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
作者:
H. Furukawa;K. Iizuka;Jennifer Poursine‐Laurent;N. Shastri;W. Yokoyama
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.
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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
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
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
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