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Chaves RP, Dos Santos AKB, Andrade AL, Pinheiro ADA, Silva JMDS, da Silva FMS, de Sousa JP, Barroso Neto IL, Bezerra EHS, Abreu JO, de Carvalho FCT, de Sousa OV, de Sousa BL, da Rocha BAM, Silva ALC, do Nascimento Neto LG, de Vasconcelos MA, Teixeira EH, Carneiro RF, Sampaio AH, Nagano CS. Structural study and antimicrobial and wound healing effects of lectin from Solieria filiformis (Kützing) P.W.Gabrielson. Biochimie 2023; 214:61-76. [PMID: 37301421 DOI: 10.1016/j.biochi.2023.05.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2023] [Revised: 05/12/2023] [Accepted: 05/29/2023] [Indexed: 06/12/2023]
Abstract
The SfL-1 isoform from the marine red algae Solieria filiformis was produced in recombinant form (rSfL-1) and showed hemagglutinating activity and inhibition similar to native SfL. The analysis of circular dichroism revealed the predominance of β-strands structures with spectra of βI-proteins for both lectins, which had Melting Temperature (Tm) between 41 °C and 53 °C. The three-dimensional structure of the rSfL-1 was determined by X-ray crystallography, revealing that it is composed of two β-barrel domains formed by five antiparallel β chains linked by a short peptide between the β-barrels. SfL and rSfL-1 were able to agglutinate strains of Escherichia coli and Staphylococcus aureus and did not show antibacterial activity. However, SfL induced a reduction in E. coli biomass at concentrations from 250 to 125 μg mL-1, whereas rSfL-1 induced reduction in all concentrations tested. Additionally, rSfL-1 at concentrations from 250 to 62.5 μg mL-1, showed a statistically significant reduction in the number of colony-forming units, which was not noticed for SfL. Wound healing assay showed that the treatments with SfL and rSfL-1 act in reducing the inflammatory response and in the activation and proliferation of fibroblasts by a larger and fast deposition of collagen.
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Affiliation(s)
- Renata Pinheiro Chaves
- Departamento de Engenharia de Pesca, Universidade Federal do Ceará, Campus do Pici, Fortaleza, Ceará, Brazil
| | | | - Alexandre Lopes Andrade
- Departamento de Patologia e Medicina Legal, Universidade Federal do Ceará, Campus do Porangabuçu, Fortaleza, Ceará, Brazil
| | - Aryane de Azevedo Pinheiro
- Departamento de Patologia e Medicina Legal, Universidade Federal do Ceará, Campus do Porangabuçu, Fortaleza, Ceará, Brazil; Curso de Medicina, Centro Universitário INTA, UNINTA, Itapipoca, CE, Brazil
| | | | | | - Jucilene Pereira de Sousa
- Departamento de Bioquímica e Biologia Molecular, Universidade Federal do Ceará, Campus do Pici, Fortaleza, Ceará, Brazil
| | - Ito Liberato Barroso Neto
- Departamento de Bioquímica e Biologia Molecular, Universidade Federal do Ceará, Campus do Pici, Fortaleza, Ceará, Brazil; Curso de Medicina, Centro Universitário Unichristus, Fortaleza, Ceará, Brazil
| | - Eduardo Henrique Salviano Bezerra
- Departamento de Bioquímica e Biologia Molecular, Universidade Federal do Ceará, Campus do Pici, Fortaleza, Ceará, Brazil; Laboratório Nacional de Biociências, Centro Nacional de Pesquisa em Energia e Materiais, Cidade Universitária, Campinas, São Paulo, Brazil
| | - Jade Oliveira Abreu
- Instituto de Ciências do Mar - Labomar, Universidade Federal do Ceará, Fortaleza, CE, Brazil
| | | | - Oscarina Viana de Sousa
- Instituto de Ciências do Mar - Labomar, Universidade Federal do Ceará, Fortaleza, CE, Brazil
| | - Bruno Lopes de Sousa
- Faculdade de Filosofia Dom Aureliano Matos, Universidade Estadual do Ceará, Limoeiro do Norte, CE, Brazil
| | - Bruno Anderson Matias da Rocha
- Departamento de Bioquímica e Biologia Molecular, Universidade Federal do Ceará, Campus do Pici, Fortaleza, Ceará, Brazil
| | - André Luis Coelho Silva
- Departamento de Bioquímica e Biologia Molecular, Universidade Federal do Ceará, Campus do Pici, Fortaleza, Ceará, Brazil
| | - Luiz Gonzaga do Nascimento Neto
- Departamento de Patologia e Medicina Legal, Universidade Federal do Ceará, Campus do Porangabuçu, Fortaleza, Ceará, Brazil; Curso de Licenciatura em Ciências Biológicas, Instituto Federal de Educação, Ciência e Tecnologia do Ceará, Campus Acaraú, Acaraú, CE, Brazil
| | - Mayron Alves de Vasconcelos
- Departamento de Patologia e Medicina Legal, Universidade Federal do Ceará, Campus do Porangabuçu, Fortaleza, Ceará, Brazil; Universidade do Estado de Minas Gerais, Unidade de Divinopolis, Divinopolis, MG, Brazil
| | - Edson Holanda Teixeira
- Departamento de Patologia e Medicina Legal, Universidade Federal do Ceará, Campus do Porangabuçu, Fortaleza, Ceará, Brazil
| | - Rômulo Farias Carneiro
- Departamento de Engenharia de Pesca, Universidade Federal do Ceará, Campus do Pici, Fortaleza, Ceará, Brazil
| | - Alexandre Holanda Sampaio
- Departamento de Engenharia de Pesca, Universidade Federal do Ceará, Campus do Pici, Fortaleza, Ceará, Brazil
| | - Celso Shiniti Nagano
- Departamento de Engenharia de Pesca, Universidade Federal do Ceará, Campus do Pici, Fortaleza, Ceará, Brazil.
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Duarte JDA, Oliveira Neto JED, Torres RCF, Sousa ARDO, Andrade AL, Chaves RP, Carneiro RF, Vasconcelos MAD, Teixeira CS, Teixeira EH, Nagano CS, Sampaio AH. Structural characterization of a galectin from the marine sponge Aplysina lactuca (ALL) with synergistic effects when associated with antibiotics against bacteria. Biochimie 2023; 214:165-175. [PMID: 37437685 DOI: 10.1016/j.biochi.2023.07.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2023] [Revised: 06/12/2023] [Accepted: 07/07/2023] [Indexed: 07/14/2023]
Abstract
Lectins presents the ability to interact with glycans and trigger varied responses, including the inhibition of the development of various pathogens. Structural studies of these proteins are essential to better understand their functions. In marine sponges, so far only a few lectins have their primary structures completely determined. Thus, the objective of this work was to structurally characterize and evaluate antibacterial potential, in association with different antibiotics, of the lectin isolated from the marine sponge Aplysina lactuta (ALL). ALL is a homotetramer of 60 kDa formed by four 15 kDa-subunits. The lectin showed affinity only for the glycoproteins fetuin, asialofetuin, mucin type III, and bovine submaxillary mucin type I. The complete amino acid sequences of two isoforms of ALL, named ALL-a and ALL-b, were determined by a combination of Edman degradation and overlapped peptides sequenced by tandem mass spectrometry. ALL-a and ALL-b have 144 amino acids with molecular masses of 15,736 Da and 15,985 Da, respectively. Both structures contain conserved residues typical of the galectin family. ALL is a protein with antibacterial potential, when in association with ampicillin and oxacillin the lectin potentiates its antibiotic effect, included Methicillin-resistant Staphylococcus strains. Thus, ALL shows to be a molecule with potential for the development of new antibacterial drugs.
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Affiliation(s)
- Jéssica de Assis Duarte
- Marine Biotecnology Laboratory - BioMar-Lab, Departament of Fishing Engineering S/N, Bloco 871, 60440-970, Fortaleza-CE, Brazil
| | - José Eduardo de Oliveira Neto
- Marine Biotecnology Laboratory - BioMar-Lab, Departament of Fishing Engineering S/N, Bloco 871, 60440-970, Fortaleza-CE, Brazil
| | - Renato Cézar Farias Torres
- Marine Biotecnology Laboratory - BioMar-Lab, Departament of Fishing Engineering S/N, Bloco 871, 60440-970, Fortaleza-CE, Brazil
| | | | - Alexandre Lopes Andrade
- Integrated Biomolecules Laboratory - LIBS, Departament of Pathology and Legal Medicine, Federal University of Ceará S/N, Monsenhor Furtado, 60430-160, Fortaleza, CE, Brazil
| | - Renata Pinheiro Chaves
- Marine Biotecnology Laboratory - BioMar-Lab, Departament of Fishing Engineering S/N, Bloco 871, 60440-970, Fortaleza-CE, Brazil
| | - Rômulo Farias Carneiro
- Marine Biotecnology Laboratory - BioMar-Lab, Departament of Fishing Engineering S/N, Bloco 871, 60440-970, Fortaleza-CE, Brazil
| | - Mayron Alves de Vasconcelos
- Integrated Biomolecules Laboratory - LIBS, Departament of Pathology and Legal Medicine, Federal University of Ceará S/N, Monsenhor Furtado, 60430-160, Fortaleza, CE, Brazil; State University of Minas Gerais, Unidade de Divinópolis, 35501-170, Divinópolis, MG, Brazil; Faculdade de Ciências Exatas e Naturais Universidade Do Estado Do Rio Grande Do Norte, 59610-210, Mossoró, RN, Brazil
| | - Claudener Souza Teixeira
- Center for Agricutural Scienses and Biodiversity, Federal University of Cariri, Crato, CE, Brazil
| | - Edson Holanda Teixeira
- Integrated Biomolecules Laboratory - LIBS, Departament of Pathology and Legal Medicine, Federal University of Ceará S/N, Monsenhor Furtado, 60430-160, Fortaleza, CE, Brazil
| | - Celso Shiniti Nagano
- Marine Biotecnology Laboratory - BioMar-Lab, Departament of Fishing Engineering S/N, Bloco 871, 60440-970, Fortaleza-CE, Brazil
| | - Alexandre Holanda Sampaio
- Marine Biotecnology Laboratory - BioMar-Lab, Departament of Fishing Engineering S/N, Bloco 871, 60440-970, Fortaleza-CE, Brazil.
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Duarte PL, Andrade FRN, Sousa ARDO, Andrade AL, de Vasconcelos MA, Teixeira EH, Nagano CS, Sampaio AH, Carneiro RF. A fibrinogen-related Lectin from Echinometra lucunter represents a new FReP family in Echinodermata phylum. Fish Shellfish Immunol 2022; 131:150-159. [PMID: 36216229 DOI: 10.1016/j.fsi.2022.10.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/18/2022] [Revised: 09/30/2022] [Accepted: 10/03/2022] [Indexed: 06/16/2023]
Abstract
Fibrinogen-related proteins (FREPs) have been identified in several animals. They are involved in the body's defense, acting as mediators of phagocytosis. Ficolins and intelectins are some of the most studied Fibrinogen-related Domain (FReD)-containing lectins. In this work, we have isolated a singular FReD-containing lectin, which cannot be classified as ficolin or intelectin. ELL (Echinometra lucunter lectin) was isolated from coelomic plasma by affinity chromatography on xanthan gum. Primary structure was determined by tandem mass spectrometry. Moreover, antimicrobial activity of ELL was evaluated against planktonic cells and biofilm of Escherichia coli, Staphylococcus aureus and S. epidermidis. ELL showed hemagglutinating activity in Ca2+ presence, which was inhibited by glycoprotein mucin and thyroglobulin. Complete amino acid sequence consisted of 229 residues, including a FReD in the N-terminal. Searches for similarity found that ELL was very close to putative proteins from Strongylocentrotus purpuratus. ELL showed moderate similarity with uncharacterized sea stars proteins and protochordate intelectins. ELL was able to inhibit the planktonic growth of the Gram-positive bacteria and significantly reduce the biofilm formation of all bacteria tested. In conclusion, we identified a new type of FReP-containing lectin with some structural and functional conservation towards intelectins.
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Affiliation(s)
- Philippe Lima Duarte
- Laboratório de Biotecnologia Marinha - BioMar-Lab, Departamento de Engenharia de Pesca, Universidade Federal do Ceará, Campus do Pici s/n, bloco 871, 60440-970, Fortaleza, Ceará, Brazil
| | - Francisco Regivânio Nascimento Andrade
- Laboratório de Biotecnologia Marinha - BioMar-Lab, Departamento de Engenharia de Pesca, Universidade Federal do Ceará, Campus do Pici s/n, bloco 871, 60440-970, Fortaleza, Ceará, Brazil
| | - Andressa Rocha de Oliveira Sousa
- Laboratório de Biotecnologia Marinha - BioMar-Lab, Departamento de Engenharia de Pesca, Universidade Federal do Ceará, Campus do Pici s/n, bloco 871, 60440-970, Fortaleza, Ceará, Brazil
| | - Alexandre Lopes Andrade
- Laboratório Integrado de Biomoléculas - LIBS, Departamento de Patologia e Medicina Legal, Universidade Federal do Ceará, Monsenhor Furtado, s/n, 60430-160, Fortaleza, Ceará, Brazil
| | - Mayron Alves de Vasconcelos
- Laboratório Integrado de Biomoléculas - LIBS, Departamento de Patologia e Medicina Legal, Universidade Federal do Ceará, Monsenhor Furtado, s/n, 60430-160, Fortaleza, Ceará, Brazil; Laboratorio de Quimica de Proteínas e Produtos Naturais - LABQUIMP, Universidade do Estado de Minas Gerais, Unidade Divinópolis, 35501-170, Divinópolis, Minas Gerais, Brazil
| | - Edson Holanda Teixeira
- Laboratório Integrado de Biomoléculas - LIBS, Departamento de Patologia e Medicina Legal, Universidade Federal do Ceará, Monsenhor Furtado, s/n, 60430-160, Fortaleza, Ceará, Brazil
| | - Celso Shiniti Nagano
- Laboratório de Biotecnologia Marinha - BioMar-Lab, Departamento de Engenharia de Pesca, Universidade Federal do Ceará, Campus do Pici s/n, bloco 871, 60440-970, Fortaleza, Ceará, Brazil
| | - Alexandre Holanda Sampaio
- Laboratório de Biotecnologia Marinha - BioMar-Lab, Departamento de Engenharia de Pesca, Universidade Federal do Ceará, Campus do Pici s/n, bloco 871, 60440-970, Fortaleza, Ceará, Brazil
| | - Rômulo Farias Carneiro
- Laboratório de Biotecnologia Marinha - BioMar-Lab, Departamento de Engenharia de Pesca, Universidade Federal do Ceará, Campus do Pici s/n, bloco 871, 60440-970, Fortaleza, Ceará, Brazil.
