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Sá GCDS, da Silva LB, Bezerra PVV, da Silva MAF, Inacio CLS, Paiva WDS, e Silva VPM, Cordeiro LV, Oliveira JWDF, Silva MS, Lima EDO, Moreira FJC, Rocha HADO, Barra PB, Ximenes MDFFDM, Uchôa AF. Tephrosia toxicaria (Sw.) Pers. extracts: Screening by examining aedicidal action under laboratory and field conditions along with its antioxidant, antileishmanial, and antimicrobial activities. PLoS One 2023; 18:e0275835. [PMID: 36630475 PMCID: PMC9833590 DOI: 10.1371/journal.pone.0275835] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2022] [Accepted: 09/24/2022] [Indexed: 01/12/2023] Open
Abstract
An increase in the incidence of arboviral, microbial and parasitic infections, and to disorders related to oxidative stress has encouraged the development of adjuvant therapies based on natural formulations, such as those involving plant extracts. Thus, to expand the repertoire of the available therapeutic options, this study aimed to describe the versatility of Tephrosia toxicaria (Sw.) (Pers., 1807) extracts for the control of arbovirus vectors, as well as their antioxidant, antileishmanial, and antimicrobial potential. Among the aqueous and hydroethanolic extracts obtained, the hydroethanolic extract from roots (RHA) was identified as the most active larvicide extract demonstrating, respectively, the lowest lethal concentration (mg/mL) for 50%, 90% and 99% of Aedes aegypti (L., 1762) and Aedes albopictus (S., 1894) larvae, observed at 24 h (0.33, 0.84 and 1.80; 0.32, 0.70 and 1.32) and 48 h (0.17, 0.51 and 1.22; 0.26, 0.47 and 0.78) post-exposure. Field assays revealed that RHA (0.84 mg/mL) is a potential oviposition deterrent, reducing egg-laying by approximately 90%. RHA (0.1 mg/mL) also exhibited antioxidant activity for the following tests: total antioxidant capacity (286.86 mg AAE/g), iron (87.16%) and copper (25.64%) chelation, and superoxide scavenging (10%). In the cell culture assays, RHA (0.1 mg/mL) promoted regeneration of metabolic activity (92% cell viability) in cells exposed to oxidative stress. Furthermore, RHA displayed weak antileishmanial activity (IC50 = 3.53 mg/mL) against Leishmania amazonensis and not exhibit antimicrobial activity. The extraction favored the concentration of carbohydrates in RHA, in addition to lectins and protease inhibitors, with molecular masses estimated between 10 and 24 kDa. Cytotoxicity and phytotoxicity analyses of RHA suggested its biosecurity. Thus, RHA is a multivalent extract with insecticide and antioxidant properties at low and safe concentrations. However, others studies on its indirect toxic effects are ongoing to ensure the complete safety of RHA.
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Affiliation(s)
- Giulian César da Silva Sá
- Department of Cellular Biology and Genetics, Universidade Federal do Rio Grande do Norte, Natal, Rio Grande do Norte, Brazil
- Instituto de Medicina Tropical do Rio Grande do Norte, Natal, Rio Grande do Norte, Brazil
| | - Leidiane Barboza da Silva
- Department of Cellular Biology and Genetics, Universidade Federal do Rio Grande do Norte, Natal, Rio Grande do Norte, Brazil
- Instituto de Medicina Tropical do Rio Grande do Norte, Natal, Rio Grande do Norte, Brazil
| | - Pedro Vitor Vale Bezerra
- Department of Cellular Biology and Genetics, Universidade Federal do Rio Grande do Norte, Natal, Rio Grande do Norte, Brazil
- Instituto de Medicina Tropical do Rio Grande do Norte, Natal, Rio Grande do Norte, Brazil
| | - Melissa Alves Farias da Silva
- Department of Cellular Biology and Genetics, Universidade Federal do Rio Grande do Norte, Natal, Rio Grande do Norte, Brazil
- Instituto de Medicina Tropical do Rio Grande do Norte, Natal, Rio Grande do Norte, Brazil
| | - Cássio Lázaro Silva Inacio
- Department of Microbiology and Parasitology, Laboratory of Entomology Research, Universidade Federal do Rio Grande do Norte, Natal, Rio Grande do Norte, Brazil
| | - Weslley de Souza Paiva
