Browse
Submit Data
Databases
API
Help

Metabolomics,Unknown,Transcriptomics,Genomics,Proteomics

Dataset Information

8 Views

0 Connections

0 Citations

0 Reanalyses

0 Downloads

Omics score: 0

The RelA T505A mouse reveals important NF-kappaB regulatory pathways controlling cell proliferation, apoptosis and lymphomagenesis

ABSTRACT: Phosphorylation of the RelA(p65) Thr505 residue by Chk1 provides a mechanism of crosstalk between NF-kappaB signalling and DNA replication stress but its physiological significance was not known. Therefore, to learn more about the role of this pathway in vivo, we generated a knockin mouse with a RelA T505A mutation. Unlike RelA knockout mice, the RelA T505A mice develop normally but exhibit a variety of aberrant responses to stress. Following partial hepatectomy, livers from RelA T505A mice proliferate more rapidly. Moreover, in the Emu-Myc B-cell lymphoma model, tumorigenesis is more rapid and mice succumb to disease at significantly earlier times. Analysis of embryonic fibroblasts from RelA T505A mice challenged with a range of DNA damaging agents revealed loss of pro-apoptotic RelA functions, at least in part due to DUSP1 dependent regulation of p38 MAP kinase activity. This data reveals a critical pathway controlling NF-kappaB function that acts to suppress tumour-promoting activities of RelA.

ORGANISM(S): Mus musculus

SUBMITTER: Simon Cockell

PROVIDER: E-MTAB-2686 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

ACCESS DATA

Json Xml

Similar Datasets

AhmedMobeen2021 - NF-kB Activation Model

Project description:NF-kappaB Activation Model includes the activation of both NFKB1:RELA and NFKB2:RELB for Canonical and Non-Canonical Pathway respectively. The model includes the pathway model integrated with post-translational modifications of NF-kB subunits that regulate the NFKB1:RELA and NFKB2:RELB activity. The processes that are regulated by NF-kB pathway can be monitored through following readouts NFKB1:RELA Activity, NFKB2:RELB Activity, Degraded RelA, Degraded RelB, Degraded IkB, Degraded NIK, Apoptosis, Tumour, Antiviral Activity, B Cell Growth and Cell Migration. However, last 5 processes above are also influenced by other pathways too, therefore while making predictions, caution has to be exercised.

2022-05-27 | MODEL2001290001 | BioModels

Mouse livers lacking NF-kappaB RelA (p65) during bacteremia

Project description:Using a mouse model with hepatocyte-specific deletion of transcription factor NF-κB RelA (p65), our group has previously revealed the important role of RelA in inducing the acute phase response, maintaining host defense, and preventing liver injury during sepsis. To goal of this study was determine the influence of RelA on hepatic gene changes that provide liver protection during infection. Mice were generated with functional deletion of NF-kappaB RelA (p56) in hepatocytes using a Cre-LoxP system. Mutant mice expressed Cre-recombinase under the transcriptional control of an albumin promotor and homozygous floxed RelA alleles. Wild type control mice lack the Cre-recombinase. Microarray analysis was performed on liver RNA collected from both genotypes of mice in the absence and presence of pneumococcal bacteremia.

2019-06-07 | GSE126642 | GEO

Expression data from mouse livers lacking NF-kappaB RelA (p65) during pneumonia

Project description:A common response to physiological duress is the hepatic acute phase response, a process during which the expression of many genes is altered in the liver. Amongst these transcripts are those encoding acute phase proteins, defined as circulating proteins with significantly changed concentrations during an acute phase response. The goal of this study was to determine the influence of NF-kappaB RelA (p65) on hepatic gene changes including but not limited to acute phase proteins during bacterial pneumonia. Using the Cre-LoxP system, mice were generated with functional deletion of NF-kappaB RelA (p65) in hepatocytes. In mutant mice, Cre-recombinase was expressed under transcriptional control of an albumin promoter in the presence of homozygous floxed alleles for RelA. Wild-type control mice lacked the Cre-recombinase transgene. Microarray analysis was performed on liver RNA collected from both genotypes of mice in the absence and presence of pneumococcal pneumonia.

