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LMO1 Synergizes with MYCN to Promote Neuroblastoma Initiation and Metastasis.

Cancer cell | 2017

A genome-wide association study identified LMO1, which encodes an LIM-domain-only transcriptional cofactor, as a neuroblastoma susceptibility gene that functions as an oncogene in high-risk neuroblastoma. Here we show that dβh promoter-mediated expression of LMO1 in zebrafish synergizes with MYCN to increase the proliferation of hyperplastic sympathoadrenal precursor cells, leading to a reduced latency and increased penetrance of neuroblastomagenesis. The transgenic expression of LMO1 also promoted hematogenous dissemination and distant metastasis, which was linked to neuroblastoma cell invasion and migration, and elevated expression levels of genes affecting tumor cell-extracellular matrix interaction, including loxl3, itga2b, itga3, and itga5. Our results provide in vivo validation of LMO1 as an important oncogene that promotes neuroblastoma initiation, progression, and widespread metastatic dissemination.

Pubmed ID: 28867147 RIS Download

Associated grants

  • Agency: NCI NIH HHS, United States
    Id: R01 CA196631
  • Agency: NCI NIH HHS, United States
    Id: K08 CA215105
  • Agency: NCI NIH HHS, United States
    Id: R01 CA124709
  • Agency: NCI NIH HHS, United States
    Id: R01 CA180692
  • Agency: NCI NIH HHS, United States
    Id: R01 CA104125
  • Agency: NCI NIH HHS, United States
    Id: R00 CA178189

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