Evidence map›Paper›PMID 25172899›Full record

ArticleAmerican journal of physiology. Heart and circulatory physiology2014

A near-infrared fluorescent voltage-sensitive dye allows for moderate-throughput electrophysiological analyses of human induced pluripotent stem cell-derived cardiomyocytes.

Angelica Lopez-Izquierdo, Mark Warren, Michael Riedel, Scott Cho, Shuping Lai, Robert L Lux, Kenneth W Spitzer, Ivor J Benjamin, Martin Tristani-Firouzi, Chuanchau J Jou

Abstract read
In one paragraph

Article in American journal of physiology. Heart and circulatory physiology, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing 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

17 citing papers in PubMed.

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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

10 authors.

Angelica Lopez-IzquierdoNora Eccles Harrison Cardiovascular Research and Training Institute, University of Utah School of Medicine, Salt Lake City, Utah;
Mark WarrenNora Eccles Harrison Cardiovascular Research and Training Institute, University of Utah School of Medicine, Salt Lake City, Utah;
Michael RiedelCardiovascular Center, Medical College of Wisconsin, Milwaukee, Wisconsin; and.
Scott ChoNora Eccles Harrison Cardiovascular Research and Training Institute, University of Utah School of Medicine, Salt Lake City, Utah;
Shuping LaiCardiovascular Center, Medical College of Wisconsin, Milwaukee, Wisconsin; and.
Robert L LuxNora Eccles Harrison Cardiovascular Research and Training Institute, University of Utah School of Medicine, Salt Lake City, Utah;
Kenneth W SpitzerNora Eccles Harrison Cardiovascular Research and Training Institute, University of Utah School of Medicine, Salt Lake City, Utah;
Ivor J BenjaminCardiovascular Center, Medical College of Wisconsin, Milwaukee, Wisconsin; and.
Martin Tristani-FirouziNora Eccles Harrison Cardiovascular Research and Training Institute, University of Utah School of Medicine, Salt Lake City, Utah; Division of Pediatric Cardiology, University of Utah School of Medicine, Salt Lake City, Utah mfirouzi@cvrti.utah.edu.
Chuanchau J JouNora Eccles Harrison Cardiovascular Research and Training Institute, University of Utah School of Medicine, Salt Lake City, Utah; Division of Pediatric Cardiology, University of Utah School of Medicine, Salt Lake City, Utah.

Funding

TRAINING IN CARDIOVASCULAR RESEARCHT32HL007576 · NHLBI · UTAH STATE HIGHER EDUCATION SYSTEM--UNIVERSITY OF UTAH · PI Stavros George Drakos, Robin M Shaw · 1985 to 2026
$10.6M
pH REGULATION IN HEART CELLSR37HL042873 · NHLBI · UNIVERSITY OF UTAH · PI SPITZER, KENNETH W · 2003 to 2012
$2.0M
Mechanisms of HSPB2 in Cardiac Metabolism and Ischemic CardioprotectionR01HL074370 · NHLBI · UNIVERSITY OF UTAH · PI BENJAMIN, IVOR JAMES · 2008 to 2011
$1.5M
NCCDPHP CDC HHS 7-DP1-HL-117650-05NHLBI NIH HHS 5-R01-HL-074370-04NHLBI NIH HHS R37-HL-042873-24NHLBI NIH HHS T32 HL007576
6 · The paper itself

Abstract

Human induced pluripotent stem cell-derived cardiomyocyte (iPSC-CM)-based assays are emerging as a promising tool for the in vitro preclinical screening of QT interval-prolonging side effects of drugs in development. A major impediment to the widespread use of human iPSC-CM assays is the low throughput of the currently available electrophysiological tools. To test the precision and applicability of the near-infrared fluorescent voltage-sensitive dye 1-(4-sulfanatobutyl)-4-{β[2-(di-n-butylamino)-6-naphthyl]butadienyl}quinolinium betaine (di-4-ANBDQBS) for moderate-throughput electrophysiological analyses, we compared simultaneous transmembrane voltage and optical action potential (AP) recordings in human iPSC-CM loaded with di-4-ANBDQBS. Optical AP recordings tracked transmembrane voltage with high precision, generating nearly identical values for AP duration (AP durations at 10%, 50%, and 90% repolarization). Human iPSC-CMs tolerated repeated laser exposure, with stable optical AP parameters recorded over a 30-min study period. Optical AP recordings appropriately tracked changes in repolarization induced by pharmacological manipulation. Finally, di-4-ANBDQBS allowed for moderate-throughput analyses, increasing throughput >10-fold over the traditional patch-clamp technique. We conclude that the voltage-sensitive dye di-4-ANBDQBS allows for high-precision optical AP measurements that markedly increase the throughput for electrophysiological characterization of human iPSC-CMs.

Indexed as

Action PotentialsFluorescent Dyes2-NaphthylamineCell DifferentiationHumansInduced Pluripotent Stem CellsInfrared RaysMyocytes, CardiacQuinolinium CompoundsVoltage-Sensitive Dye Imaging1-(4-sulfanatobutyl)-4-(beta-(2-(di-n-butylamino)-6-naphthyl)butadienyl)quinolinium betaine2-NaphthylamineFluorescent DyesQuinolinium Compoundsacquired long QT syndromeoptical action potentialpreclinical drug screeningQT prolongationstem cell model

Identifiers

PMID25172899
PMCPMC4217013

What OpenQuestion holds

Textmetadata
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.