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A role for caveolin-3 in the pathogenesis of the mdx mouse

Larner, Dean Paul (2012)
Ph.D. thesis, University of Birmingham.

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Abstract

Duchenne muscular dystrophy (DMD) is a muscle-wasting disease caused by the loss of sarcolemmal protein dystrophin. In DMD and the mouse model of the disease mdx, there is an increase in an associated protein, caveolin-3. In this study, mdx mice with deficiencies in caveolin-3 were generated to allow a distinction to be made between the pathology caused by the loss of dystrophin and that caused by an excess of caveolin-3.

It was found that in late gestation embryos, there were perturbations in skeletal muscle stem cell populations and depletion of respiratory muscles in mdx and mdx/cav3\(^{+/-}\), both of which were more severe in mdx/cav3\(^{+/-}\) embryos. In post natal skeletal muscles, there was a trend in that the level of regeneration, believed to be indicative of previous degeneration, was consistently greater in mdx than mdx/cav3\(^{+/-}\). Taken together it would appear whereas increased caveolin-3 may compensate for the lack of dystrophin in embryonic mdx muscle; post natally, it may contribute to the muscle regeneration observed in mdx.

The data presented in this thesis should help towards clarifying the contribution of caveolin-3 in the pathogenesis of DMD and in doing so expand on the understanding of the molecular aetiology of the disease.

Type of Work:Ph.D. thesis.
Supervisor(s):Smith, Janet
School/Faculty:Colleges (2008 onwards) > College of Life & Environmental Sciences
Department:School of Biosciences
Subjects:QH301 Biology
RB Pathology
Institution:University of Birmingham
ID Code:3244
This unpublished thesis/dissertation is copyright of the author and/or third parties. The intellectual property rights of the author or third parties in respect of this work are as defined by The Copyright Designs and Patents Act 1988 or as modified by any successor legislation. Any use made of information contained in this thesis/dissertation must be in accordance with that legislation and must be properly acknowledged. Further distribution or reproduction in any format is prohibited without the permission of the copyright holder.
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