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Jesmina ARS, Induja DK, Drissya T, Sruthi CR, Raghu KG, Nelson-Sathi S, Kumar BNSAD, Lankalapalli RS. In vitro antibacterial effects of combination of ciprofloxacin with compounds isolated from Streptomyces luteireticuli NIIST-D75. J Antibiot (Tokyo) 2023; 76:198-210. [PMID: 36781977 DOI: 10.1038/s41429-023-00600-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2022] [Revised: 01/11/2023] [Accepted: 01/31/2023] [Indexed: 02/15/2023]
Abstract
Three phenazines, 1-methoxyphenazine (1), methyl-6-methoxyphenazine-1-carboxylate (2), 1,6-dimethoxyphenazine (4), and a 2,3-dimethoxy benzamide (3) were isolated from the Streptomyces luteireticuli NIIST-D75, and the antibacterial effects of compounds 1-3, each in combination with ciprofloxacin, were investigated. The in vitro antibacterial activity was assessed by microdilution, checkerboard, and time-kill assay against Staphylococcus aureus, Escherichia coli, Pseudomonas aeruginosa, and Salmonella typhi. According to the checkerboard assay results, each combination of compounds 1, 2 and 3 with ciprofloxacin resulted in a significantly lower minimum inhibitory concentrations (MICs) of 0.02-1.37 µg ml-1, suggesting synergistic combinations by fractional inhibitory concentration index, and displayed bactericidal activity in time-kill kinetics within 48 h. SEM analysis was carried out to determine the changes in morphology in S. aureus and E. coli during treatment with individual combination of ciprofloxacin and compounds (1-3), which revealed drastic changes in the cells such as dent formation, biofilm disruption, cell bursting, and doughnut-like formation, change in surface morphology in S. aureus, and cell elongation, cell burst with ruptured cell, and change in surface morphology in E. coli. Hep G2 cell viability was not affected by the compounds (1-3) that were tested for cytotoxicity up to 250 µM.
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Affiliation(s)
- Abdul Rasheed Safiya Jesmina
- Agro-Processing and Technology Division, CSIR-National Institute for Interdisciplinary Science and Technology, Thiruvananthapuram, 695019, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - D K Induja
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
- Chemical Sciences and Technology Division, CSIR-National Institute for Interdisciplinary Science and Technology, Thiruvananthapuram, 695019, India
| | - Thankappan Drissya
- Agro-Processing and Technology Division, CSIR-National Institute for Interdisciplinary Science and Technology, Thiruvananthapuram, 695019, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Chakiniplackal Rajan Sruthi
- Agro-Processing and Technology Division, CSIR-National Institute for Interdisciplinary Science and Technology, Thiruvananthapuram, 695019, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Kozhiparambil Gopalan Raghu
- Agro-Processing and Technology Division, CSIR-National Institute for Interdisciplinary Science and Technology, Thiruvananthapuram, 695019, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Shijulal Nelson-Sathi
- Transdisciplinary Biology, Bioinformatics Laboratory, Rajiv Gandhi Centre for Biotechnology, Thiruvananthapuram, 695014, India
| | - Bhaskaran Nair Saraswathy Amma Dileep Kumar
- Agro-Processing and Technology Division, CSIR-National Institute for Interdisciplinary Science and Technology, Thiruvananthapuram, 695019, India.
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India.
| | - Ravi S Lankalapalli
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India.
- Chemical Sciences and Technology Division, CSIR-National Institute for Interdisciplinary Science and Technology, Thiruvananthapuram, 695019, India.
