A Ligand for the Murine NK Activation Receptor Ly-49D: Activation of Tolerized NK Cells from β2-Microglobulin- Deficient Mice1

A Ligand for the Murine NK Activation Receptor Ly-49D: Activation of Tolerized NK Cells from β2-Microglobulin- Deficient Mice1
复制标题

鼠 NK 激活受体 Ly-49D 的配体:激活 β2-微球蛋白缺陷小鼠的耐受 NK 细胞1

DOI:
--
复制
发表时间:
2002
影响因子:
4.4
通讯作者:
W. Yokoyama
W. Yokoyama
中科院分区:
医学2区
文献类型:
--
作者:
H. Furukawa;K. Iizuka;Jennifer Poursine‐Laurent;N. Shastri;W. Yokoyama

文献摘要

参考文献

被引文献

相似文献

小鼠NK细胞表达识别靶细胞MHC I类分子的抑制性NK受体和不太明确的激活受体。C57 BL/6 NK细胞上的Ly-49 D活化受体识别中国仓鼠卵巢细胞并触发自然杀伤。在这项研究中,我们证明了中国仓鼠经典的MHC I类分子是Ly-49 D在报告基因测定系统以及在NK细胞杀伤试验中的配体。当与中国仓鼠β2-微球蛋白(β 2 m)一起表达时,Ly-49 D识别中国仓鼠I类分子的能力优于鼠β 2 m。然而,Ly-49 D识别H-2Dd仍然存在争议,因为我们无法证明先前报道的特异性。使用这种单配体-单受体识别系统,首次在β 2 m缺陷小鼠中耐受的NK细胞中研究了NK活化受体的功能。令人惊讶的是,在β 2 m缺陷型小鼠NK细胞中观察到针对配体表达靶标的Ly-49 D杀伤活性,尽管降低,但预期Ly-49 D的“耐受化”功能。这些结果表明,Ly-49 D特异性识别与中国仓鼠β 2 m相关的中国仓鼠MHC I类分子,并表明Ly-49 D NK细胞活化受体在β 2 m缺乏症中不耐受。
Mouse NK cells express inhibitory NK receptors that recognize target cell MHC class I molecules and activation receptors that are less well defined. The Ly-49D activation receptor on C57BL/6 NK cells recognizes Chinese hamster ovary cells and triggers natural killing. In this study, we demonstrate that a Chinese hamster classical MHC class I molecule is the ligand for Ly-49D in a reporter gene assay system as well as in NK cell killing assays. Ly-49D recognizes the Chinese hamster class I molecule better when it is expressed with Chinese hamster β2-microglobulin (β2m) than murine β2m. However, it is still controversial that Ly-49D recognizes H-2Dd, as we were unable to demonstrate the specificity previously reported. Using this one ligand-one receptor recognition system, function of an NK activation receptor was, for the first time, investigated in NK cells that are tolerized in β2m-deficient mice. Surprisingly, Ly-49D-killing activity against ligand-expressing targets was observed with β2m-deficient mouse NK cells, albeit reduced, even though “tolerized” function of Ly-49D was expected. These results indicate that Ly-49D specifically recognizes the Chinese hamster MHC class I molecule associated with Chinese hamster β2m, and indicate that the Ly-49D NK cell activation receptor is not tolerized in β2m deficiency.
CD8 T 细胞对 MHC I 类缺陷骨髓的同种特异性排斥。
DOI: 10.1111/ajt.12525
发表时间: 2014
期刊: American journal of transplantation : official journal of the American Society of Transplantation and the American Society of Transplant Surgeons
影响因子: --
作者:
Haspot,F;Li,HW;Lucas,CL;Fehr,T;Beyaz,S;Sykes,M
通讯作者: Sykes,M
小鼠 NK 细胞 Ly49D 子集的耐受性和同种异体反应性。
DOI: --
发表时间: 1999
期刊: Journal of immunology (Baltimore, Md. : 1950)
影响因子: --
作者:
George,TC;Ortaldo,JR;Lemieux,S;Kumar,V;Bennett,M
通讯作者: Bennett,M
逆转录病毒介导的表达克隆的应用。
DOI: --
发表时间: 1996
期刊: Experimental hematology.
影响因子: --
作者:
Onishi,M;Kinoshita,S;Morikawa,Y;Shibuya,A;Phillips,J;Lanier,LL;Gorman,DM;Nolan,GP;Miyajima,A;Kitamura,T
通讯作者: Kitamura,T
DOI: 10.1073/pnas.89.2.638
发表时间: 1992-01-15
影响因子: 11.1
作者:
GASTINEL, LN;SIMISTER, NE;BJORKMAN, PJ
通讯作者: BJORKMAN, PJ
由小鼠 Ly-49D 受体介导的异种细胞自然杀伤。
DOI: --
发表时间: 1999
期刊: Journal of immunology (Baltimore, Md. : 1950)
影响因子: --
作者:
Nakamura,MC;Naper,C;Niemi,EC;Spusta,SC;Rolstad,B;Butcher,GW;Seaman,WE;Ryan,JC
通讯作者: Ryan,JC