An inducible cell line (Natasha), from a neuroblastoma patient with circulating HSR-positive blasts, expressing neurohormones

G. Melino, P. Vernole, M. Annicchiarico-Petruzzelli, A. Stephanou, A. Colantoni, R. A. Knight, L. G. Spagnoli, A. Finazzi-Agro

Research output: Contribution to journalArticle

Abstract

A cell line, established from a neuroblastoma patient, expresses NCAM and L1 cell adhesion molecules. Two chromosomal abnormalities were present in bone marrow (10%) and cell line (82%) metaphases: (i) a homogeneously staining region (HSR) at the distal part of chromosome 14, and (ii) an insertion of unidentified dark G-banding material in I p36. The identification in the patient of chr 14-HSR-positive tumour cells, before the in vitro adaptation, suggests a direct HSR formation without preceding double minutes (dms; or a very early in vivo dms → HSR transformation). N-myc was amplified in the HSR. Cells expressed proopiomelanocortin and corticotropin releasing factor mRNAs. Untreated cells were relatively differentiated; nevertheless they dramatically responded to retinoic acid, forming extensive neurites, growth-cones, cell-cell and cell-neurite junctions. Neurofilaments and synaptic figures containing many dense core granules were identified. This differentiation was irreversible. This cell line is therefore useful for the study of differentiation and in particular for the involvement of neurohormones in the differentiation process.

Original languageEnglish
Pages (from-to)1199-1206
Number of pages8
JournalAnticancer Research
Volume12
Issue number4
Publication statusPublished - 1992

Keywords

  • Corticotropin releasing factor
  • HSR
  • L1
  • NCAM
  • Neuroblastoma
  • NMYC
  • Proopimelanocortin
  • Retinoic acid

ASJC Scopus subject areas

  • Cancer Research
  • Oncology

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    Melino, G., Vernole, P., Annicchiarico-Petruzzelli, M., Stephanou, A., Colantoni, A., Knight, R. A., Spagnoli, L. G., & Finazzi-Agro, A. (1992). An inducible cell line (Natasha), from a neuroblastoma patient with circulating HSR-positive blasts, expressing neurohormones. Anticancer Research, 12(4), 1199-1206.