formation and its virulence.
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Yang K, Liu A, Hu A, Li J, Zen Z, Liu Y, Tang S, Li C. Preparation and characterization of cinnamon essential oil nanocapsules and comparison of volatile components and antibacterial ability of cinnamon essential oil before and after encapsulation. Food Control 2021. [DOI: 10.1016/j.foodcont.2020.107783] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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Song D, Zhang N, Zhang P, Zhang N, Chen W, Zhang L, Guo T, Gu X, Ma S. Design, synthesis and evaluation of novel 9-arylalkyl-10-methylacridinium derivatives as highly potent FtsZ-targeting antibacterial agents. Eur J Med Chem 2021; 221:113480. [PMID: 33964649 DOI: 10.1016/j.ejmech.2021.113480] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2021] [Revised: 04/13/2021] [Accepted: 04/15/2021] [Indexed: 01/28/2023]
Abstract
With the increasing incidence of antibiotic resistance, new antibacterial agents having novel mechanisms of action hence are in an urgent need to combat infectious diseases caused by multidrug-resistant (MDR) pathogens. Four novel series of substituted 9-arylalkyl-10-methylacridinium derivatives as FtsZ inhibitors were designed, synthesized and evaluated for their antibacterial activities against various Gram-positive and Gram-negative bacteria. The results demonstrated that they exhibited broad-spectrum activities with substantial efficacy against MRSA and VRE, which were superior or comparable to the berberine, sanguinarine, linezolid, ciprofloxacin and vancomycin. In particular, the most promising compound 15f showed rapid bactericidal properties, which avoid the emergence of drug resistance. However, 15f showed no inhibitory effect on Gram-negative bacteria but biofilm formation study gave possible answers. Further target identification and mechanistic studies revealed that 15f functioned as an effective FtsZ inhibitor to alter the dynamics of FtsZ self-polymerization, which resulted in termination of the cell division and caused cell death. Further cytotoxicity and animal studies demonstrated that 15f not only displayed efficacy in a murine model of bacteremia in vivo, but also no significant hemolysis to mammalian cells. Overall, this compound with novel skeleton could serve as an antibacterial lead of FtsZ inhibitor for further evaluation of drug-likeness.
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Affiliation(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, 44 West Wenhua Road, Jinan, 250012, China
| | - Nan Zhang
- Department of Medicinal Chemistry, Key Laboratory of Chemical Biology (Ministry of Education), School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, 44 West Wenhua Road, Jinan, 250012, China
| | - Panpan Zhang
- Department of Medicinal Chemistry, Key Laboratory of Chemical Biology (Ministry of Education), School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, 44 West Wenhua Road, Jinan, 250012, China
| | - Na Zhang
- Department of Medicinal Chemistry, Key Laboratory of Chemical Biology (Ministry of Education), School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, 44 West Wenhua Road, Jinan, 250012, China
| | - Weijin Chen
- Department of Medicinal Chemistry, Key Laboratory of Chemical Biology (Ministry of Education), School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, 44 West Wenhua Road, Jinan, 250012, China
| | - Long Zhang
- Department of Medicinal Chemistry, Key Laboratory of Chemical Biology (Ministry of Education), School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, 44 West Wenhua Road, Jinan, 250012, China
| | - Ting Guo
- Department of Medicinal Chemistry, Key Laboratory of Chemical Biology (Ministry of Education), School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, 44 West Wenhua Road, Jinan, 250012, China
| | - Xiaotong Gu
- Department of Medicinal Chemistry, Key Laboratory of Chemical Biology (Ministry of Education), School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, 44 West Wenhua Road, Jinan, 250012, China
| | - Shutao Ma
- Department of Medicinal Chemistry, Key Laboratory of Chemical Biology (Ministry of Education), School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, 44 West Wenhua Road, Jinan, 250012, China.
