Evidence map›Paper›PMID 41680819›Full record

ArticleSkeletal muscle2026

Unveiling FLNC variants: iPSC-derived myogenic cells as a model to study disease mechanisms.

Nassam M Daya, Anne Schänzer, Andreas Hentschel, Marie-Cecile Kienitz, Dominik Sellung, Nicolina Suedkamp, Karsten Krause, Jaqueline C Kinold, Leon Volke, Anja Schreiner and 9 more

Abstract read
In one paragraph

Article in Skeletal muscle, 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
–field-weighted citation impact
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

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

19 authors.

Nassam M DayaRuhr University Bochum, BG University Hospital Bergmannsheil, Department of Neurology, Bochum, Germany, Ruhr-University Bochum, Bochum, Germany. nassam.daya@rub.de.
Anne SchänzerInstitute of Neuropathology, Justus-Liebig-University Giessen, DE, Justus Liebig University, Giessen, Germany.
Andreas HentschelLeibniz-Institut Für Analytische Wissenschaften-ISAS E.V., Dortmund, 44139, Germany.
Marie-Cecile KienitzDepartment of Cellular and Translational Physiology, Medical Faculty, Ruhr-University Bochum, Bochum, Germany.
Dominik SellungRuhr University Bochum, BG University Hospital Bergmannsheil, Department of Neurology, Bochum, Germany, Ruhr-University Bochum, Bochum, Germany.
Nicolina SuedkampRuhr University Bochum, BG University Hospital Bergmannsheil, Department of Neurology, Bochum, Germany, Ruhr-University Bochum, Bochum, Germany.
Karsten KrauseRuhr University Bochum, BG University Hospital Bergmannsheil, Department of Neurology, Bochum, Germany, Ruhr-University Bochum, Bochum, Germany.
Jaqueline C KinoldRuhr University Bochum, BG University Hospital Bergmannsheil, Department of Neurology, Bochum, Germany, Ruhr-University Bochum, Bochum, Germany.
Leon VolkeRuhr University Bochum, BG University Hospital Bergmannsheil, Department of Neurology, Bochum, Germany, Ruhr-University Bochum, Bochum, Germany.
Anja SchreinerRuhr University Bochum, BG University Hospital Bergmannsheil, Department of Neurology, Bochum, Germany, Ruhr-University Bochum, Bochum, Germany.
Hanna SchlierbachInstitute of Neuropathology, Justus-Liebig-University Giessen, DE, Justus Liebig University, Giessen, Germany.
Christopher NelkeRuhr University Bochum, BG University Hospital Bergmannsheil, Department of Neurology, Bochum, Germany, Ruhr-University Bochum, Bochum, Germany.
Felix KleefeldRuhr University Bochum, BG University Hospital Bergmannsheil, Department of Neurology, Bochum, Germany, Ruhr-University Bochum, Bochum, Germany.
Anne-Katrin GuettschesRuhr University Bochum, BG University Hospital Bergmannsheil, Department of Neurology, Bochum, Germany, Ruhr-University Bochum, Bochum, Germany.
Holm ZaehresDepartment of Anatomy and Molecular Embryology, Institute of Anatomy, Ruhr-University Bochum, Bochum, 44801, Germany.
Tobias RuckRuhr University Bochum, BG University Hospital Bergmannsheil, Department of Neurology, Bochum, Germany, Ruhr-University Bochum, Bochum, Germany.
Lampros MavrommatisRuhr University Bochum, BG University Hospital Bergmannsheil, Department of Neurology, Bochum, Germany, Ruhr-University Bochum, Bochum, Germany.
Andreas RoosRuhr University Bochum, BG University Hospital Bergmannsheil, Department of Neurology, Bochum, Germany, Ruhr-University Bochum, Bochum, Germany.
Matthias VorgerdRuhr University Bochum, BG University Hospital Bergmannsheil, Department of Neurology, Bochum, Germany, Ruhr-University Bochum, Bochum, Germany. matthias.vorgerd@rub.de.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundFilaminopathies, caused by pathogenic FLNC variants, are rare neuromuscular disorders characterized by protein aggregation, z-disk pathology and lead to progressive muscle weakness and/or cardiomyopathies.

methodsTo address the lack of existing filaminopathy models in skeletal muscle, we developed a patient-specific cellular platform using induced pluripotent stem cells (iPSCs) harboring two truncating filamin C (FLNc) variants (p.Q1662X, p.Y2704X). Employing a developmental human skeletal muscle organoid hSMO model, we enrich for myogenic progenitor cells that are further differentiated into functional myotubes through 2D and 3D approaches (myotubes and musculoids).

resultsThe 2D myotubes exhibited poor sarcomeric organization and hallmarks of filaminopathies, including protein aggregation and proteostatic dysfunction, marked by elevated aggresome formation and an increased basal autophagic flux. The 3D musculoids revealed ultrastructural abnormalities and enabled the identification of novel disease-associated proteins involved in ER stress and protein folding (e.g. DNAJC10) through proteomic analysis. Proteomic findings were additionally validated in 2D cultures and in corresponding patient-derived muscle biopsies enhancing the model's translational value.

conclusionsOur model is suitable to monitor aspects of filaminopathies' pathogenesis and to investigate possible therapeutic interventions with quantitative readouts.

Indexed as

FilaminsInduced Pluripotent Stem CellsMuscle Fibers, SkeletalCell DifferentiationHumansMuscle, SkeletalMuscular DystrophiesFilaminsFLNC protein, humanDisease modelingFilaminopathiesiPSCOrganoid

Identifiers

PMID41680819
PMCPMC13063712

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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.