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Caburet J, Verdirosa F, Moretti M, Roulier B, Simoncelli G, Haudecoeur R, Ghazi S, Jamet H, Docquier JD, Boucherle B, Peuchmaur M. Aurones and derivatives as promising New Delhi metallo-β-lactamase (NDM-1) inhibitors. Bioorg Med Chem 2024; 97:117559. [PMID: 38109811 DOI: 10.1016/j.bmc.2023.117559] [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: 07/10/2023] [Revised: 11/24/2023] [Accepted: 12/11/2023] [Indexed: 12/20/2023]
Abstract
Bacterial resistance is undoubtedly one of the main public health concerns especially with the emergence of metallo-β-lactamases (MBLs) able to hydrolytically inactivate β-lactam antibiotics. Currently, there are no inhibitors of MBLs in clinical use to rescue antibiotic action and the New Delhi metallo-β-lactamase-1 (NDM-1) is still considered as one of the most relevant targets for inhibitor development. Following a fragment-based strategy to find new NDM-1 inhibitors, we identified aurone as a promising scaffold. A series of 60 derivatives were then evaluated and two of them were identified as promising inhibitors with Ki values as low as 1.7 and 2.5 µM. Moreover, these two most active compounds were able to potentiate meropenem in in vitro antimicrobial susceptibility assays. The molecular modelling provided insights about their likely interactions with the active site of NDM-1, thus enabling further improvement in the structure of this new inhibitor family.
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Affiliation(s)
| | - Federica Verdirosa
- Dipartimento di Biotecnologie Mediche, Università degli Studi di Siena, 53100 Siena, Italy
| | - Matis Moretti
- Univ. Grenoble Alpes, CNRS, DPM, 38000 Grenoble, France
| | | | - Giorgia Simoncelli
- Dipartimento di Biotecnologie Mediche, Università degli Studi di Siena, 53100 Siena, Italy
| | | | - Somayeh Ghazi
- Univ. Grenoble Alpes, CNRS, DPM, 38000 Grenoble, France
| | - Hélène Jamet
- Univ. Grenoble Alpes, CNRS, DCM, 38000 Grenoble, France
| | - Jean-Denis Docquier
- Dipartimento di Biotecnologie Mediche, Università degli Studi di Siena, 53100 Siena, Italy; Laboratoire de Bactériologie Moléculaire, UR-InBioS, Université de Liège, 4000 Liège, Belgium
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Mendes PM, Gomes Fontoura GM, Rodrigues LDS, Souza AS, Viana JPM, Fernandes Pereira AL, Dutra RP, Nogueira Ferreira AG, Neto MS, Reis AS, Berretta AA, Monteiro-Neto V, Maciel MCG. Therapeutic Potential of Punica granatum and Isolated Compounds: Evidence-Based Advances to Treat Bacterial Infections. Int J Microbiol 2023; 2023:4026440. [PMID: 38144901 PMCID: PMC10746376 DOI: 10.1155/2023/4026440] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2023] [Revised: 11/17/2023] [Accepted: 11/30/2023] [Indexed: 12/26/2023] Open
Abstract
Punica granatum Linn has been known for its nutritional and medicinal value since ancient times and is used in the treatment of various pathologies owing to its antibacterial properties. This review reports the results of the most recent studies on the antibacterial effects of P. granatum and its isolated compounds on bacteria of clinical interest. A search in the PubMed, Scopus, Science Direct, and Science Citation Index Expanded (Web of Science) databases was performed, which included articles that evaluated the antibacterial activity of P. granatum extracts and excluded articles that analyzed other microorganisms or nonpathogenic bacteria, as well as theses, dissertations, duplicate articles, and those not fully available. The literature suggests that P. granatum extracts can act on bacteria, such as methicillin-sensitive Staphylococcus aureus (MSSA), methicillin-resistant S. aureus (MRSA), Streptococcus mutans, Escherichia coli, Pseudomonas aeruginosa, and Klebsiella pneumoniae. In addition, fruit peel was the most commonly used pharmacogen and methanol, ethanol, and water were the most common solvents for the extraction of bioactive compounds. The antibacterial potential of the methanolic extract of pomegranate peel could be attributed to the presence of active compounds, such as 5-hydroxymethylfurfural, punicic acid, gallic acid, and punicalagin. Thus, there is evidence that these plant extracts, having high polyphenol content, can disrupt the bacterial plasma membrane and inhibit the action of proteins related to antimicrobial resistance. P. granatum shows antibacterial activity against Gram-positive and Gram-negative bacteria, with great potential against multidrug-resistant strains. Further research is needed to clarify the mechanism of action related to this biological activity and investigate the isolated substances that may be responsible for the antibacterial effects.
