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Grangeiro YA, Santos ALE, Barbosa FEV, Roma RR, Souza ROS, Silva CGL, Teixeira CS. A Review of the Leishmanicidal Properties of Lectins. Curr Protein Pept Sci 2024; 25:443-453. [PMID: 38284715 DOI: 10.2174/0113892037275751231221053730] [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: 08/23/2023] [Revised: 10/14/2023] [Accepted: 11/22/2023] [Indexed: 01/30/2024]
Abstract
Lectins are proteins widely distributed among plants, animals and microorganisms that have the ability to recognize and interact with specific carbohydrates. They have varied biological activities, such as the inhibition of the progression of infections caused by fungi, bacteria, viruses and protozoa, which is related to the interaction of these proteins with the carbohydrates present in the cell walls of these microorganisms. Leishmaniasis are a group of endemic infectious diseases caused by protozoa of the genus Leishmania. In vitro and in vivo tests with promastigotes and amastigotes of Leishmania demonstrated that lectins have the ability to interact with glycoconjugates present on the cell surface of the parasite, it prevents their development through various mechanisms of action, such as the production of ROS and alteration of membrane integrity, and can also interact with defense cells present in the human body, thus showing that these molecules can be considered alternative pharmacological targets for the treatment of leishmaniasis. The objective of the present work is to carry out a bibliographic review on lectins with leishmanicidal activity, emphasizing the advances and perspectives of research in this theme. Through the analysis of the selected studies, we were able to conclude that lectins have great potential for inhibiting the development of leishmaniasis. However, there are still few studies on this subject.
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Affiliation(s)
- Yasmim A Grangeiro
- Departamento de Bioquímica, Universidade Federal do Ceará, Fortaleza, CE, Brazil
| | - Ana L E Santos
- Faculdade de Medicina, Universidade Federal do Cariri, Barbalha, CE, Brazil
| | - Flávia E V Barbosa
- Faculdade de Medicina, Universidade Federal do Cariri, Barbalha, CE, Brazil
| | - Renato R Roma
- Departamento de Bioquímica, Universidade Federal do Ceará, Fortaleza, CE, Brazil
| | - Racquel O S Souza
- Faculdade de Medicina, Universidade Federal do Cariri, Barbalha, CE, Brazil
| | - Cláudio G L Silva
- Faculdade de Medicina, Universidade Federal do Cariri, Barbalha, CE, Brazil
| | - Claudener S Teixeira
- Centro de Ciências Agrárias e da biodiversidade, Universidade Federal do Cariri, Crato, CE, Brazil
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de Souza Aguiar LM, de Moraes Alves MM, Sobrinho Júnior EPC, Paiva PMG, de Amorim Carvalho FA, de Albuquerque LP, de Siqueira Patriota LL, Napoleão TH. Microgramma vacciniifolia Frond Lectin: In Vitro Anti-leishmanial Activity and Immunomodulatory Effects Against Internalized Amastigote Forms of Leishmania amazonensis. Acta Parasitol 2023; 68:869-879. [PMID: 37874484 DOI: 10.1007/s11686-023-00717-7] [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: 08/31/2022] [Accepted: 08/22/2023] [Indexed: 10/25/2023]
Abstract
PURPOSE The treatment of leishmaniasis, an anthropozoonosis caused by Leishmania protozoa, is limited by factors, such as adverse effects, toxicity, and excessive cost, which has highlighted the importance of novel drugs. In this context, natural products have been considered as sources of antileishmanial agents. This study investigated the leishmanicidal activity of Microgramma vacciniifolia frond lectin (MvFL) on promastigotes and amastigotes of Leishmania amazonensis. METHODS The effects of MvFL on promastigote proliferation and macrophage infection by amastigotes were evaluated and mean inhibitory concentrations (IC50) were calculated. As a safety assessment, the hemolytic capacity of MvFL (6.25-200 µg/mL) against mouse and human erythrocytes was determined. Additionally, the ability of MvFL (6.25-100 µg/mL) to modulate lysosomal and phagocytic activities and the nitric oxide (NO) production by murine peritoneal macrophages was also investigated. RESULTS After 24 h, MvFL inhibited the proliferation of L. amazonensis promastigotes, with an IC50 of 88 µg/mL; however, hemolytic activity was not observed. MvFL also reduced macrophage infection by amastigotes with an IC50 of 52 µg/mL. Furthermore, treatment with MvFL reduced the number of amastigotes internalized by infected murine peritoneal macrophages by up to 68.9% within 48 h. At a concentration of 25 µg/mL, MvFL stimulated lysosomal activity of macrophages within 72 h, but did not alter phagocytic activity or induce NO production at any of the tested concentrations. CONCLUSION MvFL exerts antileishmanial activity and further studies are needed to assess its therapeutic potential in in vivo experimental models of leishmaniasis.
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Affiliation(s)
| | - Michel Muálem de Moraes Alves
- Núcleo de Pesquisas em Plantas Medicinais-NPPM, Universidade Federal do Piauí, Teresina, Piauí, Brazil
- Departamento de Morfofisiologia Veterinária, Universidade Federal do Piauí, Teresina, Piauí, Brazil
| | | | - Patrícia Maria Guedes Paiva
- Departamento de Bioquímica, Centro de Biociências, Universidade Federal de Pernambuco, Recife, Pernambuco, Brazil
| | - Fernando Aécio de Amorim Carvalho
- Núcleo de Pesquisas em Plantas Medicinais-NPPM, Universidade Federal do Piauí, Teresina, Piauí, Brazil
- Departamento de Bioquímica e Farmacologia, Universidade Federal do Piauí, Teresina, Piauí, Brazil
| | | | | | - Thiago Henrique Napoleão
- Departamento de Bioquímica, Centro de Biociências, Universidade Federal de Pernambuco, Recife, Pernambuco, Brazil.
