Expression data from Satellite cells and Endothelial cells isolated at different time points during skeletal muscle regeneration
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ABSTRACT:
ORGANISM(S): Mus musculus
PROVIDER: GSE103684 | GEO | 2017/12/22
SECONDARY ACCESSION(S): PRJNA404061
REPOSITORIES: GEO
Similar Datasets
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
Project description:Skeletal muscle is a post-mitotic tissue with unique plasticity. It has an extraordinary ability to adjust to changes in its physiological environment by altering its metabolic phenotype and its mass. Satellite cells are the most important myogenic progenitor cells involved in muscle regeneration and remodeling. The activation of these cells is governed by genetic programs involving complex transcriptional responses and can be involved in muscle hypertrophy adaptations. We described here gene expression variations evaluated by microarray analysis in satellite cells isolated from wild type and Magic-F1 transgenic mice, a model of skeletal muscle hypertrophy. The transcriptome analysis shows an altered gene signature in proliferating Magic-F1 satellite cells compared to controls, involving genes associated to muscle growth and vasculogenesis.
2016-06-28 | GSE83771 | GEO
Project description:Muscle stem cells, also known as satellite cells, represent the main myogenic population accounting for skeletal muscle homeostasis and regeneration. Here, using the Assay for Transposase Accessible Chromatin followed by sequencing (ATAC-seq), we investigated the epigenetic landscape of activated human and murine satellite cells. Our analysis identified a compendium of putative regulatory elements defining activated satellite cells and myoblasts, respectively.
2021-08-20 | GSE165414 | GEO
Project description:The satellite cell is considered the major tissue-resident stem cell underlying muscle regeneration, however, multiple non-satellite cell myogenic progenitors have been identified. PW1/Peg3 is expressed in satellite cells as well as a subset of interstitial cells with myogenic potential termed PICs (PW1+ Interstitial Cells). PICs differ from satellite cells by their anatomical location (satellite cells are sublaminal and PICs are interstitial), they do not express any myogenic marker and arise from a Pax3-independent lineage. Upon isolation from juvenile muscle (1 to 3 weeks old), PICs are capable to form both skeletal and smooth muscle suggesting they constitute a more plastic population compared to satellite cells. We used microarrays to gain insight into the relantionship between PICs and satellite cells. PICs and satellite cells were isolated from 1-week old mouse muscle and subsequent RNA extraction was performed.
2012-09-01 | E-GEOD-40523 | biostudies-arrayexpress
Project description:The acquisition of a proliferating cell status from a quiescent state as well as the shift between proliferation and differentiation are key developmental steps in skeletal-muscle stem cells (satellite cells) to provide proper muscle regeneration. However, how satellite-cell proliferation is regulated, though, is not fully understood. Here, we report that the c-isoform of the transcription factor Pitx2 increases cell proliferation in myoblasts by down-regulating the miRNAs miR-15b, miR-23b, miR-106b, and miR-503. This Pitx2c-miRNA pathway also regulates cell proliferation in early-activated satellite cells, enhancing the Myf5+ satellite cells and thereby promoting their commitment to a myogenic cell fate. This study reveals unknown functions of several miRNAs in myoblast and satellite-cell behaviour and thus may have future applications in regenerative medicine. mirVana microarrays (Ambion) were used to profile microRNA signature at different Pitx2 overexpression conditions, namely two different doses (4 and 8 µg CMV-Pitx2c plasmid, respectively) after 24 hours of transfection in SOL8 skeletal myogenic cells. 20 µg of total RNA was used to hybridize two distinct microRNA microarrays on each condition analyzed.