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Alves AWDS, Sousa BL, Moura LFWG, Rebouças EDL, Coutinho MR, Silva AW, Chaves RP, Carneiro RF, Bezerra EHS, Guedes MIF, Florean EOPT, Nagano CS, Sampaio AH, Rocha BAM. Codium isthmocladum lectin 1 (CiL-1): Interaction with N-glycans explains antinociceptive and anti-inflammatory activities in adult zebrafish (Danio rerio). Int J Biol Macromol 2022; 208:1082-1089. [PMID: 35378162 DOI: 10.1016/j.ijbiomac.2022.03.209] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2021] [Revised: 03/20/2022] [Accepted: 03/30/2022] [Indexed: 12/30/2022]
Abstract
Inflammation and oxidative stress are processes associated with different human diseases. They are treated using drugs that have several side effects. Seaweed are sources of potentially relevant natural compounds for use as treatment of these disorders. Lectins are able to reversibly interact with complex carbohydrates and modulate cell membrane glycosylated receptors through this interaction. This study aimed to determine the antinociceptive and anti-inflammatory potential of CiL-1 in adult zebrafish by modulation of TRPA1 through lectin-glycan binding. Possible neuromodulation by TRPA1 channel was also evaluated by camphor pretreatment. CiL-1 was efficacious at all tested doses, revealing anti-nociceptive and anti-inflammatory effects in adult zebrafish. This galactose-binding lectin was also able to reduce the content of ROS in brain and liver. In silico analyses showed CiL-1 interactions with both ligands tested. LacNac2 presents the most favorable binding energy with the protein. The interaction occurs at 4 subsites as an extended conformation at the site. LacNac2-Sia had a less favorable curved-shape interaction energy. Based on the predictions made for the oligosaccharides, a tetra-antenate putative glycan was schematically constructed, illustrating an interaction between TRPA1 N-glycan and CiL-1. This binding seems to be related to CiL-1 anti-inflammatory activity as result of receptor modulation.
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Affiliation(s)
- Antônio Willame da Silva Alves
- Laboratório de Biocristalografia - LABIC, Departamento de Bioquímica e Biologia Molecular, Universidade Federal do Ceará, Campus do Pici s/n, bloco 907, Av. Mister Hull, Fortaleza, Ceará 60440-970, Brazil
| | - Bruno Lopes Sousa
- Faculdade de Filosofia Dom Aureliano Matos, Universidade Estadual do Ceará, Av. Dom Aureliano Matos, 2060, Limoeiro do Norte, Ceará 62930-000, Brazil
| | - Luiz Francisco Wemmenson Gonçalves Moura
- Laboratório de Biotecnologia e Biologia Molecular - LBBM, Centro de Ciências da Saúde, Universidade Estadual do Ceará, Campus do Itaperi, Fortaleza, Ceará, Brazil
| | - Emanuela de Lima Rebouças
- Laboratório de Biotecnologia e Biologia Molecular - LBBM, Centro de Ciências da Saúde, Universidade Estadual do Ceará, Campus do Itaperi, Fortaleza, Ceará, Brazil
| | - Marnielle Rodrigues Coutinho
- Laboratório de Biotecnologia e Biologia Molecular - LBBM, Centro de Ciências da Saúde, Universidade Estadual do Ceará, Campus do Itaperi, Fortaleza, Ceará, Brazil
| | - Antônio Wlisses Silva
- Laboratório de Biotecnologia e Biologia Molecular - LBBM, Centro de Ciências da Saúde, Universidade Estadual do Ceará, Campus do Itaperi, Fortaleza, Ceará, Brazil
| | - Renata Pinheiro Chaves
- Laboratório de Biotecnologia Marinha - BioMar-Lab, Departamento de Engenharia de Pesca, Universidade Federal do Ceará, Campus do Pici, Fortaleza, Ceará, Brazil
| | - Rômulo Farias Carneiro
- Laboratório de Biotecnologia Marinha - BioMar-Lab, Departamento de Engenharia de Pesca, Universidade Federal do Ceará, Campus do Pici, Fortaleza, Ceará, Brazil
| | - Eduardo Henrique Salviano Bezerra
- Laboratório de Biocristalografia - LABIC, Departamento de Bioquímica e Biologia Molecular, Universidade Federal do Ceará, Campus do Pici s/n, bloco 907, Av. Mister Hull, Fortaleza, Ceará 60440-970, Brazil; Laboratório Nacional de Biociências - LNBio, Centro Nacional de Pesquisa em Energia e Materiais, Rua Giuseppe Máximo Scolfaro, Cidade Universitária, Campinas, São Paulo, Brazil
| | - Maria Izabel Florindo Guedes
- Laboratório de Biotecnologia e Biologia Molecular - LBBM, Centro de Ciências da Saúde, Universidade Estadual do Ceará, Campus do Itaperi, Fortaleza, Ceará, Brazil
| | | | - Celso Shiniti Nagano
- Laboratório de Biotecnologia Marinha - BioMar-Lab, Departamento de Engenharia de Pesca, Universidade Federal do Ceará, Campus do Pici, Fortaleza, Ceará, Brazil
| | - Alexandre Holanda Sampaio
- Laboratório de Biotecnologia Marinha - BioMar-Lab, Departamento de Engenharia de Pesca, Universidade Federal do Ceará, Campus do Pici, Fortaleza, Ceará, Brazil
| | - Bruno Anderson Matias Rocha
- Laboratório de Biocristalografia - LABIC, Departamento de Bioquímica e Biologia Molecular, Universidade Federal do Ceará, Campus do Pici s/n, bloco 907, Av. Mister Hull, Fortaleza, Ceará 60440-970, Brazil.
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5
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Sousa ARDO, Andrade FRN, Chaves RP, Sousa BLD, Lima DBD, Souza RODS, da Silva CGL, Teixeira CS, Sampaio AH, Nagano CS, Carneiro RF. Structural characterization of a galectin isolated from the marine sponge Chondrilla caribensis with leishmanicidal potential. Biochim Biophys Acta Gen Subj 2021; 1865:129992. [PMID: 34508835 DOI: 10.1016/j.bbagen.2021.129992] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2021] [Revised: 08/11/2021] [Accepted: 08/19/2021] [Indexed: 01/08/2023]
Abstract
BACKGROUND Solving primary structure of lectins leads to an understanding of the physiological roles within an organism and its biotechnological potential. Only eight sponge lectins have had their primary structure fully determined. METHODS The primary structure of CCL, Chondrilla caribensis lectin, was determined by tandem mass spectrometry. The three-dimensional structure was predicted and the protein-carbohydrate interaction analysed by molecular docking. Furthermore, the anti-leishmanial activity was observed by assays with Leishmania infantum. RESULTS The amino acid sequence consists of 142 amino acids with a calculated molecular mass of 15,443 Da. The lectin has a galectin-like domain architecture. As observed in other sponge galectins, the signature sequence of a highly conserved domain was also identified in CCL with some modifications. CCL exhibits a typical galectin structure consisting of a β-sandwich. Molecular docking showed that the amino acids interacting with CCL ligands at the monosaccharide binding site are mostly the same as those conserved in this family of lectins. Through its interaction with L. infantum glycans, CCL was able to inhibit the development of this parasite. CCL also induced apoptosis after eliciting ROS production and altering the membrane integrity of Leishmania infantum promastigote. CONCLUSIONS CCL joins the restricted group of sponge lectins with determined primary structure and very high biotechnological potential owing to its promising results against pathogens that cause Leishmaniasis. GENERAL SIGNIFICANCE As the determination of primary structure is important for biological studies, now CCL can become a sponge galectin with an exciting future in the field of human health.
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Affiliation(s)
- Andressa Rocha de Oliveira Sousa
- Laboratório de Biotecnologia Marinha - BioMar-Lab, Departamento de Engenharia de Pesca, Universidade Federal do Ceará, Campus do Pici s/n, bloco 871, 60440-970 Fortaleza, Ceará, Brazil
| | - Francisco Regivânio Nascimento Andrade
- Laboratório de Biotecnologia Marinha - BioMar-Lab, Departamento de Engenharia de Pesca, Universidade Federal do Ceará, Campus do Pici s/n, bloco 871, 60440-970 Fortaleza, Ceará, Brazil
| | - Renata Pinheiro Chaves
- Laboratório de Biotecnologia Marinha - BioMar-Lab, Departamento de Engenharia de Pesca, Universidade Federal do Ceará, Campus do Pici s/n, bloco 871, 60440-970 Fortaleza, Ceará, Brazil
| | - Bruno Lopes de Sousa
- Faculdade de Filosofia Dom Aureliano Matos, Universidade Estadual do Ceará, Brazil
| | | | | | | | - Claudener Souza Teixeira
- Centro de Ciências Agrárias e da Biodiversidade, Universidade Federal do Cariri, Crato, CE, Brazil
| | - Alexandre Holanda Sampaio
- Laboratório de Biotecnologia Marinha - BioMar-Lab, Departamento de Engenharia de Pesca, Universidade Federal do Ceará, Campus do Pici s/n, bloco 871, 60440-970 Fortaleza, Ceará, Brazil
| | - Celso Shiniti Nagano
- Laboratório de Biotecnologia Marinha - BioMar-Lab, Departamento de Engenharia de Pesca, Universidade Federal do Ceará, Campus do Pici s/n, bloco 871, 60440-970 Fortaleza, Ceará, Brazil
| | - Rômulo Farias Carneiro
- Laboratório de Biotecnologia Marinha - BioMar-Lab, Departamento de Engenharia de Pesca, Universidade Federal do Ceará, Campus do Pici s/n, bloco 871, 60440-970 Fortaleza, Ceará, Brazil.
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6
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do Vale JPC, Vasconcelos MA, Arruda FVS, Firmino NCS, Pereira AL, Andrade AL, Saker-Sampaio S, Sampaio AH, Marinho ES, Teixeira AMR, Marinho MM, Rodrigues THS, Teixeira EH, Dos Santos HS. Evaluation of Antimicrobial and Antioxidant Potential of Essential Oil from Croton piauhiensis Müll. Arg. Curr Microbiol 2021; 78:1926-1938. [PMID: 33782740 DOI: 10.1007/s00284-021-02449-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2020] [Accepted: 03/10/2021] [Indexed: 01/19/2023]
Abstract
A large number of infections are caused by Gram-positive and Gram-negative multi-resistant bacteria worldwide, adding up to a figure of around 700,000 deaths per year. The indiscriminate uses of antibiotics, as well as their misuse, resulted in the selection of bacteria resistant to known antibiotics, for which it has little or no treatment. In this way, the strategies to combat the resistance of microorganisms are extremely important and, essential oils of Croton species have been extensively studied for this purpose. The aim of this study was to carry the evaluation of antibacterial, antibiofilm, antioxidant activities, and spectroscopic investigation of essential oil from Croton piauhiensis (EOCp). The EOCp exhibited antimicrobial activity against Gram-positive and Gram-negative bacteria with required MICs ranging from 0.15 to 5% (v/v). In addition, the MBC of the EOCp for Staphylococcus aureus ATCC 25923 and ATCC 700698, were 0.15 and 1.25%, respectively. Moreover, the EOCp significantly reduced significantly the biofilm production and the number of viable cells from the biofilm of all bacterial strains tested. The antioxidant potential of the EOCp showed EC50 values ranging from 171.21 to 4623.83 μg/mL. The EOCp caused hemolysis (>45%) at the higher concentrations tested (1.25 to 5%), and minor hemolysis (17.6%) at a concentration of 0.07%. In addition, docking studies indicated D-limonene as a phytochemical with potential for antimicrobial activity. This study indicated that the EOCp may be a potential agent against infections caused by bacterial biofilms, and act as a protective agent against ROS and oxidative stress.
