Lack of robust satellite cell activation and muscle regeneration during the progression of Pompe disease.
Schaaf GJ, van Gestel TJ, Brusse E, Verdijk RM, de Coo IF, van Doorn PA, van der Ploeg AT, Pijnappel WW
Acta neuropathologica communications, 2015 Oct 28
Abstract
Muscle stem cells termed satellite cells are essential for muscle regeneration. A central question in many neuromuscular disorders is why satellite cells are unable to prevent progressive muscle wasting. We have analyzed muscle fiber pathology and the satellite cell response in Pompe disease, a metabolic myopathy caused by acid alpha-glucosidase deficiency and lysosomal glycogen accumulation. Pathology included muscle fiber vacuolization, loss of cross striation, and immune cell infiltration.