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Data-driven CSF biomarker profiling: imaging and clinical outcomes in a cohort at risk of Alzheimer’s disease
Open accessAbstract
Cerebrospinal fluid (CSF) biomarkers of synaptic dysfunction, neuroinflammation, and glial response, complementing Alzheimer’s disease (AD) core biomarkers, have improved the pathophysiological characterization of the disease. Here, we tested the hypothesis that the co-expression of multiple CSF biomarkers will help the identification of AD-like phenotypes when biomarker positivity thresholds are not met yet. Two hundred and seventy cognitively unimpaired adults with family history (FH) of sporadic AD (mean age = 60.6 ± 4.85 years, 64.8% women) underwent lumbar puncture, magnetic resonance imaging ( n = 266) and positron emission tomography imaging ( n = 239) protocols, and clinical evaluations. CSF Aβ 42 , Aβ 40 , p-tau 181 , p-tau 217, p-tau 231, NfL, neurogranin, sTREM2, YKL40, GFAP, S100, α-Synuclein, SYT1, and SNAP25 were measured. Participants were clustered based on CSF biomarker co-expression with an agglomerative algorithm. The predictive value of the classification against brain and cognitive outcomes was evaluated. Three clusters (C) were identified. Higher Aβ burden and CSF p-tau was the hallmark of C1. The other two clusters showed lower Aβ burden but higher expression of glial (C2) or synaptic markers (C3). Participants in C1 showed an AD-like clinical phenotype, comprising participants with the overall highest percentage of two parent FH and APOE -ε4 carriers, in addition to comprising more females compared to C2. C3 displayed better vascular health compared to C1. C2 were older and comprised a lower percentage of females compared to C3. C1 showed an AD-like gray matter reduction in medial temporal (notably hippocampus) and frontal regions that were not observed in Aβ 42/40 + compared with Aβ 42/40 − . Furthermore, Aβ 42/40 − participants in C1 showed GM reduction in inferior temporal areas compared with Aβ 42/40 + participants overall. C1 membership also predicted cognitive decline in executive function, but not memory, beyond Aβ + status, overall suggesting a better prognosis in Aβ 42/40 + participants without C1 membership. Additionally, C1 displayed a higher rate of conversion to Aβ + (25%) over time. Our results suggest that examining multiple CSF biomarkers reflecting diverse pathological pathways may complement and/or outperform AD core biomarkers and thresholding approaches to identify individuals showing a clinical and cognitive AD-like phenotype, including higher conversion to Aβ + , GM reductions and cognitive decline. The clinical utility of this approach warrants further investigation and replication in other cohorts.
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Advanced AI techniques such as machine learning classifiers and dimensionality reduction algorithms have been applied to integrate multi-analyte CSF profiles with clinical metadata to enhance diagnostic accuracy.
“To enhance diagnostic accuracy, advanced AI techniques, such as machine learning classifiers and dimensionality reduction algorithms, have been applied to integrate multi-analyte CSF profiles with clinical metadata76, 77, 78, 79.”
From Artificial intelligence-driven multi-omics approaches in Alzheimer's disease: Progress, challenges, and future directions (2025) · cites this paper as [78]
The Methods (Statistical analysis; page unavailable) describe unsupervised hierarchical clustering of multiple CSF biomarkers, followed by comparisons of clinical variables between clusters. The Conclusions (page unavailable) say this approach may help identify AD-like phenotypes, but the paper does not report using machine-learning classifiers or dimensionality-reduction algorithms, incorporating clinical metadata into the clustering, or demonstrating improved diagnostic accuracy. (LLM, conf=0.87)
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“…light (NfL), neurogra-nin, the soluble fragments of the triggering receptor expressed on myeloid cells 2 (sTREM2), Chitinase 3-like 1 (YKL40), glial fibrillary acidic protein (GFAP), S100 calcium-binding protein B (S100b), and α-synuclein ( ⍺ -SYN) were measured using the NTK [12, 15].”
