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@INPROCEEDINGS{Kinton:283155,
author = {Kinton, Sofia and Dujardin, Simon and Levit, Mikhail and
Pao, Ping-Chieh and Sardi, Pablo and Zhang, Bailin and
Dodge, James and Krishnan, Rajaraman and Rizzo, Marianna and
Teunissen, Charlotte E and Zetterberg, Henrik and Blennow,
Kaj and Kollmorgen, Gwendlyn and Ramia, Nancy and Fernandes,
Sara B Gomes and Krüger, Rejko and Borejko, Olga and
Aarsland, Dag and Hu, Michele and Klockgether, Thomas and
Brockmann, Kathrin and Gasser, Thomas and Jessen, Frank and
Spottke, Annika and van der Flier, Wiesje M and Lemstra,
Afina W and Tijms, Betty M and Frisoni, Giovanni B and Hort,
Jakub and Nedelska, Zuzana and Chevalier, Claire and Visser,
Pieter Jelle and Vos, Stephanie J B},
title = {{P}roteomic {P}rofiling of {CSF} {R}eveals {I}nflammatory
{P}athways {A}ssociated with {T}au {N}europathology in
{A}lzheimer's {D}isease},
journal = {Alzheimer's and dementia},
volume = {21},
number = {S2},
issn = {1552-5260},
reportid = {DZNE-2026-00051},
pages = {e106780},
year = {2025},
abstract = {Aggregation of amyloid beta (Aβ) and tau proteins is a
hallmark of Alzheimer's disease (AD) and tauopathies. In AD,
extracellular deposition of Aβ peptide precedes tau
aggregation and the onset of neuroinflammatory processes.
Both neuroinflammation and tau deposition are associated
with synaptic loss, neurodegeneration, and cognitive
decline. However, the precise sequence of events from
amyloid deposition to tau aggregation, neuroinflammation,
and neurodegeneration remains unclear. A cross-sectional
analysis of tau and other proteins in the cerebrospinal
fluid (CSF) of AD patients can provide insight into the
inflammatory and degenerative processes. Tau levels may be
used as a proxy for disease progression, and we hypothesize
that the expression of neuroinflammatory markers will be
modulated in response to increasing tau aggregation.To
investigate this, we collaborated with the EPND-biomarker
consortium to analyze over 150 human CSF samples from AD and
control patients. We measured levels of Aβ1-40, Aβ1-42,
pTau181, and total tau, and conducted proteomic profiling
using the O-link and SomaScan platforms. Next, AD patients
were stratified into Aβ+Tau+ and Aβ+Tau- groups to
identify biomarkers associated with Aβ and/or tau
aggregation.As expected, inflammation markers were elevated
in AD CSF samples compared to controls. Interestingly, we
observed distinct correlations between these markers and
amyloid versus tau pathology biomarkers. Approximately
$10\%$ of the measured CSF proteins (∼250 proteins) showed
significant differences (p < 0.05) between AD and control
samples. CSF samples with elevated tau levels exhibited
altered levels of proteins involved in the complement
cascade, cytokine-cytokine receptor interactions, cell
adhesion, and vesicular transport.Increased inflammation
markers were observed in AD. Proteins linked to innate
immune response and synaptic loss were significantly altered
in relation to tau aggregation. These findings are crucial
for guiding therapeutic strategies for neurodegenerative
diseases and assessing their efficacy.},
month = {Jul},
date = {2025-07-27},
organization = {Alzheimer’s Association
International Conference, Toronto
(Canada), 27 Jul 2025 - 31 Jul 2025},
keywords = {Humans / Biomarkers: cerebrospinal fluid / Alzheimer
Disease: cerebrospinal fluid / tau Proteins: cerebrospinal
fluid / Amyloid beta-Peptides: cerebrospinal fluid / Female
/ Male / Aged / Cross-Sectional Studies / Proteomics /
Middle Aged / Peptide Fragments: cerebrospinal fluid /
Biomarkers (NLM Chemicals) / tau Proteins (NLM Chemicals) /
Amyloid beta-Peptides (NLM Chemicals) / Peptide Fragments
(NLM Chemicals)},
cin = {Patient Studies (Bonn) / AG Gasser / AG Jessen},
ddc = {610},
cid = {I:(DE-2719)1011101 / I:(DE-2719)1210000 /
I:(DE-2719)1011102},
pnm = {353 - Clinical and Health Care Research (POF4-353)},
pid = {G:(DE-HGF)POF4-353},
typ = {PUB:(DE-HGF)1 / PUB:(DE-HGF)16},
pubmed = {pmid:41505027},
doi = {10.1002/alz70856_106780},
url = {https://pub.dzne.de/record/283155},
}