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da Silva TF, Leite TA, de Souza FFP, da Silva Barroso W, de Souza Guedes L, da Silva ALC, de Souza BWS, Vieira RS, Andrade FK. Loading of bacterial cellulose dressing with frutalin, a lectin from Artocarpus incisa L. Int J Biol Macromol 2024; 276:133774. [PMID: 39004244 DOI: 10.1016/j.ijbiomac.2024.133774] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2023] [Revised: 06/28/2024] [Accepted: 07/07/2024] [Indexed: 07/16/2024]
Abstract
Bacterial cellulose (BC), produced by bacterial fermentation, is a high-purity material. BC can be oxidized (BCOXI), providing aldehyde groups for covalent bonds with drugs. Frutalin (FTL) is a lectin capable of modulating cell proliferation and remodeling, which accelerates wound healing. This study aimed to develop an FTL-incorporated dressing based on BC, and to evaluate its physicochemical properties and biological activity in vitro. An experimental design was employed to maximize FTL loading yield onto the BC and BCOXI, where independent variables were FTL concentration, temperature and immobilization time. BCOXI-FTL 1 (44.96 % ± 1.34) had the highest incorporation yield (IY) at the experimental conditions: 6 h, 5 °C, 20 μg mL-1. The second highest yield was BCOXI-FTL 6 (23.28 % ± 1.43) using 24 h, 5 °C, 100 μg mL-1. Similarly, the same reaction parameters provided higher immobilization yields for native bacterial cellulose: BC-FTL 6 (16.91 % ± 1.05) and BC-FTL 1 (21.71 % ± 1.57). Purified FTL displayed no cytotoxicity to fibroblast cells (<50 μg mL-1 concentration) during 24 h. Furthermore, BCOXI-FTL and BC-FTL were non-cytotoxic during 24 h and stimulated fibroblast migration. BCOXI-FTL demonstrated neutrophil activation in vitro similar to FTL. These promising results indicate that the bacterial cellulose matrices containing FTL at low concentrations, could be used as an innovative biomaterial for developing wound dressings.
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Affiliation(s)
- Thamyres Freire da Silva
- Adsorption Separation Group, Department of Chemical Engineering, Federal University of Ceará, Fortaleza, Ceará 60455-760, Brazil
| | - Talita Abrante Leite
- Molecular and Structural Biotechnology Group, Department of Biochemistry and Biology, Federal University of Ceará, 60020-181 Fortaleza, Ceará, Brazil
| | - Francisco Fábio Pereira de Souza
- Adsorption Separation Group, Department of Chemical Engineering, Federal University of Ceará, Fortaleza, Ceará 60455-760, Brazil
| | - Wallady da Silva Barroso
- Molecular and Structural Biotechnology Group, Department of Biochemistry and Biology, Federal University of Ceará, 60020-181 Fortaleza, Ceará, Brazil
| | - Luciana de Souza Guedes
- Adsorption Separation Group, Department of Chemical Engineering, Federal University of Ceará, Fortaleza, Ceará 60455-760, Brazil
| | - André Luís Coelho da Silva
- Molecular and Structural Biotechnology Group, Department of Biochemistry and Biology, Federal University of Ceará, 60020-181 Fortaleza, Ceará, Brazil.
| | | | - Rodrigo Silveira Vieira
- Adsorption Separation Group, Department of Chemical Engineering, Federal University of Ceará, Fortaleza, Ceará 60455-760, Brazil
| | - Fábia Karine Andrade
- Adsorption Separation Group, Department of Chemical Engineering, Federal University of Ceará, Fortaleza, Ceará 60455-760, Brazil.
