کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
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3391485 | 1221052 | 2009 | 8 صفحه PDF | دانلود رایگان |
Viral and microbial pathogens contain specific motifs or pathogen-associated molecular patterns (PAMPs) that are recognized by cell surface- and endosome-associated Toll-like receptors (TLRs). RNA virus infection is also detected through TLR-independent mechanisms. Early viral replicative intermediates are detected by two recently characterized cystolic viral RNA receptors—RIG-I and MDA-5. Both are DExDH/box RNA helicases, and RIG-I specifically recognizes 5′-triphosphate containing viral RNA and transmits signals that induce type I interferon-mediated host immunity against virus infection. In this review, we will focus on RIG-I-like receptor (RLR) signal transduction and the regulatory mechanisms – ubiquitination, deubiquitination, ISGylation – underlying this important host response.
Journal: Seminars in Immunology - Volume 21, Issue 4, August 2009, Pages 215–222