Mar 24, 2020

Adaptable pulsatile flow generated by quantitative imaging of stem-cell derived cardiomyocytes for disease modeling

BioRxiv : the Preprint Server for Biology
T. QianMelissa C Skala


Endothelial cells (EC) in vivo are continuously exposed to a mechanical microenvironment from blood flow, and fluidic shear stress plays an important role in EC behavior. New approaches to generate physiologically and pathologically relevant pulsatile flows are needed to understand EC behavior under different shear stress regimes. Here, we demonstrate an adaptable pump (Adapt-Pump) platform for generating pulsatile flows via quantitative imaging of human pluripotent stem cell-derived cardiac spheroids (CS). Pulsatile flows generated from the Adapt-Pump system can recapitulate unique CS contraction characteristics, accurately model responses to clinically relevant drugs, and simulate CS contraction changes in response to fluidic mechanical stimulation. We discovered that ECs differentiated under a long QT syndrome derived pathological pulsatile flow exhibit abnormal EC monolayer organization. This Adapt-Pump platform provides a powerful tool for modeling the cardiovascular system and improving our understanding of EC behavior under different mechanical microenvironments.

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Mentioned in this Paper

Genome-Wide Association Study
Deoxyribonuclease I
Low Density Lipoprotein Cholesterol Measurement
Weighing Patient
Down Syndrome

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