COSMIC: Combatting Disorders of Adaptive Immunity with Systems Medicine The Marie Skłodowska-Curie actions (MSCA) support researchers at all stages of their careers. One type of action is the European Training Network (ETN) aimed at joint research training by partners from academia, industry, and other organisation. COSMIC is a ETN funded from the European Union's Horizon 2020 research and innovation programme under grant agreement No 765158. COSMIC delivers the next generation of systems medicine professionals who successfully combat complex human disorders. We will focus on B-cell lymphoma and rheumatoid arthritis, diseases that originate from abnormal functioning of the adaptive immune system, in particular the germinal center. COSMIC develops and integrates experimental and computational approaches, and establish a unique cross-fertilization between oncology and auto-immunity.