Costimulatory molecule DNAM-1 is essential for optimal differentiation of memory natural killer cells during mouse cytomegalovirus infection.

Costimulatory molecule DNAM-1 is essential for optimal differentiation of memory natural killer cells during mouse cytomegalovirus infection.
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DOI:
10.1016/j.immuni.2013.12.011
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发表时间:
2014-02-20
期刊:
影响因子:
32.4
通讯作者:
Lanier, Lewis L.
Lanier, Lewis L.
中科院分区:
医学1区
文献类型:
--
作者:
Nabekura, Tsukasa;Kanaya, Minoru;Shibuya, Akira;Fu, Guo;Gascoigne, Nicholas R. J.;Lanier, Lewis L.

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最近的研究表明,自然杀伤(NK)细胞具有适应性免疫功能。在这里,我们研究了在巨细胞病毒(MCMV)感染的小鼠模型中,共刺激分子DNAM-1在NK细胞分化中的作用。DNAM-1的抗体阻断抑制了病毒感染期间MCMV特异性Ly 49 H+细胞的扩增,并抑制了记忆NK细胞的产生。类似地,DNAM-1缺陷型(Cd 226 −/−)Ly 49 H + NK细胞在扩增和分化为记忆细胞方面表现出内在缺陷。Src家族酪氨酸激酶Fyn和丝氨酸-苏氨酸蛋白激酶C亚型eta(PKCη)通过DNAM-1的信号传导在MCMV特异性效应和记忆NK细胞的产生中发挥不同的作用。因此,通过DNAM-1和Ly 49 H的协同信号传导是NK细胞介导的宿主防御MCMV感染所必需的。
Recent studies demonstrate that natural killer (NK) cells have adaptive immune features. Here, we investigated the role of the costimulatory molecule DNAM-1 in the differentiation of NK cells in a mouse model of cytomegalovirus (MCMV) infection. Antibody blockade of DNAM-1 suppressed the expansion of MCMV-specific Ly49H+ cells during viral infection and inhibited the generation of memory NK cells. Similarly, DNAM-1-deficient (Cd226−/−) Ly49H+ NK cells exhibited intrinsic defects in expansion and differentiation into memory cells. Src-family tyrosine kinase Fyn and serine -threonine protein kinase C isoform eta (PKCη) signaling through DNAM-1 played distinct roles in the generation of MCMV-specific effector and memory NK cells. Thus, cooperative signaling through DNAM-1 and Ly49H are required for NK cell-mediated host defense against MCMV infection.
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