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Passos JGR, Gomes JAS, Xavier-Santos JB, Yamashita FO, Cavalcanti-Cruz JV, Siqueira EMS, Garcia VB, Zucolotto SM, de Araujo-Junior RF, Ferreira LS, Silva-Junior AA, Félix-Silva J, Fernandes-Pedrosa MF. Anti-inflammatory, healing and antiophidic potential of Jatropha mollissima (Pohl) Baill. (Euphorbiaceae): From popular use to pharmaceutical formulation in gel. Biomed Pharmacother 2024; 173:116290. [PMID: 38458010 DOI: 10.1016/j.biopha.2024.116290] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2023] [Revised: 02/05/2024] [Accepted: 02/17/2024] [Indexed: 03/10/2024] Open
Abstract
Jatropha mollissima (Pohl) Baill. (Euphorbiaceae) is widely used in traditional medicine to treat inflammatory disorders. So, a topical gel containing the hydroethanolic extract of its leaves was developed and evaluated for its anti-inflammatory, wound healing, and antiophidic properties in mice. First, the chemical profile of different parts of the plant was characterized by liquid chromatography coupled to mass spectrometry (LC-MS) using molecular networking. In the leaf extract, 11 compounds were characterized, with a particular emphasis on the identification of flavonoids. The gel efficiently inhibited carrageenan-induced paw edema, as well as acute and chronic croton oil-induced ear edema models, thereby reducing inflammatory and oxidative parameters in inflamed tissues. Besides anti-inflammatory activity, the herbal gel showed significant wound healing activity. The edematogenic, hemorrhagic and dermonecrotic activities induced by Bothrops jararaca snake venom were effectively inhibited by the treatment with J. mollissima gel. The association with the herbal gel improved in up to 90% the efficacy of commercial snake antivenom in reduce venom-induced edema. Additionally, while antivenom was not able to inhibit venom-induced dermonecrosis, treatment with herbal gel reduced in 55% the dermonocrotic halo produced. These results demonstrate the pharmacological potential of the herbal gel containing J. mollissima extract, which could be a strong candidate for the development of herbal products that can be used to complement the current antivenom therapy against snake venom local toxicity.
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Affiliation(s)
- Júlia G R Passos
- Laboratory of Technology and Pharmaceutical Biotechnology (Tecbiofar), Faculty of Pharmacy, Federal University of Rio Grande do Norte, Av. General Gustavo Cordeiro de Farias, S/N, Petrópolis, Natal 59012-570, Brazil.
| | - Jacyra A S Gomes
- Laboratory of Technology and Pharmaceutical Biotechnology (Tecbiofar), Faculty of Pharmacy, Federal University of Rio Grande do Norte, Av. General Gustavo Cordeiro de Farias, S/N, Petrópolis, Natal 59012-570, Brazil.
| | - Jacinthia B Xavier-Santos
- Laboratory of Technology and Pharmaceutical Biotechnology (Tecbiofar), Faculty of Pharmacy, Federal University of Rio Grande do Norte, Av. General Gustavo Cordeiro de Farias, S/N, Petrópolis, Natal 59012-570, Brazil.
| | - Fabiana O Yamashita
- Laboratory of Technology and Pharmaceutical Biotechnology (Tecbiofar), Faculty of Pharmacy, Federal University of Rio Grande do Norte, Av. General Gustavo Cordeiro de Farias, S/N, Petrópolis, Natal 59012-570, Brazil.
| | - Joelly V Cavalcanti-Cruz
- Laboratory of Technology and Pharmaceutical Biotechnology (Tecbiofar), Faculty of Pharmacy, Federal University of Rio Grande do Norte, Av. General Gustavo Cordeiro de Farias, S/N, Petrópolis, Natal 59012-570, Brazil.
| | - Emerson M S Siqueira
- Laboratory of Pharmacognosy (PNBio), Department of Pharmacy, Faculty of Pharmacy, Federal University of Rio Grande do Norte, Av. General Gustavo Cordeiro de Farias, S/N, Petrópolis, Natal 59012-570, Brazil.
| | - Vinícius Barreto Garcia
- Cancer and Inflammatory Research Laboratory, Department of Morphology, Federal University of Rio Grande do Norte, Av. Senador Salgado Filho, 3000, Lagoa Nova, Natal 59078-970, Brazil.
| | - Silvana M Zucolotto
- Laboratory of Pharmacognosy (PNBio), Department of Pharmacy, Faculty of Pharmacy, Federal University of Rio Grande do Norte, Av. General Gustavo Cordeiro de Farias, S/N, Petrópolis, Natal 59012-570, Brazil.
| | - Raimundo Fernandes de Araujo-Junior
- Cancer and Inflammatory Research Laboratory, Department of Morphology, Federal University of Rio Grande do Norte, Av. Senador Salgado Filho, 3000, Lagoa Nova, Natal 59078-970, Brazil.
| | - Leandro S Ferreira
- Laboratory of Quality Control, Department of Pharmacy, Faculty of Pharmacy, Federal University of Rio Grande do Norte, Av. General Gustavo Cordeiro de Farias, S/N, Petrópolis, Natal 59012-570, Brazil.
| | - Arnóbio A Silva-Junior
- Laboratory of Technology and Pharmaceutical Biotechnology (Tecbiofar), Faculty of Pharmacy, Federal University of Rio Grande do Norte, Av. General Gustavo Cordeiro de Farias, S/N, Petrópolis, Natal 59012-570, Brazil.
| | - Juliana Félix-Silva
- Laboratory of Technology and Pharmaceutical Biotechnology (Tecbiofar), Faculty of Pharmacy, Federal University of Rio Grande do Norte, Av. General Gustavo Cordeiro de Farias, S/N, Petrópolis, Natal 59012-570, Brazil; Laboratory of Clinical Haematology, Faculty of Pharmacy, Department of Clinical and Toxicological Analysis, Federal University of Rio Grande do Norte, Natal, Brazil.
| | - Matheus F Fernandes-Pedrosa
- Laboratory of Technology and Pharmaceutical Biotechnology (Tecbiofar), Faculty of Pharmacy, Federal University of Rio Grande do Norte, Av. General Gustavo Cordeiro de Farias, S/N, Petrópolis, Natal 59012-570, Brazil.
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Zychar BC, Gonçalves LRC. Understanding Local Reactions Induced by Bothrops jararaca Venom: The Role of Inflammatory Mediators in Leukocyte-Endothelium Interactions. Biomedicines 2024; 12:734. [PMID: 38672090 PMCID: PMC11048348 DOI: 10.3390/biomedicines12040734] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2023] [Revised: 03/04/2024] [Accepted: 03/13/2024] [Indexed: 04/28/2024] Open
Abstract
In recent years, extensive research has delved into the pathophysiology of local reactions triggered by Bothrops snake venoms. Even though antivenom works well at reducing death and systemic effects, it is still not very effective in treating local reactions because it cannot counteract damage that has already been triggered. This limitation might be attributed to certain molecules that amplify the venom-induced innate response. While evidence suggests endogenous mediators at the venom site play a role in this envenomation, in Brazil, the concurrent use of anti-inflammatory agents or other drugs alongside antivenom remains uncommon. This study evaluated the pharmacological mediation of alterations in leukocyte-endothelium interactions following the experimental envenomation of mice with Bothrops jararaca venom, the main culprit of snake-related accidents in Southeast Brazil. We treated envenomed mice with inhibitors of different pharmacological pathways and observed the cremaster muscle microcirculation with intravital microscopy. We found that eicosanoids related to cyclooxygenase pathways and nitric oxide significantly contributed to B. jararaca venom-induced alterations in leukocyte-endothelium interactions. Conversely, lipoxygenase-mediated eicosanoids, histamine, and serotonin had minimal participation. Notably, dexamethasone and antivenom treatment diminished B. jararaca venom-induced alterations in leukocyte-endothelium interactions. The limited efficacy of the antivenom in managing Bothrops venom-induced local reactions emphasizes the critical need for supplementary treatments to enhance therapeutic outcomes.
