Biomaterial Database

Lymphokine-activated killer (LAK) cell phenomenon. IV. Lysis by LAK cell clones of fresh human tumor cells from autologous and multiple allogeneic tumors. 1985

A A Rayner, and E A Grimm, and M T Lotze, and D J Wilson, and S A Rosenberg

Activated killer cells are generated by the incubation of peripheral blood mononuclear leukocytes (PBL) in the lymphokine interleukin 2 (IL-2). Unseparated populations of these lymphokine-activated killer (LAK) cells lyse a variety of fresh noncultured human tumor targets, but they do not kill normal PBL. This study analyzed the generation and lytic specificity of LAK cell clones. Of 49 (84%) clones isolated by limiting-dilution techniques from a whole population of LAK cells, 41 manifested significant LAK cell activity. LAK cell clones had varied cell surface phenotypes. Clones with high and intermediate LAK cell activity were Leu 2+3-4+7-DR+Tac+ and Leu 2-3+4+7-DR+Tac+, respectively. Single LAK cell clones lysed multiple fresh human tumor targets including autologous sarcoma, 5 allogeneic sarcomas, and a colon cancer in addition to the cultured cell line K562. Autologous PBL were not lysed. Tumor targets were each lysed by multiple LAK cell clones. Sixteen subclones were derived from 5 of these LAK cell clones. These subclones had 99% or greater probability of being derived from a single cell. These subclones also exhibited lysis of multiple tumor targets. These findings suggest the existence of a shared determinant, expressed by multiple human tumors, which is recognized in common by multiple LAK cell clones.

UI	MeSH Term	Description	Entries
D007376	Interleukin-2	A soluble substance elaborated by antigen- or mitogen-stimulated T-LYMPHOCYTES which induces DNA synthesis in naive lymphocytes.	IL-2,Lymphocyte Mitogenic Factor,T-Cell Growth Factor,TCGF,IL2,Interleukin II,Interleukine 2,RU 49637,RU-49637,Ro-23-6019,Ro-236019,T-Cell Stimulating Factor,Thymocyte Stimulating Factor,Interleukin 2,Mitogenic Factor, Lymphocyte,RU49637,Ro 23 6019,Ro 236019,Ro236019,T Cell Growth Factor,T Cell Stimulating Factor
D007694	Killer Cells, Natural	Bone marrow-derived lymphocytes that possess cytotoxic properties, classically directed against transformed and virus-infected cells. Unlike T CELLS; and B CELLS; NK CELLS are not antigen specific. The cytotoxicity of natural killer cells is determined by the collective signaling of an array of inhibitory and stimulatory CELL SURFACE RECEPTORS. A subset of T-LYMPHOCYTES referred to as NATURAL KILLER T CELLS shares some of the properties of this cell type.	NK Cells,Natural Killer Cells,Cell, NK,Cell, Natural Killer,Cells, NK,Cells, Natural Killer,Killer Cell, Natural,NK Cell,Natural Killer Cell
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
D009369	Neoplasms	New abnormal growth of tissue. Malignant neoplasms show a greater degree of anaplasia and have the properties of invasion and metastasis, compared to benign neoplasms.	Benign Neoplasm,Cancer,Malignant Neoplasm,Tumor,Tumors,Benign Neoplasms,Malignancy,Malignant Neoplasms,Neoplasia,Neoplasm,Neoplasms, Benign,Cancers,Malignancies,Neoplasias,Neoplasm, Benign,Neoplasm, Malignant,Neoplasms, Malignant
D009928	Organ Specificity	Characteristic restricted to a particular organ of the body, such as a cell type, metabolic response or expression of a particular protein or antigen.	Tissue Specificity,Organ Specificities,Specificities, Organ,Specificities, Tissue,Specificity, Organ,Specificity, Tissue,Tissue Specificities
D010641	Phenotype	The outward appearance of the individual. It is the product of interactions between genes, and between the GENOTYPE and the environment.	Phenotypes
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
D002999	Clone Cells	A group of genetically identical cells all descended from a single common ancestral cell by mitosis in eukaryotes or by binary fission in prokaryotes. Clone cells also include populations of recombinant DNA molecules all carrying the same inserted sequence. (From King & Stansfield, Dictionary of Genetics, 4th ed)	Clones,Cell, Clone,Cells, Clone,Clone,Clone Cell
D003602	Cytotoxicity, Immunologic	The phenomenon of target cell destruction by immunologically active effector cells. It may be brought about directly by sensitized T-lymphocytes or by lymphoid or myeloid "killer" cells, or it may be mediated by cytotoxic antibody, cytotoxic factor released by lymphoid cells, or complement.	Tumoricidal Activity, Immunologic,Immunologic Cytotoxicity,Immunologic Tumoricidal Activities,Immunologic Tumoricidal Activity,Tumoricidal Activities, Immunologic
D006648	Histocompatibility	The degree of antigenic similarity between the tissues of different individuals, which determines the acceptance or rejection of allografts.	HLA Incompatibility,Histoincompatibility,Human Leukocyte Antigen Incompatibility,Immunocompatibility,Tissue Compatibility,Compatibility, Tissue,HLA Incompatibilities,Histocompatibilities,Histoincompatibilities,Immunocompatibilities,Incompatibility, HLA,Tissue Compatibilities