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  • Title: Establishment of two canine sarcoma cell lines: productive infection with feline leukemia virus.
    Author: Chapman AL, Fischinger PJ, Tung HN.
    Journal: J Natl Cancer Inst; 1975 Aug; 55(2):345-52. PubMed ID: 169374.
    Abstract:
    Two canine sarcoma cell lines (11028, 11031) were established in vitro and have been transferred 213 and 306 times, respectively, since 1970. These cell lines had a chromosome pattern consistent with their canine origin. Both cultures were infected with feline leukemia virus (FeLV), which caused a morphologic and karyotypic changes. The cells became rounded after infection with FeLV and both cultures showed the presence of a single, large, acrocentric chromosome considered to be a marker chromosome. All tumors were transplanted into newborn beagle pups, but only the 11028-FeLV formed metastatic tumors. No helper or focus-forming activity or virus particles were found in the uninfected cultures. Helper activity and virus were demonstrated in both sarcoma lines after infection with FeLV, though no focus-forming activity was noted. Helper activity of progeny virus could be assayed on either cat or dog embryo cells.
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