Evidence map›Paper›PMID 31213545›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2019

pHERV-W envelope protein fuels microglial cell-dependent damage of myelinated axons in multiple sclerosis.

David Kremer, Joel Gruchot, Vivien Weyers, Lisa Oldemeier, Peter Göttle, Luke Healy, Jeong Ho Jang, Yu Kang T Xu, Christina Volsko, Ranjan Dutta and 4 more

Open access · bronzeAbstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 71 papers.

0numbers the graph read from it
0cells of the map it votes in
71citing papers in PubMed
7.7field-weighted citation impact, top 2% 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

71 citing papers in PubMed, 114 citations in OpenAlex.

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  13. Multiple sclerosis and infection: history, EBV, and the search for mechanism.Microbiology and molecular biology reviews : MMBR · 2025
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11 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

14 authors at 3 institutions in 3 countries.

David KremerDepartment of Neurology, Medical Faculty, Heinrich Heine University, 40225 Düsseldorf, Germany.
Joel GruchotDepartment of Neurology, Medical Faculty, Heinrich Heine University, 40225 Düsseldorf, Germany.
Vivien WeyersDepartment of Neurology, Medical Faculty, Heinrich Heine University, 40225 Düsseldorf, Germany.
Lisa OldemeierDepartment of Neurology, Medical Faculty, Heinrich Heine University, 40225 Düsseldorf, Germany.
Peter GöttleDepartment of Neurology, Medical Faculty, Heinrich Heine University, 40225 Düsseldorf, Germany.ORCID 0000-0001-6830-0956
Luke HealyMontreal Neurological Institute & Hospital, McGill University, Montreal, QC H4A 3K9, Canada.
Jeong Ho JangMontreal Neurological Institute & Hospital, McGill University, Montreal, QC H4A 3K9, Canada.
Yu Kang T XuMontreal Neurological Institute & Hospital, McGill University, Montreal, QC H4A 3K9, Canada.
Christina VolskoDepartment of Neurosciences, Lerner Research Institute, Cleveland Clinic, Cleveland, OH 44195.
Ranjan DuttaDepartment of Neurosciences, Lerner Research Institute, Cleveland Clinic, Cleveland, OH 44195.ORCID 0000-0001-8502-4455
Bruce D TrappDepartment of Neurosciences, Lerner Research Institute, Cleveland Clinic, Cleveland, OH 44195.
Hervé PerronGeNeuro, CH-1228 Geneva, Switzerland.
Hans-Peter HartungDepartment of Neurology, Medical Faculty, Heinrich Heine University, 40225 Düsseldorf, Germany.
Patrick KüryDepartment of Neurology, Medical Faculty, Heinrich Heine University, 40225 Düsseldorf, Germany; kuery@uni-duesseldorf.de.ORCID 0000-0002-2654-1126
Heinrich Heine University Düsseldorf · DECleveland Clinic Lerner College of Medicine · USMontreal Neurological Institute and Hospital · CA

Funding

Pathogenesis of Neurological Disability in Primary Diseases of MyelinR35NS097303 · NINDS · CLEVELAND CLINIC LERNER COM-CWRU · PI TRAPP, BRUCE D · 2017 to 2024
$6.9M
MicroRNAs as critical regulators of remyelination in Multiple SclerosisR01NS096148 · NINDS · CLEVELAND CLINIC LERNER COM-CWRU · PI DUTTA, RANJAN · 2016 to 2020
$1.7M
Pathogenesis of Tissue Destruction in Multiple SclerosisR01NS091683 · NINDS · CLEVELAND CLINIC LERNER COM-CWRU · PI TRAPP, BRUCE D · 2015 to 2016
$491k
NINDS NIH HHS R01 NS091683NINDS NIH HHS R01 NS096148NINDS NIH HHS R35 NS097303
6 · The paper itself

Abstract

Axonal degeneration is central to clinical disability and disease progression in multiple sclerosis (MS). Myeloid cells such as brain-resident microglia and blood-borne monocytes are thought to be critically involved in this degenerative process. However, the exact underlying mechanisms have still not been clarified. We have previously demonstrated that human endogenous retrovirus type W (HERV-W) negatively affects oligodendroglial precursor cell (OPC) differentiation and remyelination via its envelope protein pathogenic HERV-W (pHERV-W) ENV (formerly MS-associated retrovirus [MSRV]-ENV). In this current study, we investigated whether pHERV-W ENV also plays a role in axonal injury in MS. We found that in MS lesions, pHERV-W ENV is present in myeloid cells associated with axons. Focusing on progressive disease stages, we could then demonstrate that pHERV-W ENV induces a degenerative phenotype in microglial cells, driving them toward a close spatial association with myelinated axons. Moreover, in pHERV-W ENV-stimulated myelinated cocultures, microglia were found to structurally damage myelinated axons. Taken together, our data suggest that pHERV-W ENV-mediated microglial polarization contributes to neurodegeneration in MS. Thus, this analysis provides a neurobiological rationale for a recently completed clinical study in MS patients showing that antibody-mediated neutralization of pHERV-W ENV exerts neuroprotective effects.

Indexed as

AnimalsAxonsCell DifferentiationClinical Trials, Phase II as TopicCoculture TechniquesEndogenous RetrovirusesFemaleGene ExpressionHumansMaleMicrogliaMultiple SclerosisMyelin SheathNeuronsRatsRats, WistarViral Envelope Proteinsaxonal degenerationdemyelinationendogenous retrovirusmultiple sclerosismyeloid cells

Identifiers

PMID31213545
PMCPMC6660731
OpenAlexW2951951408

What OpenQuestion holds

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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.