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Srinivasan S, Charan Raja MR, Kar A, Ramasamy A, Jayaraman A, Vadivel V, Kar Mahapatra S. Partial characterization of purified glycoprotein from nutshell of Arachis hypogea L. towards macrophage activation and leishmaniacidal activity. Glycoconj J 2023; 40:1-17. [PMID: 36595117 DOI: 10.1007/s10719-022-10096-2] [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: 05/05/2022] [Revised: 11/13/2022] [Accepted: 12/16/2022] [Indexed: 01/04/2023]
Abstract
Arachis hypogea L. protein fraction-2 (AHP-F2) from the Peanut shell was extracted and characterized and its potent immunomodulatory and anti-leishmanial role was determined in this present study. AHP-F2 was found to be a glycoprotein as the presence of carbohydrates were confirmed by the analysis of high-performance liquid chromatography (HPLC) yielded glucose, galactose, mannose, and xylose. AHP-F2 molecular mass was found to be ∼28 kDa as indicated in MALDI-TOF and peptide mass fingerprinting analysis followed by Mascot search. The peptide matches revealed the similarity of the mannose/glucose binding lectin with 71.07% in the BLAST analysis. After that, the 3D structure of the AHP-F2 model was designed and validated by the Ramachandran plot. The immunomodulatory role of AHP-F2 was established in murine peritoneal macrophages as induction of nitric oxide (NO), and stimulation of proinflammatory cytokines (IL-12 and IFN-γ) in a dose-dependent manner was observed. Interestingly, it was also found that AHP-F2 has interacted with the innate immune receptor, toll-like receptors (TLRs) as established in molecular docking as well as mRNA expression. The anti-leishmanial potential of AHP-F2 was revealed with a prominent inhibition of amastigote growth within the murine macrophages with prompt induction of nitrite release. Altogether, the isolated AHP-F2 from Arachis hypogea L. has strong immunomodulatory and anti-leishmanial potential which may disclose a new path to treat leishmaniasis.
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Affiliation(s)
- Sujatha Srinivasan
- Department of Biotechnology, School of Chemical and Biotechnology, SASTRA Deemed to be University, 613 401, Thanjavur, India
| | - Mamilla R Charan Raja
- Department of Biotechnology, School of Chemical and Biotechnology, SASTRA Deemed to be University, 613 401, Thanjavur, India
- Department of Biotechnology, Saveetha School of Engineering, Saveetha Institute of Medical and Technical Sciences, 600 077, Chennai, India
| | - Amrita Kar
- Department of Biotechnology, School of Chemical and Biotechnology, SASTRA Deemed to be University, 613 401, Thanjavur, India
| | - Aishwarya Ramasamy
- Department of Biotechnology, School of Chemical and Biotechnology, SASTRA Deemed to be University, 613 401, Thanjavur, India
| | - Adithyan Jayaraman
- Department of Biotechnology, School of Chemical and Biotechnology, SASTRA Deemed to be University, 613 401, Thanjavur, India
| | - Vellingiri Vadivel
- Department of Biotechnology, School of Chemical and Biotechnology, SASTRA Deemed to be University, 613 401, Thanjavur, India
| | - Santanu Kar Mahapatra
- Department of Biotechnology, School of Chemical and Biotechnology, SASTRA Deemed to be University, 613 401, Thanjavur, India.
- Department of Paramedical and Allied Health Sciences, Midnapore City College, West Bengal, 721129, Midnapore, India.
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Santana LN, Tavares LS, Dorvigny BM, Souza FDAL, Paiva BHDA, Evêncio-Neto J, Hounkonnou SGC, Silva AFB, Ramos MV, Lima-Filho JV. Anti-infective activity of Cratylia argentea lectin (CFL) against experimental infection with virulent Listeria monocytogenes in Swiss mice. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2022; 94:153839. [PMID: 34781231 DOI: 10.1016/j.phymed.2021.153839] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/26/2021] [Revised: 10/06/2021] [Accepted: 10/27/2021] [Indexed: 06/13/2023]
Abstract
BACKGROUND The lectin from Cratylia argentea (CFL) is able to modulate the immune system response and is thus a potential phytotherapeutic substance. HYPOTHESIS/PURPOSE In this study, we investigated the role of CFL on control of bacterial infection caused by Listeria monocytogenes, the causative agent of human listeriosis. STUDY DESIGN Swiss mice were infected with L. monocytogenes and then treated with CFL. METHODS Adult Swiss mice weighing with 30-40 g were infected intraperitoneally with a bacterial suspension (0.2 ml; 1 × 107 CFU/ml). After 30 min, the mice were treated with CFL intravenously at concentrations of 0.1 or 10 mg/kg. Control mice received phosphate-buffered saline (PBS). The animals were euthanized 24 h after infection. RESULTS We observed that i.v. administration of CFL to Swiss mice did not cause acute toxicity, and reduced the leukocyte counts in the bloodstream 24 h after infection with virulent L. monocytogenes. There was a reduction in the bacterial burden within peritoneal macrophages after infection in CFL-treated mice. Accordingly, the bacterial counts in the bloodstream, spleen and liver also decreased in comparison with the PBS group. Histological damage in the spleen and liver was lower in mice that received CFL treatment. In vitro antimicrobial assays demonstrated that CFL does not inhibit the growth of L. monocytogenes. The mRNA expression of the anti-inflammatory cytokine IL-10 was enhanced with CFL treatment after infection. CONCLUSION The lectin from C. argentea (CFL) has immunomodulatory and anti-infective properties of pharmacological interest for control of infectious diseases.
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Affiliation(s)
- Lucas Nunes Santana
- Department of Biology, Microbiology and Immunology Laboratory, Federal Rural University of Pernambuco, Dom Manoel de Medeiros, s/n, B. Dois Irmãos, Recife, PE CEP 52171-900, Brazil
| | - Lethicia Souza Tavares
- Department of Biology, Microbiology and Immunology Laboratory, Federal Rural University of Pernambuco, Dom Manoel de Medeiros, s/n, B. Dois Irmãos, Recife, PE CEP 52171-900, Brazil
| | - Betty Mancebo Dorvigny
- Department of Biology, Microbiology and Immunology Laboratory, Federal Rural University of Pernambuco, Dom Manoel de Medeiros, s/n, B. Dois Irmãos, Recife, PE CEP 52171-900, Brazil
| | | | | | - Joaquim Evêncio-Neto
- Department of Morphology and Animal Physiology, Federal Rural University of Pernambuco, Recife, PE, Brazil
| | | | | | - Márcio Viana Ramos
- Department of Biochemistry and Molecular Biology, Federal University of Ceará, Fortaleza, CE, Brazil
| | - Jose Vitor Lima-Filho
- Department of Biology, Microbiology and Immunology Laboratory, Federal Rural University of Pernambuco, Dom Manoel de Medeiros, s/n, B. Dois Irmãos, Recife, PE CEP 52171-900, Brazil.