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Affiliation(s)
| | - Guilherme Martins Gomes Fontoura
- Graduate Program in Health and Technology, Center of Sciences in Imperatriz, Federal University of Maranhão, Imperatriz 65915-240, Brazil
| | | | - Aloiso Sampaio Souza
- Department of Medicine, Afya Faculty of Medical Sciences, Bragança 68600-000, Brazil
| | | | - Ana Lucia Fernandes Pereira
- Graduate Program in Health and Technology, Center of Sciences in Imperatriz, Federal University of Maranhão, Imperatriz 65915-240, Brazil
| | - Richard Pereira Dutra
- Graduate Program in Health and Technology, Center of Sciences in Imperatriz, Federal University of Maranhão, Imperatriz 65915-240, Brazil
| | - Adriana Gomes Nogueira Ferreira
- Graduate Program in Health and Technology, Center of Sciences in Imperatriz, Federal University of Maranhão, Imperatriz 65915-240, Brazil
| | - Marcelino Santos Neto
- Graduate Program in Health and Technology, Center of Sciences in Imperatriz, Federal University of Maranhão, Imperatriz 65915-240, Brazil
| | - Aramys Silva Reis
- Graduate Program in Health and Technology, Center of Sciences in Imperatriz, Federal University of Maranhão, Imperatriz 65915-240, Brazil
| | - Andresa Aparecida Berretta
- Research, Development & Innovation Department, Apis Flora Industrial e Comercial Ltda, São Paulo 14020-670, Brazil
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Diaz A, G S, Balaji S, Ramakrishnan J, Thamotharan S, Ramakrishnan V. Comprehensive screening of marine metabolites against class B1 metallo-β-lactamases of Klebsiella pneumoniae using two-pronged in silico approach. J Biomol Struct Dyn 2023; 41:10930-10943. [PMID: 36541935 DOI: 10.1080/07391102.2022.2159532] [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: 08/01/2022] [Accepted: 12/10/2022] [Indexed: 12/24/2022]
Abstract
The emergence of antibiotic resistance is one of the major global threats in healthcare. Metallo-β-Lactamases (MBL) are a class of enzymes in bacteria that cleave β-lactam antibiotics and confer resistance. MBLs are further divided into subclasses B1, B2 and B3. Of these, subclasses B1-MBLs (including NDM-1, VIM-2 and IMP-1) constitute the clinically prevalent lactamases conferring resistance. To date, no effective drugs are available clinically against MBLs. In this work, we aim to identify potent inhibitors for the B1 subclass of MBL from available marine metabolites in Comprehensive Marine Natural Product database through integrated in silico approaches. We have used two methods, namely, the high-throughput strategy and the pharmacophore-based strategy to identify potential inhibitors from marine metabolites. High-throughput virtual screening identified N-methyl mycosporine-Ser, which had the highest binding affinity to NDM-1. The pharmacophore-based approach based on co-crystallized ligands identified makaluvic acid and didymellamide with higher binding affinity across B1-MBLs. Taking into account of the advantage of a pharmacophore model-based approach with higher binding affinity, we conclude that both makaluvic acid and didymellamide show potential broad-spectrum effects by binding to all three B1-MBL receptors. The study also indicates the need to take multiple in silico approaches to screen and identify novel inhibitors. Together, our study reveals promising inhibitors that can be identified from marine systems.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- Aathithya Diaz
- School of Chemical & Biotechnology, SASTRA Deemed to be University, Thanjavur, India
- Bioinformatics Center, School of Chemical and Biotechnology, SASTRA Deemed to be University, Thanjavur, India
| | - Shripushkar G
- School of Chemical & Biotechnology, SASTRA Deemed to be University, Thanjavur, India
| | - Shruti Balaji
- School of Chemical & Biotechnology, SASTRA Deemed to be University, Thanjavur, India
| | | | - Subbiah Thamotharan
- School of Chemical & Biotechnology, SASTRA Deemed to be University, Thanjavur, India
- Bioinformatics Center, School of Chemical and Biotechnology, SASTRA Deemed to be University, Thanjavur, India
| | - Vigneshwar Ramakrishnan
- School of Chemical & Biotechnology, SASTRA Deemed to be University, Thanjavur, India
- Bioinformatics Center, School of Chemical and Biotechnology, SASTRA Deemed to be University, Thanjavur, India
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4
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Kongkham B, Yadav A, Ojha MD, Prabakaran D, P H. In vitro and computational studies of the β-lactamase inhibition and β-lactam potentiating properties of plant secondary metabolites. J Biomol Struct Dyn 2023; 41:10326-10346. [PMID: 36510677 DOI: 10.1080/07391102.2022.2154843] [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: 07/05/2022] [Accepted: 11/28/2022] [Indexed: 12/15/2022]
Abstract
β-lactam resistance in bacteria is primarily mediated through the production of β-lactamases. Among the several strategies explored to mitigate the issue of β-lactam resistance, the use of plant secondary metabolites in combination with existing β-lactams seem promising. The present study aims to identify possible β-lactam potentiating plant secondary metabolites following in vitro and in silico approaches. Among 180 extracts from selected 30 medicinal plants, acetone extract of Ficus religiosa (FRAE) bark recorded the least IC50 value of 3.9 mg/ml. Under in vitro conditions, FRAE potentiated the activity of ampicillin, which was evidenced by the significant reduction in IC50 values of ampicillin against multidrug resistant bacteria. Metabolic profiling following HR-LCMS analysis revealed the presence of diverse metabolites viz. flavonoids, alkaloids, terpenoids, etc. in FRAE. Further, ensemble docking of the FRAE metabolites against four Class A β-lactamase (SHV1, TEM1, KPC2 and CTX-M-27) showed quercetin, taxifolin, myricetin, luteolin, and miquelianin as potential inhibitors with the least average binding energy. In molecular dynamic simulation studies, myricetin formed the most stable complex with SHV1 and KPC-2 while miquelianin with TEM1 and CTX-M-27. Further, all five metabolites interacted with amino acid residue Glu166 in Ω loop of β-lactamase, interfering with the deacylation step, thereby disrupting the enzyme activity. The pharmacokinetics and ADMET profile indicate their drug-likeness and non-toxic nature, making them ideal β-lactam potentiators. This study highlights the ability of metabolites present in FRAE to act as β-lactamase inhibitors.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- Bhani Kongkham
- Environmental Biotechnology Lab, Centre for Rural Development and Technology, Indian Institute of Technology Delhi, New Delhi, India
| | - Ajay Yadav
- Environmental Biotechnology Lab, Centre for Rural Development and Technology, Indian Institute of Technology Delhi, New Delhi, India
| | - Monu Dinesh Ojha
- Environmental Biotechnology Lab, Centre for Rural Development and Technology, Indian Institute of Technology Delhi, New Delhi, India
| | - Duraivadivel Prabakaran
- Environmental Biotechnology Lab, Centre for Rural Development and Technology, Indian Institute of Technology Delhi, New Delhi, India
| | - Hariprasad P
- Environmental Biotechnology Lab, Centre for Rural Development and Technology, Indian Institute of Technology Delhi, New Delhi, India
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Farid N, Waheed A, Motwani S. Synthetic and natural antimicrobials as a control against food borne pathogens: A review. Heliyon 2023; 9:e17021. [PMID: 37484319 PMCID: PMC10361103 DOI: 10.1016/j.heliyon.2023.e17021] [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: 07/08/2022] [Revised: 05/28/2023] [Accepted: 06/04/2023] [Indexed: 07/25/2023] Open
Abstract
Food borne pathogens are one of the most common yet concerning cause of illnesses around the globe. These microbes invade the body via food items, through numerous mediums of contamination and it is impossible to completely eradicate these organisms from food. Extensive research has been made regarding their treatment. Unfortunately, the only available treatment currently is by antibiotics. Recent exponential increase in antibiotic resistance and the side effect of synthetic compounds have established a need for alternate therapies that could be utilized either on their own or along with antibiotics to provide protection against food-borne diseases. The aim of this review is to provide information regarding some common food borne diseases, their current and possible natural treatment. It will include details regarding some common foodborne pathogens, the disease they cause, prevalence, manifestations and treatment of the respective disease. Some natural modes of potential treatment will be summarized, which including phytochemicals, derived from plants either as crude extracts or as purified form and Bacteriocins as microbial based treatment, obtained from various types of bacteria. The paper will describe their mechanism of action, classification, susceptible organisms, some antimicrobial compounds and producing organisms, application in food systems and as potential treatment. Along with that, synthetic treatment i.e., antibiotics will be discussed including the first-line treatment of some common food borne infections, prevalence and mechanism of resistance against antibiotics in the pathogens.
