Styk1 is specifically expressed in NK1.1+ lymphocytes including NK, γδ T, and iNKT cells in mice, but is dispensable for their ontogeny and function

Styk1 is specifically expressed in NK1.1+ lymphocytes including NK, γδ T, and iNKT cells in mice, but is dispensable for their ontogeny and function
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Styk1 在小鼠的 NK1 1 淋巴细胞中特异性表达,包括 NK、γδ T 和 iNKT 细胞,但对于它们的个体发育和功能来说是可有可无的

DOI:
10.1002/eji.201848033
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发表时间:
2019
影响因子:
5.4
通讯作者:
Prinz I
Prinz I
中科院分区:
医学3区
文献类型:
--
作者:
Wilharm A;Sandrock I;Marotel M;Demera A;Naumann R;Walzer T;Prinz I

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先天性T细胞、NK细胞和先天性样淋巴细胞(ILC)共享转录特征,这些转录特征转化为重叠的发育和功能程序。在NK细胞中高度表达但在ILC中不高度表达的基因的一个突出例子是丝氨酸-苏氨酸-酪氨酸激酶1(Styk 1由Styk 1编码)。我们发现Styk 1在杀伤细胞凝集素样受体亚家族B成员1(也称为CD 161或NK 1.1)阳性的淋巴细胞中特异性表达,即在NK细胞、αβ iNKT和γδ NKT细胞谱系中。为了研究Styk 1在NK1.1+先天性T细胞亚群的发育和功能中的作用,我们产生并分析了一种新的Styk 1 nullmutant小鼠系。此外,我们通过对同时产生的转基因Styk 1报告基因小鼠系进行离体分析,证实了Styk 1在γδ NKT细胞和胸腺中的表达,但在外周不变αβ iNKT细胞中没有表达。尽管Styk 1在NK细胞、γδ NKT细胞和胸腺αβ iNKT中有非常特异的表达,但其缺失并不改变这些谱系的稳态和功能。因此,Styk 1表达对NK细胞和选定的NK样先天性T细胞亚群具有特异性,但对其发育和功能具有特异性。
Innate T cells, NK cells, and innate‐like lymphocytes (ILCs) share transcriptional signatures that translate into overlapping developmental and functional programs. A prominent example for genes that are highly expressed in NK cells but not in ILCs is serine‐threonine‐tyrosine kinase 1 (Styk1 encoded byStyk1). We foundStyk1to be specifically expressed in lymphocytes positive for Killer cell lectin‐like receptor subfamily B, member 1, also known as CD161 or NK1.1, i.e. in NK cell, αβ iNKT, and γδ NKT cell lineages. To investigate the role of Styk1 in the development and function of NK1.1+innate T‐cell subsets, we generated and analyzed a novelStyk1nullmutant mouse line. Furthermore, we validatedStyk1expression in γδ NKT cells and in thymic, but not in peripheral invariant αβ iNKT cells through ex vivo analysis of a concomitantly generated transgenicStyk1reporter mouse line. Despite the very specific expression ofStyk1in NK cells, γδ NKT cells, and thymic αβ iNKT, its absence did not alter homeostasis and function of these lineages. Thus, Styk1 expression is specific for NK cells and selected NK‐like innate T‐cell subsets, but dispensable for their development and function.
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