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Roney M, Issahaku AR, Huq AKMM, Sapari S, Abdul Razak FI, Wilhelm A, Zamri NB, Sharmin S, Islam MR, Mohd Aluwi MFF. In Silico Exploration of Isoxazole Derivatives of Usnic Acid: Novel Therapeutic Prospects Against α-Amylase for Diabetes Treatment. Cell Biochem Biophys 2024:10.1007/s12013-024-01419-1. [PMID: 39020086 DOI: 10.1007/s12013-024-01419-1] [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: 06/21/2024] [Accepted: 07/10/2024] [Indexed: 07/19/2024]
Abstract
Diabetes mellitus (DM) a metabolic disorder characterized by high blood sugar levels causing damage to various organs over time. Current anti-diabetic drugs have limitations and side effects, prompting a search for new inhibitors targeting the α-amylase enzyme. This study aims to discover such inhibitors from thirty isoxazole derivatives of usnic acid using in silico approaches. The potential inhibitory effects of compounds were investigated using ADMET, molecular docking, molecular dynamic simulation, principal component analysis and density functional theory studies. ADMET analysis exhibited a wide range of physicochemical, pharmacokinetic, and drug-like qualities with no significant side effects which were then investigated using molecular docking experiment to determine the lead compound with the best binding affinity for the α-amylase enzyme. All compounds showed good binding affinity against α-amylase enzyme (-7.9 to -9.2 kcal/mol) where compound-13 showed the best binding affinity of -9.2 kcal/mol forming hydrogen bonds with Leu162, Tyr62, Glu233 and Asp300 amino acids. Furthermore, the binding posture and the stability of the compound-13-α-amylase enzyme complex was confirmed by molecular dynamic simulation experiment. Moreover, compound-13 showed binding energy value of -27.92 ± 5.61 kcal/mol, which indicated it could be an α-amylase inhibitor. Additionally, the reactivity of compound-13 was further confirmed by density functional theory analysis. The above findings suggest compound-13 to be a potential α-amylase inhibitor in DM. And setting the stage for further in vitro and in vivo experimental validation.
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Affiliation(s)
- Miah Roney
- Faculty of Industrial Sciences and Technology, Universiti Malaysia Pahang Al-Sultan Abdullah, Lebuhraya Persiaran Tun Khalil Yaakob, Kuantan, Pahang, Malaysia
- Centre for Bio-aromatic Research, Universiti Malaysia Pahang Al-Sultan Abdullah, Lebuhraya Persiaran Tun Khalil Yaakob, Kuantan, Pahang, Malaysia
| | - Abdul Rashid Issahaku
- Department of Chemistry, University of the Free State, 205 Nelson Mandela Avenue, Bloemfontein, 9301, South Africa
| | - A K M Moyeenul Huq
- Centre for Drug and Herbal Development, Faculty of Pharmacy, Universiti Kebangsaan Malaysia, Jalan Raja Muda Abdul Aziz-50300, Kuala Lumpur, Malaysia
| | - Suhaila Sapari
- Department of Chemistry, Faculty of Science, University Technology of Malaysia, Skudai, 81310, Johor Bahru, Johor, Malaysia
| | - Fazira Ilyana Abdul Razak
- Department of Chemistry, Faculty of Science, University Technology of Malaysia, Skudai, 81310, Johor Bahru, Johor, Malaysia
| | - Anke Wilhelm
- Centre for Drug and Herbal Development, Faculty of Pharmacy, Universiti Kebangsaan Malaysia, Jalan Raja Muda Abdul Aziz-50300, Kuala Lumpur, Malaysia
| | - Normaiza Binti Zamri
- Faculty of Industrial Sciences and Technology, Universiti Malaysia Pahang Al-Sultan Abdullah, Lebuhraya Persiaran Tun Khalil Yaakob, Kuantan, Pahang, Malaysia
| | - Sabrina Sharmin
- School of Pharmacy, BRAC University, 66 Mohakhali, Dhaka, 1212, Bangladesh
| | - Md Robiul Islam
- School of Pharmacy, BRAC University, 66 Mohakhali, Dhaka, 1212, Bangladesh
| | - Mohd Fadhlizil Fasihi Mohd Aluwi
- Faculty of Industrial Sciences and Technology, Universiti Malaysia Pahang Al-Sultan Abdullah, Lebuhraya Persiaran Tun Khalil Yaakob, Kuantan, Pahang, Malaysia.
- Centre for Bio-aromatic Research, Universiti Malaysia Pahang Al-Sultan Abdullah, Lebuhraya Persiaran Tun Khalil Yaakob, Kuantan, Pahang, Malaysia.
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2
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Park SJ, Sharma A, Lee HJ. An Update on the Chemical Constituents and Biological Properties of Selected Species of an Underpinned Genus of Red Algae: Chondrus. Mar Drugs 2024; 22:47. [PMID: 38248672 PMCID: PMC10817618 DOI: 10.3390/md22010047] [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: 12/21/2023] [Revised: 01/10/2024] [Accepted: 01/15/2024] [Indexed: 01/23/2024] Open
Abstract
Macroalgae, particularly red seaweeds, have attracted significant attention due to their economic and health benefits. Chondrus, a red algae genus, despite its economic importance, seems to be undervalued. Among all its species, Chondrus crispus has been meticulously documented for its biological properties, and little is known about other species. No comprehensive review of the biological properties of this genus has been acknowledged. Thus, this review aimed to summarize the available information on the chemical constituents and biological properties of a few selected species, including Chondrus crispus, Chondrus ocellatus, Mazzaella canaliculata, and Chondrus armatus. We compiled and discovered that the genus is offering most of the important health-promoting benefits evidenced from in vitro and in vivo studies focused on antimicrobial, immunomodulation, neuroprotection, anti-atopic, anti-inflammatory, anti-viral, anti-diabetic, cytoprotective, antioxidant, anti-coagulation, nephroprotective, anti-tumor, and anti-venom activity, which speaks about the potential of this genus. Data on clinical studies are limited. Further, around 105 chemical constituents have been reported from Chondrus spp. Given its significance, further investigation is warranted, in the form of meticulously planned cell, animal, and clinical studies that concentrate on novel health-enhancing endeavors, in order to unveil the full potential of this genus. The review also outlines challenges and future directions.
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Affiliation(s)
- Seon-Joo Park
- Department of Food and Nutrition, College of Bionanotechnology, Gachon University, Seongnam-si 13120, Republic of Korea;
- Institute for Aging and Clinical Nutrition Research, Gachon University, Seongnam-si 13120, Republic of Korea
| | - Anshul Sharma
- Department of Food and Nutrition, College of Bionanotechnology, Gachon University, Seongnam-si 13120, Republic of Korea;
- Institute for Aging and Clinical Nutrition Research, Gachon University, Seongnam-si 13120, Republic of Korea
| | - Hae-Jeung Lee
- Department of Food and Nutrition, College of Bionanotechnology, Gachon University, Seongnam-si 13120, Republic of Korea;
- Institute for Aging and Clinical Nutrition Research, Gachon University, Seongnam-si 13120, Republic of Korea
- Department of Health Sciences and Technology, Gachon Advanced Institute for Health Science and Technology (GAIHST), Gachon University, Incheon 21999, Republic of Korea
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3
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Davis RA, Cervin G, Beattie KD, Rali T, Fauchon M, Hellio C, Bodin Åkerlund L, Pavia H, Svenson J. Evaluation of natural resveratrol multimers as marine antifoulants. BIOFOULING 2023; 39:775-784. [PMID: 37822262 DOI: 10.1080/08927014.2023.2263374] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/12/2023] [Accepted: 09/18/2023] [Indexed: 10/13/2023]
Abstract
In the current study we investigate the antifouling potential of three polyphenolic resveratrol multimers (-)-hopeaphenol, vaticanol B and vatalbinoside A, isolated from two species of Anisoptera found in the Papua New Guinean rainforest. The compounds were evaluated against the growth and settlement of eight marine microfoulers and against the settlement and metamorphosis of Amphibalanus improvisus barnacle cyprids. The two isomeric compounds (-)-hopeaphenol and vaticanol B displayed a high inhibitory potential against the cyprid larvae metamorphosis at 2.8 and 1.1 μM. (-)-Hopeaphenol was also shown to be a strong inhibitor of both microalgal and bacterial adhesion at submicromolar concentrations with low toxicity. Resveratrol displayed a lower antifouling activity compared to the multimers and had higher off target toxicity against MCR-5 fibroblasts. This study illustrates the potential of natural products as a valuable source for the discovery of novel antifouling leads with low toxicity.
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Affiliation(s)
- Rohan A Davis
- Griffith Institute for Drug Discovery, School of Environment and Science, Griffith University, Brisbane, QLD, Australia
| | - Gunnar Cervin
- Department of Marine Sciences - Tjärnö, University of Gothenburg, Strömstad, Sweden
| | - Karren D Beattie
- Griffith Institute for Drug Discovery, School of Environment and Science, Griffith University, Brisbane, QLD, Australia
| | - Topul Rali
- School of Natural and Physical Sciences, The University of Papua New Guinea, Port Moresby, Papua New Guinea
| | - Marilyne Fauchon
- Laboratoire des Sciences de l'Environnement MARin (LEMAR), CNRS, IRD, IFREMER, University of Brest, Brest, France
| | - Claire Hellio
- Laboratoire des Sciences de l'Environnement MARin (LEMAR), CNRS, IRD, IFREMER, University of Brest, Brest, France
| | - Lovisa Bodin Åkerlund
- Department of Biological Function, RISE Research Institutes of Sweden, Borås, Sweden
| | - Henrik Pavia
- Department of Marine Sciences - Tjärnö, University of Gothenburg, Strömstad, Sweden
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4
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Valente S, Oliveira F, Ferreira IJ, Paiva A, Sobral RG, Diniz MS, Gaudêncio SP, Duarte ARC. Hydrophobic DES Based on Menthol and Natural Organic Acids for Use in Antifouling Marine Coatings. ACS SUSTAINABLE CHEMISTRY & ENGINEERING 2023; 11:9989-10000. [PMID: 37448722 PMCID: PMC10337252 DOI: 10.1021/acssuschemeng.3c01120] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/24/2023] [Revised: 06/05/2023] [Indexed: 07/15/2023]
Abstract
Marine biofouling negatively impacts industries with off-shore infrastructures, such as naval, oil, and aquaculture. To date, there are no ideal sustainable, economic, and environmentally benign solutions to deal with this phenomenon. The advances achieved in green solvents, as well as its application in different industries, such as pharmaceutical and biotechnology, have promoted the emergence of deep eutectic systems (DES). These eutectic systems have applications in various fields and can be revolutionary in the marine-based industrial sector. In this study, the main objective was to investigate the potential use of hydrophobic DES (HDES) based on menthol and natural organic acids for their use as marine antifouling coatings. Our strategy encompassed the physicochemical characterization of different formulations, which allowed us to identify the most appropriate molar ratio and intermolecular interactions for HDES formations. The miscibility of the resulting HDES with the marine coating has been evaluated and proven to be successful. The Men/OL (1:1) system proved to be the most promising in terms of cost-production and thus was the one used in subsequent antifouling tests. The cytotoxicity of this HDES was evaluated using an in vitro cell model (HaCat cells) showing no significant toxicity. Furthermore, the application of this system incorporated into coatings that are used in marine structures was also studied using marine species (Mytilus edulis mussels and Patella vulgata limpets) to evaluate both their antifouling and ecotoxicity effects. HDES Men/OL (1:1) incorporated in marine coatings was promising in reducing marine macrofouling and also proved to be effective at the level of microfouling without viability impairment of the tested marine species. It was revealed to be more efficient than using copper oxide, metallic copper, or ivermectin as antifouling agents. Biochemical assays performed on marine species showed that this HDES does not induce oxidative stress in the tested species. These results are a strong indication of the potential of this HDES to be sustainable and efficiently used in marine fouling control technologies.