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Affiliation(s)
- Bianca Cestari Zychar
- Laboratório de Fisiopatologia, Instituto Butantan, Av. Vital Brazil 1500, São Paulo 05503-900, Brazil
| | - Luís Roberto C. Gonçalves
- Laboratório de Fisiopatologia, Instituto Butantan, Av. Vital Brazil 1500, São Paulo 05503-900, Brazil
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Marinho AD, Coelho Jorge AR, Nogueira Junior FA, Alison de Moraes Silveira J, Rocha DG, Negreiros Nunes Alves AP, Ferreira RS, Bezerra Jorge RJ, Azul Monteiro HS. Effects of cilostazol, a Phosphodiesterase-3 inhibitor, on kidney function and redox imbalance in acute kidney injury caused by Bothrops alternatus venom. Toxicon 2022; 220:106922. [PMID: 36167141 DOI: 10.1016/j.toxicon.2022.09.008] [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: 05/10/2022] [Revised: 09/08/2022] [Accepted: 09/09/2022] [Indexed: 11/28/2022]
Abstract
The mechanisms of pathogenesis of acute kidney injury (AKI) in snakebites is multifactorial and involves hemodynamic disturbances, with release of free radical causing cytotoxic effects. The phosphodiesterase-3 (PDE3) inhibitor, Cilostazol, has been reported to provide protection against renal oxidative stress. OBJECTIVE We evaluated the protective effects of cilostazol against Bothrops alternatus snake venom (BaV)-induced nephrotoxicity. METHODS Wistar rat kidneys (n = 6, 260-300 g) were isolated and perfused with Krebs-Henseleit solution containing 6 g/100 mL of bovine serum albumin. After 30 min, the kidneys were perfused with BaV to a final concentration of 1 and 3 μg/mL, and subsequently evaluated for perfusion pressure (PP), renal vascular resistance (RVR), urinary flow (UF), glomerular filtration rate (GFR), and percentage of electrolyte tubular sodium and chloride transport (%TNa+, %TCl-). Oxidative stress and renal histological analyses were performed. RESULTS BaV caused a reduction in all the evaluated renal parameters (PP, RVR, GFR, UF, %TNa+, and %TCl-). Although only the effects on PP and UF were reversed with cilostazol treatment, the decrease in the malondialdehyde levels, without changes in glutathione levels, further reduced the venom-induced renal tissue changes. CONCLUSION Our data suggest that PDE3 is involved in BaV-induced nephrotoxicity, as cilostazol administration significantly ameliorated these effects.
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Affiliation(s)
- Aline Diogo Marinho
- Department of Physiology and Pharmacology, School of Medicine, Federal University of Ceara, Coronel Nunes de Melo St., 1127, 60.430-275, Fortaleza, CE, Brazil; Drug Research and Development Center (NPDM), Federal University of Ceara, Coronel Nunes de Melo St., 1000, 60.430-275, Fortaleza, CE, Brazil.
| | - Antônio Rafael Coelho Jorge
- Department of Physiology and Pharmacology, School of Medicine, Federal University of Ceara, Coronel Nunes de Melo St., 1127, 60.430-275, Fortaleza, CE, Brazil; Drug Research and Development Center (NPDM), Federal University of Ceara, Coronel Nunes de Melo St., 1000, 60.430-275, Fortaleza, CE, Brazil
| | - Francisco Assis Nogueira Junior
- Department of Physiology and Pharmacology, School of Medicine, Federal University of Ceara, Coronel Nunes de Melo St., 1127, 60.430-275, Fortaleza, CE, Brazil; Drug Research and Development Center (NPDM), Federal University of Ceara, Coronel Nunes de Melo St., 1000, 60.430-275, Fortaleza, CE, Brazil
| | - João Alison de Moraes Silveira
- Department of Physiology and Pharmacology, School of Medicine, Federal University of Ceara, Coronel Nunes de Melo St., 1127, 60.430-275, Fortaleza, CE, Brazil; Drug Research and Development Center (NPDM), Federal University of Ceara, Coronel Nunes de Melo St., 1000, 60.430-275, Fortaleza, CE, Brazil
| | - Danilo Galvão Rocha
- Department of Physiology and Pharmacology, School of Medicine, Federal University of Ceara, Coronel Nunes de Melo St., 1127, 60.430-275, Fortaleza, CE, Brazil; Drug Research and Development Center (NPDM), Federal University of Ceara, Coronel Nunes de Melo St., 1000, 60.430-275, Fortaleza, CE, Brazil
| | - Ana Paula Negreiros Nunes Alves
- Drug Research and Development Center (NPDM), Federal University of Ceara, Coronel Nunes de Melo St., 1000, 60.430-275, Fortaleza, CE, Brazil; Department of Dental Clinic, School of Pharmacy, Dentistry and Nursing, Federal University of Ceara, Fortaleza, Monsenhor Furtado St., 60.430-350, Fortaleza, Brazil
| | - Rui Seabra Ferreira
- Center for the Study of Venoms and Venomous Animals, Fazenda Experimental Lageado, São Paulo State University, José Barbosa de Barros St., 1780, 18610-307, Botucatu, SP, Brazil
| | - Roberta Jeane Bezerra Jorge
- Department of Physiology and Pharmacology, School of Medicine, Federal University of Ceara, Coronel Nunes de Melo St., 1127, 60.430-275, Fortaleza, CE, Brazil; Drug Research and Development Center (NPDM), Federal University of Ceara, Coronel Nunes de Melo St., 1000, 60.430-275, Fortaleza, CE, Brazil
| | - Helena Serra Azul Monteiro
- Department of Physiology and Pharmacology, School of Medicine, Federal University of Ceara, Coronel Nunes de Melo St., 1127, 60.430-275, Fortaleza, CE, Brazil; Drug Research and Development Center (NPDM), Federal University of Ceara, Coronel Nunes de Melo St., 1000, 60.430-275, Fortaleza, CE, Brazil
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Dias da Silva W, De Andrade SA, Megale ÂAA, De Souza DA, Sant’Anna OA, Magnoli FC, Guidolin FR, Godoi KS, Saladini LY, Spencer PJ, Portaro FCV. Antibodies as Snakebite Antivenoms: Past and Future. Toxins (Basel) 2022; 14:toxins14090606. [PMID: 36136544 PMCID: PMC9503307 DOI: 10.3390/toxins14090606] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2022] [Revised: 08/26/2022] [Accepted: 08/27/2022] [Indexed: 11/30/2022] Open
Abstract
Snakebite envenomation is considered a neglected tropical disease, affecting tens of thousands of people each year. The recommended treatment is the use of antivenom, which is composed of immunoglobulins or immunoglobulin fragments obtained from the plasma of animals hyperimmunized with one (monospecific) or several (polyspecific) venoms. In this review, the efforts made in the improvement of the already available antivenoms and the development of new antivenoms, focusing on snakes of medical importance from sub-Saharan Africa and Latin America, are described. Some antivenoms currently used are composed of whole IgGs, whereas others use F(ab’)2 fragments. The classic methods of attaining snake antivenoms are presented, in addition to new strategies to improve their effectiveness. Punctual changes in immunization protocols, in addition to the use of cross-reactivity between venoms from different snakes for the manufacture of more potent and widely used antivenoms, are presented. It is known that venoms are a complex mixture of components; however, advances in the field of antivenoms have shown that there are key toxins that, if effectively blocked, are capable of reversing the condition of in vivo envenomation. These studies provide an opportunity for the use of monoclonal antibodies in the development of new-generation antivenoms. Thus, monoclonal antibodies and their fragments are described as a possible alternative for the production of antivenoms, regardless of the venom. This review also highlights the challenges associated with their development.
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Affiliation(s)
- Wilmar Dias da Silva
- Immuchemistry Laboratory, Butantan Institute, São Paulo 05503-900, Brazil
- Correspondence: (W.D.S.); (F.C.V.P.)
| | - Sonia A. De Andrade
- Biopharmaceuticals Laboratory, Butantan Institute, São Paulo 05503-900, Brazil
| | | | | | | | | | | | | | - Lucas Yuri Saladini
- Laboratory of Structure and Function of Biomolecules, Butantan Institute, São Paulo 05503-900, Brazil
| | | | - Fernanda Calheta Vieira Portaro
- Laboratory of Structure and Function of Biomolecules, Butantan Institute, São Paulo 05503-900, Brazil
- Correspondence: (W.D.S.); (F.C.V.P.)
