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Ji W, Li B, Li N, Xing C. Design Strategy of Microneedle Systems for Skin Wound Healing: Based on the Structure of Tips and Therapeutic Methodologies. ACS APPLIED BIO MATERIALS 2024; 7:4254-4269. [PMID: 38863157 DOI: 10.1021/acsabm.4c00532] [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: 06/13/2024]
Abstract
The skin, being the largest organ of the human body, is susceptible to damage resulting in wounds that are vulnerable to pathogenic attacks and fail to provide effective protection for internal tissues. Therefore, it is crucial to expedite wound healing. In recent years, microneedles have garnered significant attention as an innovative drug delivery system owing to their noninvasive and painless administration, simplified application process, precise control over drug release, and versatile loading capabilities. Consequently, they hold immense potential for the treatment of skin wound. This review presents a comprehensive design strategy for the microneedle system in promoting skin wound healing. First, the process of skin wound healing and the characteristics of specific wounds are elucidated. The design strategies for microneedles are subsequently presented and classified based on their structural and therapeutic methodologies. Finally, a succinct recapitulation of the previously discussed points and a prospective analysis are provided.
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Affiliation(s)
- Wenchao Ji
- School of Materials Science and Engineering, Hebei University of Technology, Tianjin 300130, P. R. China
| | - Boying Li
- School of Chemical Engineering, Hebei University of Technology, Tianjin 300130, P. R. China
| | - Ning Li
- College of Pharmaceutical Sciences, Soochow University, Suzhou 215000, P. R. China
| | - Chengfen Xing
- School of Materials Science and Engineering, Hebei University of Technology, Tianjin 300130, P. R. China
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2
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Khan ZA, Wani MY, Ahmad A, Basha MT, Aly NA, Yakout AA. Multifunctional chitosan-cross linked- curcumin-tannic acid biocomposites disrupt quorum sensing and biofilm formation in pathogenic bacteria. Int J Biol Macromol 2024; 271:132719. [PMID: 38821810 DOI: 10.1016/j.ijbiomac.2024.132719] [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: 01/26/2024] [Revised: 05/21/2024] [Accepted: 05/27/2024] [Indexed: 06/02/2024]
Abstract
Natural products have a long history of success in treating bacterial infections, making them a promising source for novel antibacterial medications. Curcumin, an essential component of turmeric, has shown potential in treating bacterial infections and in this study, we covalently immobilized curcumin (Cur) onto chitosan (CS) using glutaraldehyde and tannic acid (TA), resulting in the fabrication of novel biocomposites with varying CS/Cur/TA ratios. Comprehensive characterization of these ternary biocomposites was conducted using FTIR, SEM, XPS, and XRD to assess their morphology, functional groups, and chemical structures. The inhibitory efficacy of these novel biocomposites (n = 4) against the growth and viability of Pseudomonas aeruginosa (ATCC27853) and Chromobacterium violaceum (ATCC12472) was evaluated and the most promising composite (C3) was investigated for its impact on quorum sensing (QS) and biofilm formation in these bacteria. Remarkably, this biocomposite significantly disrupted QS circuits and effectively curtailed biofilm formation in the tested pathogens without inducing appreciable toxicity. These findings underscore its potential for future in vivo studies, positioning it as a promising candidate for the development of biofilm disrupting antibacterial agents.
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Affiliation(s)
- Ziya Ahmad Khan
- Department of Chemistry, College of Science, University of Jeddah, 21589 Jeddah, Saudi Arabia.
| | - Mohmmad Younus Wani
- Department of Chemistry, College of Science, University of Jeddah, 21589 Jeddah, Saudi Arabia.
| | - Aijaz Ahmad
- Department of Clinical Microbiology and Infectious Diseases, School of Pathology, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa; Division of Pulmonary, Allergy, and Critical Care Medicine, Department of Medicine, University of Pittsburgh Medical Center, Pittsburgh, PA 15213, USA
| | - Maram T Basha
- Department of Chemistry, College of Science, University of Jeddah, 21589 Jeddah, Saudi Arabia
| | - Nada A Aly
- Department of Pharmacy Technology, Faculty of Technological Health Sciences, Borg El Arab Technological University, Egypt; Faculty of Pharmacy, Alexandria University, Alexandria, Egypt
| | - Amr A Yakout
- Department of Chemistry, College of Science, University of Jeddah, 21589 Jeddah, Saudi Arabia; Chemistry Department, Faculty of Science, Alexandria University, Alexandria, Egypt.
