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Probing pathways by which rhynchophylline modifies sleep using spatial transcriptomics

ABSTRACT: Probing pathways by which rhynchophylline modifies sleep using spatial transcriptomics

PROVIDER: PRJNA896636 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR22135104_1.fastq.gz	Fastqsanger.gz
	SRR22135104_2.fastq.gz	Fastqsanger.gz
	SRR22135105_1.fastq.gz	Fastqsanger.gz
	SRR22135105_2.fastq.gz	Fastqsanger.gz
	SRR22135106_1.fastq.gz	Fastqsanger.gz

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Probing pathways by which rhynchophylline modifies sleep using spatial transcriptomics (additional files)

Project description:Probing pathways by which rhynchophylline modifies sleep using spatial transcriptomics (additional files)

| PRJNA904265 | ENA

Probing pathways by which rhynchophylline modifies sleep using spatial transcriptomics

Project description:Here, we investigated the effects of Rhynchophylline (RHY) on the mouse brain spatial transcriptome. More precisely, we injected male and female mice intraperitoneally with either saline (NaCl) or RHY, either at Zeitgeber time (ZT referring to time in hour after light onset) 0 or at ZT0 and ZT11. Brains were sampled at ZT4 or ZT14, respectively, and immediately frozen embedded in OCT. Brains were treated and libraries were prepared according to 10x Genomics protocols for Visium Spatial Gene Expression. Sequencing was conducted by Genome Quebec (Montreal, Quebec, Canada). Findings reveal molecular routes by which RHY acts on the brain in a sleep-relevant context. Please cite the original paper when using these data (Ballester Roig et al., Biol Direct, 2023).

2023-05-05 | GSE217058 | GEO

Probing pathways by which rhynchophylline modifies sleep using spatial transcriptomics (additional files)

Project description:Here, we investigated the effects of Rhynchophylline (RHY) on the mouse brain spatial transcriptome. More precisely, we injected male and female mice intraperitoneally with either saline (NaCl) or RHY, either at Zeitgeber time (ZT referring to time in hour after light onset) 0 or ZT0 and ZT11. Brains were sampled at ZT4 or ZT14, respectively, and immediately frozen embedded in OCT. Brains were treated and libraries were prepared according to 10x Genomics protocols for Visium Spatial Gene Expression. Sequencing was conducted by Genome Quebec (Montreal, Quebec, Canada). Findings reveal molecular routes by which RHY acts on the brain in a sleep-relevant context. Please cite the original paper when using these data (Ballester Roig et al., Biol Direct, 2023) and see also the submission GSE217058.

2023-05-05 | GSE218537 | GEO

Probing pathways by which rhynchophylline modifies sleep using spatial transcriptomics.

Project description:BackgroundRhynchophylline (RHY) is an alkaloid component of Uncaria, which are plants extensively used in traditional Asian medicines. Uncaria treatments increase sleep time and quality in humans, and RHY induces sleep in rats. However, like many traditional natural treatments, the mechanisms of action of RHY and Uncaria remain evasive. Moreover, it is unknown whether RHY modifies key brain oscillations during sleep. We thus aimed at defining the effects of RHY on sleep architecture and oscillations throughout a 24-h cycle, as well as identifying the underlying molecular mechanisms. Mice received systemic RHY injections at two times of the day (beginning and end of the light period), and vigilance states were studied by electrocorticographic recordings.ResultsRHY enhanced slow wave sleep (SWS) after both injections, suppressed paradoxical sleep (PS) in the light but enhanced PS in the dark period. Furthermore, RHY modified brain oscillations during both wakefulness and SWS (including delta activity dynamics) in a time-dependent manner. Interestingly, most effects were larger in females. A brain spatial transcriptomic analysis showed that RHY modifies the expression of genes linked to cell movement, apoptosis/necrosis, and transcription/translation in a brain region-independent manner, and changes those linked to sleep regulation (e.g., Hcrt, Pmch) in a brain region-specific manner (e.g., in the hypothalamus).ConclusionsThe findings provide support to the sleep-inducing effect of RHY, expose the relevance to shape wake/sleep oscillations, and highlight its effects on the transcriptome with a high spatial resolution. The exposed molecular mechanisms underlying the effect of a natural compound should benefit sleep- and brain-related medicine.

| S-EPMC10161643 | biostudies-literature

Spatial transcriptomics reveals unique gene expression changes in different brain regions after sleep deprivation

