Summary
The morphological characteristics of three clones of hamster brain cells transformed in vitro by polyoma virus and of the tumors obtained after subcutaneous grafting of these cells in syngenic animals are reported. These clones appeared to be glial in nature by light and electron microscopy. The initial tumors induced by the three clones presented astrocytic features both by electron microscopy and immunohistochemistry. Analysis of the subsequent in vivo passages showed a decrease in cell differentiation, which was accompanied by a decrease in the latency period; after 2 years of serial transplantation, the tumors seemed poorly differentiated gliomas. A control cell line of hamster cerebellar cells evolved similarly.
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Tripier, M.F., Hassoun, J., de Micco, C. et al. Tumorigenic clones of hamster brain cells transformed in vitro by polyoma virus. Acta Neuropathol 48, 189–197 (1979). https://doi.org/10.1007/BF00690519
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DOI: https://doi.org/10.1007/BF00690519