Amyloidogenesis in Alzheimer's disease: some possible therapeutic opportunities
1Laboratory of Molecular and Cellular Neuroscience, Rockefeller University, New York, New York 10021.
Abstract:
Cerebral deposition of fibrils formed from the beta/A4 amyloid protein is an invariable feature of Alzheimer's disease. Evidence suggests that generation of such fibrils may be involved in the etiology of this disease, since mutations in the coding region of the beta/A4 amyloid precursor protein (APP) gene segregate with familial cerebral amyloidoses, including familial Alzheimer's disease. Transgenic models of cerebral amyloidosis have been produced, and some progress has been made in elucidating the cell biology of amyloidogenesis. For example, agents that alter protein phosphorylation are potent modulators of the expression and proteolytic processing of APP. Sam Gandy and Paul Greengard review these recent studies, and discuss those that may provide rational therapeutic opportunities.
Insights
Alzheimer's disease is linked to beta/A4 amyloid protein fibrils in the brain. Research explores amyloid precursor protein (APP) gene mutations and therapeutic targets for this neurodegenerative condition.
Area of Science:
- Neuroscience
- Genetics
- Biochemistry
Background:
- Alzheimer's disease is characterized by cerebral amyloid plaques.
- Beta/A4 amyloid protein fibril deposition is a hallmark of Alzheimer's disease.
- Mutations in the amyloid precursor protein (APP) gene are linked to familial forms of the disease.
Purpose of the Study:
- To review recent studies on cerebral amyloidosis.
- To elucidate the cell biology of amyloidogenesis.
- To discuss potential therapeutic strategies for Alzheimer's disease.
Main Methods:
- Review of existing literature on Alzheimer's disease and amyloidogenesis.
- Analysis of genetic studies involving APP gene mutations.
- Examination of cellular mechanisms, including protein phosphorylation, affecting APP processing.
Main Results:
- Cerebral amyloid deposition is a consistent feature of Alzheimer's disease.
- APP gene mutations are associated with familial cerebral amyloidoses.
- Protein phosphorylation significantly influences APP expression and processing.
Conclusions:
- Understanding amyloidogenesis is crucial for Alzheimer's disease research.
- Targeting APP processing pathways may offer therapeutic avenues.
- Further research into cell biology and genetics can guide treatment development.
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