- Department of Biochemistry, Laboratory of Biotechnology of Natural Polymer, Universidade Federal do Rio Grande do Norte, Natal, Rio Grande do Norte, Brazil
| | - Virgínia Penéllope Macedo e Silva
- Department of Microbiology and Parasitology, Laboratory of Entomology Research, Universidade Federal do Rio Grande do Norte, Natal, Rio Grande do Norte, Brazil
| | - Laísa Vilar Cordeiro
- Department of Pharmaceutical Sciences, Laboratory of Mycology, Universidade Federal da Paraiba, João Pessoa, Paraiba, Brazil
| | - Johny Wysllas de Freitas Oliveira
- Department of Clinical and Toxicological Analysis, Laboratory of Immunoparasitology, Universidade Federal do Rio Grande do Norte, Natal, RN, Brazil
| | - Marcelo Sousa Silva
- Department of Clinical and Toxicological Analysis, Laboratory of Immunoparasitology, Universidade Federal do Rio Grande do Norte, Natal, RN, Brazil
| | - Edeltrudes de Oliveira Lima
- Department of Pharmaceutical Sciences, Laboratory of Mycology, Universidade Federal da Paraiba, João Pessoa, Paraiba, Brazil
| | | | - Hugo Alexandre de Oliveira Rocha
- Department of Biochemistry, Laboratory of Biotechnology of Natural Polymer, Universidade Federal do Rio Grande do Norte, Natal, Rio Grande do Norte, Brazil
| | - Patricia Batista Barra
- Department of Biomedical Sciences, Universidade do Estado do Rio Grande do Norte, Mossoró, Rio Grande do Norte, Brazil
| | - Maria de Fátima Freire de Melo Ximenes
- Department of Microbiology and Parasitology, Laboratory of Entomology Research, Universidade Federal do Rio Grande do Norte, Natal, Rio Grande do Norte, Brazil
| | - Adriana Ferreira Uchôa
- Department of Cellular Biology and Genetics, Universidade Federal do Rio Grande do Norte, Natal, Rio Grande do Norte, Brazil
- Instituto de Medicina Tropical do Rio Grande do Norte, Natal, Rio Grande do Norte, Brazil
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França AFJ, Araújo JN, Santos YQ, Carelli GSC, Silva DA, Amorim TML, Migliolo L, Santos EA, Oliveira AS, Uchôa AF. Vicilin from Anadenanthera colubrina Seeds: An alternative tool to combat Callosobruchus maculatus. Saudi J Biol Sci 2021; 28:5229-5237. [PMID: 34466101 PMCID: PMC8381016 DOI: 10.1016/j.sjbs.2021.05.041] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2021] [Revised: 05/15/2021] [Accepted: 05/18/2021] [Indexed: 11/03/2022] Open
Abstract
Vicilins are seed proteins, and they constitute 70-80% of the total protein in leguminous seeds; with amolecular mass between 150 and 190 kDa, they are composed of subunits without disulfide bridges, with high affinity for chitin-binding. They are also associated with seed defense against insect pests. The chitin-binding vicilin from Anadenanthera colubrina seeds was purified by ammonium sulfate, followed by affinity chromatography on a chitin column, molecular exclusion on Superdex 75 Tricorn in FPLC system and Phenomenex C8 chromatography in HPLC system. The A. colubrina vicilin, named AcV, is a tetrameric glycoprotein composed of 1.55% carbohydrates and molecular weight determined by SDS-PAGE, consisting of 70, 73, 43 and 41 kDa. The AcV homogeneity was confirmed in native PAGE, where it was observed to be a unique band with slow mobility in this gel, with approximately 230 kDa. AcV added to the Callosobruchus maculatus diet in the bioassays resulted in a strong effect on adult emergence (ED50 of 0.096%), and in larvae caused a marked reduction in mass (WD50 of 0.32%) and lethality (LD50 of 0.33%) (w:w). The digestibility of AcV was evaluated in vitro with the digestive enzymes of larvae of C. maculatus of fourth instar, showing major fragments of 10 and 30 kDa. AcV showed reactivity against the anti-EvV antibody from Erythrina velutina vicilin. The deleterious effects of AcV are likely to be associated with the chitin-binding fragments generated by proteolysis in the bruchid gut, similarly to that found for vicilins from other leguminous plant species, Enterolobium contortisiliquum and Vigna unguiculata. AcV might be a candidate protein for a possible bioinsecticidal control of the bruchid weevil, C. maculatus.
