2015
DOI: 10.1016/j.biologicals.2014.09.001
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New immunization protocol to produce crotalic antivenom combining Crotalus durissus terrificus venom and its PLA2

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Cited by 14 publications
(5 citation statements)
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“…Adequate treatments for snakebite envenomations are critically dependent on the ability of antivenoms to reverse venom-induced coagulopathy, myotoxicity, hypotensive shock and other effects (Fusco et al, 2015). It is known that, although antivenom therapy is effective against systemic toxic effects of envenomations, the conventional antivenoms present several limitations, such as the low efficacy against local effects induced by PLA 2 and PLA 2 -like myotoxins, poorly neutralizing these toxins mainly due to the discrepancies between the pharmacokinetic profiles of low molecular mass toxins and antivenoms (Guti errez et al, 2003;Prado et al, 2016).…”
Section: Resultsmentioning
confidence: 99%
“…Adequate treatments for snakebite envenomations are critically dependent on the ability of antivenoms to reverse venom-induced coagulopathy, myotoxicity, hypotensive shock and other effects (Fusco et al, 2015). It is known that, although antivenom therapy is effective against systemic toxic effects of envenomations, the conventional antivenoms present several limitations, such as the low efficacy against local effects induced by PLA 2 and PLA 2 -like myotoxins, poorly neutralizing these toxins mainly due to the discrepancies between the pharmacokinetic profiles of low molecular mass toxins and antivenoms (Guti errez et al, 2003;Prado et al, 2016).…”
Section: Resultsmentioning
confidence: 99%
“…Thus, the neutralizing capacity of commercial antivenoms, for example, against C. durissus venom, rests mainly on the neutralization of crotoxin [13]. Recent studies have sought to improve antivenoms by enriching venoms with native CB [14]. That is, Fusco et al, (2015) [14] have proposed a new model to produce antibodies against Crotalus venoms.…”
Section: Introductionmentioning
confidence: 99%
“…Recent studies have sought to improve antivenoms by enriching venoms with native CB [14]. That is, Fusco et al, (2015) [14] have proposed a new model to produce antibodies against Crotalus venoms. They administered the purified Crotoxin B first and then the complete venom.…”
Section: Introductionmentioning
confidence: 99%
“…Apesar de tal substituição ocasionar a redução da atividade enzimática, as Lys49-PLA2 possuem efeitos farmacológicos por mecanismos não relacionados com a hidrólise de fosfolipídios (TEIXEIRA et al, 2003;LOMONTE;GUTIÉRREZ, 2011). Portanto, independentemente de sua função catalítica primária, no envenenamento ofídico, as PLA2s podem induzir vários efeitos fisiopatológicos, como mionecrose, anticoagulação, inibição da agregação plaquetária, neurotoxicidade, cardiotoxicidade, hipotensão arterial, aumento da permeabilidade microvascular e formação de edema (HARRIS et al, 2000;SINGH et al, 2000;TEIXEIRA et al, 2003;KINI, 2005b;LOMONTE;GUTIÉRREZ, 2011;RODRÍGUEZ et al, 2020) Os danos locais causados pelas PLA2s estão relacionados aos efeitos inflamatórios e são um dos responsáveis pela letalidade e efeitos irreversíveis do envenenamento, como perda de membros e incapacitação do indivíduo (HABERMANN; BREITHAUPT, 1978;GUTIÉRREZ et al, 2008;FUSCO et al, 2015). A capacidade das PLA2s causarem edema foi primeiramente demonstrada em PLA2s ofídicas, após provocarem edema de pata e degranulação de mastócitos in vitro (DAMERAU et al, 1975).…”
Section: Fosfolipases A2s (Pla2s)unclassified
“…No entanto, as ações farmacológicas da PLA2s não estão relacionadas apenas à sua atividade enzimática, sendo responsáveis pela miotoxicidade, neurotoxicidade e distúrbios inflamatórios no envenenamento por serpentes. Esta proteína também é responsável por danos locais aos tecidos, letalidade e efeitos irreversíveis, como danos musculares e perda de membros, levando à incapacitação individual (HABERMANN; BREITHAUPT, 1978;GUTIÉRREZ et al, 2008;FUSCO et al, 2015).…”
Section: Capítulounclassified