Evidence map›Paper›PMID 42760317›Full record

ArticleCommunications biology2026

Spatial proteomics identifies FXYD6 as a dual-site protein of neuromuscular junction in the diaphragm.

Nitin Eapen, Luisa Schmidt, Michael Saynisch, Jan-Wilm Lackmann, Christian Hoegsbjerg, Abigail L Mackey, Manuel Koch, Bent Brachvogel, Philipp Antczak, Marcus Krüger

Abstract read
In one paragraph

Article in Communications biology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it
0cells of the map it votes in
0citing papers in PubMed
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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

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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

0 citing papers in PubMed.

No citing paper in PubMed yet.

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.

Nitin Eapen *Institute for Genetics, Cologne Excellence Cluster on Cellular Stress Responses in Aging-Associated Diseases (CECAD), Cologne, Germany.ORCID 0000-0002-7117-4660
Luisa Schmidt *Novo Nordisk Foundation Center for Protein Research, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark.ORCID 0000-0002-9805-4941
Michael SaynischInstitute for Genetics, Cologne Excellence Cluster on Cellular Stress Responses in Aging-Associated Diseases (CECAD), Cologne, Germany.ORCID 0000-0001-8785-4081
Jan-Wilm LackmannInstitute for Genetics, Cologne Excellence Cluster on Cellular Stress Responses in Aging-Associated Diseases (CECAD), Cologne, Germany.
Christian HoegsbjergDepartment of Orthopaedic Surgery, Institute of Sports Medicine Copenhagen, Copenhagen University Hospital - Bispebjerg and Frederiksberg, Copenhagen, Denmark.ORCID 0000-0003-3212-5388
Abigail L MackeyDepartment of Orthopaedic Surgery, Institute of Sports Medicine Copenhagen, Copenhagen University Hospital - Bispebjerg and Frederiksberg, Copenhagen, Denmark.ORCID 0000-0002-2017-4580
Manuel KochInstitute for Dental Research and Oral Musculoskeletal Biology, Faculty of Medicine and University Hospital Cologne, University of Cologne, Cologne, Germany.ORCID 0000-0002-2962-7814
Bent BrachvogelInstitute for Genetics, Cologne Excellence Cluster on Cellular Stress Responses in Aging-Associated Diseases (CECAD), Cologne, Germany.
Philipp AntczakCenter for Molecular Medicine (CMMC), University of Cologne, Cologne, Germany.ORCID 0000-0001-9600-7757
Marcus KrügerInstitute for Genetics, Cologne Excellence Cluster on Cellular Stress Responses in Aging-Associated Diseases (CECAD), Cologne, Germany. marcus.krueger@uni-koeln.de.ORCID 0000-0002-5846-6941

Funding

Deutsche Forschungsgemeinschaft (German Research Foundation) (CECAD) EXC 299/2Deutsche Forschungsgemeinschaft (German Research Foundation) GRK 2550 (DFG 411422114)Deutsche Forschungsgemeinschaft (German Research Foundation) INST 216/1020-1Deutsche Forschungsgemeinschaft (German Research Foundation) INST 216/1163-1Lundbeckfonden (Lundbeck Foundation) R485-2025-192
6 · The paper itself

Abstract

Morphological studies of the diaphragm have provided a detailed view of its architecture, which consists of parallel skeletal muscle fibers and a central ring of neuronal innervation that includes neuromuscular junction (NMJ) units. NMJs are disease-vulnerable synapses; thus, analysis of the NMJ is essential to understand its function in both healthy and disease-related conditions. The diaphragm was analyzed by spatial proteomics and 115 proteins were enriched at the NMJ. Comparison of the protein signatures of the NMJ and myotendinous junction (MTJ) revealed 31 shared proteins, suggesting partially conserved structures between these junctions. Key mediators of synaptic transmission and extracellular matrix organization were observed among the NMJ-enriched components, which indicates the molecular complexity and regulatory potential of the NMJ. A focused study of the uncharacterized NMJ protein FXYD6 demonstrate enhanced FXYD6 expression in type IIa fibers of the diaphragm, which exhibit a unique balance of oxidative and glycolytic capacity. FXYD6 interacts with Na⁺/K⁺-ATPase subunits in the diaphragm, which supports the function of FXYD6 in the ionic homeostasis required for continuous, fatigue-resistant contraction. Overall, the dataset provides a comprehensive molecular atlas of the NMJ in the diaphragm and opens new opportunities to dissect the synaptic mechanisms underlying respiratory function and neuromuscular diseases.

Indexed as

DiaphragmNeuromuscular JunctionProteomicsAnimalsMiceSodium-Potassium-Exchanging ATPaseSodium-Potassium-Exchanging ATPase

Identifiers

PMID42760317
PMCPMC13588806

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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.