ArticleAlzheimer's research & therapy2023
Diagnostic and prognostic value of cerebrospinal fluid SNAP-25 and neurogranin in Creutzfeldt-Jakob disease in a clinical setting cohort of rapidly progressive dementias.
Article in Alzheimer's research & therapy, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.
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11 citing papers in PubMed, 16 citations in OpenAlex.
- Alterations in cerebrospinal fluid levels of myelin- and oligodendrocyte-related proteins in sporadic Creutzfeldt-Jakob disease.Acta neuropathologica communications · 2026Article
- Peripheral Signatures of Multidimensional Pathology in Symptomatic and Asymptomatic Creutzfeldt-Jakob Disease.CNS neuroscience & therapeutics · 2026Article
- Fluid biomarkers for neurodegenerative diseases: a comprehensive update.Alzheimer's research & therapy · 2025Review
- Distinct cerebrospinal fluid proteomic signatures define clinicopathological subtypes of sporadic Creutzfeldt-Jakob disease and predict patient survival.Acta neuropathologica communications · 2025Article
- Synapse vulnerability and resilience across the clinical spectrum of dementias.Nature reviews. Neurology · 2025Review
- Plasma vesicle-associated membrane protein 2 and glial fibrillary acidic protein associate with synaptic density in older adults without dementia.Brain communications · 2025Article
- Biological Fluid Biomarkers in Human Prion Diseases with a Note on Biosafety.Sub-cellular biochemistry · 2025Review
- A Systematic Review of Sporadic Creutzfeldt-Jakob Disease: Pathogenesis, Diagnosis, and Therapeutic Attempts.Neurology international · 2024Review
- Clinical, neuropathological, and molecular characteristics of rapidly progressive dementia with Lewy bodies: a distinct clinicopathological entity?Alzheimer's research & therapy · 2024Article
- Tau, Glial Fibrillary Acidic Protein, and Neurofilament Light Chain as Brain Protein Biomarkers in Cerebrospinal Fluid and Blood for Diagnosis of Neurobiological Diseases.International journal of molecular sciences · 2024Review
- Diagnostic and Prognostic Value of Plasma GFAP in Sporadic Creutzfeldt-Jakob Disease in the Clinical Setting of Rapidly Progressive Dementia.International journal of molecular sciences · 2024Article
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8 authors at 2 institutions in 1 country.
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Abstract
backgroundThe levels of synaptic markers synaptosomal-associated protein 25 (SNAP-25) and neurogranin (Ng) have been shown to increase early in the cerebrospinal fluid (CSF) of patients with Creutzfeldt-Jakob disease (CJD) and to have prognostic potential. However, no validation studies assessed these biomarkers' diagnostic and prognostic value in a large clinical setting cohort of rapidly progressive dementia.
methodsIn this retrospective study, using commercially available immunoassays, we measured the levels of SNAP-25, Ng, 14-3-3, total-tau (t-tau), neurofilament light chain (NfL), and phospho-tau181 (p-tau) in CSF samples from consecutive patients with CJD (n = 220) or non-prion rapidly progressive dementia (np-RPD) (n = 213). We evaluated and compared the diagnostic accuracy of each CSF biomarker and biomarker combination by receiver operating characteristics curve (ROC) analyses, studied SNAP-25 and Ng CSF concentrations distribution across CJD subtypes, and estimated their association with survival using multivariable Cox regression analyses.
resultsCSF SNAP-25 and Ng levels were higher in CJD than in np-RPD (SNAP-25: 582, 95% CI 240-1250 vs. 115, 95% CI 78-157 pg/ml, p < 0.0001; Ng: 841, 95% CI 411-1473 vs. 390, 95% CI 260-766 pg/ml, p < 0.001). SNAP-25 diagnostic accuracy (AUC 0.902, 95% CI 0.873-0.931) exceeded that of 14-3-3 (AUC 0.853, 95% CI 0.816-0.889), t-tau (AUC 0.878, 95% CI 0.845-0.901), and the t-tau/p-tau ratio (AUC 0.884, 95% CI 0.851-0.916). In contrast, Ng performed worse (AUC 0.697, 95% CI 0.626-0.767) than all other surrogate biomarkers, except for NfL (AUC 0.649, 95% CI 0.593-0.705). SNAP-25 maintained a relatively high diagnostic value even for atypical CJD subtypes (AUC 0.792, 95% CI 0.729-0.854). In Cox regression analyses, SNAP-25 levels were significantly associated with survival in CJD (hazard ratio [HR] 1.71 95% CI 1.40-2.09). Conversely, Ng was associated with survival only in the most rapidly progressive CJD subtypes (sCJD MM(V)1 and gCJD M1) (HR 1.81 95% CI 1.21-2.93).
conclusionsIn the clinical setting, CSF SNAP-25 is a viable alternative to t-tau, 14-3-3, and the t-tau/p-tau ratio in discriminating the CJD subtypes from other RPDs. Additionally, SNAP-25 and, to a lesser extent, Ng predict survival in CJD, showing prognostic power in the range of CSF t-tau/14-3-3 and NfL, respectively.
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