Medical director, medical oncologist and scientist Emile Voest aims to answer questions such as: how are tumor cells recognized by the immune system? And how do they escape? Group leader Anastassis (Tassos) Perrakis of the Biochemistry division investigates macromolecular structures (large molecules), in order to eventually translate basic research into new therapies. Group leader and head of the division Tumor Biology & Immunology Jannie Borst investigates, among other things, how cytotoxic T-cells fight tumors.