| 2008 |
Crtc1 (CREB-regulated transcription coactivator-1) is required for Creb1-dependent transcriptional activation of Cartpt and Kiss1 genes in the hypothalamus. Leptin promotes nuclear dephosphorylation of Crtc1, which then co-occupies Cartpt and Kiss1 promoters with Creb1; a dominant-negative Creb1 polypeptide disrupted these effects, establishing Creb1-Crtc1 as the pathway mediating leptin's central effects on energy balance and fertility. |
Dominant-negative CREB1 expression, ChIP (chromatin immunoprecipitation) of hypothalamic Crtc1 at target promoters, Crtc1 overexpression/depletion in hypothalamic cells, Crtc1−/− mouse model |
Nature medicine |
High |
18758446
|
| 2010 |
CCDC6 physically interacts with CREB1 and represses its transcriptional activity by recruiting histone deacetylase 1 (HDAC1) and protein phosphatase 1 (PP1) to CRE-containing promoters of CREB1 target genes (including AREG and cyclin A). Loss of CCDC6 via RET/PTC1 fusion leads to increased CREB1 phosphorylation and target gene expression in papillary thyroid carcinoma. |
Co-immunoprecipitation, chromatin immunoprecipitation (ChIP), reporter assays, expression analysis in PTC tumor specimens |
Oncogene |
High |
20498639
|
| 2013 |
Creb1 forms a complex with Mecp2 at methylated CpG sites in the Glut3 gene promoter to transactivate neuronal Glut3 expression. Sequential ChIP showed Creb1 recruitment of Mecp2 to glut3-mCpGs; co-IP confirmed Creb1-Mecp2 association; siRNA depletion of Creb1 or Mecp2 reduced Glut3 expression, establishing a methylation-dependent transactivation mechanism. |
Sequential chromatin immunoprecipitation (ChIP), co-immunoprecipitation, siRNA knockdown, luciferase reporter assay, bisulfite sequencing |
Endocrinology |
High |
23493374
|
| 2013 |
MTOR positively regulates CREB1 activity; impaired autophagy (due to TSC2 or PTEN loss) leads to CREB1 hyperactivation; CREB1 in turn promotes DNA damage and apoptosis in response to etoposide. Silencing Creb1 with siRNA protected MTOR-hyperactive cells from DNA damage-induced apoptosis, placing CREB1 downstream of MTOR and upstream of DNA damage responses. |
siRNA knockdown of Creb1, TSC2/PTEN loss-of-function models (MEFs and cancer lines), etoposide treatment, autophagy manipulation, analysis in TSC patient kidney tumor tissue and hepatocyte-specific PTEN-KO mouse livers |
Autophagy |
Medium |
24189100
|
| 2014 |
CREB1 directly binds the TGFB2 gene promoter in cooperation with SMAD3 to mediate TGFβ-induced TGFβ2 transcription, creating an autocrine loop. The PI3K-AKT and RSK pathways regulate this loop through CREB1. Patient-derived glioblastoma in vivo models confirmed that CREB1 levels determine TGFβ2 expression. |
ChIP (CREB1 binding at TGFB2 promoter), dominant-negative and overexpression constructs, PI3K/AKT/RSK pathway inhibitors, patient-derived glioblastoma xenograft models |
Cancer discovery |
High |
25084773
|
| 2007 |
CREB1 interacts with the transcription factor Lyl1 via the N-terminal domain of Lyl1 and the Q2 and KID domains of CREB1; this interaction recruits histone acetyltransferases p300 and CBP to CREB1-target promoters (including Id1, Id3, cyclin D3, Brca1, Btg2, Egr1) in the absence of CREB1 Ser133 phosphorylation, resulting in transcriptional activation. |
Co-immunoprecipitation, domain mapping, ChIP-chip (genome-wide promoter occupancy), reporter assays |
Biochimica et biophysica acta |
High |
18160048
|
| 2015 |
