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Phenotypic Characterization of a Virus Producing Line Established from a Patient with Leukaemia/Lymphoma: Comparison with T‐Lymphoblastic and Myeloblastic Lines
Author(s) -
Karpas A.,
Worman C. P.,
Khalid G.,
Neumann H.,
Hayhoe F. G.J.,
Newell D.,
Stewart J. W.
Publication year - 1980
Publication title -
british journal of haematology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.907
H-Index - 186
eISSN - 1365-2141
pISSN - 0007-1048
DOI - 10.1111/j.1365-2141.1980.tb05911.x
Subject(s) - terminal deoxynucleotidyl transferase , cell culture , biology , lymphoma , in vitro , virus , karyotype , virology , cancer research , immunology , microbiology and biotechnology , immunohistochemistry , genetics , gene , tunel assay , chromosome
S ummary . The properties have been studied of a haemic cell line established from a patient with longstanding non‐Hodgkin's lymphoma after transformation to acute leukaemia. The cells are EBNA, Fc, C3 and SmIg and la‐like antigen negative. The continuous in vitro proliferation and karyotype abnormalities suggest malignancy. The cells contain only the lymphoid type of alkaline phosphatase and a high level of terminal deoxynucleotidyl transferase and as they formed E‐rosettes during the first year in culture they may be of T‐cell lineage. Since the patient's leukaemic cells have not been studied it is impossible to know whether the cultured cells represent an in vitro proliferation of the patient's malignant cells or an outgrowth of a subpopulation of cells. In the cytoplasm of many cells inclusion bodies containing virus‐like particles, similar to those observed in fresh human leukaemia cells, were often seen. As this new virus is biologically active, infection of the cells by virus may explain their continuous proliferation in vitro.