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5
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Sachetto ATA, Miyamoto JG, Tashima AK, de Souza AO, Santoro ML. The Bioflavonoids Rutin and Rutin Succinate Neutralize the Toxins of B. jararaca Venom and Inhibit its Lethality. Front Pharmacol 2022; 13:828269. [PMID: 35264963 PMCID: PMC8899467 DOI: 10.3389/fphar.2022.828269] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2021] [Accepted: 01/27/2022] [Indexed: 12/12/2022] Open
Abstract
The venom of the Brazilian pit viper Bothrops jararaca (BjV) is a complex mixture of molecules, and snake venom metalloproteinases (SVMP) and serine proteinases (SVSP) are the most abundant protein families found therein. Toxins present in BjV trigger most of the deleterious disturbances in hemostasis observed in snakebites, i.e., thrombocytopenia, hypofibrinogenemia and bleedings. The treatment of patients bitten by snakes still poses challenges and the bioflavonoid rutin has already been shown to improve hemostasis in an experimental model of snakebite envenomation. However, rutin is poorly soluble in water; in this study, it was succinylated to generate its water-soluble form, rutin succinate (RS), which was analyzed comparatively regarding the chemical structure and characteristic features of rutin. Biological activities of rutin and RS were compared on hemostatic parameters, and against toxic activities of crude BjV in vitro. In vivo, C57BL/6 mice were injected i.p. with either BjV alone or pre-incubated with rutin, RS or 1,10-phenanthroline (o-phe, an SVMP inhibitor), and the survival rates and hemostatic parameters were analyzed 48 h after envenomation. RS showed the characteristic activities described for rutin – i.e., antioxidant and inhibitor of protein disulfide isomerase – but also prolonged the clotting time of fibrinogen and plasma in vitro. Differently from rutin, RS inhibited typical proteolytic activities of SVMP, as well as the coagulant activity of BjV. Importantly, both rutin and RS completely abrogated the lethal activity of BjV, in the same degree as o-phe. BjV induced hemorrhages, falls in RBC counts, thrombocytopenia and hypofibrinogenemia in mice. Rutin and RS also improved the recovery of platelet counts and fibrinogen levels, and the development of hemorrhages was totally blocked in mice injected with BjV incubated with RS. In conclusion, RS has anticoagulant properties and is a novel SVMP inhibitor. Rutin and RS showed different mechanisms of action on hemostasis. Only RS inhibited directly BjV biological activities, even though both flavonoids neutralized B. jararaca toxicity in vivo. Our results showed clearly that rutin and RS show a great potential to be used as therapeutic compounds for snakebite envenomation.
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Affiliation(s)
- Ana Teresa Azevedo Sachetto
- Laboratory of Pathophysiology, Institute Butantan, São Paulo, Brazil.,Department of Medical Sciences, School of Medicine, University of São Paulo, São Paulo, Brazil
| | - Jackson Gabriel Miyamoto
- Department of Biochemistry, Escola Paulista de Medicina, Federal University of São Paulo, (EPM/UNIFESP), São Paulo, Brazil
| | - Alexandre Keiji Tashima
- Department of Biochemistry, Escola Paulista de Medicina, Federal University of São Paulo, (EPM/UNIFESP), São Paulo, Brazil
| | - Ana Olívia de Souza
- Laboratory of Development and Innovation, Institute Butantan, São Paulo, Brazil
| | - Marcelo Larami Santoro
- Laboratory of Pathophysiology, Institute Butantan, São Paulo, Brazil.,Department of Medical Sciences, School of Medicine, University of São Paulo, São Paulo, Brazil
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Dourado DM, Matias R, da Silva BAK, Milanesi FF, Martello MD, Dos Santos CHM, Cardoso CAL, Vieira WF, da Cruz-Höfling MA. Benefits of Sebastiania hispida (Euphorbiaceae) extract and photobiomodulation therapy as potentially adjunctive strategies to be explored against snake envenoming. Photochem Photobiol Sci 2021; 20:1069-1085. [PMID: 34341968 DOI: 10.1007/s43630-021-00081-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2021] [Accepted: 07/26/2021] [Indexed: 12/15/2022]
Abstract
The purpose of this study was to assess the topic use of Sebastiania hispida extract and low-level gallium-arsenide laser irradiation (GaAs, 904 nm) to reduce the local myonecrosis and edema of Bothrops moojeni snake venom-injected gastrocnemius. Wistar rats receiving intramuscular venom injection (VBm) were compared with saline control (S) and envenomed rats receiving local exposure to plant extract (VExt) or laser irradiation (VL). The phytochemistry and thin-layer chromatography of S. hispida extract indicated the presence of phenolic compounds like gallic acid and flavonoids including quercetin. Gastrocnemius of VExt and VL groups had a significant reduction of edema and creatine kinase (CK) activities and a greater Myogenin (MyoG) expression compared to VBm group, with the plant extract efficacy better than laser exposure. Reduction of edema and serum CK activities reflects a lessening of muscle damage, whereas the increase of MyoG indicates myoblast differentiation and acceleration of muscle repair. The S. hispida richness in phenolic compounds and flavonoids, such as the light modulatory ability to triggering a multitude of cell signalings likely underlie the positive outcomes. Our findings suggest both treatments as potential auxiliary tools to be explored in clinical trials in combination with anti-venom therapy after Bothropic snakebites.
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Affiliation(s)
- Doroty Mesquita Dourado
- Laboratory of Toxicology and Medicinal Plants, Anhanguera-Uniderp University, Campo Grande, MS, Brazil.,Postgraduate Program in Infectious and Parasitic Diseases, Federal University of Mato Grosso do Sul (UFMS), Campo Grande, MS, Brazil.,Department of Structural and Functional Biology, Institute of Biology, University of Campinas (UNICAMP), Campinas, SP, Brazil
| | - Rosemary Matias
- Postgraduate Program in Environment and Regional Development, Anhanguera-Uniderp University, Campo Grande, MS, Brazil
| | - Baldomero Antonio Kato da Silva
- Postgraduate Program in Biomedical Sciences, Federal University of Delta do Parnaíba (UFDPar), Av. São Sebastião 2819, Parnaíba, PI, 64202-020, Brazil.
| | - Fiorela Faria Milanesi
- Health and Environment: Biodiversity Program at Oswaldo Cruz Foundation MS, Campo Grande, MS, Brazil
| | - Mayra Duarte Martello
- Postgraduate Program in Biochemistry and Molecular Biology, Federal University of Mato Grosso do Sul (UFMS), Campo Grande, MS, Brazil
| | | | | | - Willians Fernando Vieira
- Department of Structural and Functional Biology, Institute of Biology, University of Campinas (UNICAMP), Campinas, SP, Brazil
| | - Maria Alice da Cruz-Höfling
- Department of Structural and Functional Biology, Institute of Biology, University of Campinas (UNICAMP), Campinas, SP, Brazil
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Vieira SAPB, Dos Santos BM, Santos Júnior CD, de Paula VF, Gomes MSR, Ferreira GM, Gonçalves RL, Hirata MH, da Silva RA, Brandeburgo MIH, Mendes MM. Isohemigossypolone: Antiophidic properties of a naphthoquinone isolated from Pachira aquatica Aubl. Comp Biochem Physiol C Toxicol Pharmacol 2021; 245:109028. [PMID: 33676005 DOI: 10.1016/j.cbpc.2021.109028] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/03/2021] [Revised: 02/16/2021] [Accepted: 02/23/2021] [Indexed: 01/17/2023]
Abstract
We investigated the antiophidic properties of isohemigossypolone (ISO), a naphthoquinone isolated from the outer bark of the Pachira aquatic Aubl. The inhibition of phospholipase A2, coagulant, fibrinogenolytic, hemorrhagic and myotoxic activities induced by Bothrops pauloensis venom (Pb) was investigated. For this, we use samples resulting from the incubation of Pb with ISO in different concentrations (1:1, 1:5 and 1:10 w/w), we also evaluated the condition of treatment using ISO after 15 min of venom inoculation. The activities of phospholipase A2, coagulant, fibrinogenolytic, hemorrhagic and myotoxic induced by the B. pauloensis venom were significantly inhibited when the ISO was pre-incubated with the crude venom. For in vivo neutralization tests, the results were observed even when the ISO was applied after 15 min of inoculation of the venom or metalloprotease (BthMP). Also, to identify the inhibition mechanism, we performed in silico assays, across simulations of molecular coupling and molecular dynamics, it was possible to identify the modes of interaction between ISO and bothropic toxins BmooMPα-I, Jararacussin-I and BNSP-7. The present study shows that naphthoquinone isohemigossypolone isolated from the P. aquatica plant inhibited part of the local and systemic damage caused by venom proteins, demonstrating the pharmacological potential of this compound in neutralizing the harmful effects caused by snakebites.
