《Nature,12月24日,Longitudinal transcriptome analyses show robust T cell immunity during recovery from COVID-19》

  • 来源专题:COVID-19科研动态监测
  • 编译者: zhangmin
  • 发布时间:2021-02-01
  • Longitudinal transcriptome analyses show robust T cell immunity during recovery from COVID-19

    Hong-Yi Zheng, Min Xu, Cui-Xian Yang, Ren-Rong Tian, Mi Zhang, Jian-Jian Li, Xi-Cheng Wang, Zhao-Li Ding, Gui-Mei Li, Xiao-Lu Li, Yu-Qi He, Xing-Qi Dong, Yong-Gang Yao & Yong-Tang Zheng

    Signal Transduction and Targeted Therapy volume 5, Article number: 294 (2020)

    Abstract

    Understanding the processes of immune regulation in patients infected with the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is crucial for improving treatment. Here, we performed longitudinal whole-transcriptome RNA sequencing on peripheral blood mononuclear cell (PBMC) samples from 18 patients with coronavirus disease 2019 (COVID-19) during their treatment, convalescence, and rehabilitation. After analyzing the regulatory networks of differentially expressed messenger RNAs (mRNAs), microRNAs (miRNAs) and long non-coding RNAs (lncRNAs) between the different clinical stages, we found that humoral immunity and type I interferon response were significantly downregulated, while robust T-cell activation and differentiation at the whole transcriptome level constituted the main events that occurred during recovery from COVID-19. The formation of this T cell immune response might be driven by the activation of activating protein-1 (AP-1) related signaling pathway and was weakly affected by other clinical features. These findings uncovered the dynamic pattern of immune responses and indicated the key role of T cell immunity in the creation of immune protection against this disease.

  • 原文来源:https://www.nature.com/articles/s41392-020-00457-4
相关报告
  • 《12月24日_COVID-19恢复过程中出现强烈的T细胞免疫反应》

    • 来源专题:COVID-19科研动态监测
    • 编译者:zhangmin
    • 发布时间:2021-02-01
    • Signal Transduction and Targeted Therapy期刊于12月24日发表了中国科学院昆明动物研究所和云南省传染病医院等的文章“Longitudinal transcriptome analyses show robust T cell immunity during recovery from COVID-19”,描述了COVID-19恢复过程中强大的T细胞免疫力。 文章称,了解感染SARS-CoV-2的患者的免疫调节过程对于改善治疗至关重要。该研究团队对18例COVID-19患者在治疗期、恢复期和康复期的外周血单核细胞(PBMC)样本进行了纵向全转录组RNA测序。在分析了不同临床阶段之间差异表达的信使RNA(mRNA)、小分子RNA(miRNA)和长非编码RNA(lncRNA)的调控网络后,研究人员发现体液免疫和I型干扰素反应显著下调,而在整个转录组水平上的强大的T细胞激活和分化是COVID-19恢复过程中发生的主要事件。这种T细胞免疫反应的形成可能是由激活蛋白-1(AP-1)相关信号通路的激活驱动的,受其他临床特征的影响较弱。这些发现揭示了免疫应答的动态模式,并表明了T细胞免疫在针对这种疾病的免疫保护中的关键作用。 来源:https://www.nature.com/articles/s41392-020-00457-4
  • 《Cell,8月14日,Robust T cell immunity in convalescent individuals with asymptomatic or mild COVID-19》

    • 来源专题:COVID-19科研动态监测
    • 编译者:zhangmin
    • 发布时间:2020-08-18
    • Robust T cell immunity in convalescent individuals with asymptomatic or mild COVID-19 Takuya Sekine 13 André Perez-Potti 13 Olga Rivera-Ballesteros 13 Hans-Gustaf Ljunggren 13 Soo Aleman 13 Marcus Buggert 13, 15 Show all authors Show footnotes Open AccessPublished:August 14, 2020DOI:https://doi.org/10.1016/j.cell.2020.08.017 Summary SARS-CoV-2-specific memory T cells will likely prove critical for long-term immune protection against COVID-19. We here systematically mapped the functional and phenotypic landscape of SARS-CoV-2-specific T cell responses in unexposed individuals, exposed family members, and individuals with acute or convalescent COVID-19. Acute phase SARS-CoV-2-specific T cells displayed a highly activated cytotoxic phenotype that correlated with various clinical markers of disease severity, whereas convalescent phase SARS-CoV-2-specific T cells were polyfunctional and displayed a stem-like memory phenotype. Importantly, SARS-CoV-2-specific T cells were detectable in antibody-seronegative exposed family members and convalescent individuals with a history of asymptomatic and mild COVID-19. Our collective dataset shows that SARS-CoV-2 elicits robust, broad and highly functional memory T cell responses, suggesting that natural exposure or infection may prevent recurrent episodes of severe COVID-19.