Establishment of a near-tetraploid B-cell lymphoma line with duplication of the 8;14 translocation - PubMed (original) (raw)

Establishment of a near-tetraploid B-cell lymphoma line with duplication of the 8;14 translocation

M Nishikori et al. Cancer Genet Cytogenet. 1984 May.

Abstract

The neoplastic cells of a patient with diffuse histiocytic lymphoma were grown in three systems: Soft agar, liquid culture, and by heterotransplantation into the nude mouse. In each case, the growing cells were shown to bear the same immunoglobulin heavy and light chain type as the original neoplastic cells (IgM-lambda). In both the liquid culture and nude mouse heterotransplant tumors, karyotypic analysis revealed the presence of pseudodiploid and near-tetraploid metaphases bearing one and two copies of an 8;14 translocation, respectively. From the liquid culture separate clones of pseudodiploid and near-tetraploid cells were isolated in soft agar, and separate cell lines SK-DHL2A and SK-DHL2B were established. Studies comparing the proliferative characteristics of the two lines showed no difference in cell population doubling time or clonigenicity in soft agar. Hence, the presence of two copies of the translocated material did not confer a proliferative advantage on cells containing it. Theses lines may be valuable in future studies of cell proliferation and oncogenesis in the human immune system.

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Establishment of a near-tetraploid B-cell lymphoma line with duplication of the 8;14 translocation - PubMed (original) (raw)