title: A quantitative assay for transformation of bone marrow cells by Abelson murine leukemia virus.
abstract: A quantitative Abelson murine leukemia virus (A-MuLV) lymphoid cell transformation assay has been developed using a semisolid agarose culture system. Under these conditions lymphoid cell transformation was shown to vary linearly with the dose of A-MuLV used. The susceptibility of bone marrow cells from different strains of mice to A-MuLV-induced transformation can be estimated using the agarose assay. Strains with bone marrow cells of high, medium, and low susceptibility to A-MuLV can be identified. The assay has been used to study the susceptibility of cells from lymphoid organs of fetal and adult mice to A-MuLV. Cell suspensions from fetal liver, adult bone marrow, and adult spleen are susceptible to A-MuLV, while thymocytes are resistant to A-MuLV-induced transformation. Bovine serum albumin gradient fractionation of bone marrow cells before infection with A-MuLV demonstrates that the majority of A-MuLV-sensitive cells are recovered in a broad band partially overlapping the majority of the nucleated cells. The agarose assay system allows study of A-MuLV-lymphoid cell interaction at the level of single cell-single virus particle interaction.
mesh_terms: D000818:Animals; D001853:Bone Marrow / Q000382:microbiology; D001854:Bone Marrow Cells; D002471:Cell Transformation, Neoplastic / Q000473:pathology; D002999:Clone Cells; D009052:Leukemia Virus, Murine; D008221:Lymphoid Tissue / Q000382:microbiology; D051379:Mice; D008815:Mice, Inbred Strains; D011947:Receptors, Antigen, B-Cell / Q000032:analysis; D013045:Species Specificity
chemical_list: D011947:Receptors, Antigen, B-Cell