Increase in numbers of 6-thioguanine-resistant human lymphocytes in short-term culture. 1982

B Lange, and J E Prantner

Lymphocytes from healthy young adults and from adolescent patients with cancer were examined for their ability to incorporate [3H]thymidine in short-term culture in the presence of phytohemagglutinin and 6-thioguanine (6-TG). The numbers of labeled nuclei after 72 h in culture were compared to numbers of labeled nuclei after 30 h in culture. The numbers of labeled nuclei in the presence of 6-TG increased 6-65-fold between 30 and 72 h. The increases in number could be accounted for by 3-6 cycles of cell division. The data suggest that 6-TG-resistant peripheral blood lymphocytes are capable of reproduction in short-term culture, but factors other than reproduction may also contribute to increases in numbers of 6-TG-resistant cells.

UI MeSH Term Description Entries
D008213 Lymphocyte Activation Morphologic alteration of small B LYMPHOCYTES or T LYMPHOCYTES in culture into large blast-like cells able to synthesize DNA and RNA and to divide mitotically. It is induced by INTERLEUKINS; MITOGENS such as PHYTOHEMAGGLUTININS, and by specific ANTIGENS. It may also occur in vivo as in GRAFT REJECTION. Blast Transformation,Blastogenesis,Lymphoblast Transformation,Lymphocyte Stimulation,Lymphocyte Transformation,Transformation, Blast,Transformation, Lymphoblast,Transformation, Lymphocyte,Activation, Lymphocyte,Stimulation, Lymphocyte
D008214 Lymphocytes White blood cells formed in the body's lymphoid tissue. The nucleus is round or ovoid with coarse, irregularly clumped chromatin while the cytoplasm is typically pale blue with azurophilic (if any) granules. Most lymphocytes can be classified as either T or B (with subpopulations of each), or NATURAL KILLER CELLS. Lymphoid Cells,Cell, Lymphoid,Cells, Lymphoid,Lymphocyte,Lymphoid Cell
D008940 Mitotic Index An expression of the number of mitoses found in a stated number of cells. Index, Mitotic,Indices, Mitotic,Mitotic Indices
D012016 Reference Values The range or frequency distribution of a measurement in a population (of organisms, organs or things) that has not been selected for the presence of disease or abnormality. Normal Range,Normal Values,Reference Ranges,Normal Ranges,Normal Value,Range, Normal,Range, Reference,Ranges, Normal,Ranges, Reference,Reference Range,Reference Value,Value, Normal,Value, Reference,Values, Normal,Values, Reference
D002478 Cells, Cultured Cells propagated in vitro in special media conducive to their growth. Cultured cells are used to study developmental, morphologic, metabolic, physiologic, and genetic processes, among others. Cultured Cells,Cell, Cultured,Cultured Cell
D004351 Drug Resistance Diminished or failed response of an organism, disease or tissue to the intended effectiveness of a chemical or drug. It should be differentiated from DRUG TOLERANCE which is the progressive diminution of the susceptibility of a human or animal to the effects of a drug, as a result of continued administration. Resistance, Drug
D006689 Hodgkin Disease A malignant disease characterized by progressive enlargement of the lymph nodes, spleen, and general lymphoid tissue. In the classical variant, giant usually multinucleate Hodgkin's and REED-STERNBERG CELLS are present; in the nodular lymphocyte predominant variant, lymphocytic and histiocytic cells are seen. Granuloma, Hodgkin,Granuloma, Malignant,Hodgkin Lymphoma,Lymphogranuloma, Malignant,Granuloma, Hodgkin's,Granuloma, Hodgkins,Hodgkin Lymphoma, Adult,Hodgkin's Disease,Hodgkin's Lymphoma,Hodgkins Disease,Lymphocyte Depletion Hodgkin's Lymphoma,Lymphocyte-Rich Classical Hodgkin's Lymphoma,Mixed Cellularity Hodgkin's Lymphoma,Nodular Lymphocyte-Predominant Hodgkin's Lymphoma,Nodular Sclerosing Hodgkin's Lymphoma,Adult Hodgkin Lymphoma,Disease, Hodgkin,Disease, Hodgkin's,Disease, Hodgkins,Hodgkin Granuloma,Hodgkin's Granuloma,Hodgkins Granuloma,Hodgkins Lymphoma,Lymphocyte Rich Classical Hodgkin's Lymphoma,Lymphogranulomas, Malignant,Lymphoma, Hodgkin,Lymphoma, Hodgkin's,Malignant Granuloma,Malignant Granulomas,Malignant Lymphogranuloma,Malignant Lymphogranulomas,Nodular Lymphocyte Predominant Hodgkin's Lymphoma
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000328 Adult A person having attained full growth or maturity. Adults are of 19 through 44 years of age. For a person between 19 and 24 years of age, YOUNG ADULT is available. Adults
D012208 Rhabdomyosarcoma A malignant solid tumor arising from mesenchymal tissues which normally differentiate to form striated muscle. It can occur in a wide variety of sites. It is divided into four distinct types: pleomorphic, predominantly in male adults; alveolar (RHABDOMYOSARCOMA, ALVEOLAR), mainly in adolescents and young adults; embryonal (RHABDOMYOSARCOMA, EMBRYONAL), predominantly in infants and children; and botryoidal, also in young children. It is one of the most frequently occurring soft tissue sarcomas and the most common in children under 15. (From Dorland, 27th ed; Holland et al., Cancer Medicine, 3d ed, p2186; DeVita Jr et al., Cancer: Principles & Practice of Oncology, 3d ed, pp1647-9) Rhabdomyosarcomas

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