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首页> 外文期刊>Trends in immunology >NKT cells in immunoregulation of tumor immunity: a new immunoregulatory axis.
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NKT cells in immunoregulation of tumor immunity: a new immunoregulatory axis.

机译:NKT细胞在肿瘤免疫免疫调节中的作用:一个新的免疫调节轴。

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摘要

CD1d-restricted natural killer T (NKT) cells have at least two subsets: type I, semi-invariant TCRalpha chain-expressing (Valpha14Jalpha18 in mice, Valpha24Jalpha18 in humans), and type II, variable TCRalpha chain-expressing. The protective role of NKT cells in tumor immunosurveillance and immunity has been well documented but paradoxically, there are also studies ascribing a suppressive role to these cells. Recent studies have resolved this paradox by revealing distinct roles for the two types of NKT cells, whereby type I NKT cells enhance anti-tumor responses and type II NKT cells suppress these responses. The finding of cross-regulation between the two types of NKT cells suggests a new immunoregulatory axis. Consideration of the cross-talk of NKT cells along with the well-defined suppression by regulatory T cells could provide new insights into cancer immunotherapy.
机译:限制CD1d的自然杀伤T细胞(NKT)具有至少两个子集:I型,半不变的TCRalpha链表达(小鼠中为Valpha14Jalpha18,人为Valpha24Jalpha18),以及II型,可变TCRalpha链表达。 NKT细胞在肿瘤免疫监测和免疫中的保护作用已得到充分证明,但自相矛盾的是,也有研究表明对这些细胞具有抑制作用。最近的研究通过揭示两种类型的NKT细胞的独特作用解决了这一悖论,即I型NKT细胞增强了抗肿瘤反应,而II型NKT细胞抑制了这些反应。两种类型的NKT细胞之间交叉调节的发现提示了新的免疫调节轴。考虑到NKT细胞的串扰以及调节性T细胞的明确抑制作用,可以为癌症免疫治疗提供新的见识。

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