Gu Goo (1 of 2) (IMAGE) University of North Carolina Health Care Caption When injected into tumors, this therapy forms a gel to attack cancer cells. Credit (Gu Lab) Usage Restrictions credit properly 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.