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Affiliation(s)
- A F J França
- Laboratório de Química e Função de Proteínas Bioativas - LQFPB, Departamento de Bioquímica, Universidade Federal do Rio Grande do Norte, Natal, RN, Brazil.,Escola Multicampi de Ciências Médicas - EMCM, Universidade Federal do Rio Grande do Norte, Caicó, RN, Brazil
| | - J N Araújo
- Laboratório de Química e Função de Proteínas Bioativas - LQFPB, Departamento de Bioquímica, Universidade Federal do Rio Grande do Norte, Natal, RN, Brazil
| | - Y Q Santos
- Laboratório de Química e Função de Proteínas Bioativas - LQFPB, Departamento de Bioquímica, Universidade Federal do Rio Grande do Norte, Natal, RN, Brazil.,Instituto Federal do Ceará, Campus Limoeiro do Norte, Limoeiro do Norte, CE, Brazil
| | - G S C Carelli
- Laboratório de Química e Função de Proteínas Bioativas - LQFPB, Departamento de Bioquímica, Universidade Federal do Rio Grande do Norte, Natal, RN, Brazil
| | - D A Silva
- Laboratório de Produtos Naturais - LPN, Centro de Ciências da Saúde e Desporto, Universidade Federal do Acre, Rio Branco, AC, Brazil
| | - T M L Amorim
- Curso de Bacharelado em Medicina - Núcleo de Pesquisa em Ciências Médicas/NPCMed, Universidade Federal do Piauí, Picos, PI, Brazil
| | - L Migliolo
- Laboratório de Química e Função de Proteínas Bioativas - LQFPB, Departamento de Bioquímica, Universidade Federal do Rio Grande do Norte, Natal, RN, Brazil.,Laboratório S-Inova Biotech, Pós-Graduação em Biotecnologia, Universidade Católica Dom Bosco, Brazil
| | - E A Santos
- Laboratório de Química e Função de Proteínas Bioativas - LQFPB, Departamento de Bioquímica, Universidade Federal do Rio Grande do Norte, Natal, RN, Brazil
| | - A S Oliveira
- Laboratório de Química e Função de Proteínas Bioativas - LQFPB, Departamento de Bioquímica, Universidade Federal do Rio Grande do Norte, Natal, RN, Brazil
| | - A F Uchôa
- Laboratório de Química e Função de Proteínas Bioativas - LQFPB, Departamento de Bioquímica, Universidade Federal do Rio Grande do Norte, Natal, RN, Brazil.,Laboratório de Proteomas - Instituto de Medicina Tropical do RN, Universidade Federal do Rio Grande do Norte, Brazil
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Costa RODA, Matias LLR, Passos TS, de Queiroz JLC, de Carvalho FMC, Maciel BLL, Uchôa AF, Amado IR, Gonçalves C, Pastrana L, Morais AHA. Safety and potential functionality of nanoparticles loaded with a trypsin inhibitor isolated from tamarind seeds. Future Foods 2020. [DOI: 10.1016/j.fufo.2020.100001] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
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Medeiros AFD, Costa IDS, Carvalho FMCD, Kiyota S, Souza BBPD, Sifuentes DN, Serquiz RP, Maciel BLL, Uchôa AF, Santos EAD, Morais AHDA. Biochemical characterisation of a Kunitz-type inhibitor from Tamarindus indica L. seeds and its efficacy in reducing plasma leptin in an experimental model of obesity. J Enzyme Inhib Med Chem 2018; 33:334-348. [PMID: 29322840 PMCID: PMC6010142 DOI: 10.1080/14756366.2017.1419220] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
A trypsin inhibitor isolated from tamarind seed (TTI) has satietogenic effects in animals, increasing the cholecystokinin (CCK) in eutrophy and reducing leptin in obesity. We purified TTI (pTTI), characterised, and observed its effect upon CCK and leptin in obese Wistar rats. By HPLC, and after amplification of resolution, two protein fractions were observed: Fr1 and Fr2, with average mass of [M + 14H]+ = 19,594,690 Da and [M + 13H]+ = 19,578,266 Da, respectively. The protein fractions showed 54 and 53 amino acid residues with the same sequence. pTTI presented resistance to temperature and pH variations; IC50 was 2.7 × 10−10 mol.L−1 and Ki was 2.9 × 10−11 mol.L−1. The 2-DE revealed spots with isoelectric points between pH 5 and 6, and one near pH 8. pTTI action on leptin decrease was confirmed. We conclude that pTTI is a Kunitz trypsin inhibitor with possible biotechnological health-related application.
