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Simões-Silva R, Alfonso JJ, Gómez AF, Sobrinho JC, Kayano AM, de Medeiros DSS, Teles CBG, Quintero A, Fuly AL, Gómez CV, Pereira SS, da Silva SL, Stábeli RG, Soares AM. Synergism of in vitro plasmodicidal activity of phospholipase A2 isoforms isolated from panamanian Bothrops asper venom. Chem Biol Interact 2021; 346:109581. [PMID: 34302801 DOI: 10.1016/j.cbi.2021.109581] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2021] [Revised: 06/11/2021] [Accepted: 07/16/2021] [Indexed: 10/20/2022]
Abstract
Bothrops asper is one of the most important snake species in Central America, mainly because of its medical importance in countries like Ecuador, Panama and Costa Rica, where this species causes a high number of snakebite accidents. Several basic phospholipases A2 (PLA2s) have been previously characterized from B. asper venom, but few studies have been carried out with its acidic isoforms. In addition, since snake venom is a rich source of bioactive substances, it is necessary to investigate the biotechnological potential of its components. In this context, this study aimed to carry out the biochemical characterization of PLA2 isoforms isolated from B. asper venom and to evaluate the antiparasitic potential of these toxins. The venom and key fractions were subjected to different chromatographic steps, obtaining nine PLA2s, four acidic ones (BaspAc-I, BaspAc-II, BaspAc-III and BaspAc-IV) and five basic ones (BaspB-I, BaspB-II, BaspB-III, BaspB-IV and BaspB-V). The isoelectric points of the acidic PLA2s were also determined, which presented values ranging between 4.5 and 5. The findings indicated the isolation of five unpublished isoforms, four Asp49-PLA, corresponding to the group of acidic isoforms, and one Lys49-PLA2-like. Acidic PLA2s catalyzed the degradation of all substrates evaluated; however, for the basic PLA2s, there was a preference for phosphatidylglycerol and phosphatidic acid. The antiparasitic potential of the toxins was evaluated, and the acidic PLA2s demonstrated action against the epimastigote forms of T. cruzi and promastigote forms of L. infantum, while the basic PLA2s BaspB-II and BaspB-IV showed activity against P. falciparum. The results indicated an increase of up to 10 times in antiplasmodial activity, when the Asp49-PLA2 and Lys49-PLA2 were associated with one another, denoting synergistic action between these PLA2 isoforms. These findings correspond to the first report of synergistic antiplasmodial action for svPLA2s, demonstrating that these molecules may be important targets in the search for new antiparasitic agents.
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Affiliation(s)
- Rodrigo Simões-Silva
- Centro de Estudos de Biomoléculas Aplicadas à Saúde, CEBio, Laboratório de Biotecnologia de Proteínas e Compostos Bioativos da Amazônia Ocidental, LaBioProt, Fundação Oswaldo Cruz, FIOCRUZ, Unidade Rondônia, Porto Velho, RO, Brazil; Instituto Federal de Educação, Ciência e Tecnologia de Rondônia, IFRO, Campus Vilhena, Vilhena, RO, Brazil
| | - Jorge Javier Alfonso
- Centro de Estudos de Biomoléculas Aplicadas à Saúde, CEBio, Laboratório de Biotecnologia de Proteínas e Compostos Bioativos da Amazônia Ocidental, LaBioProt, Fundação Oswaldo Cruz, FIOCRUZ, Unidade Rondônia, Porto Velho, RO, Brazil; Centro Para el Desarrollo de la Investigación Científica (CEDIC), Asunción, Paraguay
| | - Ana F Gómez
- Centro de Estudos de Biomoléculas Aplicadas à Saúde, CEBio, Laboratório de Biotecnologia de Proteínas e Compostos Bioativos da Amazônia Ocidental, LaBioProt, Fundação Oswaldo Cruz, FIOCRUZ, Unidade Rondônia, Porto Velho, RO, Brazil; Centro Para el Desarrollo de la Investigación Científica (CEDIC), Asunción, Paraguay
