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Replacing skeletal muscle alpha-actin with cardiac actin in mouse skeletal muscle

ABSTRACT: Skeletal muscle actin mice (Crawford et al., (2002) Mol Cell Biol 22, 5587) were crossed with cardiac actin transgenic mice (termed "ACTC^Coco" or "Coco" for short), to produce mice that had cardiac actin instead of skeletal muscle actin in their skeletal muscles (termed "ACTC^Co/KO" or for short "Coco/KO"). Microarray analysis using the Illumina mouse-6 v1.1 expression beadchip was performed on RNA extraced from the soleus muscle of Coco/KO mice and wildtype mice, to confirm the swith in actin isoform expression, and to determine what other differences might exist between wildtype mice and the Coco/KO mice. Keywords: genetic modification 3 RNA samples (each being the pool of two individual samples extracted from different soleus muscles from different individual mice) per genotype (either wildtype or Coco/KO) were used. The total 6 RNA samples were processed using an Illumina mouse-6 v1.1expression beadchip and then the differentially expressed genes determined.

ORGANISM(S): Mus musculus

SUBMITTER: Kristen Nowak

PROVIDER: E-GEOD-12882 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

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Replacing skeletal muscle alpha-actin with cardiac actin in mouse skeletal muscle

Project description:Skeletal muscle actin mice (Crawford et al., (2002) Mol Cell Biol 22, 5587) were crossed with cardiac actin transgenic mice (termed "ACTC^Coco" or "Coco" for short), to produce mice that had cardiac actin instead of skeletal muscle actin in their skeletal muscles (termed "ACTC^Co/KO" or for short "Coco/KO"). Microarray analysis using the Illumina mouse-6 v1.1 expression beadchip was performed on RNA extraced from the soleus muscle of Coco/KO mice and wildtype mice, to confirm the swith in actin isoform expression, and to determine what other differences might exist between wildtype mice and the Coco/KO mice. Keywords: genetic modification

2009-05-25 | GSE12882 | GEO

Effect of insulin insufficiency on ultrastructure and function in skeletal muscle

Project description:Decreased insulin availability and high blood glucose levels, the hallmark features of poorly controlled diabetes, drive disease progression and are associated with decreased skeletal muscle mass. We have shown that mice with -cell dysfunction and normal insulin sensitivity have decreased skeletal muscle mass. This project asks how insulin deficiency impacts on the structure and function of the remaining skeletal muscle in these animals. Methods: Skeletal muscle function was determined by measuring exercise capacity and specific muscle strength prior to and after insulin supplementation for 28 days in 12-week-old mice with conditional -cell deletion of the ATP binding cassette transporters ABCA1 and ABCG1 (β-DKO mice). Abca1 and Abcg1 floxed (fl/fl) mice were used as controls. RNAseq was used to quantify changes in transcripts in soleus and extensor digitorum longus muscles. Skeletal muscle and mitochondrial morphology were assessed by transmission electron microscopy. Myofibrillar Ca2+ sensitivity and maximum isometric single muscle fibre force were assessed using MyoRobot biomechatronics technology. Results: RNA transcripts were significantly altered in β-DKO mice compared to fl/fl controls (32 in extensor digitorum longus and 412 in soleus). Exercise capacity and muscle strength were significantly decreased in β-DKO mice compared to fl/fl controls (p = 0.012), and a loss of structural integrity was also observed in skeletal muscle from the β-DKO mice. Supplementation of β-DKO mice with insulin restored muscle integrity, strength and expression of 13 and 16 of the dysregulated transcripts in and extensor digitorum longus and soleus muscles, respectively. Conclusions: Insulin insufficiency due to -cell dysfunction perturbs the structure and function of skeletal muscle. These adverse effects are rectified by insulin supplementation.

2023-09-26 | E-MTAB-13315 | biostudies-arrayexpress

Transcriptome analysis of mouse muscle

Project description:This SuperSeries is composed of the following subset Series: GSE8549: Transcriptome of reloaded soleus muscle of 129/SV mice GSE8550: Transcriptome of soleus muscle of Tenascin-C deficient 129/SV mice GSE8551: Transcriptome of reloaded soleus muscle of Tenascin-C deficient 129/SV mice GSE8552: Transcriptome of soleus muscle of 129/SV mice Keywords: SuperSeries Refer to individual Series

2010-06-25 | E-GEOD-10050 | biostudies-arrayexpress

A Dach2-Hdac9-Myog-Gdf5 signaling system regulates regeneration of neuromuscular synapses