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Pinto IR, Chaves HV, Vasconcelos AS, de Sousa FCF, Santi-Gadelha T, de Lacerda JTJG, Ribeiro KA, Freitas RS, Maciel LM, Filho SMP, Viana AFSC, de Almeida Gadelha CA, Filho GC, de Paulo Teixeira Pinto V, Pereira KMA, Rodrigues e Silva AA, Bezerra MM. Antiulcer and Antioxidant Activity of a Lectin from Mucuna pruriens Seeds on Ethanol- induced Gastropathy: Involvement of Alpha-2 Adrenoceptors and Prostaglandins. Curr Pharm Des 2019; 25:1430-1439. [DOI: 10.2174/1381612825666190524081433] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2019] [Accepted: 05/10/2019] [Indexed: 01/01/2023]
Abstract
Ethnopharmacological Relevance:Mucuna pruriens (Mp) belongs to Leguminosae family, it is native of tropical regions and used to treat several maladies such as urinary, neurological, and menstruation disorders, constipation, edema, fever, tuberculosis, ulcers, diabetes, arthritis, dysentery, and cardiovascular diseases. Mp seeds are rich in bioactive compounds, for instance, lectins, a heterogeneous group of proteins and glycoproteins with a potential role as therapeutic tools for several conditions, including gastric disorders. This study investigated the acute toxicity, gastroprotective, and antioxidant activities of a lectin from Mucuna pruriens seeds (MpLec) on ethanol-induced gastropathy model in mice.Materials & Methods:Mice received MpLec (5 or 10 mg/kg; i.v.) and were observed for acute toxicity signs; in another experimental series, mice were pre-treated with MpLec (0.001; 0.01 or 0.1 mg/kg, i.v.), ranitidine (80 mg/kg, p.o.), or saline (0.3 mL/30g, i.v.) before ethanol 99.9% (0.2 mL/animal, p.o.), and euthanized 30 min after ethanol challenge. Macroscopic and microscopic gastric aspects, biochemical parameters (tissue hemoglobin levels, iron-induced lipid peroxidation, GSH content, SOD activity, and gastric mucosal PGE2) were measured. Additionally, pharmacological tools (yohimbine, indomethacin, naloxone, L-NAME) were opportunely used to clarify MpLec gastroprotective mechanisms of action.Results:No toxicity signs nor death were observed at acute toxicity tests. MpLec reduced ethanol-induced gastric damage, edema, and hemorrhagic patches formation, as well as decreased lipid peroxidation, SOD activity, and increased GSH content. Yohimbine and indomethacin prevented MpLec effects, suggesting the involvement of alpha-2 adrenoceptors and prostaglandins in the MpLec-mediated effects.Conclusion:MpLec does not present toxicity signs and shows gastroprotective and antioxidant activities via alpha-2 adrenoceptors and prostaglandins in the ethanol-induced gastropathy model.
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Affiliation(s)
- Isabela Ribeiro Pinto
- Federal University of Ceara, Master of Biotechnology Degree Program, Sobral - Ceara, Brazil
| | - Hellíada V. Chaves
- Federal University of Ceara, Master of Biotechnology Degree Program, Sobral - Ceara, Brazil
| | | | | | - Tatiane Santi-Gadelha
- Federal University of Paraiba, Department of Molecular Biology, Joao Pessoa - Paraiba, Brazil
| | | | - Kátia Alves Ribeiro
- Federal University of Ceara, Master of Biotechnology Degree Program, Sobral - Ceara, Brazil
| | - Raul Sousa Freitas
- Federal University of Ceara, Master of Biotechnology Degree Program, Sobral - Ceara, Brazil
| | - Lara Mendes Maciel
- Federal University of Ceara, Faculty of Medicine, Sobral - Ceara, Brazil
| | | | | | | | - Gerardo Cristino Filho
- Federal University of Ceara, Master of Biotechnology Degree Program, Sobral - Ceara, Brazil
| | | | | | | | - Mirna Marques Bezerra
- Federal University of Ceara, Master of Biotechnology Degree Program, Sobral - Ceara, Brazil
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New structural insights into anomeric carbohydrate recognition by frutalin: an α-d-galactose-binding lectin from breadfruit seeds. Biochem J 2019; 476:101-113. [PMID: 30563945 DOI: 10.1042/bcj20180605] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2018] [Revised: 12/09/2018] [Accepted: 12/14/2018] [Indexed: 12/21/2022]
Abstract
Frutalin (FTL) is a multiple-binding lectin belonging to the jacalin-related lectin (JRL) family and derived from Artocarpus incisa (breadfruit) seeds. This lectin specifically recognizes and binds α-d-galactose. FTL has been successfully used in immunobiological research for the recognition of cancer-associated oligosaccharides. However, the molecular bases by which FTL promotes these specific activities remain poorly understood. Here, we report the whole 3D structure of FTL for the first time, as determined by X-ray crystallography. The obtained crystals diffracted to 1.81 Å (Apo-frutalin) and 1.65 Å (frutalin-d-Gal complex) of resolution. The lectin exhibits post-translational cleavage yielding an α- (133 amino acids) and β-chain (20 amino acids), presenting a homotetramer when in solution, with a typical JRL β-prism. The β-prism was composed of three 4-stranded β-sheets forming three antiparallel Greek key motifs. The carbohydrate-binding site (CBS) involved the N-terminus of the α-chain and was formed by four key residues: Gly25, Tyr146, Trp147 and Asp149. Together, these results were used in molecular dynamics simulations in aqueous solutions to shed light on the molecular basis of FTL-ligand binding. The simulations suggest that Thr-Ser-Ser-Asn (TSSN) peptide excision reduces the rigidity of the FTL CBS, increasing the number of interactions with ligands and resulting in multiple-binding sites and anomeric recognition of α-d-galactose sugar moieties. Our findings provide a new perspective to further elucidate the versatility of FTL in many biological activities.