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Ren, F., Wei, J., Chen, Q., Hu, M., Yu, L., Mi, J., Zhou, X., Qin, D., Wu, J., & Wu, A. (2025) · Acta Pharmaceutica Sinica B · doi:10.1016/j.apsb.2025.07.030 · Cited by 97
Metadata
- Authors
- Argiris, G., Akinci, M., Peña-Gómez, C., Palpatzis, E., Garcia-Prat, M., Shekari, M., Blennow, K., Zetterberg, H., Kollmorgen, G., Quijano-Rubio, C., Ashton, N. J., Karikari, T. K., Brinkmalm-Westman, A., Lantero-Rodriguez, J., Fauria, K., Sánchez-Benavides, G., Grau-Rivera, O., Suárez-Calvet, M., Arenaza-Urquijo, E. M., & study, F. T. A.
- Affiliations
- Columbia University (US)
- Pasqual Maragall Foundation (ES)
- Universitat Pompeu Fabra (ES)
- Sahlgrenska University Hospital (SE)
- University of Wisconsin–Madison (US)
- King's College London (GB)
- University of Pittsburgh (US)
- Corresponding author
- Fauria, Karine
- ORCID
- Venue
- Alzheimer's Research & Therapy
- Published
- 2024-12-23
- Volume
- 16
- Issue
- 1
- Pages
- 274-274
- ISSN
- 1758-9193 (ISSN-L)
- PMC
- PMC11667858
- OpenAlex
- W4405700756
- Cited by
- 6
- References
- 5
- Citations by year
- 2025: 6
- FWCI
- 1.76
- Type
- journal article
- Language
- en
- Open access
- gold
- doi.org
- Licence
- Locations
- Alzheimer s Research & Therapy (publishedVersion, cc-by-nc-nd)
- PubMed Central (publishedVersion, cc-by-nc-nd)
- PubMed (publishedVersion)
- Repositori digital de la UPF (Universitat Pompeu Fabra) (publishedVersion, cc-by-nc-nd)
- PUBLISSO (German National Library of Medicine) (submittedVersion, cc-by-nc-nd)
- DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
- Columbia Academic Commons (Columbia University)
- Funders
- Alzheimer's Association (AARG2019-AARG-644641, 100010434, AARG 2019-AARG-644641-RAPID, 23AARF-1028873, TriBEKa-17-519007, 2019-AARG-644641)
- Alzheimer's Drug Discovery Foundation (2016862, UKDRI-1003, 860197, JPND2021-00694)
- Familjen Erling-Perssons Stiftelse (860197)
- Stiftelsen för Gamla Tjänarinnor (FO2022‐0270, 860197)
- EU Joint Programme – Neurodegenerative Disease Research (JPND 2021-00694)
- National Institute for Health and Care Research
- University College London (UKDRI‐1003)
- European Commission (100010434, 847648, 948677, 101,053,962, JPND2021‐00694, HORIZON2020, ALFGBG-71320, 860197, ID 100010434)
- Hjärnfonden (#FO2022-0270)
- Vetenskapsrådet (#101053962, 2022-01018, ALFGBG‐71320, 2019-02397)
- Ministerio de Ciencia e Innovación (ID100010434, 847648, 100010434)
- UK Dementia Research Institute (UKDRI‐ 1003)
- Fundación Bancaria Caixa d'Estalvis i Pensions de Barcelona (ID 100010434, 100010434)
- HORIZON EUROPE Framework Programme (847648, 101053962, 860197)
- Instituto de Salud Carlos III (PI19/00155)
- National Institute on Aging (P30AG072980, R01AG083874)
- European Social Fund
- Topics
- Health Sciences › Medicine › Psychiatry and Mental health › Dementia and Cognitive Impairment Research
- Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Alzheimer's disease research and treatments
- Life Sciences › Neuroscience › Neurology › Neuroinflammation and Neurodegeneration Mechanisms
- Keywords
- Alzheimer's disease, cerebrospinal fluid biomarkers, amyloid-beta, phosphorylated tau, neuroinflammation, glial activation, synaptic dysfunction, family history of Alzheimer's disease, APOE ε4, neurogranin, YKL-40, sTREM2, glial fibrillary acidic protein, S-100 protein, alpha-synuclein, synaptotagmin-1, SNAP-25, neurofibrillary tangles, gray matter reduction, hippocampus, inferior temporal cortex, executive function decline, cognitive decline prediction, neurodegeneration
- MeSH terms
- Aged, Alzheimer Disease, Female, Humans, Magnetic Resonance Imaging, Male, Middle Aged, Peptide Fragments, Cohort Studies, Biomarkers, Amyloid beta-Peptides, tau Proteins, Positron-Emission Tomography
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