Bo Liu

Publications (2)27.71 Total impact

• Source

  Available from: jem.rupress.org

  Article: A novel subset of CD4+ TH2 memory/effector cells that produce inflammatory IL-17 cytokine and promote the exacerbation of chronic allergic asthma

  Yui-Hsi Wang, Kui Shin Voo, Bo Liu, Chun-Yu Chen, Burcin Uygungil, William Spoede, Jonathan A. Bernstein, David P. Huston, Yong-Jun Liu
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  ABSTRACT: The inflammatory cytokine interleukin (IL)-17 is involved in the pathogenesis of allergic diseases. However, the identity and functions of IL-17–producing T cells during the pathogenesis of allergic diseases remain unclear. Here, we report a novel subset of TH2 memory/effector cells that coexpress the transcription factors GATA3 and RORγt and coproduce TH17 and TH2 cytokines. Classical TH2 memory/effector cells had the potential to produce IL-17 after stimulation with proinflammatory cytokines IL-1β, IL-6, and IL-21. The number of IL-17-TH2 cells was significantly increased in blood of patients with atopic asthma. In a mouse model of allergic lung diseases, IL-17–producing CD4+ TH2 cells were induced in the inflamed lung and persisted as the dominant IL-17–producing T cell population during the chronic stage of asthma. Treating cultured bronchial epithelial cells with IL-17 plus TH2 cytokines induced strong up-regulation of chemokine eotaxin-3, Il8, Mip1b, and Groa gene expression. Compared with classical TH17 and TH2 cells, antigen-specific IL-17–producing TH2 cells induced a profound influx of heterogeneous inflammatory leukocytes and exacerbated asthma. Our findings highlight the plasticity of TH2 memory cells and suggest that IL-17–producing TH2 cells may represent the key pathogenic TH2 cells promoting the exacerbation of allergic asthma.
  Journal of Experimental Medicine 10/2010; 207(11):2479-2491. · 13.85 Impact Factor
• Source

  Available from: Chun-Yu Chen

  Article: A novel subset of CD4(+) T(H)2 memory/effector cells that produce inflammatory IL-17 cytokine and promote the exacerbation of chronic allergic asthma.

  Yui-Hsi Wang, Kui Shin Voo, Bo Liu, Chun-Yu Chen, Burcin Uygungil, William Spoede, Jonathan A Bernstein, David P Huston, Yong-Jun Liu
  [show abstract] [hide abstract]
  ABSTRACT: The inflammatory cytokine interleukin (IL)-17 is involved in the pathogenesis of allergic diseases. However, the identity and functions of IL-17-producing T cells during the pathogenesis of allergic diseases remain unclear. Here, we report a novel subset of T(H)2 memory/effector cells that coexpress the transcription factors GATA3 and RORγt and coproduce T(H)17 and T(H)2 cytokines. Classical T(H)2 memory/effector cells had the potential to produce IL-17 after stimulation with proinflammatory cytokines IL-1β, IL-6, and IL-21. The number of IL-17-T(H)2 cells was significantly increased in blood of patients with atopic asthma. In a mouse model of allergic lung diseases, IL-17-producing CD4(+) T(H)2 cells were induced in the inflamed lung and persisted as the dominant IL-17-producing T cell population during the chronic stage of asthma. Treating cultured bronchial epithelial cells with IL-17 plus T(H)2 cytokines induced strong up-regulation of chemokine eotaxin-3, Il8, Mip1b, and Groa gene expression. Compared with classical T(H)17 and T(H)2 cells, antigen-specific IL-17-producing T(H)2 cells induced a profound influx of heterogeneous inflammatory leukocytes and exacerbated asthma. Our findings highlight the plasticity of T(H)2 memory cells and suggest that IL-17-producing T(H)2 cells may represent the key pathogenic T(H)2 cells promoting the exacerbation of allergic asthma.
  Journal of Experimental Medicine 10/2010; 207(11):2479-91. · 13.85 Impact Factor