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Genome-wide profiling of 2 month vs >6 month old muscle Treg cells

ABSTRACT: We report age-related gene expression of Treg cells isolated from injured muscle and spleen. Male C57BL/6 Foxp3-GFP reporter mice were injured intramuscularly with cardiotoxin. Tregs were sorted directly into Trizol from injured muscle and spleen 4 days post-injury.

ORGANISM(S): Mus musculus

PROVIDER: GSE76733 | GEO | 2016/01/12

SECONDARY ACCESSION(S): PRJNA308468

REPOSITORIES: GEO

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Genome-wide profiling of 2 month vs >6 month old muscle Treg cells

Project description:We report age-related gene expression of Treg cells isolated from injured muscle and spleen. Male C57BL/6 Foxp3-GFP reporter mice were injured intramuscularly with cardiotoxin. Tregs were sorted directly into Trizol from injured muscle and spleen 4 days post-injury. Gene expression profiling of muscle and splenic Tregs from 2- vs >6-month old mice (biological duplicate for each).

2016-01-12 | E-GEOD-76733 | biostudies-arrayexpress

Genome-wide profiling of muscle Treg cells from IL-33 treated mice

Project description:We report gene expression of Treg cells isolated from injured muscle in IL-33 vs PBS treated mice. Male Foxp3-GFP C57BL/6 reporter (2 months old) mice were injured intramuscularly with cardiotoxin/rIL-33 (0.3 ug/muscle). Tregs were sorted directly into Trizol from injured muscle 4 days post-injury. Gene expression profiling of muscle Tregs from IL-33 vs PBS injured mice.

2016-01-12 | E-GEOD-76722 | biostudies-arrayexpress

Genome-wide profiling of muscle Treg cells from IL-33 treated mice

2016-01-12 | GSE76722 | GEO

Regulatory T cells from injured skeletal muscle

Project description:A phenotypically and functionally distinct population of CD4+ Foxp3+ T cells (Tregs) rapidly accumulates in acutely injured skeletal muscle of mice, just as invading myeloid-lineage cells switch from a pro-inflammatory to a pro-regenerative state. Analysis of gene expression of Tregs and CD4+Foxp3- T cells (Tconvs) from injured muscle and spleen revealed that the transcriptome of muscle Treg cells is distinct from that of splenic Tregs. A set of genes is uniquely expressed by muscle Tregs, while another set is over-expressed by the two muscle populations vis-à-vis their two spleen counterparts. 6 wk-old Foxp3-ires-GFP mice were injured in skeletal muscles with cardiotoxin. Four and fourteen days later, Tregs and Tconvs from spleen and muscle were double-sorted into Trizol. To reduce variability, cells from multiple mice were pooled for sorting, and three replicates were generated for all groups. RNA from 1.5-2.5 x 104 cells was amplified, labeled, and hybridized to Affymetrix Mouse Gene 1.0 ST Arrays.

2013-12-15 | E-GEOD-50096 | biostudies-arrayexpress

Effect of Amphiregulin on global gene expression in injured skeletal muscle in the presence or absence of CD4+Foxp3+ regulatory T cells (Tregs).

Project description:Global gene expression analysis of injured skeletal muscle showed that amphiregulin (Areg), a growth factor over-expressed by muscle Treg cells, enhances muscle regeneration both in the presence and in the absence of Tregs. Foxp3-DTR+ and Foxp3-DTR- mice were injured with cardiotoxin in TA muscle at day 0 and treated with diphtheria toxin every other day from day 0 until dissection. Amphiregulin or PBS were administered im on day 0 and ip every other day until dissection. TA muscle was flash-frozen and RNA was extracted using Trizol. RNA from whole tissue samples was amplified, labeled, and hybridized to Affymetrix Mouse Gene 1.0 ST Arrays.

2013-12-15 | E-GEOD-50097 | biostudies-arrayexpress

Regulatory T cells from injured skeletal muscle

2013-12-15 | GSE50096 | GEO

Transcriptional characterization of tissue-Tregs and whole tissues of skeletal muscles in muscle Treg TCR transgenic mice.

