Article ; Online: Genetic-based patient stratification in Alzheimer's disease.
2024 Volume 14, Issue 1, Page(s) 9970
Abstract: Alzheimer's disease (AD) shows a high pathological and symptomatological heterogeneity. To study this heterogeneity, we have developed a patient stratification technique based on one of the most significant risk factors for the development of AD: ... ...
Abstract | Alzheimer's disease (AD) shows a high pathological and symptomatological heterogeneity. To study this heterogeneity, we have developed a patient stratification technique based on one of the most significant risk factors for the development of AD: genetics. We addressed this challenge by including network biology concepts, mapping genetic variants data into a brain-specific protein-protein interaction (PPI) network, and obtaining individualized PPI scores that we then used as input for a clustering technique. We then phenotyped each obtained cluster regarding genetics, sociodemographics, biomarkers, fluorodeoxyglucose-positron emission tomography (FDG-PET) imaging, and neurocognitive assessments. We found three clusters defined mainly by genetic variants found in MAPT, APP, and APOE, considering known variants associated with AD and other neurodegenerative disease genetic architectures. Profiling of these clusters revealed minimal variation in AD symptoms and pathology, suggesting different biological mechanisms may activate the neurodegeneration and pathobiological patterns behind AD and result in similar clinical and pathological presentations, even a shared disease diagnosis. Lastly, our research highlighted MAPT, APP, and APOE as key genes where these genetic distinctions manifest, suggesting them as potential targets for personalized drug development strategies to address each AD subgroup individually. |
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MeSH term(s) | Alzheimer Disease/genetics ; Alzheimer Disease/diagnostic imaging ; Humans ; tau Proteins/genetics ; Apolipoproteins E/genetics ; Positron-Emission Tomography ; Male ; Female ; Aged ; Genetic Predisposition to Disease ; Amyloid beta-Protein Precursor/genetics ; Protein Interaction Maps/genetics ; Biomarkers ; Brain/diagnostic imaging ; Brain/pathology ; Brain/metabolism |
Chemical Substances | tau Proteins ; Apolipoproteins E ; MAPT protein, human ; Amyloid beta-Protein Precursor ; Biomarkers ; ApoE protein, human ; APP protein, human |
Language | English |
Publishing date | 2024-04-30 |
Publishing country | England |
Document type | Journal Article ; Research Support, Non-U.S. Gov't ; Research Support, N.I.H., Extramural |
ZDB-ID | 2615211-3 |
ISSN | 2045-2322 ; 2045-2322 |
ISSN (online) | 2045-2322 |
ISSN | 2045-2322 |
DOI | 10.1038/s41598-024-60707-1 |
Database | MEDical Literature Analysis and Retrieval System OnLINE |
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