Molecular and clinical features of a Japanese medulloblastoma cohort: Subgroup-specific prognostic stratification using economical/accessible diagnostic methods - PubMed
14 hours ago
- #prognostic stratification
- #molecular diagnosis
- #medulloblastoma
- Study analyzed 242 medulloblastoma (MB) cases from 39 institutions in Japan.
- Molecular classification used NanoString gene expression, DNA methylation arrays, and MLPA-based copy number profiling.
- Subgroup distribution: 16.1% WNT, 24.8% SHH, 17.4% Group 3, and 41.7% Group 4.
- WNT cases characterized by CTNNB1 mutations and monosomy 6.
- SHH MB had MYCN amplification and TP53 mutations as adverse markers.
- Group 3 showed worst survival with MYC amplification and metastasis as poor prognostic factors.
- Group 4 had large cell/anaplastic histology as poor outcome predictor, chromosome 11 loss correlated with favorable prognosis.
- Developed SEE-6-CNA, a simplified MLPA-based classifier for prognostic stratification.
- Findings confirm Japanese MB molecular features align with global observations.
- SEE-6-CNA provides cost-effective tool for individualized treatment in resource-limited settings.