Evidence map›Paper›PMID 25846981›Full record

ArticleGlia2015

Identification of a chronic non-neurodegenerative microglia activation state in a mouse model of peroxisomal β-oxidation deficiency.

Simon Verheijden, Lien Beckers, Andrea Casazza, Oleg Butovsky, Massimiliano Mazzone, Myriam Baes

Open access · greenAbstract read
In one paragraph

Article in Glia, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed
2.7field-weighted citation impact, top 10% 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

24 citing papers in PubMed, 42 citations in OpenAlex.

  1. Article
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  8. Article
  9. The potential roles of mJournal of neuroinflammation · 2021
    Article
  10. Exploring the VISTA of microglia: immune checkpoints in CNS inflammation.Journal of molecular medicine (Berlin, Germany) · 2020
    Review
  11. Article
  12. Article
  13. Peroxisomes and Innate Immunity: Antiviral Response and Beyond.International journal of molecular sciences · 2019
    Review
  14. Article
  15. Article
  16. Review
  17. Article
  18. Article
  19. 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

6 authors at 3 institutions in 2 countries.

Simon VerheijdenDepartment of Pharmaceutical and Pharmacological Sciences, KU Leuven-University of Leuven, Cell Metabolism, Leuven, Belgium.
Lien BeckersDepartment of Pharmaceutical and Pharmacological Sciences, KU Leuven-University of Leuven, Cell Metabolism, Leuven, Belgium.
Andrea CasazzaDepartment of Oncology, Laboratory of Molecular Oncology and Angiogenesis, KU Leuven-University of Leuven, Leuven, Belgium.
Oleg ButovskyCenter for Neurologic Diseases, Department of Neurology, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts.
Massimiliano MazzoneDepartment of Oncology, Laboratory of Molecular Oncology and Angiogenesis, KU Leuven-University of Leuven, Leuven, Belgium.
Myriam BaesDepartment of Pharmaceutical and Pharmacological Sciences, KU Leuven-University of Leuven, Cell Metabolism, Leuven, Belgium.
KU Leuven · BEHarvard University · USVIB-KU Leuven Center for Cancer Biology · BE

Funding

Targeting TGFb/IFNy-IRF8 Signaling to Modulate Monocytes and their Crosstalk with Microglia and Astrocytes to Treat Multiple SclerosisR01NS088137 · NINDS · BRIGHAM AND WOMEN'S HOSPITAL · PI Oleg Butovsky · 2014 to 2026
$4.9M
NINDS NIH HHS R01 NS088137
6 · The paper itself

Abstract

The functional diversity and molecular adaptations of reactive microglia in the chronically inflamed central nervous system (CNS) are poorly understood. We previously showed that mice lacking multifunctional protein 2 (MFP2), a pivotal enzyme in peroxisomal β-oxidation, persistently accumulate reactive myeloid cells in the gray matter of the CNS. Here, we show that the increased numbers of myeloid cells solely derive from the proliferation of resident microglia and not from infiltrating monocytes. We defined the signature of Mfp2(-/-) microglia by gene expression profiling after acute isolation, which was validated by quantitative polymerase reaction (qPCR), immunohistochemical, and flow cytometric analysis. The features of Mfp2(-/-) microglia were compared with those from SOD1(G93A) mice, an amyotrophic lateral sclerosis model. In contrast to the neurodegenerative milieu of SOD1(G93A) spinal cord, neurons were intact in Mfp2(-/-) brain and Mfp2(-/-) microglia lacked signs of phagocytic and neurotoxic activity. The chronically reactive state of Mfp2(-/-) microglia was accompanied by the downregulation of markers that specify the unique microglial signature in homeostatic conditions. In contrast, mammalian target of rapamycin (mTOR) and downstream glycolytic and protein translation pathways were induced, indicative of metabolic adaptations. Mfp2(-/-) microglia were immunologically activated but not polarized to a pro- or anti-inflammatory phenotype. A peripheral lipopolysaccharide challenge provoked an exaggerated inflammatory response in Mfp2(-/-) brain, consistent with a primed state. Taken together, we demonstrate that chronic activation of resident microglia does not necessarily lead to phagocytosis nor overt neurotoxicity.

Indexed as

Alternative SplicingAmyotrophic Lateral SclerosisAnimalsBrainCells, CulturedDisease Models, AnimalHomeostasisLipopolysaccharidesMice, KnockoutMice, TransgenicMicrogliaNeuroimmunomodulationNeuronsPeroxisomal Multifunctional Protein-2PhagocytosisSpinal CordHsd17b4 protein, mouseLipopolysaccharidesmTOR protein, mousePeroxisomal Multifunctional Protein-2TOR Serine-Threonine KinasesmicrogliamTORmultifunctional protein 2neuroinflammationperoxisomesphagocytosis

Identifiers

PMID25846981
PMCPMC6572738
OpenAlexW1535060291

What OpenQuestion holds

Textmetadata
LicenceTDM
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.