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3
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Paulino S, Petek S, Le Strat Y, Bourgougnon N, Le Blay G. Cultivable epiphytic bacteria of the Chlorophyta Ulva sp.: diversity, antibacterial, and biofilm-modulating activities. J Appl Microbiol 2024; 135:lxae099. [PMID: 38702839 DOI: 10.1093/jambio/lxae099] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2023] [Revised: 03/20/2024] [Accepted: 04/30/2024] [Indexed: 05/06/2024]
Abstract
AIMS Macroalgae harbor a rich epiphytic microbiota that plays a crucial role in algal morphogenesis and defense mechanisms. This study aims to isolate epiphytic cultivable microbiota from Ulva sp. surfaces. Various culture media were employed to evaluate a wide range of cultivable microbiota. Our objective was to assess the antibacterial and biofilm-modulating activities of supernatants from isolated bacteria. METHODS AND RESULTS Sixty-nine bacterial isolates from Ulva sp. were identified based on 16S rRNA gene sequencing. Their antibacterial activity and biofilm modulation potential were screened against three target marine bacteria: 45%, mostly affiliated with Gammaproteobacteria and mainly grown on diluted R2A medium (R2Ad), showed strong antibacterial activity, while 18% had a significant impact on biofilm modulation. Molecular network analysis was carried out on four bioactive bacterial supernatants, revealing new molecules potentially responsible for their activities. CONCLUSION R2Ad offered the greatest diversity and proportion of active isolates. The molecular network approach holds promise for both identifying bacterial isolates based on their molecular production and characterizing antibacterial and biofilm-modulating activities.
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Affiliation(s)
- Sauvann Paulino
- Université Bretagne Sud, Laboratoire de Biotechnologie et Chimie Marines, EMR CNRS 6076, Vannes, France
- Univ Brest, CNRS, IRD, Ifremer, LEMAR, IUEM, F-29280 Plouzané, France
| | - Sylvain Petek
- Univ Brest, CNRS, IRD, Ifremer, LEMAR, IUEM, F-29280 Plouzané, France
| | - Yoran Le Strat
- Univ Brest, CNRS, IRD, Ifremer, LEMAR, IUEM, F-29280 Plouzané, France
| | - Nathalie Bourgougnon
- Université Bretagne Sud, Laboratoire de Biotechnologie et Chimie Marines, EMR CNRS 6076, Vannes, France
| | - Gwenaelle Le Blay
- Univ Brest, CNRS, IRD, Ifremer, LEMAR, IUEM, F-29280 Plouzané, France
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Akbarian M, Chen SH, Kianpour M, Farjadian F, Tayebi L, Uversky VN. A review on biofilms and the currently available antibiofilm approaches: Matrix-destabilizing hydrolases and anti-bacterial peptides as promising candidates for the food industries. Int J Biol Macromol 2022; 219:1163-1179. [PMID: 36058386 DOI: 10.1016/j.ijbiomac.2022.08.192] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2022] [Revised: 08/12/2022] [Accepted: 08/30/2022] [Indexed: 11/17/2022]
Abstract
Biofilms are communities of microorganisms that can be harmful and/or beneficial, depending on location and cell content. Since in most cases (such as the formation of biofilms in laboratory/medicinal equipment, water pipes, high humidity-placed structures, and the food packaging machinery) these bacterial and fungal communities are troublesome, researchers in various fields are trying to find a promising strategy to destroy or slow down their formation. In general, anti-biofilm strategies are divided into the plant-based and non-plant categories, with the latter including nanoparticles, bacteriophages, enzymes, surfactants, active peptides and free fatty acids. In most cases, using a single strategy will not be sufficient to eliminate biofilm, and consequently, two or more strategies will inevitably be used to deal with this unwanted phenomenon. According to the analysis of potential biofilm inhibition strategies, the best option for the food industry would be the use of hydrolase enzymes and peptides extracted from natural sources. This article represents a systematic review of the previous efforts made in these directions.
