AXL in Developing Human Brain (IMAGE) Cell Press Caption This photo shows a developing human brain section where the radial glia are in red, the neurons are in blue, and the AXL receptors are in green. Credit Tomasz Nowakowski Usage Restrictions Credit Required. 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.