Evidence map›Paper›PMID 26946517›Full record

ArticleAnnals of neurology2016

In vivo imaging reveals rapid astrocyte depletion and axon damage in a model of neuromyelitis optica-related pathology.

Marina Herwerth, Sudhakar Reddy Kalluri, Rajneesh Srivastava, Tatjana Kleele, Selin Kenet, Zsolt Illes, Doron Merkler, Jeffrey L Bennett, Thomas Misgeld, Bernhard Hemmer

Open access · hybridAbstract read
In one paragraph

Article in Annals of neurology, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
25citing papers in PubMed, 1 pooled it
4.4field-weighted citation impact, top 6% 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

25 citing papers in PubMed, 1 synthesis or guideline pooled it, 43 citations in OpenAlex.

  1. Pooled it
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  3. Review
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  7. Article
  8. Axon degeneration: new actor in an old play.Neural regeneration research · 2023
    Article
  9. Article
  10. Article
  11. Review
  12. Review
  13. Review
  14. Treatment of Neuromyelitis Optica Spectrum Disorders.International journal of molecular sciences · 2021
    Review
  15. Article
  16. Review
  17. Review
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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

10 authors at 6 institutions in 5 countries.

Marina HerwerthDepartment of Neurology, Klinikum rechts der Isar, Technical University of Munich, Munich, Germany.
Sudhakar Reddy KalluriDepartment of Neurology, Klinikum rechts der Isar, Technical University of Munich, Munich, Germany.
Rajneesh SrivastavaDepartment of Neurology, Klinikum rechts der Isar, Technical University of Munich, Munich, Germany.
Tatjana KleeleInstitute of Neuronal Cell Biology, Technical University of Munich, Munich, Germany.
Selin KenetInstitute of Neuronal Cell Biology, Technical University of Munich, Munich, Germany.
Zsolt IllesDepartment of Neurology, Division of Clinical and Experimental Neuroimmunology, University of Pecs, Pecs, Hungary.
Doron MerklerDepartment of Pathology and Immunology, University of Geneva, Geneva, Switzerland.
Jeffrey L BennettDepartments of Neurology and Ophthalmology, Program in Neuroscience, University of Colorado Denver School of Medicine, Aurora, CO.
Thomas MisgeldInstitute of Neuronal Cell Biology, Technical University of Munich, Munich, Germany.
Bernhard HemmerDepartment of Neurology, Klinikum rechts der Isar, Technical University of Munich, Munich, Germany.
Munich Cluster for Systems Neurology · DEKlinikum rechts der Isar · DETechnical University of Munich · DEUniversity of Colorado Denver · USUniversity of Göttingen · DEUniversity of Southern Denmark · DK

Funding

Humoral Immunity, Astrocyte Injury, and Demyelination in Neuromyelitis OpticaR01EY022936 · NEI · UNIVERSITY OF COLORADO DENVER · PI BENNETT, JEFFREY L · 2013 to 2022
$3.8M
Colorado Autoimmunity Center of ExcellenceUM1AI110503 · NIAID · UNIVERSITY OF COLORADO DENVER · PI HOLERS, VERNON MICHAEL · 2014 to 2018
$543k
Deutsche Forschungsgemeinschaft DFG Transregio 128DFG Center for Integrated Protein Science Munich, EXC 114DFG Collaborative Research Center 870DFG Priority Program 1710European Research Council 616791European Research Council under the European Union's Seventh Framework Program FP/2007-2013 616791Gebert-Rüf FoundationGerman Center for Neurodegenerative Disease (DZNE)German Federal Ministry of Research and Education (BMBF; Competence Network Multiple Sclerosis)Guthy-Jackson FoundationKlaus-Tschira FoundationKlinikum rechts der Isar of the Technical University of MunichMunich Center for Systems Neurology SyNergy EXC 1010National MS SocietyNEI NIH HHS R01 EY022936NIAID NIH HHS UM1 AI110503NIH HHS EY022936Swiss MS SocietySwiss National Science Foundation PP00P3_152928
6 · The paper itself

Abstract

objectiveNeuromyelitis optica (NMO) is an autoimmune disease of the central nervous system, which resembles multiple sclerosis (MS). NMO differs from MS, however, in the distribution and histology of neuroinflammatory lesions and shows a more aggressive clinical course. Moreover, the majority of NMO patients carry immunoglobulin G autoantibodies against aquaporin-4 (AQP4), an astrocytic water channel. Antibodies against AQP4 can damage astrocytes by complement, but NMO histopathology also shows demyelination, and - importantly-axon injury, which may determine permanent deficits following NMO relapses. The dynamics of astrocyte injury in NMO and the mechanisms by which toxicity spreads to axons are not understood.

methodsHere, we establish in vivo imaging of the spinal cord, one of the main sites of NMO pathology, as a powerful tool to study the formation of experimental NMO-related lesions caused by human AQP4 antibodies in mice.

resultsWe found that human AQP4 antibodies caused acute astrocyte depletion with initial oligodendrocyte survival. Within 2 hours of antibody application, we observed secondary axon injury in the form of progressive swellings. Astrocyte toxicity and axon damage were dependent on AQP4 antibody titer and complement, specifically C1q.

interpretationIn vivo imaging of the spinal cord reveals the swift development of NMO-related acute axon injury after AQP4 antibody-mediated astrocyte depletion. This approach will be useful in studying the mechanisms underlying the spread of NMO pathology beyond astrocytes, as well as in evaluating potential neuroprotective interventions. Ann Neurol 2016;79:794-805.

Identifiers

PMID26946517
PMCPMC5021140
OpenAlexW2289107316

What OpenQuestion holds

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LicenceCC BY-NC-ND
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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.