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Xiao, Yichuan; Zou, Qiang; Xie, Xiaoping; Liu, Ting; Li, Haiyan S; Jie, Zuliang; Jin, Jin; Hu, Hongbo; Manyam, Ganiraju; Zhang, Li; Cheng, Xuhong; Wang, Hui; Marie, Isabelle; Levy, David E; Watowich, Stephanie S; Sun, Shao-Cong
The Journal of experimental medicine, 05/2017, Letnik: 214, Številka: 5Journal Article
Dendritic cells (DCs) are crucial for mediating immune responses but, when deregulated, also contribute to immunological disorders, such as autoimmunity. The molecular mechanism underlying the function of DCs is incompletely understood. In this study, we have identified TANK-binding kinase 1 (TBK1), a master innate immune kinase, as an important regulator of DC function. DC-specific deletion of causes T cell activation and autoimmune symptoms and also enhances antitumor immunity in animal models of cancer immunotherapy. The TBK1-deficient DCs have up-regulated expression of co-stimulatory molecules and increased T cell-priming activity. We further demonstrate that TBK1 negatively regulates the induction of a subset of genes by type I interferon receptor (IFNAR). Deletion of IFNAR1 could largely prevent aberrant T cell activation and autoimmunity in DC-conditional knockout mice. These findings identify a DC-specific function of TBK1 in the maintenance of immune homeostasis and tolerance.
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JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
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Vir: Osebne bibliografije
in: SICRIS
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