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Affiliation(s)
- Neha Farid
- Corresponding author. Shaheed Zulfikar Ali Bhutto Institute of Science and Technology, Pakistan.
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Lu WJ, Tsui YC, Chang CJ, Hsu PH, Huang MY, Lai M, Lian YW, Chen CL, Lin HTV. Characterization and Potentiating Effects of the Ethanolic Extracts of the Red Seaweed Gracillaria sp. on the Activity of Carbenicillin against Vibrios. ACS OMEGA 2022; 7:46486-46493. [PMID: 36570316 PMCID: PMC9773811 DOI: 10.1021/acsomega.2c05288] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/17/2022] [Accepted: 11/29/2022] [Indexed: 06/17/2023]
Abstract
β-lactam-resistant Vibrio strains are a significant clinical problem, and β-lactamase inhibitors are generally coadministered with β-lactam drugs to control drug-resistant bacteria. Seaweed is a rich source of natural bioactive compounds; however, their potential as β-lactamase inhibitors against bacterial pathogens remains unknown. Herein, we evaluated the potential β-lactamase inhibitory effect of the ethanolic extracts of the red seaweed Gracilaria sp. (GE) against four Vibrio strains. The minimum inhibitory concentration, half-maximal inhibitory concentration, checkerboard assay results, and time-kill study results indicate that GE has limited antibacterial activity but can potentiate the activity of the β-lactam antibiotic carbenicillin against Vibrio parahemolyticus and V. cholerae. We overexpressed and purified recombinant metallo-β-lactamase, VarG, from V. cholerae for in vitro studies and observed that adding GE reduced the carbenicillin and nitrocefin degradation by VarG by 20% and 60%, respectively. Angiotensin I-converting enzyme inhibition studies demonstrated that GE did not inhibit VarG via metal chelation. Toxicity assays indicated that GE exhibited mild toxicity against human cells. Through gas chromatography and mass spectrometry, we showed that GE comprises alkaloids, phenolic compounds, terpenoids, terpenes, and halogenated aromatic compounds. This study revealed that extracts of the red seaweed Gracillaria sp. can potentially inhibit β-lactamase activity.
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Affiliation(s)
- Wen-Jung Lu
- Department
of Food Science, National Taiwan Ocean University, No. 2 Pei-Ning Road, Keelung 202301, Taiwan
| | - Ya-Chin Tsui
- Department
of Food Science, National Taiwan Ocean University, No. 2 Pei-Ning Road, Keelung 202301, Taiwan
| | - Chun-Ju Chang
- Department
of Food Science, National Taiwan Ocean University, No. 2 Pei-Ning Road, Keelung 202301, Taiwan
| | - Pang-Hung Hsu
- Center
of Excellence for the Oceans, National Taiwan
Ocean University, No. 2 Pei-Ning Road, Keelung 202301, Taiwan
- Department
of Bioscience and Biotechnology, National
Taiwan Ocean University, No. 2 Pei-Ning Road, Keelung 202301, Taiwan, R. O. C
- Institute
of Biochemistry and Molecular Biology, National
Yang Ming Chiao Tung University, No. 155, Sec. 2, Linong Street, Taipei 112304, Taiwan
| | - Mei-Ying Huang
- Division
of Aquaculture, Fisheries Research Institute,
Council of Agriculture, No. 199, Hou-Ih Road, Keelung 202008, Taiwan
| | - Margaret Lai
- Department
of Food Science, National Taiwan Ocean University, No. 2 Pei-Ning Road, Keelung 202301, Taiwan
| | - Yu-Wei Lian
- Department
of Food Science, National Taiwan Ocean University, No. 2 Pei-Ning Road, Keelung 202301, Taiwan
| | - Chia-Lin Chen
- Department
of Food Science, National Taiwan Ocean University, No. 2 Pei-Ning Road, Keelung 202301, Taiwan
| | - Hong-Ting Victor Lin
- Department
of Food Science, National Taiwan Ocean University, No. 2 Pei-Ning Road, Keelung 202301, Taiwan
- Center
of Excellence for the Oceans, National Taiwan
Ocean University, No. 2 Pei-Ning Road, Keelung 202301, Taiwan
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Enzyme Inhibitors: The Best Strategy to Tackle Superbug NDM-1 and Its Variants. Int J Mol Sci 2021; 23:ijms23010197. [PMID: 35008622 PMCID: PMC8745225 DOI: 10.3390/ijms23010197] [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: 12/11/2021] [Revised: 12/20/2021] [Accepted: 12/23/2021] [Indexed: 01/06/2023] Open
Abstract
Multidrug bacterial resistance endangers clinically effective antimicrobial therapy and continues to cause major public health problems, which have been upgraded to unprecedented levels in recent years, worldwide. β-Lactam antibiotics have become an important weapon to fight against pathogen infections due to their broad spectrum. Unfortunately, the emergence of antibiotic resistance genes (ARGs) has severely astricted the application of β-lactam antibiotics. Of these, New Delhi metallo-β-lactamase-1 (NDM-1) represents the most disturbing development due to its substrate promiscuity, the appearance of variants, and transferability. Given the clinical correlation of β-lactam antibiotics and NDM-1-mediated resistance, the discovery, and development of combination drugs, including NDM-1 inhibitors, for NDM-1 bacterial infections, seems particularly attractive and urgent. This review summarizes the research related to the development and optimization of effective NDM-1 inhibitors. The detailed generalization of crystal structure, enzyme activity center and catalytic mechanism, variants and global distribution, mechanism of action of existing inhibitors, and the development of scaffolds provides a reference for finding potential clinically effective NDM-1 inhibitors against drug-resistant bacteria.
