photo of researchers (IMAGE) Rice University Caption Christian Schreib (left) and Omid Veiseh before a screen displaying an image of a selected region of an explanted disk chemically modified to recruit specific macrophage immune cells. ECV stands for extracellular vesicle. Credit Photo by Gustavo Raskosky/Rice University Usage Restrictions Must credit Gustavo Raskosky/Rice University. 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.