Vis-à-Vis in the NKC: Genetically Linked Natural Killer Cell Receptor/Ligand Pairs in the Natural Killer Gene Complex (NKC)

Vis-à-Vis in the NKC: Genetically Linked Natural Killer Cell Receptor/Ligand Pairs in the Natural Killer Gene Complex (NKC)
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NKC 中的 Vis-à-Vis:自然杀伤基因复合体 (NKC) 中基因相关的自然杀伤细胞受体/配体对

DOI:
10.1159/000324112
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发表时间:
2011
影响因子:
5.3
通讯作者:
A. Steinle
A. Steinle
中科院分区:
医学2区
文献类型:
--
作者:
Vogler;A. Steinle

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自然杀伤基因复合物(NKC)编码几十种C型凝集素样受体,这些受体以各种方式调节NK细胞和其他细胞毒性淋巴细胞的反应性,这取决于细胞环境。其中包括C型凝集素样受体,如NKG 2D、CD 94/NKG 2A和鼠Ly 49受体,它们与主要组织相容性复合体(MHC)I类家族的细胞表面糖蛋白结合,从而有助于检测应激细胞或表现出异常MHC I类表达的细胞。相比之下,NKRP 1受体,包括原型NK1.1不与具有MHC I类折叠的配体结合,而是与同样的C型凝集素样CLEC 2糖蛋白相互作用。值得注意的是,CLEC 2和NKRP 1分子不仅共享相同的折叠,而且在NKC中也遗传连锁。最近的研究工作开始系统地阐明许多NKRP 1和CLEC 2家族成员在啮齿动物中的表达和功能,并揭示了以前未注意到的人类相应的受体/配体对。在这里,我们提供了一个快照的NKRP 1家族的受体和他们的基因连接CLEC 2配体在小鼠和人的当前知识。
The natural killer gene complex (NKC) encodes several dozens of C-type lectin-like receptors that, in various ways, tune the reactivity of NK cells and other cytotoxic lymphocytes depending on the cellular environment. Among these are C-type lectin-like receptors such as NKG2D, CD94/NKG2A and the murine Ly49 receptors that bind to cell surface glycoproteins of the major histocompatibility complex (MHC) class I family and thereby facilitate detection of stressed cells or cells exhibiting aberrant MHC class I expression. In contrast, NKRP1 receptors including the prototypic NK1.1 do not engage ligands with an MHC class-I-like fold, but rather interact with the likewise C-type lectin-like CLEC2 glycoproteins. Notably, CLEC2 and NKRP1 molecules not only share the same fold, but are also genetically linked in the NKC. Recent research efforts began to systematically elucidate the expression and function of the numerous NKRP1 and CLEC2 family members in rodents and revealed previously unnoticed corresponding receptor/ligand pairs in humans. Here, we provide a snapshot of the current knowledge on receptors of the NKRP1 family and their genetically linked CLEC2 ligands in mouse and man.
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