Cutting edge: NKG2C(hi)CD57+ NK cells respond specifically to acute infection with cytomegalovirus and not Epstein-Barr virus.

Cutting edge: NKG2C(hi)CD57+ NK cells respond specifically to acute infection with cytomegalovirus and not Epstein-Barr virus.
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DOI:
10.4049/jimmunol.1303211
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发表时间:
2014-05-15
期刊:
Journal of immunology (Baltimore, Md. : 1950)
影响因子:
--
通讯作者:
Lanier LL
Lanier LL
中科院分区:
其他
文献类型:
--
作者:
Hendricks DW;Balfour HH Jr;Dunmire SK;Schmeling DO;Hogquist KA;Lanier LL

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巨细胞病毒(CMV)诱导表达高水平活化CD 94-NKG 2C受体的人NK细胞的独特亚群扩增,这些受体在感染控制后持续存在。我们研究了这个亚群是否确实是CMV特异性的,或者也对EB病毒(EBV)的急性感染有反应。在这里,我们描述了一个纵向研究的CMV血清阴性和血清阳性的学生谁是急性感染EB病毒。NKG 2Chi NK亚群不因EBV感染而扩增。然而,EBV感染导致血液中未成熟CD 56 brightCD 16 − NK细胞的绝对数量减少,并且在CMV血清阳性个体中,诱导血液中成熟CD 56 dimNKG 2A + CD 57 + NK细胞的频率增加,并持续到潜伏期。这些结果进一步证明NKG 2C + NK细胞是CMV特异性的,并表明EBV感染改变了血液中NK细胞的库。
Cytomegalovirus (CMV) induces the expansion of a unique subset of human NK cells expressing high levels of the activating CD94-NKG2C receptor that persist after control of the infection. We investigated whether this subset is indeed CMV-specific or is also responsive to acute infection with Epstein-Barr virus (EBV). Here we describe a longitudinal study of CMV-seronegative and -seropositive students who were acutely infected with EBV. The NKG2Chi NK subset was not expanded by EBV infection. However, EBV infection caused a decrease in the absolute number of immature CD56brightCD16− NK cells in the blood, and in CMV-seropositive individuals, induced an increased frequency of mature CD56dimNKG2A+CD57+ NK cells in the blood that persisted into latency. These results provide further evidence that NKG2C+ NK cells are CMV-specific, and suggest that EBV infection alters the repertoire of NK cells in the blood.
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