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Zhang Y, Zhang Y, Ma R, Sun W, Ji Z. Antibacterial Activity of Epigallocatechin Gallate (EGCG) against Shigella flexneri. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2023; 20:4676. [PMID: 36981585 PMCID: PMC10048926 DOI: 10.3390/ijerph20064676] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/19/2022] [Revised: 03/03/2023] [Accepted: 03/04/2023] [Indexed: 06/18/2023]
Abstract
Shigella flexneri (S. flexneri), a major intestinal pathogen, is a global public health concern. The biofilms formed by S. flexneri threaten environmental safety, since they could promote the danger of environmental contamination and strengthen the disease-causing properties of bacteria. Epigallocatechin gallate (EGCG) is an important catechin in tea, which has a high antibacterial activity. However, its antibacterial mechanism is still unclear. This research aims to quantify the antibacterial function and investigate the possible mechanism of EGCG inhibition of S. flexneri. The minimum inhibitory concentration (MIC) of EGCG against planktonic S. flexneri in the investigation was measured to be 400 μg/mL. Besides, SDS-PAGE and field emission scanning electron microscopy showed that EGCG interfered with protein synthesis and changed bacteria morphology. Through controlling the expression of the mdoH gene, EGCG was found to be able to prevent an S. flexneri biofilm extracellular polysaccharide from forming, according to experiments utilizing the real-time PCR test. Additional research revealed that EGCG might stimulate the response of S. flexneri to oxidative stress and prevent bacterial growth. These findings suggest that EGCG, a natural compound, may play a substantial role in S. flexneri growth inhibition.
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Affiliation(s)
- Yini Zhang
- School of Geography and Tourism, Shaanxi Normal University, Xi’an 710119, China
- International Joint Research Centre of Shaanxi Province for Pollutants Exposure and Eco-Environmental Health, Xi’an 710119, China
| | - Yeyue Zhang
- School of Geography and Tourism, Shaanxi Normal University, Xi’an 710119, China
- International Joint Research Centre of Shaanxi Province for Pollutants Exposure and Eco-Environmental Health, Xi’an 710119, China
| | - Ruiqing Ma
- School of Geography and Tourism, Shaanxi Normal University, Xi’an 710119, China
- International Joint Research Centre of Shaanxi Province for Pollutants Exposure and Eco-Environmental Health, Xi’an 710119, China
| | - Wanting Sun
- School of Geography and Tourism, Shaanxi Normal University, Xi’an 710119, China
- International Joint Research Centre of Shaanxi Province for Pollutants Exposure and Eco-Environmental Health, Xi’an 710119, China
| | - Zheng Ji
- School of Geography and Tourism, Shaanxi Normal University, Xi’an 710119, China
- International Joint Research Centre of Shaanxi Province for Pollutants Exposure and Eco-Environmental Health, Xi’an 710119, China
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Fosfomycin and nitrofurantoin: classic antibiotics and perspectives. J Antibiot (Tokyo) 2021; 74:547-558. [PMID: 34244614 DOI: 10.1038/s41429-021-00444-z] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2020] [Revised: 05/31/2021] [Accepted: 06/01/2021] [Indexed: 02/06/2023]
Abstract
Antibiotics are essential molecules for the treatment and prophylaxis of many infectious diseases. However, drugs that combat microbial infections can become a human health threat due to their high and often indiscriminate consumption, considered one of the factors of antimicrobial resistance (AMR) emergence. The AMR crisis, the decrease in new drug development by the pharmaceutical industry, and reduced economic incentives for research have all reduced the options for treating infections, and new strategies are necessary, including the return of some traditional but "forgotten" antibiotics. However, prescriptions for these older drugs including nitrofurantoin and oral fosfomycin, have been based on the results of pioneer studies, and the limited knowledge generated 50-70 years ago may not be enough. To avoid harming patients and further increasing multidrug resistance, systematic evaluation is required, mainly for the drugs prescribed for community-acquired infections, such as urinary tract infections (UTI). Therefore, this review has the objective of reporting the use of two classic drugs from the nitrofuran and phosphonic acid classes for UTI control nowadays. Furthermore, we also explore new approaches used for these antibiotics, including new combination regimes for spectral amplification, and the prospects for reducing bacterial resistance in the fight against bacteria responsible for UTI.
