Clustering of Alzheimer's and Parkinson's disease based on genetic burden of shared molecular mechanisms - Sorbonne Université
Article Dans Une Revue Scientific Reports Année : 2020

Clustering of Alzheimer's and Parkinson's disease based on genetic burden of shared molecular mechanisms

Résumé

One of the visions of precision medicine has been to re-define disease taxonomies based on molecular characteristics rather than on phenotypic evidence. However, achieving this goal is highly challenging, specifically in neurology. Our contribution is a machine-learning based joint molecular subtyping of Alzheimer's (AD) and Parkinson's Disease (PD), based on the genetic burden of 15 molecular mechanisms comprising 27 proteins (e.g. APOE) that have been described in both diseases. We demonstrate that our joint AD/PD clustering using a combination of sparse autoencoders and sparse non-negative matrix factorization is reproducible and can be associated with significant differences of AD and PD patient subgroups on a clinical, pathophysiological and molecular level. Hence, clusters are disease-associated. To our knowledge this work is the first demonstration of a mechanism based stratification in the field of neurodegenerative diseases. Overall, we thus see this work as an important step towards a molecular mechanism-based taxonomy of neurological disorders, which could help in developing better targeted therapies in the future by going beyond classical phenotype based disease definitions.
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Dates et versions

hal-03023189 , version 1 (25-11-2020)

Identifiants

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Mohammad Asif Emon, Ashley Heinson, Ping Wu, Daniel Domingo-Fernández, Meemansa Sood, et al.. Clustering of Alzheimer's and Parkinson's disease based on genetic burden of shared molecular mechanisms. Scientific Reports, 2020, 10 (1), pp.19097. ⟨10.1038/s41598-020-76200-4⟩. ⟨hal-03023189⟩
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