How to Target Astrocytes Among the Neurons (image) Washington University in St. Louis Share Print E-Mail Caption To manipulate the astrocytes in the SCN independently of neurons, the scientists needed a way to target the astrocytes alone. The key turned out to a structural protein that helps to give astrocytes their branching structure, here linked to a protein that fluoresces green. Credit LPDWiki Usage Restrictions Please credit 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.