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Belfiori B, Riccioni C, Pietrella D, Rubini A, Caceres ME, Pupilli F, Bellucci M, De Marchis F. Vicia ervilia lectin (VEA) has an antibiofilm effect on both Gram-positive and Gram-negative pathogenic bacteria. Arch Microbiol 2024; 206:371. [PMID: 39122975 PMCID: PMC11315768 DOI: 10.1007/s00203-024-04100-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2024] [Revised: 07/23/2024] [Accepted: 08/02/2024] [Indexed: 08/12/2024]
Abstract
Bacterial growing resistance to antibiotics poses a critical threat to global health. This study investigates, for the first time, the antibiofilm properties of Vicia ervilia agglutinin (VEA) from six different V. ervilia accessions against pathogenic bacteria, and the yeast Candida albicans. In the absence of antimicrobial properties, purified VEA significantly inhibited biofilm formation, both in Gram-positive and Gram-negative bacteria, but not in C. albicans. With an inhibitory concentration ranging from 100 to 500 µg/ml, the VEA antibiofilm activity was more relevant against the Gram-positive bacteria Streptococcus aureus and Staphylococcus epidermidis, whose biofilm was reduced up to 50% by VEA purified from accessions #5 and #36. VEA antibiofilm variability between accessions was observed, likely due to co-purified small molecules rather than differences in VEA protein sequences. In conclusion, VEA seed extracts from the accessions with the highest antibiofilm activity could represent a valid approach for the development of an effective antibiofilm agent.
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Affiliation(s)
- Beatrice Belfiori
- Institute of Biosciences and Bioresources (IBBR), National Research Council (CNR), 06128, Perugia, Italy
| | - Claudia Riccioni
- Institute of Biosciences and Bioresources (IBBR), National Research Council (CNR), 06128, Perugia, Italy
| | - Donatella Pietrella
- Department of Medicine and Surgery, University of Perugia, Piazzale S. Gambuli 1, 06132, Perugia, Italy
| | - Andrea Rubini
- Institute of Biosciences and Bioresources (IBBR), National Research Council (CNR), 06128, Perugia, Italy
| | - Maria Eugenia Caceres
- Institute of Biosciences and Bioresources (IBBR), National Research Council (CNR), 06128, Perugia, Italy
| | - Fulvio Pupilli
- Institute of Biosciences and Bioresources (IBBR), National Research Council (CNR), 06128, Perugia, Italy
| | - Michele Bellucci
- Institute of Biosciences and Bioresources (IBBR), National Research Council (CNR), 06128, Perugia, Italy.
| | - Francesca De Marchis
- Institute of Biosciences and Bioresources (IBBR), National Research Council (CNR), 06128, Perugia, Italy.
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D’Aquila P, De Rose E, Sena G, Scorza A, Cretella B, Passarino G, Bellizzi D. Quorum Quenching Approaches against Bacterial-Biofilm-Induced Antibiotic Resistance. Antibiotics (Basel) 2024; 13:619. [PMID: 39061301 PMCID: PMC11273524 DOI: 10.3390/antibiotics13070619] [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: 06/10/2024] [Revised: 06/28/2024] [Accepted: 07/01/2024] [Indexed: 07/28/2024] Open
Abstract
With the widespread phenomenon of antibiotic resistance and the diffusion of multiple drug-resistant bacterial strains, enormous efforts are being conducted to identify suitable alternative agents against pathogenic microorganisms. Since an association between biofilm formation and antibiotic resistance phenotype has been observed, a promising strategy pursued in recent years focuses on controlling and preventing this formation by targeting and inhibiting the Quorum Sensing (QS) system, whose central role in biofilm has been extensively demonstrated. Therefore, the research and development of Quorum Quenching (QQ) compounds, which inhibit QS, has gradually attracted the attention of researchers and has become a new strategy for controlling harmful microorganisms. Among these, a number of both natural and synthetic compounds have been progressively identified as able to interrupt the intercellular communication within a microbial community and the adhesion to a surface, thus disintegrating mature/preformed biofilms. This review describes the role played by QS in the formation of bacterial biofilms and then focuses on the mechanisms of different natural and synthetic QS inhibitors (QSIs) exhibiting promising antibiofilm ability against Gram-positive and Gram-negative bacterial pathogens and on their applications as biocontrol strategies in various fields.
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Affiliation(s)
- Patrizia D’Aquila
- Department of Biology, Ecology and Earth Sciences, University of Calabria, 87036 Rende, Italy; (P.D.); (E.D.R.); (G.S.); (G.P.)
| | - Elisabetta De Rose
- Department of Biology, Ecology and Earth Sciences, University of Calabria, 87036 Rende, Italy; (P.D.); (E.D.R.); (G.S.); (G.P.)
| | - Giada Sena
- Department of Biology, Ecology and Earth Sciences, University of Calabria, 87036 Rende, Italy; (P.D.); (E.D.R.); (G.S.); (G.P.)
| | - Angelo Scorza
- Villa Ermelinda, Progetto Terza Età, 88842 Cutro, Italy; (A.S.); (B.C.)
| | | | - Giuseppe Passarino
- Department of Biology, Ecology and Earth Sciences, University of Calabria, 87036 Rende, Italy; (P.D.); (E.D.R.); (G.S.); (G.P.)
| | - Dina Bellizzi
- Department of Biology, Ecology and Earth Sciences, University of Calabria, 87036 Rende, Italy; (P.D.); (E.D.R.); (G.S.); (G.P.)
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Reise M, Kranz S, Heyder M, Beck J, Roth C, Guellmar A, von Eggeling F, Schubert U, Löffler B, Sigusch B. Salivary Pellicle Formed on Dental Composites Evaluated by Mass Spectrometry-An In Situ Study. Molecules 2023; 28:6804. [PMID: 37836647 PMCID: PMC10574692 DOI: 10.3390/molecules28196804] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2023] [Revised: 09/21/2023] [Accepted: 09/23/2023] [Indexed: 10/15/2023] Open
Abstract
(1) Background: In the oral environment, sound enamel and dental restorative materials are immediately covered by a pellicle layer, which enables bacteria to attach. For the development of new materials with repellent surface functions, information on the formation and maturation of salivary pellicles is crucial. Therefore, the present in situ study aimed to investigate the proteomic profile of salivary pellicles formed on different dental composites. (2) Methods: Light-cured composite and bovine enamel samples (controls) were exposed to the oral cavity for 30, 90, and 120 min. All samples were subjected to optical and mechanical profilometry, as well as SEM surface evaluation. Acquired pellicles and unstimulated whole saliva samples were analyzed by SELDI-TOF-MS. The significance was determined by the generalized estimation equation and the post-hoc bonferroni adjustment. (3) Results: SEM revealed the formation of homogeneous pellicles on all test and control surfaces. Profilometry showed that composite surfaces tend to be of higher roughness compared to enamel. SELDI-TOF-MS detected up to 102 different proteins in the saliva samples and up to 46 proteins in the pellicle. Significant differences among 14 pellicle proteins were found between the composite materials and the controls. (4) Conclusions: Pellicle formation was material- and time-dependent. Proteins differed among the composites and to the control.