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Affiliation(s)
- Sara Valente
- LAQV-REQUIMTE,
Chemistry Department, NOVA School of Science
and Technology, 2829-516 Caparica, Portugal
- Associate
Laboratory i4HB—Institute for Health and Bioeconomy, NOVA School of Science and Technology, 2829-516 Caparica, Portugal
- UCIBIO,
Chemistry and Life Sciences Departments, NOVA School of Science and Technology, 2829-516 Caparica, Portugal
| | - Filipe Oliveira
- LAQV-REQUIMTE,
Chemistry Department, NOVA School of Science
and Technology, 2829-516 Caparica, Portugal
| | - Inês João Ferreira
- LAQV-REQUIMTE,
Chemistry Department, NOVA School of Science
and Technology, 2829-516 Caparica, Portugal
| | - Alexandre Paiva
- LAQV-REQUIMTE,
Chemistry Department, NOVA School of Science
and Technology, 2829-516 Caparica, Portugal
| | - Rita G. Sobral
- Associate
Laboratory i4HB—Institute for Health and Bioeconomy, NOVA School of Science and Technology, 2829-516 Caparica, Portugal
- UCIBIO,
Chemistry and Life Sciences Departments, NOVA School of Science and Technology, 2829-516 Caparica, Portugal
| | - Mário S. Diniz
- Associate
Laboratory i4HB—Institute for Health and Bioeconomy, NOVA School of Science and Technology, 2829-516 Caparica, Portugal
- UCIBIO,
Chemistry and Life Sciences Departments, NOVA School of Science and Technology, 2829-516 Caparica, Portugal
| | - Susana P. Gaudêncio
- Associate
Laboratory i4HB—Institute for Health and Bioeconomy, NOVA School of Science and Technology, 2829-516 Caparica, Portugal
- UCIBIO,
Chemistry and Life Sciences Departments, NOVA School of Science and Technology, 2829-516 Caparica, Portugal
| | - Ana Rita Cruz Duarte
- LAQV-REQUIMTE,
Chemistry Department, NOVA School of Science
and Technology, 2829-516 Caparica, Portugal
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5
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Lahiri D, Nag M, Dey A, Sarkar T, Pati S, Nirmal NP, Ray RR, Upadhye VJ, Pandit S, Moovendhan M, Kavisri M. Marine bioactive compounds as antibiofilm agent: a metabolomic approach. Arch Microbiol 2023; 205:54. [PMID: 36602609 DOI: 10.1007/s00203-022-03391-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2022] [Revised: 12/17/2022] [Accepted: 12/27/2022] [Indexed: 01/06/2023]
Abstract
The ocean is a treasure trove of both living and nonliving creatures, harboring incredibly diverse group of organisms. A plethora of marine sourced bioactive compounds are discovered over the past few decades, many of which are found to show antibiofilm activity. These are of immense clinical significance since the formation of microbial biofilm is associated with the development of high antibiotic resistance. Biofilms are also responsible to bring about problems associated with industries. In fact, the toilets and wash-basins also show degradation due to development of biofilm on their surfaces. Antimicrobial resistance exhibited by the biofilm can be a potent threat not only for the health care unit along with industries and daily utilities. Various recent studies have shown that the marine members of various kingdom are capable of producing antibiofilm compounds. Many such compounds are with unique structural features and metabolomics approaches are essential to study such large sets of metabolites. Associating holobiome metabolomics with analysis of their chemical attribute may bring new insights on their antibiofilm effect and their applicability as a substitute for conventional antibiotics. The application of computer-aided drug design/discovery (CADD) techniques including neural network approaches and structured-based virtual screening, ligand-based virtual screening in combination with experimental validation techniques may help in the identification of these molecules and evaluation of their drug like properties.
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Affiliation(s)
- Dibyajit Lahiri
- Department of Biotechnology, University of Engineering & Management, Kolkata, 700160, West Bengal, India
| | - Moupriya Nag
- Department of Biotechnology, University of Engineering & Management, Kolkata, 700160, West Bengal, India
| | - Ankita Dey
- Department of Biotechnology, Maulana Abul Kalam Azad University of Technology, Haringhata, West Bengal, India
| | - Tanmay Sarkar
- Department of Food Processing Technology, Malda Polytechnic, West Bengal State Council of Technical Education, Government of West Bengal, Malda, 732102, West Bengal, India
| | - Siddhartha Pati
- Nat Nov Bioscience Private Limited, Balasore, 756001, Odisha, India
| | - Nilesh P Nirmal
- Institute of Nutrition, Mahidol University, 999 Phutthamonthon 4 Road, Salaya, 73170, Nakhon Pathom, Thailand.
| | - Rina Rani Ray
- Department of Biotechnology, Maulana Abul Kalam Azad University of Technology, Haringhata, West Bengal, India.
| | - Vijay Jagdish Upadhye
- Center of Research for Development (CR4D), Parul Institute of Applied Sciences (PIAS), Parul University, Vadodara, Gujarat, India
| | - Soumya Pandit
- Department of Life Sciences, School of Basic Sciences and Research, Sharda University, Greater Noida, 201306, India
| | - M Moovendhan
- Centre for Ocean Research (DST-FIST Sponsored Centre) MoES-Earth Science & Technology Cell, Col. Dr. Jeppiaar Research Park, Sathyabama Institute of Science and Technology, Chennai, 600119, Tamil Nadu, India
| | - M Kavisri
- Department of Civil Engineering, School of Building and Environment, Sathyabama Institute of Science and Technology, Chennai, 600119, India
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Egbert S, Hoffman JR, McMullin RT, Lendemer JC, Sorensen JL. Unraveling usnic acid: a comparison of biosynthetic gene clusters between two reindeer lichen (Cladonia rangiferina and C. uncialis). Fungal Biol 2022; 126:697-706. [PMID: 36517138 DOI: 10.1016/j.funbio.2022.08.007] [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: 03/31/2022] [Revised: 08/09/2022] [Accepted: 08/15/2022] [Indexed: 01/07/2023]
Abstract
Lichenized fungi are known for their production of a diversity of secondary metabolites, many of which have broad biological and pharmacological applications. By far the most well-studied of these metabolites is usnic acid. While this metabolite has been well-known and researched for decades, the gene cluster responsible for its production was only recently identified from the species Cladonia uncialis. Usnic acid production varies considerably in the genus Cladonia, even among closely related taxa, and many species, such as C. rangiferina, have been inferred to be incapable of producing the metabolite based on analysis by thin-layer chromatography (TLC). We sequenced and examined the usnic acid biosynthetic gene clusters, or lack thereof, from four closely related Cladonia species (C. oricola, C. rangiferina, C. stygia, and C. subtenuis), and compare them against those of C. uncialis. We complement this comparison with tiered chemical profile analyses to confirm the presence or absence of usnic acid in select samples, using both HPLC and LC-MS. Despite long-standing reporting that C. rangiferina lacks the ability to produce usnic acid, we observed functional gene clusters from the species and detected usnic acid when extracts were examined by LC-MS. By contrast, C. stygia and C. oricola, have been previously described as lacking the ability to produce usnic acid, lacked the gene cluster entirely, and no usnic acid could be detected in C. oricola extracts via HPLC or LC-MS. This work suggests that chemical profiles attained through inexpensive and low-sensitivity methods like TLC may fail to detect low abundance metabolites that can be taxonomically informative. This study also bolsters understanding of the usnic acid gene cluster in lichens, revealing differences among domains of the polyketide synthase which may explain observed differences in expression. These results reinforce the need for comprehensive characterization of lichen secondary metabolite profiles with sensitive LC-MS methods.
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Affiliation(s)
- Susan Egbert
- Department of Chemistry, University of Manitoba, Winnipeg, Manitoba, R3T 2N2, Canada
| | - Jordan R Hoffman
- Department of Biology, Graduate Center, City University of New York, The New York, USA; Botanical Garden, 2900 Southern Blvd, Bronx, NY, 10458-5126, USA
| | - R Troy McMullin
- Research and Collections, Canadian Museum of Nature, PO Box 3443, Station D, Ottawa, Ontario, K1P 6P4, Canada
| | - James C Lendemer
- Botanical Garden, 2900 Southern Blvd, Bronx, NY, 10458-5126, USA.
| | - John L Sorensen
- Department of Chemistry, University of Manitoba, Winnipeg, Manitoba, R3T 2N2, Canada.
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7
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Chun ALM, Mosayyebi A, Butt A, Carugo D, Salta M. Early biofilm and streamer formation is mediated by wall shear stress and surface wettability: A multifactorial microfluidic study. Microbiologyopen 2022; 11:e1310. [PMID: 36031954 PMCID: PMC9380405 DOI: 10.1002/mbo3.1310] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2022] [Revised: 07/29/2022] [Accepted: 07/29/2022] [Indexed: 11/17/2022] Open
Abstract
Biofilms are intricate communities of microorganisms encapsulated within a self‐produced matrix of extra‐polymeric substances (EPS), creating complex three‐dimensional structures allowing for liquid and nutrient transport through them. These aggregations offer constituent microorganisms enhanced protection from environmental stimuli—like fluid flow—and are also associated with higher resistance to antimicrobial compounds, providing a persistent cause of concern in numerous sectors like the marine (biofouling and aquaculture), medical (infections and antimicrobial resistance), dentistry (plaque on teeth), food safety, as well as causing energy loss and corrosion. Recent studies have demonstrated that biofilms interact with microplastics, often influencing their pathway to higher trophic levels. Previous research has shown that initial bacterial attachment is affected by surface properties. Using a microfluidic flow cell, we have investigated the relationship between both wall shear stress (τw) and surface properties (surface wettability) upon biofilm formation of two species (Cobetia marina and Pseudomonas aeruginosa). We investigated biofilm development on low‐density polyethylene (LDPE) membranes, Permanox® slides, and glass slides, using nucleic acid staining and end‐point confocal laser scanning microscopy. The results show that flow conditions affect biomass, maximum thickness, and surface area of biofilms, with higher τw (5.6 Pa) resulting in thinner biofilms than lower τw (0.2 Pa). In addition, we observed differences in biofilm development across the surfaces tested, with LDPE typically demonstrating more overall biofilm in comparison to Permanox® and glass. Moreover, we demonstrate the formation of biofilm streamers under laminar flow conditions within straight micro‐channels.
