To view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 video Movie S4. Live engineered hPSC-CM. This cell was imaged by fluorescence microscopy. Actin is labeled with Lifeact. Sarcomeres shorten along the pattern/cell major axis. Contractility of single cardiomyocytes differentiated from pluripotent stem cells depends on physiological shape and substrate stiffness Alexandre J. S. Ribeiro, Yen-Sin Ang, Ji-Dong Fu, Renee N. Rivas, Tamer M. A. Mohamed, Gadryn C. Higgs, Deepak Srivastava, and Beth L. Pruitt PNAS. 2015. 112:12705-12710 DOI: 10.1073/pnas.1508073112 Download Original Video Browse All Videos »