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Affiliation(s)
- Mohsen Akbarian
- Department of Chemistry, National Cheng Kung University, Tainan 701, Taiwan.
| | - Shu-Hui Chen
- Department of Chemistry, National Cheng Kung University, Tainan 701, Taiwan
| | - Maryam Kianpour
- Institute of Biomedical Sciences, National Sun Yat-sen University, Kaohsiung, Taiwan
| | - Fatemeh Farjadian
- Pharmaceutical Sciences Research Center, School of Pharmacy, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Lobat Tayebi
- School of Dentistry, Marquette University, Milwaukee, WI, USA
| | - Vladimir N Uversky
- Department of Molecular Medicine and Health Byrd Alzheimer's Institute, Morsani College of Medicine, University of South Florida, Tampa, FL, USA; Laboratory of New Methods in Biology, Institute for Biological Instrumentation of the Russian Academy of Sciences, Federal Research Center "Pushchino Scientific Center for Biological Research of the Russian Academy of Sciences", Pushchino, Moscow region, Russia.
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Nikolaev YA, Tikhonova EN, El’-Registan GI, Zhurina MV, Plakunov VK, Demkina EV, Zaiko EV, Bataeva DS, Nasyrov NA, Yushina YK. Comparative Investigation of the Composition and Structure of Microbial Biofilms Retrieved at Meat-Processing Plants Using Different Raw Materials. Microbiology (Reading) 2022. [DOI: 10.1134/s0026261722601403] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
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6
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Maksimova Y, Bykova Y, Maksimov A. Functionalization of Multi-Walled Carbon Nanotubes Changes Their Antibiofilm and Probiofilm Effects on Environmental Bacteria. Microorganisms 2022; 10:microorganisms10081627. [PMID: 36014045 PMCID: PMC9412586 DOI: 10.3390/microorganisms10081627] [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: 06/14/2022] [Revised: 08/08/2022] [Accepted: 08/10/2022] [Indexed: 11/16/2022] Open
Abstract
Releasing multi-walled carbon nanotubes (MWCNTs) into ecosystems affects the biofilm formation and metabolic activity of bacteria in aquatic and soil environments. Pristine (pMWCNTs), oleophilic (oMWCNTs), hydrophilic (hMWCNTs), and carboxylated (cMWCNTs) carbon nanotubes were used to investigate their effects on bacterial biofilm. A pronounced probiofilm effect of modified MWCNTs was observed on the Gram-negative bacteria of Pseudomonas fluorescens C2, Acinetobacter guillouiae 11 h, and Alcaligenes faecalis 2. None of the studied nanomaterials resulted in the complete inhibition of biofilm formation. The complete eradication of biofilms exposed to MWCNTs was not observed. The functionalization of carbon nanotubes was shown to change their probiofilm and antibiofilm effects. Gram-negative bacteria were the most susceptible to destruction, and among the modified MWCNTs, oMWCNTs had the greatest effect on biofilm destruction. The number of living cells in the biofilms was assessed by the reduction of XTT, and metabolic activity was assessed by the reduction of resazurin to fluorescent resorufin. The biofilms formed in the presence of MWCNTs reduced tetrozolium to formazan more actively than the control biofilms. When mature biofilms were exposed to MWCNTs, dehydrogenase activity decreased in Rhodococcus erythropolis 4-1, A. guillouiae 11 h, and A. faecalis 2 in the presence of pMWCNTs and hMWCNTs, as well as in A. guillouiae 11 h exposed to cMWCNTs. When mature biofilms were exposed to pMWCNTs, hMWCNTs, and cMWCNTs, the metabolism of cells decreased in most strains, and oMWCNTs did not have a pronounced inhibitory effect. The antibiofilm and probiofilm effects of MWCNTs were strain-dependent.
