Researchers have identified a key biological mechanism responsible for the poor prognosis seen in a subset of patients with diffuse large B-cell lymphoma (DLBCL), the most common aggressive form of lymphoma worldwide. In a new study published in Nature Genetics, an international team led by Goethe University Frankfurt, Universitätsmedizin Frankfurt, the German Cancer Consortium (DKTK), and the Frankfurt Cancer Institute discovered novel molecular features that can distinguish high-risk patients who are unlikely to respond to standard first-line treatment.