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Affiliation(s)
- Jean Parcelli Costa do Vale
- Laboratório Integrado de Biomoléculas (LIBS), Departamento de Patologia e Medicina Legal, Universidade Federal do Ceará, Fortaleza, Ceará, Brazil.,Centro de Ciências Exatas e Tecnologia, Universidade Estadual Vale do Acaraú, Sobral, Ceará, Brazil.,Programa de Pós-Graduação Ciências NaturaisCentro de Ciências E Tecnologia, Universidade Estadual Do Ceará, Fortaleza, Ceará, Brazil
| | - Mayron Alves Vasconcelos
- Laboratório Integrado de Biomoléculas (LIBS), Departamento de Patologia e Medicina Legal, Universidade Federal do Ceará, Fortaleza, Ceará, Brazil.,Universidade do Estado de Minas Gerais, Unidade de Divinópolis, Divinópolis, Minas Gerais, Brazil.,Departamento de Ciências Biológicas, Faculdade de Ciências Exatas e Naturais, Universidade do Estado do Rio Grande do Norte, Rio Grande do Norte, Mossoró, Brasil
| | - Francisco Vassiliepe Sousa Arruda
- Laboratório Integrado de Biomoléculas (LIBS), Departamento de Patologia e Medicina Legal, Universidade Federal do Ceará, Fortaleza, Ceará, Brazil.,Centro Universitário Inta - Uninta, Sobral, Ceará, Brazil
| | - Nairley Cardoso Sá Firmino
- Laboratório Integrado de Biomoléculas (LIBS), Departamento de Patologia e Medicina Legal, Universidade Federal do Ceará, Fortaleza, Ceará, Brazil.,Centro Universitário Inta - Uninta, Sobral, Ceará, Brazil
| | - Anna Luísa Pereira
- Laboratório Integrado de Biomoléculas (LIBS), Departamento de Patologia e Medicina Legal, Universidade Federal do Ceará, Fortaleza, Ceará, Brazil
| | - Alexandre Lopes Andrade
- Laboratório Integrado de Biomoléculas (LIBS), Departamento de Patologia e Medicina Legal, Universidade Federal do Ceará, Fortaleza, Ceará, Brazil
| | - Silvana Saker-Sampaio
- Laboratório de Produtos Naturais Marinhos, Departamento de Engenharia de Pesca, Marine Natural, Universidade Federal do Ceará, Fortaleza, Ceará, Brazil
| | - Alexandre Holanda Sampaio
- Laboratório de Biotecnologia Marinha, Departamento de Engenharia de Pesca, Universidade Federal do Ceará, Fortaleza, Ceará, Brazil
| | - Emmanuel Silva Marinho
- Faculdade de Filosofia Dom Aureliano Matos, Universidade Estadual do Ceará, Limoeiro do Norte, Ceará, Brazil
| | | | - Márcia Machado Marinho
- Faculdade de Educação, Ciência E Letras de Iguatu, Universidade Estadual do Ceará, Iguatu, Ceará, Brazil
| | | | - Edson Holanda Teixeira
- Laboratório Integrado de Biomoléculas (LIBS), Departamento de Patologia e Medicina Legal, Universidade Federal do Ceará, Fortaleza, Ceará, Brazil
| | - Hélcio Silva Dos Santos
- Laboratório Integrado de Biomoléculas (LIBS), Departamento de Patologia e Medicina Legal, Universidade Federal do Ceará, Fortaleza, Ceará, Brazil. .,Centro de Ciências Exatas e Tecnologia, Universidade Estadual Vale do Acaraú, Sobral, Ceará, Brazil. .,Programa de Pós-Graduação Ciências NaturaisCentro de Ciências E Tecnologia, Universidade Estadual Do Ceará, Fortaleza, Ceará, Brazil.
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7
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Alves MFDA, Barreto FKDA, Vasconcelos MAD, Nascimento Neto LGD, Carneiro RF, Silva LTD, Nagano CS, Sampaio AH, Teixeira EH. Antihyperglycemic and antioxidant activities of a lectin from the marine red algae, Bryothamnion seaforthii, in rats with streptozotocin-induced diabetes. Int J Biol Macromol 2020; 158:773-780. [PMID: 32360963 DOI: 10.1016/j.ijbiomac.2020.04.238] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2020] [Revised: 04/15/2020] [Accepted: 04/27/2020] [Indexed: 01/19/2023]
Abstract
The aim of the study was to assess the antihyperglycemic, antilipidemic, and antioxidant effects of a lectin isolated from Bryothamnion seaforthii (BSL), on rats with streptozotocin (STZ)-induced diabetes. The disease model was induced by low-dose injections of STZ. Diabetic rats were treated with NaCl 150 mM, metformin, and BSL at different concentrations. Blood collection was carried out at 0, 30, 60, 90, and 120 days after hyperglycemia confirmation via the assessment of seric glucose, total cholesterol, and triglycerides, assessment of the enzymatic levels of glutathione peroxidase (GPx), catalase (CAT), and superoxide dismutase (SOD), and the determination of insulin resistance by a homeostasis model of assessment-insulin resistance (HOMA-IR) as well as a homeostasis model of assessment of β-cells resistance (HOMA-β). The BSL-treated animals at all three concentrations showed a significant reduction in levels of glucose, cholesterol, total cholesterol, and triglycerides. Moreover, BSL increased the enzymatic activity of GPx and SOD. Index assessments of HOMA-IR and HOMA-β confirmed that BSL treatment significantly decreased insulin resistance and β-cell hypersecretion, respectively. In conclusion, BSL treatment might exert hypoglycemic and hypolipidemic effects, diminish insulin resistance, and ameliorate pancreatic β-cell function along with enzymatic activities toward oxidative stress caused by diabetes mellitus type 2 (T2DM).
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Affiliation(s)
- Mayara Freire de Alencar Alves
- Laboratório Integrado de Biomoléculas - LIBS, Departamento de Patologia e Medicina Legal, Universidade Federal do Ceará, Monsenhor Furtado, s/n, Fortaleza, Ceará 60430-160, Brazil
| | - Francisca Kalline de Almeida Barreto
- Laboratório Integrado de Biomoléculas - LIBS, Departamento de Patologia e Medicina Legal, Universidade Federal do Ceará, Monsenhor Furtado, s/n, Fortaleza, Ceará 60430-160, Brazil
| | - Mayron Alves de Vasconcelos
- Laboratório Integrado de Biomoléculas - LIBS, Departamento de Patologia e Medicina Legal, Universidade Federal do Ceará, Monsenhor Furtado, s/n, Fortaleza, Ceará 60430-160, Brazil; Faculdade de Ciências Exatas e Naturais, Universidade do Estado do Rio Grande do Norte, 59625-620 Mossoró, Rio Grande do Norte, Brazil; Universidade do Estado de Minas Gerais, Unidade de Divinópolis, Divinópolis, Minas Gerais 35501-170, Brazil
| | - Luiz Gonzaga do Nascimento Neto
- Laboratório Integrado de Biomoléculas - LIBS, Departamento de Patologia e Medicina Legal, Universidade Federal do Ceará, Monsenhor Furtado, s/n, Fortaleza, Ceará 60430-160, Brazil; Departamento do Núcleo Comum, Instituto Federal de Educação, Ciência e Tecnologia do Ceará, Campus Limoeiro do Norte, 62930-000 Limoeiro do Norte, Ceará, Brazil
| | - Rômulo Farias Carneiro
- Laboratório de Biotecnologia Marinha - BioMar-Lab, Departamento de Engenharia de Pesca, Universidade Federal do Ceará, Campus do Pici s/n, bloco 871, Fortaleza, Ceará 60440-970, Brazil
| | - Livia Torquato da Silva
- Laboratório de Biotecnologia Marinha - BioMar-Lab, Departamento de Engenharia de Pesca, Universidade Federal do Ceará, Campus do Pici s/n, bloco 871, Fortaleza, Ceará 60440-970, Brazil
| | - Celso Shiniti Nagano
- Laboratório de Biotecnologia Marinha - BioMar-Lab, Departamento de Engenharia de Pesca, Universidade Federal do Ceará, Campus do Pici s/n, bloco 871, Fortaleza, Ceará 60440-970, Brazil
| | - Alexandre Holanda Sampaio
- Laboratório de Biotecnologia Marinha - BioMar-Lab, Departamento de Engenharia de Pesca, Universidade Federal do Ceará, Campus do Pici s/n, bloco 871, Fortaleza, Ceará 60440-970, Brazil
| | - Edson Holanda Teixeira
- Laboratório Integrado de Biomoléculas - LIBS, Departamento de Patologia e Medicina Legal, Universidade Federal do Ceará, Monsenhor Furtado, s/n, Fortaleza, Ceará 60430-160, Brazil.
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8
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Gondim ACS, Roberta da Silva S, Mathys L, Noppen S, Liekens S, Holanda Sampaio A, Nagano CS, Renata Costa Rocha C, Nascimento KS, Cavada BS, Sadler PJ, Balzarini J. Potent antiviral activity of carbohydrate-specific algal and leguminous lectins from the Brazilian biodiversity. Medchemcomm 2019; 10:390-398. [PMID: 30996857 PMCID: PMC6430086 DOI: 10.1039/c8md00508g] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/08/2018] [Accepted: 12/11/2018] [Indexed: 01/27/2023]
Abstract
Brazil has one of the largest biodiversities in the world. The search for new natural products extracted from the Brazilian flora may lead to the discovery of novel drugs with potential to treat infectious and other diseases. Here, we have investigated 9 lectins extracted and purified from the Northeastern Brazilian flora, from both leguminous species: Canavalia brasiliensis (ConBr), C. maritima (ConM), Dioclea lasiocarpa (DLasiL) and D. sclerocarpa (DSclerL), and algae Amansia multifida (AML), Bryothamniom seaforthii (BSL), Hypnea musciformis (HML), Meristiella echinocarpa (MEL) and Solieria filiformis (SfL). They were exposed to a panel of 18 different viruses, including HIV and influenza viruses. Several lectins showed highly potent antiviral activity, often within the low nanomolar range. DSclerL and DLasiL exhibited EC50 values (effective concentration of lectin required to inhibit virus-induced cytopathicity by 50%) of 9 nM to 46 nM for HIV-1 and respiratory syncytial virus (RSV), respectively, DLasiL also inhibited feline corona virus at an EC50 of 5 nM, and DSclerL, ConBr and ConM showed remarkably low EC50 values ranging from 0.4 to 6 nM against influenza A virus strain H3N2 and influenza B virus. For HIV, evidence pointed to the blockage of entry of the virus into its target cells as the underlying mechanism of antiviral action of these lectins. Overall, the most promising lectins based on their EC50 values were DLasiL, DSclerL, ConBr, ConM, SfL and HML. These novel findings indicate that lectins from the Brazilian flora may provide novel antiviral compounds with therapeutic potential.
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Affiliation(s)
- Ana C S Gondim
- Department of Biochemistry and Molecular Biology , Federal University of Ceará , 60455-760 , Fortaleza , Ceará , Brazil .
- Department of Chemistry , University of Warwick , Coventry CV4 7AL , UK .
- Department of Organic and Inorganic Chemistry , Federal University of Ceará , 60455-900 , Fortaleza , Ceará , Brazil
| | - Suzete Roberta da Silva
- Department of Fishing and Engineering , Federal University of Ceará , 60455-900 , Fortaleza , Ceará , Brazil
- Para West Federal University , 68220-000 , Monte Alegre , Brazil
| | - Leen Mathys
- Rega Institute for Medical Research , Department of Microbiology and Immunology , KU Leuven , 3000 Leuven , Belgium .
| | - Sam Noppen
- Rega Institute for Medical Research , Department of Microbiology and Immunology , KU Leuven , 3000 Leuven , Belgium .
| | - Sandra Liekens
- Rega Institute for Medical Research , Department of Microbiology and Immunology , KU Leuven , 3000 Leuven , Belgium .
| | - Alexandre Holanda Sampaio
- Department of Fishing and Engineering , Federal University of Ceará , 60455-900 , Fortaleza , Ceará , Brazil
| | - Celso S Nagano
- Department of Fishing and Engineering , Federal University of Ceará , 60455-900 , Fortaleza , Ceará , Brazil
| | | | - Kyria S Nascimento
- Department of Biochemistry and Molecular Biology , Federal University of Ceará , 60455-760 , Fortaleza , Ceará , Brazil .
| | - Benildo S Cavada
- Department of Biochemistry and Molecular Biology , Federal University of Ceará , 60455-760 , Fortaleza , Ceará , Brazil .
| | - Peter J Sadler
- Department of Chemistry , University of Warwick , Coventry CV4 7AL , UK .
| | - Jan Balzarini
- Rega Institute for Medical Research , Department of Microbiology and Immunology , KU Leuven , 3000 Leuven , Belgium .
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9
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Marques DN, Almeida ASD, Sousa ARDO, Pereira R, Andrade AL, Chaves RP, Carneiro RF, Vasconcelos MAD, Nascimento-Neto LGD, Pinheiro U, Videira PA, Teixeira EH, Nagano CS, Sampaio AH. Antibacterial activity of a new lectin isolated from the marine sponge Chondrilla caribensis. Int J Biol Macromol 2017; 109:1292-1301. [PMID: 29175164 DOI: 10.1016/j.ijbiomac.2017.11.140] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2017] [Revised: 11/20/2017] [Accepted: 11/21/2017] [Indexed: 12/11/2022]
Abstract
A new lectin from the marine sponge Chondrilla caribensis (CCL) was isolated by affinity chromatography in Sepharose 6B media. CCL is a homotetrameric protein formed by subunits of 15,445 ±2Da. The lectin showed affinity for disaccharides containing galactose and mucin. Mass spectrometric analysis revealed about 50% of amino acid sequence of CCL, which showed similarity with a lectin isolated from Aplysina lactuca. Secondary structure consisted of 10% α-helix, 74% β-sheet/β-turn and 16% coil, and this profile was unaltered in a broad range of pH and temperatures. CCL agglutinated Staphylococcus aureus, S epidermidis and Escherichia coli, and it was able to reduce biofilm biomass, but showed no inhibition of planktonic growth of these bacteria. CCL activity was inhibited by α-lactose, indicating that Carbohydrate Recognition Domain (CRD) of the lectin was involved in antibiofilm activity.
