Abstract
Thesearch for new prognostic and stratification genetic and epigenetic markers in neuroblastoma is an urgent problem in pediatric oncology. Thereview summarizes recent progress in studying theexpression of genes involved in p53 pathway regulation in neuroblastoma. Several markers associated with recurrence risk and poor outcome are considered. Among them are MYCN amplification, high MDM2 and GSTP1 expression and homozygous mutant allele variant of GSTP1 gene A313G polymorphism. Prognostic criteria for neuroblastoma based on theanalysis of miR-34a, miR-137, miR-380-5p, and miR-885-5p expression involved in regulating p53-mediated pathway are also considered. Theauthors' research data on therole of theabove markers in regulation of this pathway in neuroblastoma are presented. Thestudy of alterations in expression of microRNAs and genes involved in p53 pathway regulation will not only expand our understanding of themechanisms of neuroblastoma pathogenesis but could substantiate new approaches for delineating risk groups and risk stratification of neuroblastoma patients as well as treatment optimization based on thegenetic characteristics of thetumor.
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