Project description:We report a spatial transcriptomics dataset of mouse brain tissue generated with the 10x Genomics Visium platform to identify gene expression changes after sleep deprivation

2023-01-12 | GSE222410 | GEO

Single-cell transcriptomics and cell-specific proteomics reveals new molecular regulators of sleep

Project description:Every day, we sleep for a third of the day. Sleep is important for cognition, brain waste clearance, metabolism, and immune responses. Homeostatic regulation of sleep is maintained by progressively rising sleep need during wakefulness, which then dissipates during sleep. The molecular mechanisms governing sleep are largely unknown. Here, we used a combination of single-cell RNA sequencing and cell-type specific proteomics to interrogate the molecular and functional underpinnings of sleep. Different cell-types in the brain regions show similar transcriptional response to sleep need whereas sleep deprivation changes overall expression indicative of altered antigen processing, synaptic transmission and cellular metabolism in brainstem, cortex and hypothalamus, respectively. Increased sleep need enhances expression of transcription factor Sox2, Mafb, and Zic1 in brainstem; Hlf, Cebpb and Sox9 in cortex, and Atf3, Fosb and Mef2c in hypothalamus. Results from cell-type proteome analysis suggest that sleep deprivation changes abundance of proteins in cortical neurons indicative of altered synaptic vesicle cycles and glucose metabolism whereas in astrocytes it alters the abundance of proteins associated with fatty acid degradation. Similarly, phosphoproteomics of each cell type demonstrates large shifts in site-specific protein phosphorylation in neurons and astrocytes of sleep deprived mice. Our results indicate that sleep deprivation regulates transcriptional, translational and post-translational responses in a cell-specific manner and advances our understanding of the cellular and molecular mechanisms that govern sleep-wake homeostasis in mammals.

2022-10-13 | PXD018334 | Pride

Single-Cell and Spatial Transcriptomics Analysis of Human Adrenal Aging (spatial transcriptomics)

Project description:These data were used in the spatial transcriptomics analysis of the article titled \\"Single-Cell and Spatial Transcriptomics Analysis of Human Adrenal Aging\\".

2024-04-22 | E-MTAB-13991 | biostudies-arrayexpress

Homer1a drives Homeostatic Scaling-down of Excitatory Synapses During Sleep

Project description:Homeostatic scaling is a global form of synaptic plasticity used by neurons to adjust overall synaptic weight and maintain neuronal firing rates while protecting information coding. While homeostatic scaling has been demonstrated in vitro, a clear physiological function of this plasticity type has not been defined. Sleep is an essential process that modifies synapses to support cognitive functions such as learning and memory. Evidence suggests that information coding during wake drives synapse strengthening which is offset by weakening of synapses during sleep .Here we use biochemical fractionation, proteomics and in vivo two-photon imaging to characterize wide-spread changes in synapse composition in mice through the wake/sleep cycle. We find that during the sleep phase, synapses are weakened through dephosphorylation and removal of synaptic AMPA-type glutamate receptors (AMPARs) driven by the immediate early gene Homer1a and signaling from group I metabotropic glutamate receptors (mGluR1/5), consistent with known mechanisms of homeostatic scaling-down in vitro. Further, we find that these changes are important in the consolidation of contextual memories. While Homer1a gene expression is driven by neuronal activity during wake, Homer1a protein targeting to synapses serves as an integrator of arousal and sleep need through signaling by the wake-promoting neuromodulator noradrenaline (NA) and sleep-promoting modulator adenosine. During sleep or periods of increased sleep need Homer1a enters synapses where it remodels mGluR1/5 signaling complexes to promote AMPAR removal. Thus, we have characterized widespread changes occurring at synapses through the wake/sleep cycle and demonstrated that known mechanisms of homeostatic scaling-down previously demonstrated only in vitro are active in the brain during sleep to remodel synapses, contributing to memory consolidation.

2017-02-13 | PXD004537 | Pride

M. persicae, A. thaliana spatial transcriptomics

Project description:Arabidopsis thaliana spatial transcriptomics of Myzus persicae probing and feeding EPG traces

| PRJEB50288 | ENA

Spatial transcriptomics reveals unique gene expression changes in different brain regions after sleep deprivation

Project description:Spatial transcriptomics reveals unique gene expression changes in different brain regions after sleep deprivation

| PRJNA921902 | ENA