Identification of a novel gene signature for neuroblastoma differentiation using a Boolean implication network

Peter E. Zage, Yuchen Huo, Divya Subramonian, Christophe Le Clorennec, Pradipta Ghosh, Debashis Sahoo

Research output: Contribution to journalArticlepeer-review


Although induction of differentiation represents an effective strategy for neuroblastoma treatment, the mechanisms underlying neuroblastoma differentiation are poorly understood. We generated a computational model of neuroblastoma differentiation consisting of interconnected gene clusters identified based on symmetric and asymmetric gene expression relationships. We identified a differentiation signature consisting of series of gene clusters comprised of 1251 independent genes that predicted neuroblastoma differentiation in independent datasets and in neuroblastoma cell lines treated with agents known to induce differentiation. This differentiation signature was associated with patient outcomes in multiple independent patient cohorts and validated the role of MYCN expression as a marker of neuroblastoma differentiation. Our results further identified novel genes associated with MYCN via asymmetric Boolean implication relationships that would not have been identified using symmetric computational approaches and that were associated with both neuroblastoma differentiation and patient outcomes. Our differentiation signature included a cluster of genes involved in intracellular signaling and growth factor receptor trafficking pathways that is strongly associated with neuroblastoma differentiation, and we validated the associations of UBE4B, a gene within this cluster, with neuroblastoma cell and tumor differentiation. Our findings demonstrate that Boolean network analyses of symmetric and asymmetric gene expression relationships can identify novel genes and pathways relevant for neuroblastoma tumor differentiation that could represent potential therapeutic targets.

Original languageEnglish (US)
Pages (from-to)313-331
Number of pages19
JournalGenes Chromosomes and Cancer
Issue number6
StatePublished - Jun 2023


  • Boolean
  • MYCN
  • UBE4B
  • differentiation
  • neuroblastoma
  • Neuroblastoma/pathology
  • Humans
  • Gene Expression Regulation, Neoplastic
  • Cell Line, Tumor
  • Cell Differentiation/genetics
  • N-Myc Proto-Oncogene Protein/genetics
  • Ubiquitin-Protein Ligases/genetics

ASJC Scopus subject areas

  • Genetics
  • Cancer Research


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