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Morka KD, Wernecki M, Kędziora A, Książczyk M, Dudek B, Gerasymchuk Y, Lukowiak A, Bystroń J, Bugla-Płoskońska G. The Impact of Graphite Oxide Nanocomposites on the Antibacterial Activity of Serum. Int J Mol Sci 2021; 22:7386. [PMID: 34299005 PMCID: PMC8304721 DOI: 10.3390/ijms22147386] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2021] [Revised: 07/04/2021] [Accepted: 07/06/2021] [Indexed: 12/21/2022] Open
Abstract
Nanoparticles can interact with the complement system and modulate the inflammatory response. The effect of these interactions on the complement activity strongly depends on physicochemical properties of nanoparticles. The interactions of silver nanoparticles with serum proteins (particularly with the complement system components) have the potential to significantly affect the antibacterial activity of serum, with serious implications for human health. The aim of the study was to assess the influence of graphite oxide (GO) nanocomposites (GO, GO-PcZr(Lys)2-Ag, GO-Ag, GO-PcZr(Lys)2) on the antibacterial activity of normal human serum (NHS), serum activity against bacteria isolated from alveoli treated with nanocomposites, and nanocomposite sensitivity of bacteria exposed to serum in vitro (using normal human serum). Additionally, the in vivo cytotoxic effect of the GO compounds was determined with application of a Galleria mellonella larvae model. GO-PcZr(Lys)2, without IR irradiation enhance the antimicrobial efficacy of the human serum. IR irradiation enhances bactericidal activity of serum in the case of the GO-PcZr(Lys)2-Ag sample. Bacteria exposed to nanocomposites become more sensitive to the action of serum. Bacteria exposed to serum become more sensitive to the GO-Ag sample. None of the tested GO nanocomposites displayed a cytotoxicity towards larvae.
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Affiliation(s)
- Katarzyna Dorota Morka
- Department of Food Hygiene and Consumer Health Protection, Faculty of Veterinary Medicine, University of Environmental and Life Sciences, C. K. Norwida 31, 50-375 Wrocław, Poland;
| | - Maciej Wernecki
- Department of Microbiology, Faculty of Biological Sciences, University of Wroclaw, S. Przybyszewskiego 63/77, 51-148 Wroclaw, Poland; (M.W.); (A.K.); (M.K.); (B.D.)
| | - Anna Kędziora
- Department of Microbiology, Faculty of Biological Sciences, University of Wroclaw, S. Przybyszewskiego 63/77, 51-148 Wroclaw, Poland; (M.W.); (A.K.); (M.K.); (B.D.)
| | - Marta Książczyk
- Department of Microbiology, Faculty of Biological Sciences, University of Wroclaw, S. Przybyszewskiego 63/77, 51-148 Wroclaw, Poland; (M.W.); (A.K.); (M.K.); (B.D.)
| | - Bartłomiej Dudek
- Department of Microbiology, Faculty of Biological Sciences, University of Wroclaw, S. Przybyszewskiego 63/77, 51-148 Wroclaw, Poland; (M.W.); (A.K.); (M.K.); (B.D.)
| | - Yuriy Gerasymchuk
- Institute of Low Temperature and Structure Research, Polish Academy of Sciences, ul. Okolna 2, 50-422 Wrocław, Poland; (Y.G.); (A.L.)
| | - Anna Lukowiak
- Institute of Low Temperature and Structure Research, Polish Academy of Sciences, ul. Okolna 2, 50-422 Wrocław, Poland; (Y.G.); (A.L.)
| | - Jarosław Bystroń
- Department of Food Hygiene and Consumer Health Protection, Faculty of Veterinary Medicine, University of Environmental and Life Sciences, C. K. Norwida 31, 50-375 Wrocław, Poland;
| | - Gabriela Bugla-Płoskońska
- Department of Microbiology, Faculty of Biological Sciences, University of Wroclaw, S. Przybyszewskiego 63/77, 51-148 Wroclaw, Poland; (M.W.); (A.K.); (M.K.); (B.D.)
