Enveloped delivery vehicles (IMAGE) University of California - Berkeley Caption Enveloped viruses get their outer coat by budding from cells they've invaded. CRISPR-Cas9 researchers coopted this behavior to produce envelope-derived vehicles that encapsulate Cas9 proteins (dark green), guide RNA and transgenes. These loaded carriers target and invade specific types of human T-cells, where they simultaneously edit and insert new genes, turning the T-cells into cancer fighters. Credit Jenny Hamilton, IGI/UC Berkeley Usage Restrictions none License Original 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.