First functional and proteomic analysis of Bothrops asper snake venom from Gorgona Island - Colombia, and its comparative characterization with two Colombian Southwest ecoregions

博思罗普 生态区 毒液 蛇毒 环境化 生物 地理 动物 生态学
作者
Eliécer Jiménez–Charris,Alejandro Montoya-Gómez,Jorge Kelvin Torres,Mónica Gómez‐Díaz,Wilmar Bolívar‐García
出处
期刊:Biochimie [Elsevier]
卷期号:194: 19-27 被引量:3
标识
DOI:10.1016/j.biochi.2021.12.005
摘要

Bothrops asper envenoming is a public health problem in tropical regions of Latin America. Bothrops asper has spread until Gorgona Island in the Pacific Colombian Ocean, but its biochemical venom characterization is poorly known. Thus, to increase knowledge on Bothrops species venoms, we developed for the first time the proteomic analysis using a shotgun approach and performed functional evaluations relevant to its toxicity and compared with two Colombian Southwest ecoregions from the Pacific and Western sides. Besides, we evaluated two antivenoms produced in Colombia (INS and PROBIOL) against three B. asper venom ecoregions through the ELISA approach and first-generation antivenom against B. asper from Gorgona Island. The protein components of B. asper from Gorgona Island were assigned to nine known protein families, sharing a conserved compositional pattern with B. asper from the pacific ecoregion. The RP-HPLC and in vitro activity suggest a phenotypic congruence in the expression of PLA2s and metalloproteinases between the B. asper snake venom from Gorgona Island and pacific, but inversely to the Western ecoregion. Additionally, the antivenoms immunoreactivity against the three B. asper lineage venoms was different. The INS displayed higher titers than PROBIOL against all the venoms and exhibited the most effective immunocapturing capacity against the individual components of snake venom from Gorgona Island. The results of this investigation suggest that B. asper from Gorgona Island displayed similar clinical manifestations concerning the Pacific ecoregion, and the immunoreactivity by antivenoms could be used after B. asper envenomation in Gorgona Island, using one of them preferably.

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