Clinical Relevance Graphic (IMAGE) Duke University Caption Recombinant proteins may become more important as anti-cancer biologic drugs if they can be delivered in selected combinations by a slow release gel. Credit Mandana Manzari Usage Restrictions Usage with credit 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.