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Affiliation(s)
- Markus Reise
- Department of Conservative Dentistry and Periodontology, Jena University Hospital, Friedrich-Schiller University, An der alten Post 4, 07743 Jena, Germany; (M.R.); (M.H.); (J.B.); (A.G.); (B.S.)
| | - Stefan Kranz
- Department of Conservative Dentistry and Periodontology, Jena University Hospital, Friedrich-Schiller University, An der alten Post 4, 07743 Jena, Germany; (M.R.); (M.H.); (J.B.); (A.G.); (B.S.)
| | - Markus Heyder
- Department of Conservative Dentistry and Periodontology, Jena University Hospital, Friedrich-Schiller University, An der alten Post 4, 07743 Jena, Germany; (M.R.); (M.H.); (J.B.); (A.G.); (B.S.)
| | - Julius Beck
- Department of Conservative Dentistry and Periodontology, Jena University Hospital, Friedrich-Schiller University, An der alten Post 4, 07743 Jena, Germany; (M.R.); (M.H.); (J.B.); (A.G.); (B.S.)
| | - Christian Roth
- Department of Conservative Dentistry and Periodontology, Jena University Hospital, Friedrich-Schiller University, An der alten Post 4, 07743 Jena, Germany; (M.R.); (M.H.); (J.B.); (A.G.); (B.S.)
| | - André Guellmar
- Department of Conservative Dentistry and Periodontology, Jena University Hospital, Friedrich-Schiller University, An der alten Post 4, 07743 Jena, Germany; (M.R.); (M.H.); (J.B.); (A.G.); (B.S.)
| | - Ferdinand von Eggeling
- Department of Otorhinolaryngology, Jena University Hospital, Am Klinikum 1, 07747 Jena, Germany;
| | - Ulrich Schubert
- Institute of Organic Chemistry and Macromolecular Chemistry, Friedrich Schiller University Jena, Humboldtstrasse 10, 07743 Jena, Germany;
| | - Bettina Löffler
- Institute of Medical Microbiology, Jena University Hospital, Friedrich-Schiller University, Erlanger Allee 101, 07747 Jena, Germany;
| | - Bernd Sigusch
- Department of Conservative Dentistry and Periodontology, Jena University Hospital, Friedrich-Schiller University, An der alten Post 4, 07743 Jena, Germany; (M.R.); (M.H.); (J.B.); (A.G.); (B.S.)
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de Oliveira dos Santos AM, Duarte AE, Costa AR, da Silva AA, Rohde C, Silva DG, de Amorim ÉM, da Cruz Santos MH, Pereira MG, Deprá M, de Santana SL, da Silva Valente VL, Teixeira CS. Canavalia ensiformis lectin induced oxidative stress mediate both toxicity and genotoxicity in Drosophila melanogaster. Int J Biol Macromol 2022; 222:2823-2832. [DOI: 10.1016/j.ijbiomac.2022.10.061] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2022] [Revised: 10/06/2022] [Accepted: 10/07/2022] [Indexed: 11/05/2022]
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Aguilar AP, Onofre TS, Fabres-Klein MH, Klein RC, Feio RN, de Oliveira Mendes TA, de Oliveira Barros Ribon A. Carbohydrate-independent antibiofilm effect of Bothrops jararacussu lectin BJcuL on Staphylococcus aureus. Microb Pathog 2019; 137:103745. [PMID: 31520734 DOI: 10.1016/j.micpath.2019.103745] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2019] [Revised: 09/09/2019] [Accepted: 09/10/2019] [Indexed: 12/15/2022]
Abstract
The antivirulence approach to fighting biofilm-based infections caused by Staphylococcus aureus is a promising therapy that has been studied extensively. Here, we compare the antibiofilm activity of a purified lectin from Bothrops jararacussu venom (BJcuL) and commercial lectins obtained from Triticum vulgaris (Wheat Germ Agglutinin, WGA), Bandeiraea simplicifolia BS-II, and Maclura pomifera. Only WGA had antibiofilm activity, although no effect was seen on pre-formed biofilms. The pre-incubation of WGA and BJcuL with their preferential sugars inhibited the biological activity of WGA, but not that of BJcuL, suggesting that biofilm disruption does not involve carbohydrate-recognition domains (CRDs). Quantitative real-time PCR showed that BJcuL promotes modulation of expression of S. aureus genes involved in biofilm formation. Light microscopy revealed cocci and small cell clusters after biofilm formation in the presence of BJcuL, showing that the lectin treatment was unable to completely disrupt biofilm structure. Exposing the free cells to 50 times the minimum inhibitory concentration of gentamicin or ciprofloxacin did not prevent biofilm reestablishment, although inhibition was stronger than in the control (no lectin). This disruption of the biofilm architecture can expose the bacterial cell and may facilitate clearance by the immune system.
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Affiliation(s)
- Ananda Pereira Aguilar
- Departamento de Bioquímica e Biologia Molecular, Universidade Federal de Viçosa, Minas Gerais, Brazil
| | - Thiago Souza Onofre
- Departamento de Microbiologia, Imunologia e Parasitologia, Escola Paulista de Medicina, Universidade Federal de São Paulo, São Paulo, Brazil
| | | | - Raphael Contelli Klein
- Centro de Ciências Biológicas e da Saúde, Universidade Federal do Oeste da Bahia, Bahia, Brazil
| | - Renato Neves Feio
- Museu de Zoologia João Moojen, Departamento de Biologia Animal, Universidade Federal de Viçosa, Minas Gerais, Brazil
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Cavada BS, Osterne VJS, Pinto-Junior VR, Nascimento KS. ConBr, the Lectin from Canavalia brasiliensis Mart. Seeds: Forty Years of Research. Curr Protein Pept Sci 2019; 20:600-613. [DOI: 10.2174/1389203720666190104123210] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2018] [Revised: 11/30/2018] [Accepted: 12/29/2018] [Indexed: 12/16/2022]
Abstract
Lectins are defined as proteins or glycoproteins capable of specific and reversible binding to
carbohydrates. Inside this group of proteins, the most well-studied lectins belong to the Leguminosae
family, and inside this family, the Diocleinae subtribe includes the most characterized lectin Concanavalin
A (ConA), as well as ConBr, the lectin from Canavalia brasiliensis, the subject of this review.