CREB1 binds the promoter of miR-320a and activates its transcription during serum starvation; this induces mitophagy by downregulating VDAC1 in cervical cancer cells. Serum starvation sequentially induced CREB1, then miR-320a, then reduced VDAC1 to facilitate mitophagy. |
Promoter cloning and deletion mapping, ChIP (CREB1 at miR-320a promoter), overexpression/knockdown experiments, immunoblot for VDAC1 and mitophagy markers |
Oncotarget |
Medium |
26472185
|
| 2011 |
A TSH-CREB1-miRNA loop controls thyroid cell proliferation: thyrotropin (TSH) activates CREB1, which binds the regulatory regions of five specific miRNAs (miR-1, miR-28-A, miR-290-5p, miR-296-3p, miR-297a) and suppresses their expression; three of these miRNAs target CREB1, forming a feedback loop required for TSH-driven thyroid cell growth. |
ChIP (CREB1 binding to miRNA regulatory regions), overexpression of miRNAs, reporter assays, TSH stimulation of thyroid cells |
Molecular endocrinology |
Medium |
21816899
|
| 2015 |
E2-induced PI3K/AKT pathway activation drives CREB1 phosphorylation and CREB1-mediated transcriptional activity that controls 17β-estradiol (E2)-induced cell proliferation. ERα residues L429 and A430 are required for E2-induced PI3K/AKT/CREB1 pathway activation; mutation of these residues abolishes E2-induced CREB1 phosphorylation and proliferation. |
Stable cell lines expressing L429A,A430G-ERα mutants, PI3K/AKT inhibition, CREB1 reporter assays, proliferation assays |
Cellular signalling |
Medium |
26348925
|
| 2018 |
CDK5 (PKA/cAMP-independent) maintains CREB1 activation in glioma stem cells (GSCs) to support self-renewal. Pharmacological CDK5 inhibition suppresses CREB1 activation in vitro and in GSC xenograft tumors. A Drosophila genetic suppressor screen identified dCdk5 as a critical regulator, with human CDK5 (79% identity) validated as the ortholog. |
Drosophila genetic suppressor screen, CDK5 pharmacological inhibition, GSC self-renewal assays in vitro and xenograft tumors, TCGA data analysis |
Cell reports |
Medium |
29742423
|
| 2018 |
SETD2-mediated H3K36 trimethylation (H3K36me3) is required for CREB1 phosphorylation and ERK pathway activation in NSCLC cells; a SETD2 missense mutation (p.T1171K) found in cisplatin-resistant metastatic NSCLC impairs H3K36me3 and CREB1 phosphorylation, conferring cisplatin resistance. Suppression of either SETD2 or CREB1 reduced cisplatin sensitivity. |
NGS identification of SETD2 mutation, ectopic expression of mutant SETD2, CREB1 siRNA knockdown, measurement of H3K36me3 and CREB1 phosphorylation, cisplatin cytotoxicity assays |
Oncogene |
Medium |
30093630
|
| 2019 |
DJ-1 directly interacts with CaMKKβ and modulates CaMKIV/CREB1 (Ser133) phosphorylation to regulate tyrosine hydroxylase (TH) expression. In Dj-1 knockout mouse substantia nigra, CaMKIV phosphorylation, CREB1 Ser133 phosphorylation, and TH levels are all reduced. siRNA knockdown of Creb1 abolishes DJ-1's effect on TH. |
Co-immunoprecipitation (DJ-1 with CaMKKβ), Dj-1 knockout mice, siRNA knockdown of Creb1, immunoblot for phospho-CaMKIV and phospho-CREB1 Ser133 |
Journal of cellular physiology |
Medium |
31232473
|
| 2021 |
CREB1 is constitutively active in prostate luminal (but not basal) cells and transcriptionally activates ING4 and its E3 ligase JFK. CREB1-dependent transient ING4 expression is required for luminal cell induction; failure to downregulate ING4 causes luminal cell death. Oncogenic PTEN loss causes constitutive CREB1 activation, which suppresses ING4, disrupting luminal differentiation. |
