To determine whether redox factor-1 (Ref-1) participates in the pathogenesis of inclusion-body myositis (IBM), we immunolocalized Ref-1 in muscle biopsies of IBM patients by light- and electron-microscopy. Approximately 70-80% of the IBM vacuolated muscle fibers had focal inclusions strongly immunoreactive for Ref-1. By immunoelectronmicroscopy, Ref-1 was localized to paired-helical filaments, 6-10 nm amyloid-like fibrils and amorphous material. Virtually all regenerating and necrotic muscle fibers in various muscle biopsies had diffusely strong Ref-1 immunoreactivity. At all neuromuscular junctions, postsynaptically there was strong Ref-1 immunoreactivity. Our study suggests that Ref-1 plays a role in IBM pathogenesis, and in other pathologic and normal processes of human muscle
Broccolini, A., Engel, W. K., Alvarez, R., Askanas, V., Redox factor-1 in muscle biopsies of patients with inclusion-body myositis, <<NEUROSCIENCE LETTERS>>, 2000; (287): 1-4 [http://hdl.handle.net/10807/8453]
Autori: | |
Titolo: | Redox factor-1 in muscle biopsies of patients with inclusion-body myositis |
Data di pubblicazione: | 2000 |
Abstract: | To determine whether redox factor-1 (Ref-1) participates in the pathogenesis of inclusion-body myositis (IBM), we immunolocalized Ref-1 in muscle biopsies of IBM patients by light- and electron-microscopy. Approximately 70-80% of the IBM vacuolated muscle fibers had focal inclusions strongly immunoreactive for Ref-1. By immunoelectronmicroscopy, Ref-1 was localized to paired-helical filaments, 6-10 nm amyloid-like fibrils and amorphous material. Virtually all regenerating and necrotic muscle fibers in various muscle biopsies had diffusely strong Ref-1 immunoreactivity. At all neuromuscular junctions, postsynaptically there was strong Ref-1 immunoreactivity. Our study suggests that Ref-1 plays a role in IBM pathogenesis, and in other pathologic and normal processes of human muscle |
Lingua: | Inglese |
Rivista: | |
Citazione: | Broccolini, A., Engel, W. K., Alvarez, R., Askanas, V., Redox factor-1 in muscle biopsies of patients with inclusion-body myositis, <<NEUROSCIENCE LETTERS>>, 2000; (287): 1-4 [http://hdl.handle.net/10807/8453] |
Appare nelle tipologie: | Articolo in rivista, Nota a sentenza |