Smooth Muscle Cells (IMAGE) Morgridge Institute for Research Caption This image depicts live imaging of MYH11-Tom expression in smooth muscle cells differentiated from human pluripotent stem cells using RepSox. MYH11 is a specific protein expressed by smooth muscle cells and is a marker for the mature contractile phenotype. Credit Thomson Lab, Morgridge Institute for Research Usage Restrictions This image may only be used with appropriate credit. License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.