IL25 Cytotoxicity (IMAGE) DOE/Lawrence Berkeley National Laboratory Caption This schematic shows the cytotoxicity of IL-25 on breast cancer cells that express IL-25 receptor (IL-25R). Nonmalignant mammary epithelial cells (MECs) do not express IL-25R and are resistant to apoptosis induced by IL-25, whereas cancer cells that express IL-25R are susceptible to IL-25–induced apoptosis. Credit Image courtesy of Saori Furuta, Berkeley Lab 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.