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  • Title: Involvement of plasmacytoid dendritic cells in human diseases.
    Author: Jahnsen FL, Farkas L, Lund-Johansen F, Brandtzaeg P.
    Journal: Hum Immunol; 2002 Dec; 63(12):1201-5. PubMed ID: 12480264.
    Abstract:
    In vitro studies have reported that plasmacytoid dendritic cells (PDCs) exert multiple functions, including production of interferon (IFN)-alpha as effector cells and regulation of T-cell responses as mature DCs. Here we review recent data obtained in situ showing that PDCs accumulate in lesions of type I IFN-related disorders (virus infections and lupus erythematosus), Th2 cell-dominated allergic reactions, and ovarian carcinoma. These results demonstrate that PDCs do migrate to peripheral tissues during inflammation, which lends further support to the view that PDCs most likely are important players in innate and adaptive immunity in vivo. Future research should aim at defining the exact pathogenic or defense roles of PDCs in such disorders and determine whether these cells are potential targets for therapeutic intervention in microbial infections, allergy, autoimmunity, or cancer.
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