期刊
NATURE NEUROSCIENCE
卷 23, 期 3, 页码 311-322出版社
NATURE PORTFOLIO
DOI: 10.1038/s41593-020-0599-5
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资金
- UK Dementia Research Institute at Cardiff [MC_PC_17112]
- Medical Research Council [MR/K013041/1]
- Alzheimer's Society
- Alzheimer's Research UK [ARUK-NC2018-WAL]
- Dementia Platform UK [HQR00720]
- European Joint Programme for Neurodegenerative Disease [MR/N029402/1]
- Welsh Assembly Government, Centre for Ageing & Dementia Research [SGR544:CADR]
- MRC [MR/M009076/1, G0902227, MR/L023784/2, MR/L023784/1, G0600237, MR/K013041/1, G0300429, MC_PC_17112] Funding Source: UKRI
Genes play a strong role in Alzheimer's disease (AD), with late-onset AD showing heritability of 58-79% and early-onset AD showing over 90%. Genetic association provides a robust platform to build our understanding of the etiology of this complex disease. Over 50 loci are now implicated for AD, suggesting that AD is a disease of multiple components, as supported by pathway analyses (immunity, endocytosis, cholesterol transport, ubiquitination, amyloid-beta and tau processing). Over 50% of late-onset AD heritability has been captured, allowing researchers to calculate the accumulation of AD genetic risk through polygenic risk scores. A polygenic risk score predicts disease with up to 90% accuracy and is an exciting tool in our research armory that could allow selection of those with high polygenic risk scores for clinical trials and precision medicine. It could also allow cellular modelling of the combined risk. Here we propose the multiplex model as a new perspective from which to understand AD. The multiplex model reflects the combination of some, or all, of these model components (genetic and environmental), in a tissue-specific manner, to trigger or sustain a disease cascade, which ultimately results in the cell and synaptic loss observed in AD.
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