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Tsaneva M, Van Damme EJM. 130 years of Plant Lectin Research. Glycoconj J 2020; 37:533-551. [PMID: 32860551 PMCID: PMC7455784 DOI: 10.1007/s10719-020-09942-y] [Citation(s) in RCA: 74] [Impact Index Per Article: 18.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2020] [Revised: 07/12/2020] [Accepted: 08/21/2020] [Indexed: 12/15/2022]
Abstract
Lectins are proteins with diverse molecular structures that share the ability to recognize and bind specifically and reversibly to carbohydrate structures without changing the carbohydrate moiety. The history of lectins started with the discovery of ricin about 130 years ago but since then our understanding of lectins has dramatically changed. Over the years the research focus was shifted from 'the characterization of carbohydrate-binding proteins' to 'understanding the biological function of lectins'. Nowadays plant lectins attract a lot of attention especially because of their potential for crop improvement and biomedical research, as well as their application as tools in glycobiology. The present review aims to give an overview of plant lectins and their applications, and how the field evolved in the last decades.
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Affiliation(s)
- Mariya Tsaneva
- Laboratory of Biochemistry and Glycobiology, Department of Biotechnology, Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, 9000, Ghent, Belgium
| | - Els J M Van Damme
- Laboratory of Biochemistry and Glycobiology, Department of Biotechnology, Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, 9000, Ghent, Belgium.
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Reis MVDP, Souza GLD, Soares PBF, Souza MAD, Soares CJ, Moura CCG. Effect of ScLL and 15d-PGJ2 on viability and cytokine release in LPS-stimulated fibroblasts: an in vitro study. Braz Oral Res 2020; 34:e013. [PMID: 32074213 DOI: 10.1590/1807-3107bor-2020.vol34.0013] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2019] [Accepted: 11/01/2019] [Indexed: 01/10/2023] Open
Abstract
This study evaluated the effect of a cyclopentenone-type PG, 15-Deoxy-Δ12,14-PG J2 (15d-PGJ2), and lectin (ScLL) on the viability of human gingival fibroblasts (HGFs), and on IL-6 and TGFβ-1 release by these fibroblasts, stimulated with lipopolysaccharide (LPS). HGFs were stimulated with LPS 10 μg/ml and treated with 15d-PGJ2 1 and 2 μg/ml, and ScLL 2 and 5 μg/ml, for 1 and 3h, and then evaluated for viability by MTT assay. Supernatant was collected to detect IL-6 and TGFβ-1 release, by ELISA. Positive control was cells kept in Dulbecco's Modified Eagle's Medium, and negative control was those kept in LPS. Data were analyzed by ANOVA and Dunnett's test (α = 0.05). No significant difference was found in viability among experimental groups at 1h (p > 0.05). Percentage of ScLL 5 µg/ml viable cells was similar to that of positive control at evaluated periods (p > 0.05), whereas the other groups had lower levels than the positive control (p < 0.05). IL-6 release was statistically higher for ScLL 5 μg/ml and 15d-PGJ2 2 µg/ml at 1h, compared with the other treated groups and positive control (p < 0.05). No significant differences were found among the groups at 3h (p > 0.05), except for ScLL 2 µg/ml and 15d-PGJ2 1 µg/ml, which showed lower IL-6 release compared with that of negative control (p < 0.05). No significant difference was found among the groups for TGFβ-1 release (p > 0.05). Results indicated that ScLL 5 μg/ml did not interfere in viability, and ScLL 2 µg/ml and 15d-PGJ2 1 µg/ml demonstrated reduced IL-6 release. Tested substances had no effect on TGFβ-1 release.
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Affiliation(s)
- Manuella Verdinelli de Paula Reis
- Universidade Federal de Uberlândia - UFU, School of Dentistry, Department of Operative Dentistry and Dental Materials, Uberlândia, MG, Brazil
| | - Gabriela Leite de Souza
- Universidade Federal de Uberlândia - UFU, School of Dentistry, Department of Endodontics, Uberlândia, MG, Brazil
| | - Priscilla Barbosa Ferreira Soares
- Universidade Federal de Uberlândia - UFU, School of Dentistry, Department of Oral and Maxillofacial Surgery and Implantology, Uberlândia, MG, Brazil
| | - Maria Aparecida de Souza
- Universidade Federal de Uberlândia - UFU, Institute of Biomedical Sciences, Department of Immunology, Uberlândia, MG, Brazil
| | - Carlos José Soares
- Universidade Federal de Uberlândia - UFU, School of Dentistry, Department of Operative Dentistry and Dental Materials, Uberlândia, MG, Brazil
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Overview of the role of kinetoplastid surface carbohydrates in infection and host cell invasion: prospects for therapeutic intervention. Parasitology 2019; 146:1743-1754. [PMID: 31603063 PMCID: PMC6939169 DOI: 10.1017/s0031182019001355] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Kinetoplastid parasites are responsible for serious diseases in humans and livestock such as Chagas disease and sleeping sickness (caused by Trypanosoma cruzi and Trypanosoma brucei, respectively), and the different forms of cutaneous, mucocutaneous and visceral leishmaniasis (produced by Leishmania spp). The limited number of antiparasitic drugs available together with the emergence of resistance underscores the need for new therapeutic agents with novel mechanisms of action. The use of agents binding to surface glycans has been recently suggested as a new approach to antitrypanosomal design and a series of peptidic and non-peptidic carbohydrate-binding agents have been identified as antiparasitics showing efficacy in animal models of sleeping sickness. Here we provide an overview of the nature of surface glycans in three kinetoplastid parasites, T. cruzi, T. brucei and Leishmania. Their role in virulence and host cell invasion is highlighted with the aim of identifying specific glycan-lectin interactions and carbohydrate functions that may be the target of novel carbohydrate-binding agents with therapeutic applications.
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Breitenbach Barroso Coelho LC, Marcelino Dos Santos Silva P, Felix de Oliveira W, de Moura MC, Viana Pontual E, Soares Gomes F, Guedes Paiva PM, Napoleão TH, Dos Santos Correia MT. Lectins as antimicrobial agents. J Appl Microbiol 2018; 125:1238-1252. [PMID: 30053345 DOI: 10.1111/jam.14055] [Citation(s) in RCA: 74] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2017] [Revised: 06/23/2018] [Accepted: 07/15/2018] [Indexed: 12/24/2022]
Abstract
The resistance of micro-organisms to antimicrobial agents has been a challenge to treat animal and human infections, and for environmental control. Lectins are natural proteins and some are potent antimicrobials through binding to carbohydrates on microbial surfaces. Oligomerization state of lectins can influence their biological activity and maximum binding capacity; the association among lectin polypeptide chains can alter the carbohydrate-lectin binding dissociation rate constants. Antimicrobial mechanisms of lectins include the pore formation ability, followed by changes in the cell permeability and latter, indicates interactions with the bacterial cell wall components. In addition, the antifungal activity of lectins is associated with the chitin-binding property, resulting in the disintegration of the cell wall or the arrest of de novo synthesis from the cell wall during fungal development or division. Quorum sensing is a cell-to-cell communication process that allows interspecies and interkingdom signalling which coordinate virulence genes; antiquorum-sensing therapies are described for animal and plant lectins. This review article, among other approaches, evaluates lectins as antimicrobials.