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Affiliation(s)
- Alexander L M Chun
- School of Biological Sciences, Faculty of Science and Health, University of Portsmouth, Portsmouth, UK
| | - Ali Mosayyebi
- Department of Mechanical Engineering, Faculty of Engineering and Physical Sciences, University of Southampton, Southampton, UK
| | - Arthur Butt
- School of Pharmacy & Biomedical Sciences, Faculty of Science and Health, University of Portsmouth, Portsmouth, UK
| | - Dario Carugo
- Department of Pharmaceutics, UCL School of Pharmacy, University College London, London, UK
| | - Maria Salta
- School of Biological Sciences, Faculty of Science and Health, University of Portsmouth, Portsmouth, UK.,Department of Microbial Corrosion and Biofilms, Den Helder, The Netherlands
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Carpena M, Garcia-Perez P, Garcia-Oliveira P, Chamorro F, Otero P, Lourenço-Lopes C, Cao H, Simal-Gandara J, Prieto MA. Biological properties and potential of compounds extracted from red seaweeds. PHYTOCHEMISTRY REVIEWS : PROCEEDINGS OF THE PHYTOCHEMICAL SOCIETY OF EUROPE 2022; 22:1-32. [PMID: 35791430 PMCID: PMC9247959 DOI: 10.1007/s11101-022-09826-z] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/12/2022] [Accepted: 05/22/2022] [Indexed: 05/03/2023]
Abstract
Macroalgae have been recently used for different applications in the food, cosmetic and pharmaceutical industry since they do not compete for land and freshwater against other resources. Moreover, they have been highlighted as a potential source of bioactive compounds. Red algae (Rhodophyta) are the largest group of seaweeds, including around 6000 different species, thus it can be hypothesized that they are a potential source of bioactive compounds. Sulfated polysaccharides, mainly agar and carrageenans, are the most relevant and exploited compounds of red algae. Other potential molecules are essential fatty acids, phycobiliproteins, vitamins, minerals, and other secondary metabolites. All these compounds have been demonstrated to exert several biological activities, among which antioxidant, anti-inflammatory, antitumor, and antimicrobial properties can be highlighted. Nevertheless, these properties need to be further tested on in vivo experiments and go in-depth in the study of the mechanism of action of the specific molecules and the understanding of the structure-activity relation. At last, the extraction technologies are essential for the correct isolation of the molecules, in a cost-effective way, to facilitate the scale-up of the processes and their further application by the industry. This manuscript is aimed at describing the fundamental composition of red algae and their most studied biological properties to pave the way to the utilization of this underused resource.
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Affiliation(s)
- M. Carpena
- Nutrition and Bromatology Group, Department of Analytical Chemistry and Food Science, Faculty of Science, Universidade de Vigo, E-32004 Ourense, Spain
| | - P. Garcia-Perez
- Nutrition and Bromatology Group, Department of Analytical Chemistry and Food Science, Faculty of Science, Universidade de Vigo, E-32004 Ourense, Spain
| | - P. Garcia-Oliveira
- Nutrition and Bromatology Group, Department of Analytical Chemistry and Food Science, Faculty of Science, Universidade de Vigo, E-32004 Ourense, Spain
- Centro de Investigação de Montanha (CIMO), Instituto Politécnico de Bragança, Campus de Santa Apolonia, 5300-253 Bragança, Portugal
| | - F. Chamorro
- Nutrition and Bromatology Group, Department of Analytical Chemistry and Food Science, Faculty of Science, Universidade de Vigo, E-32004 Ourense, Spain
| | - Paz Otero
- Nutrition and Bromatology Group, Department of Analytical Chemistry and Food Science, Faculty of Science, Universidade de Vigo, E-32004 Ourense, Spain
| | - C. Lourenço-Lopes
- Nutrition and Bromatology Group, Department of Analytical Chemistry and Food Science, Faculty of Science, Universidade de Vigo, E-32004 Ourense, Spain
| | - Hui Cao
- Nutrition and Bromatology Group, Department of Analytical Chemistry and Food Science, Faculty of Science, Universidade de Vigo, E-32004 Ourense, Spain
| | - J. Simal-Gandara
- Nutrition and Bromatology Group, Department of Analytical Chemistry and Food Science, Faculty of Science, Universidade de Vigo, E-32004 Ourense, Spain
| | - M. A. Prieto
- Nutrition and Bromatology Group, Department of Analytical Chemistry and Food Science, Faculty of Science, Universidade de Vigo, E-32004 Ourense, Spain
- Centro de Investigação de Montanha (CIMO), Instituto Politécnico de Bragança, Campus de Santa Apolonia, 5300-253 Bragança, Portugal
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9
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Bacterial biofilms and their resistance mechanisms: a brief look at treatment with natural agents. Folia Microbiol (Praha) 2022; 67:535-554. [DOI: 10.1007/s12223-022-00955-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2021] [Accepted: 01/29/2022] [Indexed: 12/14/2022]
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10
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Solihin J, Waturangi DE, Purwadaria T. Induction of amylase and protease as antibiofilm agents by starch, casein, and yeast extract in Arthrobacter sp. CW01. BMC Microbiol 2021; 21:232. [PMID: 34425755 PMCID: PMC8381481 DOI: 10.1186/s12866-021-02294-z] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2020] [Accepted: 08/11/2021] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND In unfavourable environment, such as nutrient limitation, some bacteria encased themselves into a three dimensional polymer matrix called biofilm. The majority of microbial infections in human are biofilm related, including chronic lung, wound, and ear infections. The matrix of biofilm which consists of extracellular polymeric substances (EPS) causes bacterial colonization on medical implanted device in patients, such as catheter and lead to patient's death. Biofilm infections are harder to treat due to increasing antibiotic resistance compared to planktonic microbial cells and escalating the antibiotic concentration may result into in vivo toxicity for the patients. Special compounds which are non-microbicidal that could inhibit or destroy biofilm formation are called antibiofilm compounds, for example enzymes, anti-quorum sensing, and anti-adhesins. Arthrobacter sp. CW01 produced antibiofilm compound known as amylase. This time our preliminary study proved that the antibiofilm compound was not only amylase, but also protease. Therefore, this research aimed to optimize the production of antibiofilm agents using amylase and protease inducing media. The five types of production media used in this research were brain heart infusion (BHI) (Oxoid), BHI with starch (BHIS), casein with starch (CS), yeast extract with starch (YS), and casein-yeast extract with starch (CYS). Biofilm eradication and inhibition activities were assayed against Pseudomonas aeruginosa (ATCC 27,853) and Staphylococcus aureus (ATCC 25,923). RESULTS The results showed that different production media influenced the antibiofilm activity. Addition of starch, casein and yeast extract increased the production of amylase and protease significantly. Higher amylase activity would gradually increase the antibiofilm activity until it reached the certain optimum point. It was shown that crude extracts which contained amylase only (BHI, BHIS and YS) had the optimum eradication activity against P. aeruginosa and S. aureus biofilm around 60-70 %. Meanwhile, CS and CYS crude extracts which contained both amylase and protease increased the biofilm eradication activity against both pathogens, which were around 70-90 %. CONCLUSIONS It was concluded that the combination of amylase and protease was more effective as antibiofilm agents against P. aeruginosa and S. aureus rather than amylase only.
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Affiliation(s)
- Jeffrine Solihin
- Department of Biotechnology, Faculty of Biotechnology, Atma Jaya Catholic University of Indonesia, 12930, Jakarta, Indonesia
| | - Diana Elizabeth Waturangi
- Master Biotechnology Program, Faculty of Biotechnology, Atma Jaya Catholic University of Indonesia, 12930, Jakarta, Indonesia.
| | - Tresnawati Purwadaria
- Department of Biotechnology, Faculty of Biotechnology, Atma Jaya Catholic University of Indonesia, 12930, Jakarta, Indonesia
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11
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Red Seaweeds as a Source of Nutrients and Bioactive Compounds: Optimization of the Extraction. CHEMOSENSORS 2021. [DOI: 10.3390/chemosensors9060132] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
The present work aimed to determine the nutritional composition (ash, protein, fat, carbohydrate content and energy value), phenolic compounds, pigments and organic acids content of three typical red algae from the Northwest of Spain: Chondrus crispus, Mastocarpus stellatus, and Gigartina pistillata; as well as their antioxidant and antimicrobial activities. Furthermore, the present work compared two extraction techniques: conventional heat assisted extraction (HAE) and high pressure assisted extraction (HPAE) to maximize the yield and the concentration of target compounds. Different independent variables were considered for the response study. Time (t) and percentage of ethanol of the solvent (S) were chosen for both techniques and temperature (T) and pressure (P) were used for HAE and HPAE, respectively. The experiments were designed following a response surface methodology (RSM) approach. The obtained results showed a similar nutritional composition between algae samples: low-fat content and high content of proteins, carbohydrates and energy. All tested algae showed good antioxidant and antimicrobial properties. Finally, HEA demonstrated to be the most efficient extraction technique. This study confirms the potential of red algae to be part of the human diet as a source of non-animal protein, due to its nutritional content, phenolic profile, pigments concentration and bioactive properties, which proves that HAE is the optimum technique for the extraction maximization.
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12
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Piola R, Leary M, Santander R, Shimeta J. Antifouling performance of copper-containing fused filament fabrication (FFF) 3-D printing polymer filaments for marine applications. BIOFOULING 2021; 37:206-221. [PMID: 33691551 DOI: 10.1080/08927014.2021.1892085] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/21/2020] [Revised: 02/10/2021] [Accepted: 02/11/2021] [Indexed: 06/12/2023]
Abstract
3-D printing allows for rapid prototyping and manufacture of components in a cost effective and timely manner, becoming a popular technology for oceanographic and maritime engineering applications. However, 3-D printed components are at risk of accumulating marine biofouling. This study examined the antifouling (AF) performance of three Cu-containing 3-D printing polymer filaments for potential marine use. The amount of Cu present in each filament was the primary determinant of AF performance. The lowest Cu-content (30%) filament recording 29% biofouling cover after 1 month and near 100% cover after 3 months. These AF results were comparable to polylactide acid (PLA) and acrylonitrile butadiene styrene (ABS) polymer filament controls. The medium (50%) Cu-content filament remained largely free of biofouling until 3 months (where 48% coverage was observed), after which fouling cover increased to 100% by ∼12 months. The highest Cu-content (80%) filament remained free of all macrofouling for the entire 24 months of the experiment.
