Image 2 (IMAGE) Nara Institute of Science and Technology Caption PGV-1 inhibits metabolic enzymes to increase ROS and kill cancer cells. Credit Jun-ya Kato Usage Restrictions Credit required. 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.