Evidence map›Paper›PMID 33176122›Full record

ArticleStem cell reports2020

Isogenic Sets of hiPSC-CMs Harboring Distinct KCNH2 Mutations Differ Functionally and in Susceptibility to Drug-Induced Arrhythmias.

Karina O Brandão, Lettine van den Brink, Duncan C Miller, Catarina Grandela, Berend J van Meer, Mervyn P H Mol, Tessa de Korte, Leon G J Tertoolen, Christine L Mummery, Luca Sala and 2 more

Open access · goldAbstract read
In one paragraph

Article in Stem cell reports, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers.

0numbers the graph read from it
0cells of the map it votes in
28citing papers in PubMed
3.7field-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

28 citing papers in PubMed, 38 citations in OpenAlex.

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  14. Injection of IFrontiers in physiology · 2023
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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

12 authors at 3 institutions in 2 countries.

Karina O BrandãoDepartment of Anatomy and Embryology, Leiden University Medical Center, 2300RC Leiden, The Netherlands.
Lettine van den BrinkDepartment of Anatomy and Embryology, Leiden University Medical Center, 2300RC Leiden, The Netherlands.
Duncan C MillerDepartment of Anatomy and Embryology, Leiden University Medical Center, 2300RC Leiden, The Netherlands.
Catarina GrandelaDepartment of Anatomy and Embryology, Leiden University Medical Center, 2300RC Leiden, The Netherlands.
Berend J van MeerDepartment of Anatomy and Embryology, Leiden University Medical Center, 2300RC Leiden, The Netherlands.
Mervyn P H MolDepartment of Anatomy and Embryology, Leiden University Medical Center, 2300RC Leiden, The Netherlands.
Tessa de KorteDepartment of Anatomy and Embryology, Leiden University Medical Center, 2300RC Leiden, The Netherlands.
Leon G J TertoolenDepartment of Anatomy and Embryology, Leiden University Medical Center, 2300RC Leiden, The Netherlands.
Christine L MummeryDepartment of Anatomy and Embryology, Leiden University Medical Center, 2300RC Leiden, The Netherlands.
Luca SalaIstituto Auxologico Italiano, IRCCS, Laboratory of Cardiovascular Genetics, 20095 Milan, Italy.
Arie O VerkerkDepartment of Medical Biology, Amsterdam UMC, University of Amsterdam, 1105AZ Amsterdam, The Netherlands; Department of Experimental Cardiology, Amsterdam UMC, University of Amsterdam, 1105AZ Amsterdam, The Netherlands.
Richard P DavisDepartment of Anatomy and Embryology, Leiden University Medical Center, 2300RC Leiden, The Netherlands. Electronic address: r.p.davis@lumc.nl.
Leiden University Medical Center · NLAmsterdam University Medical Centers · NLIstituti di Ricovero e Cura a Carattere Scientifico · IT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Mutations in KCNH2 can lead to long QT syndrome type 2. Variable disease manifestation observed with this channelopathy is associated with the location and type of mutation within the protein, complicating efforts to predict patient risk. Here, we demonstrated phenotypic differences in cardiomyocytes derived from isogenic human induced pluripotent stem cells (hiPSC-CMs) genetically edited to harbor mutations either within the pore or tail region of the ion channel. Electrophysiological analysis confirmed that the mutations prolonged repolarization of the hiPSC-CMs, with differences between the mutations evident in monolayer cultures. Blocking the hERG channel revealed that the pore-loop mutation conferred greater susceptibility to arrhythmic events. These findings showed that subtle phenotypic differences related to KCNH2 mutations could be captured by hiPSC-CMs under genetically matched conditions. Moreover, the results support hiPSC-CMs as strong candidates for evaluating the underlying severity of individual KCNH2 mutations in humans, which could facilitate patient risk stratification.

Indexed as

Arrhythmias, CardiacCell LineElectrophysiologyERG1 Potassium ChannelGene EditingGenetic Predisposition to DiseaseHumansInduced Pluripotent Stem CellsLong QT SyndromeModels, BiologicalMutationMyocytes, CardiacPatch-Clamp TechniquesPiperidinesPyridinesE 4031ERG1 Potassium ChannelKCNH2 protein, humanPiperidinesPyridinesarrhythmiadisease modelingelectrophysiologygenome editinginduced pluripotent stem cellsisogeniclong QT syndrome 2risk stratification

Identifiers

PMID33176122
PMCPMC7664051
OpenAlexW3098325892

What OpenQuestion holds

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LicenceCC BY
Read underepoch 390

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.