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Affiliation(s)
- Yuliya Maksimova
- Laboratory of Molecular Biotechnology, Institute of Ecology and Genetics of Microorganisms UB RAS, Perm 614081, Russia
- Department of Microbiology and Immunology, Perm State University, Perm 614990, Russia
- Correspondence:
| | - Yana Bykova
- Laboratory of Molecular Biotechnology, Institute of Ecology and Genetics of Microorganisms UB RAS, Perm 614081, Russia
| | - Aleksandr Maksimov
- Laboratory of Molecular Biotechnology, Institute of Ecology and Genetics of Microorganisms UB RAS, Perm 614081, Russia
- Department of Microbiology and Immunology, Perm State University, Perm 614990, Russia
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7
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Maksimova YG, Bykova YE, Zorina AS, Nikulin SM, Maksimov AY. Effect of Pristine Multi-Walled Carbon Nanotubes on Formation and Degradation of Bacterial Biofilms. Microbiology (Reading) 2022. [DOI: 10.1134/s0026261722100861] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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8
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Aydin S, Arabacı DN, Shahi A, Fakhri H, Ovez S. Enhanced removal of antibiotics using Eichhornia crassipes root biomass in an aerobic hollow-fiber membrane bioreactor. BIOFOULING 2022; 38:223-234. [PMID: 35470721 DOI: 10.1080/08927014.2022.2045484] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/17/2021] [Revised: 02/16/2022] [Accepted: 02/16/2022] [Indexed: 06/14/2023]
Abstract
The impact of water hyacinth (Eichhornia crassipes) root biomass (WHRB) on pharmaceutical wastewater treatment with an aerobic hollow-fiber membrane bioreactor (HF-MBR) was investigated. The performance of the bioreactor was assessed in terms of COD (Chemical Oxygen Demand) and antibiotic removal and membrane biofouling rate. For deeper insight, microbial communities in sludge and biofilm layers were analyzed through Illumina sequencing. The addition of WHRB into the HF-MBR increased the COD (by 6%), as well as antibiotics and transformation products removal efficiency. Removal efficiencies of 97%, 98% and 84% were obtained for removal of erythromycin, sulfamethoxazole, and tetracycline. Furthermore, WHRB modified the biodegradation network, increased the relative abundances of Chloroflexi, Proteobacteria and Nitrospirae and decreased Firmicutes, compared with the control with antibiotics. The addition of WHRB also enriched Actinobacteria and Bacteroidetes while decreasing the phylla Chloroflexi and Saccharibacteria in the biofilm.
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Affiliation(s)
- Sevcan Aydin
- Department of Biology, Biotechnology Section, Istanbul University, Istanbul, Turkey
| | - Duygu Nur Arabacı
- Department of Genetics and Bioengineering, Nişantaşı University, Istanbul, Turkey
| | - Aiyoub Shahi
- Institute of Environment, University of Tabriz, Tabriz, Iran
| | - Hadi Fakhri
- Department of Environmental Engineering, Istanbul Technical University, Istanbul, Turkey
| | - Suleyman Ovez
- Department of Environmental Engineering, Istanbul Technical University, Istanbul, Turkey
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Hazarika DJ, Kakoti M, Kalita R, Gautom# T, Goswami G, Barooah M, Boro RC. Prodigiosin from an Endofungal Bacterium Serratia marcescens D1 Inhibits Biofilm Formation in Gram-Positive Bacteria. Microbiology (Reading) 2021. [DOI: 10.1134/s0026261722010052] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023] Open
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10
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Gannesen A, Schelkunov M, Geras'kina O, Makarova N, Sukhacheva M, Danilova N, Ovcharova M, Mart'yanov S, Pankratov T, Muzychenko D, Zhurina M, Feofanov A, Botchkova E, Plakunov V. Epinephrine affects gene expression levels and has a complex effect on biofilm formation in M icrococcus luteus strain C01 isolated from human skin. Biofilm 2021; 3:100058. [PMID: 34729469 PMCID: PMC8543384 DOI: 10.1016/j.bioflm.2021.100058] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2021] [Revised: 10/05/2021] [Accepted: 10/08/2021] [Indexed: 11/19/2022] Open
Abstract
In this study, the effect of epinephrine on the biofilm formation of Micrococcus luteus C01 isolated from human skin was investigated in depth for the first time. This hormone has a complex effect on biofilms in various systems. In a system with polytetrafluoroethylene (PTFE) cubes, treatment with epinephrine at a physiological concentration of 4.9 × 10-9 M increased the total amount of 72-h biofilm biomass stained with crystal violet and increased the metabolic activity of biofilms, but at higher and lower concentrations, the treatment had no significant effect. On glass fiber filters, treatment with the hormone decreased the number of colony forming units (CFUs) and changed the aggregation but did not affect the metabolic activity of biofilm cells. In glass bottom plates examined by confocal microscopy, epinephrine notably inhibited the growth of biofilms. RNA-seq analysis and RT-PCR demonstrated reproducible upregulation of genes encoding Fe-S cluster assembly factors and cyanide detoxification sulfurtransferase, whereas genes encoding the co-chaperone GroES, the LysE superfamily of lysine exporters, short-chain alcohol dehydrogenase and the potential c-di-GMP phosphotransferase were downregulated. Our results suggest that epinephrine may stimulate matrix synthesis in M. luteus biofilms, thereby increasing the activity of NAD(H) oxidoreductases. Potential c-di-GMP pathway proteins are essential in these processes.
