Evidence map›Paper›PMID 25318670›Full record

ArticleMolecular biology of the cell2014

Neuromuscular synapse integrity requires linkage of acetylcholine receptors to postsynaptic intermediate filament networks via rapsyn-plectin 1f complexes.

Eva Mihailovska, Marianne Raith, Rocio G Valencia, Irmgard Fischer, Mumna Al Banchaabouchi, Ruth Herbst, Gerhard Wiche

Open access · greenAbstract read
In one paragraph

Article in Molecular biology of the cell, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed
1.8field-weighted citation impact, top 16% 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

22 citing papers in PubMed, 41 citations in OpenAlex.

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  18. [Research advances in limb-girdle muscular dystrophy type 2Q].Zhongguo dang dai er ke za zhi = Chinese journal of contemporary pediatrics · 2019
    Review
  19. Glu20Ter Variant inFrontiers in neurology · 2017
    Article
  20. 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

7 authors at 3 institutions in 1 country.

Eva MihailovskaDepartment of Biochemistry and Cell Biology, Max F. Perutz Laboratories, University of Vienna, 1030 Vienna, Austria.
Marianne RaithDepartment of Biochemistry and Cell Biology, Max F. Perutz Laboratories, University of Vienna, 1030 Vienna, Austria.
Rocio G ValenciaDepartment of Biochemistry and Cell Biology, Max F. Perutz Laboratories, University of Vienna, 1030 Vienna, Austria.
Irmgard FischerDepartment of Biochemistry and Cell Biology, Max F. Perutz Laboratories, University of Vienna, 1030 Vienna, Austria.
Mumna Al BanchaabouchiPreclinical Phenotyping Facility, Campus Science Support Facilities, 1030 Vienna, Austria.
Ruth HerbstCenter for Brain Research and Institute of Immunology, Medical University of Vienna, 1030 Vienna, Austria.
Gerhard WicheDepartment of Biochemistry and Cell Biology, Max F. Perutz Laboratories, University of Vienna, 1030 Vienna, Austria gerhard.wiche@univie.ac.at.
University of Vienna · ATCampus Science Support Facilities · ATMedical University of Vienna · AT

Funding

Austrian Science Fund FWF I 1207Austrian Science Fund FWF P 21667Austrian Science Fund FWF P 23729
6 · The paper itself

Abstract

Mutations in the cytolinker protein plectin lead to grossly distorted morphology of neuromuscular junctions (NMJs) in patients suffering from epidermolysis bullosa simplex (EBS)-muscular dystrophy (MS) with myasthenic syndrome (MyS). Here we investigated whether plectin contributes to the structural integrity of NMJs by linking them to the postsynaptic intermediate filament (IF) network. Live imaging of acetylcholine receptors (AChRs) in cultured myotubes differentiated ex vivo from immortalized plectin-deficient myoblasts revealed them to be highly mobile and unable to coalesce into stable clusters, in contrast to wild-type cells. We found plectin isoform 1f (P1f) to bridge AChRs and IFs via direct interaction with the AChR-scaffolding protein rapsyn in an isoform-specific manner; forced expression of P1f in plectin-deficient cells rescued both compromised AChR clustering and IF network anchoring. In conditional plectin knockout mice with gene disruption in muscle precursor/satellite cells (Pax7-Cre/cKO), uncoupling of AChRs from IFs was shown to lead to loss of postsynaptic membrane infoldings and disorganization of the NMJ microenvironment, including its invasion by microtubules. In their phenotypic behavior, mutant mice closely mimicked EBS-MD-MyS patients, including impaired body balance, severe muscle weakness, and reduced life span. Our study demonstrates that linkage to desmin IF networks via plectin is crucial for formation and maintenance of AChR clusters, postsynaptic NMJ organization, and body locomotion.

Indexed as

AnimalsFemaleHEK293 CellsHumansIntermediate FilamentsMaleMice, KnockoutMotor ActivityMuscle Fibers, SkeletalMuscle ProteinsMuscle StrengthNeuromuscular JunctionPlectinProtein Interaction Domains and MotifsProtein IsoformsProtein TransportMuscle Proteinsperipheral membrane protein 43KPlec protein, mousePlectinProtein Isoforms

Identifiers

PMID25318670
PMCPMC4263455
OpenAlexW2151611527

What OpenQuestion holds

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LicenceCC BY-NC-SA
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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.