Tumor Tissue (image) Indiana University Share Print E-Mail Caption These slides show tumor tissue where ERG and EWS genes interact normally, top, and tumor tissue where ERG has been modified to prevent interaction with EWS, bottom. The green sections indicate cellular proliferation, showing that tumors grow faster when ERG-EWS remains uninhibited. Credit Indiana University Usage Restrictions Credit Indiana University Share Print E-Mail 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.