Targeting Phosphodiesterases in Anti-platelet Therapy

  • Matthew T. Rondina
  • Andrew S. WeyrichEmail author
Part of the Handbook of Experimental Pharmacology book series (HEP, volume 210)


There are two primary modes of platelet inhibition: blockade of membrane receptors or neutralization of intracellular pathways. Both means of inhibition have proven benefits in the prevention and resolution of atherothrombotic events. With regard to intracellular inhibition, phosphodiesterases (PDEs) are fundamental for platelet function. Platelets possess several PDEs (PDE2, PDE3 and PDE5) that catalyze the hydrolysis of cyclic adenosine 3′-5′-monophosphate (cAMP) and cyclic guanosine 3′-5′-monophosphate (cGMP), thereby limiting the levels of intracellular nucleotides. PDE inhibitors, such as cilostazol and dipyridamole, dampen platelet function by increasing cAMP and cGMP levels. This review focuses on the roles of PDE inhibitors in modulating platelet function, with particular attention paid to drugs that have anti-platelet clinical indications.


Phosphodiesterase Platelet Thrombosis Anti-Platelet Agents Cilostazol Dipyridamole 


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© Springer-Verlag Berlin Heidelberg 2012

Authors and Affiliations

  1. 1.The Molecular Medicine Program and Department of Internal MedicineUniversity of UtahSalt Lake CityUSA
  2. 2.Eccles Institute of Human GeneticsUniversity of UtahSalt Lake CityUSA

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