Evidence map›Paper›PMID 36184639›Full record

ArticleNature communications2022

The alarmin interleukin-1α triggers secondary degeneration through reactive astrocytes and endothelium after spinal cord injury.

Floriane Bretheau, Adrian Castellanos-Molina, Dominic Bélanger, Maxime Kusik, Benoit Mailhot, Ana Boisvert, Nicolas Vallières, Martine Lessard, Matthias Gunzer, Xiaoyu Liu and 3 more

Open access · goldAbstract read
In one paragraph

Article in Nature communications, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 42 papers.

0numbers the graph read from it
0cells of the map it votes in
42citing papers in PubMed
8.2field-weighted citation impact, top 1% 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

42 citing papers in PubMed, 60 citations in OpenAlex.

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  8. RPS3-Enriched Extracellular Vesicles Mediate Liver-Spinal Cord Inter-Organ Communication.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2026
    Article
  9. Article
  10. Amyloid-Frontiers in neuroscience · 2026
    Review
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  12. IL1A enhances TNF-induced retinal ganglion cell death.Frontiers in aging neuroscience · 2026
    Article
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  14. Review
  15. Article
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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

13 authors at 3 institutions in 3 countries.

Floriane BretheauAxe neurosciences du Centre de recherche du Centre hospitalier universitaire (CHU) de Québec-Université Laval et Département de médecine moléculaire de l'Université Laval, Québec, G1V 4G2, QC, Canada.
Adrian Castellanos-MolinaAxe neurosciences du Centre de recherche du Centre hospitalier universitaire (CHU) de Québec-Université Laval et Département de médecine moléculaire de l'Université Laval, Québec, G1V 4G2, QC, Canada.
Dominic BélangerAxe neurosciences du Centre de recherche du Centre hospitalier universitaire (CHU) de Québec-Université Laval et Département de médecine moléculaire de l'Université Laval, Québec, G1V 4G2, QC, Canada.
Maxime KusikAxe neurosciences du Centre de recherche du Centre hospitalier universitaire (CHU) de Québec-Université Laval et Département de médecine moléculaire de l'Université Laval, Québec, G1V 4G2, QC, Canada.ORCID 0000-0002-0742-4055
Benoit MailhotAxe neurosciences du Centre de recherche du Centre hospitalier universitaire (CHU) de Québec-Université Laval et Département de médecine moléculaire de l'Université Laval, Québec, G1V 4G2, QC, Canada.
Ana BoisvertAxe neurosciences du Centre de recherche du Centre hospitalier universitaire (CHU) de Québec-Université Laval et Département de médecine moléculaire de l'Université Laval, Québec, G1V 4G2, QC, Canada.
Nicolas VallièresAxe neurosciences du Centre de recherche du Centre hospitalier universitaire (CHU) de Québec-Université Laval et Département de médecine moléculaire de l'Université Laval, Québec, G1V 4G2, QC, Canada.
Martine LessardAxe neurosciences du Centre de recherche du Centre hospitalier universitaire (CHU) de Québec-Université Laval et Département de médecine moléculaire de l'Université Laval, Québec, G1V 4G2, QC, Canada.
Matthias GunzerInstitute for Experimental Immunology and Imaging, University Hospital Essen, University of Duisburg-Essen, Essen, D-45141, Germany.ORCID 0000-0002-5534-6055
Xiaoyu LiuCharles E. Schmidt College of Medicine, Florida Atlantic University, Jupiter, 33458, FL, USA.
Éric BoilardAxe maladies infectieuses et immunitaires du Centre de recherche du CHU de Québec-Université Laval et Centre de recherche en arthrite de l'Université Laval, Québec, G1V 4G2, QC, Canada.ORCID 0000-0001-6319-6432
Ning QuanCharles E. Schmidt College of Medicine, Florida Atlantic University, Jupiter, 33458, FL, USA.
Steve LacroixAxe neurosciences du Centre de recherche du Centre hospitalier universitaire (CHU) de Québec-Université Laval et Département de médecine moléculaire de l'Université Laval, Québec, G1V 4G2, QC, Canada. Steve.Lacroix@crchul.ulaval.ca.ORCID 0000-0003-0781-6371
Centre hospitalier de l'Université Laval · CAFlorida Atlantic University · USLeibniz Institute for Analytical Sciences - ISAS · DE

Funding

Neuroinflammation, Neuronal IL-1R1, and BehaviorR01NS116914 · NINDS · FLORIDA ATLANTIC UNIVERSITY · PI Ning Quan · 2020 to 2026
$2.2M
CIHR PJT-162387NINDS NIH HHS R01 NS116914
6 · The paper itself

Abstract

Spinal cord injury (SCI) triggers neuroinflammation, and subsequently secondary degeneration and oligodendrocyte (OL) death. We report that the alarmin interleukin (IL)-1α is produced by damaged microglia after SCI. Intra-cisterna magna injection of IL-1α in mice rapidly induces neutrophil infiltration and OL death throughout the spinal cord, mimicking the injury cascade seen in SCI sites. These effects are abolished through co-treatment with the IL-1R1 antagonist anakinra, as well as in IL-1R1-knockout mice which demonstrate enhanced locomotor recovery after SCI. Conditional restoration of IL-1R1 expression in astrocytes or endothelial cells (ECs), but not in OLs or microglia, restores IL-1α-induced effects, while astrocyte- or EC-specific Il1r1 deletion reduces OL loss. Conditioned medium derived from IL-1α-stimulated astrocytes results in toxicity for OLs; further, IL-1α-stimulated astrocytes generate reactive oxygen species (ROS), and blocking ROS production in IL-1α-treated or SCI mice prevented OL loss. Thus, after SCI, microglia release IL-1α, inducing astrocyte- and EC-mediated OL degeneration.

Indexed as

Interleukin-1alphaSpinal Cord InjuriesAlarminsAnimalsAstrocytesCulture Media, ConditionedEndothelial CellsEndotheliumInterleukin 1 Receptor Antagonist ProteinMiceMice, Inbred C57BLMice, KnockoutMicrogliaReactive Oxygen SpeciesSpinal CordAlarminsCulture Media, ConditionedIl1a protein, mouseInterleukin-1alphaInterleukin 1 Receptor Antagonist ProteinReactive Oxygen Species

Identifiers

PMID36184639
PMCPMC9527244
OpenAlexW4299285260

What OpenQuestion holds

Textmetadata
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.