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Int. J. Mol. Sci. 2012, 13(9), 10697-10721; doi:10.3390/ijms130910697

Cell Signaling through Protein Kinase C Oxidation and Activation

1
Institute of Medical Biochemistry, Federal University of Rio de Janeiro (UFRJ), CCS, Bloco H, Cidade Universitária, Ilha do Fundão, 21941-590, Rio de Janeiro, RJ, Brazil
2
Institute of National Science and Technology of Structural Biology and Bioimage (INCTBEB), CCS, Bloco H, Cidade Universitária, Ilha do Fundão, 21941-590, Rio de Janeiro, RJ, Brazil
*
Author to whom correspondence should be addressed.
Received: 20 June 2012 / Revised: 2 August 2012 / Accepted: 13 August 2012 / Published: 24 August 2012
(This article belongs to the Special Issue Advances in Free Radicals in Biology and Medicine)
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Abstract

Due to the growing importance of cellular signaling mediated by reactive oxygen species (ROS), proteins that are reversibly modulated by these reactant molecules are of high interest. In this context, protein kinases and phosphatases, which act coordinately in the regulation of signal transduction through the phosphorylation and dephosphorylation of target proteins, have been described to be key elements in ROS-mediated signaling events. The major mechanism by which these proteins may be modified by oxidation involves the presence of key redox-sensitive cysteine residues. Protein kinase C (PKC) is involved in a variety of cellular signaling pathways. These proteins have been shown to contain a unique structural feature that is susceptible to oxidative modification. A large number of scientific studies have highlighted the importance of ROS as a second messenger in numerous cellular processes, including cell proliferation, gene expression, adhesion, differentiation, senescence, and apoptosis. In this context, the goal of this review is to discuss the mechanisms by which PKCs are modulated by ROS and how these processes are involved in the cellular response.
Keywords: protein kinase C; reactive oxygen species; cell signaling protein kinase C; reactive oxygen species; cell signaling
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MDPI and ACS Style

Cosentino-Gomes, D.; Rocco-Machado, N.; Meyer-Fernandes, J.R. Cell Signaling through Protein Kinase C Oxidation and Activation. Int. J. Mol. Sci. 2012, 13, 10697-10721.

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