Since 1979, several studies have been published in the literature regarding this lectin, from its isolation
and characterization to its several biological activities. This year, 2019, will mark 40 years since researchers
have begun to study ConBr and 100 years since the discovery of ConA, making 2019 a momentous
year for lectinology. Owing to the abundance of studies involving ConBr, this review will
focus on ConBr’s purification, physicochemical properties, functional and structural analyses, biological
activities and biotechnological applications. This will give researchers a broad glimpse into the
potential of this lectin, as well as it characteristics, as we look ahead to its expanding applications in
glycomics and biotechnology.
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Affiliation(s)
- Benildo Sousa Cavada
- BioMol-Lab, Department of Biochemistry and Molecular Biology, Federal University of Ceara, Ceara, Brazil
| | | | - Vanir Reis Pinto-Junior
- BioMol-Lab, Department of Biochemistry and Molecular Biology, Federal University of Ceara, Ceara, Brazil
| | - Kyria Santiago Nascimento
- BioMol-Lab, Department of Biochemistry and Molecular Biology, Federal University of Ceara, Ceara, Brazil
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Cavada BS, Pinto-Junior VR, Osterne VJS, Nascimento KS. ConA-Like Lectins: High Similarity Proteins as Models to Study Structure/Biological Activities Relationships. Int J Mol Sci 2018; 20:ijms20010030. [PMID: 30577614 PMCID: PMC6337138 DOI: 10.3390/ijms20010030] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2018] [Revised: 12/17/2018] [Accepted: 12/19/2018] [Indexed: 01/03/2023] Open
Abstract
Lectins are a widely studied group of proteins capable of specific and reversible binding to carbohydrates. Undoubtedly, the best characterized are those extracted from plants of the Leguminosae family. Inside this group of proteins, those from the Diocleinae subtribe have attracted attention, in particular Concanavalin A (ConA), the best-studied lectin of the group. Diocleinae lectins, also called ConA-like lectins, present a high similarity of sequence and three-dimensional structure and are known to present inflammatory, vasoactive, antibiotic, immunomodulatory and antitumor activities, among others. This high similarity of lectins inside the ConA-like group makes it possible to use them to study structure/biological activity relationships by the variability of both carbohydrate specificity and biological activities results. It is in this context the following review aims to summarize the most recent data on the biochemical and structural properties, as well as biological activities, of ConA-like lectins and the use of these lectins as models to study structure/biological activity relationships.
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Affiliation(s)
- Benildo S Cavada
- BioMol-Lab, Department of Biochemistry and Molecular Biology, Federal University of Ceara, Fortaleza-CE 60440-970, Brazil.
| | - Vanir R Pinto-Junior
- BioMol-Lab, Department of Biochemistry and Molecular Biology, Federal University of Ceara, Fortaleza-CE 60440-970, Brazil.
| | - Vinicius J S Osterne
- BioMol-Lab, Department of Biochemistry and Molecular Biology, Federal University of Ceara, Fortaleza-CE 60440-970, Brazil.
| | - Kyria S Nascimento
- BioMol-Lab, Department of Biochemistry and Molecular Biology, Federal University of Ceara, Fortaleza-CE 60440-970, Brazil.
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Vasconcelos SECB, Melo HM, Cavalcante TTA, Júnior FEAC, de Carvalho MG, Menezes FGR, de Sousa OV, Costa RA. Plectranthus amboinicus essential oil and carvacrol bioactive against planktonic and biofilm of oxacillin- and vancomycin-resistant Staphylococcus aureus. Altern Ther Health Med 2017; 17:462. [PMID: 28915875 PMCID: PMC5602841 DOI: 10.1186/s12906-017-1968-9] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2017] [Accepted: 09/08/2017] [Indexed: 11/28/2022]
Abstract
Background The emergence of multidrug-resistant bacteria is a worldwide concern and in order to find an alternative to this problem, the occurrence of antimicrobial compounds in Plectranthus amboinicus essential oil was investigated. Thus, this study aims to determine susceptibility of Staphylococcus aureus isolated from food to antibiotics, P. amboinicus essential oil (PAEO) and carvacrol. Methods Leaves and stem of P. amboinicus were used for extraction of essential oil (PAEO) by hydrodistillation technique and EO chemical analysis was performed by gas chromatography coupled to a mass spectrometer. S. aureus strains (n = 35) isolated from food and S. aureus ATCC 6538 were used to evaluate the antimicrobial and antibiofilm activity of PAEO and carvacrol. All strains (n = 35) were submitted to antimicrobial susceptibility profile by disk diffusion method. Determination of MIC and MBC was performed by microdilution technique and antibiofilm activity was determined by microtiter-plate technique with crystal violet assay and counting viable cells in Colony Forming Units (CFU). Results Carvacrol (88.17%) was the major component in the PAEO. Antibiotic resistance was detected in 28 S. aureus strains (80%) and 12 strains (34.3%) were oxacillin and vancomycin-resistant (OVRSA). From the 28 resistant strains, 7 (25%) showed resistance plasmid of 12,000 bp. All strains (n = 35) were sensitive to PAEO and carvacrol, with inhibition zones ranging from 16 to 38 mm and 23 to 42 mm, respectively. The lowest MIC (0.25 mg mL−1) and MBC (0.5 mg mL−1) values were observed when carvacrol was used against OVRSA. When a 0.5 mg mL−1 concentration of PAEO and carvacrol was used, no viable cells were found on S. aureus biofilm. Conclusion The antibacterial effect of carvacrol and PAEO proves to be a possible alternative against planktonic forms and staphylococcal biofilm.