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Schreiner T, Morlock GE. Non-target bioanalytical eight-dimensional hyphenation including bioassay, heart-cut trapping, online desalting, orthogonal separations and mass spectrometry. J Chromatogr A 2021; 1647:462154. [PMID: 33957351 DOI: 10.1016/j.chroma.2021.462154] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2020] [Revised: 03/22/2021] [Accepted: 04/08/2021] [Indexed: 12/17/2022]
Abstract
It is still a challenge to discover and identify individual bioactive compounds directly in multicomponent mixtures. Current workflows are too tedious for routine use. Hence, the hyphenation of separation and detection techniques is a powerful tool to maximize the information obtained by a single sample run. A robust eight-dimensional (8D) hyphenation was developed. Orthogonal separations, biological assay detection, analyte trapping, desalting, and physico-chemical detections were arranged in the following order, i.e. 1) normal phase high-performance thin-layer chromatography (NP-HPTLC) separation, 2) Vis detection, 3) UV detection, 4) fluorescence detection (FLD), 5) bioassay for effect-directed analysis (EDA), 6) heart-cut trapping/desalting/elution to reversed phase high-performance liquid chromatography (RP-HPLC) separation, 7) photodiode array (PDA) and 8) mass spectrometry (MS) detection. For the first time, the hyphenation exploited online analyte trapping to desalt the eluted bioactive zone from the plate containing highly salted bioassay media. Subsequent valve switching guided the trapped analyte(s) to the main column, followed by multiple detection. As proof-of-principle, cinnamon samples were analyzed by NP-HPTLC-UV/Vis/FLD-EDA-RP-HPLC-PDA-MS, whereby a bioactive zone was separated into two distinct peaks detected by PDA and MS to be 2-methoxy cinnamaldehyde and cinnamaldehyde. The developed 8D hyphenation is applicable for routine, allowing the non-target high-throughput screening of complex samples for individual bioactive compounds.
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Affiliation(s)
- Tamara Schreiner
- Chair of Food Science, Institute of Nutritional Science, and Interdisciplinary Research Center (iFZ), Justus Liebig University Giessen, Heinrich-Buff-Ring 26-32, 35392 Giessen, Germany
| | - Gertrud E Morlock
- Chair of Food Science, Institute of Nutritional Science, and Interdisciplinary Research Center (iFZ), Justus Liebig University Giessen, Heinrich-Buff-Ring 26-32, 35392 Giessen, Germany.
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Gafur A, Sukamdani GY, Kristi N, Maruf A, Xu J, Chen X, Wang G, Ye Z. From bulk to nano-delivery of essential phytochemicals: recent progress and strategies for antibacterial resistance. J Mater Chem B 2021; 8:9825-9835. [PMID: 33000844 DOI: 10.1039/d0tb01671c] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Bacterial biofilms caused by antibiotic resistance are a severe cause of infection threatening human health nowadays. The primary causes of this emerging threat are poor penetration of conventional antibiotics and the growing number of varied strains of resistant bacteria. Recently, bulk phytochemical oils have been widely explored for their potential as antibacterial agents. However, due to their poor solubility, low stability, and highly volatile properties, essential oils are not effective for in vitro and in vivo antibacterial applications and require further preparation. In this review, we discuss the recent progress and strategies to overcome the drawbacks of bulk phytochemical oils using nano-delivery, as well as the current challenges and future outlook of these nano-delivery systems against bacterial resistance.
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Affiliation(s)
- Alidha Gafur
- Key Laboratory for Biorheological Science and Technology of Ministry of Education, State and Local Joint Engineering Laboratory for Vascular Implants, Bioengineering College, Faculty of Medicine, Chongqing University, Chongqing, 400030, China.
| | - Gerry Yusuf Sukamdani
- Key Laboratory for Biorheological Science and Technology of Ministry of Education, State and Local Joint Engineering Laboratory for Vascular Implants, Bioengineering College, Faculty of Medicine, Chongqing University, Chongqing, 400030, China.
| | - Natalia Kristi
- Key Laboratory for Biorheological Science and Technology of Ministry of Education, State and Local Joint Engineering Laboratory for Vascular Implants, Bioengineering College, Faculty of Medicine, Chongqing University, Chongqing, 400030, China.
