Extracellular Vesicles (IMAGE) Boston Children's Hospital Caption Extracellular vesicles, also known as exosomes, cross the blood-brain barrier via a transcytosis process. Credit Kristin Johnson/Vascular Biology Program, Boston Children's Hospital for <em>ACS Nano</em> 2019; <a href="http://doi.org/10.1021/acsnano.9b04397" target="_blank">doi.org/10.1021/acsnano.9b04397</a> Usage Restrictions None 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.