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Affiliation(s)
| | - Benedito Matheus Dos Santos
- Department of Clinical and Toxicological Analysis, School of Pharmaceutical Sciences, University of São Paulo (USP), São Paulo, SP, Brazil
| | - Célio Dias Santos Júnior
- Institute of Genetics and Biochemistry, Federal University of Uberlândia (UFU), Uberlândia, MG, Brazil
| | - Vanderlúcia Fonseca de Paula
- Laboratory of Natural Products, Department of Sciences and Technology, State University of Bahia Southwest (UESB), Jequié, BA, Brazil
| | - Mario Sergio Rocha Gomes
- Institute of Genetics and Biochemistry, Federal University of Uberlândia (UFU), Uberlândia, MG, Brazil
| | - Glaucio Monteiro Ferreira
- Department of Clinical and Toxicological Analysis, School of Pharmaceutical Sciences, University of São Paulo (USP), São Paulo, SP, Brazil
| | | | - Mario Hiroyuki Hirata
- Department of Clinical and Toxicological Analysis, School of Pharmaceutical Sciences, University of São Paulo (USP), São Paulo, SP, Brazil
| | | | | | - Mirian Machado Mendes
- Special Academic Unit of Biosciences, Federal University of Goiás (UFG), Jataí, GO, Brazil.
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8
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Silva GM, Berto DH, Lima CA, Waitman KB, Lima CFG, Prezoto BC, Vieira ML, Rocha MMT, Gonçalves LRC, Andrade SA. Synergistic effect of serine protease inhibitors and a bothropic antivenom in reducing local hemorrhage and coagulopathy caused by Bothrops jararaca venom. Toxicon 2021; 199:87-93. [PMID: 34126124 DOI: 10.1016/j.toxicon.2021.06.009] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2021] [Revised: 06/05/2021] [Accepted: 06/10/2021] [Indexed: 01/11/2023]
Abstract
Snakebite accidents are a public health problem that affects the whole world, causing thousands of deaths and amputations each year. In Brazil, snakebite envenomations are caused mostly by snakes from the Bothrops genus. The local symptoms are characterized by pain, swelling, ecchymosis, and hemorrhages. Systemic disturbances can lead to necrosis and amputations. The present treatment consists of intravenous administration of bothropic antivenom, which is capable of reversing most of the systemic symptoms, while presenting limitations to treat the local effects, such as hemorrhage and to neutralize the snake venom serine protease (SVSP). In this context, we aimed to evaluate the activity of selective serine protease inhibitors (pepC and pepB) in combination with the bothropic antivenom in vivo. Further, we assessed their possible synergistic effect in the treatment of coagulopathy and hemorrhage induced by Bothrops jararaca venom. For this, we evaluated the in vivo activity in mouse models of local hemorrhage and a series of in vitro hemostasis assays. Our results showed that pepC and pepB, when combinated with the antivenom, increase its protective activity in vivo and decrease the hemostatic disturbances in vitro with high selectivity, possibly by inhibiting botropic proteases. These data suggest that the addition of serine protease inhibitor to the antivenom can improve its overall potential.
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Affiliation(s)
- G M Silva
- Laboratory of Pain and Signaling - Butantan Institute, São Paulo, Brazil.
| | - D H Berto
- Laboratory of Pain and Signaling - Butantan Institute, São Paulo, Brazil
| | - C A Lima
- Laboratory of Pain and Signaling - Butantan Institute, São Paulo, Brazil
| | - K B Waitman
- Laboratory of Pain and Signaling - Butantan Institute, São Paulo, Brazil
| | - C F G Lima
- Laboratory of Pain and Signaling - Butantan Institute, São Paulo, Brazil
| | - B C Prezoto
- Laboratory of Pharmacology - Butantan Institute, São Paulo, Brazil
| | - M L Vieira
- Department of Microbiology, Federal University of Minas Gerais (UFMG), Belo Horizonte, Brazil
| | - M M T Rocha
- Laboratory of Herpetology - Butantan Institute, São Paulo, Brazil
| | - L R C Gonçalves
- Laboratory of Pathophysiology - Butantan Institute, São Paulo, Brazil
| | - S A Andrade
- Laboratory of Pain and Signaling - Butantan Institute, São Paulo, Brazil
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Simas Pereira Junior LC, Coriolano de Oliveira E, Valle Rorig TD, Pinto de Araújo PI, Sanchez EF, Garrett R, Palazzo de Mello JC, Fuly AL. The plant Stryphnodendron adstringens (Mart.) Coville as a neutralizing source against some toxic activities of Bothrops jararacussu snake venom. Toxicon 2020; 186:182-190. [PMID: 32822735 DOI: 10.1016/j.toxicon.2020.08.011] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2020] [Revised: 07/21/2020] [Accepted: 08/12/2020] [Indexed: 10/23/2022]
Abstract
Snakebites produce several toxic effects in victims, such as hemorrhage, tissue necrosis, hemostatic, renal, or cardiotoxic alterations, inflammation, and death. To counteract these symptoms, antivenom is the official treatment. Although such therapy prevents death, it does not efficiently neutralize necrosis or other local effects, leading to amputation or morbidities of the affected limb. Therefore, the search for better and more efficient therapies deserves attention; further, plants have been used to ameliorate a number of diseases and medical conditions, including snakebites, for many years. Thus, the aim of this work was to evaluate the antivenom effect of the crude extract, fractions (aqueous and diethyl acetate), and subfractions derived from the aqueous fraction (P1, P2, P3, and P4) of the plant Stryphnodendron adstringens against in vitro (coagulation and proteolytic) and in vivo (edema, hemorrhage, and myotoxic) activities caused by Bothrops jararacussu venom. Overall, all extracts inhibited the toxic effect of B. jararacussu venom, but with different potencies, regardless of whether plant samples were incubated together with venom or injected before or after venom injection into animals; the crude extract and aqueous fraction were found to be the most effective. Indeed, phytochemical and mass spectrometry analysis of S. adstringens samples revealed the presence of flavonols, tannins, and saponins. In conclusion, the plant S. adstringens may represent a promising natural source of molecules to treat the toxic effects associated with envenomation by B. jararacussu snakebites.
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Affiliation(s)
- Luiz Carlos Simas Pereira Junior
- Department of Molecular and Cellular Biology, Institute of Biology, Federal Fluminense University, Niterói, 24020-141, RJ, Brazil
| | - Eduardo Coriolano de Oliveira
- Department of Molecular and Cellular Biology, Institute of Biology, Federal Fluminense University, Niterói, 24020-141, RJ, Brazil
| | - Taísa Dalla Valle Rorig
- Laboratory of Pharmaceutical Biology, Palafito, State University of Maringá, Maringá, 87020-900, PR, Brazil
| | - Paula Ivens Pinto de Araújo
- Metabolomics Laboratory, Institute of Chemistry, Federal University of Rio de Janeiro, Rio de Janeiro, 21941-598, RJ, Brazil
| | - Eladio Flores Sanchez
- Laboratory of Biochemistry of Proteins from Animal Venoms, Research and Development Center, Ezequiel Dias Foundation, Belo Horizonte, 30510-010, MG, Brazil
| | - Rafael Garrett
- Metabolomics Laboratory, Institute of Chemistry, Federal University of Rio de Janeiro, Rio de Janeiro, 21941-598, RJ, Brazil
| | | | - André Lopes Fuly
- Department of Molecular and Cellular Biology, Institute of Biology, Federal Fluminense University, Niterói, 24020-141, RJ, Brazil.