RNA-Seq, CREB1 blocking (pharmacological), overexpression/knockdown constructs, identification of ING4 and JFK as CREB1 transcriptional targets, PTEN-KO oncogenic transformation model, IHC of primary prostate tumors, xenograft tumor growth assay |
Oncogene |
Medium |
33846571
|
| 2022 |
EBOV VP35 binds human AKIP1, which activates PKA and its downstream transcription factor CREB1. During Ebola infection, CREB1 is recruited into viral ribonucleoprotein complexes in viral inclusion bodies (VIBs) and is required for viral replication. AKIP1 depletion or PKA-CREB1 inhibition dramatically impairs EBOV replication. VP35-dependent CREB1 activation also upregulates coagulation genes THBD and SERPINB2. |
Co-immunoprecipitation (VP35-AKIP1), confocal colocalization in VIBs, siRNA depletion of AKIP1, PKA-CREB1 pharmacological inhibition, EBOV replication assays, transcriptomic analysis of CREB1 target genes |
Nature communications |
High |
35474062
|
| 2023 |
Mettl3 (m6A methyltransferase) modulates the stability of Creb1 mRNA in an m6A-dependent manner in iNKT cells; Mettl3 deficiency decreases Creb1 mRNA stability and reduces Creb1 protein and phosphorylation levels. Conditional ablation of Creb1 in DP thymocytes phenocopies Mettl3 loss; ectopic Creb1 expression rescues developmental defects in Mettl3-deficient iNKT cells. |
Conditional KO of Mettl3 and Creb1 in DP thymocytes, transcriptomic and epi-transcriptomic analyses (m6A mapping), ectopic Creb1 expression rescue, flow cytometry, cytokine secretion assays |
Cell reports |
High |
37267102
|
| 2023 |
Cullin-5 acts as an E3 ubiquitin ligase that ubiquitylates and degrades CREB1 protein, especially under proteotoxic stress. Cullin-5 deficiency leads to CREB1 accumulation and activation of CREB1-CCL2 signaling, promoting monocyte/MDSC accumulation and T-cell reduction in the tumor microenvironment. |
CRISPR-Cas9 genome-wide screen and Sleeping Beauty transposon mutagenesis in mice, ubiquitylation assay (Cullin-5 ubiquitylates CREB1), CREB1 inhibitor treatment, immune cell profiling by flow cytometry |
Science advances |
High |
36662868
|
| 2021 |
CREB1 directly binds the promoter of CCAT1 lncRNA and activates its transcription to sustain MYC expression and cell proliferation. Additionally, in the absence of CREB1, competition between CREB1 and p65 for CBP/p300 is unbalanced, leading to NF-κB pathway activation and EMT in colorectal cancer cells. |
CREB1 CRISPR knockout in HCT116 cells, monitoring of 45 signaling pathways, ChIP (CREB1 at CCAT1 promoter), co-activator competition assay |
Science China. Life sciences |
Medium |
35696016
|
| 2019 |
CREB1 acts as a transcription factor that binds the promoter of the Lin28 gene to activate Lin28 expression; CREB1 also directly binds the VASP promoter. Through this dual transcriptional control, CREB1 activates a CREB1/Lin28/miR-638/VASP interactive network promoting cell proliferation and migration in breast cancer. |
ChIP (CREB1 binding at Lin28 and VASP promoters), reporter assays, RNA-binding protein assays, overexpression/knockdown |
International journal of biological sciences |
Medium |
31754343
|
| 2020 |
Norepinephrine (NE) induces CREB1 phosphorylation, and phosphorylated CREB1 binds to the miR-373 promoter to transcriptionally activate miR-373 expression, which promotes colon cancer cell proliferation and invasion through TIMP2 and APC suppression. |
ChIP (pCREB1 at miR-373 promoter), reporter assays, siRNA/overexpression of CREB1 and miR-373, in vitro and in vivo tumor models |
Molecular oncology |
Medium |
32118353