2015-06-10 | E-GEOD-53943 | biostudies-arrayexpress
Project description:The influence of the extracellular matrix (ECM) within the stem cell niche remains poorly understood. We found that Syndecan-4 (Sdc4) and Frizzled-7 (Fzd7) form a coreceptor complex in satellite cells and that binding of the ECM glycoprotein Fibronectin (FN) to Sdc4 stimulates the ability of Wnt7a to induce the symmetric expansion of satellite stem cells. Newly activated satellite cells dynamically remodel their niche via transient high-level expression of FN. Knockdown of FN in prospectively isolated satellite cells severely impaired their ability to repopulate the satellite cell niche. Conversely, in vivo overexpression of FN with Wnt7a dramatically stimulated the expansion of satellite stem cells in regenerating muscle. Therefore, activating satellite cells remodel their niche through autologous expression of FN that provides feedback to stimulate Wnt7a signaling through the Fzd7/Sdc4 coreceptor complex. Thus, FN and Wnt7a together regulate the homeostatic levels of satellite stem cells and satellite myogenic cells during regenerative myogenesis. The data set contains one microarray of pooled quiescent skeletal muscle satellite cells
2014-07-11 | E-GEOD-59272 | biostudies-arrayexpress
Project description:The satellite cell is considered the major tissue-resident stem cell underlying muscle regeneration, however, multiple non-satellite cell myogenic progenitors have been identified. PW1/Peg3 is expressed in satellite cells as well as a subset of interstitial cells with myogenic potential termed PICs (PW1+ Interstitial Cells). PICs differ from satellite cells by their anatomical location (satellite cells are sublaminal and PICs are interstitial), they do not express any myogenic marker and arise from a Pax3-independent lineage. Upon isolation from juvenile muscle (1 to 3 weeks old), PICs are capable to form both skeletal and smooth muscle suggesting they constitute a more plastic population compared to satellite cells. We used microarrays to gain insight into the relantionship between PICs and satellite cells.
2012-09-01 | GSE40523 | GEO
Project description:Muscle satellite cells are a self-renewing pool of stem cells that give rise to daughter myogenic precursor cells in adult skeletal muscle. Published and preliminary data indicated that MyoD and p53 genes are involved in satellite cell differentiation. We would like to know what downstream genes of both transcription factors are affected in satellite cell-derived myoblasts (MyoD-/-, p53 -/-). Experiment Overall Design: this experiment include 3 samples and 25 replicates
2008-06-12 | E-GEOD-3244 | biostudies-arrayexpress
Project description:DNA methylation is an essential form of epigenetic regulation responsible for cellular identity. In muscle stem cells, termed satellite cells, DNA methylation patterns are tightly regulated during differentiation. However, it is unclear how these DNA methylation patterns affect the function of satellite cells. We demonstrate that a key epigenetic regulator, ubiquitin like with PHD and RING finger domains 1 (Uhrf1), is activated in proliferating myogenic cells but not expressed in quiescent satellite cells or differentiated myogenic cells in mice. Ablation of Uhrf1 in mouse satellite cells impairs their proliferation and differentiation, leading to failed muscle regeneration. Uhrf1-deficient myogenic cells exhibited aberrant up-regulation of transcripts, including Sox9, with the reduction of DNA methylation level of their promoter and enhancer region. These findings show that Uhrf1 is a critical epigenetic regulator of proliferation and differentiation in satellite cells, by controlling cell type-specific gene expression via maintenance of DNA methylation.
2022-02-04 | GSE169193 | GEO
Project description:Optimal cell-based therapies for the treatment of muscle degenerative disorders should not only regenerate fibers, but provide a quiescent satellite cell pool ensuring long-term maintenance and regeneration. Conditional expression of Pax3/Pax7 in differentiating pluripotent stem cells (PSC) allows the generation of myogenic progenitors endowed with satellite cell-like abilities. To identify the molecular determinants underlying their regenerative potential, we performed transcriptome analyses of these cells along with primary myogenic cells from several developmental stages. Here we show that in vitro generated PSC-derived myogenic progenitors possess a molecular signature similar to embryonic/fetal myoblasts. However, compared to fetal myoblasts, following transplantation they show superior myofiber engraftment and ability to seed the satellite cell niche, respond to multiple re-injuries and contribute to long-term regeneration. Upon engraftment, the transcriptome of Pax3/Pax7-induced PSC-derived myogenic progenitors changes dramatically, acquiring similarity to that of satellite cells, particularly in genes involved in extracellular matrix remodeling. Single cell profiling reveals that these changes are induced, not selected, by the in vivo environment. These findings demonstrate that Pax3/Pax7-induced PSC-derived myogenic progenitors possess proliferative and migratory abilities characteristic of earlier developmental stages, and an intrinsic ability to respond to environmental cues upon skeletal muscle regeneration.
2019-02-13 | GSE123595 | GEO