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Tissue macrophage subsets derived from regenerating muscle

ABSTRACT: Muscle injury was elicited by cardiotoxin injection into the tibialis anterior muscle. Macrophages were isolated 2 days post-injury from the regenerating muscle. We used microarray to obtain global gene expression data of muscle-derived tissue macrophage subsets.

ORGANISM(S): Mus musculus

PROVIDER: GSE44057 | GEO | 2014/01/02

SECONDARY ACCESSION(S): PRJNA188463

REPOSITORIES: GEO

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Tissue macrophage subsets derived from regenerating muscle

Project description:Muscle injury was elicited by cardiotoxin injection into the tibialis anterior muscle. Macrophages were isolated 2 days post-injury from the regenerating muscle. We used microarray to obtain global gene expression data of muscle-derived tissue macrophage subsets. Tissue macrophages were collected from regenerating muscle samples of three animals, Ly6C+ F4/80low and Ly6C- F4/80high macrophage subsets were sorted. The global gene expression patterns of distinct macrophage subsets were analyzed on Affymetrix microarrays.

2014-01-02 | E-GEOD-44057 | biostudies-arrayexpress

Identification of a macrophage PPARγ-GDF3 regulatory axis controlling muscle regeneration

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Highly dynamic molecular signature of macrophage subsets during sterile inflammation, resolution and tissue repair

Project description:Tibialis anterior muscle was damaged by cardiotoxin injection and macrophage subsets were isolated and analyzed by gene expression analysis. We used microarray to obtain global gene expression data of muscle-derived tissue macrophage subsets. Tissue macrophages were collected from regenerating muscle samples, Gr1+/Cx3cr1low and Gr1-/Cx3cr1high macrophage subsets were sorted. The global gene expression patterns of distinct macrophage subsets were analyzed on Affymetrix microarrays.

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Dysregulated gene expression in Mef2a knockout mice subjected to cardiotoxin-induced muscle injury

Project description:We identified genes expressed in mouse skeletal muscle, during the process of muscle regeneration after injury, which are dysregulated in the absence of Mef2a expression. MEF2A is a member of the evolutionarily conserved MEF2 transcription factor family which has known roles in cardiac muscle development and function, but is not well studied in skeletal muscle. We performed a comparison of gene expression profiles in wild type and MEF2A knockout tibialis anterior muscle, seven days post-injury with cardiotoxin. The results indicated that a variety of genes expressed during muscle regeneration, predominantly microRNAs in the Gtl2-Dio3 locus, are dysregulated by the loss of MEF2A expression. Skeletal muscle RNA used in the present study included the following two sample groups: (WT) pooled total RNA from tibialis anterior muscle taken from 5 wild type mice at seven days post-injury with 10uM cardiotoxin; (KO) pooled total RNA from tibialis anterior muscle taken from 5 Mef2a knockout mice at seven days post-injury with 10uM cardiotoxin. All mice were between 2-4 months of age. Both male and female mice were used.

2013-02-12 | E-GEOD-41871 | biostudies-arrayexpress

Profiling of glycerol- and CTX-induced models of muscle regeneration in mice

2013-08-16 | GSE45577 | GEO

Profiling of glycerol- and CTX-induced models of muscle regeneration in mice

Project description:Utilizing glycerol and cardiotoxin (CTX) injections in the tibialis anterior muscles of M. musculus provides models of skeletal muscle damages followed by skeletal muscle regeneration. In particular, glycerol-induced muscle regeneration is known to be associated with ectopic adipogenesis. We characterized genome-wide expression profiles of tibialis anterior muscles from wild-type mice injured by either glycerol or CTX injection. Our goal was to detect gene expression changes during the time course of glycerol-induced and CTX-induced muscle regeneration models, that can lead to ectopic adipocyte accumulation. Tibialis anterior muscle of 12 week old wildtype C57BL/6J male mice injected i.m with either glycerol or CTX were collected 3, 7, 14 or 21 days after injection. 6 biological replicates were used for each time points. Please note that a few replicate samples did not pass QC test, thus, were removed from the submission. Unchallenged tibialis anterior muscles from a group of 5 wildtype C57BL/6J mice were also as a control. Total RNA was extracted, QCed and hybridized to Affymetrix microarrays.

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MicroRNA-seq data of mouse during skeletal muscle regeneration after acute injury

Project description:MicroRNAs (miRNAs) are short noncoding RNAs that impact protein expression, regulating a variety of physiological processes. To date, a few miRNAs have been implicated in the process of muscle regeneration after injury; however, our understanding of the miRNAs involved and their regulatory mechanisms remains incomplete.The analysis showed differences of microRNAs in the tibialis anterior muscles at days 0, 1 and 3 post-cardiotoxin injury.

2020-06-04 | GSE141879 | GEO

Samples from mouse skeletal muscle

Project description:samples from mouse Skeletal Muscle, analysis different expression profiling<br>HDAC4：Sciatic nerve transection model was prepared after injection of HDAC4-shRNA lentivirus into the tibialis anterior muscle of mice. 14 days later, tibialis anterior muscle was obtained. DenSciatic nerve transection model was prepared after injection of empty vector virus into the tibialis anterior muscle of mice. 14 days later, tibialis anterior muscle was obtained. N: The empty vector virus was injected into muscles from the sham group. 14 days later, tibialis anterior muscle was obtained.

2021-05-10 | E-MTAB-10072 | biostudies-arrayexpress

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