Project description:Foxp3+CD4+ regulatory T cells (Tregs) play important roles in controlling both homeostatic processes and immune responses at the tissue and organismal levels. For example, Tregs promote muscle regeneration in acute or chronic injury models by direct effects on local muscle progenitor cells as well as on infiltrating inflammatory cells. Muscle Tregs have a transcriptome, a T cell receptor (TCR) repertoire and effector capabilities distinct from those of classical, lymphoid-organ Tregs, but it has proven difficult to study the provenance and functions of these unique features due to the rarity of muscle Tregs and their fragility upon isolation. Here, we attempted to side-step these hindrances by generating, characterizing and employing a line of mice carrying rearranged transgenes encoding the TCRα and TCRβ chains from a Treg clone rapidly and specifically expanded within acutely injured hindlimb muscle of young mice. Tregs displaying the transgene-encoded TCR preferentially accumulated in injured hindlimb muscle in a TCR-dependent manner both in the straight transgenic model and in adoptive-transfer systems; non-Treg CD4+ T cells expressing the same TCR did not specifically localize in injured muscle. The definitive muscle-Treg transcriptome was not established until the transgenic Tregs inhabited muscle. When crossed onto the mdx model of Duchenne muscular dystrophy, the muscle-Treg TCR transgenes drove enhanced accumulation of Tregs in hindlimb muscles and improved muscle regeneration. These findings invoke the possibility of harnessing muscle Tregs or their TCRs for treatment of skeletal muscle pathologies.

2019-12-31 | GSE140419 | GEO

Gene expression profiling of injured skeletal muscle in the presence or absence of CD4+Foxp3+ regulatory T cells (Tregs).

Project description:A comparative analysis of gene expression of injured skeletal muscle from wild-type (Foxp3-DTR-) and Treg-depleted (Foxp3-DTR+) mice showed that Treg cells are critical for effective repair and regeneration of acute injury of skeletal muscle. Foxp3-DTR+ and Foxp3-DTR- mice were injured with cardiotoxin in TA muscle at day 0 and treated with diphtheria toxin every other day from day 0 until dissection on day 4 or 8. TA muscle was flash-frozen and RNA was extracted using Trizol. RNA from whole tissue samples was amplified, labeled, and hybridized to Affymetrix Mouse Gene 1.0 ST Arrays.

2013-12-15 | E-GEOD-50094 | biostudies-arrayexpress

Treg cells limit IFN-g production to control macrophage accrual and phenotype during skeletal muscle regeneration

Project description:We report transcriptional characterization of skeletal muscle macrophage subsets in normal and injured muscle after intramuscular injection with cardiotoxin. We profiled transcriptional differences in macrophage subsets from mice depleted of Treg cells using Foxp3-DTR mice. We uncovered an IFN-g-centered regulatory loop, in which Treg cells inhibit NK and T cells to control macrophage accumulation and phenotype during muscle regeneration.

2018-02-08 | GSE110308 | GEO

Role of ST2 expession in regulatory Tcells on muscle regneration

Project description:We describe the effects of Treg ST2 expression on muscle regeneration. We compare regneration from cryo-injured tibialis anterior muscle from Foxp3-Cre/ST2-flox vs Foxp3-Cre mice 8 days post-injury. These analyses from whole muscle provide insight into the role of muscle Tregs in the context of regeneration. The tibialis anterior muscle from male Foxp3-Cre/ST2 flox or Foxp3-Cre/ST2 WT C57BL/6 mice (2 months old) were cryo-injured using a liquid nitrogen chilled metal probe for 8 seconds. 8 days post-injury whole muscle was harvested and snap frozen in liquid nitrogen. Whole muscle was then homogenized directly in TriZol and gene expression profiling was performed on Affymetrix Mouse Gene 1.0 ST Arrays.

2016-01-10 | E-GEOD-76697 | biostudies-arrayexpress

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