Document Detail


The complement C1qA enhances RIG-I mediated immune signaling.
MedLine Citation:
PMID:  22260551     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
The cellular innate immune response is essential for recognizing and defending against viral infection. RIG-I and VISA mediated immune signaling is critically involved in RNA virus induced innate immune responses. Here we demonstrate that the complement C1qA interacts with different RIG-I pathway components and enhances RIG-I-VISA mediated signaling pathway as well as TBK1 mediated activation of IFN-β promoter. Our data show that ovexpression of C1qA upregulates RIG-I mediated activation of ISRE and NF-κB reporters and IFN-β transcription, but not IRF-3 and IKK-β mediated activation of ISRE and NF-κB promoter. In addition, C1qA can counteract with the function of C1q receptor gC1qR in RIG-I mediated signaling. Our results reveal the important role of complement C1qA in innate immune response.
Authors:
Yetao Wang; Xiaomei Tong; Junjie Zhang; Xin Ye
Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-1-19
Journal Detail:
Title:  Immunology     Volume:  -     ISSN:  1365-2567     ISO Abbreviation:  -     Publication Date:  2012 Jan 
Date Detail:
Created Date:  2012-1-20     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0374672     Medline TA:  Immunology     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
Journal compilation © 2012 Blackwell Publishing Ltd.
Affiliation:
Center for Molecular Immunology, CAS Key Laboratory of Pathogenic Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences (CAS), Beijing 100101, P. R. China Graduate University of Chinese Academy of Sciences, Beijing 100101, China.
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