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Recent strategies for inhibiting multidrug-resistant and β-lactamase producing bacteria: A review. Colloids Surf B Biointerfaces 2021; 205:111901. [PMID: 34116398 DOI: 10.1016/j.colsurfb.2021.111901] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2021] [Revised: 05/24/2021] [Accepted: 06/01/2021] [Indexed: 12/26/2022]
Abstract
β-lactam antibiotics are one of the most commonly used drugs for treating bacterial infections, but their clinical effectiveness has been severely affected with bacteria developing resistance against their action. Production of β-lactamase enzymes by bacteria that can degrade β-lactams is the most common mechanism of acquiring such resistance, leading to the emergence of multiple-drug resistance in them. Therefore, the development of efficient approaches to combat infections caused by β-lactamase producing and multidrug-resistant bacteria is the need of the hour. The present review attempts to understand such recent strategies that are in line for development as potential alternatives to conventional antibiotics. We find that apart from efforts being made to develop new antibiotics, several other approaches are being explored, which can help tackle infections caused by resistant bacteria. This includes the development of plant-based drugs, antimicrobial peptides, nano-formulations, bacteriophage therapy, use of CRISPR-Cas9, RNA silencing and antibiotic conjugates with nanoparticles of antimicrobial peptides. The mechanism of action of these novel approaches and potential issues limiting their translation from laboratory to clinics is also discussed. The review is important from an interesting knowledge base which can be useful for researchers working in this domain.
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Keawchai K, Chumkaew P, Permpoonpattana P, Srisawat T. Synergistic effect of ampicillin and dihydrobenzofuran neolignans (myticaganal C) identified from the seeds of Myristica fragrans Houtt. against Escherichia coli. J Adv Pharm Technol Res 2021; 12:79-83. [PMID: 33532360 PMCID: PMC7832196 DOI: 10.4103/japtr.japtr_85_20] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2020] [Revised: 08/19/2020] [Accepted: 09/08/2020] [Indexed: 11/04/2022] Open
Abstract
The present study was designed to enhance the antibacterial activity of ampicillin against Escherichia coli by combining it with myticaganal C. Antibacterial activity of ampicillin combined with myticaganal C against E. coli was assessed by agar well diffusion. Minimum inhibitory concentrations (MICs) and synergy by checkerboard assay of ampicillin and myticaganal C were assessed by resazurin-based 96-well microdilution. Bacterial responses were assessed by flow cytometry. Ampicillin in combination with myticaganal C showed better zone of inhibition (31.67 ± 0.58 mm) than myticaganal C or ampicillin alone. MIC of ampicillin was found to be 12.5 μg/mL, but myticaganal C was ineffective against E. coli. Myticaganal C (8000 μg/mL) with ampicillin (0.0975 μg/mL) exhibited strong synergy, so the need for ampicillin was reduced 128-fold. Combination inhibited E. coli by acting on cell membrane and by granularity disruptions. These findings indicate that myticaganal C enhances the potential of ampicillin against E. coli, thus providing an effective alternative to deal with the problem of bacterial resistance.
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Affiliation(s)
- Kanokrat Keawchai
- Department of Agricultural Science and Technology, Faculty of Science and Industrial Technology, Prince of Songkla University, Surat Thani Campus, Surat Thani, Thailand
| | - Parinuch Chumkaew
- Department of Agricultural Science and Technology, Faculty of Science and Industrial Technology, Prince of Songkla University, Surat Thani Campus, Surat Thani, Thailand
| | - Patima Permpoonpattana
- Department of Agricultural Science and Technology, Faculty of Science and Industrial Technology, Prince of Songkla University, Surat Thani Campus, Surat Thani, Thailand.,Department of Agricultural Science, Faculty of Innovative Agriculture and Fisheries, Prince of Songkla University, Surat Thani Campus, Surat Thani, Thailand
| | - Theera Srisawat
- Department of Agricultural Science and Technology, Faculty of Science and Industrial Technology, Prince of Songkla University, Surat Thani Campus, Surat Thani, Thailand.,Department of Agricultural Science, Faculty of Innovative Agriculture and Fisheries, Prince of Songkla University, Surat Thani Campus, Surat Thani, Thailand
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Jalali A, Kiafar M, Seddigh M, Zarshenas MM. Punica granatum as a Source of Natural Antioxidant and Antimicrobial Agent: A Comprehensive Review on Related Investigations. Curr Drug Discov Technol 2021; 18:207-224. [PMID: 32351184 DOI: 10.2174/1570163817666200430001822] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2019] [Revised: 01/16/2020] [Accepted: 02/04/2020] [Indexed: 06/11/2023]
Abstract
BACKGROUND The consumption of natural antioxidants is increasing due to the demand and tendency to natural foods. Punica granatum L. [Punicaceae] is a fruit with various bioactive ingredients. The effectiveness of this plant has been proved against various disorders such as hyperglycemia, hyperlipidemia, blood coagulation, infections, cancer, and dentistry. Among them, there are numerous researches on antimicrobial and antioxidant properties. Subsequently, the present study aimed to compile a review of those properties to outline this herb as a possible natural antioxidant and preservative. METHODS Synchronically, keywords "Punica granatum" with antimicrobial, or antibacterial, antifungal, antiviral, antioxidant and radical scavenging were searched through "Scopus" database up to 31st September 2019. Papers focusing on agriculture, genetics, chemistry, and environmental sciences were excluded, and also related papers were collected. RESULTS Among 201 papers focusing on related activities, 111 papers have dealt with antioxidant activities focusing based on DPPH assay, 59 with antibacterial, on both gram+ and gram- bacteria, 24 with antifungal effects, mostly on Aspergillus niger and Candida albicans, and 7 papers with antiviral activities. There were about 50 papers focusing on in-vivo antioxidant activities of this plant. CONCLUSION Taken together, botanical parts of P. granatum have possessed notable radical scavenging and antimicrobial activities that, with these properties, this plant can be introduced as a natural, safe source of preservative and antioxidant. Accordingly, P. granatum can be applied as excipient with the aforementioned properties in the pharmaceutical and food industries.
