Primate-specific regulation of natural killer cells.

Primate-specific regulation of natural killer cells.
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DOI:
10.1111/j.1600-0684.2010.00432.x
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发表时间:
2010-08
影响因子:
0.7
通讯作者:
Guethlein LA
Guethlein LA
中科院分区:
农林科学4区
文献类型:
--
作者:
Parham P;Abi-Rached L;Matevosyan L;Moesta AK;Norman PJ;Older Aguilar AM;Guethlein LA

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自然杀伤 (NK) 细胞是循环淋巴细胞,在先天免疫和胎盘生殖中发挥作用。调节 NK 细胞的发育和功能的是一系列可变和保守的受体,它们与主要组织相容性复合体 (MHC) I 类分子相互作用。凝集素样和免疫球蛋白样受体家族分别由自然杀伤 (NKC) 和白细胞受体 (LRC) 复合物中的基因决定。由于免疫和生殖系统承受着强大的、不同的压力,NK 细胞受体及其 MHC I 类配体迅速进化,高度多样化,并表现出显着的物种特异性差异。调节人类 NK 细胞发育和功能的杀伤细胞免疫球蛋白样受体 (KIR) 的可变多态性家族是最近在猿灵长类动物进化过程中从单拷贝基因进化而来的。我们对代表性物种中的 KIR 和 MHC I 类基因的研究表明,这两个不相关但功能上相互交织的基因复合体是如何共同进化的。在人类中,KIR 和 HLA I 类因子的组合与传染病有关,包括 HIV/AIDS、自身免疫、生殖成功和治疗性移植的结果。人类 NK 细胞受体和 MHC I 类配体与小鼠对应物之间存在的非同寻常且意想不到的差异,可以部分解释在寻找人类疾病信息丰富的小鼠模型方面遇到的困难。非人类灵长类动物模型具有更大的潜力,但要实现其前景,首先需要对非人类灵长类动物物种中 KIR 和 MHC 变异的遗传学和功能进行更完整的定义,其水平与人类物种所达到的水平相当。
Natural killer (NK) cells are circulating lymphocytes that function in innate immunity and placental reproduction. Regulating both development and function of NK cells is an array of variable and conserved receptors that interact with major histocompatibility complex (MHC) class I molecules. Families of lectin-like and immunoglobulin-like receptors are determined by genes in the natural killer (NKC) and leukocyte receptor (LRC) complexes, respectively. As a consequence of the strong, varying pressures on the immune and reproductive systems, NK cell receptors and their MHC class I ligands evolve rapidly, are highly diverse, and exhibit dramatic species-specific differences. The variable, polymorphic family of killer cell immunoglobulin-like receptors (KIR) that regulate human NK cell development and function evolved recently, from a single-copy gene during the evolution of simian primates. Our studies of KIR and MHC class I genes in representative species show how these two unlinked but functionally intertwined genetic complexes have co-evolved. In humans, combinations of KIR and HLA class I factors are associated with infectious diseases, including HIV/AIDS, autoimmunity, reproductive success and the outcome of therapeutic transplantation. The extraordinary, and unanticipated, divergence of human NK cell receptors and MHC class I ligands from their mouse counterparts can in part explain the difficulties experienced in finding informative mouse models for human diseases. Non-human primate models have far greater potential, but to realize their promise will first require more complete definition of the genetics and function of KIR and MHC variation in non-human primate species, at a level comparable to that achieved for the human species.
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期刊: PLoS genetics
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期刊: Journal of immunology (Baltimore, Md. : 1950)
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发表时间: 2009-03-15
期刊: Journal of immunology (Baltimore, Md. : 1950)
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作者:
Bostik P;Kobkitjaroen J;Tang W;Villinger F;Pereira LE;Little DM;Stephenson ST;Bouzyk M;Ansari AA
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DOI: 10.1007/s002510050675
发表时间: 1999-07-01
期刊: IMMUNOGENETICS
影响因子: 3.2
作者:
Barten, R;Trowsdale, J
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DOI: 10.1084/jem.184.2.735
发表时间: 1996-08-01
影响因子: 15.3
作者:
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通讯作者: Parham, P