| | - Ali Maruf
- Key Laboratory for Biorheological Science and Technology of Ministry of Education, State and Local Joint Engineering Laboratory for Vascular Implants, Bioengineering College, Faculty of Medicine, Chongqing University, Chongqing, 400030, China.
| | - Jing Xu
- Key Laboratory for Biorheological Science and Technology of Ministry of Education, State and Local Joint Engineering Laboratory for Vascular Implants, Bioengineering College, Faculty of Medicine, Chongqing University, Chongqing, 400030, China.
| | - Xue Chen
- Key Laboratory for Biorheological Science and Technology of Ministry of Education, State and Local Joint Engineering Laboratory for Vascular Implants, Bioengineering College, Faculty of Medicine, Chongqing University, Chongqing, 400030, China.
| | - Guixue Wang
- Key Laboratory for Biorheological Science and Technology of Ministry of Education, State and Local Joint Engineering Laboratory for Vascular Implants, Bioengineering College, Faculty of Medicine, Chongqing University, Chongqing, 400030, China.
| | - Zhiyi Ye
- Key Laboratory for Biorheological Science and Technology of Ministry of Education, State and Local Joint Engineering Laboratory for Vascular Implants, Bioengineering College, Faculty of Medicine, Chongqing University, Chongqing, 400030, China.
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50
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Du GF, Yin XF, Yang DH, He QY, Sun X. Proteomic Investigation of the Antibacterial Mechanism of trans-Cinnamaldehyde against Escherichia coli. J Proteome Res 2021; 20:2319-2328. [PMID: 33749271 DOI: 10.1021/acs.jproteome.0c00847] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Trans-Cinnamaldehyde (TC) is a widely used food additive, known for its sterilization, disinfection, and antiseptic properties. However, its antibacterial mechanism is not completely understood. In this study, quantitative proteomics was performed to investigate differentially expressed proteins (DEPs) in Escherichia coli in response to TC treatment. Bioinformatics analysis suggested aldehyde toxicity, acid stress, oxidative stress, interference of carbohydrate metabolism, energy metabolism, and protein translation as the bactericidal mechanism. E. coli BW25113ΔyqhD, ΔgldA, ΔbetB, ΔtktB, ΔgadA, ΔgadB, ΔgadC, and Δrmf were used to investigate the functions of DEPs through biochemical methods. The present study revealed that TC exerts its antibacterial effects by inducing the toxicity of its aldehyde group producing acid stress. These findings will contribute to the application of TC in the antibacterial field.
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Affiliation(s)
- Gao-Fei Du
- MOE Key Laboratory of Tumor Molecular Biology and Key Laboratory of Functional Protein Research of Guangdong Higher Education Institutes, Institute of Life and Health Engineering, Jinan University, Guangzhou 510632, China.,Medical Technology School, Xuzhou Medical University, Xuzhou, Jiangsu 221004, China
| | - Xing-Feng Yin
- MOE Key Laboratory of Tumor Molecular Biology and Key Laboratory of Functional Protein Research of Guangdong Higher Education Institutes, Institute of Life and Health Engineering, Jinan University, Guangzhou 510632, China
| | - Dong-Hong Yang
- MOE Key Laboratory of Tumor Molecular Biology and Key Laboratory of Functional Protein Research of Guangdong Higher Education Institutes, Institute of Life and Health Engineering, Jinan University, Guangzhou 510632, China
| | - Qing-Yu He
- MOE Key Laboratory of Tumor Molecular Biology and Key Laboratory of Functional Protein Research of Guangdong Higher Education Institutes, Institute of Life and Health Engineering, Jinan University, Guangzhou 510632, China
| | - Xuesong Sun
- MOE Key Laboratory of Tumor Molecular Biology and Key Laboratory of Functional Protein Research of Guangdong Higher Education Institutes, Institute of Life and Health Engineering, Jinan University, Guangzhou 510632, China
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