Human epidermal Langerhans cells maintain immune homeostasis in skin by activating skin resident regulatory T cells.
Human epidermal Langerhans cells maintain immune homeostasis in skin by activating skin resident regulatory T cells.
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DOI:
10.1016/j.immuni.2012.03.018
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发表时间:
2012-05-25
期刊:
影响因子:
32.4
通讯作者:
Kupper TS
中科院分区:
文献类型:
--
作者:
Seneschal J;Clark RA;Gehad A;Baecher-Allan CM;Kupper TS
Recent discoveries indicate that the skin of a normal individual contains 10-20 billion resident memory T cells ( which include various T helper, T cytotoxic, and T regulatory subsets, that are poised to respond to environmental antigens. Using only autologous human tissues, we report that both in vitro and in vivo, resting epidermal Langerhan cells (LC) selectively and specifically induced the activation and proliferation of skin resident regulatory T cells (Treg), a minor subset of skin resident memory T cells. In the presence of foreign pathogen, however, the same LC activated and induced proliferation of effector memory T (Tem) cells and limited Treg cells activation. These underappreciated properties of LC: namely maintenance of tolerance in normal skin, and activation of protective skin resident memory T cells upon infectious challenge, help clarify the role of LC in skin.
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DOI:
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发表时间:
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期刊:
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影响因子:
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DOI:
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