Cyclic guanosine monophosphate signaling and phosphodiesterase-5 inhibitors in cardioprotection.

Kukreja, Rakesh C; Salloum, Fadi N; Das, Anindita · J Am Coll Cardiol · 2012

review · Level V

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Abstract

Cyclic guanosine monophosphate (cGMP) is an important intracellular second messenger that mediates multiple tissue and cellular responses. The cGMP pathway is a key element in the pathophysiology of the heart and its modulation by drugs such as phosphodiesterase (PDE)-5 inhibitors and guanylate cyclase activators may represent a promising therapeutic approach for acute myocardial infarction, cardiac hypertrophy, heart failure, and doxorubicin cardiotoxicity in patients. In addition, PDE-5 inhibitors may prove to be innovative therapeutic agents for enhancing the chemosensitivity of doxorubicin while providing concurrent cardiac benefit.

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