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Journal ArticleDOI

Transcriptional regulation by the phosphorylation-dependent factor CREB

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TLDR
The transcription factor CREB functions in glucose homeostasis, growth-factor-dependent cell survival, and has been implicated in learning and memory, and how is specificity achieved in these signalling pathways?
Abstract
The transcription factor CREB -- for 'cyclic AMP response element-binding protein' -- functions in glucose homeostasis, growth-factor-dependent cell survival, and has been implicated in learning and memory. CREB is phosphorylated in response to various signals, but how is specificity achieved in these signalling pathways?

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Citations
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Injury-induced activation of the MAPK/CREB pathway triggers apoptosis-induced compensatory proliferation in hydra head regeneration.

TL;DR: In this article, pharmacological inhibition of the MAPK/ERK pathway or RNAi knockdown of the RSK, CREB, and CREB binding protein (CBP) genes prevents apoptosis, compensatory proliferation and blocks head regeneration.
Journal ArticleDOI

Hypoxia-induced inflammation in the lung: a potential therapeutic target in acute lung injury?

TL;DR: This work will review recent advances in understanding of unique transcriptional responses to moderate levels of alveolar hypoxia in the lung that apparently allow it to express an inflammatory phenotype at levels of Hypoxia that would not produce such a response in other organs.
Journal ArticleDOI

Prostaglandin E2 suppresses the differentiation of retinoic acid–producing dendritic cells in mice and humans

TL;DR: Prostaglandin E2 inhibits the expression of retinal dehydrogenase, thus inhibiting retinoic acid production and the priming of gut-tropic T cells by dendritic cells.
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Region-specific tolerance to cocaine-regulated cAMP-dependent protein phosphorylation following chronic self-administration.

TL;DR: In this paper, the authors measured cocaine-induced phosphorylation of multiple cAMP-dependent and independent protein substrates in mesolimbic dopamine terminal regions following chronic self-administration.
References
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Journal ArticleDOI

Cyclic AMP stimulates somatostatin gene transcription by phosphorylation of CREB at serine 133

TL;DR: Results suggest that phosphorylation of CREB may stimulate transcription by a mechanism other than by simply providing negative charge, as CREB mutants containing acidic residues in place of the Ser-133 phosphoacceptor were also transcriptionally inactive.
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Phosphorylated CREB binds specifically to the nuclear protein CBP

TL;DR: It is proposed that CBP may participate in cAMP-regulated gene expression by interacting with the activated phosphorylated form of CREB, which is activated as a result of phosphorylation by protein kinase A7.
Journal ArticleDOI

Cell survival promoted by the Ras-MAPK signaling pathway by transcription-dependent and -independent mechanisms.

TL;DR: The findings suggest that the MAPK signaling pathway promotes cell survival by a dual mechanism comprising the posttranslational modification and inactivation of a component of the cell death machinery and the increased transcription of pro-survival genes.
Journal ArticleDOI

Deficient long-term memory in mice with a targeted mutation of the cAMP-responsive element-binding protein

TL;DR: Consistent with models claiming a role for long-term potentiation (LTP) in memory, LTP in hippocampal slices from CREB mutants decayed to baseline 90 min after tetanic stimulation, however, paired-pulse facilitation and posttetanic potentiation are normal.
Journal ArticleDOI

Nuclear protein CBP is a coactivator for the transcription factor CREB

TL;DR: Fluorescence anisotropy measurements are used to define the equi-librium binding parameters of the phosphoCREB:CBP interaction and report here that CBP can activate transcription through a region in its carboxy terminus.
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