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- W1997332545 abstract "Nude mice xenotransplants have been performed on human primary sarcomas of bone and soft tissues in order to delve into the cell heterogeneity of these neoplasms. Particular emphasis has been given to the group of small round blue cell sarcomas (Ewing's sarcomas and peripheral neuroectodermal tumors). Out of 31 xenotransplanted sarcomas, 16 cases have grown positively, and many of them continue to be transferred into nude mice on a regular time basis, being presently considered as fully established nude lines. Here we report the results of such a system, which has been followed with optical, electron microscopical, immunohistochemical and cytogenetic techniques. Osteosarcomas make up the group with the highest number of positivities taken (6 out of 9 transplanted cases). Diversity in growth rate, positive tumors and morphology are taken into consideration. Epithelial foci were seen in one of the transplanted neoplasms. Malignant fibrous histiocytoma and other mesenchymal sarcomas of bone and soft tissues are reviewed. Changes in immunohistochemical reactivity (alpha-1AT and alpha-1AQT) were observed in the transplanted neoplasms. Cytogenetic analysis performed on an undifferentiated (primitive) soft-tissue sarcoma provided clues to its synovial origin. Analysis of Ewing's sarcoma performed on nude mice transplanted tumors shows heterogeneous immunohistochemical response, with enhancement of cytokeratin positive cells, not previously seen in the primary neoplasms." @default.
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- W1997332545 date "1988-11-01" @default.
- W1997332545 modified "2023-10-17" @default.
- W1997332545 title "Value of Nude Mice Xenografts in the Expression of Cell Heterogeneity of Human Sarcomas of Bone and Soft Tissue" @default.
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- W1997332545 doi "https://doi.org/10.1016/s0344-0338(88)80053-0" @default.
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