Chemokine-dependent T cell migration requires aquaporin-3-mediated hydrogen peroxide uptake.

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Chemokine-dependent trafficking is indispensable for the effector function of antigen-experienced T cells during immune responses. In this study, we report that the water/glycerol channel aquaporin-3 (AQP3) is expressed on T cells and regulates their trafficking in cutaneous immune reactions. T cell migration toward chemokines is dependent on AQP3-mediated hydrogen peroxide (H(2)O(2)) uptake but not the canonical water/glycerol transport. AQP3-mediated H(2)O(2) transport is essential for the activation of the Rho family GTPase Cdc42 and the subsequent actin dynamics. Coincidentally, AQP3-deficient mice are defective in the development of hapten-induced contact hypersensitivity, which is attributed to the impaired trafficking of antigen-primed T cells to the hapten-challenged skin. We therefore suggest that AQP3-mediated H(2)O(2) uptake is required for chemokine-dependent T cell migration in sufficient immune response.

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詳細情報 詳細情報について

  • CRID
    1050282810729970688
  • NII論文ID
    120005054804
  • NII書誌ID
    AA00697559
  • ISSN
    15409538
  • HANDLE
    2433/166329
  • 本文言語コード
    en
  • 資料種別
    journal article
  • データソース種別
    • IRDB
    • CiNii Articles

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