(IMAGE) Technical University of Munich (TUM) Caption Dr. Jan Böttcher, group leader and TUM Junior Fellow at the Institute of Molecular Immunology at Klinikum rechts der Isar (left) and doctoral student Sebastian Lacher in front of an immunofluorescence microscopy image of a tumor in which tumor-infiltrating immune cells can be seen. In the journal "Nature", the scientists describe a mechanism by which tumors prevent stem cell-like T cells from developing into cytotoxic T cells that could fight the cancer. Credit Astrid Eckert / TUM Usage Restrictions Free for use in reporting on publication DOI: 10.1038/s41586-024-07254-x 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.