Document Detail


Identification of an IFN-gamma responsive region in an intron of the invariant chain gene.
MedLine Citation:
PMID:  11009094     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The mechanism by which IFN-gamma up-regulates invariant chain mRNA in antigen-presenting cells has been under intensive investigation. This study shows that in murine monocytic cells the transcriptional up-regulation mediated by the invariant chain (Ii) upstream enhancer only accounts for part of the induction of Ii mRNA by IFN-gamma. We have identified an intronic region in the murine Ii gene that contributes to the transcriptional up-regulation by IFN-gamma. The region has S (H), X/X2 and Y boxes similar to those in MHC class II promoters and the Ii upstream enhancer. Mutations at the putative S, X and Y boxes have abolished the ability of the region to mediate Ii up-regulation by IFN-gamma. Consistent with the functions of these boxes, our findings reveal that the up-regulation of Ii transcription by IFN-gamma mediated by the intronic region is dependent on the induction of class II transactivator by IFN-gamma.
Authors:
Z A Cao; B B Moore; D Quezada; C H Chang; P P Jones
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  European journal of immunology     Volume:  30     ISSN:  0014-2980     ISO Abbreviation:  Eur. J. Immunol.     Publication Date:  2000 Sep 
Date Detail:
Created Date:  2000-10-12     Completed Date:  2000-10-12     Revised Date:  2008-11-21    
Medline Journal Info:
Nlm Unique ID:  1273201     Medline TA:  Eur J Immunol     Country:  GERMANY    
Other Details:
Languages:  eng     Pagination:  2604-11     Citation Subset:  IM    
Affiliation:
Department of Biological Sciences, Stanford University, CA 94305, USA.
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MeSH Terms
Descriptor/Qualifier:
Antigens, Differentiation, B-Lymphocyte / genetics*
Base Sequence
Cells, Cultured
Histocompatibility Antigens Class II / genetics*
Humans
Interferon-gamma / pharmacology*
Introns*
Molecular Sequence Data
RNA, Messenger / analysis
Response Elements*
Transcription, Genetic / drug effects
Chemical
Reg. No./Substance:
0/Antigens, Differentiation, B-Lymphocyte; 0/Histocompatibility Antigens Class II; 0/RNA, Messenger; 0/invariant chain; 82115-62-6/Interferon-gamma

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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