Synaptic Proximity Drives Brain Metastasis (IMAGE) Ecole Polytechnique Fédérale de Lausanne Caption Breast cancer cells (blue) associate with glutamate-secreting neurons (red) to stimulate NMDA receptor-mediated signaling (green) of tumor growth. (STED super-resolution microscopy). Credit W. Jiao and Q. Zeng (EPFL) Usage Restrictions Media purposes only. Commercial usage restricted. 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.