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Affiliation(s)
- Atefeh Jalali
- Department of Phytopharmaceuticals (Traditional Pharmacy), School of Pharmacy, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Mohammadreza Kiafar
- Department of Phytopharmaceuticals (Traditional Pharmacy), School of Pharmacy, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Masih Seddigh
- Epilepsy Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Mohammad M Zarshenas
- Department of Phytopharmaceuticals (Traditional Pharmacy), School of Pharmacy, Shiraz University of Medical Sciences, Shiraz, Iran
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Potential Role of Plant Extracts and Phytochemicals Against Foodborne Pathogens. APPLIED SCIENCES-BASEL 2020. [DOI: 10.3390/app10134597] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Foodborne diseases are one of the major causes of morbidity and mortality, especially in low-income countries with poor sanitation and inadequate healthcare facilities. The foremost bacterial pathogens responsible for global outbreaks include Salmonella species, Campylobacter jejuni, Escherichia coli, Shigella sp., Vibrio, Listeria monocytogenes and Clostridium botulinum. Among the viral and parasitic pathogens, norovirus, hepatitis A virus, Giardia lamblia, Trichinella spiralis, Toxoplasma and Entamoeba histolytica are commonly associated with foodborne diseases. The toxins produced by Staphylococcus aureus, Bacillus cereus and Clostridium perfringens also cause these infections. The currently available therapies for these infections are associated with various limited efficacy, high cost and side-effects. There is an urgent need for effective alternative therapies for the prevention and treatment of foodborne diseases. Several plant extracts and phytochemicals were found to be highly effective to control the growth of these pathogens causing foodborne infections in in vitro systems. The present review attempts to provide comprehensive scientific information on major foodborne pathogens and the potential role of phytochemicals in the prevention and treatment of these infections. Further detailed studies are necessary to evaluate the activities of these extracts and phytochemicals along with their mechanism of action using in vivo models.
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12
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New Delhi metallo-β-lactamase-1 inhibitors for combating antibiotic drug resistance: recent developments. Med Chem Res 2020. [DOI: 10.1007/s00044-020-02580-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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Metallo-β-Lactamase Inhibitors Inspired on Snapshots from the Catalytic Mechanism. Biomolecules 2020; 10:biom10060854. [PMID: 32503337 PMCID: PMC7356002 DOI: 10.3390/biom10060854] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2020] [Revised: 05/31/2020] [Accepted: 06/01/2020] [Indexed: 02/06/2023] Open
Abstract
β-Lactam antibiotics are the most widely prescribed antibacterial drugs due to their low toxicity and broad spectrum. Their action is counteracted by different resistance mechanisms developed by bacteria. Among them, the most common strategy is the expression of β-lactamases, enzymes that hydrolyze the amide bond present in all β-lactam compounds. There are several inhibitors against serine-β-lactamases (SBLs). Metallo-β-lactamases (MBLs) are Zn(II)-dependent enzymes able to hydrolyze most β-lactam antibiotics, and no clinically useful inhibitors against them have yet been approved. Despite their large structural diversity, MBLs have a common catalytic mechanism with similar reaction species. Here, we describe a number of MBL inhibitors that mimic different species formed during the hydrolysis process: substrate, transition state, intermediate, or product. Recent advances in the development of boron-based and thiol-based inhibitors are discussed in the light of the mechanism of MBLs. We also discuss the use of chelators as a possible strategy, since Zn(II) ions are essential for substrate binding and catalysis.
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Trabelsi A, El Kaibi MA, Abbassi A, Horchani A, Chekir-Ghedira L, Ghedira K. Phytochemical Study and Antibacterial and Antibiotic Modulation Activity of Punica granatum (Pomegranate) Leaves. SCIENTIFICA 2020; 2020:8271203. [PMID: 32318311 PMCID: PMC7150692 DOI: 10.1155/2020/8271203] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/20/2019] [Accepted: 02/29/2020] [Indexed: 06/11/2023]
Abstract
This study aimed to determine phytochemical contents, antibacterial properties, and antibiotic modulating potential of Punica granatum leaf extracts: hexane, chloroform, ethyl acetate, ethanol, and aqueous extracts as well as an extract enriched with total oligomer flavonoids (TOFs). The TOF extract contained the highest value of phenols and flavonoids. Rutin, luteolin, gallic acid, and ellagic acid were determined by HPLC analysis of this extract. The antibacterial activity was assayed by the disc diffusion method and microdilution method against Staphylococcus aureus and Escherichia coli standard ATCC strains and clinical isolates resistant strains. The TOF extract was the most active against all tested strains. The checkerboard method was used for the determination of synergy between two antibiotics (amoxicillin and cefotaxime) and P. granatum leaf extracts. The best synergistic interaction was found with TOF extract combined with amoxicillin for penicillin-resistant E. coli and penicillin-resistant S. aureus. These results can be assigned to tannins, flavonoids, and phenolic acids found in P. granatum leaf extracts. Pomegranate leaf extracts or active compounds isolated from these extracts could be used to fight the emergence and spread of resistant bacterial strains.