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In Vitro Antibacterial and Antibiofilm Activity of Lippia alba Essential Oil, Citral, and Carvone against Staphylococcus aureus. ScientificWorldJournal 2017; 2017:4962707. [PMID: 28845443 PMCID: PMC5560023 DOI: 10.1155/2017/4962707] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2017] [Accepted: 06/21/2017] [Indexed: 01/26/2023] Open
Abstract
In vitro antimicrobial and antibiofilm activities of the Lippia alba essential oil and its major components (citral and carvone) against Staphylococcus aureus were investigated. Essential oils (LA1EO, LA2EO, and LA3EO) were extracted from the aerial parts of three L. alba specimens by hydrodistillation and analyzed by gas chromatography coupled to a mass spectrometer. Minimum Inhibitory Concentrations (MIC) and Minimum Bacterial Concentration (MBC) were determined by the microdilution method. For the antibiofilm assays, the biomass formation in the biofilm was evaluated by the microtiter-plate technique with the crystal violet (CV) assay and the viability of the bacterial cells was analyzed. All oils and their major components presented antibacterial activity, and the lowest MIC and MBC values were 0.5 mg mL−1 when LA1EO and citral were used. Potential inhibition (100%) of S. aureus biofilm formation at the concentration of 0.5 mg mL−1 of all EOs was observed. However, the elimination of biofilm cells was confirmed at concentrations of 1 mg mL−1, 2 mg mL−1, 2 mg mL−1, and 0.5 mg mL−1 for LA1EO, LA2EO, LA3EO, and citral, respectively. The results obtained in the present research point to the promising antibacterial and antibiofilm potential of L. alba EOs against S. aureus, a species of recognized clinical interest.
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Structural analysis of a Dioclea sclerocarpa lectin: Study on the vasorelaxant properties of Dioclea lectins. Int J Biol Macromol 2016; 82:464-70. [DOI: 10.1016/j.ijbiomac.2015.10.052] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2015] [Revised: 10/18/2015] [Accepted: 10/19/2015] [Indexed: 12/11/2022]
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Braga AA, e Lacerda RR, de Vasconcelos Medeiros GKV, Gonçalves GF, de Luna Freire Pessoa H, Cardoso JD, de Almeida Gadelha CA, da Silva BA, Santi-Gadelha T. Antibacterial and Hemolytic Activity of a new Lectin Purified from the Seeds of Sterculia Foetida L. Appl Biochem Biotechnol 2014; 175:1689-99. [DOI: 10.1007/s12010-014-1390-4] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2014] [Accepted: 11/12/2014] [Indexed: 11/29/2022]
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Hasan I, Watanabe M, Ishizaki N, Sugita-Konishi Y, Kawakami Y, Suzuki J, Dogasaki C, Rajia S, Kawsar SMA, Koide Y, Kanaly RA, Sugawara S, Hosono M, Ogawa Y, Fujii Y, Iriko H, Hamako J, Matsui T, Ozeki Y. A galactose-binding lectin isolated from Aplysia kurodai (sea hare) eggs inhibits streptolysin-induced hemolysis. Molecules 2014; 19:13990-4003. [PMID: 25197935 PMCID: PMC6271371 DOI: 10.3390/molecules190913990] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2014] [Revised: 08/21/2014] [Accepted: 09/02/2014] [Indexed: 01/01/2023] Open
Abstract
A specific galactose-binding lectin was shown to inhibit the hemolytic effect of streptolysin O (SLO), an exotoxin produced by Streptococcus pyogenes. Commercially available lectins that recognize N-acetyllactosamine (ECA), T-antigen (PNA), and Tn-antigen (ABA) agglutinated rabbit erythrocytes, but had no effect on SLO-induced hemolysis. In contrast, SLO-induced hemolysis was inhibited by AKL, a lectin purified from sea hare (Aplysia kurodai) eggs that recognizes α-galactoside oligosaccharides. This inhibitory effect was blocked by the co-presence of d-galactose, which binds to AKL. A possible explanation for these findings is that cholesterol-enriched microdomains containing glycosphingolipids in the erythrocyte membrane become occupied by tightly stacked lectin molecules, blocking the interaction between cholesterol and SLO that would otherwise result in penetration of the membrane. Growth of S. pyogenes was inhibited by lectins from a marine invertebrate (AKL) and a mushroom (ABA), but was promoted by a plant lectin (ECA). Both these inhibitory and promoting effects were blocked by co-presence of galactose in the culture medium. Our findings demonstrate the importance of glycans and lectins in regulating mechanisms of toxicity, creation of pores in the target cell membrane, and bacterial growth.
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Affiliation(s)
- Imtiaj Hasan
- Laboratories of Glycobiology & Marine Biochemistry and Molecular Toxicology, Department of Life and Environmental System Science, Graduate School of NanoBio Sciences, Yokohama City University, 22-2 Seto, Kanazawa-ku, Yokohama 236-0027, Japan. Department of Biochemistry and Molecular Biology, Faculty of Science, University of Rajshahi, Rajshahi-6205, Bangladesh.
| | - Miharu Watanabe
- School of Life and Environmental Science, Azabu University, 1-17-71, Fuchinobe, Chuo-ku, Sagamihara, Kanagawa 252-5201, Japan.
| | - Naoto Ishizaki
- School of Life and Environmental Science, Azabu University, 1-17-71, Fuchinobe, Chuo-ku, Sagamihara, Kanagawa 252-5201, Japan.
| | - Yoshiko Sugita-Konishi
- School of Life and Environmental Science, Azabu University, 1-17-71, Fuchinobe, Chuo-ku, Sagamihara, Kanagawa 252-5201, Japan.
| | - Yasushi Kawakami
- School of Life and Environmental Science, Azabu University, 1-17-71, Fuchinobe, Chuo-ku, Sagamihara, Kanagawa 252-5201, Japan.
| | - Jun Suzuki
- School of Life and Environmental Science, Azabu University, 1-17-71, Fuchinobe, Chuo-ku, Sagamihara, Kanagawa 252-5201, Japan.
| | - Chikaku Dogasaki
- School of Life and Environmental Science, Azabu University, 1-17-71, Fuchinobe, Chuo-ku, Sagamihara, Kanagawa 252-5201, Japan.
| | - Sultana Rajia
- Laboratories of Glycobiology & Marine Biochemistry and Molecular Toxicology, Department of Life and Environmental System Science, Graduate School of NanoBio Sciences, Yokohama City University, 22-2 Seto, Kanazawa-ku, Yokohama 236-0027, Japan.
| | - Sarkar M A Kawsar
- Department of Chemistry, Faculty of Sciences, University of Chittagong, Chittagong-4331, Bangladesh.
| | - Yasuhiro Koide
- Laboratories of Glycobiology & Marine Biochemistry and Molecular Toxicology, Department of Life and Environmental System Science, Graduate School of NanoBio Sciences, Yokohama City University, 22-2 Seto, Kanazawa-ku, Yokohama 236-0027, Japan.
