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Hirota et al., Biochem Biophys Res Commun 2000
:
Nucleoredoxin, glutaredoxin, and
thioredoxin differentially
regulate NF-kappaB,
AP-1 , and CREB activation in HEK293 cells
Wei et al., Cancer Res 2000
:
Finally, the ability of both
TRX and Ref-1 from irradiated cells to
stimulate AP-1 DNA binding in nonirradiated nuclear extracts was abolished by chemical oxidation and restored by chemical reduction
Karimpour et al., Oncogene 2002
:
Since ionizing radiation ( IR ) induces oxidative stress as well as increases AP-1 DNA binding activity via the activation of Ref-1, the potential
roles of TR and
thioredoxin (TRX) in the regulation of
AP-1 activity in response to IR were investigated
Hwang et al., Oncogene 2004
(Disease Progression...) :
Further,
Trx negatively
regulates two important Jab1 controlled signaling pathways, activation of
AP-1 transcription and degradation of p27Kip1, probably through a direct interaction between Trx and C-terminal of Jab1 ... The negative
effect of
Trx on
AP-1 activity is Jab1 dependent, as it disappears when Jab1 levels are suppressed by an antisense approach
Das et al., Mol Cell Biochem 2010
:
c-Jun-NH2 terminal kinase (JNK)-mediates
AP-1 activation by
thioredoxin : phosphorylation of cJun, JunB, and Fra-1 ... In this article, we demonstrate that the increased level of
Trx induces
AP-1 DNA binding in a redox dependent manner by activating JNK subgroup of MAPKs ... In co-transfection studies,
AP-1 dependent luciferase reporter vector and
pcDNA3-Trx increased luciferase activity demonstrating that increased expression of Trx increases AP-1 transactivation ... In addition, dominant negative JNK kinase ( dnJNK/MKK4 ) or dominant negative JNK ( dnJNK ) inhibited
Trx mediated
AP-1 transactivation, as well as AP-1 DNA binding ... Furthermore, transfection of kinase-dead MEKK1, an initiating kinase of the JNK pathway inhibited
Trx mediated
AP-1 transactivation and DNA binding, suggesting that MEKK1 may mediate Trx induced AP-1 activation ... In contrast, wild-type MEKK1 overexpression did not inhibit
Trx mediated
AP-1 activation
Schenk et al., Proc Natl Acad Sci U S A 1994
:
A similar increase of AP-1 activity was also observed with other, structurally unrelated antioxidants such as pyrrolidine dithiocarbamate and butylated hydroxyanisole, indicating that the
thioredoxin induced increase of
AP-1 activation was indeed based on an antioxidant effect ... These results suggest that
thioredoxin plays an important role in the regulation of transcriptional processes and oppositely
affects NF-kappa B and
AP-1 activation
Galter et al., Eur J Biochem 1994
:
In vitro, GSSG inhibited the DNA binding activity of NF kappa B more effectively than that of AP-1, while
AP-1 was
inhibited more effectively by oxidized
thioredoxin
Hirota et al., Proc Natl Acad Sci U S A 1997
:
AP-1 transcriptional activity is
regulated by a direct association between
thioredoxin and Ref-1 ... We here report the molecular cascade of redox regulation of
AP-1 mediated by
TRX and Ref-1