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Affiliation(s)
- Dayara Normando Marques
- Laboratório de Biotecnologia Marinha - BioMar-Lab, Departamento de Engenharia de Pesca, Universidade Federal do Ceará, Campus do Pici s/n, bloco 871, 60440-970, Fortaleza, Ceará, Brazil
| | - Alexandra Sampaio de Almeida
- Laboratório de Biotecnologia Marinha - BioMar-Lab, Departamento de Engenharia de Pesca, Universidade Federal do Ceará, Campus do Pici s/n, bloco 871, 60440-970, Fortaleza, Ceará, Brazil
| | - Andressa Rocha de Oliveira Sousa
- Laboratório de Biotecnologia Marinha - BioMar-Lab, Departamento de Engenharia de Pesca, Universidade Federal do Ceará, Campus do Pici s/n, bloco 871, 60440-970, Fortaleza, Ceará, Brazil
| | - Rafael Pereira
- Laboratório Integrado de Biomoléculas - LIBS, Departamento de Patologia e Medicina Legal, Universidade Federal do Ceará, Monsenhor Furtado, s/n, 60430-160, Fortaleza, Ceará, Brazil
| | - Alexandre Lopes Andrade
- Laboratório Integrado de Biomoléculas - LIBS, Departamento de Patologia e Medicina Legal, Universidade Federal do Ceará, Monsenhor Furtado, s/n, 60430-160, Fortaleza, Ceará, Brazil
| | - Renata Pinheiro Chaves
- Laboratório de Biotecnologia Marinha - BioMar-Lab, Departamento de Engenharia de Pesca, Universidade Federal do Ceará, Campus do Pici s/n, bloco 871, 60440-970, Fortaleza, Ceará, Brazil
| | - Rômulo Farias Carneiro
- Laboratório de Biotecnologia Marinha - BioMar-Lab, Departamento de Engenharia de Pesca, Universidade Federal do Ceará, Campus do Pici s/n, bloco 871, 60440-970, Fortaleza, Ceará, Brazil
| | - Mayron Alves de Vasconcelos
- Laboratório Integrado de Biomoléculas - LIBS, Departamento de Patologia e Medicina Legal, Universidade Federal do Ceará, Monsenhor Furtado, s/n, 60430-160, Fortaleza, Ceará, Brazil; Departamento de Ciências Biológicas, Faculdade de Ciências Exatas e Naturais, Universidade do Estado do Rio Grande do Norte, 59625-620, Mossoró, Rio Grande do Norte, Brazil
| | - Luiz Gonzaga do Nascimento-Neto
- Laboratório de Biotecnologia Marinha - BioMar-Lab, Departamento de Engenharia de Pesca, Universidade Federal do Ceará, Campus do Pici s/n, bloco 871, 60440-970, Fortaleza, Ceará, Brazil; Laboratório Integrado de Biomoléculas - LIBS, Departamento de Patologia e Medicina Legal, Universidade Federal do Ceará, Monsenhor Furtado, s/n, 60430-160, Fortaleza, Ceará, Brazil
| | - Ulisses Pinheiro
- Departamento de Zoologia, UFPE - Universidade Federal de Pernambuco, Av. Prof Moraes Rego, 1235, 50670-901, Cidade Universitária, Recife, Pernambuco, Brazil
| | - Paula Alexandra Videira
- UCIBIO, Departamento de Ciências da Vida, Faculdade de Ciências e Tecnologia, Universidade NOVA de Lisboa, 2829-516, Caparica, Portugal
| | - Edson Holanda Teixeira
- Laboratório Integrado de Biomoléculas - LIBS, Departamento de Patologia e Medicina Legal, Universidade Federal do Ceará, Monsenhor Furtado, s/n, 60430-160, Fortaleza, Ceará, Brazil
| | - Celso Shiniti Nagano
- Laboratório de Biotecnologia Marinha - BioMar-Lab, Departamento de Engenharia de Pesca, Universidade Federal do Ceará, Campus do Pici s/n, bloco 871, 60440-970, Fortaleza, Ceará, Brazil
| | - Alexandre Holanda Sampaio
- Laboratório de Biotecnologia Marinha - BioMar-Lab, Departamento de Engenharia de Pesca, Universidade Federal do Ceará, Campus do Pici s/n, bloco 871, 60440-970, Fortaleza, Ceará, Brazil.
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10
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Chaves RP, Silva SRD, Nascimento Neto LG, Carneiro RF, Silva ALCD, Sampaio AH, Sousa BLD, Cabral MG, Videira PA, Teixeira EH, Nagano CS. Structural characterization of two isolectins from the marine red alga Solieria filiformis (Kützing) P.W. Gabrielson and their anticancer effect on MCF-7 breast cancer cells. Int J Biol Macromol 2017; 107:1320-1329. [PMID: 28970169 DOI: 10.1016/j.ijbiomac.2017.09.116] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2017] [Accepted: 09/28/2017] [Indexed: 12/19/2022]
Abstract
As described in the literature, Solieria filiformis lectin (SfL) from the marine red alga S. filiformis was found to have antinociceptive and anti-inflammatory effects. In this study, we characterized two SfL variants, SfL-1 and SfL-2, with molecular mass of 27,552Da and 27,985Da, respectively. The primary structures of SfL-1 and SfL-2 consist of four tandem-repeat protein domains with 67 amino acids each. SfL-1 and -2 showed high similarity to OAAH-family lectins. 3D structure prediction revealed that SfL-1 and -2 are composed of two β-barrel-like domains formed by five antiparallel β-strands, which are connected by a short peptide linker. Furthermore, the mixture of isoforms (SfLs) showed anticancer effect against MCF-7 cells. Specifically, SfLs inhibited 50% of viability in MCF-7 cells after treatment at 125μg.mL-1, while the inhibition of Human Dermal Fibroblasts (HDF) was 34% with the same treatment. Finally, 24h after treatment, 25% of MCF-7 cells were in early apoptosis and 35% in late apoptosis. Evaluation of pro- and anti-apoptotic gene expression of MCF-7 cells revealed that SfLs induced caspase-dependent apoptosis within 24h.
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Affiliation(s)
- Renata Pinheiro Chaves
- Laboratório de Biotecnologia Marinha - BioMar-Lab, Departamento de Engenharia de Pesca, Universidade Federal do Ceará, Campus do Pici s/n, bloco 871, 60440-900 Fortaleza, Ceará, Brazil
| | - Suzete Roberta da Silva
- Laboratório de Biotecnologia Marinha - BioMar-Lab, Departamento de Engenharia de Pesca, Universidade Federal do Ceará, Campus do Pici s/n, bloco 871, 60440-900 Fortaleza, Ceará, Brazil
| | - Luiz Gonzaga Nascimento Neto
- Laboratório de Biotecnologia Marinha - BioMar-Lab, Departamento de Engenharia de Pesca, Universidade Federal do Ceará, Campus do Pici s/n, bloco 871, 60440-900 Fortaleza, Ceará, Brazil; Laboratório Integrado de Biomoléculas - LIBS, Departamento de Patologia e Medicina Legal, Universidade Federal do Ceará, Monsenhor Furtado, s/n, 60430-160 Fortaleza, Ceará, Brazil
| | - Romulo Farias Carneiro
- Laboratório de Biotecnologia Marinha - BioMar-Lab, Departamento de Engenharia de Pesca, Universidade Federal do Ceará, Campus do Pici s/n, bloco 871, 60440-900 Fortaleza, Ceará, Brazil
| | - André Luis Coelho da Silva
- Laboratório de Biotecnologia Molecular - LabBMol, Departamento de Bioquímica e Biologia Molecular, Universidade Federal do Ceará, Campus do Pici, bloco 907, 60440-900, Fortaleza, Ceará, Brazil
| | - Alexandre Holanda Sampaio
- Laboratório de Biotecnologia Marinha - BioMar-Lab, Departamento de Engenharia de Pesca, Universidade Federal do Ceará, Campus do Pici s/n, bloco 871, 60440-900 Fortaleza, Ceará, Brazil
| | - Bruno Lopes de Sousa
- Faculdade de Filosofia Dom Aureliano Matos, Universidade Estadual do Ceará, Av. Dom Aureliano Matos, 2060, Limoeiro do Norte, CE, 62930-000, Brazil
| | | | - Paula Alexandra Videira
- UCIBIO, Departamento de Ciências da Vida, Faculdade de Ciências e Tecnologia, Universidade NOVA de Lisboa, 2829-516, Caparica, Portugal
| | - Edson Holanda Teixeira
- Laboratório Integrado de Biomoléculas - LIBS, Departamento de Patologia e Medicina Legal, Universidade Federal do Ceará, Monsenhor Furtado, s/n, 60430-160 Fortaleza, Ceará, Brazil
| | - Celso Shiniti Nagano
- Laboratório de Biotecnologia Marinha - BioMar-Lab, Departamento de Engenharia de Pesca, Universidade Federal do Ceará, Campus do Pici s/n, bloco 871, 60440-900 Fortaleza, Ceará, Brazil.
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11
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Carneiro RF, Lima PHPD, Chaves RP, Pereira R, Pereira AL, de Vasconcelos MA, Pinheiro U, Teixeira EH, Nagano CS, Sampaio AH. Isolation, biochemical characterization and antibiofilm effect of a lectin from the marine sponge Aplysina lactuca. Int J Biol Macromol 2017; 99:213-222. [PMID: 28192138 DOI: 10.1016/j.ijbiomac.2017.02.020] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2017] [Revised: 02/02/2017] [Accepted: 02/03/2017] [Indexed: 11/17/2022]
Abstract
A new lectin was isolated from the marine sponge Aplysina lactuca (ALL) by combining ammonium sulfate precipitation and affinity chromatography on guar gum matrix. ALL showed affinity for the disaccharides α-lactose, β-lactose and lactulose (Ka=12.5, 31.9 and 145.5M-1, respectively), as well as the glycoprotein porcine stomach mucin. Its hemagglutinating activity was stable in neutral acid pH values and temperatures below 60°C. ALL is a dimeric protein formed by two covalently linked polypeptide chains. The average molecular mass, as determined by Electrospray Ionization Mass Spectrometry (ESI-MS), was 31,810±2Da. ESI-MS data also indicated the presence of three cysteines involved in one intrachain and one interchain disulfide bond. The partial amino acid sequence of ALL was determined by tandem mass spectrometry. Eight tryptic peptides presented similarity with lectin I isolated from Axinella polypoides. Its secondary structure is predominantly β-sheet, as indicated by circular dichroism (CD) spectroscopy. ALL agglutinated gram-positive and gram-negative bacterial cells, and it were able to significantly reduce the biomass of the bacterial biofilm tested at dose- dependent effect.
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Affiliation(s)
- Rômulo Farias Carneiro
- Laboratório de Biotecnologia Marinha - BioMar-Lab, Departamento de Engenharia de Pesca, Universidade Federal do Ceará, Campus do Pici s/n, Bloco 871, 60440-970, Fortaleza, Ceará, Brazil
| | - Paulo Henrique Pinheiro de Lima
- Laboratório de Biotecnologia Marinha - BioMar-Lab, Departamento de Engenharia de Pesca, Universidade Federal do Ceará, Campus do Pici s/n, Bloco 871, 60440-970, Fortaleza, Ceará, Brazil
| | - Renata Pinheiro Chaves
- Laboratório de Biotecnologia Marinha - BioMar-Lab, Departamento de Engenharia de Pesca, Universidade Federal do Ceará, Campus do Pici s/n, Bloco 871, 60440-970, Fortaleza, Ceará, Brazil
| | - Rafael Pereira
- Laboratório Integrado de Biomoléculas - LIBS, Departamento de Patologia e Medicina Legal, Universidade Federal do Ceará, Monsenhor Furtado, s/n, 60430-160, Fortaleza, Ceará, Brazil
| | - Anna Luísa Pereira
- Laboratório Integrado de Biomoléculas - LIBS, Departamento de Patologia e Medicina Legal, Universidade Federal do Ceará, Monsenhor Furtado, s/n, 60430-160, Fortaleza, Ceará, Brazil
| | - Mayron Alves de Vasconcelos
- Laboratório Integrado de Biomoléculas - LIBS, Departamento de Patologia e Medicina Legal, Universidade Federal do Ceará, Monsenhor Furtado, s/n, 60430-160, Fortaleza, Ceará, Brazil
| | - Ulisses Pinheiro
- Departamento de Zoologia, UFPE - Universidade Federal de Pernambuco, Av. Prof Moraes Rego, 1235, 50670-901, Cidade Universitária, Recife, Pernambuco, Brazil
| | - Edson Holanda Teixeira
- Laboratório Integrado de Biomoléculas - LIBS, Departamento de Patologia e Medicina Legal, Universidade Federal do Ceará, Monsenhor Furtado, s/n, 60430-160, Fortaleza, Ceará, Brazil
| | - Celso Shiniti Nagano
- Laboratório de Biotecnologia Marinha - BioMar-Lab, Departamento de Engenharia de Pesca, Universidade Federal do Ceará, Campus do Pici s/n, Bloco 871, 60440-970, Fortaleza, Ceará, Brazil
| | - Alexandre Holanda Sampaio
- Laboratório de Biotecnologia Marinha - BioMar-Lab, Departamento de Engenharia de Pesca, Universidade Federal do Ceará, Campus do Pici s/n, Bloco 871, 60440-970, Fortaleza, Ceará, Brazil.
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12
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Carneiro RF, Torres RCF, Chaves RP, de Vasconcelos MA, de Sousa BL, Goveia ACR, Arruda FV, Matos MNC, Matthews-Cascon H, Freire VN, Teixeira EH, Nagano CS, Sampaio AH. Purification, Biochemical Characterization, and Amino Acid Sequence of a Novel Type of Lectin from Aplysia dactylomela Eggs with Antibacterial/Antibiofilm Potential. Mar Biotechnol (NY) 2017; 19:49-64. [PMID: 28150103 DOI: 10.1007/s10126-017-9728-x] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/04/2016] [Accepted: 01/08/2017] [Indexed: 06/06/2023]
Abstract
A new lectin from Aplysia dactylomela eggs (ADEL) was isolated by affinity chromatography on HCl-activated Sepharose™ media. Hemagglutination caused by ADEL was inhibited by several galactosides, mainly galacturonic acid (Ka = 6.05 × 106 M-1). The primary structure of ADEL consists of 217 residues, including 11 half-cystines involved in five intrachain and one interchain disulfide bond, resulting in a molecular mass of 57,228 ± 2 Da, as determined by matrix-assisted laser desorption/ionization time of flight mass spectrometry. ADEL showed high similarity with lectins isolated from Aplysia eggs, but not with other known lectins, indicating that these lectins could be grouped into a new family of animal lectins. Three glycosylation sites were found in its polypeptide backbone. Data from peptide-N-glycosidase F digestion and MS suggest that all oligosaccharides attached to ADEL are high in mannose. The secondary structure of ADEL is predominantly β-sheet, and its tertiary structure is sensitive to the presence of ligands, as observed by CD. A 3D structure model of ADEL was created and shows two domains connected by a short loop. Domain A is composed of a flat three-stranded and a curved five-stranded β-sheet, while domain B presents a flat three-stranded and a curved four-stranded β-sheet. Molecular docking revealed favorable binding energies for interactions between lectin and galacturonic acid, lactose, galactosamine, and galactose. Moreover, ADEL was able to agglutinate and inhibit biofilm formation of Staphylococcus aureus, suggesting that this lectin may be a potential alternative to conventional use of antimicrobial agents in the treatment of infections caused by Staphylococcal biofilms.