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Affiliation(s)
- R Piola
- Maritime Division, Defence Science and Technology Group, Fishermans Bend, VIC, Australia
- Centre for Environmental Sustainability and Remediation, School of Science, RMIT University, Bundoora, VIC, Australia
| | - M Leary
- School of Mechanical and Automotive Engineering, RMIT University, Bundoora, VIC, Australia
| | - R Santander
- School of Mechanical and Automotive Engineering, RMIT University, Bundoora, VIC, Australia
| | - J Shimeta
- Centre for Environmental Sustainability and Remediation, School of Science, RMIT University, Bundoora, VIC, Australia
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The Effects of Eugenol, Trans-Cinnamaldehyde, Citronellol, and Terpineol on Escherichia coli Biofilm Control as Assessed by Culture-Dependent and -Independent Methods. Molecules 2020; 25:molecules25112641. [PMID: 32517201 PMCID: PMC7321256 DOI: 10.3390/molecules25112641] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2020] [Revised: 06/01/2020] [Accepted: 06/05/2020] [Indexed: 11/16/2022] Open
Abstract
Bacterial biofilms contribute to problems with preserving food hygiene, jeopardizing any conventional intervention method used by the food industry. Hence, the approach of using essential oil (EO) compounds effective in biofilm control has considerable merit and deserves in-depth research. In this study, the effect of selected EO compounds (eugenol, trans-cinnamaldehyde, citronellol, and terpineol) was assessed on Escherichia coli biofilm control by plate count, resazurin assay, and Syto® 9/PI (-/propidium iodide) staining coupled with flow cytometry (FCM) and confocal laser scanning microscopy (CLSM). The selected EO compounds effectively inhibited the growth of planktonic E. coli at low concentrations of 3–5 mM, revealing a high antimicrobial activity. EO compounds markedly interfered with biofilms too, with trans-cinnamaldehyde causing the most prominent effects. Its antibiofilm activity was manifested by a high reduction of cell metabolic activity (>60%) and almost complete reduction in biofilm cell culturability. In addition, almost 90% of the total cells had perturbed cell membranes. Trans-cinnamaldehyde further impacted the cell morphology resulting in the filamentation and, thus, in the creation of a mesh network of cells. Citronellol scored the second in terms of the severity of the observed effects. However, most of all, it strongly prevented native microcolony formation. Eugenol and terpineol also affected the formation of a typical biofilm structure; however, small cell aggregates were still repeatedly found. Overall, eugenol caused the mildest impairment of cell membranes where 50% of the total cells showed the Syto® 9+/PI– pattern coupled with healthy cells and another 48% with injured cells (the Syto® 9+/PI+). For terpineol, despite a similar percentage of healthy cells, another 45% was shared between moderately (Syto® 9+PI+) and heavily (Syto® 9–PI+) damaged cells. The results highlight the importance of a multi-method approach for an accurate assessment of EO compounds’ action against biofilms and may help develop better strategies for their effective use in the food industry.
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Cattò C, De Vincenti L, Cappitelli F, D’Attoma G, Saponari M, Villa F, Forlani F. Non-Lethal Effects of N-Acetylcysteine on Xylella fastidiosa Strain De Donno Biofilm Formation and Detachment. Microorganisms 2019; 7:E656. [PMID: 31817370 PMCID: PMC6955915 DOI: 10.3390/microorganisms7120656] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2019] [Revised: 11/28/2019] [Accepted: 12/03/2019] [Indexed: 01/03/2023] Open
Abstract
This study investigated in-vitro the non-lethal effects of N-acetylcysteine (NAC) on Xylella fastidiosa subspecies pauca strain De Donno (Xf-DD) biofilm. This strain was isolated from the olive trees affected by the olive quick decline syndrome in southern Italy. Xf-DD was first exposed to non-lethal concentrations of NAC from 0.05 to 1000 µM. Cell surface adhesion was dramatically reduced at 500 µM NAC (-47%), hence, this concentration was selected for investigating the effects of pre-, post- and co-treatments on biofilm physiology and structural development, oxidative homeostasis, and biofilm detachment. Even though 500 µM NAC reduced bacterial attachment to surfaces, compared to the control samples, it promoted Xf-DD biofilm formation by increasing: (i) biofilm biomass by up to 78% in the co-treatment, (ii) matrix polysaccharides production by up to 72% in the pre-treatment, and (iii) reactive oxygen species levels by 3.5-fold in the co-treatment. Xf-DD biofilm detachment without and with NAC was also investigated. The NAC treatment did not increase biofilm detachment, compared to the control samples. All these findings suggested that, at 500 µM, NAC diversified the phenotypes in Xf-DD biofilm, promoting biofilm formation (hyper-biofilm-forming phenotype) and discouraging biofilm detachment (hyper-attachment phenotype), while increasing oxidative stress level in the biofilm.
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Affiliation(s)
- Cristina Cattò
- Department of Food, Environmental and Nutritional Sciences, Università degli Studi di Milano, via Celoria 2, 20133 Milano, Italy; (C.C.); (L.D.V.); (F.C.); (F.F.)
| | - Luca De Vincenti
- Department of Food, Environmental and Nutritional Sciences, Università degli Studi di Milano, via Celoria 2, 20133 Milano, Italy; (C.C.); (L.D.V.); (F.C.); (F.F.)
| | - Francesca Cappitelli
- Department of Food, Environmental and Nutritional Sciences, Università degli Studi di Milano, via Celoria 2, 20133 Milano, Italy; (C.C.); (L.D.V.); (F.C.); (F.F.)
| | - Giusy D’Attoma
- Institute for Sustainable Plant Protection, Consiglio Nazionale delle Ricerche, via Amendola 165/A, 70126 Bari, Italy (M.S.)
| | - Maria Saponari
- Institute for Sustainable Plant Protection, Consiglio Nazionale delle Ricerche, via Amendola 165/A, 70126 Bari, Italy (M.S.)
| | - Federica Villa
- Department of Food, Environmental and Nutritional Sciences, Università degli Studi di Milano, via Celoria 2, 20133 Milano, Italy; (C.C.); (L.D.V.); (F.C.); (F.F.)
| | - Fabio Forlani
- Department of Food, Environmental and Nutritional Sciences, Università degli Studi di Milano, via Celoria 2, 20133 Milano, Italy; (C.C.); (L.D.V.); (F.C.); (F.F.)
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Santos HCD, Vieira DS, Yamamoto SM, Costa MM, Sá MC, Silva EM, Silva TM. Antimicrobial activity of propolis extract fractions against Staphylococcus spp. isolated from goat mastitis. PESQUISA VETERINÁRIA BRASILEIRA 2019. [DOI: 10.1590/1678-5150-pvb-5940] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
ABSTRACT: The indiscriminate use of antibiotics in the treatment of caprine mastitis causes the appearance of resistant microorganisms, besides leaving residues in milk, putting at risk to human health. In this way, propolis is an alternative in the treatment of diseases because it has antimicrobial activity, mainly because of the presence of flavonoids in its composition. The aim of this study was to evaluate the antimicrobial potential of propolis to Staphylococcus spp. Isolated from cases of goat mastitis and qualify the crude ethanoic extract by high performance liquid chromatography (HPLC). In this study, the minimum bactericidal concentration values of propolis extracts in ethanol, ethyl acetate and hexane showed that the best concentrations capable of promoting the highest mortality of the isolates of Staphylococcus spp. from mastitis in goats, were 6250, 3125 and 1562.5μg/mL, respectively. By the microplate adherence test, it was found that 20.78% isolates were not able to form biofilm, 14.70% were classified as moderate and 64.70% were weak and none as a strong biofilm producer. Propolis in its different diluents was able to affect the formation of biofilm and showed a pronounced marked antimicrobial activity against Staphylococcus spp. strains and may be indicated for use in in vivo studies.
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Affiliation(s)
| | | | | | | | - Maria C.A. Sá
- Universidade Federal do Vale do São Francisco, Brazil
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16
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Oliveira GS, Lopes DRG, Andre C, Silva CC, Baglinière F, Vanetti MCD. Multispecies biofilm formation by the contaminating microbiota in raw milk. BIOFOULING 2019; 35:819-831. [PMID: 31558046 DOI: 10.1080/08927014.2019.1666267] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/29/2019] [Revised: 08/26/2019] [Accepted: 09/03/2019] [Indexed: 06/10/2023]
Abstract
Biofilms can be formed on the surfaces of dairy processing equipment and are a potential source of product contamination. This study evaluated the diversity of multispecies biofilms formed on stainless steel (SS) due to the contaminating microbiota in raw milk. Samples of raw milk were used: one was fresh milk and the other maintained in refrigerated bulk tanks for up to 48 h. The mesophilic aerobic contamination was ∼104 CFU ml-1 in fresh milk and 106 CFU ml-1 in bulk milk. SS coupons were kept immersed in the milk at 7 ±2 °C for 10 days, and every two days, the raw milk was changed for samples of the same origin collected on the current day. After incubation for 10 days, sessile cells in the biofilm reached 105 CFU cm-2 in the presence of fresh milk, and 106 CFU cm-2 in the presence of bulk milk. The genetic diversity analysis showed that Gammaproteobacteria and Bacilli predominated in the biofilms throughout the incubation of both milk samples and these biofilms showed a reduction in diversity over time. The main classes of bacteria found in these biofilms have representatives of great importance since many of them have spoilage potential.