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Hydrogel and membrane scaffold formulations of Frutalin (breadfruit lectin) within a polysaccharide galactomannan matrix have potential for wound healing. Int J Biol Macromol 2018; 121:429-442. [PMID: 30326222 DOI: 10.1016/j.ijbiomac.2018.10.050] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2018] [Revised: 08/17/2018] [Accepted: 10/12/2018] [Indexed: 12/17/2022]
Abstract
Plant lectins are carbohydrate-binding proteins, which can interact with cell surfaces to initiate anti-inflammatory pathways, as well as immunomodulatory functions. Here, we have extracted, purified and part-characterized the bioactivity of Jacalin, Frutalin, DAL and PNA, before evaluating their potential for wound healing in cultured human skin fibroblasts. Only Frutalin stimulated fibroblast migration in vitro, prompting further studies which established its low cytotoxicity and interaction with TLR4 receptors. Frutalin also increased p-ERK expression and stimulated IL-6 secretion. The in vivo potential of Frutalin for wound healing was then assessed in hybrid combination with the polysaccharide galactomannan, purified from Caesalpinia pulcherrima seeds, using both hydrogel and membrane scaffolds formulations. Physical-chemical characterization of the hybrid showed that lectin-galactomannan interactions increased the pseudoplastic behaviour of solutions, reducing viscosity and increasing Frutalin's concentration. Furthermore, infrared spectroscopy revealed -OH band displacement, likely caused by interaction of Frutalin with galactose residues present on galactomannan chains, while average membrane porosity was 100 μm, sufficient to ensure water vapor permeability. Accelerated angiogenesis and increased fibroblast and keratinocyte proliferation were observed with the optimal hybrid recovering the lesioned area after 11 days. Our findings indicate Frutalin as a biomolecule with potential for tissue repair, regeneration and chronic wound healing.
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Soares-Costa MAA, Costa JJN, Silva AWB, Cunha EV, Paulino LRFM, Silva BR, Silva ALC, van den Hurk R, Silva JRV. Effects of frutalin and doxorubicin on growth, ultrastructure and gene expression in goat secondary follicles cultured in vitro. Res Vet Sci 2018; 120:33-40. [PMID: 30195149 DOI: 10.1016/j.rvsc.2018.08.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2017] [Revised: 08/24/2018] [Accepted: 08/29/2018] [Indexed: 11/15/2022]
Abstract
This study evaluated the effects of frutalin (0.6, 6.0 or 60.0 μg/mL) and doxorubicin (0.3 μg/mL) on survival, growth and ultrastructure of in-vitro cultured goat secondary follicles. The effects of these substances on the levels of mRNA for Casp3, Casp6, Bax, and Bcl2 were also investigated. Results showed that, after 6 days of culture, frutalin or doxorubicin reduced the percentage of normal follicles (P < 0.05), but doxorubicin had higher toxicity than frutalin. Except for follicles cultured with 0.6 μg/mL frutalin, follicular growth rate was reduced after culture with doxorubicin or frutalin (P < 0.05). The presence doxorubicin or 60.0 μg/mL frutalin increased the levels of mRNA for Casp3, Casp6, Bax, and Bcl2 (P < 0.05). Higher mRNA levels for Casp3, Casp6 and Bax were found in follicles cultured with doxorubicin, but higher levels of Bcl2 mRNA were found in follicles cultured with frutalin (P < 0.05). In conclusion, frutalin has lower toxic effects than doxorubicin on secondary follicles cultured in vitro.