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Affiliation(s)
| | | | - W Felix de Oliveira
- Departamento de Bioquímica, Centro de Biociências, Universidade Federal de Pernambuco, Recife, Brazil
| | - M C de Moura
- Departamento de Bioquímica, Centro de Biociências, Universidade Federal de Pernambuco, Recife, Brazil
| | - E Viana Pontual
- Departamento de Morfologia e Fisiologia Animal, Universidade Federal Rural de Pernambuco, Recife, Brazil
| | - F Soares Gomes
- Instituto de Química e Biotecnologia, Universidade Federal de Alagoas, Maceió, Brazil
| | - P M Guedes Paiva
- Departamento de Bioquímica, Centro de Biociências, Universidade Federal de Pernambuco, Recife, Brazil
| | - T H Napoleão
- Departamento de Bioquímica, Centro de Biociências, Universidade Federal de Pernambuco, Recife, Brazil
| | - M T Dos Santos Correia
- Departamento de Bioquímica, Centro de Biociências, Universidade Federal de Pernambuco, Recife, Brazil
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Reis MVP, de Souza GL, Moura CCG, da Silva MV, Souza MA, Soares PBF, Soares CJ. Effects of Lectin (ScLL) on osteoclast-like multinucleated giant cells' maturation-A preliminary in vitro study. Dent Traumatol 2018; 34:329-335. [PMID: 29856524 DOI: 10.1111/edt.12412] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/28/2018] [Indexed: 11/30/2022]
Abstract
BACKGROUND/AIM Lectin (ScLL) has been recently evaluated in the oral cavity due to its anti-inflammatory activities. ScLL could be a promising agent for blocking osteoclast activity and preventing root resorption. The aim of this study was to evaluate the effect of ScLL on the viability of the RAW 264.7 macrophage lineage, osteoclast-like maturation and the release of TNF-α and nitric oxide (NO). MATERIALS AND METHODS The viability of RAW 264.7 cells was determined by MTT and Alamar Blue assays after ScLL treatment for 24 hours. ScLL effects on RANKL-induced osteoclast-like maturation were assessed by tartrate-resistant acid phosphatase (TRAP) staining and F-actin ring formation. The supernatant was collected to detect the release of TNF-α using ELISA and NO using a nitrite assay. RESULTS ScLL suppressed osteoclast-like maturation by decreasing TRAP activity as well as F-actin ring formation. ScLL at 10 μg/mL showed the highest values of NO release compared with all other groups (P < .05). Lower levels of TNF-α were found for the negative control. CONCLUSIONS ScLL at 5 μg/mL suppressed osteoclast-like maturation in vitro and had no cytotoxic effect on RAW cell cultures.
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Affiliation(s)
- Manuella V P Reis
- Biomechanics Research Group, Department of Operative Dentistry and Dental Materials, Federal University of Uberlândia, Uberlândia, Brazil
| | - Gabriela L de Souza
- Biomechanics Research Group, Department of Endodontics, Federal University of Uberlândia, Uberlândia, Brazil
| | - Camilla C G Moura
- Department of Endodontics, School of Dentistry, Federal University of Uberlândia, Uberlândia, Brazil
| | - Marcus V da Silva
- Department of Immunology, Institute of Biomedical Sciences, Federal University of Triângulo Mineiro, Uberaba, Brazil
| | - Maria A Souza
- Department of Immunology, Institute of Biomedical Sciences, Federal University of Uberlândia, Uberlândia, Brazil
| | - Priscilla B F Soares
- Department of Oral and Maxillofacial Surgery and Implantology, School of Dentistry, Federal University of Uberlândia, Uberlândia, Brazil
| | - Carlos J Soares
- Biomechanics Research Group, Department of Operative Dentistry and Dental Materials, Federal University of Uberlândia, Uberlândia, Brazil
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Ruas LP, Genaro LM, Justo-Junior AS, Coser LO, de Castro LF, Trabasso P, Mamoni RL, Roque-Barreira MC, Blotta MHSL. Effect of ArtinM on Human Blood Cells During Infection With Paracoccidioides brasiliensis. Front Microbiol 2018; 9:867. [PMID: 29780375 PMCID: PMC5945982 DOI: 10.3389/fmicb.2018.00867] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2018] [Accepted: 04/16/2018] [Indexed: 12/14/2022] Open
Abstract
Infections caused by fungi are prominent in our environment and can be potentially fatal. paracoccidioidomycosis (PCM), caused by fungi of the Paracoccidioides genus, is the most frequent systemic mycosis in Brazil and the main cause of death among immunocompetent individuals. The antifungal therapy for PCM is usually effective but side effects and relapses are often reported. The latter could be avoided with alternative or complementary therapies aimed at boosting the immune response to combat this pathogen. Recent reports have pointed at the importance of an effective cellular immune response, with the participation of Th1 cells, in the resistance to and control of Paracoccidioides infection. The ArtinM lectin, extracted from jackfruit (Artocarpus heterophyllus) seeds, exhibits immunomodulatory activity against several intracellular pathogens, including Paracoccidioides brasiliensis, by promoting the development of a Th1 immune response. The aim of this work was to characterize the effect of ArtinM on peripheral blood cells of patients with PCM and on those of control individuals infected with fungal yeasts cells in vitro. Our results demonstrate that ArtinM activates human neutrophils in vitro, leading to an increase in cytokine production and CD54 expression. ArtinM activated P. brasiliensis-infected neutrophils from both healthy individuals and patients with PCM. This activation was not dependent on the dectin-1 receptor, because pre-incubation with laminarin, a dectin-1 receptor blocker, did not reverse the activated state of the cells. ArtinM also stimulated human peripheral blood mononuclear cells to secrete pro-inflammatory Th1-related cytokines, which are protective against Paracoccidioides infection. These data support the immunostimulatory action of ArtinM and encourage new studies using the lectin for the immunotherapy of PCM.
