Shared and distinct transcriptional programs underlie the hybrid nature of iNKT cells.

Shared and distinct transcriptional programs underlie the hybrid nature of iNKT cells.
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DOI:
10.1038/ni.2490
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发表时间:
2013-01
期刊:
影响因子:
30.5
通讯作者:
--
中科院分区:
医学1区
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--
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不变的自然杀伤T(iNKT)细胞是作为免疫应答的关键调节剂的先天性样T淋巴细胞。为了更好地表征该群体,我们分析了个体发育期间和外周亚群中的iNKT细胞基因表达,作为免疫基因组计划(ImmGen)的一部分。高分辨率比较转录分析定义了发育和亚群特异性iNKT细胞基因表达程序。此外,发现iNKT细胞与自然杀伤(NK)细胞共享广泛的转录程序,与主要组织相容性复合体(MHC)限制性T细胞共享的转录程序的大小相似。引人注目的是,NK-iNKT程序也在γδT细胞和活化后的适应性T细胞中组成性地运行。总之,我们的研究结果突出了一个核心效应程序在先天性和适应性淋巴细胞中的明显调节。
Invariant natural killer T (iNKT) cells are innate-like T lymphocytes that act as critical regulators of the immune response. To better characterize this population, we profiled iNKT cell gene expression during ontogeny and in peripheral subsets as part of the Immunological Genome Project (ImmGen). High-resolution comparative transcriptional analyses defined developmental and subset-specific iNKT cell gene expression programs. In addition, iNKT cells were found to share an extensive transcriptional program with natural killer (NK) cells, similar in magnitude to that shared with major histocompatibility complex (MHC)-restricted T cells. Strikingly, the NK- iNKT program also operated constitutively in γδT cells and in adaptive T cells following activation. Together, our findings highlight a core effector program regulated distinctly in innate and adaptive lymphocytes.
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