Journal
CURRENT OPINION IN CELL BIOLOGY
Volume 22, Issue 6, Pages 865-871Publisher
CURRENT BIOLOGY LTD
DOI: 10.1016/j.ceb.2010.08.003
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Funding
- NIH [R01 AI63419, AI50506, T32-AI60573]
- National Multiple Sclerosis Foundation
- Arthritis National Research Foundation
- Juvenile Diabetes Research Foundation
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The thymus is an organ vital to proper T cell development, and the regulation of cell survival and death contributes significantly to its efficient function. Vital to many of the developmental processes that occur in the thymus, control over cell survival and death is orchestrated by several signaling processes. In this review, we focus on the regulation of death in early thymocytes known as CD4/CD8 double negative cells, including the roles of interleukin-7 and Bcl-2 family members in this developmental stage. We next consider the survival and death of later thymocytes that express both CD4 and CD8, the 'double-positive' thymocytes. These findings are discussed within the context of recent studies demonstrating the existence of caspase-independent cell death pathways.
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