期刊
JOVE-JOURNAL OF VISUALIZED EXPERIMENTS
卷 -, 期 86, 页码 -出版社
JOURNAL OF VISUALIZED EXPERIMENTS
DOI: 10.3791/51116
关键词
Medicine; Issue 86; cardiology; cardiac cells; electrophysiology; excitation-contraction coupling; action potential; calcium; myocardium; hypertrophic cardiomyopathy; cardiac patients; cardiac disease
资金
- E.U. (STREP) [241577]
- Menarini International Operations Luxembourg
- Telethon [GGP07133]
- Gilead Sciences
Cardiomyocytes from diseased hearts are subjected to complex remodeling processes involving changes in cell structure, excitation contraction coupling and membrane ion currents. Those changes are likely to be responsible for the increased arrhythmogenic risk and the contractile alterations leading to systolic and diastolic dysfunction in cardiac patients. However, most information on the alterations of myocyte function in cardiac diseases has come from animal models. Here we describe and validate a protocol to isolate viable myocytes from small surgical samples of ventricular myocardium from patients undergoing cardiac surgery operations. The protocol is described in detail. Electrophysiological and intracellular calcium measurements are reported to demonstrate the feasibility of a number of single cell measurements in human ventricular cardiomyocytes obtained with this method. The protocol reported here can be useful for future investigations of the cellular and molecular basis of functional alterations of the human heart in the presence of different cardiac diseases. Further, this method can be used to identify novel therapeutic targets at cellular level and to test the effectiveness of new compounds on human cardiomyocytes, with direct translational value.
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