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Affiliation(s)
- Amanda Fernandes de Medeiros
- a Postgraduate Biochemistry Program, Biosciences Center , Federal University of Rio Grande do Norte , Natal , Brazil
| | - Izael de Sousa Costa
- a Postgraduate Biochemistry Program, Biosciences Center , Federal University of Rio Grande do Norte , Natal , Brazil
| | | | - Sumika Kiyota
- b Laboratory of Protein and Peptide Biochemistry , CPDSA, Biological Institute , São Paulo , Brazil
| | - Beatriz Blenda Pinheiro de Souza
- c Postgraduate Biological Molecular, Institute of Biological Sciences , University of Brasília , Distrito Federal , Brasília , Brazil.,d Embrapa Genetic Resources and Biotechnology , Embrapa , Distrito Federal , Brasília , Brazil
| | | | - Raphael Paschoal Serquiz
- a Postgraduate Biochemistry Program, Biosciences Center , Federal University of Rio Grande do Norte , Natal , Brazil
| | - Bruna Leal Lima Maciel
- e Postgraduate Nutrition Program, Center for Health Sciences , Federal University of Rio Grande do Norte , Natal , Brazil.,f Department of Nutrition, Center for Health Sciences , Federal University of Rio Grande do Norte , Natal , Brazil
| | - Adriana Ferreira Uchôa
- a Postgraduate Biochemistry Program, Biosciences Center , Federal University of Rio Grande do Norte , Natal , Brazil.,g Department of Cell Biology and Genetics, Biosciences Center , Federal University of Rio Grande do Norte , Natal , Brazil
| | - Elizeu Antunes Dos Santos
- a Postgraduate Biochemistry Program, Biosciences Center , Federal University of Rio Grande do Norte , Natal , Brazil.,h Department of Biochemistry, Biosciences Center , Federal University of Rio Grande do Norte , Natal , Brazil
| | - Ana Heloneida de Araújo Morais
- a Postgraduate Biochemistry Program, Biosciences Center , Federal University of Rio Grande do Norte , Natal , Brazil.,e Postgraduate Nutrition Program, Center for Health Sciences , Federal University of Rio Grande do Norte , Natal , Brazil.,f Department of Nutrition, Center for Health Sciences , Federal University of Rio Grande do Norte , Natal , Brazil
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Monteiro Júnior JE, Valadares NF, Pereira HD, Dyszy FH, da Costa Filho AJ, Uchôa AF, de Oliveira AS, da Silveira Carvalho CP, Grangeiro TB. Expression in Escherichia coli of cysteine protease inhibitors from cowpea (Vigna unguiculata): The crystal structure of a single-domain cystatin gives insights on its thermal and pH stability. Int J Biol Macromol 2017; 102:29-41. [DOI: 10.1016/j.ijbiomac.2017.04.008] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2016] [Revised: 03/26/2017] [Accepted: 04/03/2017] [Indexed: 10/19/2022]
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Oliveira de Lima VC, de Araújo Machado RJ, Vieira Monteiro NK, de Lyra IL, da Silva Camillo C, Coelho Serquiz A, Silva de Oliveira A, da Silva Rufino FP, Leal Lima Maciel B, Ferreira Uchôa A, Antunes dos Santos E, de Araújo Morais AH. Gastroprotective and antielastase effects of protein inhibitors from Erythrina velutina seeds in an experimental ulcer model. Biochem Cell Biol 2017; 95:243-250. [DOI: 10.1139/bcb-2016-0034] [Citation(s) in RCA: 10] [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] [Indexed: 11/22/2022] Open
Abstract
Trypsin and chymotrypsin inhibitors from Erythrina velutina seeds have been previously isolated by our group. In previous studies using a sepsis model, we demonstrated the antitumor and anti-inflammatory action of these compounds. This study aimed to evaluate the gastroprotective and antielastase effects of protein inhibitors from E. velutina seeds in an experimental stress-induced ulcer model. Two protein isolates from E. velutina seeds, with antitrypsin (PIAT) and antichymotrypsin (PIAQ) activities, were tested. Both protein isolates showed a high affinity and inhibitory effect against human neutrophil elastase, with 84% and 85% inhibition, respectively. Gastric