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Affiliation(s)
- Amine Trabelsi
- Pharmacognosy Laboratory, Faculty of Pharmacy, University of Monastir, Avicenna Street, Monastir 5000, Tunisia
- Research Unit of Bioactive and Natural Substances and Biotechnology UR17 ES49, Faculty of Dental Medicine, University of Monastir, Avicenna Street, Monastir 5000, Tunisia
| | - Mohamed Amine El Kaibi
- Drug Development Laboratory (LR12ES09), Unit of Pharmacology, Faculty of Pharmacy, University of Monastir, Avicenna Street, Monastir 5000, Tunisia
| | - Aïmen Abbassi
- Research Unit of Bioactive and Natural Substances and Biotechnology UR17 ES49, Faculty of Dental Medicine, University of Monastir, Avicenna Street, Monastir 5000, Tunisia
| | - Amira Horchani
- Pharmacognosy Laboratory, Faculty of Pharmacy, University of Monastir, Avicenna Street, Monastir 5000, Tunisia
- Research Unit of Bioactive and Natural Substances and Biotechnology UR17 ES49, Faculty of Dental Medicine, University of Monastir, Avicenna Street, Monastir 5000, Tunisia
| | - Leila Chekir-Ghedira
- Research Unit of Bioactive and Natural Substances and Biotechnology UR17 ES49, Faculty of Dental Medicine, University of Monastir, Avicenna Street, Monastir 5000, Tunisia
| | - Kamel Ghedira
- Pharmacognosy Laboratory, Faculty of Pharmacy, University of Monastir, Avicenna Street, Monastir 5000, Tunisia
- Research Unit of Bioactive and Natural Substances and Biotechnology UR17 ES49, Faculty of Dental Medicine, University of Monastir, Avicenna Street, Monastir 5000, Tunisia
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Wei S, Yang Y, Tian W, Liu M, Yin S, Li J. Synergistic Activity of Fluoroquinolones Combining with Artesunate Against Multidrug-Resistant Escherichia coli. Microb Drug Resist 2019; 26:81-88. [PMID: 31738637 PMCID: PMC6978754 DOI: 10.1089/mdr.2018.0463] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023] Open
Abstract
Multidrug resistance (MDR) is an increasing public health concern worldwide. Artesunate (ART) has been reported to be significantly effective in enhancing the effectiveness of various β-lactam antibiotics against MDR Escherichia coli via inhibiting the efflux pump genes. Apart from β-lactam antibiotics, there is no report regarding the potential synergistic effects of ART combining with fluoroquinolones (FQs). In this study, we investigated whether ART can enhance the antibacterial effects of FQs in vitro. The antibacterial activity of ART and antibiotics against 13 animal-derived E. coli clinical isolates was assessed for screening MDR strains. Then the synergistic activity of FQs with ART against MDR E. coli isolates was evaluated. Daunorubicin (DNR) accumulation within E. coli and messenger RNA (mRNA) expressions of acrA, acrB, tolC, and qnr genes were investigated. The results showed that ART did not show significant antimicrobial activity. However, a dramatically synergistic activity of ART combining with FQs was obsessed with (ΣFIC) = 0.12-0.33. ART increased the DNR accumulation and reduced acrAB-tolC mRNA expression, but enhanced the mRNA expression of qnrS and qnrB within MDR E. coli isolates. These findings suggest that ART can potentiate FQs activity which may be associated with drug accumulation by inhibiting the expression of acrAB-tolC.
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Affiliation(s)
- SiMin Wei
- Department of Clinical Veterinary Medicine, School of Veterinary Medicine, Yangzhou University, Yangzhou, P.R. China.,Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, P.R. China
| | - YueFei Yang
- Department of Clinical Veterinary Medicine, School of Veterinary Medicine, Yangzhou University, Yangzhou, P.R. China.,Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, P.R. China
| | - Wei Tian
- Department of Clinical Veterinary Medicine, School of Veterinary Medicine, Yangzhou University, Yangzhou, P.R. China.,Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, P.R. China
| | - MingJiang Liu
- Department of Clinical Veterinary Medicine, School of Veterinary Medicine, Yangzhou University, Yangzhou, P.R. China.,Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, P.R. China
| | - ShaoJie Yin
- Department of Clinical Veterinary Medicine, School of Veterinary Medicine, Yangzhou University, Yangzhou, P.R. China.,Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, P.R. China
| | - JinGui Li
- Department of Clinical Veterinary Medicine, School of Veterinary Medicine, Yangzhou University, Yangzhou, P.R. China.,Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, P.R. China
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Insight into the catalytic hydrolysis mechanism of New Delhi metallo-β-lactamase to aztreonam by molecular modeling. J Mol Liq 2019. [DOI: 10.1016/j.molliq.2019.03.006] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Chandar B, Bhattacharya D. Role of Natural Product in Modulation of Drug Transporters and New Delhi Metallo-β Lactamases. Curr Top Med Chem 2019; 19:874-885. [PMID: 30987566 DOI: 10.2174/1871529x19666190415110724] [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: 02/17/2019] [Revised: 03/20/2019] [Accepted: 04/05/2019] [Indexed: 11/22/2022]
Abstract
A rapid growth in drug resistance has brought options for treating antimicrobial resistance to a halt. Bacteria have evolved to accumulate a multitude of genes that encode resistance for a single drug within a single cell. Alternations of drug transporters are one of the causes for the development of resistance in drug interactions. Conversely, the production of enzymes also inactivates most antibiotics. The discovery of newer classes of antibiotics and drugs from natural products is urgently needed. Alternative medicines play an integral role in countries across the globe but many require validation for treatment strategies. It is essential to explore this chemical diversity in order to find novel drugs with specific activities which can be used as alternative drug targets. This review describes the interaction of drugs with resistant pathogens with a special focus on natural product-derived efflux pump and carbapenemase inhibitors.