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Affiliation(s)
- A.V. Gannesen
- Federal Research Center “Fundamentals of Biotechnology” of the Russian Academy of Sciences, Moscow, Russia
- Corresponding author.
| | - M.I. Schelkunov
- Skolkovo Institute of Science and Technology, Moscow, Russia
- Institute for Information Transmission Problems, Moscow, Russia
| | - O.V. Geras'kina
- Faculty of Biology, Lomonosov Moscow State University, Moscow, Russia
| | - N.E. Makarova
- Skolkovo Institute of Science and Technology, Moscow, Russia
| | - M.V. Sukhacheva
- Federal Research Center “Fundamentals of Biotechnology” of the Russian Academy of Sciences, Moscow, Russia
| | - N.D. Danilova
- Federal Research Center “Fundamentals of Biotechnology” of the Russian Academy of Sciences, Moscow, Russia
| | - M.A. Ovcharova
- Federal Research Center “Fundamentals of Biotechnology” of the Russian Academy of Sciences, Moscow, Russia
| | - S.V. Mart'yanov
- Federal Research Center “Fundamentals of Biotechnology” of the Russian Academy of Sciences, Moscow, Russia
| | - T.A. Pankratov
- Federal Research Center “Fundamentals of Biotechnology” of the Russian Academy of Sciences, Moscow, Russia
| | - D.S. Muzychenko
- Federal Research Center “Fundamentals of Biotechnology” of the Russian Academy of Sciences, Moscow, Russia
| | - M.V. Zhurina
- Federal Research Center “Fundamentals of Biotechnology” of the Russian Academy of Sciences, Moscow, Russia
| | - A.V. Feofanov
- Faculty of Biology, Lomonosov Moscow State University, Moscow, Russia
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Moscow, Russia
| | - E.A. Botchkova
- Federal Research Center “Fundamentals of Biotechnology” of the Russian Academy of Sciences, Moscow, Russia
| | - V.K. Plakunov
- Federal Research Center “Fundamentals of Biotechnology” of the Russian Academy of Sciences, Moscow, Russia
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Fakhri H, Arabacı DN, Ünlü İD, Yangin-Gomec C, Ovez S, Aydin S. Addition of Trichocladium canadense to an anaerobic membrane bioreactor: evaluation of the microbial composition and reactor performance. BIOFOULING 2021; 37:711-723. [PMID: 34378470 DOI: 10.1080/08927014.2021.1949002] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/28/2021] [Revised: 06/13/2021] [Accepted: 06/22/2021] [Indexed: 06/13/2023]
Abstract
Membrane bioreactors are powerful systems for wastewater treatment and the removal of toxic compounds. However, membrane biofouling stands in the way of their widespread usage. In this study, the saprophytic fungus Trichocladium canadense was used as the bioaugmentor in an anaerobic membrane bioreactor (AnMBR) and its impact on membrane biofouling, biogas production, the microbial communities of the reactor and removal of the common antibiotics erythromycin (ERY), sulfamethoxazole (SMX) and tetracycline (TET) from synthetic wastewater was investigated. The results indicated that through bioaugmentation with 20% T. canadense, membrane biofouling was slowed by 25%, the chemical oxygen demand removal increased by 16% and a higher efficiency removal of ERY and SMX was achieved. The presence of T. canadense significantly increased the abundance and diversity of the biofilm archaeal community and the bacterial phylum Firmicutes, a known bio-foulant.
