Cancer is a complex set of diseases involving a variety of different cell types, including tumor, endothelial, stromal and immune cells. The behavior of a tumor and its response to specific cancer therapies are difficult to predict. They largely depend on its cellular morphology, tumor metabolism and the genetic and epigenetic changes accumulating in the tumor cells. But they are also influenced by the tumor micro-environment, which consists of, among others, the tumor vasculature and infiltrating immune cells. To advance the understanding of cancer biology and treatment, a multidisciplinary approach is needed. Within VIB, scientists conduct both strategic basic and translational research into cancer.