Abstract
Medulloblastoma (MB) is the most frequent malignant brain neoplasm in children and adolescents. MB is now considered a genetically heterogeneous disease, and it is subdivided into four molecular subgroups (WNT, Shh, Group 3 and Group 4), each with its clinical and genetic characteristics. Exosomes are vesicles secreted by cells, especially under conditions of cellular stress. The exosomes…