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Affiliation(s)
- Hadi Fakhri
- Department of Environmental Engineering, Istanbul Technical University, Maslak, Istanbul, Turkey
| | - Duygu Nur Arabacı
- Department of Genetics and Bioengineering, Nişantaşı University, Maslak, Istanbul, Turkey
| | - İlayda Dilara Ünlü
- Department of Bioengineering, Yildiz Technical University, Esenler, Istanbul, Turkey
| | - Cigdem Yangin-Gomec
- Department of Environmental Engineering, Istanbul Technical University, Maslak, Istanbul, Turkey
| | - Suleyman Ovez
- Department of Environmental Engineering, Istanbul Technical University, Maslak, Istanbul, Turkey
| | - Sevcan Aydin
- Division of Biotechnology, Biology Department, Faculty of Science, Istanbul University, Vezneciler, Istanbul, Turkey
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Sharipova MR, Mardanova AM, Rudakova NL, Pudova DS. Bistability and Formation of the Biofilm Matrix as Adaptive Mechanisms during the Stationary Phase of Bacillus subtilis. Microbiology (Reading) 2021. [DOI: 10.1134/s002626172006017x] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
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13
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Clean-in-place disinfection of dual-species biofilm (Listeria and Pseudomonas) by a green antibacterial product made from citrus extract. Food Control 2020. [DOI: 10.1016/j.foodcont.2020.107422] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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14
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Multiple Drug-Induced Stress Responses Inhibit Formation of Escherichia coli Biofilms. Appl Environ Microbiol 2020; 86:AEM.01113-20. [PMID: 32826218 PMCID: PMC7580552 DOI: 10.1128/aem.01113-20] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2020] [Accepted: 08/08/2020] [Indexed: 02/07/2023] Open
Abstract
The prevention of bacterial biofilm formation is one of the major current challenges in microbiology. Here, by systematically screening a large number of approved drugs for their ability to suppress biofilm formation by Escherichia coli, we identified a number of prospective antibiofilm compounds. We further demonstrated different mechanisms of action for individual compounds, from induction of replicative stress to disbalance of cation homeostasis to inhibition of bacterial attachment to the surface. Our work demonstrates the potential of drug repurposing for the prevention of bacterial biofilm formation and suggests that also for other bacteria, the activity spectrum of antibiofilm compounds is likely to be broad. In most ecosystems, bacteria exist primarily as structured surface-associated biofilms that can be highly tolerant to antibiotics and thus represent an important health issue. Here, we explored drug repurposing as a strategy to identify new antibiofilm compounds, screening over 1,000 compounds from the Prestwick Chemical Library of approved drugs for specific activities that prevent biofilm formation by Escherichia coli. Most growth-inhibiting compounds, which include known antibacterial but also antiviral and other drugs, also reduced biofilm formation. However, we also identified several drugs that were biofilm inhibitory at doses where only a weak effect or no effect on planktonic growth could be observed. The activities of the most specific antibiofilm compounds were further characterized using gene expression analysis, proteomics, and microscopy. We observed that most of these drugs acted by repressing genes responsible for the production of curli, a major component of the E. coli biofilm matrix. This repression apparently occurred through the induction of several different stress responses, including DNA and cell wall damage, and homeostasis of divalent cations, demonstrating that biofilm formation can be inhibited through a variety of molecular mechanisms. One tested drug, tyloxapol, did not affect curli expression or cell growth but instead inhibited biofilm formation by suppressing bacterial attachment to the surface. IMPORTANCE The prevention of bacterial biofilm formation is one of the major current challenges in microbiology. Here, by systematically screening a large number of approved drugs for their ability to suppress biofilm formation by Escherichia coli, we identified a number of prospective antibiofilm compounds. We further demonstrated different mechanisms of action for individual compounds, from induction of replicative stress to disbalance of cation homeostasis to inhibition of bacterial attachment to the surface. Our work demonstrates the potential of drug repurposing for the prevention of bacterial biofilm formation and suggests that also for other bacteria, the activity spectrum of antibiofilm compounds is likely to be broad.
