Dr. Thomas Helleday, Karolinska Institutet (image) Karolinska Institutet Share Print E-Mail Caption Dr. Thomas Helleday of Karolinska Institutet and his colleagues have identified a new way of treating cancer by inhibiting the enzyme MTH1, which cancer cells require for survival. Credit Ulf Sirborn Usage Restrictions This image may only be resproduced/published in connection to media reports about Thomas Helleday and his work at Karolinska Institutet and/or SciLifeLab. 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.