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. 2004 Aug;21(2):279-88.
doi: 10.1016/j.immuni.2004.06.014.

CCR7 governs skin dendritic cell migration under inflammatory and steady-state conditions

Lars Ohl  1 , Mariette Mohaupt, Niklas Czeloth, Gabriele Hintzen, Ziba Kiafard, Jörg Zwirner, Thomas Blankenstein, Golo Henning, Reinhold Förster
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Free article

CCR7 governs skin dendritic cell migration under inflammatory and steady-state conditions

Lars Ohl et al. Immunity. 2004 Aug.
Free article

Abstract

The CC chemokine receptor CCR7 has been identified as a key regulator of homeostatic B and T cell trafficking to secondary lymphoid organs. Data presented here demonstrate that CCR7 is also an essential mediator for entry of both dermal and epidermal dendritic cells (DC) into the lymphatic vessels within the dermis while this receptor is dispensable for the mobilization of Langerhans cells from the epidermis to the dermis. Moreover, a distinct population of CD11c(+)MHCII(high) DC showing low expression of the costimulatory molecules CD40, CD80, and CD86 in wild-type animals was virtually absent in skin-draining lymph nodes of CCR7-deficient mice under steady-state conditions. We provide evidence that these cells represent a semimature population of DC that is capable of initiating T cell proliferation under conditions known to induce tolerance VSports手机版. Thus, our data identify CCR7 as a key regulator that governs trafficking of skin DC under both inflammatory and steady-state conditions. .

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