Browse
Submit Data
Databases
API
Help

Unknown,Transcriptomics,Genomics,Proteomics

Dataset Information

68 Views

0 Connections

0 Citations

0 Reanalyses

0 Downloads

Omics score: 0

RNA-seq of Mus musculus to investigate the role of RNA editing for the gene expression in the suprachiasmatic nuclei of the hypothalamus

ABSTRACT: RNA editing is essential for the formation of functional properties of ionotropic glutamate channels. Previously, we demonstrated the regulation of RNA editing upon manipulation with neural activity in vitro. The hypothalamic suprachiasmatic nuclei (SCN), which serve as a master circadian pacemaker depends on glutamatergic neurotransmission, in particular for signal transmission from the retina, and they exhibit spontaneous 24h rhythmical neural activity. We observed changes in the extent of ionotropic glutamate receptor RNA editing in the SCN during the 24h cycle. Therefore, we aimed to understand the overall role of RNA editing for the mechanism of SCN function and to evaluate the impact of RNA under editing on gene expression.

INSTRUMENT(S): NextSeq 500

ORGANISM(S): Mus musculus

SUBMITTER:

PROVIDER: E-MTAB-11408 | biostudies-arrayexpress |

SECONDARY ACCESSION(S): ERP135202

REPOSITORIES: biostudies-arrayexpress

ACCESS DATA

Json Xml

Similar Datasets

Mouse SCN in LC-MSMS - The suprachiasmatic nucleus (SCN) acts as the central clock to coordinate circadian oscillations in mammalian behavior, physiology and gene expression. Despite our knowledge of the circadian transcriptome of the SCN, how it impacts genome-wide protein expression is not well understood. Here, we interrogated the murine SCN proteome across the circadian cycle using SILAC-based quantitative mass spectrometry.

Project description:The suprachiasmatic nucleus (SCN) acts as the central clock to coordinate circadian oscillations in mammalian behavior, physiology and gene expression. Despite our knowledge of the circadian transcriptome of the SCN, how it impacts genome-wide protein expression is not well understood. Here, we interrogated the murine SCN proteome across the circadian cycle using SILAC-based quantitative mass spectrometry.

2014-09-10 | PXD000778 | Pride

Expression data in inguinal adipose tissue at different circadian times

Project description:Peripheral circadian clocks regulate many aspects of physiology. In this study we deleted the core circadian clock component Bmal1 specifically in mouse adipocytes in order to study the role of the adipocyte clock in energy homeostasis and body weight. We used microarrays to indentify changes in gene expression in the adipose tissue of mice lacking a functional adipocyte circadian clock and identified a small number of up- and down- regulated genes. Adipose tissues were isolated from inguinal adipose fat pads at four different times of the diurnal cycle under constant darkness (circadian time, CT) for RNA extraction and hybridization on Affymetrix microarrays. Adipocyte-specific Bmal1 KO (Ad-Bmal1-/-) and control mice were used for isolation of tissues at CT0, CT6, CT12, CT18 where CT0 the beginning of the subjective day.

2012-10-21 | E-GEOD-35026 | biostudies-arrayexpress

Timed Exercise and Clocks: Does a Minimally Functional Suprachiasmatic Clock Support 24h Behavioral Rhythms?

Project description:The brain’s suprachiasmatic nucleus (SCN) is the master clock driving circadian rhythms in mammals. Vasoactive intestinal polypeptide (VIP) and its cognate receptor, VPAC2, are expressed in SCN neurons and mice with genetically targeted deletion of VPAC2 (Vipr2 -/-animals) show aberrant resetting to light, abnormal behavioral rhythms, and diminished SCN clock gene expression. Timed daily access to a running-wheel (scheduled voluntary exercise; SVE) promotes Vipr2 -/- SCN clock cell synchrony and 24h behavioral rhythms. We hypothesized that timed exercise alters the SCN transcriptome. Here, in control (Vipr2+/+) and Vipr2-/- mice under freely exercising and SVE conditions, RNAseq and qRT-PCR were used to measured gene expression of laser-dissected SCN. Compared to Vipr2+/+ mice, hundreds of genes were differentially expressed in the SCN from Vipr2-/- mice rhythmic in the freely exercising condition. Unexpectedly, SVE did not promote a Vipr2+/+-like SCN transcriptome in Vipr2-/- mice and many transcripts involved in SCN function including Avp, C1ql3, Gpr176, Prok2, Sst, Per2, and Nr1d1 remained dysregulated in the SVE condition. By contrast, circadian oscillators in the liver and lung were mostly intact in Vipr2-/- mice. This study indicates that marked molecular deficits in the SCN are sustained in behaviorally rhythmic Vipr2-/- mice, raising the possibility that a minimal functional SCN circadian clock can underpin whole animal rhythms.