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Bastos VA, Gomes-Neto F, Rocha SLG, Teixeira-Ferreira A, Perales J, Neves-Ferreira AGC, Valente RH. The interaction between the natural metalloendopeptidase inhibitor BJ46a and its target toxin jararhagin analyzed by structural mass spectrometry and molecular modeling. J Proteomics 2020; 221:103761. [PMID: 32247172 DOI: 10.1016/j.jprot.2020.103761] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2020] [Revised: 03/08/2020] [Accepted: 03/23/2020] [Indexed: 12/31/2022]
Abstract
Snakebite envenoming affects millions of people worldwide, being officially considered a neglected tropical disease by the World Health Organization. The antivenom is effective in neutralizing the systemic effects of envenomation, but local effects are poorly neutralized, often leading to permanent disability. The natural resistance of the South American pit viper Bothrops jararaca to its venom is partly attributed to BJ46a, a natural snake venom metalloendopeptidase inhibitor. Upon complex formation, BJ46a binds non-covalently to the metalloendopeptidase, rendering it unable to exert its proteolytic activity. However, the structural features that govern this interaction are largely unknown. In this work, we applied structural mass spectrometry techniques (cross-linking-MS and hydrogen-deuterium exchange MS) and in silico analyses (molecular modeling, docking, and dynamics simulations) to understand the interaction between BJ46a and jararhagin, a metalloendopeptidase from B. jararaca venom. We explored the distance restraints generated from XL-MS experiments to guide the modeling of BJ46a and jararhagin, as well as the protein-protein docking simulations. HDX-MS data pinpointed regions of protection/deprotection at the interface of the BJ46a-jararhagin complex which, in addition to the molecular dynamics simulation data, reinforced our proposed interaction model. Ultimately, the structural understanding of snake venom metalloendopeptidases inhibition by BJ46a could lead to the rational design of drugs to improve anti-snake venom therapeutics, alleviating the high morbidity rates currently observed.
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Affiliation(s)
- Viviane A Bastos
- Laboratory of Toxinology, Oswaldo Cruz Foundation (FIOCRUZ), Rio de Janeiro, Brazil
| | - Francisco Gomes-Neto
- Laboratory of Toxinology, Oswaldo Cruz Foundation (FIOCRUZ), Rio de Janeiro, Brazil
| | - Surza Lucia G Rocha
- Laboratory of Toxinology, Oswaldo Cruz Foundation (FIOCRUZ), Rio de Janeiro, Brazil
| | | | - Jonas Perales
- Laboratory of Toxinology, Oswaldo Cruz Foundation (FIOCRUZ), Rio de Janeiro, Brazil
| | | | - Richard H Valente
- Laboratory of Toxinology, Oswaldo Cruz Foundation (FIOCRUZ), Rio de Janeiro, Brazil.
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11
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Kuniyoshi AK, Kodama RT, Cajado-Carvalho D, Iwai LK, Kitano E, da Silva CCF, Duzzi B, Dias da Silva W, Portaro FC. Experimental antivenom against serine proteases from the Bothrops jararaca venom obtained in mice, and its comparison with the antibothropic serum from the Butantan Institute. Toxicon 2019; 169:59-67. [DOI: 10.1016/j.toxicon.2019.09.001] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2019] [Revised: 08/15/2019] [Accepted: 09/01/2019] [Indexed: 11/25/2022]
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12
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Inhibitory effects of Morus nigra L. (Moraceae) against local paw edema and mechanical hypernociception induced by Bothrops jararacussu snake venom in mice. Biomed Pharmacother 2019; 111:1046-1056. [DOI: 10.1016/j.biopha.2019.01.011] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2018] [Revised: 01/03/2019] [Accepted: 01/05/2019] [Indexed: 12/25/2022] Open
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13
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Félix-Silva J, Gomes JA, Xavier-Santos JB, Passos JG, Silva-Junior AA, Tambourgi DV, Fernandes-Pedrosa MF. Inhibition of local effects induced by Bothrops erythromelas snake venom: Assessment of the effectiveness of Brazilian polyvalent bothropic antivenom and aqueous leaf extract of Jatropha gossypiifolia. Toxicon 2017; 125:74-83. [DOI: 10.1016/j.toxicon.2016.11.260] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2016] [Revised: 10/31/2016] [Accepted: 11/23/2016] [Indexed: 10/20/2022]
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Bastos VA, Gomes-Neto F, Perales J, Neves-Ferreira AGC, Valente RH. Natural Inhibitors of Snake Venom Metalloendopeptidases: History and Current Challenges. Toxins (Basel) 2016; 8:toxins8090250. [PMID: 27571103 PMCID: PMC5037476 DOI: 10.3390/toxins8090250] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2016] [Revised: 08/11/2016] [Accepted: 08/15/2016] [Indexed: 01/13/2023] Open
Abstract
The research on natural snake venom metalloendopeptidase inhibitors (SVMPIs) began in the 18th century with the pioneering work of Fontana on the resistance that vipers exhibited to their own venom. During the past 40 years, SVMPIs have been isolated mainly from the sera of resistant animals, and characterized to different extents. They are acidic oligomeric glycoproteins that remain biologically active over a wide range of pH and temperature values. Based on primary structure determination, mammalian plasmatic SVMPIs are classified as members of the immunoglobulin (Ig) supergene protein family, while the one isolated from muscle belongs to the ficolin/opsonin P35 family. On the other hand, SVMPIs from snake plasma have been placed in the cystatin superfamily. These natural antitoxins constitute the first line of defense against snake venoms, inhibiting the catalytic activities of snake venom metalloendopeptidases through the establishment of high-affinity, non-covalent interactions. This review presents a historical account of the field of natural resistance, summarizing its main discoveries and current challenges, which are mostly related to the limitations that preclude three-dimensional structural determinations of these inhibitors using “gold-standard” methods; perspectives on how to circumvent such limitations are presented. Potential applications of these SVMPIs in medicine are also highlighted.
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Affiliation(s)
- Viviane A Bastos
- Laboratory of Toxinology, Oswaldo Cruz Foundation (FIOCRUZ), Rio de Janeiro 21040-900, Brazil.
- National Institute of Science and Technology on Toxins (INCTTOX), CNPq, Brasilia 71605-001, Brazil.
| | - Francisco Gomes-Neto
- Laboratory of Toxinology, Oswaldo Cruz Foundation (FIOCRUZ), Rio de Janeiro 21040-900, Brazil.
- National Institute of Science and Technology on Toxins (INCTTOX), CNPq, Brasilia 71605-001, Brazil.
| | - Jonas Perales
- Laboratory of Toxinology, Oswaldo Cruz Foundation (FIOCRUZ), Rio de Janeiro 21040-900, Brazil.
- National Institute of Science and Technology on Toxins (INCTTOX), CNPq, Brasilia 71605-001, Brazil.
| | - Ana Gisele C Neves-Ferreira
- Laboratory of Toxinology, Oswaldo Cruz Foundation (FIOCRUZ), Rio de Janeiro 21040-900, Brazil.
- National Institute of Science and Technology on Toxins (INCTTOX), CNPq, Brasilia 71605-001, Brazil.
| | - Richard H Valente
- Laboratory of Toxinology, Oswaldo Cruz Foundation (FIOCRUZ), Rio de Janeiro 21040-900, Brazil.
- National Institute of Science and Technology on Toxins (INCTTOX), CNPq, Brasilia 71605-001, Brazil.
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Nishijima CM, Delella FK, Rodrigues CM, Rinaldo D, Lopes-Ferreira MVDA, da Rocha LRM, Vilegas W, Felisbino SL, Hiruma-Lima CA. The Anti-Inflammatory Effects of the Methanolic Extract and Fractions from Davilla elliptica St. Hil. (Dilleniaceae) on Bothrops jararaca Envenomation. Int J Mol Sci 2015; 16:12454-66. [PMID: 26042466 PMCID: PMC4490454 DOI: 10.3390/ijms160612454] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2015] [Revised: 05/19/2015] [Accepted: 05/19/2015] [Indexed: 11/16/2022] Open
Abstract
Inflammation and haemorrhage are the main characteristics of tissue injury in botropic envenomation. Although some studies have shown that anti-venom prevents systemic reactions, it is not efficient in preventing tissue injury at the site of the bite. Therefore, this work was undertaken to investigate the anti-inflammatory effects of the methanolic extract and fractions from D. elliptica and to evaluate the role of matrix metalloproteinases (MMPs) in this process. Effects of the extract and fractions from D. elliptica were evaluated using a carrageenan-induced paw oedema model in rats, and leukocyte rolling was visualized by intravital. The quantification of MMPs activities (MMP-2 and MMP-9) extracted from the dermis of mice treated with extract and fractions alone or incubated with venom was determined by zymographic analyses. Our results show that intraperitoneal (i.p.) injection of fractions significantly reduced paw oedema after the carrageenan challenge. Treatment with the tannins fraction also resulted in considerable inhibition of the rolling of leukocytes and this fraction was able to decrease the activation of MMP-9. These results confirmed the anti-inflammatory activity of the methanolic extract and tannins fraction of D. elliptica and showed that the dermonecrosis properties of B. jararaca venom might be mediated through the inhibition of MMP-9 activity.
