CD1a autoreactivity: When size does matter.

CD1a autoreactivity: When size does matter.
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CD1a自身反应性:当大小不重要时。

DOI:
10.1084/jem.20210531
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发表时间:
2021-07-05
期刊:
The Journal of experimental medicine
影响因子:
--
通讯作者:
Gapin L
Gapin L
中科院分区:
其他
文献类型:
--
作者:
Gapin L

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CD1a分子捕获可阻止自身反应性T细胞抗原受体结合的脂质类。CD1a自身反应性T细胞在人体循环αβ T细胞中占很大比例,并且似乎在皮肤中富集。它们的自身反应性是如何调节的尚不清楚。在本期JEM中,Cotton et al.(2021. J. Exp. https://doi.org/10.1084/jem.20202699)显示,CD1a分子并不随机测量细胞脂质,而是捕获广泛干扰自身反应性T细胞抗原受体与靶CD1a结合的某些脂质类别。这些发现为操纵CD1a自身反应性T细胞反应提供了新的潜在治疗途径。
CD1a molecules capture lipid classes that can prevent the binding of autoreactive T cell antigen receptors. CD1a-autoreactive T cells represent a significant proportion of circulating αβ T cells in humans and appear to be enriched in the skin. How their autoreactivity is regulated remains unclear. In this issue of JEM, Cotton et al. (2021. J. Exp. Med. https://doi.org/10.1084/jem.20202699) show that CD1a molecules do not randomly survey cellular lipids but instead capture certain lipid classes that broadly interfere with the binding of autoreactive T cell antigen receptors to the target CD1a. These findings provide new potential therapeutic avenues for manipulating CD1a autoreactive T cell responses.
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