Baudou FG, Charó NL, Scheidegger MA, Stupirski JC, Pérez Sáez JM, Troncoso MF, Massaro M, de Roodt AR, De Marzi MC, Schattner M, Rabinovich GA. A C-type lectin from Bothrops jararacussu venom reprograms endothelial cell biology.
Angiogenesis 2024;
27:583-586. [PMID:
38878257 DOI:
10.1007/s10456-024-09931-x]
[Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2024] [Accepted: 05/24/2024] [Indexed: 11/15/2024] [Imported: 02/09/2025]
Abstract
Snake venoms are intricate mixtures of enzymes and bioactive factors that induce a range of detrimental effects in afflicted hosts. Certain Viperids, including Bothrops jararacussu, harbor C-type lectins (CTLs) known for their modulation of a variety of host cellular responses. In this study, we isolated and purified BjcuL, a CTL from B. jararacussu venom and investigated its impact on endothelial cell behavior, contrasting it with human galectin-1 (Gal-1), a prototype member of the galectin family with shared β-galactoside-binding activity. We found that BjcuL binds to human dermal microvascular endothelial cells (HMECs) in a concentration- and carbohydrate-dependent fashion and reprograms the function of these cells, favoring a pro-inflammatory and pro-coagulant endothelial phenotype. In light of the quest for universal antagonists capable of mitigating the harmful consequences of snake venoms, BjcuL emerges as a promising target to be blocked in order to regulate pathological endothelial cell responses.
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