Microchamber (VIDEO) University of California - Berkeley This video is under embargo. Please login to access this video. To view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 video Caption Researchers at UC Berkeley and Gladstone Institutes have shown that human induced pluripotent stem cells can differentiate and self-organize into cardiac microchambers when spatially confined. The center (red) shows heart muscle cells while the perimeter (green ring) shows a type of connective tissue that attaches to the surface and holds the microchamber to the culture dish. The cardiac microchambers can be used to study the toxicity of drugs that affect early human heart development. Credit Zhen Ma, UC Berkeley Usage Restrictions Editorial use only 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.