期刊
CHILDS NERVOUS SYSTEM
卷 27, 期 1, 页码 79-86出版社
SPRINGER
DOI: 10.1007/s00381-010-1260-5
关键词
BMI1; Clinical risk; Expression; Medulloblastoma; MYC; PCGF2
资金
- Ministry of Science and Higher Education [N401 180 32/3580, N401 196 32/4137]
Medulloblastoma is the most frequent type of embryonal tumor in the pediatric population, accounting for 20-25% of all brain tumors in children. Recently, the suspected contribution of the Polycomb group (PcG) genes in medulloblastoma development was described. PcG genes play an important role in developmental processes; they are also involved in the self-renewal of hematopoietic and neural stem cells as well as in malignant transformation. In this study, we evaluated the expression of BMI1and PCGF2, members of family of PcG genes, and their potential target, MYC oncogene, and analyzed their association with demographic and clinical data. Thirty-one children (18 males and 13 females, aged from 0.4 to 17 years) with medulloblastoma were included in this study. The gene's expression level was measured by quantitative real-time PCR, obtained using the two-color multiplexing technique. We found that the higher expression levels of BMI1 and PCGF2 genes were associated with significantly decreased patient survival (p = 0.02 and p = 0.012, respectively). Significant differences between gender were found, with a higher expression level of the PCGF2 gene observed among females (p = 0.02). Our analysis showed correlation between BMI1 and PCGF2 gene's expression and survival in children with medulloblastoma.
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