| | - Robert A Kanaly
- Laboratories of Glycobiology & Marine Biochemistry and Molecular Toxicology, Department of Life and Environmental System Science, Graduate School of NanoBio Sciences, Yokohama City University, 22-2 Seto, Kanazawa-ku, Yokohama 236-0027, Japan.
| | - Shigeki Sugawara
- Division of Cell Recognition Study, Institute of Molecular Biomembrane and Glycobiology, Tohoku Pharmaceutical University, 4-4-1 Komatsushima, Aoba-ku, Sendai 981-8558, Japan.
| | - Masahiro Hosono
- Division of Cell Recognition Study, Institute of Molecular Biomembrane and Glycobiology, Tohoku Pharmaceutical University, 4-4-1 Komatsushima, Aoba-ku, Sendai 981-8558, Japan.
| | - Yukiko Ogawa
- Department of Pharmacy, Faculty of Pharmaceutical Science, Nagasaki International University, 2825-7 Huis Ten Bosch, Sasebo, Nagasaki 859-3298, Japan.
| | - Yuki Fujii
- Department of Pharmacy, Faculty of Pharmaceutical Science, Nagasaki International University, 2825-7 Huis Ten Bosch, Sasebo, Nagasaki 859-3298, Japan.
| | - Hideyuki Iriko
- Department of Parasitology, Graduate School of Health Sciences, Kobe University, 7-10-2, Tomogaoka, Suma-ku, Kobe 654-0142, Japan.
| | - Jiharu Hamako
- Department of Biology, School of Health Sciences, Fujita Health University, Toyoake, Aichi 470-1192, Japan.
| | - Taei Matsui
- Department of Biology, School of Health Sciences, Fujita Health University, Toyoake, Aichi 470-1192, Japan.
| | - Yasuhiro Ozeki
- Laboratories of Glycobiology & Marine Biochemistry and Molecular Toxicology, Department of Life and Environmental System Science, Graduate School of NanoBio Sciences, Yokohama City University, 22-2 Seto, Kanazawa-ku, Yokohama 236-0027, Japan.
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Effect of algae and plant lectins on planktonic growth and biofilm formation in clinically relevant bacteria and yeasts. BIOMED RESEARCH INTERNATIONAL 2014; 2014:365272. [PMID: 24982871 PMCID: PMC4058506 DOI: 10.1155/2014/365272] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/19/2014] [Revised: 04/29/2014] [Accepted: 05/14/2014] [Indexed: 11/23/2022]
Abstract
This study aimed to evaluate the abilities of plant and algae lectins to inhibit planktonic growth and biofilm formation in bacteria and yeasts. Initially, ten lectins were tested on Staphylococcus epidermidis, Staphylococcus aureus, Klebsiella oxytoca, Pseudomonas aeruginosa, Candida albicans, and C. tropicalis at concentrations of 31.25 to 250 μg/mL. The lectins from Cratylia floribunda (CFL), Vatairea macrocarpa (VML), Bauhinia bauhinioides (BBL), Bryothamnion seaforthii (BSL), and Hypnea musciformis (HML) showed activities against at least one microorganism. Biofilm formation in the presence of the lectins was also evaluated; after 24 h of incubation with the lectins, the biofilms were analyzed by quantifying the biomass (by crystal violet staining) and by enumerating the viable cells (colony-forming units). The lectins reduced the biofilm biomass and/or the number of viable cells to differing degrees depending on the microorganism tested, demonstrating the different characteristics of the lectins. These findings indicate that the lectins tested in this study may be natural alternative antimicrobial agents; however, further studies are required to better elucidate the functional use of these proteins.
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Barroso-Neto IL, Simões RC, Rocha BAM, Bezerra MJB, Pereira-Junior FN, Silva Osterne VJ, Nascimento KS, Nagano CS, Delatorre P, Pereira MG, Freitas Pires A, Sampaio AH, Assreuy AMS, Cavada BS. Vasorelaxant activity of Canavalia grandiflora seed lectin: A structural analysis. Arch Biochem Biophys 2013; 543:31-9. [PMID: 24361256 DOI: 10.1016/j.abb.2013.12.006] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2013] [Revised: 12/02/2013] [Accepted: 12/07/2013] [Indexed: 10/25/2022]
Abstract
Lectins are comprised of a large family of proteins capable of the specific and reversible recognition of carbohydrates. Legume lectins, the most studied plant lectins, show high structural similarity, but with modifications that imply a variation in the intensity of some biological activities. In this work, the primary and tertiary structures of Canavalia grandiflora (ConGF) were determined. ConGF, a lectin isolated from C. grandiflora seeds, is able to induce relaxant activity in rat aortic rings. The complete sequence of ConGF comprises 237 amino acids. This particular protein has primary sequence variations commonly found in lectins from Dioclea and Canavalia genera. The protein structure was solved at 2.3 Å resolution by X-ray crystallography. An X-Man molecule was modeled into the carbohydrate recognition domain. Still, ConGF (30 and 100 μg mL(-1)) elicited 25% of vasorelaxation (IC50=34.48 ± 5.07 μg mL(-1)) in endothelialized aortic rings. A nonselective inhibitor of nitric oxide blocked ConGF relaxant effect, showing mediation by nitric oxide. Key distances between ConGF carbohydrate recognition domain residues were determined in order to explain this effect, in turn revealing some structural aspects that could differentiate lectins from the Canavalia genera with respect to different efficacy in vasorelaxant effect.
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Affiliation(s)
| | - Rafael Conceição Simões
- Laboratório de Moléculas Biologicamente Ativas, Universidade Federal do Ceará, Fortaleza, Brazil
| | | | | | | | | | | | - Celso Shiniti Nagano
- Laboratório de Moléculas Biologicamente Ativas, Universidade Federal do Ceará, Fortaleza, Brazil; Departamento de Engenharia de Pesca, Universidade Federal do Ceará, Fortaleza, Brazil
| | - Plinio Delatorre
- Departamento de Biologia Molecular, Universidade Federal da Paraíba, João Pessoa, Brazil
| | - Maria Gonçalves Pereira
- Instituto Superior de Ciências Biomédicas, Universidade Estadual do Ceará, Fortaleza, Brazil
| | - Alana Freitas Pires
- Instituto Superior de Ciências Biomédicas, Universidade Estadual do Ceará, Fortaleza, Brazil
| | - Alexandre Holanda Sampaio
- Laboratório de Moléculas Biologicamente Ativas, Universidade Federal do Ceará, Fortaleza, Brazil; Departamento de Engenharia de Pesca, Universidade Federal do Ceará, Fortaleza, Brazil
| | | | - Benildo Sousa Cavada
- Laboratório de Moléculas Biologicamente Ativas, Universidade Federal do Ceará, Fortaleza, Brazil.