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Affiliation(s)
- M A A Soares-Costa
- Biotechnology Nucleus of Sobral (NUBIS), Federal University of Ceará, Sobral, Ceará, Brazil
| | - J J N Costa
- Biotechnology Nucleus of Sobral (NUBIS), Federal University of Ceará, Sobral, Ceará, Brazil
| | - A W B Silva
- Biotechnology Nucleus of Sobral (NUBIS), Federal University of Ceará, Sobral, Ceará, Brazil
| | - E V Cunha
- Biotechnology Nucleus of Sobral (NUBIS), Federal University of Ceará, Sobral, Ceará, Brazil
| | - L R F M Paulino
- Biotechnology Nucleus of Sobral (NUBIS), Federal University of Ceará, Sobral, Ceará, Brazil
| | - B R Silva
- Biotechnology Nucleus of Sobral (NUBIS), Federal University of Ceará, Sobral, Ceará, Brazil
| | - A L C Silva
- Molecular Biotechnology Laboratory (LabBMol), Federal University of Ceará, Fortaleza, Ceará, Brazil
| | - R van den Hurk
- Department of Pathobiology, Faculty of Veterinary Medicine, Utrecht University, Utrecht, the Netherlands
| | - J R V Silva
- Biotechnology Nucleus of Sobral (NUBIS), Federal University of Ceará, Sobral, Ceará, Brazil.
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6
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Dose-dependent effects of frutalin on in vitro maturation and fertilization of pig oocytes. Anim Reprod Sci 2018; 192:216-222. [DOI: 10.1016/j.anireprosci.2018.03.015] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2017] [Revised: 02/23/2018] [Accepted: 03/14/2018] [Indexed: 01/16/2023]
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7
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Frutalin reduces acute and neuropathic nociceptive behaviours in rodent models of orofacial pain. Chem Biol Interact 2016; 256:9-15. [DOI: 10.1016/j.cbi.2016.06.016] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2016] [Revised: 06/01/2016] [Accepted: 06/10/2016] [Indexed: 02/07/2023]
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Monteiro-Moreira ACDO, D’Muniz Pereira H, Vieira Neto AE, Mendes Batista Moreno FB, Duarte Pinto Lobo M, de Sousa FD, Moreira RDA. Crystallization and preliminary X-ray diffraction studies of frutalin, an α-D-galactose-specific lectin from Artocarpus incisa seeds. Acta Crystallogr F Struct Biol Commun 2015; 71:1282-5. [PMID: 26457519 PMCID: PMC4601592 DOI: 10.1107/s2053230x15015186] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2014] [Accepted: 08/14/2015] [Indexed: 11/11/2022] Open
Abstract
Frutalin is an α-D-galactose-specific carbohydrate-binding glycoprotein with antitumour properties and is a powerful tool for tumour biomarker discovery. The crystallization and preliminary X-ray diffraction analysis of this lectin, which was isolated from Artocarpus incisa seeds, are reported here. Frutalin was purified and submitted to mass-spectrometric analysis. Diverse masses at approximately 16 kDa were observed in the deconvoluted spectra, which support the presence of isoforms. The best frutalin crystals were grown within a week in 0.1 M citric acid pH 3.5 which contained 25% PEG 3350 as a precipitant at 293 K, and diffracted to a maximum resolution of 1.81 Å. The monoclinic crystals belonged to space group I2, with unit-cell parameters a = 76.17, b = 74.56, c = 118.98 Å, β = 96.56°. A molecular-replacement solution was obtained which indicated the presence of four monomers per asymmetric unit. Crystallographic refinement of the structure is in progress.
