Soft tissue Ewing's sarcoma. Characterization in established cultures and xenografts with evidence of a neuroectodermic phenotype
| Autor: | Carmen Carda, Miguel Pérez-Bacete, Rosa Noguera, J Boix, Amando Peydro-Olaya, Antonio Llombart-Bosch, Antonio Pellín |
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| Rok vydání: | 1990 |
| Předmět: |
Adult
Male Cancer Research Pathology medicine.medical_specialty Neurofilament Adolescent Synaptophysin Mice Nude Soft Tissue Neoplasms Sarcoma Ewing Biology Histogenesis Proto-Oncogene Proteins c-myc Cytokeratin Mice CD57 Antigens Intermediate Filament Proteins Glial Fibrillary Acidic Protein medicine Chromogranins Tumor Cells Cultured Animals Humans Mice Inbred BALB C Glial fibrillary acidic protein S100 Proteins Ewing's sarcoma Chromogranin A Membrane Proteins Neoplasms Germ Cell and Embryonal medicine.disease Antigens Differentiation Oncology Karyotyping Phosphopyruvate Hydratase biology.protein Immunohistochemistry Female Sarcoma Neoplasm Transplantation |
| Zdroj: | Cancer. 66(12) |
| ISSN: | 0008-543X |
| Popis: | This study characterizes the histogenesis of soft tissue Ewing’s sarcoma (StEs) based upon an analysis of three tumors. Long-term cultured cell lines and nude mice xenografts were established from original neoplasms or from their metastases. Histologically they revealed a small round cell pattern without signs of differentiation. Several ultrastructural features of neural type were found; the same were also seen on culture cell lines. Moreover, immunohistochemical study for neural markers revealed the presence of HNK-1, NSE, LIRC-LON 36, S-100 protein, glial fibrillary acidic protein, neurofilaments (70 kilodaltons), and chromogranin; some of these markers were present only in the transplants. Cytokeratin was also seen. The translocation t(11;22)(q24;q12) was found in all three neoplasms together with other chromosomal abnormalities. N-myc RNA gave negative results whereas c-myc RNA was expressed. Therefore it may be postulated that StEs displays neuroectodermal features somewhat similar to those seen in peripheral neuroepithelioma as well as in atypical Ewing’s sarcoma of bone. Cancer 66:2589-2601,1990. |
| Databáze: | OpenAIRE |
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