2012-02-16 | GSE35513 | GEO

Expression data from mouse livers lacking NF-kappaB RelA (p65) during pneumonia

2012-02-16 | E-GEOD-35513 | biostudies-arrayexpress

RelA Nuclear factor-kappaB (NF-kB) Subunit binding Loci in Promoter Regions of PHM1-31 Myometrial Smooth Muscle Cells (Promoter)

Project description:A study to define the binding loci of RelA-containing NF-kappaB dimers in a human myometrial smooth muscle cell line after exposure to TNF.

2015-03-31 | GSE65690 | GEO

RelA Nuclear factor-kappaB (NF-kB) Subunit binding Loci in Promoter Regions of PHM1-31 Myometrial Smooth Muscle Cells (expression)

Project description:A study to define the binding loci of RelA-containing NF-kappaB dimers and subsequent correlation with gene expression in a human myometrial smooth muscle cell line after exposure to TNF.

2015-03-31 | GSE65707 | GEO

Mouse livers lacking NF-kappaB RelA (p65) during bacteremia

Project description:Mouse livers lacking NF-kappaB RelA (p65) during bacteremia

| PRJNA522786 | ENA

Mouse livers during pneumonia

Project description:This SuperSeries is composed of the following subset Series: GSE32105: Expression data from mouse livers lacking STAT3 and RelA during pneumonia GSE35513: Expression data from mouse livers lacking NF-kappaB RelA (p65) during pneumonia GSE35514: Expression data from mouse livers lacking STAT3 during pneumonia GSE35515: Expression data from mouse livers expressing or lacking Cre recombinase during pneumonia Refer to individual Series

2012-02-16 | E-GEOD-35516 | biostudies-arrayexpress

A single Thr505 phospho-site mutation reveals an important role for the RelA NF-κB subunit in liver regeneration and cancer

Project description:Post-translational modification of NF-κB subunits provides a mechanism to differentially regulate their activity in response to the many stimuli that can induce this pathway. However, the physiological significance of these modifications is largely unknown and it remains unclear if these have a critical role in the normal and pathological functions of NF-κB in vivo. Among these, phosphorylation of the RelA(p65) Thr505 residue has been described as an important regulator of NF-κB activity in cell lines but its physiological significance was not known. Therefore, to learn more about the role of this pathway in vivo, we generated a knockin mouse with a RelA T505A mutation. Unlike RelA knockout mice, the RelA T505A mice develop normally but exhibit aberrant hepatocyte proliferation following liver partial hepatectomy or damage resulting from carbon tetrachloride treatment. Consistent with these effects, RelA T505A mice exhibit earlier onset of cancer in the N-nitrosodiethylamine (DEN) model of hepatocellular carcinoma. This data reveals a critical pathway controlling NF-κB function in the liver that acts to suppress tumour-promoting activities of RelA.

2015-11-30 | E-MTAB-3596 | biostudies-arrayexpress

Identification of c-Rel and RelA binding regions in stimulated EL4 cells

Project description:c-Rel and RelA are members of the NF-kappaB family of transcription factors. They both have important roles in T cell activation. To discover where in the genome c-Rel and RelA bind and hence which genes they may directly target, we used ChIP-chip with EL4 cells stimulated with phorbol ester (PMA) and Ionomycin. We have identified regions in EL4 cells (background strain: C57BL/6N) activated for 2h or 8h by PMA and Ionomycin, that bind the transcription factors c-Rel and RelA.

2013-12-29 | GSE42818 | GEO

OmicsDI is part of the ELIXIR infrastructure

OmicsDI is an Elixir interoperability service. Learn more ›

OmicsDI Databases

PRIDE
PeptideAtlas
MassIVE
JPOST Repository
Physiome Model Repository

EGA
EVA
ENA
LINCS
PAXDB
Cell Collective

MetaboLights
Metabolomics Workbench
MetabolomeExpress
GNPS
BioModels
FAIRDOMHub

ArrayExpress
dbGaP
ExpressionAtlas
GEO
NODE

Information

Databases
Help
API
Contact us
Code on GitHub
Terms of use
Submit Data