Article
Failure to up-regulate transcription of genes necessary for muscle adaptation underlies limb girdle muscular dystrophy 2A (calpainopathy).
Human molecular genetics - 1 Jun 2016
Kramerova Irina, Ermolova Natalia, Eskin Ascia, Hevener Andrea, Quehenberger Oswald, Armando Aaron M, Haller Ronald, Romain Nadine, Nelson Stanley F, Spencer Melissa J
Abstract excerpt
Limb girdle muscular dystrophy 2A is due to loss-of-function mutations in the Calpain 3 (CAPN3) gene. Our previous data suggest that CAPN3 helps to maintain the integrity of the triad complex in skeletal muscle. In Capn3 knock-out mice (C3KO), Ca2+ release and Ca2+/calmodulin kinase II (CaMKII) signaling are attenuated. We hypothesized that calpainopathy may result from a failure to transmit loading-induced...
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