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Skeletal muscle satellite cells, endothelial cells and single muscle fibers

ABSTRACT: Skeletal muscle satellite cells, endothelial cells and single muscle fibers

PROVIDER: PRJNA428454 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR6439820_1.fastq.gz	Fastqsanger.gz
	SRR6439820_2.fastq.gz	Fastqsanger.gz
	SRR6439821_1.fastq.gz	Fastqsanger.gz
	SRR6439821_2.fastq.gz	Fastqsanger.gz
	SRR6439822_1.fastq.gz	Fastqsanger.gz

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Skeletal muscle satellite cells, endothelial cells and single muscle fibers

Project description:There is considerable crosstalk between satellite cells, endothelilal cells and muscle fibers. Transcriptome analysis from freshly isolated cells from each compartment should help elucidate these pathways.

2018-07-01 | GSE108739 | GEO

Expression profiling of type II skeletal muscle fibers from wild-type mice, myofiber-specific and satellite cell-specific Rrm2b knockout models

Project description:RNA-seq was performed to investigate the role of Rrm2b in skeletal muscle. Type II skeletal muscle fibers were collected from wild-type (C57BL/6) mice and two Rrm2b knockout models, the skeletal muscle-specific knockout (Rrm2b F/F;HSA-Cre, smKO) and satellite cell-specific knockout (Rrm2b F/F;Pax7-CreERT2, scKO).

2022-07-25 | E-MTAB-11318 | biostudies-arrayexpress

Expression data from skeletal muscle satellite cells at different development stages

Project description:Satellite cells are responsible for the long-term regenerative capacity of adult skeletal muscle. The diminished muscle performance and regenerative capacity of aged muscle is thought to reflect progressive fibrosis and atrophy. Whether this reduction in muscle competency also involves a diminishment in the intrinsic regulation of satellite cell self-renewal remains unknown. We used microarray to identify gene expression changes underlying the marked reduction in the capacity of satellite cells to self-renew, contribute to regeneration and repopulate the niche as they age. Skeletal muscles from heterozygous Pax7-ZsGreen mice were isolated at defined stages: E17.5 (fetal - whole forelimb and hindlimb), postnatal day 21 (adolescent - hindlimb), 2-3 month old (young adult - hindlimb) and >1 year old (older adult - hindlimb) mice. ZsGreen-positive skeletal muscle satellite cells were isolated by FACS and pooled (fetal n=4, adolescent n=6, young adult n=8 and older adult n=8 mice).

2014-05-26 | E-GEOD-47401 | biostudies-arrayexpress

Gene profiling of quiescent and activated skeletal muscle satellite cells by an in vivo approach

Project description:The satellite cell of skeletal muscle provides a paradigm for quiescent and activated tissue stem cell states. We have carried out transcriptome analyses by comparing satellite cells from adult skeletal muscles, where they are mainly quiescent, with cells from growing muscles, regenerating (mdx) muscles, or with cells in culture, where they are activated. Our study gives new insights into the satellite cell biology during activation and in respect with its niche. We used microarrays to study the global programme of gene expression underlying adult satellite cell quiescence compared to activation states and to identify distinct classes of up-regulated genes in these two different states Skeletal muscle satellite cells were isolated by flow cytrometry using the GFP fluorescence marker from Pax3GFP/+ mice skeletal muscle. The transcriptome of quiescent satellite cells from adult Pax3GFP/+ muscle was compared to the transcriptome of activated satellite cells obtained from three different samples: 1) regenerating Pax3GFP/+:mdx/mdx muscle (Ad.mdx) , 2) growing 1 week old Pax3GFP/+ muscle (1wk), and 3) adult Pax3GFP/+ cells after 3 days in culture (Ad.cult).

2010-01-04 | E-GEOD-15155 | biostudies-arrayexpress

Gene expression profiles in skeletal muscle satellite cells lacking Dnmt1

Project description:To identify the target genes of Dnmt1 in skeletal muscle satellite cells, we generated satellite cell specific Dnmt1 KO using Pax7-CreERT2 and Dnmt1 flox mice. After Tamoxifen (cKO) or vehicle (Control) treatment for 5 consecutive days, mice were euthanized and muscle satellite cells were collected by FACS sorting and total RNA were extracted.

