In our WT1-targeted DC vaccination trials for acute myeloid leukemia (NCT01686334), glioblastoma (NCT02649582), and mesothelioma patients (NCT02649829), viability, DC morphology, phenotype (CD86, HLA-DR, CCR7), and positive migration are the most important release criteria before the DC vaccine can be administered to patients. This evidence concerns the gene CCR7 and mesothelioma.