Utrophin upregulation in Duchenne muscular dystrophy. 2005

R C Hirst, and K J A McCullagh, and K E Davies
MRC Functional Genetics Unit, Department of Human Anatomy and Genetics, South Parks Road, Oxford, UK.

Duchenne Muscular Dystrophy (DMD) is a devastating, progressive muscle wasting disease for which there is currently no effective treatment. DMD is caused by mutations in the dystrophin gene many of which result in the absence of the large cytoskeletal protein dystrophin at the sarcolemma. Over-expression of utrophin, the autosomal paralogue of dystrophin, as a transgene in the mdx mouse (the mouse model of DMD) has demonstrated that utrophin can prevent the muscle pathology. Thus, up-regulation of utrophin in DMD muscle is a potential therapy for DMD. In this review we discuss recent advances in our understanding of the regulatory pathways controlling utrophin expression and the various approaches that have been applied to increasing the level of utrophin in the mdx mouse. These results are very encouraging and suggest that pharmacological up-regulation of utrophin may well be a feasible approach to therapy for DMD.

UI MeSH Term Description Entries
D004285 Dogs The domestic dog, Canis familiaris, comprising about 400 breeds, of the carnivore family CANIDAE. They are worldwide in distribution and live in association with people. (Walker's Mammals of the World, 5th ed, p1065) Canis familiaris,Dog
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000818 Animals Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. Animal,Metazoa,Animalia
D014158 Transcription, Genetic The biosynthesis of RNA carried out on a template of DNA. The biosynthesis of DNA from an RNA template is called REVERSE TRANSCRIPTION. Genetic Transcription
D015854 Up-Regulation A positive regulatory effect on physiological processes at the molecular, cellular, or systemic level. At the molecular level, the major regulatory sites include membrane receptors, genes (GENE EXPRESSION REGULATION), mRNAs (RNA, MESSENGER), and proteins. Receptor Up-Regulation,Upregulation,Up-Regulation (Physiology),Up Regulation
D049411 Utrophin An autosomally-encoded 376-kDa cytoskeletal protein that is similar in structure and function to DYSTROPHIN. It is a ubiquitously-expressed protein that plays a role in anchoring the CYTOSKELETON to the PLASMA MEMBRANE. Dystrophin-Related Protein,Dystrophin-Related Protein 1,UTRN Protein,Dystrophin Related Protein,Dystrophin Related Protein 1
D020388 Muscular Dystrophy, Duchenne An X-linked recessive muscle disease caused by an inability to synthesize DYSTROPHIN, which is involved with maintaining the integrity of the sarcolemma. Muscle fibers undergo a process that features degeneration and regeneration. Clinical manifestations include proximal weakness in the first few years of life, pseudohypertrophy, cardiomyopathy (see MYOCARDIAL DISEASES), and an increased incidence of impaired mentation. Becker muscular dystrophy is a closely related condition featuring a later onset of disease (usually adolescence) and a slowly progressive course. (Adams et al., Principles of Neurology, 6th ed, p1415) Becker Muscular Dystrophy,Duchenne Muscular Dystrophy,Muscular Dystrophy, Becker,Muscular Dystrophy, Pseudohypertrophic,Becker's Muscular Dystrophy,Cardiomyopathy, Dilated, 3B,Cardiomyopathy, Dilated, X-Linked,Childhood Muscular Dystrophy, Pseudohypertrophic,Childhood Pseudohypertrophic Muscular Dystrophy,Duchenne and Becker Muscular Dystrophy,Duchenne-Becker Muscular Dystrophy,Duchenne-Type Progressive Muscular Dystrophy,Muscular Dystrophy Pseudohypertrophic Progressive, Becker Type,Muscular Dystrophy, Becker Type,Muscular Dystrophy, Childhood, Pseudohypertrophic,Muscular Dystrophy, Duchenne Type,Muscular Dystrophy, Duchenne and Becker Types,Muscular Dystrophy, Pseudohypertrophic Progressive, Becker Type,Muscular Dystrophy, Pseudohypertrophic Progressive, Duchenne Type,Muscular Dystrophy, Pseudohypertrophic, Childhood,Progressive Muscular Dystrophy, Duchenne Type,Pseudohypertrophic Childhood Muscular Dystrophy,Pseudohypertrophic Muscular Dystrophy, Childhood,Duchenne Becker Muscular Dystrophy,Duchenne Type Progressive Muscular Dystrophy,Muscular Dystrophy, Becker's,Muscular Dystrophy, Duchenne-Becker,Pseudohypertrophic Muscular Dystrophy

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