ulcer was induced using ethanol (99%) in 6 groups of animals (female Wistar rats, n = 6). Before ulcer induction, these animals were treated for 5 days with one of the following: (1) PIAT (0.2 mg·kg−1), (2) PIAT (0.4 mg·kg−1), (3) PIAQ (0.035 mg·kg−1), (4) ranitidine hydrochloride (50 mg·kg−1), (5) saline solution (0.9%), or (6) no intervention (sham). Both PIAT and PIAQ protected gastric mucosa, preventing hemorrhagic lesions, edema, and mucus loss. No histologic toxic effects of PIAT or PIAQ were seen in liver and pancreatic cells. Our results show that protein isolates from E. velutina seeds have potential gastroprotective effects, placing these compounds as natural candidates for gastric ulcer prevention.
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Affiliation(s)
| | | | | | - Ibson Lucas de Lyra
- Biochemistry Department, Biosciences Center, Federal University of Rio Grande do Norte, 59078-970 Natal, RN, Brazil
| | - Christina da Silva Camillo
- Morphology Department, Biosciences Center, Federal University of Rio Grande do Norte, 59078-970 Natal, RN, Brazil
| | - Alexandre Coelho Serquiz
- Biochemistry Department, Biosciences Center, Federal University of Rio Grande do Norte, 59078-970 Natal, RN, Brazil
| | - Adeliana Silva de Oliveira
- Biochemistry Department, Biosciences Center, Federal University of Rio Grande do Norte, 59078-970 Natal, RN, Brazil
| | | | - Bruna Leal Lima Maciel
- Nutrition Department Center for Health Sciences, Federal University of Rio Grande do Norte, 59078-970 Natal, RN, Brazil
| | - Adriana Ferreira Uchôa
- Molecular Biology and Genetics Department, Center for Health Sciences, Federal University of Rio Grande do Norte, 59078-970 Natal, RN, Brazil
| | - Elizeu Antunes dos Santos
- Biochemistry Department, Biosciences Center, Federal University of Rio Grande do Norte, 59078-970 Natal, RN, Brazil
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Ribeiro JADNC, Serquiz AC, Silva PFDS, Barbosa PBBM, Sampaio TBM, Araújo Junior RFD, Oliveira ASD, Machado RJA, Maciel BLL, Uchôa AF, Santos EAD, Morais AHDA. Trypsin inhibitor from tamarindus indica L. seeds reduces weight gain and food consumption and increases plasmatic cholecystokinin levels. Clinics (Sao Paulo) 2015; 70:136-43. [PMID: 25789523 PMCID: PMC4351314 DOI: 10.6061/clinics/2015(02)11] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/29/2014] [Accepted: 11/19/2014] [Indexed: 11/18/2022] Open
Abstract
OBJECTIVES Seeds are excellent sources of proteinase inhibitors, some of which may have satietogenic and slimming actions. We evaluated the effect of a trypsin inhibitor from Tamarindus indica L. seeds on weight gain, food consumption and cholecystokinin levels in Wistar rats. METHODS A trypsin inhibitor from Tamarindus was isolated using ammonium sulfate (30-60%) following precipitation with acetone and was further isolated with Trypsin-Sepharose affinity chromatography. Analyses were conducted to assess the in vivo digestibility, food intake, body weight evolution and cholecystokinin levels in Wistar rats. Histological analyses of organs and biochemical analyses of sera were performed. RESULTS The trypsin inhibitor from Tamarindus reduced food consumption, thereby reducing weight gain. The in vivo true digestibility was not significantly different between the control and Tamarindus trypsin inhibitor-treated groups. The trypsin inhibitor from Tamarindus did not cause alterations in biochemical parameters or liver, stomach, intestine or pancreas histology. Rats treated with the trypsin inhibitor showed significantly elevated cholecystokinin levels compared with animals receiving casein or water. CONCLUSION The results indicate that the isolated trypsin inhibitor from Tamarindus reduces weight gain by reducing food consumption, an effect that may be mediated by increased cholecystokinin. Thus, the potential use of this trypsin inhibitor in obesity prevention and/or treatment should be evaluated.
