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Related Experiment Video

Updated: Mar 21, 2026

Zebrafish Model of Neuroblastoma Metastasis
05:20

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Neuroblastoma and Its Zebrafish Model.

Shizhen Zhu1, A Thomas Look2

  • 1Department of Biochemistry and Molecular Biology, Cancer Center and Center for Individualized Medicine, Mayo Clinic, Rochester, MN, 55902, USA. Zhu.shizhen@mayo.edu.

Advances in Experimental Medicine and Biology
|May 12, 2016
PubMed
Summary

A new zebrafish model reveals how MYCN and ALK genes cooperate to drive neuroblastoma development. This model shows activated ALK blocks cell death, allowing MYCN-driven tumors to grow and spread in children.

Keywords:
ALKAnimal modelFunctional genomicMYCNNeural crestNeuroblastomaTransgenesisZebrafish

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Area of Science:

  • Developmental biology
  • Cancer research
  • Genetics

Background:

  • Neuroblastoma is a significant pediatric cancer originating in the peripheral sympathetic nervous system.
  • Genetic alterations, including MYCN amplification and ALK mutations, are common in neuroblastoma.
  • Understanding the interplay of these genetic changes in oncogenesis is crucial but challenging.

Purpose of the Study:

  • To develop a zebrafish model for studying neuroblastoma pathogenesis.
  • To investigate the cooperative roles of MYCN and activated ALK in tumor initiation and progression.

Main Methods:

  • Generation of a transgenic zebrafish model overexpressing human MYCN and activated ALK in the peripheral sympathetic nervous system.
  • Analysis of tumor development, penetrance, and onset in the zebrafish model.
  • Investigation of the cellular and molecular mechanisms underlying tumor formation.

Main Results:

  • Coexpression of MYCN and activated ALK in zebrafish significantly increased neuroblastoma penetrance and accelerated tumor onset.
  • MYCN overexpression caused neuroblast hyperplasia and blocked differentiation, leading to apoptosis.
  • Activated ALK provided prosurvival signals, inhibiting apoptosis and promoting oncogenic transformation.

Conclusions:

  • The zebrafish model effectively recapitulates human neuroblastoma, demonstrating the cooperative oncogenic roles of MYCN and ALK.
  • Activated ALK acts as a crucial prosurvival factor in the context of MYCN overexpression, driving neuroblastoma progression.
  • This model offers a valuable platform for studying multigenic alterations in neuroblastoma and identifying therapeutic targets.