期刊
FREE RADICAL BIOLOGY AND MEDICINE
卷 37, 期 8, 页码 1144-1151出版社
ELSEVIER SCIENCE INC
DOI: 10.1016/j.freeradbiomed.2004.05.029
关键词
T lymphocytes; reactive oxygen species; signal transduction; T cell receptor; free radicals
In the immune system, much of the focus on reactive oxygen species (ROS) has been regarding their role in antimicrobial defense as part of the innate immune system. In addition to this role, it is now becoming clear that ROS are used by cells of the adaptive immune system as regulators of signal transduction by cell surface receptors. The activation of T lymphocytes through their specific antigen receptor [T cell receptor (TCR)] is vital in regulating the immune response. Much experimental evidence has suggested that activation of T cells is redox dependent and recent studies have shown that engagement of the TCR induces rapid production of ROS. This review examines the evidence for TCR-stimulated generation of ROS and discusses the role(s) of receptor-stimulated ROS production in T cell signal transduction and gene expression. (C) 2004 Elsevier Inc. All rights reserved.
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