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Affiliation(s)
| | - Humberto D’Muniz Pereira
- Physics Institute of São Carlos, São Paulo University, Avenida Trabalhador São-carlense 400, Parque Arnold Schimidt, 13566-590 São Carlos-SP, Brazil
| | - Antonio Eufrasio Vieira Neto
- Center of Experimental Biology (Nubex), University of Fortaleza (UNIFOR), 60811-905 Fortaleza-CE, Brazil
- Department of Biochemistry and Molecular Biology, Federal University of Ceará (UFC), Campus do Pici, Bloco 907, 60451-970 Fortaleza-CE, Brazil
| | | | - Marina Duarte Pinto Lobo
- Center of Experimental Biology (Nubex), University of Fortaleza (UNIFOR), 60811-905 Fortaleza-CE, Brazil
- Department of Biochemistry and Molecular Biology, Federal University of Ceará (UFC), Campus do Pici, Bloco 907, 60451-970 Fortaleza-CE, Brazil
| | - Felipe Domingos de Sousa
- Center of Experimental Biology (Nubex), University of Fortaleza (UNIFOR), 60811-905 Fortaleza-CE, Brazil
- Department of Biochemistry and Molecular Biology, Federal University of Ceará (UFC), Campus do Pici, Bloco 907, 60451-970 Fortaleza-CE, Brazil
| | - Renato de Azevedo Moreira
- Department of Biochemistry and Molecular Biology, Federal University of Ceará (UFC), Campus do Pici, Bloco 907, 60451-970 Fortaleza-CE, Brazil
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Abdon APV, Vasconcelos RP, Castro CA, Guedes MM, Tomé ADR, Cardoso ALH, Santiago TDM, Rebêlo LM, Moreira RDA, Monteiro-Moreira ACDO, Campos AR. Ethanol-Induced Gastric Injury: Microscopic Analysis of the Protective Effect of Frutalin. Int J Pept Res Ther 2014. [DOI: 10.1007/s10989-014-9398-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Oliveira C, Teixeira JA, Domingues L. Recombinant production of plant lectins in microbial systems for biomedical application - the frutalin case study. FRONTIERS IN PLANT SCIENCE 2014; 5:390. [PMID: 25152749 PMCID: PMC4126444 DOI: 10.3389/fpls.2014.00390] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2014] [Accepted: 07/22/2014] [Indexed: 05/02/2023]
Abstract
Frutalin is a homotetrameric partly glycosylated α-D-galactose-binding lectin of biomedical interest from Artocarpus incisa (breadfruit) seeds, belonging to the jacalin-related lectins family. As other plant lectins, frutalin is a heterogeneous mixture of several isoforms possibly with distinct biological activities. The main problem of using such lectins as biomedical tools is that "batch-to-batch" variation in isoforms content may lead to inconstant results. The production of lectins by recombinant means has the advantage of obtaining high amounts of proteins with defined amino-acid sequences and more precise properties. In this mini review, we provide the strategies followed to produce two different forms of frutalin in two different microbial systems: Escherichia coli and Pichia pastoris. The processing and functional properties of the recombinant frutalin obtained from these hosts are compared to those of frutalin extracted from breadfruit. Emphasis is given particularly to recombinant frutalin produced in P. pastoris, which showed a remarkable capacity as biomarker of human prostate cancer and as apoptosis-inducer of cancer cells. Recombinant frutalin production opens perspectives for its development as a new tool in human medicine.
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Affiliation(s)
| | | | - Lucília Domingues
- *Correspondence: Lucília Domingues, Centre of Biological Engineering, University of Minho, Campus de Gualtar, 4710-057 Braga, Portugal e-mail:
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de Vasconcellos Abdon AP, Coelho de Souza G, Noronha Coelho de Souza L, Prado Vasconcelos R, Araújo Castro C, Moreira Guedes M, Pereira Lima Júnior RC, de Azevedo Moreira R, de Oliveira Monteiro-Moreira AC, Rolim Campos A. Gastroprotective potential of frutalin, a d-galactose binding lectin, against ethanol-induced gastric lesions. Fitoterapia 2012; 83:604-8. [DOI: 10.1016/j.fitote.2012.01.005] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2011] [Revised: 01/11/2012] [Accepted: 01/12/2012] [Indexed: 12/31/2022]
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Cytotoxic effects of native and recombinant frutalin, a plant galactose-binding lectin, on HeLa cervical cancer cells. J Biomed Biotechnol 2011; 2011:568932. [PMID: 22131813 PMCID: PMC3206378 DOI: 10.1155/2011/568932] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2011] [Revised: 08/17/2011] [Accepted: 08/17/2011] [Indexed: 02/07/2023] Open
Abstract
Frutalin is the α-D-galactose-binding lectin isolated from breadfruit seeds. Frutalin was obtained from two different sources: native frutalin was purified from its natural origin, and recombinant frutalin was produced and purified from Pichia pastoris. This work aimed to study and compare the effect of native and recombinant frutalin on HeLa cervical cancer cells proliferation and apoptosis. Furthermore, the interaction between frutalin and the HeLa cells was investigated by confocal microscopy. Despite having different carbohydrate-binding affinities, native and recombinant frutalin showed an identical magnitude of cytotoxicity on HeLa cells growth (IC₅₀~100 μg/mL) and equally induced cell apoptosis. The interaction studies showed that both lectins were rapidly internalised and targeted to HeLa cell's nucleus. Altogether, these results indicate that frutalin action is not dependent on its sugar-binding properties. This study provides important information about the bioactivity of frutalin and contributes to the understanding of the plant lectins cytotoxic activity.