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Affiliation(s)
- Rômulo Farias Carneiro
- Laboratório de Biotecnologia Marinha - BioMar-Lab, Departamento de Engenharia de Pesca, Universidade Federal do Ceará, Campus do Pici s/n, bloco 871, Av. Mister Hull, Box 6043, Fortaleza, Ceará, 60440-970, Brazil
| | - Renato Cézar Farias Torres
- Laboratório de Biotecnologia Marinha - BioMar-Lab, Departamento de Engenharia de Pesca, Universidade Federal do Ceará, Campus do Pici s/n, bloco 871, Av. Mister Hull, Box 6043, Fortaleza, Ceará, 60440-970, Brazil
| | - Renata Pinheiro Chaves
- Laboratório de Biotecnologia Marinha - BioMar-Lab, Departamento de Engenharia de Pesca, Universidade Federal do Ceará, Campus do Pici s/n, bloco 871, Av. Mister Hull, Box 6043, Fortaleza, Ceará, 60440-970, Brazil
| | - Mayron Alves de Vasconcelos
- Laboratório Integrado de Biomoléculas - LIBS, Departamento de Patologia e Medicina Legal, Universidade Federal do Ceará, Monsenhor Furtado, s/n, Fortaleza, Ceará, 60430-160, Brazil
| | - Bruno Lopes de Sousa
- Departamento de Física, Universidade Federal do Ceará, Campus do Pici s/n, bloco 871, Fortaleza, Ceará, 60440-970, Brazil
| | - André Castelo Rodrigues Goveia
- Laboratório de Biotecnologia Marinha - BioMar-Lab, Departamento de Engenharia de Pesca, Universidade Federal do Ceará, Campus do Pici s/n, bloco 871, Av. Mister Hull, Box 6043, Fortaleza, Ceará, 60440-970, Brazil
| | - Francisco Vassiliepe Arruda
- Laboratório Integrado de Biomoléculas - LIBS, Departamento de Patologia e Medicina Legal, Universidade Federal do Ceará, Monsenhor Furtado, s/n, Fortaleza, Ceará, 60430-160, Brazil
| | - Maria Nágila Carneiro Matos
- Laboratório de Biotecnologia Marinha - BioMar-Lab, Departamento de Engenharia de Pesca, Universidade Federal do Ceará, Campus do Pici s/n, bloco 871, Av. Mister Hull, Box 6043, Fortaleza, Ceará, 60440-970, Brazil
| | - Helena Matthews-Cascon
- Laboratório de Invertebrados Marinhos do Ceará - LIMCE, Departamento de Biologia, Universidade Federal do Ceará, Campus do Pici s/n, bloco 906, Fortaleza, CE, 60455-760, Brazil
| | - Valder Nogueira Freire
- Departamento de Física, Universidade Federal do Ceará, Campus do Pici s/n, bloco 871, Fortaleza, Ceará, 60440-970, Brazil
| | - Edson Holanda Teixeira
- Laboratório Integrado de Biomoléculas - LIBS, Departamento de Patologia e Medicina Legal, Universidade Federal do Ceará, Monsenhor Furtado, s/n, Fortaleza, Ceará, 60430-160, Brazil
| | - Celso Shiniti Nagano
- Laboratório de Biotecnologia Marinha - BioMar-Lab, Departamento de Engenharia de Pesca, Universidade Federal do Ceará, Campus do Pici s/n, bloco 871, Av. Mister Hull, Box 6043, Fortaleza, Ceará, 60440-970, Brazil
| | - Alexandre Holanda Sampaio
- Laboratório de Biotecnologia Marinha - BioMar-Lab, Departamento de Engenharia de Pesca, Universidade Federal do Ceará, Campus do Pici s/n, bloco 871, Av. Mister Hull, Box 6043, Fortaleza, Ceará, 60440-970, Brazil.
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de Alencar DB, de Carvalho FCT, Rebouças RH, Dos Santos DR, Dos Santos Pires-Cavalcante KM, de Lima RL, Baracho BM, Bezerra RM, Viana FA, Dos Fernandes Vieira RHS, Sampaio AH, de Sousa OV, Saker-Sampaio S. Bioactive extracts of red seaweeds Pterocladiella capillacea and Osmundaria obtusiloba (Floridophyceae: Rhodophyta) with antioxidant and bacterial agglutination potential. ASIAN PAC J TROP MED 2016; 9:372-379. [PMID: 27086156 DOI: 10.1016/j.apjtm.2016.03.015] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2016] [Revised: 02/20/2016] [Accepted: 03/01/2016] [Indexed: 11/28/2022] Open
Abstract
OBJECTIVE To evaluate the antioxidant, antibacterial and bacterial cell agglutination activities of the hexane (Hex) and 70% ethanol (70% EtOH) extracts of two species of red seaweeds Pterocladiella capillacea (P. capillacea) and Osmundaria obtusiloba. METHODS In vitro antioxidant activity was determined by DPPH radical scavenging assay, ferric-reducing antioxidant power assay, ferrous ion chelating assay, β-carotene bleaching assay and total phenolic content quantification. Antimicrobial activity was tested using the method of disc diffusion on Mueller-Hinton medium. The ability of algal extracts to agglutinate bacterial cells was also tested. RESULTS The 70% EtOH extract of the two algae showed the highest values of total phenolic content compared to the Hex extract. The results of DPPH for both extracts (Hex, 70% EtOH) of Osmundaria obtusiloba (43.46% and 99.47%) were higher than those of P. capillacea (33.04% and 40.81%) at a concentration of 1000 μg/mL. As for the ferrous ion chelating, there was an opposite behavior, extracts of P. capillacea had a higher activity. The extracts showed a low ferric-reducing antioxidant power, with optical density ranging from 0.054 to 0.180. Antioxidant activities of all extracts evaluated for β-carotene bleaching were above 40%. There was no antibacterial activity against bacterial strains tested. However, the extracts of both species were able to agglutinate bacterial Gram positive cells of Staphylococcus aureus and Gram negative cells of Escherichia coli, multidrug-resistant Salmonella and Vibrio harveyi. CONCLUSIONS This is the first report of the interaction between these algal extracts, rich in natural compounds with antioxidant potential, and Gram positive and Gram negative bacterial cells.
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Affiliation(s)
- Daniel Barroso de Alencar
- Laboratório de Produtos Naturais Marinhos, Departamento de Engenharia de Pesca, Universidade Federal do Ceará, Campus do Pici, Av. Mister Hull, s/n, Caixa Postal 6043, 60455-970 Fortaleza, CE, Brazil.
| | - Fátima Cristiane Teles de Carvalho
- Laboratório de Microbiologia Ambiental e do Pescado, Instituto de Ciências do Mar, Universidade Federal do Ceará, Av. da Abolição 3207, 60165-081, Fortaleza, CE, Brazil
| | - Rosa Helena Rebouças
- Laboratório de Microbiologia Ambiental e do Pescado, Instituto de Ciências do Mar, Universidade Federal do Ceará, Av. da Abolição 3207, 60165-081, Fortaleza, CE, Brazil
| | - Daniel Rodrigues Dos Santos
- Laboratório de Microbiologia Ambiental e do Pescado, Instituto de Ciências do Mar, Universidade Federal do Ceará, Av. da Abolição 3207, 60165-081, Fortaleza, CE, Brazil
| | - Kelma Maria Dos Santos Pires-Cavalcante
- Laboratório de Produtos Naturais Marinhos, Departamento de Engenharia de Pesca, Universidade Federal do Ceará, Campus do Pici, Av. Mister Hull, s/n, Caixa Postal 6043, 60455-970 Fortaleza, CE, Brazil
| | - Rebeca Larangeira de Lima
- Laboratório de Produtos Naturais Marinhos, Departamento de Engenharia de Pesca, Universidade Federal do Ceará, Campus do Pici, Av. Mister Hull, s/n, Caixa Postal 6043, 60455-970 Fortaleza, CE, Brazil
| | - Bárbara Mendes Baracho
- Laboratório de Produtos Naturais Marinhos, Departamento de Engenharia de Pesca, Universidade Federal do Ceará, Campus do Pici, Av. Mister Hull, s/n, Caixa Postal 6043, 60455-970 Fortaleza, CE, Brazil
| | - Rayssa Mendes Bezerra
- Laboratório de Produtos Naturais Marinhos, Departamento de Engenharia de Pesca, Universidade Federal do Ceará, Campus do Pici, Av. Mister Hull, s/n, Caixa Postal 6043, 60455-970 Fortaleza, CE, Brazil
| | - Francisco Arnaldo Viana
- Laboratório de Cromatografia, Departamento de Química, Universidade do Estado do Rio Grande do Norte, Campus Universitário Central, Setor III, Rua Prof. Antônio Campos, 59633-010, Mossoró, RN, Brazil
| | - Regine Helena Silva Dos Fernandes Vieira
- Laboratório de Microbiologia Ambiental e do Pescado, Instituto de Ciências do Mar, Universidade Federal do Ceará, Av. da Abolição 3207, 60165-081, Fortaleza, CE, Brazil
| | - Alexandre Holanda Sampaio
- Laboratório de Produtos Naturais Marinhos, Departamento de Engenharia de Pesca, Universidade Federal do Ceará, Campus do Pici, Av. Mister Hull, s/n, Caixa Postal 6043, 60455-970 Fortaleza, CE, Brazil
| | - Oscarina Viana de Sousa
- Laboratório de Microbiologia Ambiental e do Pescado, Instituto de Ciências do Mar, Universidade Federal do Ceará, Av. da Abolição 3207, 60165-081, Fortaleza, CE, Brazil
| | - Silvana Saker-Sampaio
- Laboratório de Produtos Naturais Marinhos, Departamento de Engenharia de Pesca, Universidade Federal do Ceará, Campus do Pici, Av. Mister Hull, s/n, Caixa Postal 6043, 60455-970 Fortaleza, CE, Brazil
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de Melo AA, Carneiro RF, de Melo Silva W, Moura RDM, Silva GC, de Sousa OV, de Sousa Saboya JP, Nascimento KSD, Saker-Sampaio S, Nagano CS, Cavada BS, Sampaio AH. HGA-2, a novel galactoside-binding lectin from the sea cucumber Holothuria grisea binds to bacterial cells. Int J Biol Macromol 2014; 64:435-42. [DOI: 10.1016/j.ijbiomac.2013.12.035] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2013] [Revised: 12/21/2013] [Accepted: 12/23/2013] [Indexed: 11/26/2022]
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15
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Teixeira CS, Assreuy AMS, da Silva Osterne VJ, Amorim RMF, Brizeno LAC, Debray H, Nagano CS, Delatorre P, Sampaio AH, Rocha BAM, Cavada BS. Mannose-specific legume lectin from the seeds of Dolichos lablab (FRIL) stimulates inflammatory and hypernociceptive processes in mice. Process Biochem 2014. [DOI: 10.1016/j.procbio.2013.12.020] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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16
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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] [What about the content of this article? (0)] [Affiliation(s)] [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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Carneiro RF, de Melo AA, de Almeida AS, Moura RDM, Chaves RP, de Sousa BL, do Nascimento KS, Sampaio SS, Lima JPMS, Cavada BS, Nagano CS, Sampaio AH. H-3, a new lectin from the marine sponge Haliclona caerulea: Purification and mass spectrometric characterization. Int J Biochem Cell Biol 2013; 45:2864-73. [DOI: 10.1016/j.biocel.2013.10.005] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2013] [Revised: 09/19/2013] [Accepted: 10/10/2013] [Indexed: 11/30/2022]
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18
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Delatorre P, Silva-Filho JC, Rocha BAM, Santi-Gadelha T, da Nóbrega RB, Gadelha CAA, do Nascimento KS, Nagano CS, Sampaio AH, Cavada BS. Interactions between indole-3-acetic acid (IAA) with a lectin from Canavalia maritima seeds reveal a new function for lectins in plant physiology. Biochimie 2013; 95:1697-703. [DOI: 10.1016/j.biochi.2013.05.008] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2013] [Accepted: 05/17/2013] [Indexed: 01/03/2023]
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Carneiro RF, de Melo AA, Nascimento FEPD, Simplicio CA, Nascimento KSD, Rocha BAMD, Saker-Sampaio S, Moura RDM, Mota SS, Cavada BS, Nagano CS, Sampaio AH. Halilectin 1 (H-1) and Halilectin 2 (H-2): two new lectins isolated from the marine sponge Haliclona caerulea. J Mol Recognit 2013; 26:51-8. [PMID: 23280618 DOI: 10.1002/jmr.2243] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2012] [Revised: 09/13/2012] [Accepted: 09/18/2012] [Indexed: 11/10/2022]
Abstract
Two new lectins named Halilectin 1 (H-1) and Halilectin 2 (H-2) were isolated from the marine sponge Haliclona caerulea using a combination of affinity chromatography on stroma fixed onto Sephadex G-25 and cation and anion exchange chromatography. H-1 is a monomeric protein with a molecular mass of 40 kDa estimated using sodium dodecyl sulfate polyacrylamide gel electrophoresis and 15 kDa estimated using a TSK gel. Conversely, H-2 is a homodimeric protein with 15 kDa monomers linked via weak interactions. H-1 more effectively agglutinates trypsinized rabbit erythrocytes, whereas H-2 more effectively agglutinates native rabbit erythrocytes. The hemagglutinating activity of H-1 could be not inhibited by any tested sugars, but H-2 was inhibited by orosomucoid and porcine stomach mucin. Neither lectin was dependent on divalent ions. H-1 was stable at basic pH range and temperatures up to 50 °C, whereas H-2 was stable at acid pH range and temperatures up to 80 °C. The H. caerulea lectins exhibited dose-dependent toxicity against Artemia nauplii. Additionally, 76% of the primary structure of H-2 was determined using tandem mass spectrometry to contain a unique amino acid sequence with no similarity to any members of the animal lectin family.