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Affiliation(s)
| | - Alexandre Coellho Serquiz
- Department of Biochemistry, Biosciences Center, Federal University of Rio Grande do Norte, Natal, RN, Brazil
| | - Priscila Fabíola dos Santos Silva
- Department of Nutrition, Rio Grande do Norte, Center for Health Sciences, Federal University of Rio Grande do Norte, RN;Natal, Brazil
| | | | | | | | - Adeliana Silva de Oliveira
- Department of Biochemistry, Biosciences Center, Federal University of Rio Grande do Norte, Natal, RN, Brazil
| | | | - Bruna Leal Lima Maciel
- Department of Nutrition, Rio Grande do Norte, Center for Health Sciences, Federal University of Rio Grande do Norte, RN;Natal, Brazil
| | - Adriana Ferreira Uchôa
- Department of Cell Biology and Genetics, Center for Biosciences, Federal University of Rio Grande do Norte, RN;Natal, Brazil
| | - Elizeu Antunes dos Santos
- Department of Biochemistry, Biosciences Center, Federal University of Rio Grande do Norte, Natal, RN, Brazil
| | - Ana Heloneida de Araújo Morais
- Department of Nutrition, Rio Grande do Norte, Center for Health Sciences, Federal University of Rio Grande do Norte, RN;Natal, Brazil
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Araújo JMD, Alves JC, Peixoto TKODN, Medeiros AFD, Machado RJDA, Serquiz AC, Neves RAMD, Santos EAD, Uchôa AF, Morais AHDA. DETERMINATION OF ANTITRYPTIC ACTIVITY IN PROTEINS FROM PEANUT PRODUCTS ISOLATED BY AFFINITY CHROMATOGRAPHY. QUIM NOVA 2014. [DOI: 10.5935/0100-4042.20140254] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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Uchôa AF, de Miranda MRA, de Souza AJ, Gomes VM, Fernandes KVS, Lemos FJA, Oliveira AEA, Xavier-Filho J. Toxicity of hydrolyzed vicilins toward Callosobruchus maculatus and phytopathogenic fungi. J Agric Food Chem 2009; 57:8056-8061. [PMID: 19658384 DOI: 10.1021/jf900999m] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Studies have shown that vicilins (7S storage proteins) from seeds were able to bind to the surface of the Callosobruchus maculatus larval midgut and to the peritrophic matrices of the midguts of Diatraea saccharalis and Tenebrio molitor , inhibiting larval development. Vicilins were also shown to inhibit yeast growth and bind to yeast cells through the association with chitin-containing structures. The present work studies the association of peptides from vicilins of genotypes of Vigna unguiculata (susceptible and resistant to bruchid) with acetylated chitin and the toxicity of vicilin fragments and chitin-binding vicilin fragments to C. maculatus and phytopathogenic fungi. Hydrolysis of vicilins with alpha-chymotrypsin results in a complex mixture of fragments that were separated by chitin-affinity chromatography. Chitin-binding peptides from both genotypes were toxic to C. maculatus larvae, and alpha-chymotrypsin-hydrolyzed vicilins were deleterious to the above insect and to Fusarium oxysporum , Colletotrichum musae , and Saccharomyces cerevisiae fungi.