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Nobre TM, Pavinatto FJ, Cominetti MR, Selistre de-Araújo HS, Zaniquelli ME, Beltramini LM. The specificity of frutalin lectin using biomembrane models. BIOCHIMICA ET BIOPHYSICA ACTA-BIOMEMBRANES 2010; 1798:1547-55. [DOI: 10.1016/j.bbamem.2010.03.021] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/14/2009] [Revised: 03/09/2010] [Accepted: 03/23/2010] [Indexed: 11/25/2022]
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14
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Oliveira C, Costa S, Teixeira JA, Domingues L. cDNA Cloning and Functional Expression of the α-d-Galactose-Binding Lectin Frutalin in Escherichia coli. Mol Biotechnol 2009; 43:212-20. [DOI: 10.1007/s12033-009-9191-7] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2009] [Accepted: 05/26/2009] [Indexed: 11/25/2022]
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Babosha AV. Inducible lectins and plant resistance to pathogens and abiotic stress. BIOCHEMISTRY (MOSCOW) 2008; 73:812-25. [PMID: 18707590 DOI: 10.1134/s0006297908070109] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Lectin concentration (activity) increases in plant tissues upon infection by pathogens, in response to abiotic stress, as well as during growth and development of tissues. Such a broad range of events accompanied by accumulation of lectins is indicative of their involvement in regulation of integral processes in plant cells. Data concerning the role of lectins in regulation of oxidative stress and stress-induced cytoskeleton rearrangements are presented.
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Affiliation(s)
- A V Babosha
- Tsitsin Main Botanical Garden, Russian Academy of Sciences, Moscow, 127276, Russia.
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16
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Dresch RR, Zanetti GD, Lerner CB, Mothes B, Trindade VMT, Henriques AT, Vozári-Hampe MM. ACL-I, a lectin from the marine sponge Axinella corrugata: isolation, characterization and chemotactic activity. Comp Biochem Physiol C Toxicol Pharmacol 2008; 148:23-30. [PMID: 18424185 DOI: 10.1016/j.cbpc.2008.03.003] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/07/2008] [Revised: 03/05/2008] [Accepted: 03/05/2008] [Indexed: 11/20/2022]
Abstract
The lectin from the marine sponge Axinella corrugata (ACL-I) was purified by affinity chromatography on rabbit erythrocytic stroma incorporated into a polyacrylamide gel followed by gel filtration on Ultrogel AcA 44 column. Purified ACL-I is a hexameric glycoprotein with a Mr of 82.3 kDa estimated by SDS-PAGE and 78.5 kDa by FPLC on Superose 12 HR column. The pI of lectin is 6.3 and ACL-I is constituted of 13.9 kDa similar subunits some of them linked by disulphide bridges. This lectin agglutinates native rabbit, goat and dog erythrocytes and in less extent human erythrocytes. The hemagglutinating activity is independent of Ca(2+), Mg(2+) and Mn(2+), but it is strongly inhibited by carbohydrates containing N-acetyl groups. ACL-I is stable up to 70 degrees C for 30 min, with optimum pH between 7 and 8, and it is also resistant to enzymatic proteolysis in vitro. In the presence of reducing or denaturant agents, the lectin activity decreases. ACL-I displays chemotactic effect on rat neutrophil in vitro which is inhibited by N-acetyl-d-glucosamine.