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Affiliation(s)
- Rômulo Farias Carneiro
- Laboratório de Moléculas Biologicamente Ativas-BioMol-Lab, Departamento de Bioquímica e Biologia Molecular, Universidade Federal do Ceará, Campus do Pici, s/n Bloco 907, 60440-970 Fortaleza, Ceará, Brazil
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Bezerra MJB, Rodrigues NVFC, Pires ADF, Bezerra GA, Nobre CB, Alencar KLDL, Soares PMG, Nascimento KSD, Nagano CS, Martins JL, Gruber K, Sampaio AH, Delatorre P, Rocha BAM, Assreuy AMS, Cavada BS. Crystal structure of Dioclea violacea lectin and a comparative study of vasorelaxant properties with Dioclea rostrata lectin. Int J Biochem Cell Biol 2013; 45:807-15. [DOI: 10.1016/j.biocel.2013.01.012] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2012] [Revised: 12/23/2012] [Accepted: 01/14/2013] [Indexed: 12/16/2022]
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21
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Pereira-Junior FN, Silva HC, Freitas BT, Rocha BAM, Nascimento KS, Nagano CS, Leal RB, Sampaio AH, Cavada BS. Purification and characterization of a mannose/N-acetyl-D-glucosamine-specific lectin from the seeds of Platymiscium floribundum Vogel. J Mol Recognit 2012; 25:443-9. [PMID: 22811069 DOI: 10.1002/jmr.2207] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Platymiscium floribundum lectin (PFL), a mannose/N-acetyl-D-glucosamine-specific lectin, was isolated from P. floribundum seeds using Sepharose-mannose affinity media chromatography. PFL is a glycoprotein that is a potent agglutinin for rabbit erythrocytes. In addition, PFL is highly stable because it is able to maintain its hemagglutinating activity after exposure to temperatures of up to 60 °C for 1 h and exposure to a wide pH range. The PFL purification process was monitored using sodium dodecyl sulfate-polyacrylamide gel electrophoresis, and the results showed that the purified lectin consists of a single band with a molecular mass of approximately 29 kDa in either the presence or the absence of a reducing agent. The analysis of purified PFL by electrospray ionization-mass spectrometry showed that most ions had a molecular weight of 27,053 ± 2 Da, and other less abundant ions had similar molecular weights. Gel filtration shows that the lectin exists as a dimer in solution with mass at approximately 65 kDa. Sixteen peptides were sequenced, and as a result, a total of 130 amino acids were identified and resulted in a coverage of approximately 65% of the PFL sequence. The partial sequence of PFL was aligned with sequences of other lectins from evolutionarily related species, and PFL showed considerable similarity to the other lectins.
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Souza Teixeira C, da Silva HC, de Moura TR, Pereira-Júnior FN, do Nascimento KS, Nagano CS, Sampaio AH, Delatorre P, Rocha BAM, Cavada BS. Crystal structure of the lectin of Camptosema pedicellatum: implications of a conservative substitution at the hydrophobic subsite. J Biochem 2012; 152:87-98. [PMID: 22554687 DOI: 10.1093/jb/mvs047] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Lectins have been used as models for studies of the molecular basis of protein-carbohydrate interaction and specificity by deciphering codes present in the glycan structures. The purpose of the present study was to purify and solve the complete primary and crystal structure of the lectin of Camptosema pedicellatum (CPL) complexed with 5-bromo-4-chloro-3-indolyl-α-d-mannose (X-Man) using tandem mass spectrometry. CPL was purified by single-step affinity chromatography. Mass spectrometry findings revealed that purified CPL features a combination of chains weighing 25,298 ± 2 (α-chain), 12,835 ± 2 (β-chain) and 12,481 ± 2 Da (γ-chain). The solved crystal structure of CPL features a conservative mutation in the hydrophobic subsite, a constituent of the carbohydrate recognition domain (CRD), indicating the relevance of hydrophobic interactions in the establishment of interactions with carbohydrates. The substitution and the analysis of the interactions with X-Man also revealed that the hydrophobic effect caused by a minor change in the hydrophobic subsite interferes in the formation of H-bonds due to the reorientation of the indolyl group in the CRD.
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Affiliation(s)
- Claudener Souza Teixeira
- BioMol-Lab, Laboratório de Moléculas Biologicamente Ativas, Departamento de Bioquímica e Biologia Molecular, Universidade Federal do Ceará, Fortaleza, Ceará 60440-970, Brazil
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Simões RC, Rocha BAM, Bezerra MJB, Barroso-Neto IL, Pereira-Junior FN, da Mata Moura R, do Nascimento KS, Nagano CS, Delatorre P, de Freitas Pires A, Assreuy AMS, Sampaio AH, Cavada BS. Protein crystal content analysis by mass spectrometry and preliminary X-ray diffraction of a lectin from Canavalia grandiflora seeds with modulatory role in inflammation. Rapid Commun Mass Spectrom 2012; 26:811-818. [PMID: 22368061 DOI: 10.1002/rcm.6171] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
RATIONALE Lectins are a family of proteins capable of deciphering the glycan code. Several authors have published works about crystallization and mass spectrometry analyses of ConA-like lectins. However, mass spectrometry has never been used to characterize lectin crystal content. In this study, Canavalia grandiflora lectin (ConGF), a ConA-like lectin, was crystallized, part of its primary structure sequenced and the pro-inflammatory activity evaluated. In addition, the crystal content was analyzed by mass spectrometry. METHODS ConGF was crystallized in the presence of X-Man by hanging-drop vapor diffusion at 293 K and the protein crystal content was analyzed by electrospray ionization in a SYNAPT HDMS mass spectrometer. Partial sequence was obtained by protein digestion with several proteolytic enzymes and the peptides sequenced by liquid chromatography/tandem mass spectrometry (LC/MS/MS). The pro-inflammatory potential of ConGF was also evaluated in the model of rat paw edema. RESULTS The protein crystals consist of mature α chain and β and γ fragments measuring 25 612 ± 2 Da, 12 962 ± 2 Da and 12 667 ± 2 Da, respectively. The crystal belongs to the orthorhombic space group I222 (unit cell parameters: a = 67.70, b = 55.90, c = 107.46 Å), assuming a monomer in the asymmetric unit. The solvent content was calculated as 43.50% and the protein content as 2.5 µg. Furthermore, a significant part of the primary structure (65.8%) was determined by mass spectrometry. CONCLUSIONS As far as we know this is the first report of lectin crystal content characterized by mass spectrometry. Like other ConA-like lectins, GonGF induced paw edema however differing in potency and duration. The observed pro-inflammatory activity suggests that ConGF might be a useful tool in the study of inflammation processes and structure/function relationships.
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Affiliation(s)
- Rafael Conceição Simões
- Laboratório de Moléculas Biologicamente Ativas, Universidade Federal do Ceará, Fortaleza, Brazil
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Correia JLA, do Nascimento ASF, Cajazeiras JB, Gondim ACS, Pereira RI, de Sousa BL, da Silva ALC, Garcia W, Teixeira EH, do Nascimento KS, da Rocha BAM, Nagano CS, Sampaio AH, Cavada BS. Molecular characterization and tandem mass spectrometry of the lectin extracted from the seeds of Dioclea sclerocarpa Ducke. Molecules 2011; 16:9077-89. [PMID: 22037666 PMCID: PMC6264274 DOI: 10.3390/molecules16119077] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2011] [Revised: 10/20/2011] [Accepted: 10/21/2011] [Indexed: 12/04/2022] Open
Abstract
Lectin from the seeds of Dioclea sclerocarpa (DSL) was purified in a single step by affinity chromatography on a Sephadex G-50 column. The primary sequence, as determined by tandem mass spectrometry, revealed a protein with 237 amino acids and 81% of identity with ConA. DSL has a molecular mass of 25,606 Da. The β and γ chains weigh 12,873 Da and 12,752 Da, respectively. DSL hemagglutinated rabbit erythrocytes (both native and treated with proteolytic enzymes), showing stability even after one hour of exposure to a specific pH range. The hemagglutinating activity of DSL was optimal between pH 6.0 and 8.0, but was inhibited after incubation with D-galactose and D-glucose. The pure protein possesses a molecular mass of 25 kDa by SDS-PAGE and 25,606 Da by mass spectrometry. The secondary structure content was estimated using the software SELCON3. The results indicate that b-sheet secondary structures are predominant in DSL (approximately 42.3% antiparallel b-sheet and 6.7% parallel b-sheet). In addition to the b-sheet, the predicted secondary structure of DSL features 4.1% a-helices, 15.8% turns and 31.3% other contributions. Upon thermal denaturation, evaluated by measuring changes in ellipticity at 218 nm induced by a temperature increase from 20 °C to 98 °C, DSL displayed cooperative sigmoidal behavior with transition midpoint at 84 °C and permitted the observation of two-state model (native and denatured).
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Affiliation(s)
- Jorge Luis Almeida Correia
- Laboratório de Moléculas Biologicamente Ativas (Biomol-Lab), Departamento de Bioquímica e Biologia Molecular, Universidade Federal do Ceará, Av. Humberto Monte s/n, Bloco 907, Lab. 1075, Campus do Pici, Fortaleza-CE, 60440-970, Brazil
| | - Antônia Sâmia Fernandes do Nascimento
- Laboratório de Moléculas Biologicamente Ativas (Biomol-Lab), Departamento de Bioquímica e Biologia Molecular, Universidade Federal do Ceará, Av. Humberto Monte s/n, Bloco 907, Lab. 1075, Campus do Pici, Fortaleza-CE, 60440-970, Brazil
| | - João Batista Cajazeiras
- Laboratório de Moléculas Biologicamente Ativas (Biomol-Lab), Departamento de Bioquímica e Biologia Molecular, Universidade Federal do Ceará, Av. Humberto Monte s/n, Bloco 907, Lab. 1075, Campus do Pici, Fortaleza-CE, 60440-970, Brazil
| | - Ana Cláudia Silva Gondim
- Laboratório de Moléculas Biologicamente Ativas (Biomol-Lab), Departamento de Bioquímica e Biologia Molecular, Universidade Federal do Ceará, Av. Humberto Monte s/n, Bloco 907, Lab. 1075, Campus do Pici, Fortaleza-CE, 60440-970, Brazil
| | - Ronniery Ilario Pereira
- Laboratório de Moléculas Biologicamente Ativas (Biomol-Lab), Departamento de Bioquímica e Biologia Molecular, Universidade Federal do Ceará, Av. Humberto Monte s/n, Bloco 907, Lab. 1075, Campus do Pici, Fortaleza-CE, 60440-970, Brazil
| | - Bruno Lopes de Sousa
- Laboratório de Moléculas Biologicamente Ativas (Biomol-Lab), Departamento de Bioquímica e Biologia Molecular, Universidade Federal do Ceará, Av. Humberto Monte s/n, Bloco 907, Lab. 1075, Campus do Pici, Fortaleza-CE, 60440-970, Brazil
| | - André Luiz Coelho da Silva
- Laboratório de Biotecnologia Molecular (LabBMol), Departamento de Bioquímica e Biologia Molecular, Universidade Federal do Ceará, Av. Humberto Monte s/n, Bloco 907, Lab. 1090, Campus do Pici, Fortaleza-CE, 60440-970, Brazil
| | - Wanius Garcia
- Centro de Ciências Naturais e Humanas, Universidade Federal do ABC, Santo Andre-SP, 09210-170, Brazil
| | - Edson Holanda Teixeira
- Laboratório de Imunologia e Bioquímica de Sobral (LIBS), Faculdade de Medicina, Universidade Federal do Ceará, Sobral-CE, 62042-280, Brazil
| | - Kyria Santiago do Nascimento
- Laboratório de Moléculas Biologicamente Ativas (Biomol-Lab), Departamento de Bioquímica e Biologia Molecular, Universidade Federal do Ceará, Av. Humberto Monte s/n, Bloco 907, Lab. 1075, Campus do Pici, Fortaleza-CE, 60440-970, Brazil
| | - Bruno Anderson Matias da Rocha
- Laboratório de Moléculas Biologicamente Ativas (Biomol-Lab), Departamento de Bioquímica e Biologia Molecular, Universidade Federal do Ceará, Av. Humberto Monte s/n, Bloco 907, Lab. 1075, Campus do Pici, Fortaleza-CE, 60440-970, Brazil
| | - Celso Shiniti Nagano
- Laboratório de Espectrometria de Massa Aplicado a Proteínas (LEMAP/Biomol-Lab), Departamento de Engenharia de Pesca, Universidade Federal do Ceará, Av. Humberto Monte s/n, Bloco 825, Campus do Pici, Fortaleza-CE, 60440-970, Brazil
| | - Alexandre Holanda Sampaio
- Laboratório de Espectrometria de Massa Aplicado a Proteínas (LEMAP/Biomol-Lab), Departamento de Engenharia de Pesca, Universidade Federal do Ceará, Av. Humberto Monte s/n, Bloco 825, Campus do Pici, Fortaleza-CE, 60440-970, Brazil
| | - Benildo Sousa Cavada
- Laboratório de Moléculas Biologicamente Ativas (Biomol-Lab), Departamento de Bioquímica e Biologia Molecular, Universidade Federal do Ceará, Av. Humberto Monte s/n, Bloco 907, Lab. 1075, Campus do Pici, Fortaleza-CE, 60440-970, Brazil
- Author to whom correspondence should be addressed; ; Tel./Fax: +55-85-3366-9818
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Rangel TBA, Assreuy AMS, de Freitas Pires A, de Carvalho AU, Benevides RG, da Conceição Simões R, da Silva HC, Bezerra MJB, do Nascimento ASF, do Nascimento KS, Nagano CS, Sampaio AH, Delatorre P, da Rocha BAM, Fernandes PMB, Cavada BS. Crystallization and characterization of an inflammatory lectin purified from the seeds of Dioclea wilsonii. Molecules 2011; 16:5087-103. [PMID: 21694673 PMCID: PMC6264520 DOI: 10.3390/molecules16065087] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2011] [Revised: 06/07/2011] [Accepted: 06/17/2011] [Indexed: 12/02/2022] Open
Abstract
DwL, a lectin extracted from the seeds of Dioclea wilsonii, is a metalloprotein with strong agglutinating activity against rabbit and ABO erythrocytes, inhibited by glucose and mannose. DwL was purified by affinity chromatography on a Sephadex G-50 column and ion exchange chromatography on a HiTrap SP XL column. SDS-PAGE revealed three electrophoretic bands corresponding to the α (25,634 ± 2 Da), β (12,873 ± 2 Da) and γ (12,779 ± 2 Da) chains. Protein sequencing was done by Tandem Mass Spectrometry. The primary sequence featured 237 amino acids and was highly homologous to other reported Diocleinae lectins. A complete X-ray dataset was collected at 2.0 Å for X-Man-complexed DWL crystals produced by the vapor diffusion method. The crystals were orthorhombic and belonged to the space group I222, with the unit-cell parameters a = 59.6, b = 67.9 and c = 109.0 Å. DWL differed in potency from other ConA-like lectins and was found to induce neutrophil migration in rats, making it particularly useful in structural/functional studies of this class of proteins.