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Klafke G, Borsuk S, Gonçales R, Arruda F, Carneiro V, Teixeira E, Coelho da Silva A, Cavada B, Dellagostin O, Pinto L. Inhibition of initial adhesion of oral bacteria through a lectin from Bauhinia variegata
L. var. variegata expressed in Escherichia coli. J Appl Microbiol 2013; 115:1222-30. [DOI: 10.1111/jam.12318] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2013] [Revised: 06/24/2013] [Accepted: 07/27/2013] [Indexed: 11/29/2022]
Affiliation(s)
- G.B. Klafke
- Núcleo Biotecnologia; Centro de Desenvolvimento Tecnológico; Universidade Federal de Pelotas; Pelotas Brazil
- Faculdade de Medicina; Laboratório de Micologia; Universidade Federal de Rio Grande; Rio Grande Brazil
| | - S. Borsuk
- Núcleo Biotecnologia; Centro de Desenvolvimento Tecnológico; Universidade Federal de Pelotas; Pelotas Brazil
| | - R.A. Gonçales
- Núcleo Biotecnologia; Centro de Desenvolvimento Tecnológico; Universidade Federal de Pelotas; Pelotas Brazil
| | - F.V.S. Arruda
- Faculdade de Medicina de Sobral; Universidade Federal do Ceará; Sobral Brazil
| | - V.A. Carneiro
- Faculdade de Medicina de Sobral; Universidade Federal do Ceará; Sobral Brazil
| | - E.H. Teixeira
- Faculdade de Medicina de Sobral; Universidade Federal do Ceará; Sobral Brazil
| | - A.L. Coelho da Silva
- Laboratório de Biotecnologia Molecular (LabBMol); Universidade Federal do Ceará; Fortaleza Brazil
| | - B.S. Cavada
- Laboratório de Moléculas Biologicamente Ativas; Departamento de Bioquímica e Biologia Molecular; Universidade Federal do Ceará; Fortaleza Brazil
| | - O.A. Dellagostin
- Núcleo Biotecnologia; Centro de Desenvolvimento Tecnológico; Universidade Federal de Pelotas; Pelotas Brazil
| | - L.S. Pinto
- Núcleo Biotecnologia; Centro de Desenvolvimento Tecnológico; Universidade Federal de Pelotas; Pelotas Brazil
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16
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A comparison of effects of broad-spectrum antibiotics and biosurfactants on established bacterial biofilms. Curr Microbiol 2013; 67:614-23. [PMID: 23783562 DOI: 10.1007/s00284-013-0412-8] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2013] [Accepted: 05/26/2013] [Indexed: 10/26/2022]
Abstract
Current antibiofilm solutions based on planktonic bacterial physiology have limited efficacy in clinical and occasionally environmental settings. This has prompted a search for suitable alternatives to conventional therapies. This study compares the inhibitory properties of two biological surfactants (rhamnolipids and a plant-derived surfactant) against a selection of broad-spectrum antibiotics (ampicillin, chloramphenicol and kanamycin). Testing was carried out on a range of bacterial physiologies from planktonic and mixed bacterial biofilms. Rhamnolipids (Rhs) have been extensively characterised for their role in the development of biofilms and inhibition of planktonic bacteria. However, there are limited direct comparisons with antimicrobial substances on established biofilms comprising single or mixed bacterial strains. Baseline measurements of inhibitory activity using planktonic bacterial assays established that broad-spectrum antibiotics were 500 times more effective at inhibiting bacterial growth than either Rhs or plant surfactants. Conversely, Rhs and plant biosurfactants reduced biofilm biomass of established single bacterial biofilms by 74-88 and 74-98 %, respectively. Only kanamycin showed activity against biofilms of Bacillus subtilis and Staphylococcus aureus. Broad-spectrum antibiotics were also ineffective against a complex biofilm of marine bacteria; however, Rhs and plant biosurfactants reduced biofilm biomass by 69 and 42 %, respectively. These data suggest that Rhs and plant-derived surfactants may have an important role in the inhibition of complex biofilms.
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de Vasconcelos MA, Cunha CO, Arruda FVS, Carneiro VA, Bastos RM, Mercante FM, do Nascimento KS, Cavada BS, dos Santos RP, Teixeira EH. Effect of leguminous lectins on the growth of Rhizobium tropici CIAT899. Molecules 2013; 18:5792-803. [PMID: 23685936 PMCID: PMC6269896 DOI: 10.3390/molecules18055792] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2013] [Accepted: 05/14/2013] [Indexed: 01/15/2023] Open
Abstract
Rhizobium tropici is a Gram-negative bacterium that induces nodules and fixed atmospheric nitrogen in symbiotic association with Phaseolus vulgaris (common bean) and some other leguminous species. Lectins are proteins that specifically bind to carbohydrates and, consequently, modulate different biological functions. In this study, the d-glucose/d-mannose-binding lectins (from seeds of Dioclea megacarpa, D. rostrata and D. violacea) and d-galactose-binding lectins (from seeds of Bauhinia variegata, Erythina velutina and Vatairea macrocarpa) were purified using chromatographic techniques and evaluated for their effect on the growth of R. tropici CIAT899. All lectins were assayed with a satisfactory degree of purity according to SDS-PAGE analysis, and stimulated bacterial growth; in particular, the Dioclea rostrata lectin was the most active among all tested proteins. As confirmed in the present study, both d-galactose- and d-glucose/d-mannose-binding lectins purified from the seeds of leguminous plants may be powerful biotechnological tools to stimulate the growth of R. tropici CIAT99, thus improving symbiotic interaction between rhizobia and common bean and, hence, the production of this field crop.
