Biomaterial Database

[Augmentation of cytotoxic activity by combination with interleukin 2 and interferon gamma]. 1990

T Tsunoda, and H Tanimura, and H Yamaue, and M Tani, and M Iwahashi

Department of Gastroenterological Surgery, Wakayama Medical College.

The synergy of cytotoxic activity by Interleukin 2 (IL-2) and Interferon gamma (IFN-gamma) was evaluated in human peripheral blood mononuclear cells (PBMC) and spleen cells. PBMC incubated with IL-2 (10 IU/ml) and IFN-gamma (200 IU/ml) for 4 days showed the maximum cytotoxic activity against K562, MOLT-4 and Daudi cells. Combination with IL-2 and IFN-gamma induced stronger activity than IL-2 or IFN-gamma alone. In order to investigate the sequential roles of IL-2 and IFN-gamma in the synergy of killer cell function, IFN-gamma was stimulated after washing-out IL-2 or stimulated at various timing and duration without washing-out IL-2. IL-2 was essential to induce the synergistic effect of IL-2 and IFN-gamma to killer activity. The similar augmentation of killer activity was observed by the addition of IFN-gamma at any incubation period with IL-2, compared with that of stimulations IL-2 and IFN-gamma stimulation. The phenotypes of the killer cells by stimulation of IL-2, IFN-gamma alone or IL-2 and IFN-gamma were mainly CD2+, CD16+, namely, the phenotype of activated natural killer cells.

UI	MeSH Term	Description	Entries
D007371	Interferon-gamma	The major interferon produced by mitogenically or antigenically stimulated LYMPHOCYTES. It is structurally different from TYPE I INTERFERON and its major activity is immunoregulation. It has been implicated in the expression of CLASS II HISTOCOMPATIBILITY ANTIGENS in cells that do not normally produce them, leading to AUTOIMMUNE DISEASES.	Interferon Type II,Interferon, Immune,gamma-Interferon,Interferon, gamma,Type II Interferon,Immune Interferon,Interferon, Type II
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
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
D004357	Drug Synergism	The action of a drug in promoting or enhancing the effectiveness of another drug.	Drug Potentiation,Drug Augmentation,Augmentation, Drug,Augmentations, Drug,Drug Augmentations,Drug Potentiations,Drug Synergisms,Potentiation, Drug,Potentiations, Drug,Synergism, Drug,Synergisms, Drug
D006801	Humans	Members of the species Homo sapiens.	Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D014407	Tumor Cells, Cultured	Cells grown in vitro from neoplastic tissue. If they can be established as a TUMOR CELL LINE, they can be propagated in cell culture indefinitely.	Cultured Tumor Cells,Neoplastic Cells, Cultured,Cultured Neoplastic Cells,Cell, Cultured Neoplastic,Cell, Cultured Tumor,Cells, Cultured Neoplastic,Cells, Cultured Tumor,Cultured Neoplastic Cell,Cultured Tumor Cell,Neoplastic Cell, Cultured,Tumor Cell, Cultured
D015979	Killer Cells, Lymphokine-Activated	Cytolytic lymphocytes with the unique capacity of killing natural killer (NK)-resistant fresh tumor cells. They are INTERLEUKIN-2-activated NK cells that have no MAJOR HISTOCOMPATIBILITY COMPLEX restriction or need for antigen stimulation. LAK cells are used for ADOPTIVE IMMUNOTHERAPY in cancer patients.	LAK Cells,Lymphokine-Activated Killer Cells,Cell, LAK,Cell, Lymphokine-Activated Killer,Cells, LAK,Cells, Lymphokine-Activated Killer,Killer Cell, Lymphokine-Activated,Killer Cells, Lymphokine Activated,LAK Cell,Lymphokine Activated Killer Cells,Lymphokine-Activated Killer Cell