Glioblastoma is an aggressive incurable primary malignant brain tumor. Measles virus (MeV) therapy is a promising upcoming treatment strategy with proven preclinical efficacy and clinical safety. Using RNA Sequencing and immunopeptidome analyses, we aimed at identifying a synergistic combination regimen of MeV with conventional therapeutic strategies for glioblastoma patients, i.e. radiotherapy and temozolomide or lomustine, and to understand the underlying molecular mechanism.