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Updated: Jun 14, 2026

Rapid Generation of Amyloid from Native Proteins In vitro
Published on: December 5, 2013
The amyloid cascade hypothesis: an updated critical review
Kasper P Kepp1, Nikolaos K Robakis2, Poul F Høilund-Carlsen3,4
1Section of Biophysical and Biomedicinal chemistry, DTU Chemistry, Technical University of Denmark, 2800 Kongens Lyngby, Denmark.
Recent Alzheimer's disease antibody trials targeting amyloid-beta (Aβ) show uncertain clinical effects, questioning the amyloid cascade hypothesis. New evidence suggests Aβ plays a minor role, supporting multifactorial disease models for effective Alzheimer's treatments.
Area of Science:
- Neurology
- Immunology
- Biochemistry
Background:
- The amyloid cascade hypothesis has long dominated Alzheimer's disease (AD) research, positing amyloid-beta (Aβ) as the primary driver.
- Recent clinical trials of anti-amyloid antibodies have yielded exciting but ultimately uncertain results regarding cognitive benefits.
Approach:
- This review critically examines the historical amyloid cascade hypothesis in light of new clinical trial data.
- We analyze genetic, clinical, imaging, and biochemical evidence to assess the role of Aβ in AD pathogenesis.
Key Points:
- Clinical trials of anti-amyloid antibodies demonstrate limited or inconclusive effects on cognition in Alzheimer's disease patients.
- While Aβ is crucial for AD definition, current data suggest it plays a minor etiological role.
- Evidence points towards a complex interplay of multiple pathogenic factors in AD development.
Conclusions:
- The amyloid cascade hypothesis may be an oversimplification of Alzheimer's disease etiology.
- Future research should focus on multifactorial disease models to develop more effective AD treatment strategies.
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