Martijn Nolte is a broadly interested immunologist, with a strong expertise in T cell biology. He obtained his PhD in 2002 with Profs. Georg Kraal and Reina Mebius in AMsterdam. His main focus in the last decade has been on the bone marrow as an immunological organ and how hematopoiesis is affected by immune cells and inflammatory responses. He found that memory T cells support hematopoietic stem cells and revealed how T cell activation influences hematopoietic differentiation. He also uncovered T cell residency in the bone marrow and how this organ serves as an important reservoir for memory T cells.