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Affiliation(s)
- Mayron Alves de Vasconcelos
- Department of Biochemistry and Molecular Biology, Federal University of Ceará, Fortaleza, CE, 60440-970, Brazil; E-Mails: (M.A.V.); (C.O.C.); (K.S.N.); (B.S.C.)
| | - Cláudio Oliveira Cunha
- Department of Biochemistry and Molecular Biology, Federal University of Ceará, Fortaleza, CE, 60440-970, Brazil; E-Mails: (M.A.V.); (C.O.C.); (K.S.N.); (B.S.C.)
| | - Francisco Vassiliepe Sousa Arruda
- Integrated Laboratory of Biomolecules (LIBS), Department of Pathology and Legal Medicine, Faculty of Medicine, Federal University of Ceará, Fortaleza, CE, 60430-160, Brazil; E-Mails: (F.V.S.A.); (V.A.C.); (R.M.B.)
| | - Victor Alves Carneiro
- Department of Biochemistry and Molecular Biology, Federal University of Ceará, Fortaleza, CE, 60440-970, Brazil; E-Mails: (M.A.V.); (C.O.C.); (K.S.N.); (B.S.C.)
| | - Rafaela Mesquita Bastos
- Integrated Laboratory of Biomolecules (LIBS), Department of Pathology and Legal Medicine, Faculty of Medicine, Federal University of Ceará, Fortaleza, CE, 60430-160, Brazil; E-Mails: (F.V.S.A.); (V.A.C.); (R.M.B.)
| | | | - Kyria Santiago do Nascimento
- Department of Biochemistry and Molecular Biology, Federal University of Ceará, Fortaleza, CE, 60440-970, Brazil; E-Mails: (M.A.V.); (C.O.C.); (K.S.N.); (B.S.C.)
| | - Benildo Sousa Cavada
- Department of Biochemistry and Molecular Biology, Federal University of Ceará, Fortaleza, CE, 60440-970, Brazil; E-Mails: (M.A.V.); (C.O.C.); (K.S.N.); (B.S.C.)
| | - Ricardo Pires dos Santos
- Laboratory of Materials Engineering and Computation of Sobral (LEMCS), Federal University of Ceará, Campus do Derby, Sobral, CE, 62042-280, Brazil; E-Mail:
| | - Edson Holanda Teixeira
- Integrated Laboratory of Biomolecules (LIBS), Department of Pathology and Legal Medicine, Faculty of Medicine, Federal University of Ceará, Fortaleza, CE, 60430-160, Brazil; E-Mails: (F.V.S.A.); (V.A.C.); (R.M.B.)
- Author to whom correspondence should be addressed; E-Mail: ; Tel./Fax: +55-85-3366-8300
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da Silva BR, de Freitas VAA, Carneiro VA, Arruda FVS, Lorenzón EN, de Aguiar ASW, Cilli EM, Cavada BS, Teixeira EH. Antimicrobial activity of the synthetic peptide Lys-a1 against oral streptococci. Peptides 2013; 42:78-83. [PMID: 23340019 DOI: 10.1016/j.peptides.2012.12.001] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/31/2012] [Revised: 12/03/2012] [Accepted: 12/03/2012] [Indexed: 11/30/2022]
Abstract
The peptide LYS-[TRP(6)]-Hy-A1 (Lys-a1) is a synthetic derivative of the peptide Hy-A1, initially isolated from the frog species Hypsiboas albopunctatus. According to previous research, it is a molecule with broad antimicrobial activity. The objective of this study was to evaluate the antimicrobial activity of the synthetic peptide Lys-a1 (KIFGAIWPLALGALKNLIK-NH2) on the planktonic and biofilm growth of oral bacteria. The methods used to evaluate antimicrobial activity include the following: determination of the minimum inhibitory concentration (MIC) and minimum bactericidal concentration (MBC) in microtiter plates for growth in suspension and quantification of biomass by crystal violet staining and counting of colony forming units for biofilm growth. The microorganisms Streptococcus oralis, Streptococcus sanguinis, Streptococcus parasanguinis, Streptococcus salivarius, Streptococcus mutans and Streptococcus sobrinus were grown in Brain Heart Infusion broth at 37°C under atmospheric pressure with 10% CO2. The peptide was solubilized in 0.1% acetic acid (v/v) at various concentrations (500-1.9 μg mL(-1)). Chlorhexidine gluconate 0.12% was used as the positive control, and BHI culture medium was used as the negative control. The tested peptide demonstrated a remarkable antimicrobial effect, inhibiting the planktonic and biofilm growth of all strains tested, even at low concentrations. Thus, the peptide Lys-a1 is an important source for potential antimicrobial agents, especially for the control and prevention of microbial biofilms, which is one of the most important factors in cariogenic processes.
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Affiliation(s)
- Bruno Rocha da Silva
- BioMol Group/DPML/LIBS, Integrate Biomolecules Laboratory, Federal University of Ceara, Fortaleza, CE, Brazil
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19
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Arruda Cavalcante TT, Carneiro VA, Neves CC, Sousa Duarte HD, Queiroz Martins MGD, Sousa Arruda FV, Vasconcelos MAD, dos Santos HS, Silva Cunha RMD, Cavada BS, Teixeira EH. A ConA-like lectin isolated from <i>Canavalia maritima</i> seeds alters the expression of genes related to virulence and biofilm formation in <i>Streptococcus mutans</i>. ACTA ACUST UNITED AC 2013. [DOI: 10.4236/abb.2013.412143] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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20
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da Silva BR, de Freitas VAA, Nascimento-Neto LG, Carneiro VA, Arruda FVS, de Aguiar ASW, Cavada BS, Teixeira EH. Antimicrobial peptide control of pathogenic microorganisms of the oral cavity: a review of the literature. Peptides 2012; 36:315-21. [PMID: 22664320 DOI: 10.1016/j.peptides.2012.05.015] [Citation(s) in RCA: 74] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/25/2012] [Revised: 05/24/2012] [Accepted: 05/24/2012] [Indexed: 12/30/2022]
Abstract
Antimicrobial peptides, molecules produced in many different organisms, have high biocidal activity against several microorganisms. However, several questions about these molecules remain unclear. Therefore, this report details a systematic survey of the literature on the use of antimicrobial peptides against oral pathogens and indicates which peptides and microorganisms are most extensively studied. Articles were located using the PubMed and Science Direct databases with the following inclusion criteria: publication date between 2002 and 2011; keywords "biofilm OR biological film OR biological layer OR bacterial growth" AND "peptide" AND "oral cavity OR mouth OR buccal mucosa OR oral mucosa OR mouth mucosa"; and abstract in English. A total of 73 articles were selected after refinement of the data. An increase in publications focusing on the use of antimicrobial peptides against oral microorganisms was observed. In addition, the peptides produced by cells of the oral mucosa (defensins, LL-37 and histatins) as well as Streptococcus mutans (among cariogenic bacteria) and Porphyromonas gingivalis (among periodontal bacteria) were the most studied subjects. It was concluded that the use of antimicrobial peptides as a tool for microbial control is of increasing importance, likely due to its widespread use, mechanism of action, and low rates of bacterial resistance.
