Signals involved in CD4/CD8 lineage commitment: Current concepts and potential mechanisms

被引:21
作者
Singer, A [1 ]
Bosselut, R [1 ]
Bhandoola, A [1 ]
机构
[1] NCI, Expt Immunol Branch, NIH, Bethesda, MD 20892 USA
关键词
thymus; T cell development; coreceptor; signaling;
D O I
10.1006/smim.1999.0183
中图分类号
R392 [医学免疫学]; Q939.91 [免疫学];
学科分类号
100102 ;
摘要
A competent immune system requires that mature T cells express TCR and CD4/CD8 coreceptors with matching MHC specificities. Such matching of TCR and coreceptor specificity is induced in the thymus at the CD4(+)8(+) stage of development and is referred ed to as lineage commitment. The process by which immature CD4(+)8(+) thymocytes are signaled to undergo lineage commitment continues to be the subject of intense investigation and discussion. Here, we review the major models by which lineage commitment is thought to occur and discuss the experimental results on which they were based.
引用
收藏
页码:273 / 281
页数:9
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