The Scientific World Journal

The Scientific World Journal / 2002 / Article

Mini-Review Article | Open Access

Volume 2 |Article ID 423749 | https://doi.org/10.1100/tsw.2002.106

Satva P. Kunapuli, "P2 Receptors and Platelet Activation", The Scientific World Journal, vol. 2, Article ID 423749, 10 pages, 2002. https://doi.org/10.1100/tsw.2002.106

P2 Receptors and Platelet Activation

Received25 Sep 2001
Revised14 Dec 2001
Accepted26 Dec 2001

Abstract

Adenosine diphosphate (ADP) plays a crucial role in hemostasis and thrombosis by activating platelets. In platelets, the classical P2T receptor is now resolved into three P2 receptor subtypes: the P2Y1, the P2Y12, and the P2X1 receptors. Both pharmacological and molecular biological approaches have confirmed the role of the P2Y1 and P2Y12 receptors in the ADP-induced platelet fibrinogen receptor activation. The P2Y1 and the P2X1 receptors independently contribute to platelet shape change. Whereas the P2Y12 receptor mediates the potentiation of dense granule release reaction, both the P2Y1 and P2Y12 receptors play an important role in the ADP-induced phospholipase A2 activation. The signaling events downstream of these receptors leading to the physiological effects remain elusive, and they are yet to be delineated.


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