Evidence map›Paper›PMID 21890694›Full record

ArticleAmerican journal of physiology. Heart and circulatory physiology2011

High purity human-induced pluripotent stem cell-derived cardiomyocytes: electrophysiological properties of action potentials and ionic currents.

Junyi Ma, Liang Guo, Steve J Fiene, Blake D Anson, James A Thomson, Timothy J Kamp, Kyle L Kolaja, Bradley J Swanson, Craig T January

Open access · greenAbstract read
In one paragraph

Article in American journal of physiology. Heart and circulatory physiology, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 410 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
410citing papers in PubMed, 2 pooled it
14.5field-weighted citation impact, top 1% 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

410 citing papers in PubMed, 2 syntheses or guidelines pooled it, 797 citations in OpenAlex.

  1. Engineering the maturation of stem cell-derived cardiomyocytes.Frontiers in bioengineering and biotechnology · 2023
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  18. mBio · 2026
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350 more citing papers are in PubMed but not listed here.

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

9 authors at 3 institutions in 1 country.

Junyi MaCellular Dynamics International, Madison, Wisconsin, USA.
Liang Guo
Steve J Fiene
Blake D Anson
James A Thomson
Timothy J Kamp
Kyle L Kolaja
Bradley J Swanson
Craig T January
Cellular Dynamics International (United States) · USUniversity of Wisconsin–Madison · USEnergy Center of Wisconsin · US

Funding

Midwest Progenitor Cell ConsortiumU01HL099773 · NHLBI · UNIVERSITY OF WISCONSIN-MADISON · PI THOMSON, JAMES ALEXANDER · 2009 to 2015
$7.8M
Functional GWAS for LVH using iPS-derived Cardiomyocytes: The HyperGEN ciPS StudU01HL107437 · NHLBI · MEDICAL COLLEGE OF WISCONSIN · PI BROECKEL, ULRICH, BURKE, THOMAS J · 2011 to 2015
$6.1M
NHLBI NIH HHS U01 HL099773NHLBI NIH HHS U01 HL107437
6 · The paper itself

Abstract

Human-induced pluripotent stem cells (hiPSCs) can differentiate into functional cardiomyocytes; however, the electrophysiological properties of hiPSC-derived cardiomyocytes have yet to be fully characterized. We performed detailed electrophysiological characterization of highly pure hiPSC-derived cardiomyocytes. Action potentials (APs) were recorded from spontaneously beating cardiomyocytes using a perforated patch method and had atrial-, nodal-, and ventricular-like properties. Ventricular-like APs were more common and had maximum diastolic potentials close to those of human cardiac myocytes, AP durations were within the range of the normal human electrocardiographic QT interval, and APs showed expected sensitivity to multiple drugs (tetrodotoxin, nifedipine, and E4031). Early afterdepolarizations (EADs) were induced with E4031 and were bradycardia dependent, and EAD peak voltage varied inversely with the EAD take-off potential. Gating properties of seven ionic currents were studied including sodium (I(Na)), L-type calcium (I(Ca)), hyperpolarization-activated pacemaker (I(f)), transient outward potassium (I(to)), inward rectifier potassium (I(K1)), and the rapidly and slowly activating components of delayed rectifier potassium (I(Kr) and I(Ks), respectively) current. The high purity and large cell numbers also enabled automated patch-clamp analysis. We conclude that these hiPSC-derived cardiomyocytes have ionic currents and channel gating properties underlying their APs and EADs that are quantitatively similar to those reported for human cardiac myocytes. These hiPSC-derived cardiomyocytes have the added advantage that they can be used in high-throughput assays, and they have the potential to impact multiple areas of cardiovascular research and therapeutic applications.

Indexed as

Cell DifferentiationExcitation Contraction CouplingAction PotentialsCalciumCalcium Channels, L-TypeCell LineFlow CytometryFluorescent Antibody TechniqueHeart RateHumansInduced Pluripotent Stem CellsIon Channel GatingIon TransportKineticsMembrane Transport ModulatorsMyocytes, CardiacCalciumCalcium Channels, L-TypeMembrane Transport ModulatorsPotassiumPotassium ChannelsSodiumSodium Channels

Identifiers

PMID21890694
PMCPMC4116414
OpenAlexW2124929662

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.