Abstract
Snake venoms are very complex mixtures of biologically active proteins and peptides that may affect hemostasis in many ways, by activating or inhibiting coagulant factors or platelets, or by disrupting endothelium. They have been classified into various families, including serine proteases, metalloproteinases, C-type lectins, disintegrins and phospholipases. The various members of a particular family act selectively on different blood coagulation factors, blood cells or tissues. Venom proteins affect platelet function in particular by binding to and blocking or clustering and activating receptors or by cleaving receptors or von Willebrand factor. They may also activate protease-activated receptors or modulate ADP release or thromboxane A2 formation. L-amino acid oxidases activate platelets by producing H2O2. Many of these purified components are valuable tools in platelet research, providing new information about receptor function and signaling.
Keywords: Disintegrins, serine proteases, metalloproteinases, phospholipases, C-type lectins, L-amino acid oxidases
Current Pharmaceutical Design
Title: Snake Venom Proteins Affecting Platelets and Their Applications to Anti-Thrombotic Research
Volume: 13 Issue: 28
Author(s): Kenneth J. Clemetson, Qiumin Lu and Jeannine M. Clemetson
Affiliation:
Keywords: Disintegrins, serine proteases, metalloproteinases, phospholipases, C-type lectins, L-amino acid oxidases
Abstract: Snake venoms are very complex mixtures of biologically active proteins and peptides that may affect hemostasis in many ways, by activating or inhibiting coagulant factors or platelets, or by disrupting endothelium. They have been classified into various families, including serine proteases, metalloproteinases, C-type lectins, disintegrins and phospholipases. The various members of a particular family act selectively on different blood coagulation factors, blood cells or tissues. Venom proteins affect platelet function in particular by binding to and blocking or clustering and activating receptors or by cleaving receptors or von Willebrand factor. They may also activate protease-activated receptors or modulate ADP release or thromboxane A2 formation. L-amino acid oxidases activate platelets by producing H2O2. Many of these purified components are valuable tools in platelet research, providing new information about receptor function and signaling.
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Cite this article as:
Clemetson J. Kenneth, Lu Qiumin and Clemetson M. Jeannine, Snake Venom Proteins Affecting Platelets and Their Applications to Anti-Thrombotic Research, Current Pharmaceutical Design 2007; 13 (28) . https://dx.doi.org/10.2174/138161207782023702
DOI https://dx.doi.org/10.2174/138161207782023702 |
Print ISSN 1381-6128 |
Publisher Name Bentham Science Publisher |
Online ISSN 1873-4286 |
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