Evidence map›Paper›PMID 35377817›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2022

Prenatal disruption of blood-brain barrier formation via cyclooxygenase activation leads to lifelong brain inflammation.

Qiuying Zhao, Weiye Dai, Hui Yu Chen, Russell E Jacobs, Berislav V Zlokovic, Brett T Lund, Axel Montagne, Alexandre Bonnin

Abstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 31 papers.

0numbers the graph read from it
0cells of the map it votes in
31citing 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

31 citing papers in PubMed.

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  5. Therapeutic potential ofIn silico pharmacology · 2026
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  17. The neural and cardiovascular effects of exposure of gram-positive bacterial inflammation in preterm fetal sheep.Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism · 2024
    Article
  18. Review
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

8 authors.

Qiuying ZhaoDepartment of Physiology and Neuroscience, Zilkha Neurogenetic Institute, Keck School of Medicine, University of Southern California, Los Angeles, CA 90089.ORCID 0000-0003-3797-9972
Weiye DaiMaster of Science, Molecular Pharmacology and Toxicology, School of Pharmacy, University of Southern California, Los Angeles, CA 90089.ORCID 0000-0001-8069-2331
Hui Yu ChenMaster of Medical Physiology, Keck School of Medicine, University of Southern California, Los Angeles, CA 90089.
Russell E JacobsDepartment of Physiology and Neuroscience, Zilkha Neurogenetic Institute, Keck School of Medicine, University of Southern California, Los Angeles, CA 90089.ORCID 0000-0002-1382-8486
Berislav V ZlokovicDepartment of Physiology and Neuroscience, Zilkha Neurogenetic Institute, Keck School of Medicine, University of Southern California, Los Angeles, CA 90089.
Brett T LundDepartment of Neurology, Keck School of Medicine, University of Southern California, Los Angeles, CA 90089.
Axel MontagneUK Dementia Research Institute, Edinburgh Medical School, University of Edinburgh, EH16 4SB Edinburgh, United Kingdom.ORCID 0000-0001-5564-985X
Alexandre BonninDepartment of Physiology and Neuroscience, Zilkha Neurogenetic Institute, Keck School of Medicine, University of Southern California, Los Angeles, CA 90089.ORCID 0000-0001-7549-6598

Funding

USCADRC Diversity Supplement PachicanoP30AG066530 · NIA · UNIVERSITY OF SOUTHERN CALIFORNIA · PI HELENA Chang CHUI, ARTHUR W TOGA · 2020 to 2026
$27.8M
Prenatal stress and antidepressants effects on offspring brain developmentR01MH106806 · NIMH · UNIVERSITY OF SOUTHERN CALIFORNIA · PI BONNIN, ALEXANDRE · 2016 to 2020
$2.1M
Prenatal inflammation disrupts blood-brain barrier development and long-term function.R01NS126981 · NINDS · UNIVERSITY OF SOUTHERN CALIFORNIA · PI Alexandre Bonnin · 2023 to 2026
$1.6M
NIA NIH HHS P30 AG066530NIMH NIH HHS R01 MH106806NINDS NIH HHS R01 NS126981
6 · The paper itself

Abstract

Gestational maternal immune activation (MIA) in mice induces persistent brain microglial activation and a range of neuropathologies in the adult offspring. Although long-term phenotypes are well documented, how MIA in utero leads to persistent brain inflammation is not well understood. Here, we found that offspring of mothers treated with polyriboinosinic–polyribocytidylic acid [poly(I:C)] to induce MIA at gestational day 13 exhibit blood–brain barrier (BBB) dysfunction throughout life. Live MRI in utero revealed fetal BBB hyperpermeability 2 d after MIA. Decreased pericyte–endothelium coupling in cerebral blood vessels and increased microglial activation were found in fetal and 1- and 6-mo-old offspring brains. The long-lasting disruptions result from abnormal prenatal BBB formation, driven by increased proliferation of cyclooxygenase-2 (COX2; Ptgs2)-expressing microglia in fetal brain parenchyma and perivascular spaces. Targeted deletion of the Ptgs2 gene in fetal myeloid cells or treatment with the inhibitor celecoxib 24 h after immune activation prevented microglial proliferation and disruption of BBB formation and function, showing that prenatal COX2 activation is a causal pathway of MIA effects. Thus, gestational MIA disrupts fetal BBB formation, inducing persistent BBB dysfunction, which promotes microglial overactivation and behavioral alterations across the offspring life span. Taken together, the data suggest that gestational MIA disruption of BBB formation could be an etiological contributor to neuropsychiatric disorders.

Indexed as

Blood-Brain BarrierCyclooxygenase 2EncephalitisMaternal-Fetal ExchangeMicrogliaPrenatal Exposure Delayed EffectsAnimalsCelecoxibCyclooxygenase 2 InhibitorsFemaleGene DeletionMicePoly I-CPregnancyCelecoxibCyclooxygenase 2Cyclooxygenase 2 InhibitorsPoly I-CPtgs2 protein, mouseblood–brain barriercyclooxygenasefetal programinginflammationpregnancy

Identifiers

PMID35377817
PMCPMC9169666

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.