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Two sublines of a breast epithelial cell culture, MCF-10, derived from human fibrocystic mammary tissue exhibit immortality after extended cultivation in low calcium concentrations (0.03-0.06 mM) and floating transfers in low calcium (MCF-10F), or by trypsin-Versene passages in the customary (normal) calcium levels, 1.05 mM (MCF-10A). Both sublines have(More)
The extensive use of cell cultures for diverse research purposes is one of the truly great international growth industries. With the proliferation of cells comes a responsibility for monitoring them for inter- and intraspecies characteristics. We use multiple genetic markers for cell identification, i.e. species specific antigens, isozymic phenotypes,(More)
Leukocyte-transforming agents were isolated in baboon leukocytes inoculated with oral excretions from immunosuppressed chimpanzees. The transformed lymphoblasts had B cell surface markers and harbored herpes-type virus particles; 5-10% of the cells contained cytoplasmic antigens reactive with Epstein-Barr virus (EBV)-antibody-positive chimpanzee, human and(More)
All human T lymphoblast cell lines have been derived from subjects with leukemia secondary to thymic lymphoblastic lymphoma, a T cell malignancy, suggesting that such lines represent established cultures of neoplastic T cells. Based on this observation, we prepared rabbit antisera to T cell line HSB-2, removed reactivity for histocompatibility antigens and(More)