Evidence map›Paper›PMID 34758338›Full record

ArticleImmunity2021

Prenatal interleukin 6 elevation increases glutamatergic synapse density and disrupts hippocampal connectivity in offspring.

Filippo Mirabella, Genni Desiato, Sara Mancinelli, Giuliana Fossati, Marco Rasile, Raffaella Morini, Marija Markicevic, Christina Grimm, Clara Amegandjin, Alberto Termanini and 8 more

Open access · bronzeAbstract read
In one paragraph

Article in Immunity, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 83 papers.

0numbers the graph read from it
0cells of the map it votes in
83citing papers in PubMed
8.6field-weighted citation impact, top 2% of its field
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

83 citing papers in PubMed, 129 citations in OpenAlex.

  1. Article
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  4. Mast Cells in the Developing Brain.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2026
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23 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

18 authors at 5 institutions in 3 countries.

Filippo MirabellaDepartment of Biomedical Sciences, Humanitas University, Via Rita Levi Montalcini 4, 20090 Pieve Emanuele, Milan, Italy; IRCCS Humanitas Research Hospital, via Manzoni 56, 20089 Rozzano, Milan, Italy.
Genni DesiatoIRCCS Humanitas Research Hospital, via Manzoni 56, 20089 Rozzano, Milan, Italy; Institute of Neuroscience - National Research Council, 20139 Milan, Italy.
Sara MancinelliIRCCS Humanitas Research Hospital, via Manzoni 56, 20089 Rozzano, Milan, Italy.
Giuliana FossatiIRCCS Humanitas Research Hospital, via Manzoni 56, 20089 Rozzano, Milan, Italy.
Marco RasileDepartment of Biomedical Sciences, Humanitas University, Via Rita Levi Montalcini 4, 20090 Pieve Emanuele, Milan, Italy.
Raffaella MoriniIRCCS Humanitas Research Hospital, via Manzoni 56, 20089 Rozzano, Milan, Italy.
Marija MarkicevicNeuroscience Center Zürich, ETH Zürich and University of Zürich, Zürich 8057, Switzerland.
Christina GrimmNeuroscience Center Zürich, ETH Zürich and University of Zürich, Zürich 8057, Switzerland.
Clara AmegandjinDepartment of Neurosciences, Université de Montréal, Montréal, QC, Canada; CHU Sainte-Justine Research Center, Montréal, QC, Canada.
Alberto TermaniniBioinformatic Unit, Humanitas Clinical and Research Center, 20089 Rozzano, Milan, Italy.
Clelia PeanoInstitute of Genetic and Biomedical Research, UoS Milan, National Research Council, 20089 Rozzano, Milan, Italy; Genomic Unit, Humanitas Clinical and Research Center, 20089 Rozzano, Milan, Italy.
Paolo KunderfrancoBioinformatic Unit, Humanitas Clinical and Research Center, 20089 Rozzano, Milan, Italy.
Graziella di CristoDepartment of Neurosciences, Université de Montréal, Montréal, QC, Canada; CHU Sainte-Justine Research Center, Montréal, QC, Canada.
Valerio ZerbiNeuroscience Center Zürich, ETH Zürich and University of Zürich, Zürich 8057, Switzerland; Neural Control of Movement Lab, Department of Health Sciences and Technology, ETH Zürich, Zürich 8057, Switzerland.
Elisabetta MennaIRCCS Humanitas Research Hospital, via Manzoni 56, 20089 Rozzano, Milan, Italy; Institute of Neuroscience - National Research Council, 20139 Milan, Italy.
Simona LodatoDepartment of Biomedical Sciences, Humanitas University, Via Rita Levi Montalcini 4, 20090 Pieve Emanuele, Milan, Italy; IRCCS Humanitas Research Hospital, via Manzoni 56, 20089 Rozzano, Milan, Italy.
Michela MatteoliIRCCS Humanitas Research Hospital, via Manzoni 56, 20089 Rozzano, Milan, Italy; Institute of Neuroscience - National Research Council, 20139 Milan, Italy. Electronic address: michela.matteoli@hunimed.eu.
Davide PozziDepartment of Biomedical Sciences, Humanitas University, Via Rita Levi Montalcini 4, 20090 Pieve Emanuele, Milan, Italy; IRCCS Humanitas Research Hospital, via Manzoni 56, 20089 Rozzano, Milan, Italy. Electronic address: davide.pozzi@humanitasresearch.it.
Humanitas University · ITIRCCS Humanitas Research Hospital · ITNational Research Council · ITUniversity of Zurich · CHCentre Hospitalier Universitaire Sainte-Justine · CA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Early prenatal inflammatory conditions are thought to be a risk factor for different neurodevelopmental disorders. Maternal interleukin-6 (IL-6) elevation during pregnancy causes abnormal behavior in offspring, but whether these defects result from altered synaptic developmental trajectories remains unclear. Here we showed that transient IL-6 elevation via injection into pregnant mice or developing embryos enhanced glutamatergic synapses and led to overall brain hyperconnectivity in offspring into adulthood. IL-6 activated synaptogenesis gene programs in glutamatergic neurons and required the transcription factor STAT3 and expression of the RGS4 gene. The STAT3-RGS4 pathway was also activated in neonatal brains during poly(I:C)-induced maternal immune activation, which mimics viral infection during pregnancy. These findings indicate that IL-6 elevation at early developmental stages is sufficient to exert a long-lasting effect on glutamatergic synaptogenesis and brain connectivity, providing a mechanistic framework for the association between prenatal inflammatory events and brain neurodevelopmental disorders.

Indexed as

Maternal ExposurePrenatal Exposure Delayed EffectsAnimalsCytokinesDisease Models, AnimalDisease SusceptibilityFemaleHippocampusInflammation MediatorsInterleukin-6MiceNeuronsPregnancySignal TransductionSynapsesSynaptic TransmissionCytokinesInflammation MediatorsInterleukin-6brain connectivityglutamatergic transmissionIL-6maternal immune activationneurodevelopmental disorderneuroinflammationpro-inflammatory cytokinesRGS4STAT3synaptic development

Identifiers

PMID34758338
PMCPMC8585508
OpenAlexW3207129859

What OpenQuestion holds

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LicenceCC BY-NC-ND
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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.