Systematic name M15009
Brief description Genes down-regulated in Kelly cells (neuroblastoma) by overexpressing INHBA [GeneID=3624] off a plasmid vector.
Full description or abstract Amplification of the MYCN oncogene contributes to the malignant progression of human neuroblastomas, but the mechanisms have remained unclear. We have previously demonstrated that N-Myc facilitates angiogenesis by downregulating an angiogenesis inhibitor identified as the inhibin betaA homodimer activin A. Here, we have sought to define the molecular, biological and clinical consequences of activin A expression in human neuroblastoma. We report that enhanced activin A expression suppresses proliferation and colony formation of human neuroblastoma cells with amplified MYCN in vitro; that it inhibits neuroblastoma growth and angiogenesis in vivo; that it is highly expressed in differentiated, but not undifferentiated human neuroblastomas; and that it correlates with favourable outcome of neuroblastoma patients. Our results indicate that high activin A expression plays an important beneficial role in human neuroblastoma.
Collection ARCHIVED: Archived Founder gene sets that are referenced by current Hallmarks
      C2_NONE: ARCHIVED Curated
            C2_CGP: ARCHIVED Chemical and Genetic Perturbations
Source publication Pubmed 15580313   Authors: Schramm A,von Schuetz V,Christiansen H,Havers W,Papoutsi M,Wilting J,Schweigerer L
Exact source Table 1: Down in KT3
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Source species Homo sapiens
Contributed by Arthur Liberzon (MSigDB Team)
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