Evidence map›Paper›PMID 26276951›Full record

ArticleBritish journal of pharmacology2015

Human induced pluripotent stem cell-derived versus adult cardiomyocytes: an in silico electrophysiological study on effects of ionic current block.

M Paci, J Hyttinen, B Rodriguez, S Severi

Open access · hybridAbstract read
In one paragraph

Article in British journal of pharmacology, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 43 papers.

0numbers the graph read from it
0cells of the map it votes in
43citing papers in PubMed
4.7field-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

43 citing papers in PubMed, 69 citations in OpenAlex.

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  12. Quercetin is a foe in the heart by targeting the hERG potassium channel.Iranian journal of basic medical sciences · 2024
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  16. 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

4 authors at 3 institutions in 3 countries.

M PaciDepartment of Electronics and Communications Engineering, Tampere University of Technology, BioMediTech, Tampere, Finland.ORCID http://orcid.org/0000-0003-0510-1444
J HyttinenDepartment of Electronics and Communications Engineering, Tampere University of Technology, BioMediTech, Tampere, Finland.
B RodriguezDepartment of Computer Science, University of Oxford, Oxford, UK.
S SeveriDepartment of Electrical, Electronic and Information Engineering 'Guglielmo Marconi', University of Bologna, Cesena (FC), Italy.
Tampere University · FILaboratori Guglielmo Marconi (Italy) · ITUniversity of Oxford · GB

Funding

Wellcome Trust 100246
6 · The paper itself

Abstract

background and purposeTwo new technologies are likely to revolutionize cardiac safety and drug development: in vitro experiments on human-induced pluripotent stem cell-derived cardiomyocytes (hiPSC-CMs) and in silico human adult ventricular cardiomyocyte (hAdultV-CM) models. Their combination was recently proposed as a potential replacement for the present hERG-based QT study for pharmacological safety assessments. Here, we systematically compared in silico the effects of selective ionic current block on hiPSC-CM and hAdultV-CM action potentials (APs), to identify similarities/differences and to illustrate the potential of computational models as supportive tools for evaluating new in vitro technologies. EXPERIMENTAL APPROACH: In silico AP models of ventricular-like and atrial-like hiPSC-CMs and hAdultV-CM were used to simulate the main effects of four degrees of block of the main cardiac transmembrane currents. KEY

resultsQualitatively, hiPSC-CM and hAdultV-CM APs showed similar responses to current block, consistent with results from experiments. However, quantitatively, hiPSC-CMs were more sensitive to block of (i) L-type Ca(2+) currents due to the overexpression of the Na(+) /Ca(2+) exchanger (leading to shorter APs) and (ii) the inward rectifier K(+) current due to reduced repolarization reserve (inducing diastolic potential depolarization and repolarization failure). CONCLUSIONS AND IMPLICATIONS: In silico hiPSC-CMs and hAdultV-CMs exhibit a similar response to selective current blocks. However, overall hiPSC-CMs show greater sensitivity to block, which may facilitate in vitro identification of drug-induced effects. Extrapolation of drug effects from hiPSC-CM to hAdultV-CM and pro-arrhythmic risk assessment can be facilitated by in silico predictions using biophysically-based computational models.

Indexed as

Action PotentialsAdultCalcium Channel BlockersCalcium Channels, L-TypeComputer SimulationHumansInduced Pluripotent Stem CellsMyocytes, CardiacCalcium Channel BlockersCalcium Channels, L-Type

Identifiers

PMID26276951
PMCPMC4629192
OpenAlexW2112427107

What OpenQuestion holds

Textmetadata
Read underepoch 390

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.