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| Content Provider | PubMed Central |
|---|---|
| Author | Luibl, Volker Isas, Jose M. Kayed, Rakez Glabe, Charles G. Langen, Ralf Chen, Jeannie |
| Copyright Year | 2006 |
| Abstract | Protein misfolding and aggregation are thought to underlie the pathogenesis of many amyloid diseases, such as Alzheimer and Parkinson diseases, whereby a stepwise protein misfolding process begins with the conversion of soluble protein monomers to prefibrillar oligomers and progresses to the formation of insoluble amyloid fibrils. Drusen are extracellular deposits found in aging eyes and in eyes afflicted with age-related macular degeneration (AMD). Recent characterizations of drusen have revealed protein components that are shared with amyloid deposits. However, characteristic amyloid fibrils have thus far not been identified in drusen. In this study, we tested the hypothesis that nonfibrillar oligomers may be a common link in amyloid diseases. Oligomers consisting of distinct amyloidogenic proteins and peptides can be detected by a recently developed antibody that is thought to recognize a common structure. Notably, oligomers exhibit cellular toxicity, which suggests that they play a role in the pathogenesis of neurodegenerative diseases. Through use of the anti-oligomer antibody, we came to observe the presence of nonfibrillar, toxic oligomers in drusen. Conversely, no reactivity was observed in age-matched control eyes without drusen. These results suggest that amyloid oligomers may be involved in drusen biogenesis and that similar protein misfolding processes may occur in AMD and amyloid diseases. |
| Related Links | http://dx.doi.org/10.1172/jci25843 |
| Ending Page | 385 |
| Page Count | 8 |
| Starting Page | 378 |
| File Format | |
| ISSN | 00219738 |
| Journal | Journal of Clinical Investigation |
| Issue Number | 2 |
| Volume Number | 116 |
| Language | English |
| Publisher | American Society for Clinical Investigation |
| Publisher Date | 2006-01-01 |
| Access Restriction | Open |
| Rights Holder | American Society for Clinical Investigation |
| Subject Keyword | Medicine(all) Research in Higher Education |
| Content Type | Text |
| Resource Type | Article |
| Subject | Medicine |
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