|
| 2023 |
CREB1 transcriptionally activates SCD (stearoyl-CoA desaturase) via direct promoter binding; SCD increases monounsaturated fatty acid availability and thereby confers ferroptosis resistance. PKA inhibition reduces CREB1 activity and sensitizes NSCLC cells to ferroptosis inducers; SCD overexpression rescues the effect of CREB1 knockdown. |
High-throughput ChIP screening, dual-luciferase assay, CREB1 knockdown, SCD overexpression rescue, lipid peroxidation assays, xenograft tumor experiments |
Respiratory research |
Medium |
37957645
|
| 2021 |
CREB1 directly binds to the promoter of HLA-E and activates its transcription in multiple myeloma cells. Pharmacological or genomic inhibition of CREB1 reduces HLA-E levels even in the presence of IFN-γ, thereby restoring NK cell-mediated cytotoxicity against MM cells. |
ChIP (CREB1 at HLA-E promoter), CREB1 knockdown/knockout and pharmacological inhibition, NK cell cytotoxicity assays, IFN-γ stimulation |
Leukemia |
Medium |
38902472
|
| 2024 |
HTR2B (serotonin receptor) signaling activates S6K1 via Akt/mTOR, which phosphorylates CREB1 at Ser133, promoting CREB1 nuclear translocation. Nuclear phospho-CREB1 then binds the CREB1 half-site (GTCA) in the ZEB1 promoter to transcriptionally activate ZEB1, driving EMT and colorectal cancer metastasis. |
Pharmacological blocking and genetic knockdown of HTR2B, ChIP (pCREB1 at ZEB1 promoter), reporter assay with CREB1 half-site, phospho-CREB1 nuclear translocation assay, in vivo metastasis mouse models |
Molecular cancer research |
Medium |
38381131
|
| 2021 |
CREB1 directly binds the promoter of SRGN to activate its transcription in nasopharyngeal carcinoma. CREB1 expression is controlled upstream by the FoxO1-miR-148a-5p axis (FoxO1 activates miR-148a-5p transcription; miR-148a-5p targets CREB1). STAT3 suppression upregulates FoxO1, leading to miR-148a-5p-mediated downregulation of CREB1 and SRGN. |
EMSA and ChIP (CREB1/FoxO1 binding at SRGN/miR-148a-5p promoters), dual-luciferase reporter assay, RIP assay, xenograft tumor model, siRNA knockdown |
Laboratory investigation |
Medium |
35562411
|
| 2022 |
CREB1 binds to the promoter of the lncRNA PVT1 and activates its transcription in cardiac fibroblasts during TGF-β1-induced cardiac fibrosis, as confirmed by ChIP assay. |
ChIP assay (CREB1 at PVT1 promoter), luciferase reporter assay, siRNA knockdown, in vitro and in vivo cardiac fibrosis models |
International journal of cardiology |
Medium |
35063587
|
| 2023 |
CREB1 and progesterone receptor (PGR) bind directly to the PTPN11 (SHP2) core promoter (-229 to +1 bp) in response to progesterone and cAMP during uterine stromal decidualization, as confirmed by EMSA and ChIP. Knockdown of either PGR or CREB1 significantly inhibits SHP2 expression induced by medroxyprogesterone acetate and cAMP. |
Luciferase reporter with promoter deletion mapping, EMSA, ChIP, siRNA knockdown of PGR and CREB1 in human endometrial stromal cells |
The FEBS journal |
Medium |
37786383
|
| 2011 |
Striatal CREB1 in medium spiny neurons negatively regulates sensitivity to psychostimulants (cocaine, amphetamine). Postnatal deletion of CREB1 in these neurons increased psychostimulant sensitivity; loss of CREB1 was accompanied by rapid upregulation of the related transcription factor CREM, suggesting partial redundancy. Striatal deletion of CBP (CREB1 coactivator) produced even greater psychostimulant sensitivity. |
Cre/lox conditional KO of CREB1 or CBP in striatal medium spiny neurons, locomotor and sensitization behavioral assays, qRT-PCR and immunohistochemistry for CREM |
