MCB
Home Help [Feedback] [For Subscribers] [Archive] [Search] [Contents]
This Article
Right arrow Full Text (PDF)
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Services
Right arrow Similar articles in this journal
Right arrow Similar articles in PubMed
Right arrow Alert me to new issues of the journal
Right arrow Download to citation manager
Right arrowReprints and Permissions
Right arrow Copyright Information
Right arrow Books from ASM Press
Right arrow MicrobeWorld
Citing Articles
Right arrow Citing Articles via HighWire
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by Nakajima, K
Right arrow Articles by Wall, R
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Nakajima, K
Right arrow Articles by Wall, R

 Previous Article  |  Next Article 

Mol Cell Biol. 1991 March; 11(3): 1409-1418

Interleukin-6 signals activating junB and TIS11 gene transcription in a B-cell hybridoma.

K Nakajima and R Wall

Department of Microbiology and Immunology, School of Medicine, University of California, Los Angeles 90024.

ABSTRACT

The events in interleukin-6 (IL-6) signal transduction leading to primary response gene activation were analyzed in murine B-cell hybridoma and plasmacytoma cells which require IL-6 for growth. IL-6 stimulation of IL-6-deprived cells resulted in the rapid and transient tyrosine phosphorylation of a 160-kDa cellular protein (p160). This was followed by the highly selective induction of two primary response genes, junB/AP-1 transcription factor and TIS11. junB and TIS11 inductions were unaffected by cycloheximide, suggesting that posttranslational modifications accounted for their activation. Activation of junB and TIS11 transcription required rapid tyrosine kinase activity as well as a different protein kinase activity sensitive to the potent kinase inhibitor, H7, and activated following p160 tyrosine phosphorylation. This H7-sensitive kinase appears to be distinct from any well-characterized protein kinase-second messenger system. On the basis of these findings, we propose that IL-6-induced signal transduction proceeds through a novel protein kinase cascade which activates junB and TIS11 gene transcription.


Mol Cell Biol. 1991 March; 11(3): 1409-1418




This article has been cited by other articles:




Home Help [Feedback] [For Subscribers] [Archive] [Search] [Contents]
J. Bacteriol. J. Virol. Eukaryot. Cell
Microbiol. Mol. Biol. Rev. Clin. Vaccine Immunol. All ASM Journals

Copyright © 1991 by the American Society for Microbiology. All rights reserved.