Browse
Submit Data
Databases
API
Help

Dataset Information

0 Views

0 Connections

0 Citations

0 Reanalyses

0 Downloads

Omics score: 0

The Myonuclear DNA Methylome in Response to an Acute Hypertrophic Stimulus

ABSTRACT: We conducted reduced representation bisulfite sequencing (RRBS) on myonuclei and interstitial nuclei and observed stark differences in methylation patterns during adaptation

ORGANISM(S): Mus musculus

PROVIDER: GSE144774 | GEO | 2020/04/13

REPOSITORIES: GEO

ACCESS DATA

Json Xml

Dataset's files

Source:

			Action	DRS
		Other

Items per page:

1 - 1 of 1

Similar Datasets

The myonuclear DNA methylome in response to an acute hypertrophic stimulus.

Project description:In addition to multi-nucleated muscle fibres, numerous resident and infiltrating mononuclear cells populate the muscle compartment. As most epigenetic assays in skeletal muscle are conducted on whole tissue homogenates, essentially nothing is known about regulatory processes exclusively within muscle fibres in vivo. Utilizing a novel genetically modified mouse model developed by our laboratory, we (1) outline a simple and rapid workflow for isolating pure myonuclei from small tissue samples via fluorescent activated cell sorting and extracting high-quality large-fragment DNA for downstream analyses, and (2) provide information on myonuclear and interstitial cell nuclear CpG DNA methylation via reduced representation bisulphite sequencing (RRBS) using mice that were subjected to an acute mechanical overload of the plantaris muscle. In 3-month-old mice, myonuclei are ~50% of total nuclei in sham and ~30% in 3-d overloaded muscle, the difference being attributable to mononuclear cell infiltration and proliferation with overload. In purified myonuclei, pathway analysis of hypomethylated promoter regions following overload was distinct from interstitial nuclei and revealed marked regulation of factors that converge on the master regulator of muscle growth mTOR, and on autophagy. Specifically, acute hypomethylation of Rheb, Rictor, Hdac1, and Hdac2, in addition to a major driver of ribosome biogenesis Myc, reveals the epigenetic regulation of hypertrophic signalling within muscle fibres that may underpin the long-term growth response to loading. This study provides foundational information on global myonuclear epigenetics in vivo using RRBS, and demonstrates the importance of isolating specific nuclear populations to study the epigenetic regulation of skeletal muscle fibre adaptation.

| S-EPMC7595631 | biostudies-literature

The Age-Dependent Resident Myonuclear Multi-Omic Response to an Acute Skeletal Muscle Hypertrophic Stimulus in Mice

Project description:A detailed analysis of how muscle fiber nuclei (myonuclei) respond to a hypertrophic stimulus would provide a critical step toward understanding compromised skeletal muscle plasticity with age. We used recombination-independent doxycycline-inducible myonucleus-specific fluorescent labelling, tissue RNA-sequencing, myonuclear DNA methylation analysis, multi-omic integration, and single myonucleus RNA-sequencing to define the molecular characteristics of adult (6-8 month) and aged (24 month) murine skeletal muscle after acute mechanical overload (MOV). In adult and aged MOV muscles, we found that: 1) similarities in the transcriptional response to loading – specifically in metabolism genes – were partly explained by a post-transcriptional microRNA-mediated mechanism, which we corroborated using an inducible muscle fiber-specific miR-1 knockout model, 2) differences in age-dependent transcriptional responses were linked to the magnitude and location of differential DNA methylation in resident myonuclei, specifically around hypertrophy-associated genes such as Myc, Runx1, Mybph, Ankrd1, collagen genes, and minichromosome maintenance genes, 3) adult and aged resident myonuclear transcriptomes had differing enrichment for innervation-related transcripts as well as unique transcriptional profiles in an Atf3+ “sarcomere assembly” population after MOV, and 4) cellular deconvolution analysis supports a role for neuromuscular junction regulation in age-specific hypertrophic adaptation. These data are a roadmap for uncovering molecular targets to enhance aged muscle adaptability.

