Title |
Absence of γ-sarcoglycan alters the response of p70S6 kinase to mechanical perturbation in murine skeletal muscle
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Published in |
Skeletal Muscle, July 2014
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DOI | 10.1186/2044-5040-4-13 |
Pubmed ID | |
Authors |
Catherine Moorwood, Anastassios Philippou, Janelle Spinazzola, Benjamin Keyser, Edward J Macarak, Elisabeth R Barton |
Abstract |
The dystrophin glycoprotein complex (DGC) is located at the sarcolemma of muscle fibers, providing structural integrity. Mutations in and loss of DGC proteins cause a spectrum of muscular dystrophies. When only the sarcoglycan subcomplex is absent, muscles display severe myofiber degeneration, but little susceptibility to contractile damage, suggesting that disease occurs not by structural deficits but through aberrant signaling, namely, loss of normal mechanotransduction signaling through the sarcoglycan complex. We extended our previous studies on mechanosensitive, γ-sarcoglycan-dependent ERK1/2 phosphorylation, to determine whether additional pathways are altered with the loss of γ-sarcoglycan. |
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