2023-01-20 | GSE207992 | GEO

Circadian VIPergic neurons of the suprachiasmatic nuclei sculpt the sleep-wake cycle

Project description:Although the mammalian rest-activity cycle is controlled by a "master clock" in the suprachiasmatic nuclei (SCN) of the hypothalamus, it is unclear how firing of individual SCN neurons gates individual features of daily activity. Here, we demonstrate that a specific transcriptomically identified population of mouse VIP+ SCN neurons is active at the "wrong" time of the day -nighttime- when most SCN neurons are silent. Using chemogenetic and optogenetic strategies, we show that these neurons and their cellular clocks are necessary and sufficient to gate and time nighttime sleep, but have no effect upon daytime sleep. We propose mouse nighttime sleep, analogous to the human siesta, is a "hard-wired" property gated by specific neurons of the master clock to favor subsequent alertness prior to dawn (a circadian "wake maintenance zone"). Thus, the SCN is not simply a 24h metronome: specific populations sculpt critical features of the sleep-wake cycle.

2021-01-21 | GSE154038 | GEO

Transcription profiling time series of Rattus norvegicus SCN2.2 cell line and in vivo suprachiasmatic nucleus samples to compare oscillatory properties of each transcriptome

Project description:To determine whether immortalized cells derived from the rat SCN (SCN2.2) retain intrinsic rhythm-generating properties characteristic of the SCN, oscillatory properties of the SCN2.2 transcriptome were analyzed and compared to those found in the rat SCN in vivo using rat U34A Affymetrix GeneChips. This SuperSeries is composed of the following subset Series:; GSE1654: Circadian Profiling of the Transcriptome in Immortalized Rat SCN Cells (3 biological replicates); GSE1673: Circadian Profiling of the Transcriptome in Immortalized Rat SCN Cells: Comparison to Long-Evans Rat SCN Experiment Overall Design: Refer to individual Series

2007-10-10 | E-GEOD-4192 | biostudies-arrayexpress

Transcriptome expressed in the mouse suprachiasmatic nucleus

2011-04-22 | GSE28574 | GEO

Transcriptome expressed in the mouse suprachiasmatic nucleus

Project description:This array set was used to identify the genes that are highly expressed in the mouse suprachiasmatic nucleus (SCN). Because pharmacological inhibition of Gai/o activity with pertussis toxin hampers intercellular synchronization and causes dampened rhythms of the entire SCN, we hypothesized that member(s) of the Regulator of G protein Signaling (RGS) family might contribute to synchronized cellular oscillations in the SCN. To test this hypothesis, we surveyed all known mouse Rgs genes for their expression by using GeneChip and selected the genes that are highly expressed in the SCN for further analysis. 12h light:12h dark cycle entrained animals were released into constant darkess. SCN punches were taken from 10 animals at CT2 and 10 animals at CT14, pooled together, and subjected to DNA microarray analysis. CT2 and CT14 correspond, respectively, to 2 and 14 hours after presumptive onset of daytime under constant darkness.

2011-04-22 | E-GEOD-28574 | biostudies-arrayexpress

RNA-seq of neuronal SOX2-ablated murine suprachiasmatic nuclei against wild-type littermate controls

Project description:Mice lacking the stem/progenitor cell transcription factor, Sex determining region Y-box 2 (SOX2), in neurons of the suprachiasmatic nuclei display imprecise, poorly consolidated behavioral rhythms that do not entrain efficiently to environmental light cycles. RNA sequencing revealed that Sox2 deficiency alters the circadian transcriptome of the SCN, reducing the expression of many core clock genes and neuropeptide-receptor systems.

2019-03-18 | E-MTAB-7496 | biostudies-arrayexpress

Spatiotemporal single-cell analysis of gene expression in the mouse suprachiasmatic nucleus

Project description:Mammalian circadian behaviors are orchestrated by suprachiasmatic nucleus (SCN) in the hypothalamus. Yet basic SCN cell types and their roles in circadian pacemaking are still unclear. In this study, we comprehensively characterized the basic cell types of SCN and their circadian and light-induced gene expression. In SCN, we identified seven major cell types among which neurons, astrocytes, ependymocytes and endothelial cells display cell-type specific circadian gene expression. We found that five SCN neuron subtypes, Avp+/Nms+, Vip+/Nms+, Vip+/Grp+, Cck+/C1ql3+ and Cck+/Bdnf+, differ in their spatial distribution, circadian rhythmicity and light responsiveness. Among the rhythmic neuron subtypes, we observed a wave of circadian gene expression propagating from the subtypes in posterior SCN to the subtypes in anterior SCN. Such wave can be explained by the neuropeptide-receptor signaling network in which Avp+/Nms+ subtype is the leader of circadian oscillations. Our study provides insights into the basic neural mechanism of circadian pacemaking in mammals.

2019-06-19 | GSE117295 | GEO

Spatiotemporal single-cell analysis of gene expression in the mouse suprachiasmatic nucleus

2019-06-19 | GSE132608 | GEO