Homeostatic competition among T cells revealed by conditional inactivation of the mouse Cd4 gene.
Homeostatic competition among T cells revealed by conditional inactivation of the mouse Cd4 gene.
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DOI:
10.1084/jem.194.12.1721
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发表时间:
2001-12-17
期刊:
影响因子:
--
通讯作者:
Killeen N
中科院分区:
文献类型:
--
作者:
Wang Q;Strong J;Killeen N
Absence of CD4 impairs the efficiency of T cell receptor (TCR) signaling in response to major histocompatibility complex (MHC) class II–presented peptides. Here we use mice carrying a conditional Cd4 allele to study the consequences of impaired TCR signaling after the completion of thymocyte development. We show that loss of CD4 decreases the steady-state proliferation of T cells as monitored by in vivo labeling with bromo-deoxyuridine. Moreover, T cells lacking CD4 compete poorly with CD4-expressing T cells during proliferative expansion after transfer into lymphopenic recipients. The data suggest that T cells compete with one another during homeostatic proliferation, and indicate that the basis of this competition is TCR signaling.
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DOI:
10.1084/jem.186.8.1223
发表时间:
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期刊:
The Journal of experimental medicine
影响因子:
--
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通讯作者:
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影响因子:
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