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- W2982477718 abstract "Abstract Dendritic cells (DCs) are critical players in skin homeostasis. A subset of mannose receptor (CD206)–expressing monocyte-derived DCs was found in skin, and their migratory counterpart is present in skin-draining lymph nodes (sdLNs). Skin CD206+ DCs were shown to upregulate MHC class II (MHCII) progressively, raising the question of whether this feature affects their biology. In this study, we assessed the role of MHCII regulation in the development and migration of these cells in mouse models expressing differential MHCII levels. Using CD206 as a surrogate marker, we found that skin CD206+ DCs develop in an MHCII-independent manner. However, their migration to sdLNs was affected by overexpression rather than absence or lower expression of MHCII. Accordingly, B16 tumor growth was exacerbated in mice overexpressing MHCII in the absence of ubiquitination. Mechanistically, CD206+ DCs from these mice showed decreased IRF4 and CCR7 expression. LPS, which is known to promote monocyte-derived DC recruitment to sdLNs, partially improved these defects. However, GM-CSF delivery restored CD206+ DC migration by promoting IRF4 expression. Collectively, these data show that MHCII downregulation is crucial for IRF4-dependent migration of CD206+ DCs to sdLNs in health and disease." @default.
- W2982477718 created "2019-11-08" @default.
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- W2982477718 date "2019-12-01" @default.
- W2982477718 modified "2023-10-01" @default.
- W2982477718 title "Downregulation of MHC Class II by Ubiquitination Is Required for the Migration of CD206+ Dendritic Cells to Skin-Draining Lymph Nodes" @default.
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- W2982477718 doi "https://doi.org/10.4049/jimmunol.1900593" @default.
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- W2982477718 hasPublicationYear "2019" @default.
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