Gene expression profiling in pediatric and adolescent and young adult rhabdomyosarcomas

ABSTRACT: Adolescents and young adults (AYA) with rhabdomyosarcoma (RMS) form a subgroup of patients whose optimal clinical management and best possible access to care remain a challenge and survival lacks behind that of children while diagnosed with histologically similar tumors. Understanding the tumor biology that differentiate children from AYA-RMS could provide critical information and drive new initiatives to improve their final outcome. Gene expression profiling was evaluated in a RMS series of 48 tumor and 13 non-neoplastic tissues. GEP analysis detected 793 age-correlated genes in tumors. NOTCH2, FGFR1 were significantly down-modulated in AYA-RMS. GEP showed an increase in CD4 memory resting cells and a decrease in γδ T-cells in AYA-RMS. IHC analysis demonstrated an increase of infiltrated CD4, CD8 and neutrophils in AYA-RMS tumors.

ORGANISM(S): Homo sapiens

PROVIDER: GSE135517 | GEO | 2019/11/05

REPOSITORIES: GEO