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Affiliation(s)
- Luciana P Ruas
- Department of Clinical Pathology, School of Medical Sciences, State University of Campinas (UNICAMP), Campinas, Brazil
| | - Livia M Genaro
- Department of Clinical Pathology, School of Medical Sciences, State University of Campinas (UNICAMP), Campinas, Brazil
| | - Amauri S Justo-Junior
- Department of Clinical Pathology, School of Medical Sciences, State University of Campinas (UNICAMP), Campinas, Brazil
| | - Lilian O Coser
- Department of Clinical Pathology, School of Medical Sciences, State University of Campinas (UNICAMP), Campinas, Brazil
| | - Lívia F de Castro
- Department of Clinical Pathology, School of Medical Sciences, State University of Campinas (UNICAMP), Campinas, Brazil
| | - Plinio Trabasso
- Department of Internal Medicine, School of Medical Sciences, State University of Campinas (UNICAMP), Campinas, Brazil
| | - Ronei L Mamoni
- Department of Clinical Pathology, School of Medical Sciences, State University of Campinas (UNICAMP), Campinas, Brazil.,Department of Morphology and Basic Pathology, Faculty of Medicine of Jundiaí, Jundiaí, Brazil
| | - Maria-Cristina Roque-Barreira
- Department of Cell and Molecular Biology, Medical School of Ribeirão Preto, University of São Paulo, Ribeirão Preto, Brazil
| | - Maria-Heloisa S L Blotta
- Department of Clinical Pathology, School of Medical Sciences, State University of Campinas (UNICAMP), Campinas, Brazil
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de Medeiros MLS, de Moura MC, Napoleão TH, Paiva PMG, Coelho LCBB, Bezerra ACDS, da Silva MDC. Nematicidal activity of a water soluble lectin from seeds of Moringa oleifera. Int J Biol Macromol 2017; 108:782-789. [PMID: 29122715 DOI: 10.1016/j.ijbiomac.2017.10.167] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2017] [Revised: 10/23/2017] [Accepted: 10/24/2017] [Indexed: 01/17/2023]
Abstract
Gastrointestinal nematodes are the major cause of animal diseases, and the indiscriminate use of synthetic anthelmintic contributes to the development of drug resistance. Natural bioproducts are noteworthy since they have proved to be promising for alternative antiparasitic therapies. This study evaluated the in vitro effect of WSMoL (water soluble Moringa oleifera lectin) on hatching of eggs and on the development of early-stage larvae of gastrointestinal nematodes from naturally infected goats. In addition, the interference of WSMoL on activity of proteases was determined and the affinity of the lectin for glycosylated molecules of these parasites was investigated using fluorescein isothiocyanate (FITC)-labeled WSMoL. WSMoL at 250μgmL-1 interfered on hatching of eggs (40.4% of not hatched eggs; p=0.018), and on larval development (stages L1-L3) (IC50 of 78.22μgmL-1). The activity of secreted proteases showed a significant increase in the presence of WSMoL (307.14U/mg-1031U/mg). FITC-labeled WSMoL recognized embryonic egg content and larval content after hatching, which suggests that WSMoL interact with intestinal glycoconjugate receptors in the embryo, as well as in cuticle of the larvae.
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Affiliation(s)
- Mário Luan Silva de Medeiros
- Departamento de Ciências Biomédicas, Faculdade de Ciências da Saúde, Universidade do Estado do Rio Grande do Norte, Atirador Miguel Antônio da Silva Neto, s/n, Aeroporto, 59607-360, Mossoró, Rio Grande do Norte, Brazil.
| | - Maiara Celine de Moura
- Departamento de Bioquímica, Centro de Biociências, Universidade Federal de Pernambuco, Av. Professor Morais Rego, s/n, Cidade Universitária, 50670-901, Recife, Pernambuco, Brazil.
| | - Thiago Henrique Napoleão
- Departamento de Bioquímica, Centro de Biociências, Universidade Federal de Pernambuco, Av. Professor Morais Rego, s/n, Cidade Universitária, 50670-901, Recife, Pernambuco, Brazil.
| | - Patrícia Maria Guedes Paiva
- Departamento de Bioquímica, Centro de Biociências, Universidade Federal de Pernambuco, Av. Professor Morais Rego, s/n, Cidade Universitária, 50670-901, Recife, Pernambuco, Brazil.
| | - Luana Cassandra Breitenbach Barroso Coelho
- Departamento de Bioquímica, Centro de Biociências, Universidade Federal de Pernambuco, Av. Professor Morais Rego, s/n, Cidade Universitária, 50670-901, Recife, Pernambuco, Brazil.
| | - Ana Carla Diógenes Suassuna Bezerra
- Departamento de Biociências, Centro de Ciências Biológicas e da Saúde, Universidade Federal Rural do Semi-Árido, Av. Francisco Mota, 572, Costa e Silva, 59625-900, Mossoró, Rio Grande do Norte, Brazil.
| | - Michele Dalvina Correia da Silva
- Departamento de Biociências, Centro de Ciências Biológicas e da Saúde, Universidade Federal Rural do Semi-Árido, Av. Francisco Mota, 572, Costa e Silva, 59625-900, Mossoró, Rio Grande do Norte, Brazil.
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12
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Jandú JJB, Moraes Neto RN, Zagmignan A, de Sousa EM, Brelaz-de-Castro MCA, Dos Santos Correia MT, da Silva LCN. Targeting the Immune System with Plant Lectins to Combat Microbial Infections. Front Pharmacol 2017; 8:671. [PMID: 29046636 PMCID: PMC5632806 DOI: 10.3389/fphar.2017.00671] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2017] [Accepted: 09/07/2017] [Indexed: 12/21/2022] Open
Abstract
The arsenal of drugs available to treat infections caused by eukaryotic and prokaryotic microbes has been declining exponentially due to antimicrobial resistance phenomenon, leading to an urgent need to develop new therapeutic strategies. Host-directed immunotherapy has been reported as an attractive option to treat microbial infections. It consists in the improvement of host defenses by increasing the expression of inflammatory mediators and/or controlling of inflammation-induced tissue injury. Although the in vitro antimicrobial and immunomodulatory activities of lectins have been extensively demonstrated, few studies have evaluated their in vivo effects on experimental models of infections. This review aims to highlight the experimental use of immunomodulatory plant lectins to improve the host immune response against microbial infections. Lectins have been used in vivo both prophylactically and therapeutically resulting in the increased survival of mice under microbial challenge. Other studies successfully demonstrated that lectins could be used in combination with parasite antigens in order to induce a more efficient immunization. Therefore, these plant lectins represent new candidates for management of microbial infections. Furthermore, immunotherapeutic studies have improved our knowledge about the mechanisms involved in host–pathogen interactions, and may also help in the discovery of new drug targets.
