Collagen VI-related myopathy include severe Ullrich congenital muscular dystrophy (UCMD) and milder Bethlem myopathy. Mutations in each of the three collagen VI genes COL6A1, COL6A2, and COL6A3 cause these diseases. Recently, additional phenotypes, autosomal recessive myosclerosis with mutations in COL6A2 have been reported. Collagen VI is an important component of the extracellular matrix which forms a microfibrillar network that is found in close association with the cell and surrounding basement membrane. Thus, collagen VI mutations result in disorders with combined muscle and connective tissue involvement, including weakness, joint and contractures, and abnormal skin findings.
Category
Nervous system disease; Musculoskeletal disease
Brite
Human diseases in ICD-11 classification [BR:br08403]
08 Diseases of the nervous system
Diseases of neuromuscular junction or muscle
Primary disorders of muscles
8C70 Muscular dystrophy
H01341 Collagen VI myopathy
Pathway-based classification of diseases [BR:br08402]
Cellular process
nt06539 Cytoskeleton in muscle cells
H01341 Collagen VI myopathy