Lachesis venom toxins

Lachesis venom toxins are a complex mixture of proteins and peptides produced by snakes of the genus Lachesis, commonly known as Bushmasters. These toxins primarily consist of snake venom metalloproteinases (SVMPs), serine proteinases (SVSPs), phospholipases A2 (PLA2), and L-amino acid oxidases (LAAO), which work in concert to cause severe physiological disruption (NCBI: PMC6213745). The biological functions of these toxins include the degradation of extracellular matrix components, interference with the coagulation cascade, and the induction of local tissue necrosis and systemic hemorrhage (PubMed: 15504544). Clinically, envenomation by Lachesis species is distinguished by a combination of proteolytic, hemorrhagic, and unique vagal-like symptoms such as hypotension and diarrhea (StatPearls: Snake Envenomation). These toxins are the therapeutic targets for specific and polyvalent antivenoms, which utilize antibodies to neutralize their toxic effects (WHO: Snake Antivenoms). Additionally, research is ongoing into small-molecule inhibitors like varespladib, which targets PLA2, and various metalloproteinase inhibitors to supplement traditional antivenom therapy (PubMed: 27383169). Understanding the individual roles of these toxins is crucial for developing more effective, targeted therapies for snakebite envenomation.

Other names

Bushmaster venomLachesis muta venomLachesis stenophrys venomLachesis melanocephala venomLachesis acrochorda venom

Neutralization of venom components by specific antibodies (antivenom); competitive inhibition of phospholipase A2 (PLA2) enzymes; inhibition of snake venom metalloproteinases (SVMPs).