Dystrophin in skeletal muscle. II. Immunoreactivity in patients with Xp21 muscular dystrophy
- PMID: 2693618
- DOI: 10.1016/0022-510x(89)90224-4
Dystrophin in skeletal muscle. II. Immunoreactivity in patients with Xp21 muscular dystrophy
Abstract
In the preceding paper a sensitive Western blotting analysis system based on the use of a monoclonal antibody to dystrophin was described. Here we report the immunoreactivity on blots and on unfixed frozen sections of muscle from patients with Duchenne (DMD) and Becker (BMD) muscular dystrophy. Muscle from 3 BMD patients showed variation both in the band pattern observed on blots and in the immunocytochemical labelling of dystrophin on frozen sections. In contrast to previous reports, we were able to detect some minor dystrophin bands on blots from 6 of 9 DMD biopsy samples. Tissue sections from 8 of the 9 contained isolated fibres with dystrophin-positive labelling. We conclude that the majority of DMD patients have muscle fibres which can synthesize dystrophin in a limited manner.
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