Mucosal Viral Infection In Situ Provide Innate Immune Protection against Cutting Edge: Plasmacytoid Dendritic Cells
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Plasmacytoid dendritic cells in angiolymphoid hyperplasia with eosinophilia
Background: Angiolymphoid hyperplasia with eosinophilia (ALHE) is characterized by irregularly-shaped blood vessels with an inflammatory infiltrate. While absent from normal skin, plasmacytoid dendritic cells (pDCs) infiltrate the skin upon injury and during several infectious, inflammatory, and neoplastic entities. In addition to providing anti-viral resistance, pDCs link the innate and adapti...
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Herpes simplex virus types 1 and 2 (HSV-1 and HSV-2) are the most common cause of genital ulceration in humans worldwide. Typically, HSV-1 and 2 infections via mucosal route result in a lifelong latent infection after peripheral replication in mucosal tissues, thereby providing potential transmission to neighbor hosts in response to reactivation. To break the transmission cycle, immunoprophylac...
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The mitochondrial antiviral signaling protein (MAVS) mediates the activation of NFkappaB and IRFs and the induction of interferons in response to viral infection. In vitro studies have also suggested that MAVS is required for interferon induction by cytosolic DNA, but the in vivo evidence is lacking. By generating MAVS-deficient mice, here we show that loss of MAVS abolished viral induction of ...
متن کاملPlasmacytoid dendritic cells act as the most competent cell type in linking antiviral innate and adaptive immune responses.
Appropriate in vivo control of plasmacytoid dendritic cell (pDC) recruitment and activation is a fundamental requirement for defense against viral infection. During this process, a pivotal event that influences the outcome of viral infection is the production of high levels of type I interferon by pDCs. In particular, recent research findings showed that pDCs not only shape the nature of innate...
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TANK-binding kinase 1 (TBK1) and inducible IkappaB kinase (IKK-i) are involved in the activation of transcription factors inducing the production of type I IFNs. Although TBK1, but not IKK-i, is critical for LPS-induced IFN induction, the role of these kinases in the responses against viral infection is yet to be determined. In this study, we show that type I IFN production against various RNA ...
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تاریخ انتشار 2006