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Affiliation(s)
- Jannyson J B Jandú
- Departamento de Bioquímica, Centro de Biociências, Universidade Federal de Pernambuco, Recife, Brazil
| | | | - Adrielle Zagmignan
- Pós-Graduação em Biologia Parasitária, Universidade Ceuma, São Luís, Brazil
| | - Eduardo M de Sousa
- Pós-Graduação em Biologia Parasitária, Universidade Ceuma, São Luís, Brazil
| | | | | | - Luís C N da Silva
- Pós-Graduação em Biologia Parasitária, Universidade Ceuma, São Luís, Brazil
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13
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Palharini JG, Richter AC, Silva MF, Ferreira FB, Pirovani CP, Naves KSC, Goulart VA, Mineo TWP, Silva MJB, Santiago FM. Eutirucallin: A Lectin with Antitumor and Antimicrobial Properties. Front Cell Infect Microbiol 2017; 7:136. [PMID: 28487845 PMCID: PMC5403948 DOI: 10.3389/fcimb.2017.00136] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2016] [Accepted: 03/31/2017] [Indexed: 11/13/2022] Open
Abstract
Eutirucallin is a lectin isolated from the latex of Euphorbia tirucalli, a plant known for its medical properties. The present study explores various characteristics of Eutirucallin including stability, cytotoxicity against tumor cells, antimicrobial and antiparasitic activities. Eutirucallin was stable from 2 to 40 days at 4°C, maintained hemagglutinating activity within a restricted range, and showed optimal activity at pH 7.0–8.0. Eutirucallin presented antiproliferative activity for HeLa, PC3, MDA-MB-231, and MCF-7 tumor cells but was not cytotoxic for non-tumorigenic cells such as macrophages and fibroblasts. Eutirucallin inhibited the Ehrlich ascites carcinoma in vivo and it was also observed that Eutirucallin inhibited 62.5% of Escherichia coli growth. Also, Eutirucallin showed to be effective when tested directly against Toxoplasma gondii infection in vitro. Therefore, this study sheds perspectives for pharmacological applications of Eutirucallin.
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Affiliation(s)
- Julio G Palharini
- Laboratory of Immunoparasitology "Dr. Mario Endsfeldz Camargo", Institute of Biomedical Sciences, Federal University of UberlândiaUberlândia, Brazil
| | - Aline C Richter
- Laboratory of Immunoparasitology "Dr. Mario Endsfeldz Camargo", Institute of Biomedical Sciences, Federal University of UberlândiaUberlândia, Brazil
| | - Mariana F Silva
- Laboratory of Immunoparasitology "Dr. Mario Endsfeldz Camargo", Institute of Biomedical Sciences, Federal University of UberlândiaUberlândia, Brazil
| | - Flavia B Ferreira
- Laboratory of Immunoparasitology "Dr. Mario Endsfeldz Camargo", Institute of Biomedical Sciences, Federal University of UberlândiaUberlândia, Brazil
| | - Carlos P Pirovani
- Biological Sciences Department, State University of Santa CruzIlhéus, Brazil
| | - Karinne S C Naves
- Laboratory of Clinical Bacteriology, Institute of Biomedical Sciences, Federal University of UberlândiaUberlândia, Brazil
| | - Vivian A Goulart
- Laboratory of Nanobiotechnology, Institute of Genetics and Biochemistry, Federal University of UberlândiaUberlândia, Brazil
| | - Tiago W P Mineo
- Laboratory of Immunoparasitology "Dr. Mario Endsfeldz Camargo", Institute of Biomedical Sciences, Federal University of UberlândiaUberlândia, Brazil
| | - Marcelo J B Silva
- Laboratory of Tumor Biomarkers and Osteoimmunology, Institute of Biomedical Sciences, Federal University of UberlândiaUberlândia, Brazil
| | - Fernanda M Santiago
- Laboratory of Immunoparasitology "Dr. Mario Endsfeldz Camargo", Institute of Biomedical Sciences, Federal University of UberlândiaUberlândia, Brazil
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14
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Coelho LCBB, Silva PMDS, Lima VLDM, Pontual EV, Paiva PMG, Napoleão TH, Correia MTDS. Lectins, Interconnecting Proteins with Biotechnological/Pharmacological and Therapeutic Applications. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE : ECAM 2017; 2017:1594074. [PMID: 28367220 PMCID: PMC5359455 DOI: 10.1155/2017/1594074] [Citation(s) in RCA: 89] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/06/2016] [Revised: 01/21/2017] [Accepted: 02/06/2017] [Indexed: 11/18/2022]
Abstract
Lectins are proteins extensively used in biomedical applications with property to recognize carbohydrates through carbohydrate-binding sites, which identify glycans attached to cell surfaces, glycoconjugates, or free sugars, detecting abnormal cells and biomarkers related to diseases. These lectin abilities promoted interesting results in experimental treatments of immunological diseases, wounds, and cancer. Lectins obtained from virus, microorganisms, algae, animals, and plants were reported as modulators and tool markers in vivo and in vitro; these molecules also play a role in the induction of mitosis and immune responses, contributing for resolution of infections and inflammations. Lectins revealed healing effect through induction of reepithelialization and cicatrization of wounds. Some lectins have been efficient agents against virus, fungi, bacteria, and helminths at low concentrations. Lectin-mediated bioadhesion has been an interesting characteristic for development of drug delivery systems. Lectin histochemistry and lectin-based biosensors are useful to detect transformed tissues and biomarkers related to disease occurrence; antitumor lectins reported are promising for cancer therapy. Here, we address lectins from distinct sources with some biological effect and biotechnological potential in the diagnosis and therapeutic of diseases, highlighting many advances in this growing field.
