Atomic force mechanobiology of pluripotent stem cell-derived cardiomyocytes.

Atomic force mechanobiology of pluripotent stem cell-derived cardiomyocytes.
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DOI:
10.1371/journal.pone.0037559
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发表时间:
2012
期刊:
影响因子:
3.7
通讯作者:
Butte MJ
Butte MJ
中科院分区:
综合性期刊3区
文献类型:
--
作者:
Liu J;Sun N;Bruce MA;Wu JC;Butte MJ

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We describe a method using atomic force microscopy (AFM) to quantify the mechanobiological properties of pluripotent, stem cell-derived cardiomyocytes, including contraction force, rate, duration, and cellular elasticity. We measured beats from cardiomyocytes derived from induced pluripotent stem cells of healthy subjects and those with dilated cardiomyopathy, and from embryonic stem cell lines. We found that our AFM method could quantitate beat forces of single cells and clusters of cardiomyocytes. We demonstrate the dose-responsive, inotropic effect of norepinephrine and beta-adrenergic blockade of metoprolol. Cardiomyocytes derived from subjects with dilated cardiomyopathy showed decreased force and decreased cellular elasticity compared to controls. This AFM-based method can serve as a screening tool for the development of cardiac-active pharmacological agents, or as a platform for studying cardiomyocyte biology.
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