Extent of T cell receptor ligation can determine the functional differentiation of naive CD4+ T cells.

Extent of T cell receptor ligation can determine the functional differentiation of naive CD4+ T cells.
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DOI:
10.1084/jem.182.5.1591
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发表时间:
1995-11-01
期刊:
The Journal of experimental medicine
影响因子:
--
通讯作者:
Bottomly K
Bottomly K
中科院分区:
其他
文献类型:
--
作者:
Constant S;Pfeiffer C;Woodard A;Pasqualini T;Bottomly K

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初始CD4 + T细胞可分化为主要参与体液免疫的细胞,即2型辅助性T细胞(Th2),或参与细胞介导免疫的细胞,即1型辅助性T细胞(Th1)。在本报告中,我们表明,当携带转基因编码的T细胞受体的CD4 + T细胞暴露于高剂量抗原时,可诱导其分化为产生大量干扰素γ的类Th1细胞,而相同肽段的低剂量则诱导具有相同T细胞受体的细胞分化为产生大量白细胞介素4的类Th2细胞。因此,抗原剂量是可控制初始CD4 + T细胞分化命运的一个因素。
Naive CD4+ T cells can differentiate into cells predominantly involved in humoral immunity, known as T helper type 2 cells (Th2), or cells involved in cell-mediated immunity, known as Th1 cells. In this report, we show that priming of CD4+ T cells bearing a transgene-encoded T cell receptor can lead to differentiation into Th1-like cells producing abundant interferon gamma when the cells are exposed to high antigen doses, while low doses of the same peptide induce cells with the same T cell receptor to differentiate into Th2-like cells producing abundant interleukin 4. Thus antigen dose is one factor that can control the differentiation fate of a naive CD4+ T cell.
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