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Affiliation(s)
| | - Priscila Marcelino dos Santos Silva
- Departamento de Bioquímica, Centro de Biociências, Universidade Federal de Pernambuco, Av. Prof. Moraes Rego 1235, Cidade Universitária, 50.670-901 Recife, PE, Brazil
| | - Vera Lúcia de Menezes Lima
- Departamento de Bioquímica, Centro de Biociências, Universidade Federal de Pernambuco, Av. Prof. Moraes Rego 1235, Cidade Universitária, 50.670-901 Recife, PE, Brazil
| | - Emmanuel Viana Pontual
- Departamento de Morfologia e Fisiologia Animal, Universidade Federal Rural de Pernambuco, Rua Dom Manuel de Medeiros, s/n, Dois Irmãos, 52171-900 Recife, PE, Brazil
| | - Patrícia Maria Guedes Paiva
- Departamento de Bioquímica, Centro de Biociências, Universidade Federal de Pernambuco, Av. Prof. Moraes Rego 1235, Cidade Universitária, 50.670-901 Recife, PE, Brazil
| | - Thiago Henrique Napoleão
- Departamento de Bioquímica, Centro de Biociências, Universidade Federal de Pernambuco, Av. Prof. Moraes Rego 1235, Cidade Universitária, 50.670-901 Recife, PE, Brazil
| | - Maria Tereza dos Santos Correia
- Departamento de Bioquímica, Centro de Biociências, Universidade Federal de Pernambuco, Av. Prof. Moraes Rego 1235, Cidade Universitária, 50.670-901 Recife, PE, Brazil
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15
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Reis MVDP, Moura CCG, Silva MVD, Souza MAD, Soares PBF, Soares CJ. Effect of lectin (ScLL) on fibroblasts stimulated with LPS - an in vitro study. Braz Oral Res 2016; 30:e140. [PMID: 28001248 DOI: 10.1590/1807-3107bor-2016.vol30.0140] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2015] [Accepted: 11/11/2016] [Indexed: 01/10/2023] Open
Abstract
The lectin (ScLL) extracted from the Synadenium carinatum plant has been evaluated as an immunomodulator in diseases such as asthma, neosporosis and leishmaniasis. However, it has not yet been evaluated in the oral cavity. This study evaluated the effect of ScLL on viability, proliferation and release of IL-10 in human gingival fibroblasts (HGF) stimulated with lipopolysaccharide (LPS). HGF were stimulated with LPS 1 µg/ml and treated with ScLL in concentrations of 10, 5 and 2 µg/ml for 1 and 5 h, and evaluated by flow cytometry for viability, apoptosis (initial/advanced) and necrosis. The supernatant was collected to detect release of IL-10 by ELISA. The proliferation was assessed with the BrdU assay. Positive control consisted of cells maintained in Dulbecco's Modified Eagles Medium (DMEM), and the negative control, of those kept in tap water. Data were analyzed by ANOVA and Dunnett's test (α = 0.05). No significant difference was found for ScLL concentrations regarding viability or initial and advanced apoptosis (p=0.455). All the groups, including the positive control, had a significantly lower necrosis parameter than negative control at 5 h (p < 0.001). No difference was found for proliferation among the experimental groups (p = 0.832). ScLL at 5 and 2 µg/ml resulted in a lower release of IL-10 than positive and negative controls at 5 h (p = 0.047). The results indicated that ScLL concentrations tested were not cytotoxic, and had no effect on proliferation and release of IL-10 parameters. A thorough understanding of ScLL, regarding its immunomodulatory potential, may open the door to new perspectives for dentistry.
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Affiliation(s)
- Manuella Verdinelli de Paula Reis
- Universidade Federal de Uberlândia - UFU, School of Dentistry, Biomechanics Research Group, Department of Operative Dentistry and Dental Materials, Uberlândia, MG, Brazil
| | - Camilla Christian Gomes Moura
- Universidade Federal de Uberlândia - UFU, School of Dentistry, Biomechanics Research Group, Department of Endodontics, Uberlândia, MG, Brazil
| | - Marcus Vinicius da Silva
- Universidade Federal do Triângulo Mineiro - UFTM, Institute of Biomedical Sciences, Department of Immunology, Uberaba, MG, Brazil
| | - Maria Aparecida de Souza
- Universidade Federal de Uberlândia - UFU, Institute of Biomedical Sciences, Department of Immunology, Uberlândia, MG, Brazil
| | - Priscilla Barbosa Ferreira Soares
- Universidade Federal de Uberlândia - UFU, School of Dentistry, Biomechanics Research Group, Department of Periodontology and Implantology, Uberlândia, MG, Brazil
| | - Carlos José Soares
- Universidade Federal de Uberlândia - UFU, School of Dentistry, Biomechanics Research Group, Department of Operative Dentistry and Dental Materials, Uberlândia, MG, Brazil
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16
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Duarte MC, Tavares GSV, Valadares DG, Lage DP, Ribeiro TG, Lage LMR, Rodrigues MR, Faraco AAG, Soto M, da Silva ES, Chávez Fumagalli MA, Tavares CAP, Leite JPV, Oliveira JS, Castilho RO, Coelho EAF. Antileishmanial activity and mechanism of action from a purified fraction of Zingiber officinalis Roscoe against Leishmania amazonensis. Exp Parasitol 2016; 166:21-8. [PMID: 27013260 DOI: 10.1016/j.exppara.2016.03.026] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2015] [Revised: 03/18/2016] [Accepted: 03/20/2016] [Indexed: 02/06/2023]
Abstract
In recent years, considerable attention has been given to identify new antileishmanial products derived from medicinal plants, although, to date, no new effective compound has been recently applied to treat leishmaniasis. In the present study, the antileishmanial activity of a water extract from Zingiber officinalis Roscoe (ginger) was investigated and a purified fraction, named F10, was identified as responsible by this biological activity. The chemical characterization performed for this fraction showed that it is mainly composed by flavonoids and saponins. The water extract and the F10 fraction presented IC50 values of 125.5 and 49.8 μg/mL, respectively. Their selectivity indexes (SI) were calculated and values were seven and 40 times higher, respectively, in relation to the value found for amphotericin B, which was used as a control. Additional studies were performed to evaluate the toxicity of these compounds in human red blood cells, besides of the production of nitrite, as an indicator of nitric oxide (NO), in treated and infected macrophages. The results showed that both F10 fraction and water extract were not toxic to human cells, and they were able to stimulate the nitrite production, with values of 13.6 and 5.4 μM, respectively, suggesting that their biological activity could be due to macrophages activation via NO production. In conclusion, the present study shows that a purified fraction from ginger could be evaluated in future works as a therapeutic alternative, on its own or in association with other drugs, to treat disease caused by L. amazonensis.
