Evidence map›Paper›PMID 28970572›Full record

ArticleScientific reports2017

Schwann cells promote post-traumatic nerve inflammation and neuropathic pain through MHC class II.

Maike Hartlehnert, Angelika Derksen, Tim Hagenacker, David Kindermann, Maria Schäfers, Mathias Pawlak, Bernd C Kieseier, Gerd Meyer Zu Horste

Open access · goldAbstract read
In one paragraph

Article in Scientific reports, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 45 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
45citing papers in PubMed, 1 pooled it
2.8field-weighted citation impact, top 9% 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

45 citing papers in PubMed, 1 synthesis or guideline pooled it, 77 citations in OpenAlex.

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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

8 authors at 4 institutions in 2 countries.

Maike HartlehnertDepartment of Neurology, University Hospital Münster, Münster, Germany.
Angelika DerksenDepartment of Neurology, Heinrich-Heine-University, Medical Faculty, Düsseldorf, Germany.
Tim HagenackerDepartment of Neurology, University of Duisburg-Essen, Essen, Germany.
David KindermannDepartment of Neurology, University of Duisburg-Essen, Essen, Germany.
Maria SchäfersDepartment of Neurology, University of Duisburg-Essen, Essen, Germany.
Mathias PawlakEvergrande Center for Immunologic Diseases, Harvard Medical School and Brigham and Women's Hospital, Boston, MA, USA.
Bernd C KieseierDepartment of Neurology, Heinrich-Heine-University, Medical Faculty, Düsseldorf, Germany.
Gerd Meyer Zu HorsteDepartment of Neurology, University Hospital Münster, Münster, Germany. gerd.mzh@uni-muenster.de.ORCID 0000-0002-4341-4719
University of Duisburg-Essen · DEHeinrich Heine University Düsseldorf · DEUniversity Hospital Münster · DEBrigham and Women's Hospital · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The activation of T helper cells requires antigens to be exposed on the surface of antigen presenting cells (APCs) via MHC class II (MHC-II) molecules. Expression of MHC-II is generally limited to professional APCs, but other cell types can express MHC-II under inflammatory conditions. However, the importance of these conditional APCs is unknown. We and others have previously shown that Schwann cells are potentially conditional APCs, but the functional relevance of MHC-II expression by Schwann cells has not been studied in vivo. Here, we conditionally deleted the MHC-II β-chain from myelinating Schwann cells in mice and investigated how this influenced post-traumatic intraneural inflammation and neuropathic pain using the chronic constriction injury (CCI) model. We demonstrate that deletion of MHC-II in myelinating Schwann cells reduces thermal hyperalgesia and, to a lesser extent, also diminishes mechanical allodynia in CCI in female mice. This was accompanied by a reduction of intraneural CD4+ T cells and greater preservation of preferentially large-caliber axons. Activation of T helper cells by MHC-II on Schwann cells thus promotes post-traumatic axonal loss and neuropathic pain. Hence, we provide experimental evidence that Schwann cells gain antigen-presenting function in vivo and modulate local immune responses and diseases in the peripheral nerves.

Indexed as

AnimalsAntigen-Presenting CellsConstriction, PathologicDisease Models, AnimalHistocompatibility Antigens Class IIHumansHyperalgesiaInflammationLymphocyte ActivationMiceNeuralgiaPeripheral NervesSchwann CellsTh1 CellsHistocompatibility Antigens Class II

Identifiers

PMID28970572
PMCPMC5624882
OpenAlexW2757572192

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.