Evidence map›Paper›PMID 33407565›Full record

ArticleJournal of neuroinflammation2021

mGlu3 receptor regulates microglial cell reactivity in neonatal rats.

Manuela Zinni, Jérôme Mairesse, Julien Pansiot, Francesco Fazio, Luisa Iacovelli, Nico Antenucci, Rosamaria Orlando, Ferdinando Nicoletti, Daniel Vaiman, Olivier Baud

Open access · goldAbstract read
In one paragraph

Article in Journal of neuroinflammation, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed
1.8field-weighted citation impact, top 15% 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

18 citing papers in PubMed, 27 citations in OpenAlex.

  1. Article
  2. Review
  3. Role of astrocytes in the pathogenesis of perinatal brain injury.Molecular medicine (Cambridge, Mass.) · 2025
    Review
  4. Article
  5. Receptors on Microglia.Advances in neurobiology · 2024
    Review
  6. Article
  7. Article
  8. Article
  9. Article
  10. Review
  11. Advances in translating mGluPharmacology, biochemistry, and behavior · 2022
    Review
  12. Article
  13. Article
  14. Article
  15. Effects of Metformin on Spontaneous CaInternational journal of molecular sciences · 2021
    Article
  16. Review
  17. Review
  18. 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

10 authors at 5 institutions in 3 countries.

Manuela ZinniInserm UMR1141 NeuroDiderot, Univ. Paris Diderot, Sorbonne Paris Cité, Paris, France.
Jérôme MairesseInserm UMR1141 NeuroDiderot, Univ. Paris Diderot, Sorbonne Paris Cité, Paris, France.
Julien PansiotInserm UMR1141 NeuroDiderot, Univ. Paris Diderot, Sorbonne Paris Cité, Paris, France.
Francesco FazioIRCCS Neuromed, Pozzilli, Italy.
Luisa IacovelliDepartment of Physiology and Pharmacology, Sapienza University of Rome, Rome, Italy.
Nico AntenucciDepartment of Physiology and Pharmacology, Sapienza University of Rome, Rome, Italy.
Rosamaria OrlandoDepartment of Physiology and Pharmacology, Sapienza University of Rome, Rome, Italy.
Ferdinando NicolettiIRCCS Neuromed, Pozzilli, Italy.
Daniel VaimanInstitut Cochin, Inserm U1016, UMR8104 CNRS, Paris, France.
Olivier BaudInserm UMR1141 NeuroDiderot, Univ. Paris Diderot, Sorbonne Paris Cité, Paris, France. olivier.baud@hcuge.ch.ORCID http://orcid.org/0000-0001-5021-0522
Sapienza University of Rome · ITInserm · FRIstituto Neurologico Mediterraneo · ITUniversity of Geneva · CHCentre National de la Recherche Scientifique · FR

Funding

ANR ANR-16-CE18-0010
6 · The paper itself

Abstract

backgroundPerinatal inflammation is a key factor of brain vulnerability in neonates born preterm or with intra-uterine growth restriction (IUGR), two leading conditions associated with brain injury and responsible for neurocognitive and behavioral disorders. Systemic inflammation is recognized to activate microglia, known to be the critical modulators of brain vulnerability. Although some evidence supports a role for metabotropic glutamate receptor 3 (mGlu3 receptor) in modulation of neuroinflammation, its functions are still unknown in the developing microglia.

methodsWe used a double-hit rat model of perinatal brain injury induced by a gestational low-protein diet combined with interleukin-1β injections (LPD/IL-1β), mimicking both IUGR and prematurity-related inflammation. The effect of LPD/IL-1β on mGlu3 receptor expression and the effect of mGlu3 receptor modulation on microglial reactivity were investigated using a combination of pharmacological, histological, and molecular and genetic approaches.

resultsExposure to LPD/IL-1β significantly downregulated Grm3 gene expression in the developing microglia. Both transcriptomic analyses and pharmacological modulation of mGlu3 receptor demonstrated its central role in the control of inflammation in resting and activated microglia. Microglia reactivity to inflammatory challenge induced by LPD/IL-1β exposure was reduced by an mGlu3 receptor agonist. Conversely, both specific pharmacological blockade, siRNA knock-down, and genetic knock-out of mGlu3 receptors mimicked the pro-inflammatory phenotype observed in microglial cells exposed to LPD/IL-1β.

conclusionsOverall, these data show that Grm3 plays a central role in the regulation of microglial reactivity in the immature brain. Selective pharmacological activation of mGlu3 receptors may prevent inflammatory-induced perinatal brain injury.

Indexed as

AnimalsAnimals, NewbornBrain InjuriesFemaleGene Expression ProfilingMiceMice, Inbred C57BLMice, KnockoutMicrogliaPregnancyRatsRats, Sprague-DawleyReceptors, Metabotropic Glutamatemetabotropic glutamate receptor 3Receptors, Metabotropic GlutamatemGlu3 receptorMicroglia reactivityPerinatal neuroinflammation

Identifiers

PMID33407565
PMCPMC7789385
OpenAlexW3118727609

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.