期刊
IMMUNOLOGICAL REVIEWS
卷 249, 期 -, 页码 195-204出版社
WILEY-BLACKWELL
DOI: 10.1111/j.1600-065X.2012.01143.x
关键词
autophagy; metabolism; homeostasis; lymphocyte signaling
类别
资金
- NIH [AI73947, AI074754, AI074944]
Over the life span of a T lymphocyte, from thymic development to death, it is subjected to a variety of stresses and stimuli. Upon receipt of each stress or stimulus, a potentially life-changing fate decision must be made, namely, whether to commit to a form of programmed cell death or to make the necessary adaptations to effectively deal with the changing environment. In our laboratory, we have identified several stresses that a T lymphocyte will encounter during a normal life span. Our studies have focused on how T cells utilize autophagy to get a grasp on the situation, or in cases in which survival is untenable, how T cells use autophagy to hasten their demise. This review focuses on the functions of T-cell autophagy in maintaining homeostasis, eliminating excess or dangerous levels of mitochondria, trimming levels of endoplasmic reticulum, and promoting a healthy metabolic level to allow cells to perform as productive components of the immune system. In addition, the use of autophagy signaling molecules to perform autophagy-independent tasks involved in the maintenance of immune homeostasis is discussed.
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