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Trends Mol Med. 2004 Apr;10(4):179-86.

A new role in hemostasis for the adhesion receptor P-selectin.

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  • 1The CBR Institute for Biomedical Research and Department of Pathology, Harvard Medical School, Boston, MA 02115, USA.


The adhesion receptor P-selectin has long been known to support leukocyte rolling and emigration at sites of inflammation. Recently, P-selectin was also revealed to be a key molecule in hemostasis and thrombosis, mediating platelet rolling, generating procoagulant microparticles containing active tissue factor and enhancing fibrin deposition. Elevated levels of plasma P-selectin are indicative of thrombotic disorders and predictive of future cardiovascular events. Because the interaction between P-selectin and its receptor P-selectin glycoprotein ligand-1 (PSGL-1) represents an important mechanism by which P-selectin induces the formation of procoagulant microparticles and recruits the microparticles to thrombi, anti-thrombotic strategies are currently aimed at inhibiting this interaction. Recent developments also suggest that the procoagulant potential of P-selectin could be used to treat coagulation disorders such as hemophilia A.

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