Our team has more than 15 years of experience working in the field of microglia, and an international recognition. Highlights of our research include the discovery of a role for killer caspases in microglia pro-inflammatory and tumor-supporting phenotypes and a contribution to the understanding of the transcriptional/epigenetic regulation of microglial activation states and the possibility to reprogram microglia toward distinct phenotypes. Lately, we have been arguing for the concept of microglia diversity, i.e., the existence of microglial subtypes.