Article (Scientific journals)
Regulation of major histocompatibility complex class I expression by NF-kB-related proteins in breast cancer cells
Dejardin, Emmanuel; Deregowski, Valérie; GREIMERS, Roland et al.
1998In Oncogene
Peer Reviewed verified by ORBi
 

Files


Full Text
1201879a.pdf
Publisher postprint (447.48 kB)
Download

All documents in ORBi are protected by a user license.

Send to



Details



Abstract :
[en] Downregulation of MHC Class I antigens has been observed in many cancers and usually results from a decreased gene transcription. A reporter CAT gene dependent on the MHC Class I kB site or on a longer promoter is transactivated by NF-kB complexes contain- ing p65 or RelB. p100 as well as IkB-a are potent inhibitors of this transcription and p100 sequesters RelB and p65 complexes in the cytoplasm of breast cancer cells. However, although p100 is highly expressed in a number of breast cancer cell lines, MHC Class I antigen expression was observed on all the cell lines we analysed and could be further induced by stimulation with the cytokines IFN-g or TNF-a. Stable transfection of a unresponsive mutated IkB-a Ser 32-36 expression vector showed that TNF-a induced MHC Cl I expression in an NF-kB-dependent way while IFN-g did it independently of any NF-kB activation.
Disciplines :
Biochemistry, biophysics & molecular biology
Author, co-author :
Dejardin, Emmanuel ;  Université de Liège - ULiège > GIGA-R : Virologie - Immunologie
Deregowski, Valérie
GREIMERS, Roland ;  Centre Hospitalier Universitaire de Liège - CHU > Anatomie pathologique
Cai, Zhenzi
Chouaib, Salem
Merville, Marie-Paule ;  Université de Liège - ULiège > Département de pharmacie > Chimie médicale
BOURS, Vincent ;  Centre Hospitalier Universitaire de Liège - CHU > Génétique
Language :
English
Title :
Regulation of major histocompatibility complex class I expression by NF-kB-related proteins in breast cancer cells
Publication date :
1998
Journal title :
Oncogene
ISSN :
0950-9232
eISSN :
1476-5594
Publisher :
Nature Publishing Group, Basingstoke, United Kingdom
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 15 November 2011

Statistics


Number of views
69 (3 by ULiège)
Number of downloads
285 (1 by ULiège)

Scopus citations®
 
26
Scopus citations®
without self-citations
20
OpenCitations
 
22

Bibliography


Similar publications



Contact ORBi