Faculty Research 1980 - 1989


Expression of murine leukemia viruses in the highly lymphomatous BXH-2 recombinant inbred mouse strain.

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Cells-Cultured, Female, H-2-Antigens: ge, Lymphoma: mi, Male, Mice, Mice-Inbred-Strains: ge, mi, Mink, Mouse-Leukemia-Viruses: ge, gd, Paralysis, Recombination-Genetic, SUPPORT-U-S-GOVT-P-H-S

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J-Virol. 1981 Aug; 39(2):632-40.




Among 12 recombinant inbred strains of mice derived from crossing two strains, C57BL/6J and C3H/HeJ, which have a low incidence of neoplastic disease, one strain (BXH-2) has been found to have a high incidence of lymphoma, of non-T-cell origin, at an early age. The BXH-2 strain carries the Fv-1b allele and spontaneously expresses a B-tropic murine leukemia virus beginning at as early as 10 days of gestation and continuing throughout their life. No significant differences in ecotropic virus titers were observed at any age tested (16 to 17 days of gestation through 7 months), whereas xenotropic virus was first detected in lymphoid tissues of 2-month-old mice and virus titers increased with age. Dual tropic virus(es), which induced cytopathic changes on mink lung cells, was isolated from BXH-2 lymphomatous tissues. Unlike AKR mink lung focus-forming virus (N-tropic recombinant), BXH-2 dual tropic virus is B tropic and induces cytopathic changes in mouse fibroblast cultures as well. The BXH-2 mouse provides a model system for studying the role of replication-competent viruses in spontaneously occurring leukemias of non-T-cell lineage and neurological disease.

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