| | - Juliana C Sobrinho
- Centro de Estudos de Biomoléculas Aplicadas à Saúde, CEBio, Laboratório de Biotecnologia de Proteínas e Compostos Bioativos da Amazônia Ocidental, LaBioProt, Fundação Oswaldo Cruz, FIOCRUZ, Unidade Rondônia, Porto Velho, RO, Brazil
| | - Anderson M Kayano
- Centro de Estudos de Biomoléculas Aplicadas à Saúde, CEBio, Laboratório de Biotecnologia de Proteínas e Compostos Bioativos da Amazônia Ocidental, LaBioProt, Fundação Oswaldo Cruz, FIOCRUZ, Unidade Rondônia, Porto Velho, RO, Brazil; Centro de Pesquisa em Medicina Tropical, CEPEM-SESAU/RO, Porto Velho, RO, Brazil
| | - Daniel S S de Medeiros
- Plataforma de Bioensaios em Malária e Leishmanioses, Fundação Oswaldo Cruz, FIOCRUZ, Unidade Rondônia, Porto Velho, RO, Brazil; Programa de Pós-graduação em Biologia Experimental, Universidade Federal de Rondônia, Porto Velho, RO, Brazil
| | - Carolina B G Teles
- Plataforma de Bioensaios em Malária e Leishmanioses, Fundação Oswaldo Cruz, FIOCRUZ, Unidade Rondônia, Porto Velho, RO, Brazil; Programa de Pós-graduação em Biologia Experimental, Universidade Federal de Rondônia, Porto Velho, RO, Brazil; Instituto Nacional de Ciência e Tecnologia em Epidemiologia da Amazônia Ocidental (INCT-EpiAmO), Brazil
| | - Aristides Quintero
- Centro de Informaciones e Investigaciones Toxicológicas y Químicas Aplicadas (CEIITOXQUIA) and Departamento de Química, FCNYE, Universidad Autónoma de Chiriquí, UNACHI, David, Panama
| | - André L Fuly
- Universidade Federal Fluminense, UFF, Niteroi, RJ, Brazil
| | - Celeste Vega Gómez
- Centro Para el Desarrollo de la Investigación Científica (CEDIC), Asunción, Paraguay
| | - Soraya S Pereira
- Laboratório de Engenharia de Anticorpos, Fundação Oswaldo Cruz, FIOCRUZ, Fiocruz Rondônia, Porto Velho, RO, Brazil
| | - Saulo L da Silva
- Faculty of Chemical Sciences, University of Cuenca, Cuenca, Azuay, Ecuador; LAQV-REQUIMTE, Department of Chemistry and Biochemistry, Faculty of Sciences, University of Porto, Rua do Campo Alegre s/n, Porto, Portugal
| | - Rodrigo G Stábeli
- Fundação Oswaldo Cruz, FIOCRUZ, Plataforma Bi-institucional de Medicina Translacional. Ribeirão Preto, SP, Brazil
| | - Andreimar M Soares
- Centro de Estudos de Biomoléculas Aplicadas à Saúde, CEBio, Laboratório de Biotecnologia de Proteínas e Compostos Bioativos da Amazônia Ocidental, LaBioProt, Fundação Oswaldo Cruz, FIOCRUZ, Unidade Rondônia, Porto Velho, RO, Brazil; Programa de Pós-graduação em Biologia Experimental, Universidade Federal de Rondônia, Porto Velho, RO, Brazil; Instituto Nacional de Ciência e Tecnologia em Epidemiologia da Amazônia Ocidental (INCT-EpiAmO), Brazil; Centro Universitário São Lucas, UniSL, Porto Velho, RO, Brazil.
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Gomes A, Saha PP, Bhattacharya S, Ghosh S, Gomes A. Therapeutic potential of krait venom. Toxicon 2017; 131:48-53. [PMID: 28315357 DOI: 10.1016/j.toxicon.2017.03.004] [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: 09/21/2016] [Revised: 02/27/2017] [Accepted: 03/06/2017] [Indexed: 10/20/2022]
Abstract
Kraits belong to Elapideae and are widely distributed in East and South-East Asian countries. Krait venom possesses neurotoxins, membrane toxins, cardiotoxins, three finger toxins, metalloproteinases, cholinesterases, L-amino acid oxidases and serine proteases. The therapeutic potential of krait venom in pathophysiological conditions such as microbial and parasitic infections, cancer, arthritis, inflammation and blood coagulation disorder is discussed in this review. More intensive new research ventures are required to establish the therapeutic potential of krait venom in complex and emerging diseases.
