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Multifactorial Hypothesis and Multi-Targets for Alzheimer's Disease
Cheng-Xin Gong1, Fei Liu1, Khalid Iqbal1
1Department of Neurochemistry, Inge Grundke-Iqbal Research Floor, New York State Institute for Basic Research in Developmental Disabilities, Staten Island, NY, USA.
Journal of Alzheimer'S Disease : JAD
|March 23, 2018
Summary
Alzheimer's disease (AD) research needs new approaches beyond the amyloid cascade hypothesis. A multifactorial hypothesis suggests AD arises from multiple causes, requiring multi-target drug discovery and precision medicine for effective treatments.
Area of Science:
- Neuroscience
- Pharmacology
- Genetics
Background:
- The amyloid cascade hypothesis has guided Alzheimer's disease (AD) drug discovery for 20 years.
- Numerous clinical trials based on this hypothesis have failed to yield effective treatments.
- This necessitates a re-evaluation of AD's underlying causes and therapeutic strategies.
Purpose of the Study:
- To propose the multifactorial hypothesis of Alzheimer's disease (AD).
- To advocate for a paradigm shift in AD drug development from single-target to multi-target approaches.
- To highlight the potential of precision medicine and patient stratification in AD therapeutics.
Main Methods:
- Conceptual review and hypothesis formulation.
- Analysis of existing AD research and clinical trial outcomes.
- Integration of evidence supporting multiple etiological factors in AD.
Main Results:
- The amyloid cascade hypothesis may be insufficient to explain AD's complexity.
- AD likely results from multiple interacting etiological factors and molecular pathways.
- Individual AD cases may involve distinct combinations of factors and mechanisms.
Conclusions:
- A multifactorial hypothesis provides a more comprehensive framework for understanding AD.
- Future AD drug development should focus on multi-target strategies, such as multitarget-directed ligands or cocktail therapies.
- Patient stratification and precision medicine are crucial for advancing AD therapeutics.