Targeting oligomers in neurodegenerative disorders: Lessons from α-synuclein, tau, and amyloid-β peptide

Bharathi Shrikanth Gadad, Gabrielle B. Britton, K. S. Rao

Research output: Contribution to journalReview article

67 Scopus citations

Abstract

Neurodegenerative disorders such as Alzheimer's disease, Parkinson's disease, Prion disease, Huntington's disease, and amyotrophic lateral sclerosis are o increasingly being realized to have common cellular and molecular mechanisms including protein aggregation and inclusion body formation in selected brain regions. The aggregates usually consist of insoluble fibrillar aggregates containing misfolded protein with β-sheet conformation. The most probable explanation is that inclusions and the aggregates symbolize an end stage of a molecular cascade of several events, and that earlier event in the cascade may be more directly tied up to pathogenesis than the inclusions themselves. Small intermediates termed as 'soluble oligomers' in the aggregation process might influence synaptic dysfunction, whereas large, insoluble deposits might function as reservoir of the bioactive oligomers. Compelling evidence suggests the role of misfolded proteins in the form of oligomers might lead to synaptic dysfunction, neuronal apoptosis and brain damage. However, the mechanism by which oligomers trigger neurodegeneration still remains mysterious. The aim of this article is to review the literature around the molecular mechanism and role of oligomers in neurodegeneration and leading approaches toward rational therapeutics.

Original languageEnglish (US)
Pages (from-to)223-232
Number of pages10
JournalJournal of Alzheimer's Disease
Volume24
Issue numberSUPPL. 2
DOIs
StatePublished - 2011

Keywords

  • Aggregation
  • neurodegeneration
  • oligomers
  • therapy
  • toxicity

ASJC Scopus subject areas

  • Neuroscience(all)
  • Clinical Psychology
  • Geriatrics and Gerontology
  • Psychiatry and Mental health

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