Sarcoglycanopathies are a group of autosomal recessive limb-girdle muscular dystrophies (LGMD) caused by mutations in sarcoglycan genes: SGCA (LGMD 2D, MIM 600119), SGCB (LGMD 2E, MIM 604286), SGCG (LGMD 2C, MIM 353700), and SGCD (LGMD 2F, MIM 601287). These genes encode four transmembrane sarcoglycan subunits participating in formation of the large sarcolemmal dystrophin- glycoprotein complex. Clinical symptoms of sarcoglycanopathies resemble the ones in Duchenne/Becker muscular dystrophy and several autosomal recessive LGMD, which causes difficulties in the differential diagnostics between these diseases. This review covers the main aspects of sarcoglycanopathies, such as etiology, spectrum of mutations, clinical features and diagnostics. In addition, we review the fundamental pathogenesis mechanisms leading to sarcoglycanopathies, which can also help to understand the potential options for treatment for patients with muscular dystrophies.
Russian Journal of Genetics – Springer Journals
Published: Mar 12, 2018
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