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Affiliation(s)
- G S Oliveira
- Department of Microbiology, Federal University of Viçosa, Viçosa, Brazil
| | - D R G Lopes
- Department of Microbiology, Federal University of Viçosa, Viçosa, Brazil
| | - C Andre
- Department of Microbiology, Federal University of Viçosa, Viçosa, Brazil
| | - C C Silva
- Department of Microbiology, Federal University of Viçosa, Viçosa, Brazil
| | - F Baglinière
- Department of Microbiology, Federal University of Viçosa, Viçosa, Brazil
| | - M C D Vanetti
- Department of Microbiology, Federal University of Viçosa, Viçosa, Brazil
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17
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Oliveira IM, Borges A, Borges F, Simões M. Repurposing ibuprofen to control Staphylococcus aureus biofilms. Eur J Med Chem 2019; 166:197-205. [DOI: 10.1016/j.ejmech.2019.01.046] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2018] [Revised: 01/15/2019] [Accepted: 01/19/2019] [Indexed: 12/21/2022]
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18
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Antunes J, Pereira S, Ribeiro T, Plowman JE, Thomas A, Clerens S, Campos A, Vasconcelos V, Almeida JR. A Multi-Bioassay Integrated Approach to Assess the Antifouling Potential of the Cyanobacterial Metabolites Portoamides. Mar Drugs 2019; 17:E111. [PMID: 30759807 PMCID: PMC6410096 DOI: 10.3390/md17020111] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2018] [Revised: 01/31/2019] [Accepted: 02/08/2019] [Indexed: 02/06/2023] Open
Abstract
The cyclic peptides portoamides produced by the cyanobacterium Phormidium sp. LEGE 05292 were previously isolated and their ability to condition microcommunities by allelopathic effect was described. These interesting bioactive properties are, however, still underexplored as their biotechnological applications may be vast. This study aims to investigate the antifouling potential of portoamides, given that a challenge in the search for new environmentally friendly antifouling products is to find non-toxic natural alternatives with the ability to prevent colonization of different biofouling species, from bacteria to macroinvertebrates. A multi-bioassay approach was applied to assess portoamides antifouling properties, marine ecotoxicity and molecular mode of action. Results showed high effectiveness in the prevention of mussel larvae settlement (EC50 = 3.16 µM), and also bioactivity towards growth and biofilm disruption of marine biofouling bacterial strains, while not showing toxicity towards both target and non-target species. Antifouling molecular targets in mussel larvae include energy metabolism modifications (failure in proton-transporting ATPases activity), structural alterations of the gills and protein and gene regulatory mechanisms. Overall, portoamides reveal a broad-spectrum bioactivity towards diverse biofouling species, including a non-toxic and reversible effect towards mussel larvae, showing potential to be incorporated as an active ingredient in antifouling coatings.
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Affiliation(s)
- Jorge Antunes
- Centro Interdisciplinar de Investigação Marinha e Ambiental (CIIMAR), Universidade do Porto, Terminal de Cruzeiros do Porto de Leixões, Av. General Norton de Matos s/n, 4450-208 Matosinhos, Portugal.
- Departamento de Biologia, Faculdade de Ciências, Universidade do Porto, Rua do Campo Alegre, P 4069-007 Porto, Portugal.
| | - Sandra Pereira
- Centro Interdisciplinar de Investigação Marinha e Ambiental (CIIMAR), Universidade do Porto, Terminal de Cruzeiros do Porto de Leixões, Av. General Norton de Matos s/n, 4450-208 Matosinhos, Portugal.
| | - Tiago Ribeiro
- Centro Interdisciplinar de Investigação Marinha e Ambiental (CIIMAR), Universidade do Porto, Terminal de Cruzeiros do Porto de Leixões, Av. General Norton de Matos s/n, 4450-208 Matosinhos, Portugal.
| | | | - Ancy Thomas
- AgResearch Ltd., 1365 Springs Rd, Lincoln 7674, New Zealand.
| | - Stefan Clerens
- AgResearch Ltd., 1365 Springs Rd, Lincoln 7674, New Zealand.
- Biomolecular Interaction Centre, University of Canterbury, Christchurch P 8140, New Zealand.
- Riddet Institute, Massey University, Palmerston North P 4442, New Zealand.
| | - Alexandre Campos
- Centro Interdisciplinar de Investigação Marinha e Ambiental (CIIMAR), Universidade do Porto, Terminal de Cruzeiros do Porto de Leixões, Av. General Norton de Matos s/n, 4450-208 Matosinhos, Portugal.
| | - Vitor Vasconcelos
- Centro Interdisciplinar de Investigação Marinha e Ambiental (CIIMAR), Universidade do Porto, Terminal de Cruzeiros do Porto de Leixões, Av. General Norton de Matos s/n, 4450-208 Matosinhos, Portugal.
- Departamento de Biologia, Faculdade de Ciências, Universidade do Porto, Rua do Campo Alegre, P 4069-007 Porto, Portugal.
| | - Joana R Almeida
- Centro Interdisciplinar de Investigação Marinha e Ambiental (CIIMAR), Universidade do Porto, Terminal de Cruzeiros do Porto de Leixões, Av. General Norton de Matos s/n, 4450-208 Matosinhos, Portugal.
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19
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Almeida JR, Moreira J, Pereira D, Pereira S, Antunes J, Palmeira A, Vasconcelos V, Pinto M, Correia-da-Silva M, Cidade H. Potential of synthetic chalcone derivatives to prevent marine biofouling. THE SCIENCE OF THE TOTAL ENVIRONMENT 2018; 643:98-106. [PMID: 29936172 DOI: 10.1016/j.scitotenv.2018.06.169] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/15/2018] [Revised: 06/06/2018] [Accepted: 06/13/2018] [Indexed: 06/08/2023]
Abstract
Biofouling represents a major economic, environmental and health concern for which new eco-friendly solutions are needed. International legislation has restricted the use of biocidal-based antifouling coatings, and increasing efforts have been applied in the search for environmentally friendly antifouling agents. This research work deals with the assessment of the interest of a series of synthetic chalcone derivatives for antifouling applications. Sixteen chalcone derivatives were synthesized with moderate yields (38-85%). Antifouling bioactivity of these compounds was assessed at different levels of biological organization using both anti-macrofouling and anti-microfouling bioassays, namely an anti-settlement assay using mussel (Mytilus galloprovincialis) larvae, as well as marine bacteria and microalgal biofilms growth inhibition bioassays. Results showed that three compounds (11, 12, and 16) were particularly active against the settlement of mussel larvae (EC50 7.24-34.63 μM), being compounds 12 and 16 also able to inhibit the growth of microfouling species (EC50 4.09-20.31 μM). Moreover, the most potent compounds 12 and 16 were found to be non-toxic to the non-target species Artemia salina (<10% mortality at 25 μM). A quantitative structure-activity relationship model predicted that descriptors describing the ability of molecules to form hydrogen bonds and encoding the shape, branching ratio and constitutional diversity of the molecule were implied in the antifouling activity against the settlement of mussel larvae. This work elucidates for the first time the relevance of synthesizing chalcone derivatives to generate new non-toxic products to prevent marine biofouling.
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Affiliation(s)
- J R Almeida
- Centro Interdisciplinar de Investigação Marinha e Ambiental (CIIMAR), Universidade do Porto, Terminal de Cruzeiros do Porto de Leixões, Av. General Norton de Matos s/n, 4450-208 Matosinhos, Portugal
| | - J Moreira
- Laboratório de Química Orgânica e Farmacêutica, Departamento de Ciências Químicas, Faculdade de Farmácia, Universidade do Porto, Rua de Jorge Viterbo Ferreira 228, 4050-313 Porto, Portugal
| | - D Pereira
- Laboratório de Química Orgânica e Farmacêutica, Departamento de Ciências Químicas, Faculdade de Farmácia, Universidade do Porto, Rua de Jorge Viterbo Ferreira 228, 4050-313 Porto, Portugal
| | - S Pereira
- Centro Interdisciplinar de Investigação Marinha e Ambiental (CIIMAR), Universidade do Porto, Terminal de Cruzeiros do Porto de Leixões, Av. General Norton de Matos s/n, 4450-208 Matosinhos, Portugal
| | - J Antunes
- Centro Interdisciplinar de Investigação Marinha e Ambiental (CIIMAR), Universidade do Porto, Terminal de Cruzeiros do Porto de Leixões, Av. General Norton de Matos s/n, 4450-208 Matosinhos, Portugal; Departamento de Biologia, Faculdade de Ciências, Universidade do Porto, Rua do Campo Alegre, P 4069-007 Porto, Portugal
| | - A Palmeira
- Centro Interdisciplinar de Investigação Marinha e Ambiental (CIIMAR), Universidade do Porto, Terminal de Cruzeiros do Porto de Leixões, Av. General Norton de Matos s/n, 4450-208 Matosinhos, Portugal; Laboratório de Química Orgânica e Farmacêutica, Departamento de Ciências Químicas, Faculdade de Farmácia, Universidade do Porto, Rua de Jorge Viterbo Ferreira 228, 4050-313 Porto, Portugal
| | - V Vasconcelos
- Centro Interdisciplinar de Investigação Marinha e Ambiental (CIIMAR), Universidade do Porto, Terminal de Cruzeiros do Porto de Leixões, Av. General Norton de Matos s/n, 4450-208 Matosinhos, Portugal; Departamento de Biologia, Faculdade de Ciências, Universidade do Porto, Rua do Campo Alegre, P 4069-007 Porto, Portugal
| | - M Pinto
- Centro Interdisciplinar de Investigação Marinha e Ambiental (CIIMAR), Universidade do Porto, Terminal de Cruzeiros do Porto de Leixões, Av. General Norton de Matos s/n, 4450-208 Matosinhos, Portugal; Laboratório de Química Orgânica e Farmacêutica, Departamento de Ciências Químicas, Faculdade de Farmácia, Universidade do Porto, Rua de Jorge Viterbo Ferreira 228, 4050-313 Porto, Portugal
| | - M Correia-da-Silva
- Centro Interdisciplinar de Investigação Marinha e Ambiental (CIIMAR), Universidade do Porto, Terminal de Cruzeiros do Porto de Leixões, Av. General Norton de Matos s/n, 4450-208 Matosinhos, Portugal; Laboratório de Química Orgânica e Farmacêutica, Departamento de Ciências Químicas, Faculdade de Farmácia, Universidade do Porto, Rua de Jorge Viterbo Ferreira 228, 4050-313 Porto, Portugal.
| | - H Cidade
- Centro Interdisciplinar de Investigação Marinha e Ambiental (CIIMAR), Universidade do Porto, Terminal de Cruzeiros do Porto de Leixões, Av. General Norton de Matos s/n, 4450-208 Matosinhos, Portugal; Laboratório de Química Orgânica e Farmacêutica, Departamento de Ciências Químicas, Faculdade de Farmácia, Universidade do Porto, Rua de Jorge Viterbo Ferreira 228, 4050-313 Porto, Portugal
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Zhang X, Wang L, Mu H, Wang D, Yu Y. Synergistic antibacterial effects of Buddleja albiflora metabolites with antibiotics against Listeria monocytogenes. Lett Appl Microbiol 2018; 68:38-47. [PMID: 30298931 DOI: 10.1111/lam.13084] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2018] [Revised: 08/24/2018] [Accepted: 09/28/2018] [Indexed: 11/30/2022]
Abstract
Some plants of Buddleja genus possessed antimicrobial activity. In this study, the antibacterial activities of nine compounds from Buddleja albiflora were evaluated against Listeria monocytogenes, Staphyloccocus aureus, Escherichia coli and Pseudomonas aeruginosa, either alone or in combination with Erythromycin (Ery), Gentamicin (Gen) and Ampicillin (Amp). Checkerboard assay demonstrated that Kumatakenin elicited synergistic effects with all three antibiotics, and chrysin displayed synergistic effect with Ery against L. monocytogenes. Further experiments showed that the synergy effect was sufficient to eradicate biofilms formed by L. monocytogenes. Thus, our data highlighted that the combinations of secondary metabolites from B. albiflora and specific antibiotics were useful for the treatment of pathogens, which might help prevent the spread of antibiotic resistance through improving antibiotic effectiveness. SIGNIFICANCE AND IMPACT OF THE STUDY: This study measured the antibacterial activity of the metabolites from Buddleja albiflora and the synergistic interactions with antibiotics against Listeria monocytogenes on planktonic cells as well as on biofilms. The results of this study provide valuable evidence that Kumatakenin/antibiotic combination can be considered as a promising antimicrobial agent for the treatment of pathogens, which subsequently help prevent the spread of antibiotic resistance through improving antibiotic effectiveness.