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Affiliation(s)
- Thaiz Batista Azevedo Rangel
- Núcleo de Biotecnologia, Centro de Ciências da Saúde, Universidade Federal do Espírito Santo, Vitória, ES 29040-090, Brazil; (T.B.A.R); (A.U.C.)
| | - Ana Maria Sampaio Assreuy
- Instituto Superior de Ciências Biomédicas, Universidade Estadual do Ceará, P. O. Box 6043, 60455-970 Fortaleza, Ceará, Brazil; (A.M.S.A.); (A.F.P.)
| | - Alana de Freitas Pires
- Instituto Superior de Ciências Biomédicas, Universidade Estadual do Ceará, P. O. Box 6043, 60455-970 Fortaleza, Ceará, Brazil; (A.M.S.A.); (A.F.P.)
| | - Amanda Uliana de Carvalho
- Núcleo de Biotecnologia, Centro de Ciências da Saúde, Universidade Federal do Espírito Santo, Vitória, ES 29040-090, Brazil; (T.B.A.R); (A.U.C.)
| | - Raquel Guimarães Benevides
- Laboratório de Moléculas Biologicamente Ativas, Departamento de Bioquímica e Biologia Molecular, Universidade Federal do Ceará, P. O. Box 6043, 60455-970 Fortaleza, Ceará, Brazil; (R.G.B.); (R.C.S.); (H.C.S.); (M.J.B.B.); (A.S.F.N.); (K.S.N.); (C.S.N); (A.H.S.); (B.A.M.R.)
| | - Rafael da Conceição Simões
- Laboratório de Moléculas Biologicamente Ativas, Departamento de Bioquímica e Biologia Molecular, Universidade Federal do Ceará, P. O. Box 6043, 60455-970 Fortaleza, Ceará, Brazil; (R.G.B.); (R.C.S.); (H.C.S.); (M.J.B.B.); (A.S.F.N.); (K.S.N.); (C.S.N); (A.H.S.); (B.A.M.R.)
| | - Helton Colares da Silva
- Laboratório de Moléculas Biologicamente Ativas, Departamento de Bioquímica e Biologia Molecular, Universidade Federal do Ceará, P. O. Box 6043, 60455-970 Fortaleza, Ceará, Brazil; (R.G.B.); (R.C.S.); (H.C.S.); (M.J.B.B.); (A.S.F.N.); (K.S.N.); (C.S.N); (A.H.S.); (B.A.M.R.)
| | - Maria Júlia Barbosa Bezerra
- Laboratório de Moléculas Biologicamente Ativas, Departamento de Bioquímica e Biologia Molecular, Universidade Federal do Ceará, P. O. Box 6043, 60455-970 Fortaleza, Ceará, Brazil; (R.G.B.); (R.C.S.); (H.C.S.); (M.J.B.B.); (A.S.F.N.); (K.S.N.); (C.S.N); (A.H.S.); (B.A.M.R.)
| | - Antonia Samia Fernandes do Nascimento
- Laboratório de Moléculas Biologicamente Ativas, Departamento de Bioquímica e Biologia Molecular, Universidade Federal do Ceará, P. O. Box 6043, 60455-970 Fortaleza, Ceará, Brazil; (R.G.B.); (R.C.S.); (H.C.S.); (M.J.B.B.); (A.S.F.N.); (K.S.N.); (C.S.N); (A.H.S.); (B.A.M.R.)
| | - Kyria Santiago do Nascimento
- Laboratório de Moléculas Biologicamente Ativas, Departamento de Bioquímica e Biologia Molecular, Universidade Federal do Ceará, P. O. Box 6043, 60455-970 Fortaleza, Ceará, Brazil; (R.G.B.); (R.C.S.); (H.C.S.); (M.J.B.B.); (A.S.F.N.); (K.S.N.); (C.S.N); (A.H.S.); (B.A.M.R.)
| | - Celso Shiniti Nagano
- Laboratório de Moléculas Biologicamente Ativas, Departamento de Bioquímica e Biologia Molecular, Universidade Federal do Ceará, P. O. Box 6043, 60455-970 Fortaleza, Ceará, Brazil; (R.G.B.); (R.C.S.); (H.C.S.); (M.J.B.B.); (A.S.F.N.); (K.S.N.); (C.S.N); (A.H.S.); (B.A.M.R.)
| | - Alexandre Holanda Sampaio
- Laboratório de Moléculas Biologicamente Ativas, Departamento de Bioquímica e Biologia Molecular, Universidade Federal do Ceará, P. O. Box 6043, 60455-970 Fortaleza, Ceará, Brazil; (R.G.B.); (R.C.S.); (H.C.S.); (M.J.B.B.); (A.S.F.N.); (K.S.N.); (C.S.N); (A.H.S.); (B.A.M.R.)
| | - Plínio Delatorre
- Departamento de Biologia Molecular, Centro de Ciências Exatas e da Natureza - Campus I, Universidade Federal da Paraíba, Caixa Postal 5009, 58051-970, João Pessoa, PB, Brazil;
| | - Bruno Anderson Matias da Rocha
- Laboratório de Moléculas Biologicamente Ativas, Departamento de Bioquímica e Biologia Molecular, Universidade Federal do Ceará, P. O. Box 6043, 60455-970 Fortaleza, Ceará, Brazil; (R.G.B.); (R.C.S.); (H.C.S.); (M.J.B.B.); (A.S.F.N.); (K.S.N.); (C.S.N); (A.H.S.); (B.A.M.R.)
| | - Patricia Machado Bueno Fernandes
- Núcleo de Biotecnologia, Centro de Ciências da Saúde, Universidade Federal do Espírito Santo, Vitória, ES 29040-090, Brazil; (T.B.A.R); (A.U.C.)
| | - Benildo Sousa Cavada
- Laboratório de Moléculas Biologicamente Ativas, Departamento de Bioquímica e Biologia Molecular, Universidade Federal do Ceará, P. O. Box 6043, 60455-970 Fortaleza, Ceará, Brazil; (R.G.B.); (R.C.S.); (H.C.S.); (M.J.B.B.); (A.S.F.N.); (K.S.N.); (C.S.N); (A.H.S.); (B.A.M.R.)
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Bezerra EHS, Rocha BAM, Nagano CS, Bezerra GDA, Moura TRD, Bezerra MJB, Benevides RG, Sampaio AH, Assreuy AMS, Delatorre P, Cavada BS. Structural analysis of ConBr reveals molecular correlation between the carbohydrate recognition domain and endothelial NO synthase activation. Biochem Biophys Res Commun 2011; 408:566-70. [DOI: 10.1016/j.bbrc.2011.04.061] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2011] [Accepted: 04/14/2011] [Indexed: 10/18/2022]
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Pires-Cavalcante KMDS, de Alencar DB, de Sousa MB, Sampaio AH, Saker-Sampaio S. Seasonal Changes of α-Tocopherol in Green Marine Algae (Caulerpa genus). J Food Sci 2011; 76:C775-81. [DOI: 10.1111/j.1750-3841.2011.02182.x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Alencar VBM, Assreuy AMS, Alencar NMN, Meireles AVP, Mota MRL, Aragão KS, Cajazeiras JB, Nagano CS, Brito GAC, Silva LIMM, Pinto VPT, Sampaio AH, Debray H, Cavada BS, Ribeiro RA. Lectin of Pisum arvense seeds induces in-vivo and in-vitro neutrophil migration. J Pharm Pharmacol 2010; 57:375-81. [PMID: 15807994 DOI: 10.1211/0022357055579] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
Abstract
Abstract
PAL is a glucose/mannose-specific lectin isolated from Pisum arvense seeds. Previously, we demonstrated the capacity of other leguminous lectins to induce oedema formation and neutrophil stimulation. To investigate the potential pro-inflammatory activity of PAL, we have studied its ability to induce neutrophil migration into peritoneal cavities of rats and neutrophil chemotaxis in-vitro. The role of resident cells and sugar residues on PAL activity was analysed. PAL or saline (control) were administered intraperitoneally to rats, and total and differential leucocyte (macrophages, neutrophils and mast cells) counts were performed. The role of resident cells on the PAL effect was evaluated using three strategies: reducing the total resident cell population by lavage of rat cavities with saline; increasing macrophage population by treating animals with thioglycolate; and depleting mast cell population by subchronic treatment of rats with compound 48/80. PAL induced in-vitro and in-vivo neutrophil migration. In-vivo, PAL (50, 100, 200 and 300 μg) significantly (P < 0.05) and dose-dependently increased neutrophil migration by 600, 740, 900 and 940%, respectively, showing maximal effect 4 h after injection. PAL induced mononuclear cell migration. The neutrophil stimulatory effect of PAL was potentiated in animals treated with both thioglycolate and compound 48/80. The indirect lectin chemotactic effect was shown in rats injected with supernatant from cultured macrophages stimulated by PAL. In conclusion, PAL was shown to exhibit in-vivo and in-vitro proinflammatory activity. The in-vivo effect seemed to occur by a dual mechanism that was independent, but also dependent, on resident cells.
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Affiliation(s)
- V B M Alencar
- Departamento de Fisiologia e Farmacologia, Faculdade de Medicina, Universidade Federal do Ceará, Brazil, Cel Nunes de Melo, 1127, 60430-270, Fortaleza-Ceará-Brasil
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Sousa MBD, Pires KMDS, Alencar DBD, Sampaio AH, Saker-Sampaio S. α-, β-caroteno e α-tocoferol em algas marinhas in natura. Ciênc Tecnol Aliment 2008. [DOI: 10.1590/s0101-20612008000400030] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Teixeira EH, Napimoga MH, Carneiro VA, de Oliveira TM, Nascimento KS, Nagano CS, Souza JB, Havt A, Pinto VPT, Gonçalves RB, Farias WRL, Saker-Sampaio S, Sampaio AH, Cavada BS. In vitro inhibition of oral streptococci binding to the acquired pellicle by algal lectins. J Appl Microbiol 2008; 103:1001-6. [PMID: 17897204 DOI: 10.1111/j.1365-2672.2007.03326.x] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
AIMS The initial colonization of the tooth by streptococci involves their attachment to adsorbed components of the acquired pellicle. Avoiding this adhesion may be successful in preventing caries at early stages. Salivary mucins are glycoproteins that when absorbed onto hydroxyapatite may provide binding sites for certain bacteria. Algal lectins may be especially interesting for oral antiadhesion trials because of their great stability and high specificity for mucins. This work aimed to evaluate the potential of two algal lectins to inhibit the adherence of five streptococci species to the acquired pellicle in vitro. METHODS AND RESULTS The lectins used were extracted from Bryothamnion triquetrum (BTL) and Bryothamnion seaforthii (BSL). Fluorescence microscopy was applied to visualize the ability of fluorescein isothiocyanate-labelled lectins to attach to the pellicle and revealed a similar capability for both lectins. Streptococcal adherence assays were performed using saliva-coated microtitre plates. BSL inhibited more than 75% of Streptococcus sanguis, Streptococcus mitis, Streptococcus sobrinus and Streptococcus mutans adherence, achieving 92% to the latter. BTL only obtained statistically significant results on S. mitis and S. sobrinus, whose adherence was decreased by 32.5% and 54.4%, respectively. CONCLUSION Algal lectins are able to inhibit streptococcal adherence. SIGNIFICANCE AND IMPACT OF THE STUDY Our results support the proposed application of lectins in antiadhesion therapeutics.
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Affiliation(s)
- E H Teixeira
- Faculdade de Medicina de Sobral, Universidade Federal do Ceará, Fortaleza-CE, Brazil
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Assreuy AMS, Gomes DM, da Silva MSJ, Torres VM, Siqueira RCL, Pires ADF, Criddle DN, de Alencar NMN, Cavada BS, Sampaio AH, Farias WRL. Biological Effects of a Sulfated-Polysaccharide Isolated from the Marine Red Algae Champia feldmannii. Biol Pharm Bull 2008; 31:691-5. [DOI: 10.1248/bpb.31.691] [Citation(s) in RCA: 47] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
| | | | | | | | | | | | - David Neil Criddle
- MRC Secretory Control Research Group, The Physiological Laboratory, University of Liverpool
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Nascimento KS, Nagano CS, Nunes EV, Rodrigues RF, Goersch GV, Cavada BS, Calvete JJ, Saker-Sampaio S, Farias WRL, Sampaio AH. Isolation and characterization of a new agglutinin from the red marine algaHypnea cervicornisJ. Agardh. Biochem Cell Biol 2006; 84:49-54. [PMID: 16462889 DOI: 10.1139/o05-152] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
The biochemical characterization of a new lectin (Hypnea cervicornis agglutinin or HCA) isolated from the Brazilian red alga H. cervicornis is reported. The haemagglutinating activity of the lectin was only inhibited by the glycoprotein porcine stomach mucin at a minimum inhibitory concentration of 19 µg·mL–1. No haemagglutination inhibition was detected after the addition of simple sugars. The MALDI-TOF molecular masses of native and reduced and carbamidomethylated HCA were, respectively, 9196.6 Da and 9988.2 Da, indicating that the primary structure of the protein is crosslinked by 7 disulfide bonds. This unusual structural feature among lectins, along with its N-terminal sequence and amino-acid composition, clearly shows that HCA belongs to a protein family distinct from the isolectins Hypnin A1 and A2 isolated from the related Japanese alga Hypnea japonica. On the other hand, HCA displayed a high degree of similarity to the agglutinin from the Brazilian species Hypnea musciformis. Our data indicate the occurrence of structural diversity among lectins of closely related species living in distant ecosystems, i.e., the Pacific coast of Japan and the Atlantic coast of Brazil, and support the hypothesis that the lectin content (lectinome) might serve as a biomarker for taxonomical purposes.Key words: agglutinin, lectin, isolation, Hypnea cervicornis, red marine alga.
