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Am J Physiol Heart Circ Physiol. 2001 Apr;280(4):H1434-41.

Use of functional proteomics to investigate PKC epsilon-mediated cardioprotection: the signaling module hypothesis.

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Department of Physiology and Biophysics, University of Louisville and Department of Veterans Affairs, Louisville, Kentucky 40202-1783, USA.


The characterization of biological processes on the basis of alterations in the cellular proteins, or "proteomic" analysis, is a powerful approach that may be adopted to decipher the signaling mechanisms that underlie various pathophysiological conditions, such as ischemic heart disease. This review represents a prospectus for the implementation of proteomic analyses to delineate the myocardial intracellular signaling events that evoke cardioprotection against ischemic injury. In concert with this, the manifestation of a protective phenotype has recently been shown to involve dynamic modulation of protein kinase C-epsilon (PKC epsilon) signaling complexes (Ping P, Zhang J, Pierce WM Jr, and Bolli R. Circ Res 88: 59--62, 2001). Accordingly, "the signaling module hypothesis" is formulated as a plausible mechanism by which multipurpose stress-activated proteins and signaling kinases may function collectively to facilitate the genesis of cardioprotection.

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