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15
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Ignatova NI, Alexandrova NA, Zaslavskaya MI, Abramycheva DV. [Evaluation of the influence of culturing on the intensity of biofilm formation by Klebsiella pneumoniae strains.]. Klin Lab Diagn 2020; 65:512-515. [PMID: 32762195 DOI: 10.18821/0869-2084-2020-65-8-512-515] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Due to the prevalence of biofilm infections caused by Klebsiella pneumoniae, in laboratory diagnostic practice it has a great importance to obtain a standard model of Klebsiella biofilm for evaluating the bactericidal effect and effectiveness of antimicrobial drugs. Describes the method of Klebsiella biofilms formation in vitro. The intensity of biofilm formation was evaluated by the ability of bacteria to bind the crystal violet. The degree of film formation was measured by optical density. The presence of an intercellular matrix was confirmed by staining of Congo-red solution followed by light microscopy. The effect of exogenous and endogenous factors on biofilm formation by K. pneumoniae strains was investigated. The influence of the nutrient composition, the age of the culture («daily», «weekly»), the presence of oxygen and the temperature conditions were studied. The nutrient composition of the medium significantly influenced on biofilm formation of K. pneumoniae: DMEM stimulated biofilm formation in most strains in vitro compared to TSB. The age of the culture (daily, weekly) did not significantly affect the biofilm formation of Klebsiella. At the same time, the temperature of culturing and the presence of oxygen can both stimulate and inhibit biofilm formation, depending on the strain under study. Most strains of Klebsiella better form a biofilm under aerobic conditions at 37º C.
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Affiliation(s)
- N I Ignatova
- Federal State Budgetary Educational Institution of Higher Education «Privolzhsky Research Medical University» of the Ministry of Health of the Russian, 603005, Nizhny Novgorod, Russia
| | - N A Alexandrova
- Federal State Budgetary Educational Institution of Higher Education «Privolzhsky Research Medical University» of the Ministry of Health of the Russian, 603005, Nizhny Novgorod, Russia
| | - M I Zaslavskaya
- Federal State Budgetary Educational Institution of Higher Education «Privolzhsky Research Medical University» of the Ministry of Health of the Russian, 603005, Nizhny Novgorod, Russia
| | - D V Abramycheva
- Federal State Budgetary Educational Institution of Higher Education «Privolzhsky Research Medical University» of the Ministry of Health of the Russian, 603005, Nizhny Novgorod, Russia
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16
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Plakunov VK, Zhurina MV, Gannesen AV, Mart’yanov SV, Nikolaev YA. Antibiofilm Agents: Therminological Ambiguity and Strategy for Search. Microbiology (Reading) 2020. [DOI: 10.1134/s0026261719060146] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
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17
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Plakunov VK, Nikolaev YA, Gannesen AV, Chemaeva DS, Zhurina MV. A New Approach to Detection of the Protective Effect of Escherichia coli on Gram-Positive Bacteria in Binary Biofilms in the Presence of Antibiotics. Microbiology (Reading) 2019. [DOI: 10.1134/s0026261719030093] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
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González MJ, Da Cunda P, Notejane M, Zunino P, Scavone P, Robino L. Fosfomycin tromethamine activity on biofilm and intracellular bacterial communities produced by uropathogenic Escherichia coli isolated from patients with urinary tract infection. Pathog Dis 2019; 77:5470948. [PMID: 31062019 DOI: 10.1093/femspd/ftz022] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2019] [Accepted: 04/15/2019] [Indexed: 11/12/2022] Open
Abstract
Fosfomycin tromethamine (FT), an old antibiotic revived as a new strategy to overcome antibiotic resistance, is an excellent option for the treatment of lower urinary tract infection (UTI). During UTI, Escherichia coli produces biofilms and could invade the bladder epithelial cells, developing intracellular bacterial communities (IBC). The present work aimed to evaluate the activity of FT on biofilms and IBC from clinical isolates of E. coli. A total of 38 E. coli clinical UTI isolates previously characterized as biofilm and IBC producers were studied. FT susceptibility was evaluated and its activity on 48 h biofilm was determined by microtiter plate-based biofilm assay comparing three different antibiotic concentrations. Two UPEC strains were selected to evaluate FT activity on IBC in vitro using T24 bladder cells. The survival percentage of intracellular bacteria after 24 h exposure to FT was calculated and compared to the percentage of intracellular bacteria without antibiotic. All the strains were susceptible to FT. FT produced a significant reduction of biofilms at the three concentrations tested, compared to the control. However, no statistically effect on IBC was observed after 24 h of fosfomycin exposure in cell culture. FT is a good option for bacterial biofilm reduction within UTI. However, it does not affect IBC.