Project description:Muscle denervation due to injury, disease or aging results in impaired motor function. Restoring neuromuscular communication requires axonal regrowth and regeneration of neuromuscular synapses. Muscle activity inhibits neuromuscular synapse regeneration. The mechanism by which muscle activity regulates regeneration of synapses is poorly understood. Dach2 and Hdac9 are activity-regulated transcriptional co-repressors that are highly expressed in innervated muscle and suppressed following muscle denervation. Here, we report that Dach2 and Hdac9 inhibit regeneration of neuromuscular synapses. Importantly, we identified Myog and Gdf5 as muscle-specific Dach2/Hdac9-regulated genes that stimulate neuromuscular regeneration in denervated muscle. Interestingly, Gdf5 also stimulates presynaptic differentiation and inhibits branching of regenerating neurons. Finally, we found that Dach2 and Hdac9 suppress miR206 expression, a microRNA involved in enhancing neuromuscular regeneration. RNAseq on innervated and 3 day denervated adult soleus muscle from wildtype mice is compared with that from 3 day denervated soleus muscle from Dach2/Hdac9 deleted mice to identify Dach2/Hdac9-regulated genes.

2015-10-29 | E-GEOD-58669 | biostudies-arrayexpress

RNA-seq from soleus muscle of NO66-/- and NO66F/F mice

Project description:The aim of this experiment was to evaluate the effect of NO66 loss on gene expression in skeletal muscles. Soleus muscle samples were collected from 8-week-old male mice and RNA-seq performed to examine the genes and signaling pathways involved. In data files, R146 is from control NO66F/F, R147 is from NO66-/-

2018-10-25 | E-MTAB-7285 | biostudies-arrayexpress

Gene expression profile in mouse skeletal muscle after Mettl21c deletion

Project description:Analysis of soleus (SOL) muscle isolated from wildtype (WT) and Mettl21cLacZ/LacZ mice (KO). Results provide unbiased gene expression profile of SOL muscle after Mettl21c deletion.

2022-10-01 | GSE122053 | GEO

Exercise training induces depot-specific remodelling of protein secretion in skeletal muscle and adipose tissue of obese male mice

Project description:Assessment of secreted proteins from EDL and soleus muscle, as well as visceral and subcutaneous adipose tissue of sedentary and exercise-trained obese male mice.

2024-10-21 | PXD043929 | Pride

PolyA RNA sequencing of soleus muscles of WT and LSD1-mKO mice after voluntary wheel running

Project description:To understand the role of LSD1 in transcriptional regulation in muscle under voluntary wheel running (VWR) training, RNA-seq analyses of soleus muscles of skeletal muscle-specific LSD1 KO mice (LSD1-mKO mice) and WT mice after VWR were carried out. We found that loss of LSD1 led to increased expression of oxidative metabolism genes in soleus muscle.

2023-01-24 | GSE198827 | GEO

PolyA RNA sequencing of gastrocnemius and soleus muscles of WT and LSD1-mKO mice under dexamethasone administration

Project description:To understand the role of LSD1 in transcriptional regulation in muscle under glucocorticoid stress, RNA-seq analyses of gastrocnemius and soleus muscles of skeletal muscle-specific LSD1 KO mice (LSD1-mKO mice) and WT mice after dexamethasone were carried out. We found that LSD1 inhibition led to increased expression of muscle atrophy associated genes and slow fiber genes in gastrocnemius muscle but not in soleus muscle.

2023-01-24 | GSE198826 | GEO

Circadian transcriptome of fast tibialis anterior (TA) and slow soleus (SOL) skeletal muscles from muscle-specific Bmal1 KO and control Cre- littermates

Project description:To investigate the role of the circadian clock gene Bmal1 in skeletal muscle, we compared the circadian transcriptomes of fast tibialis anterior (TA) and slow soleus (SOL) skeletal muscles from muscle-specific Bmal1 KO (mKO) and their control Cre- littermates (Ctrl). Keyword: Circadian Transcriptome, time course 72 samples were analyzed, comprised of 4 experimental groups (Ctrl SOL, mKO SOL, Ctrl TA, mKO TA), with 3 biological replicates for each time point sampled every 4 hours for 24 hours. SOL and TA muscles were collected from the same animals, as indicated by Source Animal ID data column

2014-01-01 | E-GEOD-43071 | biostudies-arrayexpress

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