Neurofibrillary lesions in experimental aluminum-induced encephalopathy and Alzheimer's disease share immunoreactivity for amyloid precursor protein, Aβ, α1-antichymotrypsin and ubiquitin-protein conjugates

Autor: Jia Liu, Michael R. Wills, Christos D. Katsetos, Mary M. Herman, Yue Huang, John Savory
Rok vydání: 1997
Předmět:
Zdroj: Brain Research. 771:213-220
ISSN: 0006-8993
DOI: 10.1016/s0006-8993(97)00780-4
Popis: Neurofibrillary tangles of Alzheimer's disease contain predominantly tau protein and to a lesser degree amyloid precursor protein (APP), A beta protein, alpha 1-antichymotrypsin (ACT) and ubiquitin. Previously we have demonstrated the presence of phosphorylated tau and neurofilament proteins in neurofibrillary degeneration (NFD) induced by aluminum (Al) maltolate in rabbits [Savory et al., Brain Res. 669 (1995) 325-329; Savory et al., Brain Res. 707 (1996) 272-281]. Using the same animal system we have now detected APP, A beta, ACT and ubiquitin-like immunoreactivities in NFD-bearing neurons, often colocalizing in the NFD. Diffuse cytoplasmic staining for APP, A beta and ubiquitin was also present in neurons without NFD from Al maltolate-treated rabbits. This study provides additional support for immunochemical similarities between Al-induced NFD in rabbits and the neurofibrillary tangles in human subjects with Alzheimer's disease.
Databáze: OpenAIRE