Evidence map›Paper›PMID 41617706›Full record

ArticleNature communications2026

Clonal expansion of cytotoxic CD8⁺ T cells in lecanemab-associated ARIA.

Lance A Johnson, Kai Saito, Akhil V Pallerla, Jessica L Funnell, Ashley R Ezzo, Chelsea M Song, Douglas A Harrison, Noah J Norton, Lauren C Moore, Linda J Van Eldik and 3 more

Abstract read
In one paragraph

Article in Nature communications, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing 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

4 citing papers in PubMed.

  1. Trial
  2. Lecanemab treatment improves B cell subpopulation immune homeostasis in patients with Alzheimer's disease.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2026
    Article
  3. Article
  4. Review
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

13 authors.

Lance A JohnsonSanders-Brown Center on Aging, University of Kentucky College of Medicine, Lexington, KY, USA.ORCID 0000-0003-0134-7586
Kai SaitoSanders-Brown Center on Aging, University of Kentucky College of Medicine, Lexington, KY, USA.
Akhil V PallerlaDepartment of Physiology, University of Kentucky College of Medicine, Lexington, KY, USA.
Jessica L FunnellDepartment of Physiology, University of Kentucky College of Medicine, Lexington, KY, USA.
Ashley R EzzoNorton Research Institute, Norton Healthcare, Louisville, KY, USA.
Chelsea M SongNorton Research Institute, Norton Healthcare, Louisville, KY, USA.
Douglas A HarrisonDepartment of Biology, University of Kentucky College of Arts & Sciences, Lexington, KY, USA.
Noah J NortonSanders-Brown Center on Aging, University of Kentucky College of Medicine, Lexington, KY, USA.
Lauren C MooreSanders-Brown Center on Aging, University of Kentucky College of Medicine, Lexington, KY, USA.
Linda J Van EldikSanders-Brown Center on Aging, University of Kentucky College of Medicine, Lexington, KY, USA.ORCID 0000-0002-8139-6400
David W FardoSanders-Brown Center on Aging, University of Kentucky College of Medicine, Lexington, KY, USA.ORCID 0000-0002-7207-4696
Greg E CooperNorton Neuroscience Institute, Norton Healthcare, Louisville, KY, USA.ORCID 0009-0008-3401-911X
Josh M MorgantiSanders-Brown Center on Aging, University of Kentucky College of Medicine, Lexington, KY, USA. josh.morganti@uky.edu.ORCID 0000-0002-4183-0049

Funding

University of Kentucky Alzheimer's Disease Research CenterP30AG072946 · NIA · UNIVERSITY OF KENTUCKY · PI Daniel Carl Lee · 2021 to 2026
$23.5M
Sustained eIF5A hypusination at the core of brain metabolic dysfunction in TDP-43 proteinopathiesP20GM148326 · NIGMS · UNIVERSITY OF KENTUCKY · PI Patrick G Sullivan · 2023 to 2026
$10.6M
NRSA Training CoreTL1TR001997 · NCATS · UNIVERSITY OF KENTUCKY · PI PENDERGAST, JULIE S, STOOPS, WILLIAM WALTON · 2016 to 2025
$4.2M
APOE Allele Switching as a Therapeutic Approach for Alzheimer's DiseaseR01AG080589 · NIA · UNIVERSITY OF KENTUCKY · PI Lance Allen Johnson · 2023 to 2026
$2.6M
Inflammatory contributions of astrocytic RelA in comorbid VCID/ADRF1NS118558 · NINDS · UNIVERSITY OF KENTUCKY · PI MORGANTI, JOSH · 2020 to 2021
$2.4M
Inflammatory contributions of astrocytic RelA in comorbid VCID/ADR01NS118558 · NINDS · UNIVERSITY OF KENTUCKY · PI MORGANTI, JOSH · 2024 to 2024
$501k
Alzheimer's Association ABA-25-1376140NIA NIH HHS P30 AG072946NINDS NIH HHS R01 NS118558U.S. Department of Health & Human Services | NIH | National Center for Advancing Translational Sciences (NCATS) TL1TR001997U.S. Department of Health & Human Services | NIH | National Institute of General Medical Sciences (NIGMS) P20GM148326U.S. Department of Health & Human Services | NIH | National Institute of Neurological Disorders and Stroke (NINDS) RF1NS118558U.S. Department of Health & Human Services | NIH | National Institute on Aging (U.S. National Institute on Aging) R01AG080589
6 · The paper itself

Abstract

Amyloid-related imaging abnormalities (ARIA) are the principal safety concern limiting anti-amyloid therapies for Alzheimer's disease, yet their biology remains unclear. Here we show, through multi-omic profiling of peripheral blood from three ARIA+ patients and matched controls, that ARIA is associated with coordinated reprogramming of CD8 + T cells. CD8+ effector memory (TEM) and terminally differentiated (TEMRA) subsets were expanded, clonally enriched, and transcriptionally primed for cytotoxicity and vascular trafficking. Transcription factor inference and metabolomics converged on glycolytic reprogramming favoring short-lived effector function. Ligand-receptor modeling revealed enhanced monocyte-to-T cell signaling through antigen presentation, adhesion, and chemokine axes, while integration with a cerebrovascular atlas confirmed that ARIA-associated TEMRAs are transcriptionally "addressed" for vascular engagement. Together, these findings identify a peripheral immune signature linking metabolic reprogramming, clonal CD8+ expansion, and altered intercellular communication to ARIA, with implications for biomarker development and risk mitigation pending validation in larger cohorts.

Indexed as

CD8-Positive T-LymphocytesCell Adhesion MoleculesT-Lymphocytes, CytotoxicFemaleGlycolysisHumansMetabolic ReprogrammingMultiomicsCell Adhesion Molecules

Identifiers

PMID41617706
PMCPMC12960807

What OpenQuestion holds

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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.