Evidence map›Paper›PMID 40320887›Full record

ArticleBrain : a journal of neurology2025

Altered T-cell reactivity in the early stages of Alzheimer's disease.

Chiara Rickenbach, Anna Mallone, Lars Häusle, Larissa Frei, Sarina Seiter, Colin Sparano, Tunahan Kirabali, Kaj Blennow, Henrik Zetterberg, Maria Teresa Ferretti and 6 more

Abstract read
In one paragraph

Article in Brain : a journal of neurology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

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.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

19 citing papers in PubMed.

  1. Trial
  2. Review
  3. Article
  4. Review
  5. Review
  6. Article
  7. Review
  8. Challenge-based ex vivo immune profiling reveals stimulus-dependent peripheral immune reprogramming in Alzheimer's disease.The journals of gerontology. Series A, Biological sciences and medical sciences · 2026
    Article
  9. Review
  10. Review
  11. Review
  12. The spleen-brain axis in Alzheimer's disease and related dementias: Integrating immune and metabolic regulation.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2026
    Review
  13. Article
  14. Article
  15. Review
  16. Review
  17. Review
  18. Brain communications · 2025
    Review
  19. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

16 authors.

Chiara RickenbachInstitute for Regenerative Medicine-IREM, University of Zurich, 8952 Schlieren, Switzerland.
Anna MalloneInstitute of Microbiology, ETH Zurich, 8049 Zurich, Switzerland.
Lars HäusleInstitute for Regenerative Medicine-IREM, University of Zurich, 8952 Schlieren, Switzerland.
Larissa FreiInstitute for Regenerative Medicine-IREM, University of Zurich, 8952 Schlieren, Switzerland.
Sarina SeiterInstitute for Regenerative Medicine-IREM, University of Zurich, 8952 Schlieren, Switzerland.
Colin SparanoInstitute of Experimental Immunology, University of Zurich, 8057 Zurich, Switzerland.
Tunahan KirabaliInstitute for Regenerative Medicine-IREM, University of Zurich, 8952 Schlieren, Switzerland.
Kaj BlennowDepartment of Psychiatry and Neurochemistry, Institute of Neuroscience and Physiology, Sahlgrenska Academy, University of Gothenburg, S-43180 Mölndal, Sweden.
Henrik ZetterbergDepartment of Psychiatry and Neurochemistry, Institute of Neuroscience and Physiology, Sahlgrenska Academy, University of Gothenburg, S-43180 Mölndal, Sweden.ORCID 0000-0003-3930-4354
Maria Teresa FerrettiCenter for Alzheimer Research, Karolinska Institute, S-17177 Stockholm, Sweden.
Luka KulicRoche Pharma Research and Early Development, Roche, 4070 Basel, Switzerland.
Christoph HockInstitute for Regenerative Medicine-IREM, University of Zurich, 8952 Schlieren, Switzerland.
Roger M NitschInstitute for Regenerative Medicine-IREM, University of Zurich, 8952 Schlieren, Switzerland.
Valerie TreyerInstitute for Regenerative Medicine-IREM, University of Zurich, 8952 Schlieren, Switzerland.
Anton GietlInstitute for Regenerative Medicine-IREM, University of Zurich, 8952 Schlieren, Switzerland.
Christoph GerickeInstitute for Regenerative Medicine-IREM, University of Zurich, 8952 Schlieren, Switzerland.ORCID 0000-0002-1196-7466

Funding

ALF-agreement #ALFGBG-715986ALF-agreement #ALFGBG-965240Alzheimer's Association 2021 Zenith ZEN-21-848495Alzheimer's Association 2022-2025 SG-23-1038904County CouncilsEuropean Union Joint Program for Neurodegenerative Disorders JPND2019-466-236European Union's Horizon Europe research and innovation programme 101053962Familjen Rönströms StiftelseHjärnfonden #ALZ2022-0006Hjärnfonden #FO2017-0243Kirsten and Freddy Johansen FoundationLa Fondation Recherche AlzheimerMäxi FoundationSwedish Alzheimer Foundation #AF-930351Swedish Alzheimer Foundation #AF-939721Swedish Alzheimer Foundation #AF-968270Swedish Alzheimer Foundation #AF-994551Swedish governmentSwedish Research Council #2017-00915Swedish Research Council #2019-02397Swedish Research Council #2022-00732Swedish Research Council #2022-01018Swedish Research Council #2023-00356Swedish State Support for Clinical Research #ALFGBG-71320Swiss National Science Foundation SNF 320030-125387/1Swiss National Science Foundation SNF 33CM30-124111Synapsis Foundation-Dementia Research Switzerland 2019-PI06University of Zurich
6 · The paper itself

Abstract

The adaptive immune system and neurodegenerative Alzheimer's disease (AD) are intertwined in multiple ways. Recent studies have reported alterations of the adaptive immune system in early AD stages, such as preclinical AD and mild cognitive impairment (MCI) due to AD. However, the identity of specific antigenic targets and whether the respective response is beneficial or detrimental during disease progression are still open questions. Herein, we describe cross-sectional analyses of blood and CSF from three different study populations covering early AD stages. We employed high-dimensional mass cytometry, single-cell RNA-sequencing, ex vivo T-cell secretome analysis, and antigen presentation assays to achieve a comprehensive characterization of adaptive immune cell populations. Our results show that subjects at the stage of asymptomatic, preclinical AD can mount a CD4+ T helper cell response towards amyloid-β peptide and display an early enrichment of CD8+ T effector memory cells re-expressing CD45RA (TEMRA cells) in CSF, combined with a less immunosuppressive gene signature of peripheral regulatory T cells. Conversely, in MCI we observed increased frequencies of CD8+ TEMRA/effector cells in the periphery characterized by a pro-inflammatory gene expression profile, and generally decreased antigen responsiveness. Our results demonstrate the complexity of adaptive immune changes in early AD and suggest that it may be beneficial to promote specific CD4+ T-cell responses in the preclinical stage, while in MCI it may be important to therapeutically target CD8+ T-cell responses if these prove to be harmful.

Indexed as

Alzheimer DiseaseT-LymphocytesAgedAged, 80 and overAmyloid beta-PeptidesCD4-Positive T-LymphocytesCD8-Positive T-LymphocytesCognitive DysfunctionCross-Sectional StudiesFemaleHumansMaleMiddle AgedAmyloid beta-PeptidesAD biomarkersAlzheimer’s disease (AD)antigen specificityCyTOFscRNA-seqT cells

Identifiers

PMID40320887
PMCPMC12404719

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.