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Affiliation(s)
- Catarine Massucato Nishijima
- Departamento de Fisiologia, Instituto de Biociências, Universidade Estadual Paulista-UNESP, CEP 18618-970 Botucatu, São Paulo, Brazil.
| | - Flavia Karina Delella
- Departamento de Morfologia, Instituto de Biociências, Universidade Estadual Paulista-UNESP, CEP 18618-970 Botucatu, São Paulo, Brazil.
| | - Clenilson Martins Rodrigues
- Centro Nacional de Pesquisa de Agroenergia (CNPAE), Empresa Brasileira de Pesquisa Agropecuária, CEP 70770-901, Brasília, Brazil.
| | - Daniel Rinaldo
- Faculdade de Ciências de Bauru, Universidade Estadual Paulista-UNESP, CEP 17033-360 Bauru, Brazil.
| | | | - Lucia Regina Machado da Rocha
- Departamento de Fisiologia, Instituto de Biociências, Universidade Estadual Paulista-UNESP, CEP 18618-970 Botucatu, São Paulo, Brazil.
| | - Wagner Vilegas
- Campus Experimental do Litoral Paulista, Universidade Estadual Paulista-UNESP, CEP 11330-900 São Vicente, São Paulo, Brazil.
| | - Sergio Luis Felisbino
- Departamento de Morfologia, Instituto de Biociências, Universidade Estadual Paulista-UNESP, CEP 18618-970 Botucatu, São Paulo, Brazil.
| | - Clélia Akiko Hiruma-Lima
- Departamento de Fisiologia, Instituto de Biociências, Universidade Estadual Paulista-UNESP, CEP 18618-970 Botucatu, São Paulo, Brazil.
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16
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Schneider FS, Nguyen DL, Castro KL, Cobo S, Machado de Avila RA, Ferreira NDA, Sanchez EF, Nguyen C, Granier C, Galéa P, Chávez-Olortegui C, Molina F. Use of a synthetic biosensor for neutralizing activity-biased selection of monoclonal antibodies against atroxlysin-I, an hemorrhagic metalloproteinase from Bothrops atrox snake venom. PLoS Negl Trop Dis 2014; 8:e2826. [PMID: 24762927 PMCID: PMC3998924 DOI: 10.1371/journal.pntd.0002826] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2013] [Accepted: 03/13/2014] [Indexed: 11/20/2022] Open
Abstract
Background The snake Bothrops atrox is responsible for the majority of envenomings in the northern region of South America. Severe local effects, including hemorrhage, which are mainly caused by snake venom metalloproteinases (SVMPs), are not fully neutralized by conventional serum therapy. Little is known about the immunochemistry of the P-I SVMPs since few monoclonal antibodies (mAbs) against these molecules have been obtained. In addition, producing toxin-neutralizing mAbs remains very challenging. Methodology/Principal Findings Here, we report on the set-up of a functional screening based on a synthetic peptide used as a biosensor to select neutralizing mAbs against SVMPs and the successful production of neutralizing mAbs against Atroxlysin-I (Atr-I), a P-I SVMP from B. atrox. Hybridomas producing supernatants with inhibitory effect against the proteolytic activity of Atr-I towards the FRET peptide Abz-LVEALYQ-EDDnp were selected. Six IgG1 Mabs were obtained (named mAbatr1 to mAbatr6) and also two IgM. mAbatrs1, 2, 3 and 6 were purified. All showed a high specific reactivity, recognizing only Atr-I and B. atrox venom in ELISA and a high affinity, showing equilibrium constants in the nM range for Atr-I. These mAbatrs were not able to bind to Atr-I overlapping peptides, suggesting that they recognize conformational epitopes. Conclusions/Significance For the first time a functional screening based on a synthetic biosensor was successfully used for the selection of neutralizing mAbs against SVMPs. In this work, we propose a new screening strategy to produce monoclonal antibodies against Atr-I, a P-I class SVMP from Bothrops atrox, which is the snake responsible for the majority of the accidents in South America. SVMPs are the main toxic factors in Bothrops venom causing systemic and local hemorrhage, which may evolve to inflammation and/or necrosis. Since the toxic effects of SVMPs are related to their proteolytic activity, we have produced a peptide which was used as a biosensor for Atr-I hydrolysis. Hydrolysis of this substrate was monitored and the clones possessing inhibitory activity against the proteolytic activity of Atr-I upon the peptide were selected. Using our new approach, we have obtained four monoclonal antibodies highly specific and with neutralizing capacity against the hemorrhagic activity of either Atr-I alone or Bothrops atrox whole venom. To the best of the authors' knowledge, this is the first time where a functional screening is used for the selection of neutralizing mAbs against SVMPs. It is also the first description of mAbs anti-Atr-I, with inhibitory potential against its toxic activities which may be useful for diagnosis and treatment in the future.
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Affiliation(s)
- Francisco Santos Schneider
- Departamento de Bioquímica e Imunologia, Instituto Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Brasil
| | | | - Karen Larissa Castro
- Departamento de Bioquímica e Imunologia, Instituto Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Brasil
| | - Sandra Cobo
- SysDiag, UMR3145,CNRS/BioRad, Montpellier, France
| | - Ricardo Andrez Machado de Avila
- Departamento de Bioquímica e Imunologia, Instituto Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Brasil
| | - Nivia de Assis Ferreira
- Departamento de Bioquímica e Imunologia, Instituto Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Brasil
| | - Eladio Flores Sanchez
- Departamento de Pesquisa e Desenvolvimento, Fundação Ezequiel Dias, Belo Horizonte, Brasil
| | | | | | | | - Carlos Chávez-Olortegui
- Departamento de Bioquímica e Imunologia, Instituto Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Brasil
- * E-mail:
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17
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Aranha de Sousa E, Bittencourt JAHM, Seabra de Oliveira NK, Correia Henriques SV, dos Santos Picanço LC, Lobato CP, Ribeiro JR, Pereira WLA, Carvalho JCT, da Silva JO. Effects of a low-level semiconductor gallium arsenide laser on local pathological alterations induced by Bothrops moojeni snake venom. Photochem Photobiol Sci 2014; 12:1895-902. [PMID: 23995306 DOI: 10.1039/c3pp50036e] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Antivenom therapy has been ineffective in neutralizing the tissue damage caused by snakebites. Among therapeutic strategies to minimize effects after envenoming, it was hypothesized that a low level laser would reduce complications and reduce the severity of local snake venom effects. In the current study, the effect of a low-level semiconductor gallium arsenide (GaAs) laser on the local pathological alterations induced by B. moojeni snake venom was investigated. The experimental groups consisted of five male mice, each administered either B. moojeni venom (VB), B. moojeni venom + antivenom (VAV), B. moojeni venom + laser (VL), B. moojeni venom + antivenom + laser (VAVL), or sterile saline solution (SSS) alone. Paw oedema was induced by intradermal administration of 0.05 mg kg(-1) of B. moojeni venom and was expressed in mm of directly induced oedema. Mice received by subcutaneous route 0.20 mg kg(-1) of venom for evaluating nociceptive activity and the time (in seconds) spent in licking and biting the injected paw was taken as an indicator of pain response. Inflammatory infiltration was determined by counting the number of leukocytes present in the gastrocnemius muscle after venom injection (0.10 mg kg(-1)). For histological examination of myonecrosis, venom (0.10 mg kg(-1)) was administered intramuscularly. The site of venom injection was irradiated by the GaAs laser and some animals received antivenom intraperitoneally. The results indicated that GaAs laser irradiation can help in reducing some local effects produced by the B. moojeni venom in mice, stimulating phagocytosis, proliferation of myoblasts and the regeneration of muscle fibers.
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Affiliation(s)
- Elziliam Aranha de Sousa
- Toxicology Laboratory, Pharmaceutical Science Course, Federal University of Amapá, Macapa, AP, Brazil.
