Cross-neutralization of the coagulant activity of Crotalus durissus terrificus venom from the northeast of Argentina by bivalent bothropic antivenom

• Published in: Journal of Venomous Animals and Toxins including Tropical Diseases
• Main Authors: JP Rodríguez, CC Gay, LS Fusco, MC Gauna, OC Acosta, LC Leiva
• Format: Article in Journal/Newspaper
• Language: English
• Published: SciELO 2012
• Subjects: thrombin-like enzyme; snake venom; antivenoms; immunological cross-reaction; Arctic medicine. Tropical medicine; RC955-962; Toxicology. Poisons; RA1190-1270; Zoology; QL1-991; Arctic; Argentina
• Online Access: https://doi.org/10.1590/S1678-91992012000100015; https://doaj.org/article/9eb652599e2d4751b556a531cd8ea66e

Cross-neutralization of Crotalus durissus terrificus venom coagulant activity was tested using bivalent horse antivenom against Bothrops alternatus and Bothrops diporus venoms. Our in vitro and in vivo experiments showed that bothropic antivenom neutralizes the thrombin-like activity of crotalic snake venom and this cross-reaction was demonstrated by immunoassays either with whole venom or a purified thrombin-like enzyme. These results suggest common antigenic properties and, consequently, similar molecular structure among venom thrombin-like enzymes. Besides, they provide information that could be further used in the development of new antivenom formulations.