Elucidating Neurodevelopmental Trajectories in Cancer with Topic Modeling: Revealing Persistent External Granule Layer Lineages in Medulloblastoma.

ABSTRACT: The cerebellar rhombic lip generates cerebellar progenitors and neurons that ultimately differentiate to comprise over half of all neurons in the adult human brain. Standard clustering approaches often fragment or miss rhombic lip progenitor populations entirely due to their transient nature, small size, and rapid state transitions, leaving fundamental questions unanswered about normal cerebellar development and how such processes may be hijacked in pediatric brain cancer. Medulloblastoma, the most common malignant pediatric brain tumor, affects approximately 500 children annually in the United States with overall survival rates varying dramatically by subgroup. Sonic hedgehog (SHH) medulloblastoma, comprising 25-30% of cases, arises from rhombic lip-derived granule neuron precursors (GNP)

SUBMITTER: Rajendran A 

PROVIDER: S-EPMC12642311 | biostudies-literature | 2025 Nov

REPOSITORIES: biostudies-literature