Browse
Submit Data
Databases
API
Help

Dataset Information

0 Views

0 Connections

0 Citations

0 Reanalyses

0 Downloads

Omics score: 0

Sox11 - a novel activity-regulated gene with dentate gyrus-specific expression

ABSTRACT: Neuronal activity initiates transcriptional programs that shape long-term changes in plasticity. Although neuron subtypes differ in their plasticity response, most activity-dependent transcription factors are broadly expressed across different neuron subtypes and brain regions. Thus, how regional and neuronal subtype-specific plasticity are established on the transcriptional level remains poorly understood. Here, we report that the developmental transcription factor Sox11 is induced in mature neurons upon hippocampal circuit activity and that this activity-dependent expression occurs exclusively in the dentate gyrus (DG) of the hippocampus. In addition, we show that Sox11 can modify synaptic plasticity and intrinsic excitability of DG granule cell neurons as well as the expression of plasticity-related genes. We propose that Sox11 is a DG-specific activity-dependent gene and might play a role in fine tuning regional plasticity in the hippocampal circuit.

ORGANISM(S): Mus musculus

PROVIDER: GSE140180 | GEO | 2019/11/10

REPOSITORIES: GEO

ACCESS DATA

Json Xml

Dataset's files

Source:

			Action	DRS
		Other

Items per page:

1 - 1 of 1

Similar Datasets

Septo-dentate gyrus cholinergic circuits modulate function and morphogenesis of adult neural stem cells through granule cells in mice

Project description:Dentate gyrus (DG) is a critical structure for spatial memory and adult neurogenesis, and both processes are dynamically regulated by neural circuit activity. It remains unknown how neural circuits orchestrate the molecular landscape of the highly heterogeneous DG to regulate these distinct functions. Here we first report that activation of a cholinergic circuit from Diagonal Band of Broca to DG promotes both neural stem cell (NSC) activation and spatial memory. Furthermore, using single-nucleus RNA-sequencing of DG, we report broad transcriptomic changes across multiple types of mature and adult-born cells in response to cholinergic circuit activation. Notably, various neuronal populations exhibit abundant molecular changes that support synaptic functions crucial for spatial memory; while NSCs exhibit molecular changes that support their structural development and neurogenic proliferation. Interestingly, our electrophysiology and NicheNet analyses reveal granule cells, endothelial cells, and astrocytes as potential intermediaries for cholinergic activity-dependent NSC regulation. Our findings provide cell-type specific molecular mechanisms underlying cholinergic circuit activity-dependent regulation of distinct DG functions.

2024-09-04 | GSE202481 | GEO

Transcription profiling of rat hippocampal H3 region

Project description:This SuperSeries is composed of the following subset Series:; GSE11473: Rapid encoding of information alters the profile of plasticity related mRNA transcripts in the hippocampal CA3 region; GSE11474: Rapid encoding of information alters the profile of plasticity related mRNA transcripts in the hippocampal CA1 region. GSE11475: Rapid encoding of information alters the profile of plasticity related mRNA transcripts in the hippocampal DG region Experiment Overall Design: Refer to individual Series

2008-06-18 | E-GEOD-11476 | biostudies-arrayexpress

MicroRNA-124 and -137 cooperativity controls caspase-3 activity through BCL2L13 in hippocampal neural stem cells. [miRNA expression]

Project description:Temporal lobe epilepsy (TLE) can develop from alterations in hippocampal structure and circuit characteristics, and can be modeled in mice by administration of kainic acid (KA). Adult neurogenesis in the dentate gyrus (DG) contributes to hippocampal functions and has been reported to contribute to the development of TLE. Some of the phenotypical changes include neural stem and precursor cells (NPSC) apoptosis, shortly after their birth, before they produce hippocampal neurons. Here we explored these early phenotypical changes in the DG 3 days after systemic KA administration to mice. Our specific aim was to understand the molecular mechanisms underlying altered apoptosis levels in NSPC following KA-induced status epilepticus (KA-SE). Accordingly, we chose a multi-omics experimental setup and analyzed DG tissue samples using proteomics, transcriptomics and microRNA profiling techniques. We here present a description of how these date were obtained and provide them to others for further analysis and validation. This may help to further identify and characterize molecular mechanisms involved in the alterations induced shortly after KA-SE in the mouse DG. Total RNA obtained from dentate gyrus 72h after mice were subjected to repeated low dose kainic acid induced status epilepticus or saline i.p. injections

2016-03-12 | E-GEOD-79131 | biostudies-arrayexpress

MicroRNA-124 and -137 cooperativity controls caspase-3 activity through BCL2L13 in hippocampal neural stem cells. [RNA expression]

2016-03-12 | E-GEOD-79129 | biostudies-arrayexpress

Detection of Arc/Arg3.1 oligomers in rat brain: constitutive and synaptic activity-evoked dimer expression in vivo