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Affiliation(s)
- K S Nascimento
- Departamento de Bioquímica e Biologia Molecular, Universidade Federal do Ceará, Fortaleza-Ceará, Brazil
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Abstract
Histamine release induced by plant lectins was studied with emphasis on the carbohydrate specificity, external calcium requirement, metal binding sites, and mast cell heterogeneity and on the importance of antibodies bound to the mast cell membrane to the lectin effect. Peritoneal mast cells were obtained by direct lavage of the rat peritoneal cavity and guinea pig intestine and hamster cheek pouch mast cells were obtained by dispersion with collagenase type IA. Histamine release was induced with concanavalin A (Con A), lectins from Canavalia brasiliensis, mannose-specific Cymbosema roseum, Maackia amurensis, Parkia platycephala, Triticum vulgaris (WGA), and demetallized Con A and C. brasiliensis, using 1-300 microg/ml lectin concentrations applied to Wistar rat peritoneal mast cells, peaking on 26.9, 21.0, 29.1, 24.9, 17.2, 10.7, 19.9, and 41.5%, respectively. This effect was inhibited in the absence of extracellular calcium. The lectins were also active on hamster cheek pouch mast cells (except demetallized Con A) and on Rowett nude rat (animal free of immunoglobulins) peritoneal mast cells (except for mannose-specific C. roseum, P. platycephala and WGA). No effect was observed in guinea pig intestine mast cells. Glucose-saturated Con A and C. brasiliensis also released histamine from Wistar rat peritoneal mast cells. These results suggest that histamine release induced by lectins is influenced by the heterogeneity of mast cells and depends on extracellular calcium. The results also suggest that this histamine release might occur by alternative mechanisms, because the usual mechanism of lectins is related to their binding properties to metals from which depend the binding to sugars, which would be their sites to bind to immunoglobulins. In the present study, we show that the histamine release by lectins was also induced by demetallized lectins and by sugar-saturated lectins (which would avoid their binding to other sugars). Additionally, the lectins also released histamine from Rowett nude mast cells that are free of immunoglobulins.
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Affiliation(s)
- F C Lopes
- Departamento de Farmacologia, Instituto de Biociências, Universidade Estadual Paulista, 18618-000 Botucatu, SP, Brasil
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Teixeira DIA, Cavada BS, Sampaio AH, Havt A, Bloch C, Prates MV, Moreno FBMB, Santos EA, Gadelha CAA, Gadelha TS, Crisóstomo FSM, Freitas VJF. Isolation and partial characterisation of a protein from buck seminal plasma (Capra hircus), homologous to spermadhesins. Protein Pept Lett 2002; 9:331-5. [PMID: 12144510 DOI: 10.2174/0929866023408670] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Spermadhesins are a family of secretory proteins expressed in the male genital tract of pig, horse and bull. Their function and structure have been widely studied, especially those isolated from boar. However, there are no data concerning spermadhesins isolated from buck. Buck seminal plasma was collected and subjected to ion exchange chromatography on DEAE-Sephacel column followed by chromatography in a C18 column coupled to a HPLC system. The purification of the protein was determined by SDS-PAGE and MALDI-TOF analysis exhibiting a molecular mass of 12.5 KDa and showed to be structurally homologous to spermadhesins from boar and stallion.
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Affiliation(s)
- D I A Teixeira
- State University of Ceará, Laboratory of Physiology and Control of Reproduction, Fortaleza, Brazil CE 60740-000
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Nagano CS, Moreno FBMB, Bloch C, Prates MV, Calvete JJ, Saker-Sampaio S, Farias WRL, Tavares TD, Nascimento KS, Grangeiro TB, Cavada BS, Sampaio AH. Purification and characterization of a new lectin from the red marine alga Hypnea musciformis. Protein Pept Lett 2002; 9:159-66. [PMID: 12141914 DOI: 10.2174/0929866023408931] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
A lectin from the red marine alga Hypnea musciformis (HML) was purified by extraction with 20 mM PBS, precipitation with 70% saturated ammonium sulphate, ion-exchange DEAE-Cellulose chromatography and RP-HPLC. The 9.3 kDa polypeptide agglutinates erythrocytes from various sources and shows oligomerization tendencies under certain MALDI-TOF/MS conditions. Preliminary N-terminal sequencing and biological assays strongly suggest that the HML may belong to a new class of algae lectins.
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Affiliation(s)
- C S Nagano
- Laboratório de Bioquímica Marinha - BioMol-Lab, Depto de Engenharia de Pesca, Universidade Federal do Ceará, Caixa Postal 6033, CEP 60451-970, Brasil
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Ceccatto VM, Cavada BS, Nunes EP, Nogueira NAP, Grangeiro MB, Moreno FBMB, Teixeira EH, Sampaio AH, Alves MAO, Ramos MV, Calvete JJ, Grangeiro TB. Purification and partial characterization of a lectin from Canavalia grandiflora benth. seeds. Protein Pept Lett 2002; 9:67-73. [PMID: 12141926 DOI: 10.2174/0929866023409002] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
A D-glucose/D-mannose specific lectin from seeds of Canavalia grandiflora (ConGF) was purified by affinity chromatography on Sephadex G-50. By SDS-PAGE ConGF yielded three protein bands with apparent molecular masses of 29-30 kDa (alpha chain), 16-18 kDa (beta fragment) and 12-13 kDa (gamma fragment), like other related lectins from the genus Canavalia (Leguminosae). ConGF strongly agglutinates rabbit erythrocytes, has a high content of ASP and SER, and its N-terminal sequence (30 residues) is highly similar to the sequences of other related lectins from subtribe Diocleinae.
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Affiliation(s)
- V M Ceccatto
- Depto de Geociências/Universidade Estadual do Ceará, Caixa Postal 6033, CEP 60451-970, Fortaleza-Ceará, Brasil
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Wah DA, Romero A, Gallego del Sol F, Cavada BS, Ramos MV, Grangeiro TB, Sampaio AH, Calvete JJ. Crystal structure of native and Cd/Cd-substituted Dioclea guianensis seed lectin. A novel manganese-binding site and structural basis of dimer-tetramer association. J Mol Biol 2001; 310:885-94. [PMID: 11453695 DOI: 10.1006/jmbi.2001.4814] [Citation(s) in RCA: 37] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Diocleinae legume lectins are a group of oligomeric proteins whose subunits display a high degree of primary structure and tertiary fold conservation but exhibit considerable diversity in their oligomerisation modes. To elucidate the structural determinants underlaying Diocleinae lectin oligomerisation, we have determined the crystal structures of native and cadmium-substituted Dioclea guianensis (Dguia) seed lectin. These structures have been solved by molecular replacement using concanavalin (ConA) coordinates as the starting model, and refined against data to 2.0 A resolution. In the native (Mn/Ca-Dguia) crystal form (P4(3)2(1)2), the asymmetric unit contains two monomers arranged into a canonical legume lectin dimer, and the tetramer is formed with a symmetry-related dimer. In the Cd/Cd-substituted form (I4(1)22), the asymmetric unit is occupied by a monomer. In both crystal forms, the tetrameric association is achieved by the corresponding symmetry operators. Like other legume lectins, native D. guianensis lectin contains manganese and calcium ions bound in the vicinity of the saccharide-combining site. The architecture of these metal-binding sites (S1 and S2) changed only slightly in the cadmium/cadmium-substituted form. A highly ordered calcium (native lectin) or cadmium (Cd/Cd-substituted lectin) ion is coordinated at the interface between dimers that are not tetrameric partners in a similar manner as the previously identified Cd(2+) in site S3 of a Cd/Ca-ConA. An additional Mn(2+) coordination site (called S5), whose presence has not been reported in crystal structures of any other homologous lectin, is present in both, the Mn/Ca and the Cd/Cd-substituted D. guianensis lectin forms. On the other hand, comparison of the primary and quaternary crystal structures of seed lectins from D. guianensis and Dioclea grandiflora (1DGL) indicates that the loop comprising residues 117-123 is ordered to make interdimer contacts in the D. grandiflora lectin structure, while this loop is disordered in the D. guianensis lectin structure. A single amino acid difference at position 131 (histidine in D. grandiflora and asparagine in D. guianensis) drastically reduces interdimer contacts, accounting for the disordered loop. Further, this amino acid change yields a conformation that may explain why a pH-dependent dimer-tetramer equilibrium exists for the D. guianensis lectin but not for the D. grandiflora lectin.
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Affiliation(s)
- D A Wah
- Centro de Investigaciones Biológicas, C.S.I.C., Madrid, Spain
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Ramos MV, Sampaio AH, Cavada BS, Calvete JJ, Grangeiro TB, Debray H. Characterization of the sugar-binding specificity of the toxic lectins isolated from Abrus pulchellus seeds. Glycoconj J 2001; 18:391-400. [PMID: 11925506 DOI: 10.1023/a:1014812114450] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
The sugar-binding specificity of the toxic lectins from Abrus pulchellus seeds was investigated by combination of affinity chromatography of glycopeptides and oligosaccharides of well-defined structures on a lectin-Sepharose column and measurement of the kinetic interactions in real time towards immobilized glycoproteins. The lectins showed strong affinity for a series of bi- and triantennary N-acetyllactosamine type glycans. The related asialo-oligosaccharides interact more strongly with the lectins. The best recognized structures were asialo-glycopeptides from fetuin. Accordingly, the kinetic interaction with immobilized asialofetuin was by far the most pronounced. Human and bovine lactotransferrins and human serotransferrin interacted to a lesser extent. The interaction with asialofetuin was inhibited by galactose in a dose dependent manner. Lactose, N-acetyllactosamine and lacto-N-biose exhibited similar degree of inhibition while N-acetylgalactosamine was a poor inhibitor. These results suggested that the carbohydrate-binding site of the Abrus pulchellus lectins was specific for galactose and possess a remarkable affinity for the sequences lactose [beta-D-Gal-(1-->4)-D-Glc], N-acetyllactosamine [beta-D-Gal-(1-->4)-D-GlcNAc] and lacto-N-biose [beta-D-Gal-(1-->3)-D-GlcNAc].
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Affiliation(s)
- M V Ramos
- Departamentos de Biologia, Universidade Federal do Ceara, Campus do Pici, Cx. Postal 6033, Fortaleza-Ceara, Brasil, 60.451-970
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Lee HC, Goroncy AK, Peisach J, Cavada BS, Grangeiro TB, Ramos MV, Sampaio AH, Dam TK, Brewer CF. Demonstration of a conserved histidine and two water ligands at the Mn2+ site in Diocleinae lectins by pulsed EPR spectroscopy. Biochemistry 2000; 39:2340-6. [PMID: 10694401 DOI: 10.1021/bi992102b] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Lectins from the Diocleinae subtribe, including Canavalia brasiliensis, Canavalia bonariensis, Canavalia grandiflora, Cratylia floribunda, Dioclea grandiflora, Dioclea guianensis, Dioclea rostrata, Dioclea violacea, and Dioclea virgata, have been recently isolated and characterized in terms of their carbohydrate binding specificities. Although all of the lectins are Man/Glc specific, they possess different biological activities. In the present study, electron paramagnetic resonance (EPR) spectroscopy demonstrates that all nine Diocleinae lectins contain Mn2+. The spectra of C. floribunda and D. rostrata suggest Mn2+ site symmetry different from that of the other seven lectins. However, electron spin-echo envelope modulation (ESEEM) spectroscopy indicates that all nine lectins are coordinated to a histidyl imidazole, with similar electron-nuclear coupling to the Mn2+-bound imidazole nitrogen. ESEEM also demonstrates ligation of two water molecules to Mn2+ in all nine Diocleinae lectins. Thus, the EPR and ESEEM data indicate the presence of a Mn2+ binding site in the above Diocleinae lectins with a conserved histidine residue and two water ligands.
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Affiliation(s)
- H C Lee
- Departments of Molecular Pharmacology, Microbiology and Immunology, Albert Einstein College of Medicine, Bronx, New York 10461, USA
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Calvete JJ, Costa FH, Saker-Sampaio S, Murciano MP, Nagano CS, Cavada BS, Grangeiro TB, Ramos MV, Bloch C, Silveira SB, Freitas BT, Sampaio AH. The amino acid sequence of the agglutinin isolated from the red marine alga Bryothamnion triquetrum defines a novel lectin structure. Cell Mol Life Sci 2000; 57:343-50. [PMID: 10766029 DOI: 10.1007/pl00000696] [Citation(s) in RCA: 38] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
The primary structure of a lectin isolated from the red alga Bryothamnion triquetrum was established by combination of Edman degradation of sets of overlapping peptides and mass spectrometry. It contains 91 amino acids and two disulphide bonds. The primary structure of the B. triquetrum lectin does not show amino acid sequence similarity with known plant and animal lectin structures. Hence, this protein may be the paradigm of a novel lectin family.
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Affiliation(s)
- J J Calvete
- Instituto de Biomedicina de Valencia, Spain.
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Abstract
A lectin from the red marine alga Ptilota filicina (PFL) was isolated by affinity chromatography on cross-linked guar gum. PFL agglutinated native and papain-treated human erythrocytes with preference for type O erythrocytes. The lectin was inhibited by galactose and its derivatives. The most potent inhibitors were p-Nitrophenyl-N-acetyl-alpha- and beta-D-galactosaminide. Porcine stomach mucin, bovine submaxillary gland mucin and asialo bovine mucin were also inhibitory. The M(r) of PFL, determined by gel filtration, was 56,900. SDS-PAGE gave one band with a subunit M(r) of 19,320, indicating the native protein to be a trimer of apparently identical subunits. PFL was shown to be rich in acidic and hydroxyl amino acids but low in basic amino acids. The ten N-terminal amino acids were Asx-Thr-Lys-Thr-Leu-Leu-Ala-.
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Affiliation(s)
- A H Sampaio
- Departamento de Bioquímica e Biologia Molecular, Universidade Federal do Ceará, Brasil
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