Overexpression of CD9 and CD82 (image) Rockefeller University Press Share Print E-Mail Caption Electron microscopy of purified cell culture supernatants reveals that cells overexpressing CD9 (middle) or CD82 (right) produce more exosomes than control cells (left). Exosomal release of beta-catenin and inhibition of Wnt signaling may explain why CD82 and CD9 suppress tumor metastasis. Credit Chairoungdua, A., et al. 2010. J. Cell Biol. doi:10.1083/jcb.201002049. Usage Restrictions Reporters may freely use these materials in news coverage, with the appropriate credit information. 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.