HeLa Composite Image (IMAGE) University of Washington Caption This is a composite image of HeLa cells stained sequentially with antibodies to five different proteins. Credit Xiaohu Gao Usage Restrictions Must include 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.