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This Article Full Text Full Text (PDF) All Versions of this Article: ERC-09-0068v1 16/3/773    most recent Alert me when this article is cited Alert me if a correction is posted Services Similar articles in this journal Similar articles in PubMed Alert me to new issues of the journal Download to citation manager Google Scholar Articles by Kirschner, L. S Articles by Mahoney, E. PubMed PubMed Citation Articles by Kirschner, L. S Articles by Mahoney, E.

Division of Endocrinology, Diabetes and Metabolism, Department of Internal Medicine, and Department of Molecular Virology, Immunology and Medical Genetics, The Ohio State University, 420 West 12th Avenue, TMRF 544, Columbus, Ohio 43210, USA

(Correspondence should be addressed to L S Kirschner; Email: lawrence.kirschner{at}osumc.edu)

Protein kinase A (PKA) is an evolutionarily conserved protein which has been studied in model organisms from yeast to man. Although the cAMP–PKA signaling system was the first mammalian second messenger system to be characterized, many aspects of this pathway are still not well understood. Owing to findings over the past decade implicating PKA signaling in endocrine (and other) tumorigenesis, there has been renewed interest in understanding the role of this pathway in physiology, particularly as it pertains to the endocrine system. Because of the availability of genetic tools, mouse modeling has become the pre-eminent system for studying the physiological role of specific genes and gene families as a means to understanding their relationship to human diseases. In this review, we will summarize the current data regarding mouse models that have targeted the PKA signaling system. These data have led to a better understanding of both the complexity and the subtlety of PKA signaling, and point the way for future studies, which may help to modulate this pathway for therapeutic effect.