ArticleDiagnostics (Basel, Switzerland)2024
Serum Tau Species in Progressive Supranuclear Palsy: A Pilot Study.
Article in Diagnostics (Basel, Switzerland), 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
What it found
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Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
3 citing papers in PubMed.
- Nuclear Speckle Protein SRRM2 Co-localized with Pathological Tau (pTauS396) in Neuronal and Glial Cells in Progressive Supranuclear Palsy.Acta histochemica et cytochemica · 2026Article
- A narrative review of serum biomarkers in progressive supranuclear palsy, corticobasal syndrome, and related disorders.Journal of neural transmission (Vienna, Austria : 1996) · 2026Review
- Differentiating Progressive Supranuclear Palsy and Corticobasal Syndrome: Insights from Cerebrospinal Fluid Biomarkers-A Narrative Review.Medicina (Kaunas, Lithuania) · 2025Review
Corrections and comments
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Authors and funding
6 authors.
Funding
Abstract
BACKGROUND/
objectivesProgressive Supranuclear Palsy (PSP) is a tauopathy showing a marked symptoms overlap with Parkinson's Disease (PD). PSP pathology suggests that tau protein might represent a valuable biomarker to distinguish between the two diseases. Here, we investigated the presence and diagnostic value of six different tau species (total tau, 4R-tau isoform, tau aggregates, p-tau202, p-tau231 and p-tau396) in serum from 13 PSP and 13 PD patients and 12 healthy controls (HCs).
methodsELISA commercial kits were employed to assess all the tau species except for t-tau, which was assessed by a single molecule array (SIMOA)-based commercial kit. Possible correlations between tau species and biological and clinical features of our cohorts were also evaluated.
resultsAmong the six tau species tested, only p-tau396 was detectable in serum. Concentration of p-tau396 was significantly higher in both PSP and PD groups compared to HC, but PSP and PD patients showed largely overlapping values. Moreover, serum concentration of p-tau396 strongly correlated with disease severity in PSP and not in PD.
conclusionsOverall, we identified serum p-tau396 as the most expressed phosphorylated tau species in serum and as a potential tool for assessing PSP clinical staging. Moreover, we demonstrated that other p-tau species may be present at too low concentrations in serum to be detected by ELISA, suggesting that future work should focus on other biological matrices.
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