한빛사논문, 상위피인용논문
Abstract
Shizhen Zhu,1,6 Jeong-Soo Lee,1,6,8 Feng Guo,1 Jimann Shin,1,9 Antonio R. Perez-Atayde,2 Jeffery L. Kutok,3,10 Scott J. Rodig,3 Donna S. Neuberg,4 Daniel Helman,1 Hui Feng,1 Rodney A. Stewart,1,7 Wenchao Wang,1 Rani E. George,1,5 John P. Kanki,1 and A. Thomas Look1,5,*
1Department of Pediatric Oncology, Dana-Farber Cancer Institute
2Department of Pathology, Children’s Hospital Boston
3Department of Pathology, Brigham and Women’s Hospital
4Department of Biostatistics and Computational Biology, Dana-Farber Cancer Institute
5Division of Hematology/Oncology, Children’s Hospital Boston
Harvard Medical School, Boston, MA 02115, USA
6These authors contributed equally to this work
7Present address: Huntsman Cancer Institute, Department of Oncological Sciences, University of Utah, Salt Lake City, UT 84112, USA
8Present address: Korea Research Institute of Bioscience and Biotechnology, Aging Research Center, Daejeon 305-806, Korea
9Present address: Department of Developmental Biology, Washington University School of Medicine, Saint Louis, MO 63110, USA
10Present address: Molecular Pathology, Infinity Pharmaceuticals, Cambridge, MA 02139, USA
*Correspondence: A. Thomas Look
Summary
Amplification of the MYCN oncogene in childhood neuroblastoma is often accompanied by mutational activation of ALK (anaplastic lymphoma kinase), suggesting their pathogenic cooperation. We generated a transgenic zebrafish model of neuroblastoma in which MYCN-induced tumors arise from a subpopulation of neuroblasts that migrate into the adrenal medulla analog following organogenesis. Coexpression of activated ALK with MYCN in this model triples the disease penetrance and markedly accelerates tumor onset. MYCN overexpression induces adrenal sympathetic neuroblast hyperplasia, blocks chromaffin cell differentiation, and ultimately triggers a developmentally-timed apoptotic response in the hyperplastic sympathoadrenal cells. Coexpression of activated ALK with MYCN provides prosurvival signals that block this apoptotic response and allow continued expansion and oncogenic transformation of hyperplastic neuroblasts, thus promoting progression to neuroblastoma.
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