Muscle stem cells (image) Max Delbrück Center for Molecular Medicine in the Helmholtz Association Share Print E-Mail Caption The confocal microscope image shows the patient's primary muscle stem cells, which have continued to proliferate after repair of the mutation using "base editing". Credit Spuler Lab, ECRC Usage Restrictions Please only use when reporting about the paper. Share Print E-Mail 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.