Recovery from severe H7N9 disease is associated with diverse response mechanisms dominated by CD8⁺ T cells.

Recovery from severe H7N9 disease is associated with diverse response mechanisms dominated by CD8⁺ T cells.
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严重 H7N9 疾病的恢复与 CD8 T 细胞主导的多种反应机制有关

DOI:
10.1038/ncomms7833
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发表时间:
2015-05-13
影响因子:
16.6
通讯作者:
Xu, Jianqing
Xu, Jianqing
中科院分区:
综合性期刊1区
文献类型:
--
作者:
Wang, Zhongfang;Wan, Yanmin;Qiu, Chenli;Quinones-Parra, Sergio;Zhu, Zhaoqin;Loh, Liyen;Tian, Di;Ren, Yanqin;Hu, Yunwen;Zhang, Xiaoyan;Thomas, Paul G.;Inouye, Michael;Doherty, Peter C.;Kedzierska, Katherine;Xu, Jianqing

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禽源性A/H7N9流感病毒导致高入院率(99%)和高死亡率(30%),从快速康复到延长住院时间,最终的结果是有利的。使用多色检测来监测适应性和先天免疫,在这里,我们剖析了H7N9疾病和恢复范围内不同效应机制的动态出现。我们发现多种反应机制有助于解决问题和生存。在2-3周内出院的患者具有早期显著的H7N9特异性CD 8 + T细胞应答,而住院时间延长的个体同时具有晚期的CD 8 +/CD 4 + T细胞和抗体募集(到第4周恢复),甚至更晚由显著的NK细胞应答增强(恢复30天)。相比之下,那些死亡的人具有最低的流感特异性免疫力,并且几乎没有T细胞活化的证据。我们的研究说明了强大的CD 8 + T细胞记忆对于预防新出现的甲型流感病毒引起的严重流感疾病的重要性。
The avian origin A/H7N9 influenza virus causes high admission rates (99%) and mortality (30%), with ultimately favourable outcomes ranging from rapid recovery to prolonged hospitalization. Using a multicolour assay for monitoring adaptive and innate immunity, here we dissect the kinetic emergence of different effector mechanisms across the spectrum of H7N9 disease and recovery. We find that a diversity of response mechanisms contribute to resolution and survival. Patients discharged within 2–3 weeks have early prominent H7N9-specific CD8+ T-cell responses, while individuals with prolonged hospital stays have late recruitment of CD8+/CD4+ T cells and antibodies simultaneously (recovery by week 4), augmented even later by prominent NK cell responses (recovery 30 days). In contrast, those who succumbed have minimal influenza-specific immunity and little evidence of T-cell activation. Our study illustrates the importance of robust CD8+ T-cell memory for protection against severe influenza disease caused by newly emerging influenza A viruses.
人类感染新型禽源甲型流感 (H7N9) 病毒。
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