title: Importance of phenotypic and molecular characterization for identification of a neuroepithelioma tumor cell line, NUB-20.
abstract: A neuroblastic-like cell line (NUB-20) was derived from a case of histopathologically diagnosed metastatic neuroblastoma. The metastatic tumor and nude mouse heterotransplant resembled neuroblastoma by histological criteria, in contrast to the primary tumor, which was differentially classified as Ewing's sarcoma. However, the cell line demonstrated a unique phenotype in culture with respect to morphology, immunohistochemical markers, and sensitivity to a battery of differentiation modulators. These characteristics, together with the presence of a chromosomal translocation (11;22),(q24;q12) and amplification with enhanced expression of the c-myc protooncogene rather than N-myc, established this tumor as neuroepithelioma. Neuroepithelioma is a tumor type distinct from, but related to, neuroblastoma in its development from the neural crest lineage. These results emphasize the growing importance of cytogenetic and molecular markers in the classification and characterization of human tumors.
authors.affiliation: Department of Pathology, Hospital for Sick Children, Toronto, Ontario, Canada.
authors.forename: H
authors.initials: H
authors.lastname: Yeger
authors.forename: O
authors.initials: O
authors.lastname: Mor
authors.forename: G
authors.initials: G
authors.lastname: Pawlin
authors.forename: C
authors.initials: C
authors.lastname: Kaplinsky
authors.forename: Y
authors.initials: Y
authors.lastname: Shiloh
mesh_terms: D003994:Bucladesine / Q000494:pharmacology; D002395:Catecholamines / Q000032:analysis; D002454:Cell Differentiation / Q000187:drug effects; D002455:Cell Division / Q000187:drug effects; D002460:Cell Line; D002648:Child; D015870:Gene Expression; D006801:Humans; D007150:Immunohistochemistry; D007370:Interferon Type I / Q000494:pharmacology; D007371:Interferon-gamma / Q000494:pharmacology; D008297:Male; D018241:Neuroectodermal Tumors, Primitive, Peripheral / Q000032:analysis / Q000235:genetics / Q000473:pathology*; D010641:Phenotype; D011519:Proto-Oncogenes; D011994:Recombinant Proteins; D014407:Tumor Cells, Cultured
chemical_list: D002395:Catecholamines; D007370:Interferon Type I; D011994:Recombinant Proteins; D003994:Bucladesine; D007371:Interferon-gamma