The importin protein karyopherin-β1 regulates the mice fibroblast-like synoviocytes inflammation via facilitating nucleus transportation of STAT3 transcription factor

2016 ◽  
Vol 471 (4) ◽  
pp. 553-559 ◽  
Author(s):  
Chi Sun ◽  
Zhaohui Yu ◽  
Youhua Wang ◽  
Tao Tao
Keyword(s):  
Transcription Factor ◽  
Stat3 Transcription Factor ◽  
Fibroblast Like Synoviocytes

Cellular dynamics of the STAT3 transcription factor

Cytokine ◽  
2009 ◽  
Vol 48 (1-2) ◽  
pp. 127
Author(s):  
Velasco Cimica ◽  
Janaki Iyer ◽  
Nancy C. Reich
Keyword(s):  
Transcription Factor ◽  
Cellular Dynamics ◽  
Stat3 Transcription Factor

scholarly journals Biochemical Properties of a Decoy Oligodeoxynucleotide Inhibitor of STAT3 Transcription Factor

2018 ◽  
Vol 19 (6) ◽  
pp. 1608 ◽  
Author(s):  
David Lee ◽  
Rachel O’Keefe ◽  
Patrick Ha ◽  
Jennifer Grandis ◽  
Daniel Johnson
Keyword(s):  
Transcription Factor ◽  
Biochemical Properties ◽  
Stat3 Transcription Factor

scholarly journals Mutant B-RAF-Mcl-1 survival signaling depends on the STAT3 transcription factor

Oncogene ◽  
2013 ◽  
Vol 33 (9) ◽  
pp. 1158-1166 ◽  
Author(s):  
T M Becker ◽  
S C Boyd ◽  
B Mijatov ◽  
K Gowrishankar ◽  
S Snoyman ◽  
...  
Keyword(s):  
Transcription Factor ◽  
Stat3 Transcription Factor ◽  
Survival Signaling

scholarly journals Association of Herpesvirus Saimiri Tip with Lipid Raft Is Essential for Downregulation of T-Cell Receptor and CD4 Coreceptor

2006 ◽  
Vol 80 (1) ◽  
pp. 108-118 ◽  
Author(s):  
Nam-Hyuk Cho ◽  
Dior Kingston ◽  
Heesoon Chang ◽  
Eun-Kyung Kwon ◽  
Jo-Min Kim ◽  
...  
Keyword(s):  
Transcription Factor ◽  
T Cell ◽  
Lipid Rafts ◽  
T Cell Receptor ◽  
Lipid Raft ◽  
Cell Receptor ◽  
Surface Expression ◽  
Herpesvirus Saimiri ◽  
Stat3 Transcription Factor ◽  
Tcr Signal Transduction

ABSTRACT Lipid rafts are membrane microdomains that are proposed to function as platforms for both receptor signaling and trafficking. Our previous studies have demonstrated that Tip of herpesvirus saimiri (HVS), which is a T-lymphotropic tumor virus, is constitutively targeted to lipid rafts and interacts with cellular Lck tyrosine kinase and p80 WD repeat-containing endosomal protein. Through the interactions with Lck and p80, HVS Tip modulates diverse T-cell functions, which leads to the downregulation of T-cell receptor (TCR) and CD4 coreceptor surface expression, the inhibition of TCR signal transduction, and the activation of STAT3 transcription factor. In this study, we investigated the functional significance of Tip association with lipid rafts. We found that Tip expression remarkably increased lipid raft fractions in human T cells by enhancing the recruitment of lipid raft-resident proteins. Genetic analysis showed that the carboxyl-terminal transmembrane, but not p80 and Lck interaction, of Tip was required for the lipid raft localization and that lipid raft localization of Tip was necessary for the efficient downregulation of TCR and CD4 surface expression. Correlated with this, treatment with Filipin III, a lipid raft-disrupting agent, effectively reversed the downregulation of CD3 and CD4 surface expression induced by Tip. On the other hand, Tip mutants that were no longer present in lipid rafts were still capable of inhibiting TCR signaling and activating STAT3 transcription factor activity as efficiently as wild-type (wt) Tip. These results indicate that the association of Tip with lipid rafts is essential for the downregulation of TCR and CD4 surface expression but not for the inhibition of TCR signal transduction and the activation of STAT3 transcription factor. These results also suggest that the signaling and targeting activities of HVS Tip rely on functionally and genetically separable mechanisms, which may independently modulate T-cell function for viral persistence or pathogenesis.

scholarly journals The cdk5 Kinase Regulates the STAT3 Transcription Factor to Prevent DNA Damage upon Topoisomerase I Inhibition

2010 ◽  
Vol 285 (35) ◽  
pp. 26765-26778 ◽  
Author(s):  
Sandy Courapied ◽  
Hélène Sellier ◽  
Sophie de Carné Trécesson ◽  
Arnaud Vigneron ◽  
Anne-Charlotte Bernard ◽  
...  
Keyword(s):  
Dna Damage ◽  
Transcription Factor ◽  
Topoisomerase I ◽  
Stat3 Transcription Factor
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