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Effect of the lack of dystrophin on the gene expression profile of hiPSC-derived cardiomyocytes

ABSTRACT: Searching for the new molecular signatures of Duchenne muscular dystrophy (DMD)-associated cardiomyopathy development

ORGANISM(S): Homo sapiens

PROVIDER: GSE226170 | GEO | 2024/02/26

REPOSITORIES: GEO

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Molecular profiles (HG-U95A) of dystrophin-deficient and normal human muscle

Project description:Molecular profiles of dystophin-deficient patients and normal human skeletal muscles on Affymetrix HG-U95A arrays Keywords = DMD Keywords = Duchenne muscular dystrophy Keywords = dystrophin Keywords = Affymetrix U95A array Keywords = skeletal muscle Keywords = gene expression profiles Keywords: other

2004-01-29 | E-GEOD-1004 | biostudies-arrayexpress

Molecular profiles (HG-U95A) of dystrophin-deficient and normal human muscle

2004-01-29 | GSE1004 | GEO

Jarrah2014 - mathematical model of the immune response in muscle degeneration and subsequent regeneration in Duchenne muscular dystrophy in mdx mice

Project description:Duchenne muscular dystrophy (DMD) is a genetic disease that results in the death of affected boys by early adulthood.The genetic defect responsible for DMD has been known for over 25 years, yet at present there is neither cure nor effective treatment for DMD. During early disease onset, the mdx mouse has been validated as an animal model for DMD and use of this model has led to valuable but incomplete insights into the disease process. For example, immune cells are thought to be responsible for a significant portion of muscle cell death in the mdx mouse; however, the role and time course of the immune response in the dystrophic process have not been well described. In this paper we constructed a simple mathematical model to investigate the role of the immune response in muscle degeneration and subsequent regeneration in the mdx mouse model of Duchenne muscular dystrophy. Our model suggests that the immune response contributes substantially to the muscle degeneration and regeneration processes. Furthermore, the analysis of the model predicts that the immune system response oscillates throughout the life of the mice, and the damaged fibers are never completely cleared.

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A scalable, clinically severe pig model for Duchenne muscular dystrophy

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.

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Array profiling of dystrophin-deficient mice with a secondary glycosylation defect

Project description:A deletion in the CMAH gene in humans occurred approximately 3.5 million years ago. This resulted in the inactivation of the CMP-Neu5Ac hydroxylase enzyme, and hence, in the specific deficiency in N-glycolylneuraminic acid (Neu5Gc), a form of sialic acid, in all modern humans. Although there is evidence that this molecular milestone in the origin of humans may have led to the evolution of human-specific pathogens, how deficiency in Neu5Gc might alter progression of non-infectious human diseases remains unanswered. Here, we have investigated cardiac and skeletal muscle gene expression changes in mdx mice, a model of Duchenne muscular dystrophy (DMD), that do or do not carry the human-like inactivating mutation in the mouse Cmah gene. We have evidence that Neu5Gc-deficiency in humans might explain some of the discrepancies in the disease phenotype between mdx mice and DMD patients. The study had four groups of mice: 1) Wild type, 2) Cmah KO (mice carrying a human-like mutation in the Cmah gene and hence have human-like deficiency in Neu5Gc sialic acid), 3) mdx (mouse model for Duchenne Muscular Dystrophy), and 4) mdx mice deficient in Cmah. Gene expression was studied in heart and gastrocnemius muscle samples. Three replicates per group/tissue.

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Loss of full-length dystrophin expression causes major cell-autonomous abnormalities in proliferating myoblasts

Project description:Duchenne muscular dystrophy (DMD) is a severely debilitating and incurable neuromuscular disease. Its conspicuous feature is the absence of dystrophin in myofibers and therefore most therapeutic approaches focus on some form of its re-expression there. However, increasing body of evidence points at an early developmental onset of DMD and severe abnormalities were uncovered in dystrophic muscle stem cells. In this study, we explore gene expression changes in primary myoblasts from mice lacking expression of the full length dystrophin transcript. Total RNA extracted from primary myoblasts isolated from gastrocnemii of 8 week old male Dmd-mdx (MDX - lacking the full length dystrophin transcript), Dmd-mdx-βgeo (BGEO - lacking all dystrophin expression) and control mice (WT) were subjected to RNA sequencing following ribodepletion, and analysed for the differential expression of genes between groups and the enrichment of gene ontology categories or pathways.

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Transcriptome analysis of cardiac organoids derived from Duchenne Muscular Dystrophy patient-derived inudced pluripotent stem cells

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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.

2020-01-09 | PXD016003 | Pride

CLIP1 and DMD are two novel RNA-binding proteins through computational prediction and experimental validation

Project description:Since RBPs play important roles in the cell, it’s particularly important to find new RBPs. We performed iRIP-seq and CLIP-seq to verify two proteins, CLIP1 and DMD, predicted by RBPPred whether are RBPs or not. The experimental results confirm that these two proteins have RNA-binding activity. We identified significantly enriched binding motifs UGGGGAGG, CUUCCG and CCCGU for CLIP1 (iRIP-seq), DMD (iRIP-seq) and DMD (CLIP-seq), respectively. The computational KEGG and GO analysis show that the CLIP1 and DMD share some biological processes and functions. Besides, we found that the SNPs between DMD and its RNA partners may associate with Becker muscular dystrophy, Duchenne muscular dystrophy, Dilated cardiomyopathy 3B and Cardiovascular phenotype. Among the thirteen cancers data, CLIP1 and another 300 genes always co-occur, and 123 of these 300 genes interact with CLIP1. These cancers may be associated with the mutations in both CLIP1 and the genes it interacts with.

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Gene expression profiles using microarrays in diaphragm of normal Beagle dogs and Beagle-based canine muscular dystrophy (CXMDJ) before and 1 hour after initial respiration.

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2012-10-31 | GSE32460 | GEO

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