Project description:The immediate early gene product activity-regulated cytoskeleton-associate protein (Arc or Arg3.1) is a major regulator long-term synaptic plasticity with critical roles in postnatal cortical development and memory formation. However, the molecular basis of Arc function is not defined. Arc is a hub protein with interaction partners in the postsynaptic neuronal compartment and nucleus. In vitro biochemical and biophysical analysis of purified recombinant Arc show formation of low-order oligomers and larger particles including retrovirus-like capsids. Here, we provide evidence for naturally occurring Arc oligomers in mammalian brain. Using in situ protein crosslinking to trap weak Arc-Arc interactions, we identified in various preparations a prominent Arc immunoreactive band on SDS-PAGE of molecular mass corresponding to a dimer. While heavier Arc species or putative trimers and tetramers were detected, they were of lower abundance. In the dentate gyrus (DG) of adult anesthetized rats, induction of long-term potentiation (LTP) by high-frequency stimulation (HFS) of medial perforant synapses or by brief intrahippocampal infusion of BDNF led to a massive increase in Arc dimer expression. Arc immunoprecipitation of crosslinked DG tissue showed enhanced expression of dimer during four hours of LTP maintenance. Mass spectrometric proteomic analysis of immunoprecipitated, gel-excised bands corroborated detection of Arc dimer. Furthermore, Arc dimer was constitutively expressed in naïve cortical, hippocampal and DG tissue, with lowest levels in the DG. Taken together the results implicate Arc dimers as the predominant low-oligomeric form in mammalian brain, exhibiting regional differences in its constitutive expression and pronounced enhanced expression during DG LTP.

2023-07-20 | PXD039612 | Pride

Astrocyte-encoded positional cues maintain sensorimotor circuit integrity

Project description:Astrocytes, the most abundant cells in the central nervous system, promote synapse formation and help refine neural connectivity. Although they are allocated to spatially distinct regional domains during development, it is unknown whether region-restricted astrocytes are functionally heterogeneous. Here we show that postnatal spinal cord astrocytes express several region-specific genes, and that ventral astrocyte-encoded Semaphorin3a (Sema3a) is required for proper motor neuron and sensory neuron circuit organization. Loss of astrocyte-encoded Sema3a led to dysregulated α−motor neuron axon initial segment orientation, markedly abnormal synaptic inputs, and selective death of α−but not of adjacent γ−motor neurons. Additionally, a subset of TrkA+ sensory afferents projected to ectopic ventral positions. These findings demonstrate that stable maintenance of a positional cue by developing astrocytes influences multiple aspects of sensorimotor circuit formation. More generally, they suggest that regional astrocyte heterogeneity may help to coordinate postnatal neural circuit refinement. 12 total samples consisting of three biological replicates each of flow sorted postnatal day 7 dorsal spinal cord astrocytes, ventral spinal cord astrocytes, dorsal SC non astrocytes, and ventral SC non astrocytes

2014-05-02 | E-GEOD-55054 | biostudies-arrayexpress

The Intermittent Fasting Mimetic, 2-deoxyglucose, Reprograms Brain Derived Neurotrophic Factor (BDNF) transcription via an Adaptive ER Stress-ATF4 Pathway and Improves Outcomes in Alzheimer’s and Stroke Models [ChIP-seq]

Project description:Intermittent fasting (IF) has broad beneficial effects on brain pathophysiology. Here, we sought to identify the target required for beneficial effects of IF using its pharmacological mimic, 2-deoxyglucose (2-DG), which could also eliminate limitations of human IF application due to dosage and schedule issues. 2-DG transcriptionally induced plasticity gene, Bdnf in vitro and in vivo. A 2-DG dose that induced Bdnf transcription in vivo also normalized hippocampal long-term potentiation and memory in an AD mouse model (5xFAD) and significantly improved functional recovery in stroke models. 2-DG enhanced Bdnf transcription by decreasing N-linked glycosylation that induced ER stress and the activity of newly translated ATF4 at +3kb intronic enhancer region of Bdnf gene. These data highlight the critical role of N-linked glycosylation in glucose sensing and suggest that 2-DG can improve outcomes without inducing ketosis via an adaptive ER stress pathway culminating in the transcription of CNS-associated resilience genes including Bdnf. n our preliminary in-vitro studies in primary neurons, we found that changing glucose utlization using 2-deoxyglucose (2-DG, a known glycolytic inhibitor, which inhibits glucose utilization) led to a dose dependent signficant increase in Bdnf gene expression. Additionally, the dose of 2-DG that induced Bdnf gene expression also normalized learning and memory in mouse model of AD (5xFAD mouse) and improved functional recovery in mice models of ischemic and hemorrhagic strokes. With RNA Sequencing of 2-DG treated primary neuronal samples, our first goal was to identify dominant gene signatures in response to 2-deoxyglucose in order to delineate critical pathways affected by changes in glucose metabolism and our second goal was to understand if 2-deoxyglucose affect a broad gene plasticity program or only a few selective plasticity genes.

2023-11-28 | GSE217282 | GEO

MicroRNA-124 and -137 cooperativity controls caspase-3 activity through BCL2L13 in hippocampal neural stem cells. [miRNA expression]

2016-03-12 | GSE79131 | GEO

MicroRNA-124 and -137 cooperativity controls caspase-3 activity through BCL2L13 in hippocampal neural stem cells. [RNA expression]

2016-03-12 | GSE79129 | GEO

ECS-induced gene expression changes in mouse dentate gyrus

Project description:Neuronal activity-dependent gene expression plays important roles in neural plasticity. We use electroconvulsive stimulation (ECS) as an in vivo model for neuronal activation to identify genes that are regulated by neuronal activity. Dentate gyri (DG) were microdissected 4 hours after sham or ECS treatment for gene expression profiling. 4 total samples were analysed (2 for each condition). Averaged expression values between sham and ECS samples were pair-wise compared.

2011-08-31 | E-GEOD-30493 | biostudies-arrayexpress

OmicsDI is part of the ELIXIR infrastructure

OmicsDI is an Elixir interoperability service. Learn more ›

Tweets

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