Evidence map›Paper›PMID 19938104›Full record

ArticleAnnals of neurology2009

Intrathecal pathogenic anti-aquaporin-4 antibodies in early neuromyelitis optica.

Jeffrey L Bennett, Chiwah Lam, Sudhakar Reddy Kalluri, Philippe Saikali, Katherine Bautista, Cecily Dupree, Magdalena Glogowska, David Case, Jack P Antel, Gregory P Owens and 4 more

Open access · greenAbstract readComparative Study
In one paragraph

Article in Annals of neurology, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 323 papers.

0numbers the graph read from it
0cells of the map it votes in
323citing papers in PubMed
32.3field-weighted citation impact, top 1% 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

323 citing papers in PubMed, 582 citations in OpenAlex.

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  3. Autoantibodies against Neurologic Antigens in Nonneurologic Autoimmunity.Journal of immunology (Baltimore, Md. : 1950) · 2019
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263 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 4 institutions in 3 countries.

Jeffrey L BennettDepartment of Neurology and Ophthalmology, University of Colorado Denver School of Medicine, Aurora, CO 80045, USA. jeffrey.bennett@ucdenver.edu
Chiwah Lam
Sudhakar Reddy Kalluri
Philippe Saikali
Katherine Bautista
Cecily Dupree
Magdalena Glogowska
David Case
Jack P Antel
Gregory P Owens
Don Gilden
Stefan Nessler
Christine Stadelmann
Bernhard Hemmer
University of Colorado Denver · USKlinikum rechts der Isar · DEMcGill University · CAMontreal Neurological Institute and Hospital · CA

Funding

Varicella Zoster Virus Latency in Human GangliaP01NS032623 · NINDS · UNIVERSITY OF COLORADO DENVER · PI MAHLAINGAM, RAVI · 1993 to 2008
$12.3M
CIHRNINDS NIH HHS NS32623NINDS NIH HHS P01 NS032623
6 · The paper itself

Abstract

objectiveThe serum of most neuromyelitis optica (NMO) patients contains autoantibodies (NMO-IgGs) directed against the aquaporin-4 (AQP4) water channel located on astrocyte foot processes in the perivessel and subpial areas of the brain. Our objectives were to determine the source of central nervous system (CNS) NMO-IgGs and their role in disease pathogenesis.

methodsFluorescence-activated cell sorting and single-cell reverse transcriptase polymerase chain reaction were used to identify overrepresented plasma cell immunoglobulin (Ig) sequences in the cerebrospinal fluid (CSF) of an NMO patient after a first clinical attack. Monoclonal recombinant antibodies (rAbs) were generated from the paired heavy and light chain sequences and tested for target specificity and Fc effector function. The effect of CSF rAbs on CNS immunopathology was investigated by delivering single rAbs to rats with experimental autoimmune encephalomyelitis (EAE).

resultsRepertoire analysis revealed a dynamic, clonally expanded plasma cell population with features of an antigen-targeted response. Using multiple independent assays, 6 of 11 rAbs generated from CSF plasma cell clones specifically bound to AQP4. AQP4-specific rAbs recognized conformational epitopes and mediated both AQP4-directed antibody-dependent cellular cytotoxicity and complement-mediated lysis. When administered to rats with EAE, an AQP4-specific NMO CSF rAb induced NMO immunopathology: perivascular astrocyte depletion, myelinolysis, and complement and Ig deposition.

interpretationMolecular characterization of the CSF plasma cell repertoire in an early NMO patient demonstrates that AQP4-specific Ig is synthesized intrathecally at disease onset and directly contributes to CNS pathology. AQP4 is now the first confirmed antigenic target in human demyelinating disease.

Indexed as

Amino Acid SequenceAnimalsAquaporin 4AutoantibodiesBiomarkersCell LineCells, CulturedFemaleFetusHumansImmunoglobulin GMiceMiddle AgedMolecular Sequence DataNeuromyelitis OpticaRatsAquaporin 4AutoantibodiesBiomarkersImmunoglobulin G

Identifiers

PMID19938104
PMCPMC3180961
OpenAlexW2077427574

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.