What is the role of protein aggregation in neurodegeneration?

Christopher A. Ross, Michelle A. Poirier

Research output: Contribution to journalReview articlepeer-review

469 Scopus citations


Neurodegenerative diseases typically involve deposits of inclusion bodies that contain abnormal aggregated proteins. Therefore, it has been suggested that protein aggregation is pathogenic. However, several lines of evidence indicate that inclusion bodies are not the main cause of toxicity, and probably represent a cellular protective response. Aggregation is a complex multi-step process of protein conformational change and accretion. The early species in this process might be most toxic, perhaps through the exposure of buried moieties such as main chain NH and CO groups that could serve as hydrogen bond donors or acceptors in abnormal interactions with other cellular proteins. This model implies that the pathogenesis of diverse neurodegenerative diseases arises by common mechanisms, and might yield common therapeutic targets.

Original languageEnglish (US)
Pages (from-to)891-898
Number of pages8
JournalNature Reviews Molecular Cell Biology
Issue number11
StatePublished - Nov 2005

ASJC Scopus subject areas

  • Molecular Biology
  • Cell Biology


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