Neural Progenitor and Astrocytes (image) University of California - San Diego Caption Human neural progenitor cells isolated under selective culture conditions from the developing human brain and directed through lineage differentiation. Neural progenitor cells are stained green; differentiated astrocytes are orange. Nuclei are stained blue. Credit Image courtesy of the National Institute of Neurological Disorders and Stroke. Usage Restrictions Use attributed credit. 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.