Figure 1

Characteristics of action potentials in human embryonic stem cell-derived cardiomyocytes. (A-D) Action potentials and percentage distribution of ventricular, atrial and pacemaker cardiomyocytes derived from HES2 (A,B) and H1 (C,D) human embryonic stem cells (hESCs). (E) Summary of differences in action potential properties between adult cardiomyocytes (CM) and hESC-CMs. (Adapted from Moore et al. [19]).