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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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Journal ArticleDOI

Polydatin down-regulates the phosphorylation level of Creb and induces apoptosis in human breast cancer cell.

TL;DR: The effect of PD on cell proliferation was evaluated by thiazolyl blue tetrazolium bromide assay and the expression of several proteins associated with cell cycle and apoptosis showed that PD is a potential therapeutic natural compound.
Journal ArticleDOI

SREBP-2 aggravates breast cancer associated osteolysis by promoting osteoclastogenesis and breast cancer metastasis.

TL;DR: It is demonstrated that important roles sterol regulatory element-binding protein 2 (SREBP-2) play in osteoclast formation a function, and in breast cancer metastasis, and targeting of SRE BP-2 with Fatostatin which specifically inhibits SCAP and prevents SREBP activation, attenuated breast cancer-induced osteolysis in vivo are demonstrated.
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The Neuropeptide Calcitonin Gene-related Peptide Causes Repression of Tumor Necrosis Factor-α Transcription and Suppression of ATF-2 Promoter Recruitment in Toll-like Receptor-stimulated Dendritic Cells

TL;DR: Results are consistent with a model suggesting that CGRP causes rapid up-regulation of ICER, which in turn competes with ATF-2 for binding to the Tnfa promoter, leading to repression of gene expression.
Journal ArticleDOI

Replication factor C3 is a CREB target gene that regulates cell cycle progression through the modulation of chromatin loading of PCNA.

TL;DR: These studies suggest that RFC3 may have a role in neoplastic myelopoiesis by promoting the G1/S progression and its expression is regulated by CREB.
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.
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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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