Psychopharmacology |
Medium |
21766169
|
| 2019 |
In C. elegans, a specific isoform of CREB1/CRH-1 (CRH-1e) is primarily responsible for long-term memory (LTM) formation. Expression of CRH-1e in RIM neurons is sufficient to rescue LTM defects in crh-1 null mutants. Two amino acids, K247 and K266, within CREB1/CRH-1 are required for LTM-related functions but dispensable for innate chemotaxis behavior. |
Isoform-specific null mutants, neuron-specific rescue expression, site-directed mutagenesis (K247, K266), LTM behavioral assays, neuron silencing during training |
The Journal of neuroscience |
Medium |
31413073
|
| 2024 |
Forskolin-driven neuronal reprogramming of human somatic cells operates via the cAMP-CREB1-JNK signaling axis: forskolin upregulates cAMP-CREB1 expression and downregulates JNK expression to convert somatic cells into induced neurons (FiNs). |
Small-molecule-driven reprogramming, western blot for cAMP/CREB1/JNK pathway components, immunofluorescence for neuronal markers, electrophysiological activity recordings in vitro and survival in vivo |
Theranostics |
Medium |
38389831
|
| 2024 |
CREB1 signaling promotes ADT-induced neuroendocrine differentiation (NED) in prostate cancer cells by enhancing EZH2-mediated epigenetic repression of REST. Genetic rescue experiments showed that ADT induces NED through EZH2's repression of REST, with ADT-activated CREB1 signaling enhancing EZH2 activity. CREB1 signaling also directly represses REST expression. |
REST overexpression/knockdown, CREB1 signaling inhibition, EZH2 inhibition, genetic rescue experiments, ADT treatment in PCa cell lines and mouse xenografts, patient sample analysis |
Cell death discovery |
Medium |
38777812
|
| 2021 |
CREB1 directly binds the promoter of miR-922 in liver cancer cells (confirmed by ChIP-PCR), activating its transcription. miR-922 then targets and suppresses ARID2 expression (confirmed by dual luciferase), enhancing malignant behavior. |
ChIP-PCR (CREB1 at miR-922 promoter), dual luciferase reporter assay, RIP assay, ARID2 overexpression rescue, xenograft tumor models |
Oncology reports |
Medium |
33786634
|
| 2022 |
Regorafenib inhibits p38 kinase phosphorylation and downstream Creb1/Klf4 activity in macrophages, reversing M2 polarization toward M1. ChIP confirmed p38/Creb1/Klf4 activity at relevant promoters. This mechanism is independent of anti-angiogenic effects. |
ChIP (Creb1/Klf4 at target genes), p38 kinase inhibitor, MAPK14 knockdown, macrophage polarization markers (flow cytometry, ELISA, qRT-PCR), in vivo syngeneic liver cancer models |
Journal for immunotherapy of cancer |
Medium |
33753566
|
| 2022 |
CRTC2 and CREB1 act as transcriptional activators of miR-93-3p in renal tubular epithelial cells exposed to calcium oxalate crystals; CREB1/CRTC2 binding to the miR-93-3p promoter was confirmed by EMSA and ChIP-qPCR. |
EMSA, ChIP-qPCR (CREB1/CRTC2 at miR-93-3p promoter), dual-luciferase reporter assay, siRNA knockdown, in vivo mouse model |
Journal of nanobiotechnology |
Medium |
40069788
|
| 1990 |
The human CREB1 gene was assigned to chromosome 2q32.3-q34 using somatic cell hybrid Southern blot analysis and in situ hybridization. CREB1 was identified as a nuclear phosphoprotein involved in transcriptional regulation of cAMP-inducible genes. |
Southern blot analysis of mouse-human somatic cell hybrids, in situ hybridization, chromosome 2 translocation mapping |
Genomics |
High |
2142119
|