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J Natl Cancer Inst. 1989 Oct 4;81(19):1492-6.

Heterogeneity of hematopoietic cells immortalized by v-myc/v-raf recombinant retrovirus infection of bone marrow or fetal liver.

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Laboratory of Molecular Immunoregulation, NCI-Frederick Cancer Research Facility, MD 21701.


The J2 recombinant retrovirus expressing v-myc/v-raf (also known as MYC/RAF1) immortalized macrophages from the bone marrow of lipopolysaccharide-responsive mouse strains, producing the ANA-1 cell line from C57BL/6 mice and the INF-3A cell line from C3H/HeN mice. In contrast, J2 recombinant retrovirus infection of the fetal liver from C57BL/6-Ly-5a mice immortalized a cell line (GGD) that did not exhibit the characteristics of mature macrophages. The GGD cell line was classified as leukocytic on the basis of its expression of the Ly-6B.2, Fc gamma R, and Ly-5.2 antigens. Our results indicate that the J2 recombinant retrovirus selectively immortalizes macrophages from the bone marrow of C57BL/6 and C3H/HeN mice but immortalizes cells without definitive macrophage characteristics from murine fetal liver under the same culture conditions.

[Indexed for MEDLINE]

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