cancer cells in mice (IMAGE) Cold Spring Harbor Laboratory Caption Cancer spread faster and more furiously in stressed mice (middle column) than in a control group (left column). By comparison, cancer cells in stressed mice treated with an enzyme called DNase I (right column) were largely non-proliferating, and the treatment caused a significant reduction in stress-induced metastasis. Credit Egeblad lab/Cold Spring Harbor Laboratory Usage Restrictions Attribution required License Original 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.