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Affiliation(s)
- Adriana Ferreira Uchôa
- Universidade Estadual do Norte Fluminense, UENF Parque California, Campos dos Goytacazes, RJ, Brazil
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Macedo LLP, Amorim TML, Uchôa AF, Oliveira AS, Ribeiro JKC, de Macedo FP, Santos EA, de Sales MP. Larvicidal effects of a chitin-binding vicilin from Erythrina velutina seeds on the mediterranean fruit fly Ceratitis capitata. J Agric Food Chem 2008; 56:802-808. [PMID: 18193829 DOI: 10.1021/jf072746n] [Citation(s) in RCA: 7] [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] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
Chitin-binding vicilin from Erythrina velutina seeds was purified by ammonium sulfate followed by affinity chromatography on a chitin column and gel filtration on Superose-6-10-300-GL. The Erythrina velutina vicilin, called EvV, is a tetrameric glycoprotein composed of 1.85% carbohydrates and M r of 216.6 kDa, consisting of two subunits of M r of 54.8 and two subunits of M r of 50.8 kDa. The EvV homogeneity was confirmed in native PAGE where it was observed to be a unique acid-protein band with slow mobility in this gel. Effect of EvV on C. capitata larvae was examined by bioassay and its mechanism of action was determined by immunodetection techniques and fluorescence localization in chitin structures that are present in C. capitata digestory system. EvV when added to diet caused strong effect on mortality (ED50 of 0.14%) and larval mass (WD50 of 0.12%). These deleterious effects were associated to the binding to chitin structures present in peritrophic membrane and to gut epithelial cells, and its low digestibility in C. capitata digestive tract. These results are the first demonstration of a proteinaceous bioinsecticide from plant origin effective against C. capitata larvae. EvV may be part of the pest management programs or an alternative in plant improvement program.
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Affiliation(s)
- Leonardo L P Macedo
- Departamento de Bioquímica, Centro de Biociências, Universidade Federal do Rio Grande do Norte, Natal, RN, 59072-970, Brazil
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Silva LB, Santos SSS, Azevedo CR, Cruz MAL, Venâncio TM, Cavalcante CP, Uchôa AF, Astolfi Filho S, Oliveira AEA, Fernandes KVS, Xavier-Filho J. The leaves of green plants as well as a cyanobacterium, a red alga, and fungi contain insulin-like antigens. Braz J Med Biol Res 2002; 35:297-303. [PMID: 11887207 DOI: 10.1590/s0100-879x2002000300004] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.0] [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: 12/24/2022] Open
Abstract
We report the detection of insulin-like antigens in a large range of species utilizing a modified ELISA plate assay and Western blotting. We tested the leaves or aerial parts of species of Rhodophyta (red alga), Bryophyta (mosses), Psilophyta (whisk ferns), Lycopodophyta (club mosses), Sphenopsida (horsetails), gymnosperms, and angiosperms, including monocots and dicots. We also studied species of fungi and a cyanobacterium, Spirulina maxima. The wide distribution of insulin-like antigens, which in some cases present the same electrophoretic mobility as bovine insulin, together with results recently published by us on the amino acid sequence of an insulin isolated from the seed coat of jack bean (Canavalia ensiformis) and from the developing fruits of cowpea (Vigna unguiculata), suggests that pathways depending on this hormone have been conserved through evolution.
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Affiliation(s)
- L B Silva
- Laboratório de Química e Função de Proteínas e Peptídeos, Centro de Biociências e Biotecnologia, Universidade Estadual do Norte Fluminense, Campos dos Goytacazes, RJ, Brasil
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Aragão TC, Souza PA, Uchôa AF, Costa IR, Bloch C, Campos FA. Characterization of a methionine-rich protein from the seeds of Cereus jamacaru mill. (Cactaceae). Braz J Med Biol Res 2000; 33:897-903. [PMID: 10920431 DOI: 10.1590/s0100-879x2000000800005] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [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: 11/21/2022] Open
Abstract
We describe here the isolation and characterization of a major albumin from the seeds of Cereus jamacaru (Cactaceae), to which we gave the trivial name of cactin. This protein has a molecular mass of 11.3 kDa and is formed by a light chain (3.67 kDa) and a heavy chain (7.63 kDa). This protein was isolated using a combination of gel filtration chromatography and reverse-phase HPLC. The amino acid composition of cactin was determined and found to resemble that of the 2S seed reserve protein from the Brazil nut, a protein remarkable for its high methionine content. The usefulness of cactin as a molecular marker in the taxonomy of the Cactaceae is discussed.
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Affiliation(s)
- T C Aragão
- Departamento de Biologia, Universidade Estadual do Ceará, Fortaleza, CE, Brasil
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