Evidence map›Paper›PMID 40120575›Full record

ArticleCell2025

Meningeal lymphatics-microglia axis regulates synaptic physiology.

Kyungdeok Kim, Daviti Abramishvili, Siling Du, Zachary Papadopoulos, Jay Cao, Jasmin Herz, Igor Smirnov, Jean-Leon Thomas, Marco Colonna, Jonathan Kipnis

Abstract read
In one paragraph

Article in Cell, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 43 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
43citing papers in PubMed, 2 pooled it
–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

43 citing papers in PubMed, 2 syntheses or guidelines pooled it.

  1. Pooled it
  2. Pooled it
  3. Article
  4. Article
  5. Priming of CD8Nature neuroscience · 2026
    Article
  6. Review
  7. Immune-mediated excitotoxicity in brain disorders.Nature reviews. Immunology · 2026
    Review
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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

10 authors.

Kyungdeok KimBrain Immunology and Glia (BIG) Center, Washington University in St Louis, St Louis, MO, USA; Department of Pathology and Immunology, School of Medicine, Washington University in St Louis, St Louis, MO, USA. Electronic address: kyungdeok@wustl.edu.
Daviti AbramishviliBrain Immunology and Glia (BIG) Center, Washington University in St Louis, St Louis, MO, USA; Department of Pathology and Immunology, School of Medicine, Washington University in St Louis, St Louis, MO, USA.
Siling DuBrain Immunology and Glia (BIG) Center, Washington University in St Louis, St Louis, MO, USA; Department of Pathology and Immunology, School of Medicine, Washington University in St Louis, St Louis, MO, USA.
Zachary PapadopoulosBrain Immunology and Glia (BIG) Center, Washington University in St Louis, St Louis, MO, USA; Department of Pathology and Immunology, School of Medicine, Washington University in St Louis, St Louis, MO, USA; Neuroscience Graduate Program, School of Medicine, Washington University in St Louis, St Louis, MO, USA.
Jay CaoBrain Immunology and Glia (BIG) Center, Washington University in St Louis, St Louis, MO, USA; Department of Pathology and Immunology, School of Medicine, Washington University in St Louis, St Louis, MO, USA.
Jasmin HerzBrain Immunology and Glia (BIG) Center, Washington University in St Louis, St Louis, MO, USA; Department of Pathology and Immunology, School of Medicine, Washington University in St Louis, St Louis, MO, USA.
Igor SmirnovBrain Immunology and Glia (BIG) Center, Washington University in St Louis, St Louis, MO, USA; Department of Pathology and Immunology, School of Medicine, Washington University in St Louis, St Louis, MO, USA.
Jean-Leon ThomasDepartment of Neurology, Yale University School of Medicine, New Haven, CT, USA; Paris Brain Institute, Université Pierre et Marie Curie Paris 06, UMRS1127, Sorbonne Université, Paris, France.
Marco ColonnaDepartment of Pathology and Immunology, School of Medicine, Washington University in St Louis, St Louis, MO, USA.
Jonathan KipnisBrain Immunology and Glia (BIG) Center, Washington University in St Louis, St Louis, MO, USA; Department of Pathology and Immunology, School of Medicine, Washington University in St Louis, St Louis, MO, USA. Electronic address: kipnis@wustl.edu.

Funding

Washington University Center for Cellular ImagingP30CA091842 · NCI · WASHINGTON UNIVERSITY · PI TIMOTHY J. EBERLEIN · 2001 to 2026
$128.0M
Washington University Institute of Clinical and Translational SciencesUL1TR000448 · NCATS · WASHINGTON UNIVERSITY · PI EVANOFF, BRADLEY A · 2012 to 2016
$41.4M
The protein tyrosine kinase SYK drives innate immune responses against Alzheimer's DiseaseP01AG078106 · NIA · WASHINGTON UNIVERSITY · PI MARCO COLONNA · 2022 to 2026
$18.4M
TrainingP41GM103422 · NIGMS · WASHINGTON UNIVERSITY · PI YARASHESKI, KEVIN E · 2012 to 2019
$12.0M
Meninges-to-astrocyte communication in cognitive functionR01AG034113 · NIA · UNIVERSITY OF VIRGINIA · PI KIPNIS, JONATHAN · 2010 to 2019
$3.8M
Immune system supports brain functionR37AG034113 · NIA · WASHINGTON UNIVERSITY · PI Jonathan Kipnis · 2020 to 2026
$3.7M
A Biomedical Mass Spectrometry Resource: Ongoing Driving Biomedical ProjectsR24GM136766 · NIGMS · WASHINGTON UNIVERSITY · PI GROSS, MICHAEL L · 2020 to 2022
$2.3M
Lymphatic drainage dysfunction in chronic hypertensionR01HL176017 · NHLBI · YALE UNIVERSITY · PI Helene D Benveniste, Anne Christine Eichmann · 2024 to 2026
$2.2M
Role of meningeal lymphatic vasculature in neuroimmune communication developmentR01NS130057 · NINDS · YALE UNIVERSITY · PI Anne Christine Eichmann, AKIKO IWASAKI · 2023 to 2026
$2.1M
NCATS NIH HHS UL1 TR000448NCI NIH HHS P30 CA091842NHLBI NIH HHS R01 HL176017NIA NIH HHS P01 AG078106NIA NIH HHS R01 AG034113NIA NIH HHS R37 AG034113NIGMS NIH HHS P41 GM103422NIGMS NIH HHS R24 GM136766NINDS NIH HHS R01 NS130057
6 · The paper itself

Abstract

Meningeal lymphatics serve as an outlet for cerebrospinal fluid, and their dysfunction is associated with various neurodegenerative conditions. Previous studies have demonstrated that dysfunctional meningeal lymphatics evoke behavioral changes, but the neural mechanisms underlying these changes have remained elusive. Here, we show that prolonged impairment of meningeal lymphatics alters the balance of cortical excitatory and inhibitory synaptic inputs, accompanied by deficits in memory tasks. These synaptic and behavioral alterations induced by lymphatic dysfunction are mediated by microglia, leading to increased expression of the interleukin 6 gene (Il6). IL-6 drives inhibitory synapse phenotypes via a combination of trans- and classical IL-6 signaling. Restoring meningeal lymphatic function in aged mice reverses age-associated synaptic and behavioral alterations. Our findings suggest that dysfunctional meningeal lymphatics adversely impact cortical circuitry through an IL-6-dependent mechanism and identify a potential target for treating aging-associated cognitive decline.

Indexed as

MeningesMicrogliaSynapsesAgingAnimalsFemaleInterleukin-6MaleMiceMice, Inbred C57BLSignal TransductionInterleukin-6agingE/I balanceIL-6meningeal lymphaticsmeningeasmicroglianeuroimmunologysynapseVEGF-CVEGFR3

Identifiers

PMID40120575
PMCPMC12086007

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.