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18
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Rojas A, Vargas M, Ramírez N, Estrada R, Segura A, Herrera M, Villalta M, Gómez A, Gutiérrez JM, León G. Role of the animal model on the pharmacokinetics of equine-derived antivenoms. Toxicon 2013; 70:9-14. [PMID: 23557996 DOI: 10.1016/j.toxicon.2013.03.013] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2012] [Revised: 03/06/2013] [Accepted: 03/22/2013] [Indexed: 10/27/2022]
Abstract
Antivenom pharmacokinetics has been studied in heterologous models in which the animal species used as immunoglobulin source is different from that used as recipient. In these models, after intravenous administration of antivenom, the plasma concentration of immunoglobulins shows a rapid initial declining-phase followed by a slower terminal-phase, which has been associated with antivenom distribution and elimination, respectively. We have compared pharmacokinetic parameters for equine-derived antivenom in homologous (horse) and heterologous (cow) models. It was found that the maximum concentration is lower in cows than in horses. Additionally, the steady-state distribution volume is higher in cows as compared to horses. On the other hand, models were not different in the time required to reach the maximum concentration, the area under the concentration/time curve, the half-life of decay during the slowest phase, the systemic clearance and the mean residence time. Similar results were obtained in a rabbit model, in which the pharmacokinetics was also affected by passive immunization of rabbits with anti-equine IgG. We conclude that, in addition to other physiological differences (e.g. cardiac frequency, plasmatic volume, glomerular filtration rate, etc.) between animal models, the ability to remove foreign immunoglobulins might influence the way in which the plasma concentration of antivenom decreases over time, thereby distorting the pharmacokinetic predictions based on non-compartmental models.
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Affiliation(s)
- Alicia Rojas
- Instituto Clodomiro Picado, Facultad de Microbiología, Universidad de Costa Rica, San José, Costa Rica
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Rucavado A, Escalante T, Shannon JD, Ayala-Castro CN, Villalta M, Gutiérrez JM, Fox JW. Efficacy of IgG and F(ab')2 antivenoms to neutralize snake venom-induced local tissue damage as assessed by the proteomic analysis of wound exudate. J Proteome Res 2011; 11:292-305. [PMID: 22004524 DOI: 10.1021/pr200847q] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Proteomic analysis of wound exudates represents a valuable tool to investigate tissue pathology and to assess the therapeutic success of various interventions. In this study, the ability of horse-derived IgG and F(ab')(2) antivenoms to neutralize local pathological effects induced by the venom of the snake Bothrops asper in mouse muscle was investigated by the proteomic analysis of exudates collected in the vicinity of affected tissue. In experiments involving the incubation of venom and antivenom prior to injection in mice, hemorrhagic activity was completely abolished and local muscle-damaging activity was significantly reduced by the antivenoms. In these conditions, the relative amounts of several intracellular and extracellular matrix proteins were reduced by the action of antivenoms, whereas the relative amounts of various plasma proteins were not modified. Because not all intracellular proteins were reduced, it is likely that there is a residual cytotoxicity not neutralized by antivenoms. In experiments designed to more closely reproduce the actual circumstances of envenoming, that is, when antivenom is administered after envenomation, the number of proteins whose amounts in exudates were reduced by antivenoms decreased, underscoring the difficulty in neutralizing local pathology due to the very rapid onset of venom-induced pathology. In these experiments, IgG antivenom was more efficient than F(ab')(2) antivenom when administered after envenomation, probably as a consequence of differences in their pharmacokinetic profiles.
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Affiliation(s)
- Alexandra Rucavado
- Instituto Clodomiro Picado, Facultad de Microbiología, Universidad de Costa Rica, San José, Costa Rica
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Rodrigues Sgrignolli L, Florido Mendes GE, Carlos CP, Burdmann EA. Acute Kidney Injury Caused by Bothrops Snake Venom. ACTA ACUST UNITED AC 2011; 119:c131-6; discussion c137. [DOI: 10.1159/000324228] [Citation(s) in RCA: 56] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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21
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Anti-hemorrhagic activity of four Brazilian vegetable species against Bothrops jararaca venom. Molecules 2009; 14:1072-80. [PMID: 19305361 PMCID: PMC6253879 DOI: 10.3390/molecules14031072] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2008] [Revised: 12/30/2008] [Accepted: 01/21/2009] [Indexed: 11/17/2022] Open
Abstract
Around 20,000 snakebites are reported annually in Brazil and 90% of them are inflicted by species of the genus Bothrops. Intravenous administration of antibothropic antivenom neutralizes the systemic actions, but it is of little effect on the reversal of local symptoms and often induces adverse reactions, a context that drives the search for complementary treatments for snakebite accidents. Vegetable extracts with a range of antiophidian activities constitute an excellent alternative. In this study, we investigated the anti-hemorrhagic effects of Mouriri pusa Gardn. (Melastomataceae), Byrsonima crassa Niedenzu (Malpighiaceae), Davilla elliptica St. Hill. (Dilleniaceae) and Strychnos pseudoquina St. Hil. (Loganiaceae) against Bothrops jararaca venom. The methanolic extracts from M. pusa (leaves), B. crassa (leaves) and D. elliptica (leaves) showed total neutralization capacity against local hemorrhages. The amenthoflavone and quercetin fractions from B. crassa and the flavonoids fractions (quercetin and myricetin) from M. pusa and D. elliptica also showed total neutralization capacity. We conclude that flavonoids derived from myricetin, quercetin and amenthoflavone play an important role in the anti-hemorrhagic potential of these Brazilian vegetables species against B. jararaca venom.
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22
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Zychar BC, Castro NC, Marcelino JR, Gonçalves LRC. Phenol used as a preservative in Bothrops antivenom induces impairment in leukocyte–endothelial interactions. Toxicon 2008; 51:1151-7. [DOI: 10.1016/j.toxicon.2008.01.016] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2007] [Revised: 12/19/2007] [Accepted: 01/30/2008] [Indexed: 10/22/2022]
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23
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Lira MS, Furtado MF, Martins LMP, Lopes-Ferreira M, Santoro ML, Barbaro KC. Enzymatic and immunochemical characterization of Bothrops insularis venom and its neutralization by polyspecific Bothrops antivenom. Toxicon 2007; 49:982-94. [PMID: 17382362 DOI: 10.1016/j.toxicon.2007.01.009] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2006] [Revised: 01/16/2007] [Accepted: 01/17/2007] [Indexed: 11/24/2022]
Abstract
Herein we compared the biological activities of Bothrops insularis and Bothrops jararaca venoms as well as their neutralization by polyspecific Bothrops antivenom (PBA). On account of that, we investigated their antigenic cross-reactivity and the neutralization of lethal, myotoxic and defibrinating activities by polyspecific and species-specific antivenoms. Silver-stained SDS-PAGE gels evidenced many common bands particularly above 47 kDa between B. jararaca and B. insularis venoms. However, some protein bands between 46 and 28 kDa were observed exclusively in B. jararaca venom. Both venoms presented gelatinolytic, caseinolytic, fibrinogenolytic and phospholipase A(2) activities. No hyaluronidase activity was detected in both venoms by zymography. Polyspecific and species-specific antivenoms showed similar titers to B. jararaca and B. insularis venoms by ELISA, and recognized similar components by immunoblotting. The PBA was effective in neutralizing the lethal, myotoxic and defibrinating activities of both venoms as well as to abrogate microcirculatory disturbances induced by B. insularis venom. No statistically significant difference was observed for minimal hemorrhagic doses between both venoms. Antigenic cross-reactivity was evident between both venoms. Since toxic and enzymatic activities were similar, we speculate that B. insularis venoms can induce a local damage in humans comparable to that observed in other Bothrops venoms. Besides, the PBA was effective in neutralizing the toxic activities of B. insularis venom.
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Affiliation(s)
- M S Lira
- Laboratory of Immunopathology, Butantan Institute, Av Vital Brazil 1500, 05503-900, São Paulo, SP, Brazil
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Quesada L, Sevcik C, Lomonte B, Rojas E, Gutiérrez JM. Pharmacokinetics of whole IgG equine antivenom: comparison between normal and envenomed rabbits. Toxicon 2006; 48:255-63. [PMID: 16863656 DOI: 10.1016/j.toxicon.2006.05.010] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2006] [Revised: 05/29/2006] [Accepted: 05/31/2006] [Indexed: 11/22/2022]
Abstract
Pharmacokinetics of antivenoms has been mainly studied in normal animals, whereas very little is known on pharmacokinetics in envenomed animals. The aim of this study was to compare pharmacokinetic parameters of whole IgG equine antivenom in normal rabbits and in rabbits suffering a moderate envenoming by intramuscular injection of the venom of the viperid snake Bothriechis lateralis, which induces drastic microvascular alterations. Anti-Micrurus nigrocinctus antivenom was used, instead of polyvalent (Crotalinae) antivenom, to avoid the formation of toxin-antibody complexes which may alter antivenom pharmacokinetics. It was thus possible to study the effect of vascular alterations, i.e., edema and hemorrhage, induced by the venom on IgG antivenom distribution and elimination. An ELISA was utilized to quantify equine IgG antivenom concentration in rabbit serum. In addition, the amount of IgG antivenom extravasated in injected muscles was also determined. Results indicate that there were no significant differences, between control and envenomed rabbits, in any of the pharmacokinetic parameters investigated, thus suggesting that a moderate envenoming by this viperid species does not alter the pharmacokinetics of IgG antivenom. A significantly higher amount of antivenom IgG was observed in muscle from envenomed rabbits than in muscle from control animals. However, this corresponds to a low percentage of the administered antivenom and, therefore, this increased local extravasation does not have a significant impact in the overall antivenom pharmacokinetics.