2021-01-08 | GSE156978 | GEO

Transcription profiling of mouse satellite cells isolated from skeletal muscle

Project description:(Abstract of publication submitted currently) To clarify molecular regulation of satellite cells, we performed genome-wide gene expression analysis of quiescent satellite cells isolated from mouse skeletal muscle by flow cytometry. We identified 53 novel quiescent satellite cell-specific genes whose expressions are sharply down-regulated upon activation. The gene list contains a number of cell surface molecules, transcriptional factors, and cytokines and other signal transduction molecules. We further confirmed that Odz4 and calcitonin receptor proteins were expressed by quiescent but not by activated satellite cells in vivo. Importantly, we found that Pax7+/calcitonin receptor+ satellite cells reappear in close association with regenerating myofibers 7 days after muscle damage, often outside the basal lamina. Moreover, an agonist of calcitonin receptor suppressed the activation of quiescent satellite cells on myofibers in in vitro culture, suggesting that calcitonin receptor signaling plays an important role in renewal and maintenance of satellite cells. Our results show the gene expression profile of quiescent satellite cells for the first time and reveal the temporal and spatial reappearance of a satellite cell pool. Experiment Overall Design: Satellite cells and non-satellite cells were examined. Totally three types of cells (groups), the satellite cells in quiescent and activated states and the non-satellite cells, were compared. Each has 4 replicates.

2008-06-12 | E-GEOD-3483 | biostudies-arrayexpress

Expression data from wild-type single muscle fibers

Project description:The muscle stem cells (or satellite cells (SC)) reside on the muscle fibers tightly wedged between the plasma membrane of the muscle fibers and the basal lamina. The muscle fibers represent a functional niche providing paracrine signals to maintain the tissue resident stem cells. We performed microarrays to depict the global transcriptional profile of single muscle fibers at different time points

2019-08-01 | GSE135163 | GEO

The chemokine receptor CXCR4 regulates satellite cell activation, early expansion, and self-renewal, in response to skeletal muscle injury

Project description:Acute skeletal muscle injury is followed by satellite cell activation, proliferation, and differentiation to replace damaged fibers with newly regenerated muscle fibers, processes that involve satellite cell interactions with various niche signals. Here we show that satellite cell specific deletion of the chemokine receptor CXCR4, followed by suppression of recombination escapers, leads to defects in regeneration and satellite cell pool repopulation in both the transplantation and in situ injury contexts. Mechanistically, we show that endothelial cells and FAPs are the major source of the ligand, Sdf1α, and that CXCR4 is principally required for proper activation and for transit through the first cell division, and to a lesser extent the later cell divisions. In the absence of CXCR4, gene expression in quiescent satellite cells is not severely disrupted, but in activated satellite cells a subset of genes normally induced by activation fail to upregulate normally. These data demonstrate that CXCR4 signaling is essential to normal early activation, proliferation, and self-renewal of satellite cells.

2022-10-27 | GSE205015 | GEO

Expression data from skeletal muscle satellite cells at different development stages

2014-05-26 | GSE47401 | GEO

Identifying signals from the skeletal muscle niche that regulate satellite cell function

Project description:Skeletal muscle is the most common tissue in the body. Its continued maintenance and regeneration throughout life is essential to the function of the organism. Satellite cells are critical to regeneration of the skeletal muscle and strategies to improve function of satellite cells are of great importance. Muscle-resident Fibro-Adipogenic Precursors (FAPs) cells are a critical component of the satellite cell niche and help orchestrate efficient muscle regeneration and potentiate satellite cell differentiation via soluble or secreted factors. Populations with similar phenotype and function to muscle FAPs have been isolated from the skin and white adipose tissue. Interactions between tissue-specific FAP cells and resident stem cells in those tissues might be conserved. Therefore, defining specific factors that mediate the relationship between muscle FAPs and satellite cells would have implications for other organs.

2019-06-30 | GSE67117 | GEO

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