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Affiliation(s)
- X Zhang
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University, Yangling, China
| | - L Wang
- Key Laboratory of Chemical Biology of Natural Products (Ministry of Education), College of Pharmaceutical Sciences, Shandong University, Jinan, China
| | - H Mu
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University, Yangling, China
| | - D Wang
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University, Yangling, China
| | - Y Yu
- College of Horticulture, Northwest A&F University, Yangling, China
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Adnan M, Alshammari E, Patel M, Amir Ashraf S, Khan S, Hadi S. Significance and potential of marine microbial natural bioactive compounds against biofilms/biofouling: necessity for green chemistry. PeerJ 2018; 6:e5049. [PMID: 29967730 PMCID: PMC6026461 DOI: 10.7717/peerj.5049] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2018] [Accepted: 06/01/2018] [Indexed: 12/17/2022] Open
Abstract
Natural products from the unique environments of sea water and oceans represent a largely unfamiliar source for isolation of new microbes, which are potent producers of secondary bioactive metabolites. These unique life-forms from the marine ecosphere have served as an important source of drugs since ancient times and still offer a valuable resource for novel findings by providing remedial treatments. Therefore, it can be expected that many naturally bioactive marine microbial compounds with novel structures and bioactivities against those from terrestrial environments may be found among marine metabolites. Biofilms in aquatic environment possess serious problems to naval forces and oceanic industries around the globe. Current anti-biofilm or anti-biofouling technology is based on the use of toxic substances that can be harmful to their surrounding natural locales. Comprehensive research has been done to examine the bioactive potential of marine microbes. Results are remarkably varied and dynamic, but there is an urgent need for bioactive compounds with environmentally friendly or "green" chemical activities. Marine microbes have the potential as upcoming and promising source of non-toxic compounds with sustainable anti-biofouling/anti-biofilm properties as they can produce substances that can inhibit not only the chemical components required for biofilm production but also the attachment, microorganism growth, and/or cell-cell communication.
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Affiliation(s)
- Mohd Adnan
- Department of Clinical Laboratory Sciences, College of Applied Medical Sciences, University of Hail, Hail, Saudi Arabia
| | - Eyad Alshammari
- Department of Clinical Nutrition, College of Applied Medical Sciences, University of Hail, Hail, Saudi Arabia
| | - Mitesh Patel
- Department of Biosciences, Bapalal Vaidhya Botanical Research Centre, Veer Narmad South Gujarat University, Surat, India
| | - Syed Amir Ashraf
- Department of Clinical Nutrition, College of Applied Medical Sciences, University of Hail, Hail, Saudi Arabia
| | - Saif Khan
- Department of Clinical Laboratory Sciences, College of Applied Medical Sciences, University of Hail, Hail, Saudi Arabia
| | - Sibte Hadi
- School of Forensic and Applied Sciences, University of Central Lancashire, Preston, UK
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Salta M, Dennington SP, Wharton JA. Biofilm Inhibition by Novel Natural Product- and Biocide-Containing Coatings Using High-Throughput Screening. Int J Mol Sci 2018; 19:ijms19051434. [PMID: 29748514 PMCID: PMC5983801 DOI: 10.3390/ijms19051434] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2018] [Revised: 05/02/2018] [Accepted: 05/03/2018] [Indexed: 01/31/2023] Open
Abstract
The use of natural products (NPs) as possible alternative biocidal compounds for use in antifouling coatings has been the focus of research over the past decades. Despite the importance of this field, the efficacy of a given NP against biofilm (mainly bacteria and diatoms) formation is tested with the NP being in solution, while almost no studies test the effect of an NP once incorporated into a coating system. The development of a novel bioassay to assess the activity of NP-containing and biocide-containing coatings against marine biofilm formation has been achieved using a high-throughput microplate reader and highly sensitive confocal laser scanning microscopy (CLSM), as well as nucleic acid staining. Juglone, an isolated NP that has previously shown efficacy against bacterial attachment, was incorporated into a simple coating matrix. Biofilm formation over 48 h was assessed and compared against coatings containing the NP and the commonly used booster biocide, cuprous oxide. Leaching of the NP from the coating was quantified at two time points, 24 h and 48 h, showing evidence of both juglone and cuprous oxide being released. Results from the microplate reader showed that the NP coatings exhibited antifouling efficacy, significantly inhibiting biofilm formation when compared to the control coatings, while NP coatings and the cuprous oxide coatings performed equally well. CLSM results and COMSTAT analysis on biofilm 3D morphology showed comparable results when the NP coatings were tested against the controls, with higher biofilm biovolume and maximum thickness being found on the controls. This new method proved to be repeatable and insightful and we believe it is applicable in antifouling and other numerous applications where interactions between biofilm formation and surfaces is of interest.
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Affiliation(s)
- Maria Salta
- Faculty of Sciences, School of Biological Sciences, University of Portsmouth, Portsmouth PO1 2DY, UK.
| | - Simon P Dennington
- Faculty of Engineering and the Environment, National Centre for Advanced Tribology at Southampton (nCATS), University of Southampton, Highfield, Southampton SO17 1BJ, UK.
| | - Julian A Wharton
- Faculty of Engineering and the Environment, National Centre for Advanced Tribology at Southampton (nCATS), University of Southampton, Highfield, Southampton SO17 1BJ, UK.
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23
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Ding W, Ma C, Zhang W, Chiang H, Tam C, Xu Y, Zhang G, Qian PY. Anti-biofilm effect of a butenolide/polymer coating and metatranscriptomic analyses. BIOFOULING 2018; 34:111-122. [PMID: 29334812 DOI: 10.1080/08927014.2017.1409891] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/10/2017] [Accepted: 11/20/2017] [Indexed: 06/07/2023]
Abstract
Butenolide is an environmentally friendly antifouling natural product, but its efficiency and mechanism in preventing biofilm formation have not been examined. Furthermore, controlling the release of butenolide from paints into seawater is technically challenging. A coating was developed by mixing butenolide with a biodegradable polymer, poly (ε-caprolactone)-based polyurethane, and a one-month in situ anti-biofilm test was conducted in a subtidal area. The constant release of butenolide from the surface suggested that its release was well controlled. Direct observation and confocal microscope investigation indicated that the coating was effective against both biofilm formation and attachment of large fouling organisms. Metatranscriptomic analysis of biofilm samples implied that the coating selectively inhibited the adhesion of microbes from a variety of phyla and targeted particular functional pathways including energy metabolism, drug transport and toxin release. These integrated analyses demonstrated the potential application of this butenolide/polymer coating as an anti-biofilm material.
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Key Words
- ABC transporters, ATP-binding cassette transporters
- Anti-biofilm
- CLSM, confocal laser scanning microscopy
- COGs, Clusters of Orthologous Groups
- DBTDL, dibutyltin dilaurate
- DCOIT, 4,5-dichloro-2-n-octyl-4-isothiazolin-3-one
- FITC, fluorescein isothiocyanate
- HPLC, high performance liquid chromatography
- PCA, principal component analysis
- RTX, repeats-in-toxin
- butenolide
- butenolide, 5-octylfuran-2(5H)-one
- metatranscriptomics
- polymer coating
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Affiliation(s)
- Wei Ding
- a Division of Life Science , Hong Kong University of Science and Technology , Hong Kong , PR China
| | - Chunfeng Ma
- a Division of Life Science , Hong Kong University of Science and Technology , Hong Kong , PR China
- b Faculty of Materials Science and Engineering , South China University of Technology , Guangzhou , PR China
| | - Weipeng Zhang
- a Division of Life Science , Hong Kong University of Science and Technology , Hong Kong , PR China
| | - Hoyin Chiang
- a Division of Life Science , Hong Kong University of Science and Technology , Hong Kong , PR China
| | - Chunkit Tam
- a Division of Life Science , Hong Kong University of Science and Technology , Hong Kong , PR China
| | - Ying Xu
- a Division of Life Science , Hong Kong University of Science and Technology , Hong Kong , PR China
- c College of Life Sciences and Oceanography , Shenzhen University , Shenzhen , PR China
| | - Guangzhao Zhang
- b Faculty of Materials Science and Engineering , South China University of Technology , Guangzhou , PR China
| | - Pei-Yuan Qian
- a Division of Life Science , Hong Kong University of Science and Technology , Hong Kong , PR China
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24
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Saha M, Goecke F, Bhadury P. Minireview: algal natural compounds and extracts as antifoulants. JOURNAL OF APPLIED PHYCOLOGY 2017; 30:1859-1874. [PMID: 29899600 PMCID: PMC5982446 DOI: 10.1007/s10811-017-1322-0] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/11/2017] [Revised: 10/17/2017] [Accepted: 10/17/2017] [Indexed: 05/02/2023]
Abstract
Marine biofouling is a paramount phenomenon in the marine environment and causes serious problems to maritime industries worldwide. Marine algae are known to produce a wide variety of chemical compounds with antibacterial, antifungal, antialgal, and anti-macrofouling properties, inhibiting the settlement and growth of other marine fouling organisms. Significant investigations and progress have been made in this field in the last two decades and several antifouling extracts and compounds have been isolated from micro- and macroalgae. In this minireview, we have summarized and evaluated antifouling compounds isolated and identified from macroalgae and microalgae between January 2010 and June 2016. Future directions for their commercialization through metabolic engineering and industrial scale up have been discussed. Upon comparing biogeographical regions, investigations from Southeast Asian waters were found to be rather scarce. Thus, we have also discussed the need to conduct more chemical ecology based research in relatively less explored areas with high algal biodiversity like Southeast Asia.
