(IMAGE) Martin-Luther-Universität Halle-Wittenberg Caption Lead author Sven Hagemann is handling cell cultures. Credit University Medicine Halle Usage Restrictions Use with appropriate credit for covering the research. License Original 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.