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Affiliation(s)
- Lil Quesada
- Facultad de Microbiología, Instituto Clodomiro Picado, Universidad de Costa Rica, San José, Costa Rica
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Bonavita AGC, da Costa AS, Pires ALA, Neves-Ferreira AGC, Perales J, Cordeiro RSB, Martins MA, e Silva PMR. Contribution of mast cells and snake venom metalloproteinases to the hyperalgesia induced by Bothrops jararaca venom in rats. Toxicon 2006; 47:885-93. [PMID: 16730041 DOI: 10.1016/j.toxicon.2006.02.017] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2005] [Revised: 02/24/2006] [Accepted: 02/24/2006] [Indexed: 11/29/2022]
Abstract
Bothrops jararaca venom (Bjv) is known to induce local inflammation and severe pain. Since, mast cells are able to secrete mediators involved in algesic processes, in this study we examined the putative role of these cells in the hyperalgesia triggered by Bjv in the rat paw. We noted that treatment with mast cell stabilizer sodium cromoglicate as well as with histamine and 5-hydroxytriptamine receptor antagonists meclizine and methysergide, respectively, inhibited the Bjv-induced hyperalgesia. In addition, we showed that stimulation of isolated rat peritoneal mast cells with Bjv in vitro resulted in the release of stored and neo-generated inflammatory mediators such as histamine and leukotriene C(4), respectively. Bjv-induced histamine secretion was clearly sensitive to treatment with sodium cromoglicate and sodium nedocromil. We further observed that metalloproteinase inhibitors 1,10-phenantroline and DM43 inhibited mast cell degranulation in vitro, under conditions where inhibitors of phospholipase A(2) as well as of serine- and cysteine-proteinases were inactive. Altogether, our findings indicate that mast cells seem to contribute to the hyperalgesia caused by Bjv in the rat paw, and also provide evidence that this response might be dependent on the ability of the Bjv to activate directly mast cells.
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Affiliation(s)
- André Gustavo C Bonavita
- Laboratory of Inflammation, Department of Physiology and Pharmacodynamics, Oswaldo Cruz Institute, Oswaldo Cruz Foundation, Av. Brasil, CEP 21040-900, 4365 Rio de Janeiro, Brazil
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Gutiérrez JM, Rucavado A, Escalante T, Díaz C. Hemorrhage induced by snake venom metalloproteinases: biochemical and biophysical mechanisms involved in microvessel damage. Toxicon 2005; 45:997-1011. [PMID: 15922771 DOI: 10.1016/j.toxicon.2005.02.029] [Citation(s) in RCA: 305] [Impact Index Per Article: 16.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/19/2004] [Indexed: 10/25/2022]
Abstract
Zinc-dependent metalloproteinases are responsible for the hemorrhagic activity characteristic of viperid snake venoms. Snake venom metalloproteinases (SVMPs) are classified in various groups (P-I-IV), according to their domain composition. P-III SVMPs, comprising metalloproteinase, disintegrin-like and cysteine-rich domains, exert more potent hemorrhagic activity than P-I SVMPs, which present only the metalloproteinase domain. SVMPs degrade various components of the basement membrane and are also able to hydrolyze endothelial cell membrane proteins, such as integrins and cadherins, involved in cell-matrix and cell-cell adhesion. In addition, disintegrin-like and cysteine-rich domains interact with endothelial cell integrins, interfering with their adhesion to extracellular matrix. Hemorrhage induced by SVMPs is an extremely rapid event in vivo, with capillary endothelial cells showing drastic structural alterations within few minutes. In contrast, observations in cell culture conditions do not evidence such rapid endothelial cell damage. Instead, the main effect is detachment and rounding of these cells; it is only after several hours of incubation that cells show evidence of apoptotic damage. This apparent discrepancy between in vivo and in vitro observations can be explained if biophysical forces operating on microvessels in vivo are taken into consideration. It is proposed that SVMP-induced hemorrhage occurs in vivo by a 'two-step' mechanism. Initially, SVMPs degrade basement membrane and adhesion proteins, thus weakening the capillary wall and perturbing the interactions between endothelial cells and the basement membrane. Then, transmural pressure acting on the weakened capillary wall causes distention. As a consequence, endothelial cells become very thin, until the integrity of the capillary wall is lost at some points, where extravasation occurs. In addition, endothelial cells become more susceptible to blood flow-dependent shear stress, which further contributes to capillary wall disruption.
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Affiliation(s)
- José María Gutiérrez
- Instituto Clodomiro Picado, Facultad de Microbiología, Universidad de Costa Rica, San José, Costa Rica.
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de Castro I, Burdmann EA, Seguro AC, Yu L. Bothrops venom induces direct renal tubular injury: role for lipid peroxidation and prevention by antivenom. Toxicon 2004; 43:833-9. [PMID: 15284018 DOI: 10.1016/j.toxicon.2004.03.015] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2003] [Revised: 03/17/2004] [Accepted: 03/22/2004] [Indexed: 11/19/2022]
Abstract
Acute renal failure (ARF) is one of the most serious complications of Bothrops snakebites. Pathogenesis of ARF in snakebite envenomation may involve hemodynamic disturbances, immunologic reactions and direct nephrotoxicity. This study aimed at evaluating Bothrops jararaca venom direct toxicity on isolated rat renal proximal tubules (PT). PT was kept oxygenated and subjected to hypoxia (H, 15 min) and reoxygenation (R, 45 min). Bothropic antivenom effects, role of extracellular calcium and peroxide production were also evaluated. Cell injury was determined by LDH release (%) and peroxide production determined by xylenol-orange method. B. jararaca venom caused tubular injury (LDH 31.6 vs. 17.2%, P <0.05), which was prevented by simultaneous or delayed antivenom administration, but not with low extracellular calcium medium. Venom increased tubules peroxide production: 2.21 vs. 1.27 microM/mg protein (P <0.05) which was also prevented by antivenom administration. Venom toxic concentration did not enhance H/R injury. In contrast, non-toxic venom concentration afforded protection (LDH 41.3 vs. 51.5%, P <0.05). In conclusion, B. jararaca venom caused direct injury to normoxic renal tubules, but not to hypoxic/reoxygenated tubules. Tubular toxicity is independent of extracellular calcium and mediated in part by lipid peroxidation. Venom induced tubular injury was prevented by simultaneous or delayed antivenom administration.
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Affiliation(s)
- Isac de Castro
- Nephrology-LIM 12, School of Medicine, University of São Paulo, Av. Dr. Arnaldo 455-3 degrees A-S. 3310, São Paulo 01246-903, Brazil
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de Camargo Gonçalves LR, Chudzinski-Tavassi AM. High molecular mass kininogen inhibits metalloproteinases of Bothrops jararaca snake venom. Biochem Biophys Res Commun 2004; 318:53-9. [PMID: 15110752 DOI: 10.1016/j.bbrc.2004.03.182] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2004] [Indexed: 11/15/2022]
Abstract
High molecular mass kininogen (HK) purified from Bothrops jararaca (Bj) plasma was tested on activities of the Bj venom in vivo and in vitro. Results showed that, when incubated with BjHK, the Bj venom presented inhibition on hemorrhagic, edema forming, myotoxic, and coagulant activities. It is well known that metalloproteinases are directly or indirectly involved in these activities. Similarly, human HK inhibits the hemorrhagic effect of the Bj venom as well as hemorrhagic and enzymatic effects of jararhagin, a hemorrhagic metalloproteinase isolated from Bj venom. Complex between HK and jararhagin was not detected by gel filtration. Nevertheless, the inhibitory effect of the hemorrhagic activity of the venom was only partial when HK was pre-incubated with 0.4mM ZnCl(2) or with 0.45mM CaCl(2). These data suggest that the inhibitory effect depends, at least partially, on the competition for ions between kininogen and metalloproteinases of the venom.
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