Killer cells get better with age (IMAGE) Saarland University Caption Dr. Annette Lis (R) and Dorina Zöphel (L) of Saarland University are studying how the activity of killer cells changes as the cells age. Up until now it had been widely assumed that the ability of killer T cells to destroy tumour cells and pathogens would deteriorate with age. It turns out, however, that the opposite is true – they become better killers, the older they get. Credit Oliver Dietze Usage Restrictions Press photographs can be used free of charge with this press release or in connection with reports about Saarland University provided that a photo credit with the photographer’s name is included. 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.