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  • Title: Prolactin, dendritic cells, and systemic lupus erythematosus.
    Author: Jara LJ, Benitez G, Medina G.
    Journal: Autoimmun Rev; 2008 Jan; 7(3):251-5. PubMed ID: 18190887.
    Abstract:
    Dendritic cells (DC) play a central role in the induction of autoimmunity in T and B cells. DC express a high level of the major histocompatibility complex that interact with the receptors on T cells. Immature DC present antigens efficiently. Prolactin (PRL) participates in DC maturation. Systemic lupus erythematosus (SLE) is characterized by a loss of tolerance to self-antigens and persistent production of autoantibodies. Serum from SLE patients induces normal monocytes to differentiate into DC in correlation with disease activity depending on the actions of interferon-alpha, immune complexes, PRL, etc. High serum PRL levels have been found in a subset of SLE patients associated with active disease and organ involvement. It is possible that PRL interacts with DC, skewing its function from antigen presentation to a proinflammatory phenotype with high interferon-alpha production. Therefore, SLE is characterized by deficiency of DC functions and abnormal PRL secretion. The relationships between PRL and DC may have a role in the pathogenesis of SLE.
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