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Affiliation(s)
- Roger R Dresch
- Programa de Pós-Graduação em Ciências Farmacêuticas, Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
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Expression of frutalin, an alpha-D-galactose-binding jacalin-related lectin, in the yeast Pichia pastoris. Protein Expr Purif 2008; 60:188-93. [PMID: 18534865 DOI: 10.1016/j.pep.2008.04.008] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2008] [Revised: 04/07/2008] [Accepted: 04/14/2008] [Indexed: 11/22/2022]
Abstract
Frutalin is an alpha-D-galactose-binding lectin expressed in breadfruit seeds. Its isolation from plant is time-consuming and results in a heterogeneous mixture of different lectin isoforms. In order to improve and facilitate the availability of the breadfruit lectin, we cloned an optimised codifying frutalin mature sequence into the pPICZalphaA expression vector. This expression vector, designed for protein expression in the methylotrophic yeast Pichia pastoris, contains the Saccharomyces alpha-factor preprosequence to direct recombinant proteins into the secretory pathway. Soluble recombinant frutalin was detected in the culture supernatants and recognised by native frutalin antibody. Approximately 18-20 mg of recombinant lectin per litre medium was obtained from a typical small scale methanol-induced culture purified by size-exclusion chromatography. SDS-PAGE and Edman degradation analysis revealed that frutalin was expressed as a single chain protein since the four amino-acid linker peptide "T-S-S-N", which connects alpha and beta chains, was not cleaved. In addition, incomplete processing of the signal sequence resulted in recombinant frutalin with one Glu-Ala N-terminal repeat derived from the alpha-factor prosequence. Endoglycosidase treatment and SDS-PAGE analysis revealed that the recombinant frutalin was partly N-glycosylated. Further characterisation of the recombinant lectin revealed that it specifically binds to the monosaccharide Me-alpha-galactose presenting, nevertheless, lesser affinity than the native frutalin. Recombinant frutalin eluted from a size-exclusion chromatography column with a molecular mass of about 62-64 kDa, suggesting a tetrameric structure, however it did not agglutinate rabbit erythrocytes as native frutalin does. This work shows that the galactose-binding jacalin-related lectins four amino-acid linker peptide "T-S-S-N" does not undergo any proteolytic cleavage in the yeast P. pastoris and also that linker cleavage might not be essential for lectin sugar specificity.
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Alencar NMN, Assreuy AMS, Havt A, Benevides RG, de Moura TR, de Sousa RB, Ribeiro RA, Cunha FQ, Cavada BS. Vatairea macrocarpa (Leguminosae) lectin activates cultured macrophages to release chemotactic mediators. NAUNYN-SCHMIEDEBERG'S ARCHIVES OF PHARMACOLOGY 2006; 374:275-82. [PMID: 17171556 DOI: 10.1007/s00210-006-0124-8] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/08/2006] [Accepted: 11/16/2006] [Indexed: 10/23/2022]
Abstract
The lectin from the legume Vatairea macrocarpa is a galactose/N-acetylgalactosamine binding protein that induced cellular inflammatory response mediated by resident cells. This study investigated which inflammatory mediators would be released from lectin-activated cells. The intraperitoneal injection in rats of the supernatant from cultured macrophages, but not from mast cells, stimulated with lectin induced a time- and dose-dependent release of a neutrophil chemotactic factor, termed MNCF-VML. Pharmacological modulation with dexamethasone inhibited both the lectin-induced chemotactic activity in vivo and also the lectin-induced release of MNCF-VML into the supernatant of cultured macrophages. Cyclooxygenase and lipoxygenase metabolites are apparently not involved in the action of this factor or its release, since indomethacin or MK886 were unable to affect the lectin response. The molecular weight of MNCF-VML was found to be greater than 5 kDa, which led to the investigation of which cytokine(s) could be involved by the following approaches: (a) treatment of animals with antiserum to tumor necrosis factor alpha (TNF-alpha), interleukin (IL)-1, or IL-8 before intraperitoneal injection of lectin and (b) addition of antiserum to TNF-alpha, IL-1, or IL-8 to the supernatant of lectin-stimulated macrophages before intraperitoneal administration. Antiserum to TNF-alpha, but not IL-1 nor IL-8, inhibited the neutrophil migration induced either by lectin or MNCF-VML. Our data suggest that neutrophil migration induced by V. macrocarpa lectin occurs via the release of cytokines such as TNF-alpha by macrophages. Thus, this lectin may represent an important tool to better understand pathological situations where an excess of leukocytes at inflammatory sites causes tissue injury.