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Affiliation(s)
- Mariana C Duarte
- Programa de Pós-Graduação em Ciências da Saúde, Infectologia e Medicina Tropical, Faculdade de Medicina, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil; Departamento de Patologia Clínica, COLTEC, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Grasiele S V Tavares
- Laboratório de Doenças infecto-parasitárias and Programa de Pós-Graduação em Biotecnologia, Campus Centro Oeste Dona Lindu, Universidade Federal De São João Del-Rei, Divinópolis, Minas Gerais, Brazil
| | - Diogo G Valadares
- Departamento de Bioquímica e Imunologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Daniela P Lage
- Programa de Pós-Graduação em Ciências da Saúde, Infectologia e Medicina Tropical, Faculdade de Medicina, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Tatiana G Ribeiro
- Programa de Pós-Graduação em Ciências Farmacêuticas, Faculdade de Farmácia, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Letícia M R Lage
- Departamento de Patologia Clínica, COLTEC, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Marcella R Rodrigues
- Departamento de Patologia Clínica, COLTEC, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - André A G Faraco
- Programa de Pós-Graduação em Ciências Farmacêuticas, Faculdade de Farmácia, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil; Departamento de Produtos Farmacêuticos, Faculdade de Farmácia, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Manuel Soto
- Centro de Biología Molecular Severo Ochoa, CSIC-UAM, Departamento de Biología Molecular, Universidad Autónoma de Madrid, Madrid, Spain
| | - Eduardo S da Silva
- Laboratório de Doenças infecto-parasitárias and Programa de Pós-Graduação em Biotecnologia, Campus Centro Oeste Dona Lindu, Universidade Federal De São João Del-Rei, Divinópolis, Minas Gerais, Brazil
| | - Miguel A Chávez Fumagalli
- Programa de Pós-Graduação em Ciências da Saúde, Infectologia e Medicina Tropical, Faculdade de Medicina, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Carlos A P Tavares
- Departamento de Bioquímica e Imunologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - João Paulo V Leite
- Departamento de Bioquímica e Biologia Molecular, Universidade Federal de Viçosa, Viçosa, Minas Gerais, Brazil
| | - Jamil S Oliveira
- Laboratório de Doenças infecto-parasitárias and Programa de Pós-Graduação em Biotecnologia, Campus Centro Oeste Dona Lindu, Universidade Federal De São João Del-Rei, Divinópolis, Minas Gerais, Brazil
| | - Rachel O Castilho
- Programa de Pós-Graduação em Ciências Farmacêuticas, Faculdade de Farmácia, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil; Departamento de Produtos Farmacêuticos, Faculdade de Farmácia, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Eduardo A F Coelho
- Programa de Pós-Graduação em Ciências da Saúde, Infectologia e Medicina Tropical, Faculdade de Medicina, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil; Departamento de Patologia Clínica, COLTEC, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil.
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17
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da Silva LCN, Correia MTS. Plant lectins and Toll-like receptors: implications for therapy of microbial infections. Front Microbiol 2014; 5:20. [PMID: 24550893 PMCID: PMC3909824 DOI: 10.3389/fmicb.2014.00020] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2013] [Accepted: 01/13/2014] [Indexed: 12/15/2022] Open
Affiliation(s)
- Luís C N da Silva
- Departamento de Bioquímica, Universidade Federal de Pernambuco Recife, Brazil
| | - Maria T S Correia
- Departamento de Bioquímica, Universidade Federal de Pernambuco Recife, Brazil
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18
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Strychnos pseudoquina and Its Purified Compounds Present an Effective In Vitro Antileishmanial Activity. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2013; 2013:304354. [PMID: 24194781 PMCID: PMC3806161 DOI: 10.1155/2013/304354] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/03/2013] [Accepted: 08/28/2013] [Indexed: 12/02/2022]
Abstract
The development of new and cost-effective alternative therapeutic strategies to treat leishmaniasis has become a high priority. In the present study, the antileishmanial activity of Strychnos pseudoquina St. Hil. was investigated and pure compounds that presented this biological effect were isolated. An ethyl acetate extract was prepared, and it proved to be effective against Leishmania amazonensis. A bioactivity-guided fractionation was performed, and two flavonoids were identified, quercetin 3-O-methyl ether and strychnobiflavone, which presented an effective antileishmanial activity against L. amazonensis, and studies were extended to establish their minimum inhibitory concentrations (IC50), their leishmanicidal effects on the intra-macrophage Leishmania stage, as well as their cytotoxic effects on murine macrophages (CC50), and in O+ human red blood cells. The data presented in this study showed the potential of an ethyl acetate extract of S. pseudoquina, as well as two flavonoids purified from it, which can be used as a therapeutic alternative on its own, or in association with other drugs, to treat disease evoked by L. amazonensis.
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19
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Cardoso MRD, Mota CM, Ribeiro DP, Noleto PG, Andrade WBF, Souza MA, Silva NM, Mineo TWP, Mineo JR, Silva DAO. Adjuvant and immunostimulatory effects of a D-galactose-binding lectin from Synadenium carinatum latex (ScLL) in the mouse model of vaccination against neosporosis. Vet Res 2012; 43:76. [PMID: 23107170 PMCID: PMC3583070 DOI: 10.1186/1297-9716-43-76] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2012] [Accepted: 10/10/2012] [Indexed: 11/10/2022] Open
Abstract
Vaccination is an important control measure for neosporosis that is caused by a coccidian parasite, Neospora caninum, leading to abortion and reproductive disorders in cattle and serious economic impacts worldwide. A D-galactose-binding lectin from Synadenium carinatum latex (ScLL) was recently described by our group with potential immunostimulatory and adjuvant effects in the leishmaniasis model. In this study, we evaluated the adjuvant effect of ScLL in immunization of mice against neosporosis. First, we investigated in vitro cytokine production by dendritic cells stimulated with Neospora lysate antigen (NLA), ScLL or both. Each treatment induced TNF-α, IL-6, IL-10 and IL-12 production in a dose-dependent manner, with synergistic effect of NLA plus ScLL. Next, four groups of C57BL/6 mice were immunized with NLA + ScLL, NLA, ScLL or PBS. The kinetics of antibody response showed a predominance of IgG and IgG1 for NLA + ScLL group, whereas IgG2a response was similar between NLA + ScLL and NLA groups. Ex vivo cytokine production by mouse spleen cells showed the highest IFN-γ/IL-10 ratio in the presence of NLA stimulation for mice immunized with NLA + ScLL and the lowest for those immunized with ScLL alone. After parasite challenge, mice immunized with NLA + ScLL or ScLL alone presented higher survival rates (70-80%) and lower brain parasite burden as compared to PBS group, but with no significant changes in morbidity and inflammation scores. In conclusion, ScLL combined with NLA was able to change the cytokine profile induced by the antigen or lectin alone for a Th1-biased immune response, resulting in high protection of mice challenged with the parasite, but with low degree of inflammation. Both features may be important to prevent congenital neosporosis, since protection and low inflammatory response are necessary events to guide towards a successful pregnancy.
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Affiliation(s)
- Mariana R D Cardoso
- Laboratory of Immunoparasitology, Institute of Biomedical Sciences, Federal University of Uberlandia, Av Pará 1720, Campus Umuarama, 38400-902, Uberlândia, MG, Brazil.
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