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Antonello RM, Principe L, Maraolo AE, Viaggi V, Pol R, Fabbiani M, Montagnani F, Lovecchio A, Luzzati R, Di Bella S. Fosfomycin as Partner Drug for Systemic Infection Management. A Systematic Review of Its Synergistic Properties from In Vitro and In Vivo Studies. Antibiotics (Basel) 2020; 9:antibiotics9080500. [PMID: 32785114 PMCID: PMC7460049 DOI: 10.3390/antibiotics9080500] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2020] [Revised: 08/01/2020] [Accepted: 08/03/2020] [Indexed: 12/31/2022] Open
Abstract
Fosfomycin is being increasingly prescribed for multidrug-resistant bacterial infections. In patients with systemic involvement, intravenous fosfomycin is usually administered as a partner drug, as part of an antibiotic regimen. Hence, the knowledge of fosfomycin pharmacodynamic interactions (synergistic, additive, indifferent and antagonistic effect) is fundamental for a proper clinical management of severe bacterial infections. We performed a systematic review to point out fosfomycin’s synergistic properties, when administered with other antibiotics, in order to help clinicians to maximize drug efficacy optimizing its use in clinical practice. Interactions were more frequently additive or indifferent (65.4%). Synergism accounted for 33.7% of total interactions, while antagonism occurred sporadically (0.9%). Clinically significant synergistic interactions were mostly distributed in combination with penicillins (51%), carbapenems (43%), chloramphenicol (39%) and cephalosporins (33%) in Enterobactaerales; with linezolid (74%), tetracyclines (72%) and daptomycin (56%) in Staphylococcus aureus; with chloramphenicol (53%), aminoglycosides (43%) and cephalosporins (36%) against Pseudomonas aeruginosa; with daptomycin (97%) in Enterococcus spp. and with sulbactam (75%) and penicillins (60%) and in Acinetobacter spp. fosfomycin-based antibiotic associations benefit from increase in the bactericidal effect and prevention of antimicrobial resistances. Taken together, the presence of synergistic interactions and the nearly total absence of antagonisms, make fosfomycin a good partner drug in clinical practice.
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Affiliation(s)
- Roberta Maria Antonello
- Clinical Department of Medical, Surgical and Health Sciences, Trieste University, 34127 Trieste, Italy; (R.M.A.); (A.L.); (R.L.)
| | | | - Alberto Enrico Maraolo
- First Division of Infectious Diseases, Cotugno Hospital, AORN dei Colli, 80131 Naples, Italy;
| | | | - Riccardo Pol
- Department of Infectious Diseases, Udine University, 33100 Udine, Italy;
| | - Massimiliano Fabbiani
- Department of Medical Sciences, Tropical and Infectious Diseases Unit, University Hospital of Siena, 53100 Siena, Italy; (M.F.); (F.M.)
| | - Francesca Montagnani
- Department of Medical Sciences, Tropical and Infectious Diseases Unit, University Hospital of Siena, 53100 Siena, Italy; (M.F.); (F.M.)
- Department of Medical Biotechnologies, University of Siena, 53100 Siena, Italy
| | - Antonio Lovecchio
- Clinical Department of Medical, Surgical and Health Sciences, Trieste University, 34127 Trieste, Italy; (R.M.A.); (A.L.); (R.L.)
| | - Roberto Luzzati
- Clinical Department of Medical, Surgical and Health Sciences, Trieste University, 34127 Trieste, Italy; (R.M.A.); (A.L.); (R.L.)
| | - Stefano Di Bella
- Clinical Department of Medical, Surgical and Health Sciences, Trieste University, 34127 Trieste, Italy; (R.M.A.); (A.L.); (R.L.)
- Correspondence:
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