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Quinn GA, Maloy AP, McClean S, Carney B, Slater JW. Lipopeptide biosurfactants from Paenibacillus polymyxa inhibit single and mixed species biofilms. BIOFOULING 2012; 28:1151-1166. [PMID: 23113815 DOI: 10.1080/08927014.2012.738292] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Although biofilms are recognised as important in microbial colonisation, solutions to their inhibition are predominantly based on planktonic assays. These solutions have limited efficacy against biofilms. Here, a series of biofilm-orientated tests were used to identify anti-biofilm compounds from marine micro-flora. This led to the isolation of a complex of anti-biofilm compounds from an extract of Paenibacillus polymyxa (PPE). A combination of rpHPLC and mass spectrometry identified the principle components of PPE as fusaricidin B (LI-FO4b) and polymyxin D1, with minor contributions from surfactins. This complex (PPE) reduced the biofilm biomass of Bacillus subtilis, Micrococcus luteus, Pseudomonas aeruginosa, Staphylococcus aureus and Streptococcus bovis. In contrast, ampicillin was only effective against S. aureus. PPE also inhibited a self-assembling marine biofilm (SAMB) in co-incubation assays by 99.3% ± 1.9 and disrupted established SAMB by 72.4% ± 4.4, while ampicillin showed no significant reduction. The effectiveness of this complex of lipopeptides against single and multispecies biofilms suggests a future role in biofilm prevention strategies.
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Affiliation(s)
- Gerry A Quinn
- Centre of Applied Marine Biotechnology, Letterkenny Institute of Technology, Letterkenny, County Donegal, Republic of Ireland.
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22
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Neto LGDN, Pinto LDS, Bastos RM, Evaristo FFV, de Vasconcelos MA, Carneiro VA, Arruda FVS, Porto ALF, Leal RB, Júnior VADS, Cavada BS, Teixeira EH. Effect of the lectin of Bauhinia variegata and its recombinant isoform on surgically induced skin wounds in a murine model. Molecules 2011; 16:9298-315. [PMID: 22064270 PMCID: PMC6264313 DOI: 10.3390/molecules16119298] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2011] [Revised: 10/20/2011] [Accepted: 10/27/2011] [Indexed: 11/16/2022] Open
Abstract
Lectins are a structurally heterogeneous group of highly specific carbohydrate-binding proteins. Due to their great biotechnological potential, lectins are widely used in biomedical research. The purpose of the present study was to evaluate the healing potential of the lectin of Bauhinia variegata (nBVL) and its recombinant isoform (rBVL-1). Following surgical creation of dorsal skin wounds, seven groups of mice were submitted to topical treatment for 12 days with lectin, D-galactose, BSA and saline. The animals were anesthetized and euthanized on POD 2, 7 and 12 in order to evaluate the healing potential of each treatment. The parameters considered included wound size, contraction rate, epithelialization rate and histopathological findings. Wound closure was fastest in animals treated with rBVL-1 (POD 7). nBVL was more effective than the controls. All skin layers were reconstructed and keratin deposition increased. Our findings indicate that the lectin of Bauhinia variegata possesses pro-healing properties and may be employed in the treatment of acute skin wounds.
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Affiliation(s)
- Luiz Gonzaga do Nascimento Neto
- Integrated Laboratory of Biomolecules (LIBS), School of Medicine of the Federal University of Ceará, Sobral, Ceará 62042-280, Brazil; E-Mails: (L.G.N.N.); (R.M.B.); (F.F.V.E.); (V.A.C.); (F.V.S.A.)
| | - Luciano da Silva Pinto
- Center for Technological Development (CDTec), Unidad of Biotecnology, Federal University of Pelotas, Pelotas, Rio Grande do Sul, 96010-900, Brazil; E-Mail: (L.d.S.P.)
| | - Rafaela Mesquita Bastos
- Integrated Laboratory of Biomolecules (LIBS), School of Medicine of the Federal University of Ceará, Sobral, Ceará 62042-280, Brazil; E-Mails: (L.G.N.N.); (R.M.B.); (F.F.V.E.); (V.A.C.); (F.V.S.A.)
| | - Francisco Flávio Vasconcelos Evaristo
- Integrated Laboratory of Biomolecules (LIBS), School of Medicine of the Federal University of Ceará, Sobral, Ceará 62042-280, Brazil; E-Mails: (L.G.N.N.); (R.M.B.); (F.F.V.E.); (V.A.C.); (F.V.S.A.)
| | - Mayron Alves de Vasconcelos
- Department of Biochemistry and Molecular Biology, Federal University of Ceará, Fortaleza, Ceará 60451-970, Brazil; E-Mails: (M.A.V.); (B.S.C.)
| | - Victor Alves Carneiro
- Integrated Laboratory of Biomolecules (LIBS), School of Medicine of the Federal University of Ceará, Sobral, Ceará 62042-280, Brazil; E-Mails: (L.G.N.N.); (R.M.B.); (F.F.V.E.); (V.A.C.); (F.V.S.A.)
| | - Francisco Vassiliepe Sousa Arruda
- Integrated Laboratory of Biomolecules (LIBS), School of Medicine of the Federal University of Ceará, Sobral, Ceará 62042-280, Brazil; E-Mails: (L.G.N.N.); (R.M.B.); (F.F.V.E.); (V.A.C.); (F.V.S.A.)
| | - Ana Lúcia Figueiredo Porto
- Department of Animal Morphology and Physiology, Federal Rural University of Pernambuco, Recife, Pernambuco 52171-900, Brazil; E-Mails: (A.L.F.P.); (V.A.d.S.J.)
| | - Rodrigo Bainy Leal
- Department of Biochemistry, CBB, Federal University of Santa Catarina, Santa Catarina 88040-970, Brazil; E-Mail: (B.B.L.)
| | - Valdemiro Amaro da Silva Júnior
- Department of Animal Morphology and Physiology, Federal Rural University of Pernambuco, Recife, Pernambuco 52171-900, Brazil; E-Mails: (A.L.F.P.); (V.A.d.S.J.)
| | - Benildo Sousa Cavada
- Department of Biochemistry and Molecular Biology, Federal University of Ceará, Fortaleza, Ceará 60451-970, Brazil; E-Mails: (M.A.V.); (B.S.C.)
| | - Edson Holanda Teixeira
- Integrated Laboratory of Biomolecules (LIBS), School of Medicine of the Federal University of Ceará, Sobral, Ceará 62042-280, Brazil; E-Mails: (L.G.N.N.); (R.M.B.); (F.F.V.E.); (V.A.C.); (F.V.S.A.)
- Author to whom correspondence should be addressed; E-Mail: ; Tel.: +55-88-3611-8000; Fax: +55-88-3611-2202
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