Gutmann in Lab (IMAGE) WashU Medicine Caption David H. Gutmann, MD, PhD, and colleagues at Washington University School of Medicine in St. Louis studying brain tumors in mice discovered that tumors grow most rapidly if they can enlist the aid of immune cells. The findings suggest that therapies targeting immune cells could potentially treat some kinds of brain tumors. Credit Washington University Usage Restrictions This image is to be used in accordance with the mission, policies and guidelines of Washington University in St. Louis. Visit https://wustl.edu/about/compliance-policies/media-policies/photo-use/ for more information. 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.