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Abstract

免疫・神経難治疾患の治療薬開発を促進するインターロイキン18複合体立体構造を解明. 京都大学プレスリリース. 2014-12-16.

Interleukin (IL)-18 is a proinflammatory cytokine that belongs to the IL-1 family and plays an important role in inflammation. The uncontrolled release of this cytokine is associated with severe chronic inflammatory disease. IL-18 forms a signalling complex with the IL-18 receptor α (Rα) and β (Rβ) chains at the plasma membrane, which induces multiple inflammatory cytokines. Here, we present a crystal structure of human IL-18 bound to the two receptor extracellular domains. Generally, the receptors' recognition mode for IL-18 is similar to IL-1β; however, certain notable differences were observed. The architecture of the IL-18 receptor second domain (D2) is unique among the other IL-1R family members, which presumably distinguishes them from the IL-1 receptors that exhibit a more promiscuous ligand recognition mode. The structures and associated biochemical and cellular data should aid in developing novel drugs to neutralize IL-18 activity.

Journal

  • Nature communications

    Nature communications (5), 2014-12-15

    Nature Publishing Group

Codes

  • NII Article ID (NAID)
    120005540871
  • Text Lang
    ENG
  • Article Type
    journal article
  • ISSN
    2041-1723
  • Data Source
    IR 
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