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Affiliation(s)
- Maria José González
- Departamento de Microbiología, Instituto de Investigaciones Biológicas Clemente Estable, Ministerio de Educación y Cultura, Av Italia 3318, Montevideo 11600, Uruguay
| | - Paula Da Cunda
- Departamento de Microbiología, Instituto de Investigaciones Biológicas Clemente Estable, Ministerio de Educación y Cultura, Av Italia 3318, Montevideo 11600, Uruguay
| | - Martín Notejane
- Departamento de Pediatría, Facultad de Medicina, Universidad de la República Oriental del Uruguay, Av Gral Flores 2125, Montevideo 11800, Uruguay
| | - Pablo Zunino
- Departamento de Microbiología, Instituto de Investigaciones Biológicas Clemente Estable, Ministerio de Educación y Cultura, Av Italia 3318, Montevideo 11600, Uruguay
| | - Paola Scavone
- Departamento de Microbiología, Instituto de Investigaciones Biológicas Clemente Estable, Ministerio de Educación y Cultura, Av Italia 3318, Montevideo 11600, Uruguay
| | - Luciana Robino
- Departamento de Bacteriología y Virología, Instituto de Higiene, Facultad de Medicina, Universidad de la República Oriental del Uruguay, Alfredo Navarro 3051, Montevideo 11600, Uruguay
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Zorina AS, Maksimova YG, Demakov VA. Biofilm Formation by Monocultures and Mixed Cultures of Alcaligenes faecalis 2 and Rhodococcus ruber gt 1. Microbiology (Reading) 2019. [DOI: 10.1134/s0026261719020140] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
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Godovalov AP, Karpunina TI. [The determination of biofilm composition of gram-positive bacteria.]. Klin Lab Diagn 2019; 64:632-634. [PMID: 31742958 DOI: 10.18821/0869-2084-2019-64-10-632-634] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2019] [Accepted: 08/26/2019] [Indexed: 06/10/2023]
Abstract
Current methods of biofilm imaging do not support a differentiated assessment of its composition, since it is not possible to establish a substrate stained with crystal violet, as this dye can form complexes with both intracellular and extracellular structures. This approach does not adequately assess the anti-biofilm effects of drugs, while the results of studying the interaction of drugs with biofilm components can ensure their most correct choice. The aim of investigation was to study the possibility of applying the original modification of the current method to determine the ratio of the cellular part and the matrix of biofilms of gram-positive microorganisms. The biofilm components were analyzed using a two-step approach, when prepared biofilms of gram-positive microorganisms were stained with crystal violet for 5 minutes, followed by fixing the dye in bacterial cells with iodine solution, and then the colored products were dissolved with 95% alcohol: matrix components for 1 minute, total biofilm for 15 minutes, after which the composition of biofilms was estimated by the formula: M=(OP1/OP15)×100, Kb=100-M, where M is the proportion of the matrix,%; Kb - the proportion of the cellular component,%; OP1 - optical density of samples, when alcohol was allowed to dissolve the colored product for no more than 1 minute; OP15 - was the optical density of samples, when alcohol is allowed to dissolve the colored product for 15 minutes. It was shown that in the composition of the biofilm formed by the collection strain, the proportion of the matrix was 13.2%, and the cellular component accounted for 86.8%. When the same strain cultivated in the presence of an antibiotic, an increase in the biofilm matrix was observed, which is probably due to the compensatory response of the microorganism to the action of the antibiotic. The proposed approach to the study of biofilms makes it possible to evaluate its component composition. Obtaining additional information in this way can provide, inter alia, an increase in the effectiveness of antimicrobial therapy while reducing the study time.
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Affiliation(s)
- A P Godovalov
- Perm State Medical University named after Academician E.A. Wagner, Russian Ministry of Health, 614990, Perm, Russian Federation
| | - T I Karpunina
- Perm State Medical University named after Academician E.A. Wagner, Russian Ministry of Health, 614990, Perm, Russian Federation
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Shelud’ko AV, Filip’echeva YA, Telesheva EM, Burov AM, Evstigneeva SS, Burygin GL, Petrova LP. Characterization of Carbohydrate-Containing Components of Azospirillum brasilense Sp245 Biofilms. Microbiology (Reading) 2018. [DOI: 10.1134/s0026261718050156] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
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22
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Mart’yanov SV, Letarov AV, Ivanov PA, Plakunov VK. Stimulation of Violacein Biosynthesis in Chromobacterium violaceum Biofilms in the Presence of Dimethyl Sulfoxide. Microbiology (Reading) 2018. [DOI: 10.1134/s0026261718030050] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
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