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Affiliation(s)
- Nylane M N Alencar
- Departamento de Fisiologia e Farmacologia, Universidade Federal do Ceará, Campus do Porangabuçu, Rua Coronel Nunes de Melo 1127, Fortaleza, Ceará, Brazil
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19
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Coelho MB, Desouza IA, Freire MGM, Marangoni S, Antunes E, Macedo MLR. Neutrophil migration in mice induced by a mannose-binding lectin isolated from Annona coriacea seeds. Toxicon 2006; 48:529-35. [PMID: 16926040 DOI: 10.1016/j.toxicon.2006.07.001] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2005] [Revised: 06/30/2006] [Accepted: 07/04/2006] [Indexed: 02/02/2023]
Abstract
A novel 14-kDa lectin from Annona coriacea seeds (ACLEC) with hemagglutinating activity on erythrocytes has been recently described. Since plant lectins are known to present inflammatory activity, this study aimed to investigate the leukocyte migration induced by ACLEC, and inflammatory mediators involved in this phenomenon. Male Swiss mice were intraperitoneally injected with ACLEC (3-100 microg/cavity), and at 4-96 h thereafter the leukocyte counts in peritoneal lavage fluid were evaluated. ACLEC induced a dose-dependent neutrophil accumulation, reaching maximal responses at 16 h after injection (approximately 40-fold increase for 30 microg/cavity). Significant accumulation of mononuclear cells was observed at 72 h (2.7-fold increase). The carbohydrate mannose nearly abolished the neutrophil influx, whereas sucrose, glucose and galactose had no effect. Dexamethasone, the cyclooxygenase-2 (COX-2) inhibitor celecoxib and the Platelet activating factor (PAF) receptor antagonist PCA4248 significantly reduced ACLEC-induced neutrophil influx. The tachykinin NK(1) antagonist SR140333, the tachykinin NK(2) antagonist SR48968, the non-selective NO inhibitor L-NAME, the selective inducible NOS inhibitor aminoguanidine and the lypoxygenase inhibitor AA861 all failed to modify the ACLEC-induced responses. In conclusion, ACLEC is able to attract neutrophils into the mice peritoneal cavity by mechanisms involving interactions of the lectin with cell-specific mannose recognition, leading to the release of COX-2-derived mediators and PAF.
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Affiliation(s)
- Mirela B Coelho
- Departamento de Bioquímica, Instituto de Biologia (IB), Universidade Estadual de Campinas (UNICAMP), P.O. Box 6109, 13083-970 Campinas (SP), Brazil.
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Brando-Lima AC, Saldanha-Gama RF, Pereira CR, Villela CG, Sampaio ALF, Monteiro-Moreira ACO, Henriques MDGMO, Moreira RA, Barja-Fidalgo C. Involvement of phosphatidylinositol-3 kinase–Akt and nuclear factor kappa-B pathways in the effect of frutalin on human lymphocyte. Int Immunopharmacol 2006; 6:465-72. [PMID: 16428082 DOI: 10.1016/j.intimp.2005.09.008] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2004] [Revised: 01/09/2005] [Accepted: 09/15/2005] [Indexed: 12/22/2022]
Abstract
The mechanisms involved in the mitogenic effect of lectins are not fully understood and are thought to involve a cascade of intracellular signals related to T cell receptor activation. This study shows that frutalin, the alpha-D-galactose-binding lectin from Artocarpus incisa seeds, is a potent mitogenic activator of human lymphocytes. This effect is inhibited by D-galactose and PI3K inhibitors, and is accompanied by an increase in IL-2 receptor expression and by a PI3K-dependent IL-2 gene expression and IL-2 protein synthesis. Frutalin also induces Akt-phosphorylation and activates NF-kappaB, inducing its translocation from the cytosol to the nucleus. Both effects are blocked in the presence of D-galactose or by PI3K inhibitors. In summary, frutalin, interacting with alpha-D-galactose, activates signaling pathways related to TCR, and thereby triggers PI3K/Akt and NF-kappaB pathway, which modulates T cell proliferation, IL-2 synthesis and IL-2R expression. Frutalin might be a useful tool to study intracellular mechanisms following T cell activation that link upstream signaling pathways to downstream events.
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Affiliation(s)
- Aline C Brando-Lima
- Departamento de Farmacologia, Instituto de Biologia, Universidade do Estado do Rio de Janeiro, Av. 28 de setembro 87 fds, Vila Isabel, Rio de Janeiro, 20551-030, RJ, Brazil
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