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Affiliation(s)
- Mahasweta Saha
- Benthic Ecology, Helmholtz Center for Ocean Research, Düsternbrooker weg, 24105 Kiel, Germany
- Present Address: School of Biological Science, University of Essex, Colchester, CO 43 SQ, UK
| | - Franz Goecke
- Department of Plant and Environmental Science (IPV), Norwegian University of Life Sciences (NMBU), Ås, Norway
| | - Punyasloke Bhadury
- Integrative Taxonomy and Microbial Ecology Research Group, Department of Biological Sciences, Indian Institute of Science Education and Research Kolkata, Mohanpur, Nadia, West Bengal 741246 India
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25
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Chen L, Qian PY. Review on Molecular Mechanisms of Antifouling Compounds: An Update since 2012. Mar Drugs 2017; 15:md15090264. [PMID: 28846624 PMCID: PMC5618403 DOI: 10.3390/md15090264] [Citation(s) in RCA: 45] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2017] [Revised: 07/23/2017] [Accepted: 07/26/2017] [Indexed: 11/25/2022] Open
Abstract
Better understanding of the mechanisms of antifouling compounds is recognized to be of high value in establishing sensitive biomarkers, allowing the targeted optimization of antifouling compounds and guaranteeing environmental safety. Despite vigorous efforts to find new antifouling compounds, information about the mechanisms of antifouling is still scarce. This review summarizes the progress into understanding the molecular mechanisms underlying antifouling activity since 2012. Non-toxic mechanisms aimed at specific targets, including inhibitors of transmembrane transport, quorum sensing inhibitors, neurotransmission blockers, adhesive production/release inhibitors and enzyme/protein inhibitors, are put forward for natural antifouling products or shelf-stable chemicals. Several molecular targets show good potential for use as biomarkers in future mechanistic screening, such as acetylcholine esterase for neurotransmission, phenoloxidase/tyrosinase for the formation of adhesive plaques, N-acyl homoserine lactone for quorum sensing and intracellular Ca2+ levels as second messenger. The studies on overall responses to challenges by antifoulants can be categorized as general targets, including protein expression/metabolic activity regulators, oxidative stress inducers, neurotransmission blockers, surface modifiers, biofilm inhibitors, adhesive production/release inhibitors and toxic killing. Given the current situation and the knowledge gaps regarding the development of alternative antifoulants, a basic workflow is proposed that covers the indispensable steps, including preliminary mechanism- or bioassay-guided screening, evaluation of environmental risks, field antifouling performance, clarification of antifouling mechanisms and the establishment of sensitive biomarkers, which are combined to construct a positive feedback loop.
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Affiliation(s)
- Lianguo Chen
- Division of Life Science, Hong Kong University of Science and Technology, Clear Water Bay, Hong Kong, China.
- State Key Laboratory in Marine Pollution, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong, China.
| | - Pei-Yuan Qian
- Division of Life Science, Hong Kong University of Science and Technology, Clear Water Bay, Hong Kong, China.
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26
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Borges A, Lopez-Romero JC, Oliveira D, Giaouris E, Simões M. Prevention, removal and inactivation of Escherichia coli and Staphylococcus aureus biofilms using selected monoterpenes of essential oils. J Appl Microbiol 2017; 123:104-115. [PMID: 28497526 DOI: 10.1111/jam.13490] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2017] [Revised: 04/27/2017] [Accepted: 05/06/2017] [Indexed: 02/04/2023]
Abstract
AIMS The aim of this study was to investigate the antibiofilm potential of five essential oil (EO) components with cyclic (sabinene-SAB, carveol-C1, carvone-C2) and acyclic (citronellol-C3 and citronellal-C4) structures against Escherichia coli and Staphylococcus aureus. METHODS AND RESULTS The selected EO components prevented biofilm set-up, with C3 and C4 causing remarkable effects. When applied against pre-established biofilms, they promoted high biomass removal and inactivation of biofilm cells. Moreover, no viable E. coli biofilm cells were detected after exposure to SAB at 5 × MIC and 10 × MIC, and a significant viability decrease was observed for both bacteria with the other EO components. SAB, C3 and C4 caused the most prominent effects apparently due to their octanol-water partition coefficient (Po/w), the number of rotatable bonds (n-ROTB) and the free hydroxyl groups. CONCLUSIONS The overall results demonstrated that the selected EO components, particularly SAB, C3 and C4 are of interest as new lead molecules to both prevent biofilm set-up and to control pre-established biofilms of E. coli and S. aureus. SIGNIFICANCE AND IMPACT OF THE STUDY The tested EO components exhibited prominent antibiofilm properties against E. coli and S. aureus providing a novel and effective alternative/complementary approach to counteract chronic infections and the transmission of diseases in clinical settings.
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Affiliation(s)
- A Borges
- LEPABE, Department of Chemical Engineering, Faculty of Engineering, University of Porto, Porto, Portugal
| | - J C Lopez-Romero
- CIAD, Research Center for Food and Development, Hermosillo, Sonora, Mexico
| | - D Oliveira
- LEPABE, Department of Chemical Engineering, Faculty of Engineering, University of Porto, Porto, Portugal
| | - E Giaouris
- Department of Food Science and Nutrition, Faculty of the Environment, University of the Aegean, Myrina, Lemnos Island, Greece
| | - M Simões
- LEPABE, Department of Chemical Engineering, Faculty of Engineering, University of Porto, Porto, Portugal
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27
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Salem WM, Shibat El-Hamed DMW, Sayed WF, Elamary RB. Alterations in virulence and antibiotic resistant genes of multidrug-resistant Salmonella serovars isolated from poultry: The bactericidal efficacy of Allium sativum. Microb Pathog 2017; 108:91-100. [PMID: 28479511 DOI: 10.1016/j.micpath.2017.05.008] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2017] [Revised: 04/27/2017] [Accepted: 05/02/2017] [Indexed: 12/13/2022]
Affiliation(s)
- W M Salem
- South Valley University, Faculty of Science, Botany Department, 83523, Qena, Egypt.
| | | | - W F Sayed
- South Valley University, Faculty of Science, Botany Department, 83523, Qena, Egypt
| | - R B Elamary
- South Valley University, Faculty of Science, Botany Department, 83523, Qena, Egypt
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28
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Moodie LWK, Trepos R, Cervin G, Larsen L, Larsen DS, Pavia H, Hellio C, Cahill P, Svenson J. Probing the Structure-Activity Relationship of the Natural Antifouling Agent Polygodial against both Micro- and Macrofoulers by Semisynthetic Modification. JOURNAL OF NATURAL PRODUCTS 2017; 80:515-525. [PMID: 28170258 DOI: 10.1021/acs.jnatprod.6b01056] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
The current study represents the first comprehensive investigation into the general antifouling activities of the natural drimane sesquiterpene polygodial. Previous studies have highlighted a high antifouling effect toward macrofoulers, such as ascidians, tubeworms, and mussels, but no reports about the general antifouling effect of polygodial have been communicated before. To probe the structural and chemical basis for antifouling activity, a library of 11 polygodial analogues was prepared by semisynthesis. The library was designed to yield derivatives with ranging polarities and the ability to engage in both covalent and noncovalent interactions, while still remaining within the drimane sesquiterpene scaffold. The prepared compounds were screened against 14 relevant marine micro- and macrofouling species. Several of the polygodial analogues displayed inhibitory activities at sub-microgram/mL concentrations. These antifouling effects were most pronounced against the macrofouling ascidian Ciona savignyi and the barnacle Balanus improvisus, with inhibitory activities observed for selected compounds comparable or superior to several commercial antifouling products. The inhibitory activity against the microfouling bacteria and microalgae was reversible and significantly less pronounced than for the macrofoulers. This study illustrates that the macro- and microfoulers are targeted by the compounds via different mechanisms.
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Affiliation(s)
- Lindon W K Moodie
- Department of Chemistry, UiT The Arctic University of Norway , Breivika, N-9037, Tromsø, Norway
| | - Rozenn Trepos
- Biodimar LEMAR UMR 6539, Université de Bretagne Occidentale , 6 Avenue le Gorgeu, 29200 Brest, France
| | - Gunnar Cervin
- Department of Marine Sciences - Tjärnö, University of Gothenburg , SE-452 96 Strömstad, Sweden
| | - Lesley Larsen
- Department of Chemistry, University of Otago , P.O. Box 56, Dunedin, New Zealand
| | - David S Larsen
- Department of Chemistry, University of Otago , P.O. Box 56, Dunedin, New Zealand
| | - Henrik Pavia
- Department of Marine Sciences - Tjärnö, University of Gothenburg , SE-452 96 Strömstad, Sweden
| | - Claire Hellio
- Biodimar LEMAR UMR 6539, Université de Bretagne Occidentale , 6 Avenue le Gorgeu, 29200 Brest, France
| | - Patrick Cahill
- Cawthron Institute , 98 Halifax Street East, Nelson 7010, New Zealand
| | - Johan Svenson
- Department of Chemistry, UiT The Arctic University of Norway , Breivika, N-9037, Tromsø, Norway
- Department of Chemistry, Material and Surfaces, SP Technical Research Institute of Sweden , Box 857, SE-501 15 Borås, Sweden
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29
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Yang X, Sha K, Xu G, Tian H, Wang X, Chen S, Wang Y, Li J, Chen J, Huang N. Subinhibitory Concentrations of Allicin Decrease Uropathogenic Escherichia coli (UPEC) Biofilm Formation, Adhesion Ability, and Swimming Motility. Int J Mol Sci 2016; 17:ijms17070979. [PMID: 27367677 PMCID: PMC4964365 DOI: 10.3390/ijms17070979] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2016] [Revised: 06/08/2016] [Accepted: 06/15/2016] [Indexed: 11/16/2022] Open
Abstract
Uropathogenic Escherichia coli (UPEC) biofilm formation enables the organism to avoid the host immune system, resist antibiotics, and provide a reservoir for persistent infection. Once the biofilm is established, eradication of the infection becomes difficult. Therefore, strategies against UPEC biofilm are urgently required. In this study, we investigated the effect of allicin, isolated from garlic essential oil, on UPEC CFT073 and J96 biofilm formation and dispersal, along with its effect on UPEC adhesion ability and swimming motility. Sub-inhibitory concentrations (sub-MICs) of allicin decreased UPEC biofilm formation and affected its architecture. Allicin was also capable of dispersing biofilm. Furthermore, allicin decreased the bacterial adhesion ability and swimming motility, which are important for biofilm formation. Real-time quantitative polymerase chain reaction (RT-qPCR) revealed that allicin decreased the expression of UPEC type 1 fimbriae adhesin gene fimH. Docking studies suggested that allicin was located within the binding pocket of heptyl α-d-mannopyrannoside in FimH and formed hydrogen bonds with Phe1 and Asn135. In addition, allicin decreased the expression of the two-component regulatory systems (TCSs) cognate response regulator gene uvrY and increased the expression of the RNA binding global regulatory protein gene csrA of UPEC CFT073, which is associated with UPEC biofilm. The findings suggest that sub-MICs of allicin are capable of affecting UPEC biofilm formation and dispersal, and decreasing UPEC adhesion ability and swimming motility.
