The chemokine receptor CCR5 plays a key role in the early memory CD8+ T cell response to respiratory virus infections.

The chemokine receptor CCR5 plays a key role in the early memory CD8+ T cell response to respiratory virus infections.
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DOI:
10.1016/j.immuni.2008.05.011
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发表时间:
2008-07-18
期刊:
影响因子:
32.4
通讯作者:
Woodland, David L.
Woodland, David L.
中科院分区:
医学1区
文献类型:
--
作者:
Kohlmeier, Jacob E.;Miller, Shannon C.;Smith, Joanna;Lu, Bao;Gerard, Craig;Cookenham, Tres;Roberts, Alan D.;Woodland, David L.

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外周组织对入侵病原体的先天识别导致在回忆反应的早期阶段将循环记忆 CD8+ T 细胞募集到局部炎症部位。然而,人们对控制这些细胞快速募集到外周部位的机制知之甚少,特别是与呼吸道的流感和副流感感染相关的机制。在这项研究中,我们证明了 CCR5 在病毒攻击期间加速记忆 CD8+ T 细胞向肺气道募集的关键作用。最重要的是,CCR5 缺陷导致表达关键效应分子的记忆 T 细胞的募集减少,并在二次反应的初始阶段损害对病毒复制的控制。这些数据强调了早期记忆 T 细胞募集对于肺部细胞免疫功效的至关重要性。
Innate recognition of invading pathogens in peripheral tissues results in the recruitment of circulating memory CD8+ T cells to sites of localized inflammation during the early phase of a recall response. However, the mechanisms that control the rapid recruitment of these cells to peripheral sites are poorly understood, particularly in relation to influenza and parainfluenza infections of the respiratory tract. In this study, we demonstrate a crucial role for CCR5 in the accelerated recruitment of memory CD8+ T cells to the lung airways during virus challenge. Most importantly, CCR5 deficiency resulted in decreased recruitment of memory T cells expressing key effector molecules and impaired control of virus replication during the initial stages of a secondary response. These data highlight the critical importance of early memory T cell recruitment for the efficacy of cellular immunity in the lung.
迁移动力学和1型和2型CD8效应细胞的最终目的地预测防止肺病毒感染的保护。
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