Evidence map›Paper›PMID 26340347›Full record

ArticlePloS one2015

The NG2 Proteoglycan Protects Oligodendrocyte Precursor Cells against Oxidative Stress via Interaction with OMI/HtrA2.

Frank Maus, Dominik Sakry, Fabien Binamé, Khalad Karram, Krishnaraj Rajalingam, Colin Watts, Richard Heywood, Rejko Krüger, Judith Stegmüller, Hauke B Werner and 3 more

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed
2.4field-weighted citation impact, top 11% 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

13 citing papers in PubMed, 30 citations in OpenAlex.

  1. Review
  2. Cell death in glioblastoma and the central nervous system.Cellular oncology (Dordrecht, Netherlands) · 2025
    Review
  3. A Synopsis of Biomarkers in Glioblastoma: Past and Present.Current issues in molecular biology · 2024
    Review
  4. Article
  5. Article
  6. Review
  7. Review
  8. Article
  9. Role of metabolism in cancer cell radioresistance and radiosensitization methods.Journal of experimental & clinical cancer research : CR · 2018
    Review
  10. Article
  11. Review
  12. Amylin alters human brain pericyte viability and NG2 expression.Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism · 2017
    Article
  13. 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

13 authors at 4 institutions in 3 countries.

Frank MausDepartment of Biology, Molecular Cell Biology, Johannes Gutenberg University, Mainz, Germany.
Dominik SakryDepartment of Biology, Molecular Cell Biology, Johannes Gutenberg University, Mainz, Germany.
Fabien BinaméDepartment of Biology, Molecular Cell Biology, Johannes Gutenberg University, Mainz, Germany.
Khalad KarramDepartment of Biology, Molecular Cell Biology, Johannes Gutenberg University, Mainz, Germany; Institute for Molecular Medicine, University Medical Center of the Johannes-Gutenberg University, Mainz, Germany.
Krishnaraj RajalingamResearch Center for Immune Therapy, Institute for Immunology, Johannes Gutenberg University of Mainz, Medical Center Mainz, Mainz, Germany.
Colin WattsCambridge University, Dept. Clinical Neurosciences, Division of Neurosurgery, Cambridge, United Kingdom.
Richard HeywoodCambridge University, Dept. Clinical Neurosciences, Division of Neurosurgery, Cambridge, United Kingdom.
Rejko KrügerClinical and Experimental Neuroscience, Luxembourg Center for Systems Biomedicine, University of Luxembourg and Centre Hospitalier de Luxembourg, Luxembourg, Luxembourg; Department of Neurodegenerative Diseases, Hertie-Institute for Clinical Brain Research, and German Center for Neurodegenerative Diseases (DZNE), University of Tübingen, Tübingen, Germany.
Judith StegmüllerCellular and Molecular Neurobiology, Max Planck Institute of Experimental Medicine, Göttingen, Germany.
Hauke B WernerMax Planck Institute of Experimental Medicine, Department of Neurogenetics, Göttingen, Germany.
Klaus-Armin NaveMax Planck Institute of Experimental Medicine, Department of Neurogenetics, Göttingen, Germany.
Eva-Maria Krämer-AlbersDepartment of Biology, Molecular Cell Biology, Johannes Gutenberg University, Mainz, Germany.
Jacqueline TrotterDepartment of Biology, Molecular Cell Biology, Johannes Gutenberg University, Mainz, Germany.
Johannes Gutenberg University Mainz · DEMax Planck Institute of Experimental Medicine · DEUniversity of Cambridge · GBGerman Center for Neurodegenerative Diseases · DE

Funding

Preclinical Development of Novel MEK1/2 Inhibitors to Treat Inherited CardiomyopaR41TR001008 · NCATS · CHEMINPHARMA, LLC · PI KHIRE, UDAY R · 2013 to 2013
$105k
NCATS NIH HHS R41 TR001008
6 · The paper itself

Abstract

The NG2 proteoglycan is characteristically expressed by oligodendrocyte progenitor cells (OPC) and also by aggressive brain tumours highly resistant to chemo- and radiation therapy. Oligodendrocyte-lineage cells are particularly sensitive to stress resulting in cell death in white matter after hypoxic or ischemic insults of premature infants and destruction of OPC in some types of Multiple Sclerosis lesions. Here we show that the NG2 proteoglycan binds OMI/HtrA2, a mitochondrial serine protease which is released from damaged mitochondria into the cytosol in response to stress. In the cytosol, OMI/HtrA2 initiates apoptosis by proteolytic degradation of anti-apoptotic factors. OPC in which NG2 has been downregulated by siRNA, or OPC from the NG2-knockout mouse show an increased sensitivity to oxidative stress evidenced by increased cell death. The proapoptotic protease activity of OMI/HtrA2 in the cytosol can be reduced by the interaction with NG2. Human glioma expressing high levels of NG2 are less sensitive to oxidative stress than those with lower NG2 expression and reducing NG2 expression by siRNA increases cell death in response to oxidative stress. Binding of NG2 to OMI/HtrA2 may thus help protect cells against oxidative stress-induced cell death. This interaction is likely to contribute to the high chemo- and radioresistance of glioma.

Indexed as

Gene Expression Regulation, NeoplasticAnimalsAntibodies, NeutralizingAntigensApoptosisBrain NeoplasmsCell Line, TumorCerebellumChondroitin Sulfate Proteoglycan 4CytosolGlioblastomaHigh-Temperature Requirement A Serine Peptidase 2HumansHydrogen PeroxideMiceMice, Inbred C57BLAntibodies, NeutralizingAntigensChondroitin Sulfate Proteoglycan 4High-Temperature Requirement A Serine Peptidase 2HTRA2 protein, humanHtra2 protein, mouseHydrogen PeroxideMitochondrial ProteinsProteoglycansRNA, Small InterferingSerine Endopeptidases

Identifiers

PMID26340347
PMCPMC4560422
OpenAlexW2133942806

What OpenQuestion holds

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LicenceCC BY
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Registered trials

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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.