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J Cancer Res Clin Oncol. 1988;114(6):636-40. doi: 10.1007/BF00398190.

N-myc amplification at chromosome band 1p32 in neuroblastoma cells as investigated by in situ hybridization.

Journal of cancer research and clinical oncology

L Longo, H Christiansen, N M Christiansen, P Cornaglia-Ferraris, F Lampert

Affiliations

  1. Pediatric Oncology Research Laboratory, G. Gaslini Children's Hospital, Genoa, Italy.

PMID: 3204111 DOI: 10.1007/BF00398190

Abstract

Chromosome deletion at the short arm of one chromosome 1 (1p32)--the most common aberration in neuroblastoma cells--was found to be combined with the generation of a homogeneously staining region at this specific site in a newly established neuroblastoma cell line (GI-LI-N) from a stage IV neuroblastoma. By in situ hybridization this homogeneously staining region was shown to contain multiple copies of the proto-oncogene N-myc. This 30-fold oncogene amplification was confirmed by Southern-blot and DNA-dot-blot analyses. In two additional cell lines from children with stage IV neuroblastoma (GI-ME-N and GI-CA-N) N-myc amplification was not detected. Chromosome 1, however, was involved in a structural rearrangement in one cell line (GI-ME-N).

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