Role of PD-1 in regulating acute infections.

Role of PD-1 in regulating acute infections.
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DOI:
10.1016/j.coi.2010.03.007
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发表时间:
2010-06
影响因子:
7
通讯作者:
Sharpe AH
Sharpe AH
中科院分区:
医学2区
文献类型:
--
作者:
Brown KE;Freeman GJ;Wherry EJ;Sharpe AH

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虽然PD-1在慢性感染期间抑制免疫力的作用已得到充分证实,但其在急性感染期间的功能尚不清楚。PD-1通路可以在一些急性感染期间抑制CD 8 T细胞反应,并抑制“无助”CD 8记忆T细胞的反应。最近的研究已经揭示了PD-1在先天免疫中的新兴作用,表明PD-1可以限制DC和巨噬细胞的功能以及T细胞非依赖性B细胞应答。因此,PD-1可以影响急性感染期间的适应性免疫反应,尽管这种调节是如何发生的才刚刚开始被理解。
While the role of PD-1 in inhibiting immunity during chronic infections is well established, its functions during acute infections are much less clear. The PD-1 pathway can dampen CD8 T cell responses during some acute infections and restrain responses by “helpless” CD8 memory T cells. An emerging role for PD-1 in innate immunity has been revealed by recent studies showing that PD-1 can limit function of DC and macrophages as well as T cell independent B cell responses. Thus, PD-1 can influence adaptive immune responses during acute infections, though precisely how this regulation occurs is only just beginning to be appreciated.
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