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Affiliation(s)
- Antony Gomes
- Laboratory of Toxinology & Experimental Pharmacodynamics, Department of Physiology, University of Calcutta, 92 A P C Road, Kolkata, 700 009, India.
| | - Partha Pratim Saha
- Laboratory of Toxinology & Experimental Pharmacodynamics, Department of Physiology, University of Calcutta, 92 A P C Road, Kolkata, 700 009, India
| | - Shamik Bhattacharya
- Laboratory of Toxinology & Experimental Pharmacodynamics, Department of Physiology, University of Calcutta, 92 A P C Road, Kolkata, 700 009, India
| | - Sourav Ghosh
- Laboratory of Toxinology & Experimental Pharmacodynamics, Department of Physiology, University of Calcutta, 92 A P C Road, Kolkata, 700 009, India
| | - Aparna Gomes
- Laboratory of Toxinology & Experimental Pharmacodynamics, Department of Physiology, University of Calcutta, 92 A P C Road, Kolkata, 700 009, India
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Calixto Júnior JT, de Morais SM, Gomez CV, Molas CC, Rolon M, Boligon AA, Athayde ML, de Morais Oliveira CD, Tintino SR, Henrique Douglas MC. Phenolic composition and antiparasitic activity of plants from the Brazilian Northeast "Cerrado". Saudi J Biol Sci 2016; 23:434-40. [PMID: 27081371 PMCID: PMC4818332 DOI: 10.1016/j.sjbs.2015.10.009] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2015] [Revised: 10/11/2015] [Accepted: 10/13/2015] [Indexed: 11/15/2022] Open
Abstract
This work describes the antiparasitic and cytotoxic activities of three plant species from the Cerrado biome, Northeastern Brazil. Significant antiparasitic inhibition was observed against Trypanosoma cruzi (63.86%), Leishmania brasiliensis (92.20%) and Leishmania infantum (95.23%) when using ethanol extract from leaves of Guazuma ulmifolia Lam. (Malvaceae), at a concentration of 500 μg/mL. However, low levels of inhibition were observed when assessing leishmanicidal and trypanocidal (Clone CL-B5) activities of crude ethanol extracts from leaves and bast tissue of Luehea paniculata (Malvaceae) and leaves and bark of Prockia crucis (Salicaceae) at a concentration of 500 μg/mL. The extracts revealed the presence of phenolic acids such as gallic acid, chlorogenic acid, caffeic acid and rosmarinic acid, as well as flavonoids such as rutin, luteolin, apigenin and quercetin - the latter detected only in G. ulmifolia. G. ulmifolia extract displayed higher leishmanicidal activity probably due to the presence of quercetin, a potent known leishmanicidal compound. A cytotoxicity test indicated values over 50% at the highest concentration (1000 μg/mL) for all natural products, which were considered cytotoxic. This points out the need for further tests to enable future in vivo trials, including antineoplastic activity on human tumor cells.
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Affiliation(s)
- João Tavares Calixto Júnior
- Post Graduation Biotechnological Programme – RENORBIO, Laboratory of Natural Products, State University of Ceará, Itaperi Campus, Fortaleza, Ceará, Brazil
| | - Selene Maia de Morais
- Post Graduation Biotechnological Programme – RENORBIO, Laboratory of Natural Products, State University of Ceará, Itaperi Campus, Fortaleza, Ceará, Brazil
| | - Celeste Vega Gomez
- Centro para el Desarrollo de la Investigación Científica (CEDIC), Fundación Moisés Bertoni/Laboratorios Díaz Gill, Asunción, Paraguay
| | - Cathia Coronel Molas
- Centro para el Desarrollo de la Investigación Científica (CEDIC), Fundación Moisés Bertoni/Laboratorios Díaz Gill, Asunción, Paraguay
| | - Miriam Rolon
- Centro para el Desarrollo de la Investigación Científica (CEDIC), Fundación Moisés Bertoni/Laboratorios Díaz Gill, Asunción, Paraguay
| | - Aline Augusti Boligon
- Department of Industrial Pharmacy, Federal University of Santa Maria, Santa Maria, Rio Grande do Sul State, Brazil
| | - Margareth Linde Athayde
- Department of Industrial Pharmacy, Federal University of Santa Maria, Santa Maria, Rio Grande do Sul State, Brazil
| | | | - Saulo Relison Tintino
- Department of Biological Chemistry, Regional University of Cariri, Crato, Ceará State, Brazil
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