Platelet thiol-containing proteins

Platelet thiol-containing proteins are a functional class of proteins characterized by the presence of reactive sulfhydryl groups or the ability to catalyze thiol-disulfide exchange (Essex, 2004). This group includes the protein disulfide isomerase (PDI) family (e.g., PDI, ERp5, ERp57) and surface receptors like integrin alphaIIbbeta3 and P2Y12, which require thiol-mediated modifications for their activation (Essex, 2004; Jordan et al., 2005). These proteins are essential for the dynamic process of platelet activation, secretion, and thrombus formation, acting as redox-sensitive switches that respond to the vascular environment (Zhou et al., 2015). In cardiovascular diseases, the dysregulation of these thiol-mediated pathways promotes pathological thrombosis (PubMed, 2015). Therapeutic strategies targeting these proteins, particularly PDI inhibitors like rutin and isoquercetin, aim to provide antithrombotic efficacy with a potentially lower risk of bleeding compared to standard-of-care antiplatelet drugs (Jasuja et al., 2012; PubMed, 2015). Research continues to explore the specificity of these targets to minimize systemic side effects while effectively preventing arterial and venous thrombosis (Zhou et al., 2015).

Other names

Platelet surface thiolsPlatelet sulfhydryl groupsPlatelet thiol isomerasesPlatelet redox-sensitive proteins

Inhibition of thiol-disulfide exchange or covalent modification of sulfhydryl groups to prevent platelet activation and aggregation.