Memory CD4 T cell-mediated immunity against influenza A virus: more than a little helpful.

Memory CD4 T cell-mediated immunity against influenza A virus: more than a little helpful.
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DOI:
10.1007/s00005-013-0236-z
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发表时间:
2013-10
影响因子:
3.2
通讯作者:
Strutt, Tara M.
Strutt, Tara M.
中科院分区:
医学4区
文献类型:
--
作者:
McKinstry, K. Kai;Dutton, Richard W.;Swain, Susan L.;Strutt, Tara M.

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最近的观察发现了多种途径,CD4 T细胞可以促进针对微生物威胁的保护性免疫反应。因此,将记忆性CD4 T细胞的产生纳入疫苗策略提出了一种有吸引力的方法,以提高对几种重要的人类病原体的免疫力,特别是那些单独的抗体应答不足以赋予长期免疫力的病原体。在这里,我们回顾了记忆CD4 T细胞如何提供对流感病毒的保护。我们讨论了在动物模型中观察到的保护性记忆CD4 T细胞反应的复杂性,以及将这些观察结果转化为临床的潜在挑战。具体来说,我们专注于如何更好地理解响应细胞的器官特异性异质性,并定义多种保护相关性,可能会改善疫苗产生的记忆CD4 T细胞,以更好地预防季节性流感,更重要的是,大流行性流感。
Recent observations have uncovered multiple pathways whereby CD4 T cells can contribute to protective immune responses against microbial threats. Incorporating the generation of memory CD4 T cells into vaccine strategies thus presents an attractive approach towards improving immunity against several important human pathogens, especially those against which antibody responses alone are inadequate to confer long-term immunity. Here, we review how memory CD4 T cells provide protection against influenza viruses. We discuss the complexities of protective memory CD4 T cell responses observed in animal models and the potential challenges of translating these observations into the clinic. Specifically, we concentrate on how better understanding organ-specific heterogeneity of responding cells and defining multiple correlates of protection might improve vaccine-generated memory CD4 T cells to better protect against seasonal, and more importantly, pandemic influenza.
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