Volume 23, Issue 2 pp. 134-140
Research Article

MYCN Is the only highly expressed gene from the core amplified domain in human neuroblastomas

Jill L. Reiter

Jill L. Reiter

Division of Oncology, The Children's Hospital of Philadelphia and the University of Pennsylvania, Philadelphia, Pennsylvania

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Garrett M. Brodeur

Corresponding Author

Garrett M. Brodeur

Division of Oncology, The Children's Hospital of Philadelphia and the University of Pennsylvania, Philadelphia, Pennsylvania

Division of Oncology, Suite 902-D, Children's Hospital of Philadelphia, Abramson Pediatric Research Center, 324 South 34th Street, Philadelphia, PA 19104–4318Search for more papers by this author

Abstract

MYCN amplification in neuroblastomas is strongly associated with advanced stages of disease and a poor prognosis. We have recently defined a 130 kb core region of the MYCN amplicon that is consistently amplified in neuroblastomas. However, it has been argued that other expressed sequences were coamplified with MYCN and, as a result, might contribute to the aggressive phenotype of MYCN-amplified neuroblastomas. Therefore, we have screened cosmids representing the core MYCN-amplified domain and surrounding DNA by using a differential hybridization approach to detect other amplified, highly expressed genes from this region. Our results suggest that MYCN is the only highly expressed gene consistently amplified in human neuroblastomas, and that the MYCN gene is likely to be the only selective marker for genomic amplification in these tumors. Genes Chromosomes Cancer 23:134–140, 1998. © 1998 Wiley-Liss, Inc.

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