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Affiliation(s)
- Brinda Chandar
- Department of Chemistry and Biochemistry, University of Oklahoma, Norman, Oklahoma, United States
| | - Debdutta Bhattacharya
- ICMRRegional Medical Research Centre (Dept. of Health Research, Govt. of India), Chandrasekharpur, Bhubaneswar, India
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NDM Metallo-β-Lactamases and Their Bacterial Producers in Health Care Settings. Clin Microbiol Rev 2019; 32:32/2/e00115-18. [PMID: 30700432 DOI: 10.1128/cmr.00115-18] [Citation(s) in RCA: 357] [Impact Index Per Article: 71.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
New Delhi metallo-β-lactamase (NDM) is a metallo-β-lactamase able to hydrolyze almost all β-lactams. Twenty-four NDM variants have been identified in >60 species of 11 bacterial families, and several variants have enhanced carbapenemase activity. Klebsiella pneumoniae and Escherichia coli are the predominant carriers of bla NDM, with certain sequence types (STs) (for K. pneumoniae, ST11, ST14, ST15, or ST147; for E. coli, ST167, ST410, or ST617) being the most prevalent. NDM-positive strains have been identified worldwide, with the highest prevalence in the Indian subcontinent, the Middle East, and the Balkans. Most bla NDM-carrying plasmids belong to limited replicon types (IncX3, IncFII, or IncC). Commonly used phenotypic tests cannot specifically identify NDM. Lateral flow immunoassays specifically detect NDM, and molecular approaches remain the reference methods for detecting bla NDM Polymyxins combined with other agents remain the mainstream options of antimicrobial treatment. Compounds able to inhibit NDM have been found, but none have been approved for clinical use. Outbreaks caused by NDM-positive strains have been reported worldwide, attributable to sources such as contaminated devices. Evidence-based guidelines on prevention and control of carbapenem-resistant Gram-negative bacteria are available, although none are specific for NDM-positive strains. NDM will remain a severe challenge in health care settings, and more studies on appropriate countermeasures are required.
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Niu X, Wang X, Gao Y, Yu Y, Yang Y, Wang G, Sun L, Wang H. Insight into the inhibition mechanism and structure–activity relationship of 2,6-dipicolinic acid and its analogue to New Delhi metallo-β-lactamase-1. MOLECULAR SIMULATION 2018. [DOI: 10.1080/08927022.2018.1559311] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- Xiaodi Niu
- College of Food Science and Engineering, Jilin University, Changchun, People’s Republic of China
| | - Xiyan Wang
- College of Food Science and Engineering, Jilin University, Changchun, People’s Republic of China
| | - Yawen Gao
- College of Food Science and Engineering, Jilin University, Changchun, People’s Republic of China
| | - Yiding Yu
- College of Food Science and Engineering, Jilin University, Changchun, People’s Republic of China
| | - Yanan Yang
- College of Food Science and Engineering, Jilin University, Changchun, People’s Republic of China
| | - Guizhen Wang
- College of Food Science and Engineering, Jilin University, Changchun, People’s Republic of China
| | - Lin Sun
- College of Food Science and Engineering, Jilin University, Changchun, People’s Republic of China
| | - Hongsu Wang
- College of Food Science and Engineering, Jilin University, Changchun, People’s Republic of China
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Shin B, Park W. Zoonotic Diseases and Phytochemical Medicines for Microbial Infections in Veterinary Science: Current State and Future Perspective. Front Vet Sci 2018; 5:166. [PMID: 30140679 PMCID: PMC6095004 DOI: 10.3389/fvets.2018.00166] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2018] [Accepted: 07/02/2018] [Indexed: 12/14/2022] Open
Abstract
Diseases caused by bacterial infections in small-scale and industrial livestock are becoming serious global health concern in veterinary science. Zoonotic bacteria, including Staphylococcus, Campylobacter, and Bartonella species, that infect animals and humans cause various illnesses, such as fever, diarrhea, and related complications. Bacterial diseases in animals can be treated with various classes of antibiotics, including fluoroquinolones, beta-lactams, aminoglycosides, and macrolides. However, the overuse and misuse of antibiotics have led to drug resistance in infectious agents, e.g., methicillin-resistant Staphylococcus; this hampers the treatment of infections in livestock, and such problems are increasing worldwide. Dietary phytochemicals and herbal medicines are useful and viable alternatives to pharmaceuticals because they are economical, effective, non-resistance-forming, renewable, and environmentally friendly. They are small molecules with high structural diversity that cause selective stress to or stimulation of resident microbiota, consequently causing an abundance of such microorganisms; thus, they can be used in preventing various diseases, ranging from metabolic and inflammatory diseases to cancer. In addition, the antioxidant effects of phytochemicals prevent substantial losses in the livestock industry by increasing animal fertility and preventing diseases. Potentially effective plant extracts could be used in combination with antibiotics to decrease the required dose of antibiotics and increase their effectiveness. This strategy can help avoid the side effects of chemical antimicrobials and allow the effective use of phytochemicals for treating diseases. Furthermore, phytochemicals are considered as potential alternatives to antibiotics because of their economical, non-resistance-forming and environmentally friendly properties. Flavonoids such as resveratrol, epigallocatechin gallate, and phenols such as galangin, puerarin, and ursolic acid are proven to be effective as antimicrobial agents. This review provides invaluable information about the types of microbial infections in animals and the current knowledge on phytotherapeutic agents classified by their mode of actions. It also provides insights into potential strategies for effectively treating animal infections using phytochemicals.
