alexa The regulation and activities of the multifunctional serine threonine kinase Akt PKB.


Journal of Addiction Research & Therapy

Author(s): Kandel ES, Hay N

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Abstract The serine/threonine kinase Akt, or protein kinase B (PKB), has recently been a focus of intense research. It appears that Akt/PKB lies in the crossroads of multiple cellular signaling pathways and acts as a transducer of many functions initiated by growth factor receptors that activate phosphatidylinositol 3-kinase (PI 3-kinase). Akt/PKB is particularly important in mediating several metabolic actions of insulin. Another major activity of Akt/PKB is to mediate cell survival. In addition, the recent discovery of the tumor suppressor PTEN as an antagonist of PI 3-kinase and Akt/PKB kinase activity suggests that Akt/PKB is a critical factor in the genesis of cancer. Thus, elucidation of the mechanisms of Akt/PKB regulation and its physiological functions should be important for the understanding of cellular metabolism, apoptosis, and cancer. Copyright 1999 Academic Press. This article was published in Exp Cell Res and referenced in Journal of Addiction Research & Therapy

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