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J Virol. 1973 February; 11(2): 177-182
Copyright © 1973 American Society for Microbiology. All Rights Reserved.

Transformation of Rat Liver Cells with Chicken Sarcoma Virus B77 and Murine Sarcoma Virus

C. Altaner and E. Hlavayova

Cancer Research Institute, Slovak Academy of Science, Bratislava, Czechoslovakia

ABSTRACT

Rat liver cells in vitro were transformed with chicken sarcoma virus B77, giving RL(B77) cells, and with murine sarcoma virus (Harvey), giving RL(MSV) cells. Rat liver cells transformed spontaneously in vitro were designated RL cells. In addition, the RL(MSV) cell line was adapted for growth in culture fluid containing 25 µg of 5-bromodeoxyuridine per ml. All cell lines were tumorigenic in 1-wk-old rats. The number of cells needed for induction of tumor growth was 1,000-fold higher in the case of RL(B77) cells in comparison with RL(MSV) cells and RL cells. No production of viral particles from any of the cell lines investigated was detected by plating concentrated supernatant fluid of the cultures on different secondary embryo cells with and without fusion by Sendai virus, by labeling with uridine-5-3H, or by assay for deoxyribonucleic acid polymerase activity. The viral genome was rescued by fusion of RL(B77) cells with chicken cells. Chicken sarcoma virus rescued from (RL(B77) cells differed in plating efficiency on duck cells from B77 virus rescued from transformed rat embryo cells. No virus was rescued after fusion of RL(MSV) and RL cells with mouse, rat, or chicken embryo cells. Infectious murine sarcoma virus can be induced by 5-bromodeoxyuridine from RL(MSV) cells.

J Virol. 1973 February; 11(2): 177-182
Copyright © 1973 American Society for Microbiology. All Rights Reserved.





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