CD4(+)CD25(+) immunoregulatory T cells: gene expression analysis reveals a functional role for the glucocorticoid-induced TNF receptor.
摘要：
CD4 +CD25 + immunoregulatory T cells represent a unique lineage of thymic-derived cells that potently suppress both in vitro and in vivo effector T cell function. We analyzed CD4 +CD25 + and CD4 +CD25 − T cells by DNA microarray, identifying 29 genes differentially expressed in the resting subpopulations, and 77 that were differentially expressed following activation. Most of these genes were elevated in the CD4 +CD25 + population, suggesting a previously activated phenotype. Among these were a number of genes that antagonize signaling, including members of the SOCS family, which may contribute to their anergic phenotype. Multiple cell surface receptors also had increased expression in CD4 +CD25 + cells, including GITR, a member of the TNF receptor superfamily. Importantly, antibodies to GITR abrogated suppression, demonstrating a functional role for this receptor in regulating the CD4 +CD25 + T cell subset.
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关键词：
Animals Mice, Inbred BALB C Mice, Inbred C57BL Mice CD4-Positive T-Lymphocytes Receptors, Cell Surface Integrin alpha Chains Receptors, Interleukin-2 Receptors, Tumor Necrosis Factor Receptors, Nerve Growth Factor
DOI：
10.1016/S1074-7613(02)00280-7
被引量：
年份：
2002
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