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Gene expression data from Duchenne muscular dystrophy patients versus controls

ABSTRACT: gene expression data is from RNA extracted from muscle biopsy samples taken from boys with Duchenne muscular dystrophy (DMD) or pathologically normal controls (CTRL). Each muscle biospy was examined in detail histologically by Dr. Eric P. Hoffman at Children's National Medical Center to determine stage of disease. In addition, the absence or presence of dystrophin was determined via western blot analyses. We utilized Human U133 2.0 arrays to examine the transcriptome of each muscle, and then we compared differential gene expression between DMD patient muscles and CTRL muscules. We set the FDR p value for significance at 0.05 and at least a 1.5 fold difference in DMD/CTRL

ORGANISM(S): Homo sapiens

PROVIDER: GSE38417 | GEO | 2016/07/01

SECONDARY ACCESSION(S): PRJNA167804

REPOSITORIES: GEO

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Gene expression data from Duchenne muscular dystrophy patients versus controls

Project description:gene expression data is from RNA extracted from muscle biopsy samples taken from boys with Duchenne muscular dystrophy (DMD) or pathologically normal controls (CTRL). Each muscle biospy was examined in detail histologically by Dr. Eric P. Hoffman at Children's National Medical Center to determine stage of disease. In addition, the absence or presence of dystrophin was determined via western blot analyses. We utilized Human U133 2.0 arrays to examine the transcriptome of each muscle, and then we compared differential gene expression between DMD patient muscles and CTRL muscules. We set the FDR p value for significance at 0.05 and at least a 1.5 fold difference in DMD/CTRL compared differential gene exrpression between DMD versus Control

2016-07-01 | E-GEOD-38417 | biostudies-arrayexpress

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Project description:Large animal models for Duchenne muscular dystrophy (DMD) are indispensible for preclinical evaluation of novel diagnostic procedures and treatment strategies. To evaluate functional consequences of Duchenne muscular dystrophy (DMD) in skeletal muscle and myocardium, we used a new genetically engineered dystrophin KO pig model displaying hallmarks of human DMD. Heart and skeletal muscle tissue samples of DMD pigs and wild-type (WT) controls at three different ages were analyzed by label-free proteomics.

2021-12-01 | PXD027772 | Pride

In vivo genome editing restores dystrophin expression in Duchenne muscular dystrophy patient muscle fibers [WES]

Project description:Duchenne muscular dystrophy (DMD) is the most common fatal genetic disease. Clustered regularly interspaced short palindromic repeat (CRISPR)-mediated gene editing is a promising strategy for permanently curing DMD. In this study we developed a novel strategy for reframing DMD mutations by CRISPR-mediated large-scale excision of exons 46–54. We compared this approach to other DMD rescue strategies using DMD patient-derived primary muscle-derived stem cells (MDSCs) and found that it showed the highest efficiency in terms of restoring of dystrophin protein expression. We also confirmed that CRISPR from Prevotella and Francisella 1(Cpf1)-mediated genome editing could correct DMD mutation with higher specificity than CRISPR-associated protein 9 (Cas9). Furthermore, A patient-derived xenograft (PDX) DMD mouse model was established by transplanting DMD-MDSCs into immunodeficient mice. CRISPR gene editing components were intramuscularly delivered into the mouse model by adeno-associated virus vectors. Dystrophin expression levels were increased by 10%–30% in human DMD muscle fibers. The restored dystrophin in vivo was functional, as demonstrated by the expression of the dystrophin glycoprotein complex member β-dystroglycan. This study provides a sensitive indicator for in vivo efficacy of gene editing and lays the foundation for a clinical trial of DMD treatment with gene editing technology.

2021-02-28 | GSE167586 | GEO

In vivo genome editing restores dystrophin expression in Duchenne muscular dystrophy patient muscle fibers [RNA-seq]

2021-02-28 | GSE167585 | GEO

In vivo genome editing restores dystrophin expression in Duchenne muscular dystrophy patient muscle fibers [Nanopore sequencing]

2021-02-28 | GSE167584 | GEO

In vivo genome editing restores dystrophin expression in Duchenne muscular dystrophy patient muscle fibers [GUIDE-seq]

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In vivo genome editing restores dystrophin expression in Duchenne muscular dystrophy patient muscle fibers [Amplicon-seq]

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Proteome analysis of skeletal muscle samples from a porcine model of Duchenne muscular dystrophy

Project description:Duchenne muscular dystrophy (DMD) is caused by genetic deficiency of dystrophin and characterized by massive structural and functional changes of skeletal muscle tissue, leading to terminal muscle failure. In this project, proteomics data from skeletal muscle of a genetically engineered DMD pig model were investigated in order to confirm muscular fibrosis and MSOT signals.

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Proteome analysis of skeletal muscle samples from a porcine model of Duchenne muscular dystrophy treated by somatic gene editing

2020-02-05 | PXD014893 | Pride

Systemic deletion of DMD exon 51 rescues clinically severe Duchenne muscular dystrophy in a pig model lacking DMD exon 52

Project description:Duchenne muscular dystrophy (DMD) is a fatal X-linked disease caused by mutations in the dystrophin (DMD) gene, leading to the complete absence of DMD and progressive degeneration of skeletal and heart muscles. Expression of an internally shortened dystrophin in DMD subjects (DMDΔ52) can be achieved by skipping DMD exon 51 to reframe the transcript. To predict the best possible outcome of this therapeutic strategy, we generated transgenic pigs lacking DMD exon 51 and 52, additionally representing a new model for Becker muscular dystrophy (BMD). To inspect the proteome alterations caused by the different dystrophin mutations in an unbiased and comprehensive manner, we performed a label-free liquid chromatography-tandem mass spectrometry analysis (LC-MS/MS) of myocardial and skeletal muscle samples from wild-type (WT), DMDΔ52 and DMDΔ51-52 pigs.

2023-07-11 | PXD039533 | Pride

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