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Affiliation(s)
- Xiaolong Yang
- Research Unit of Infection and Immunity, Department of Pathophysiology, West China School of Preclinical & Forensic Medicine, Sichuan University, Chengdu 610000, Sichuan, China.
| | - Kaihui Sha
- Research Unit of Infection and Immunity, Department of Pathophysiology, West China School of Preclinical & Forensic Medicine, Sichuan University, Chengdu 610000, Sichuan, China.
| | - Guangya Xu
- Research Unit of Infection and Immunity, Department of Pathophysiology, West China School of Preclinical & Forensic Medicine, Sichuan University, Chengdu 610000, Sichuan, China.
| | - Hanwen Tian
- Research Unit of Infection and Immunity, Department of Pathophysiology, West China School of Preclinical & Forensic Medicine, Sichuan University, Chengdu 610000, Sichuan, China.
| | - Xiaoying Wang
- Research Unit of Infection and Immunity, Department of Pathophysiology, West China School of Preclinical & Forensic Medicine, Sichuan University, Chengdu 610000, Sichuan, China.
| | - Shanze Chen
- Research Unit of Infection and Immunity, Department of Pathophysiology, West China School of Preclinical & Forensic Medicine, Sichuan University, Chengdu 610000, Sichuan, China.
| | - Yi Wang
- Research Unit of Infection and Immunity, Department of Pathophysiology, West China School of Preclinical & Forensic Medicine, Sichuan University, Chengdu 610000, Sichuan, China.
| | - Jingyu Li
- Research Unit of Infection and Immunity, Department of Pathophysiology, West China School of Preclinical & Forensic Medicine, Sichuan University, Chengdu 610000, Sichuan, China.
| | - Junli Chen
- Research Unit of Infection and Immunity, Department of Pathophysiology, West China School of Preclinical & Forensic Medicine, Sichuan University, Chengdu 610000, Sichuan, China.
| | - Ning Huang
- Research Unit of Infection and Immunity, Department of Pathophysiology, West China School of Preclinical & Forensic Medicine, Sichuan University, Chengdu 610000, Sichuan, China.
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Luzina OA, Salakhutdinov NF. Biological activity of usnic acid and its derivatives: Part 1. Activity against unicellular organisms. RUSSIAN JOURNAL OF BIOORGANIC CHEMISTRY 2016. [DOI: 10.1134/s1068162016020084] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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31
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Jamil B, Habib H, Abbasi SA, Ihsan A, Nasir H, Imran M. Development of Cefotaxime Impregnated Chitosan as Nano-antibiotics: De Novo Strategy to Combat Biofilm Forming Multi-drug Resistant Pathogens. Front Microbiol 2016; 7:330. [PMID: 27047457 PMCID: PMC4797315 DOI: 10.3389/fmicb.2016.00330] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2015] [Accepted: 03/02/2016] [Indexed: 01/28/2023] Open
Abstract
Frequent incidents of antibiotic-resistant biofilm forming pathogens in community-associated and hospital-acquired infections have become a global concern owing to failure of conventional therapies. Nano-antibiotics (NABs) are de novo tools to overcome the multi-drug resistant mechanisms employed by the superbugs. Inhibition of biofilm formation is one of those strategies to curb multi drug resistance phenomenon. In the current study, the anti-biofilm and antibacterial potential of newly synthesized cefotaxime loaded chitosan based NABs have been investigated. Both bare and cefotaxime loaded NABs were prepared by ionotropic gelation method. They were found carrying positive zeta potential of more than +50 mV, indicating highly stable nano-dispersion. Moreover, microscopic studies revealed their size as less than 100 nm. NABs were tested against clinical isolates of multi drug resistant Klebsiella pneumoniae, Pseudomonas aeruginosa, Escherichia coli, and methicillin resistant Staphylococcus aureus and wherein they demonstrated broad-spectrum anti-biofilm and anti-pathogenic activity. Thus, in vitro synergistic action of cephalosporin drugs and chitosan polymer at nano-scale in contrast to free antibiotics can be an improved broad-spectrum strategy to thwart resistance mechanisms in both Gram-positive and Gram-negative resistant pathogens.
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Affiliation(s)
- Bushra Jamil
- Microbiology and Public Health Group, Department of Biosciences, COMSATS Institute of Information Technology Islamabad, Pakistan
| | - Huma Habib
- Center for Micro and Nano Devices, COMSATS Institute of Information Technology Islamabad, Pakistan
| | - Shahid A Abbasi
- Department of Pathology, Al-Sayed Hospital Rawalpindi, Pakistan
| | - Ayesha Ihsan
- Industrial Biotechnology Division, National Institute of Biotechnology and Genetic Engineering Faisalabad, Pakistan
| | - Habib Nasir
- School of Natural Sciences, National University of Sciences and Technology Islamabad, Pakistan
| | - Muhammad Imran
- Microbiology and Public Health Group, Department of Biosciences, COMSATS Institute of Information Technology Islamabad, Pakistan
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32
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Pérez MJ, Falqué E, Domínguez H. Antimicrobial Action of Compounds from Marine Seaweed. Mar Drugs 2016; 14:E52. [PMID: 27005637 PMCID: PMC4820306 DOI: 10.3390/md14030052] [Citation(s) in RCA: 227] [Impact Index Per Article: 28.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2015] [Revised: 01/18/2016] [Accepted: 02/25/2016] [Indexed: 12/12/2022] Open
Abstract
Seaweed produces metabolites aiding in the protection against different environmental stresses. These compounds show antiviral, antiprotozoal, antifungal, and antibacterial properties. Macroalgae can be cultured in high volumes and would represent an attractive source of potential compounds useful for unconventional drugs able to control new diseases or multiresistant strains of pathogenic microorganisms. The substances isolated from green, brown and red algae showing potent antimicrobial activity belong to polysaccharides, fatty acids, phlorotannins, pigments, lectins, alkaloids, terpenoids and halogenated compounds. This review presents the major compounds found in macroalga showing antimicrobial activities and their most promising applications.
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Affiliation(s)
- María José Pérez
- Departamento de Biología Funcional y Ciencias de la Salud, Facultad de Ciencias, Universidade de Vigo, As Lagoas, Ourense 32004, Spain.
| | - Elena Falqué
- Departamento de Química Analítica, Facultad de Ciencias, Universidade de Vigo, As Lagoas, Ourense 32004, Spain.
| | - Herminia Domínguez
- Departamento de Enxeñería Química, Facultad de Ciencias. Universidade de Vigo, As Lagoas, Ourense 32004, Spain.
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33
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Villa F, Secundo F, Polo A, Cappitelli F. Immobilized Hydrolytic Enzymes Exhibit Antibiofilm Activity Against Escherichia coli at Sub-Lethal Concentrations. Curr Microbiol 2015; 71:106-14. [PMID: 25958074 DOI: 10.1007/s00284-015-0834-6] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2014] [Accepted: 04/06/2015] [Indexed: 11/30/2022]
Abstract
The effects of two commercially available immobilized enzymes (namely the glycosidase pectinase and the protease subtilisin A) at sub-lethal concentrations were investigated in terms of their influence on biofilm genesis, on the composition of the biofilm matrix, and their antibiotic synergy against Escherichia coli biofilm, used as a model system of bacterial biofilms. The best antibiofilm performance of solid-supported hydrolases was obtained at the surface concentration of 0.022 and 0.095 U/cm(2) with a reduction of 1.2 and 2.3 log CFU/biofilm for pectinase and subtilisin, respectively. At these enzyme surface concentrations, the biocatalysts affected the structural composition of the biofilm matrix, impacting biofilm thickness. Finally, the immobilized hydrolases enhanced biofilm sensitivity to a clinically relevant concentration of the antibiotic ampicillin. At the final antibiotic concentration of 0.1 mg/ml, a reduction of 2 and 3.5 log10 units in presence of 0.022 Upectinase/cm(2) and 0.095 Usubtilisin/cm(2) was obtained, respectively, in comparison the antibiotic alone. Immobilized pectinase and subtilisin at sub-lethal concentrations demonstrated a great potential for antibiofilm applications.
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Affiliation(s)
- Federica Villa
- Dipartimento di Scienze per gli Alimenti, la Nutrizione e l'Ambiente, Università degli Studi di Milano, via Celoria 2, 20133, Milan, Italy,
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Prakash S, Ahila N, Sri Ramkumar V, Ravindran J, Kannapiran E. Antimicrofouling properties of chosen marine plants: An eco-friendly approach to restrain marine microfoulers. BIOCATALYSIS AND AGRICULTURAL BIOTECHNOLOGY 2015. [DOI: 10.1016/j.bcab.2014.11.002] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Usnic acid, a lichen secondary metabolite inhibits Group A Streptococcus biofilms. Antonie van Leeuwenhoek 2014; 107:263-72. [PMID: 25367342 DOI: 10.1007/s10482-014-0324-z] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2014] [Accepted: 10/29/2014] [Indexed: 10/24/2022]
Abstract
Group A Streptococci (GAS) are involved in a number of life threatening diseases and biofilm formation by these pathogens are considered as an important virulence determinant as it mediates antibiotic resistance among them. In the present study, we have explored the ability of (+)-usnic acid, a lichen secondary metabolite, as an antibiofilm agent against four serotypes of Streptococcus pyogenes causing pharyngitis. Usnic acid inhibited the biofilms of M serotypes M56, st38, M89 efficiently and the biofilm of M74 to a lesser extent. Confocal imaging of the treated samples showed that usnic acid reduced the biomass of the biofilms when compared to that of the control. Fourier Transfer Infrared (FT-IR) spectroscopy indicated that usnic acid reduced the cellular components (proteins and fatty acids) of the biofilms. Interestingly, the FT-IR spectrum further revealed that usnic acid probably acted upon the fatty acids of the biofilms as evident from the disappearance of a peak at 2,455-2,100 cm(-1) when compared to the control only in serotypes M56, st38 and M89 but not in M74. The present study shows, for the first time, that usnic acid can act as an effective antibiofilm agent against GAS.
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Fletcher MH, Jennings MC, Wuest WM. Draining the moat: disrupting bacterial biofilms with natural products. Tetrahedron 2014. [DOI: 10.1016/j.tet.2014.06.055] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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