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. 2022 Mar 28;13:856713. doi: 10.3389/fimmu.2022.856713

Figure 2.

Figure 2

Indirect platelet-virus interactions. Several virus families interact with platelets via the formation of virus-IgG complexes that are recognized by platelet FcγRIIA. Antibodies against viral proteins may also act as autoantibodies by targeting platelet membrane components. Additionally, infection of endothelial cells induces expression of adhesive molecules that promote platelet adhesion. Infected endothelial cells also facilitate pro-thrombinase activity to modulate platelet activation. E-sel, E-selectin; FcγRIIA, Immunoglobulin γ Fc region receptor IIA; FN, Fibronectin; GP, Glycoprotein; HTNV, Hantaan virus; IAV, Influenza A virus; IgG, Immunoglobulin G; NS1, Non-structural protein 1; PDI, Protein disulfide isomerase; PGI2: Prostaglandin I2 (prostacyclin); PUUV, Puumala virus; vWF, von Willebrand factor.