Real-Time Measurements of Calcium and Contractility Parameters in Human Induced Pluripotent Stem Cell-Derived Cardiomyocytes

Rafeeh Dinani; Emmy Manders; Michiel Helmes; Lili Wang; Bjorn C. Knollmann; Diederik W. D. Kuster; Jolanda van der Velden

doi:10.3791/65326

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Real-Time Measurements of Calcium and Contractility Parameters in Human Induced Pluripotent Stem Cell-Derived Cardiomyocytes

JoVE Journal
Biology

This content is Free Access.

JoVE Journal Biology

Real-Time Measurements of Calcium and Contractility Parameters in Human Induced Pluripotent Stem Cell-Derived Cardiomyocytes

2,706 Views

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06:42 min

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May 26, 2023

DOI:

10.3791/65326-v

DOI:

10.3791/65326-v

•

06:42 min

May 26, 2023

•

14 Views

Rafeeh Dinani^1,2, Emmy Manders^1,2,3, Michiel Helmes^1,2,3, Lili Wang⁴, Bjorn C. Knollmann⁴, Diederik W. D. Kuster^1,2, Jolanda van der Velden^1,2

¹Division of Physiology, Amsterdam UMC,Vrije University, ²Heart Failure & Arrhythmias,Amsterdam Cardiovascular Sciences, ³CytoCypher BV, ⁴Division of Clinical Pharmacology,Vanderbilt School of Medicine

Transcript

Human induced pluripotent stem cell-derived cardiomyocytes represent a powerful tool for studying mutation-mediated changes in cardiomyocyte function and defining the effects of stressors and drug interventions. There’s a need for a platform in which contractility and calcium handling of human induced pluripotent stem cell-derived cardiomyocytes can be measured in a user-friendly and reproducible manner. This method enables researchers to study contractility of human-induced pluripotent stem cell-derived cardiomyocytes by pixel correlation and measuring intracellular calcium transients simultaneously by loading the cells with calcium-sensitive fluorophore.

By using this platform, it’s possible to perform paired measurements in a well-preserved temperature environment and different plate formats, and to access the data instantly. This method enables the study of cellular pathomechanisms and evaluates the effect of compounds and the functionality of human iPSC-derived cardiomyocytes, that can be helpful in the preclinical drug screening process.

Summary

Here, an established method is described to perform contractility and calcium measurements in human induced pluripotent stem cell-derived cardiomyocytes using an optics-based platform. This platform enables researchers to study the effect of mutations and the response to various stimuli in a rapid and reproducible manner.