期刊
SCIENCE
卷 323, 期 5913, 页码 502-505出版社
AMER ASSOC ADVANCEMENT SCIENCE
DOI: 10.1126/science.1163612
关键词
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资金
- Mission Enhancement Program, University of Missouri
- Fundacion Ramon Areces, Spain
- American Cancer Society
- Cancer Research Institute
- Spanish Ministry of Science and Education (MEC) [BFU 2005-02807]
- Novartis
- Roche
- Sybilla (EUFP7)
- Swiss National Science Foundation
Following infection, naive CD8(+) T cells bearing pathogen- specific T cell receptors ( TCRs) differentiate into a mixed population of short- lived effector and long- lived memory T cells to mediate an adaptive immune response. How the TCR regulates memory T cell development has remained elusive. Using a mutant TCR transgenic model, we found that point mutations in the TCR beta transmembrane domain (beta TMD) impair the development and function of CD8(+) memory T cells without affecting primary effector T cell responses. Mutant T cells are deficient in polarizing the TCR and in organizing the nuclear factor kappa B signal at the immunological synapse. Thus, effector and memory states of CD8(+) T cells are separable fates, determined by differential TCR signaling.
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