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Affiliation(s)
| | - Woojun Park
- Laboratory of Molecular Environmental Microbiology, Department of Environmental Sciences and Ecological Engineering, Korea University, Seoul, South Korea
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Kwiatkowski P, Pruss A, Grygorcewicz B, Wojciuk B, Dołęgowska B, Giedrys-Kalemba S, Kochan E, Sienkiewicz M. Preliminary Study on the Antibacterial Activity of Essential Oils Alone and in Combination with Gentamicin Against Extended-Spectrum β-Lactamase-Producing and New Delhi Metallo-β-Lactamase-1-Producing Klebsiella pneumoniae Isolates. Microb Drug Resist 2018; 24:1368-1375. [PMID: 29708847 DOI: 10.1089/mdr.2018.0051] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
Abstract
AIM The aim of the study was to investigate possible synergistic effects between several selected, commercially available essential oils and gentamicin against extended-spectrum β-lactamase (ESBL)-producing and New Delhi metallo-β-lactamase-1 (NDM-1)-producing Klebsiella pneumoniae isolates. MATERIALS AND METHODS ESBLs production was confirmed by double-disk synergy test. Isolates positive for blaNDM-1 gene were found among the tested strains. K. pneumoniae ATCC® BAA-1705™ strain was used as a control. The checkerboard method was applied to assess the synergistic and additive action of nine essential oils: caraway, fennel, peppermint, geranium, basil, clove, thyme, clary sage, and lavender, respectively, in combination with gentamicin. RESULTS Our results indicated that peppermint oil combined with gentamicin showed synergistic activity against both control, ESBL-producing and NDM-1-producing isolates. Caraway essential oil demonstrated synergy with gentamicin toward ESBL-producing and additionally gentamicin-resistant strains. The additive effect was observed for gentamicin combined with thyme, fennel, basil, and clary sage. CONCLUSIONS Because of their synergistic activity with gentamicin, peppermint, and caraway oils in particular, can be considered as an alternative or an addition for the control of infections with limited therapeutic options due to multidrug resistance.
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Affiliation(s)
- Paweł Kwiatkowski
- 1 Department of Microbiology, Immunology, and Laboratory Medicine, Pomeranian Medical University in Szczecin , Szczecin, Poland
| | - Agata Pruss
- 1 Department of Microbiology, Immunology, and Laboratory Medicine, Pomeranian Medical University in Szczecin , Szczecin, Poland
| | - Bartłomiej Grygorcewicz
- 2 Department of Immunology, Microbiology and Physiological Chemistry, Faculty of Biotechnology and Animal Husbandry, West Pomeranian University of Technology , Szczecin, Poland
| | - Bartosz Wojciuk
- 1 Department of Microbiology, Immunology, and Laboratory Medicine, Pomeranian Medical University in Szczecin , Szczecin, Poland
| | - Barbara Dołęgowska
- 1 Department of Microbiology, Immunology, and Laboratory Medicine, Pomeranian Medical University in Szczecin , Szczecin, Poland
| | - Stefania Giedrys-Kalemba
- 1 Department of Microbiology, Immunology, and Laboratory Medicine, Pomeranian Medical University in Szczecin , Szczecin, Poland
| | - Ewa Kochan
- 3 Pharmaceutical Biotechnology Department, Medical University of Lodz , Lodz, Poland
| | - Monika Sienkiewicz
- 4 Department of Allergology and Respiratory Rehabilitation, 2nd Chair of Otolaryngology, Medical University of Lodz , Lodz, Poland
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Horie H, Chiba A, Wada S. Inhibitory effect of soy saponins on the activity of β-lactamases, including New Delhi metallo-β-lactamase 1. Journal of Food Science and Technology 2018; 55:1948-1952. [PMID: 29666548 DOI: 10.1007/s13197-018-3091-4] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Revised: 02/15/2018] [Accepted: 02/26/2018] [Indexed: 10/17/2022]
Abstract
β-Lactamase-producing bacteria encode enzymes that inactivate β-lactam antibiotics by catalyzing the hydrolysis of the β-lactam ring. Crude soy saponins were observed to have synergistic effects on the antimicrobial activity of β-lactam antibiotics against β-lactamase-producing Staphylococcus aureus strains. Furthermore, the activities of β-lactamases derived from Enterobacter cloacae, Escherichia coli, and S. aureus were decreased significantly in the presence of crude soy saponins. This inhibitory effect was also observed against the New Delhi metallo-β-lactamase 1 (NDM-1), an enzyme whose activity is not inhibited by the current β-lactamase inhibitors. The synergistic effect on the antimicrobial activity of β-lactam antibiotics by crude soy saponins was thought to result from the inhibition the β-lactamase activity. The components of crude soy saponins include several kinds of soyasaponins and soyasapogenols. It was revealed that soyasaponin V has the highest inhibitory activity against NDM-1. The combined use of soy saponins with β-lactam antibiotics is expected to serve as a new therapeutic modality, potentially enhancing the effectiveness of β-lactam antibiotics against infectious diseases caused by β-lactamase-producing bacteria, including those encoding NDM-1.
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Affiliation(s)
- Hitoshi Horie
- Department of Microbiology, School of Pharmaceutical Sciences, Ohu University, 31-1 Misumido, Tomita-machi, Koriyama, Fukushima 963-8611 Japan
| | - Asuka Chiba
- Department of Microbiology, School of Pharmaceutical Sciences, Ohu University, 31-1 Misumido, Tomita-machi, Koriyama, Fukushima 963-8611 Japan
| | - Shigeo Wada
- Department of Microbiology, School of Pharmaceutical Sciences, Ohu University, 31-1 Misumido, Tomita-machi, Koriyama, Fukushima 963-8611 Japan
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