2026-02-12 | GSE319289 | GEO

Murine mammary epithelial cell methylome and ATAC-seq analyses

Project description:The following data comes from two separate experiments. In the initial experiment, luminal and basal murine mammary epithelial cells were analyzed by reduced representation bisulfite sequencing (RRBS) to generate methylome profiles. In the second experiment, luminal and basal murine mammary epithelial cells were analyzed by ATAC-seq.

2018-06-10 | GSE80181 | GEO

DNA methylome and gene expression profiling of paired primary cancer and liver metastasis from colorectal cancer patients

Project description:We generated reduced representation bisulfite sequencing (RRBS) and RNA sequencing (RNA-Seq) data of 20 samples (paired primary and liver metastases from 10 CRC patients) to understand key molecular events involved in tumor progression and metastasis.

2023-08-22 | GSE213402 | GEO

Assessing the influence of DNMTi on human CD8+ T cells on a global level using methylome and transcriptome analyses.

Project description:RRBS (Reduced Representation Bisulfite Sequencing) and RNA-seq were performed on human CD8+ T cells from peripheral blood of three independent healthy donors to study the influence of DNMTi on CD8+ T cells on a global level.

2021-02-08 | GSE93383 | GEO

The Myonuclear DNA Methylome in Response to an Acute Hypertrophic Stimulus

Project description:The Myonuclear DNA Methylome in Response to an Acute Hypertrophic Stimulus

| PRJNA604819 | ENA

The rRNA epitranscriptome and myonuclear SNORD landscape in skeletal muscle fibers contributes to ribosome heterogeneity and is altered by hypertrophic stimulus

Project description:In cell biology, ribosomal RNA (rRNA) 2'O-methyl (2'-O-Me) is the most prevalent post-transcriptional chemical modification contributing to ribosome heterogeneity. The modification involves a family of small nucleolar RNAs (snoRNAs) and is specified by box C/D snoRNAs (SNORDs). Given the importance of ribosome biogenesis for skeletal muscle growth, we asked if rRNA 2'-O-Me in nascent ribosomes synthesized in response to a growth stimulus is an unrecognized mode of ribosome heterogeneity in muscle. To determine the pattern and dynamics of 2'-O-Me rRNA, we used a sequencing-based profiling method called RiboMeth-seq. We applied this method to tissue-derived rRNA of skeletal muscle and rRNA specifically from the muscle fiber using an inducible myofiber-specific RiboTag mouse in sedentary and mechanically overloaded conditions. These analyses were complemented by myonuclear-specific small RNA sequencing to profile SNORDs and link the rRNA epitranscriptome to known regulatory elements generated within the muscle fiber. We demonstrate for the first time that mechanical overload of skeletal muscle 1) induces decreased 2'-O-Me at a subset of skeletal muscle rRNAand 2) alters the SNORD profile in isolated myonuclei. These findings point to a transient diversification of the ribosome pool via 2'-O-Me during growth and adaptation in skeletal muscle. These findings suggest changes in ribosome heterogeneity at the 2'-O-Me level during muscle hypertrophy and lay the foundation for studies investigating the functional implications of these newly identified "growth-induced" ribosomes.

2024-07-24 | GSE273053 | GEO

Profiling the DNA methylation pattern in naïve induced Pluripotent Stem cells and somatic cells

Project description:We analysed by Reduced Representation Bisulfite Sequencing (RRBS) the genome methylation pattern in human fibroblast and in naïve induced pluripoent stem cells (niPSCs)

2018-12-31 | GSE110366 | GEO

Genes differentially methylated after DNA methyltransferase 1 (DNMT1) knockdown in the presence or absence of early osteoblast (OB) differentiation [RRBS]

Project description:reduced representation bisulfite sequencing (RRBS) sequencing was performed to analyze methylation profiles regulated by DNMT1 in C3H10T1/2 MSCs with or without OB differentiation.

2021-07-15 | GSE179903 | GEO

Genome-wide DNA methylation profiling of human dorsolateral prefrontal cortex

Project description:Reduced representation bisulfite sequencing (RRBS) was conducted on dorsolateral prefrontal cortex tissue samples taken from the brains of control individuals not affected by neurological disorder

2012-11-29 | GSE42590 | GEO

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