Evidence map›Paper›PMID 35063130›Full record

ArticleStem cell reports2022

Modeling reduced contractility and impaired desmosome assembly due to plakophilin-2 deficiency using isogenic iPS cell-derived cardiomyocytes.

Hiroyuki Inoue, Satoki Nakamura, Shuichiro Higo, Mikio Shiba, Yasuaki Kohama, Takumi Kondo, Satoshi Kameda, Tomoka Tabata, Shota Okuno, Yoshihiko Ikeda and 10 more

Open access · goldAbstract read
In one paragraph

Article in Stem cell reports, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed
4.1field-weighted citation impact, top 5% 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

21 citing papers in PubMed, 27 citations in OpenAlex.

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  2. RNA-Based Therapies for Treating Monogenic Cardiomyopathies.The Canadian journal of cardiology · 2026
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  3. Disease models and AAV therapies ofMolecular therapy. Advances · 2026
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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

20 authors at 4 institutions in 1 country.

Hiroyuki InoueDepartment of Cardiovascular Medicine, Osaka University Graduate School of Medicine, Suita, Osaka 565-0871, Japan.
Satoki NakamuraOsaka Police Hospital, Osaka 543-0035, Japan.
Shuichiro HigoDepartment of Medical Therapeutics for Heart Failure, Osaka University Graduate School of Medicine, Suita, Osaka 565-0871, Japan. Electronic address: higo-s@cardiology.med.osaka-u.ac.jp.
Mikio ShibaDepartment of Cardiovascular Medicine, Osaka University Graduate School of Medicine, Suita, Osaka 565-0871, Japan.
Yasuaki KohamaCardiovascular Division, National Hospital Organization, Osaka-Minami Medical Center, Kawachinagano, Osaka 586-8512, Japan.
Takumi KondoDepartment of Cardiovascular Medicine, Osaka University Graduate School of Medicine, Suita, Osaka 565-0871, Japan.
Satoshi KamedaDepartment of Cardiovascular Medicine, Osaka University Graduate School of Medicine, Suita, Osaka 565-0871, Japan.
Tomoka TabataDepartment of Cardiovascular Medicine, Osaka University Graduate School of Medicine, Suita, Osaka 565-0871, Japan.
Shota OkunoDepartment of Cardiovascular Medicine, Osaka University Graduate School of Medicine, Suita, Osaka 565-0871, Japan.
Yoshihiko IkedaDepartment of Pathology, National Cerebral and Cardiovascular Center, Suita, Osaka 564-8565, Japan.
Junjun LiDepartment of Cardiovascular Surgery, Osaka University Graduate School of Medicine, Suita, Osaka 565-0871, Japan; Department of Design for Tissue Regeneration, Osaka University Graduate School of Medicine, Suita, Osaka 565-0871, Japan.
Li LiuDepartment of Cardiovascular Surgery, Osaka University Graduate School of Medicine, Suita, Osaka 565-0871, Japan; Department of Design for Tissue Regeneration, Osaka University Graduate School of Medicine, Suita, Osaka 565-0871, Japan.
Satoru YamazakiDepartment of Molecular Pharmacology, National Cerebral and Cardiovascular Center, Suita, Osaka 564-8565, Japan.
Maki TakedaDepartment of Cardiovascular Surgery, Osaka University Graduate School of Medicine, Suita, Osaka 565-0871, Japan.
Emiko ItoDepartment of Cardiovascular Surgery, Osaka University Graduate School of Medicine, Suita, Osaka 565-0871, Japan.
Seiji TakashimaDepartment of Medical Biochemistry, Osaka University Graduate School of Medicine, Suita, Osaka 565-0871, Japan.
Shigeru MiyagawaDepartment of Cardiovascular Surgery, Osaka University Graduate School of Medicine, Suita, Osaka 565-0871, Japan.
Yoshiki SawaDepartment of Cardiovascular Surgery, Osaka University Graduate School of Medicine, Suita, Osaka 565-0871, Japan.
Shungo HikosoDepartment of Cardiovascular Medicine, Osaka University Graduate School of Medicine, Suita, Osaka 565-0871, Japan.
Yasushi SakataDepartment of Cardiovascular Medicine, Osaka University Graduate School of Medicine, Suita, Osaka 565-0871, Japan.
Osaka University · JPNational Cerebral and Cardiovascular Center · JPOsaka Minami Medical Center · JPOsaka Police Hospital · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Loss-of-function mutations in PKP2, which encodes plakophilin-2, cause arrhythmogenic cardiomyopathy (AC). Restoration of deficient molecules can serve as upstream therapy, thereby requiring a human model that recapitulates disease pathology and provides distinct readouts in phenotypic analysis for proof of concept for gene replacement therapy. Here, we generated isogenic induced pluripotent stem cell-derived cardiomyocytes (iPSC-CMs) with precisely adjusted expression of plakophilin-2 from a patient with AC carrying a heterozygous frameshift PKP2 mutation. After monolayer differentiation, plakophilin-2 deficiency led to reduced contractility, disrupted intercalated disc structures, and impaired desmosome assembly in iPSC-CMs. Allele-specific fluorescent labeling of endogenous DSG2 encoding desmoglein-2 in the generated isogenic lines enabled real-time desmosome-imaging under an adjusted dose of plakophilin-2. Adeno-associated virus-mediated gene replacement of PKP2 recovered contractility and restored desmosome assembly, which was sequentially captured by desmosome-imaging in plakophilin-2-deficient iPSC-CMs. Our isogenic set of iPSC-CMs recapitulates AC pathology and provides a rapid and convenient cellular platform for therapeutic development.

Indexed as

Arrhythmias, CardiacCell DifferentiationCRISPR-Cas SystemsDesmosomesFemaleGene EditingGenetic VectorsHeterozygoteHumansInduced Pluripotent Stem CellsMaleModels, BiologicalMyocardial ContractionMyocytes, CardiacPedigreePlakophilinsPlakophilinsadeno-associated virusarrhythmogenic cardiomyopathydesmosomegenome editinghuman induced pluripotent stem cell-derived cardiomyocytesplakophilin-2

Identifiers

PMID35063130
PMCPMC8828557
OpenAlexW4206450958

What OpenQuestion holds

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LicenceCC BY
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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.