Enhancement of experimental metastatic ability by tumor necrosis factor-alpha alone or in combination with interferon-gamma. 1990

P L Lollini, and C De Giovanni, and G Nicoletti, and A Bontadini, and P L Tazzari, and L Landuzzi, and K Scotlandi, and P Nanni
Istituto di Cancerologia, Università di Bologna, Italy.

The effects of recombinant tumor necrosis factor-alpha (TNF-alpha) and interferon-gamma (IFN-gamma) on B16 mouse melanoma experimental metastatic ability and major histocompatibility complex (H-2b) antigens expression were studied. B16 cells exposed in vitro to TNF-alpha had an increased H-2 expression and were more metastatic than untreated cells. The simultaneous treatment with TNF-alpha and IFN-gamma amplified the enhancement of experimental metastasis and all other effects obtained with TNF-alpha alone. The B16 clone B78H1, selectively resistant to H-2 induction and to enhancement of metastatic ability by IFN-gamma, was not affected by treatment with TNF-alpha and with TNF-alpha + IFN-gamma. These findings contribute to a better understanding of the pleiotropic effects of TNF, some of which can have opposing actions in the complex tumor-host relationships.

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
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
D008297 Male Males
D008546 Melanoma, Experimental Experimentally induced tumor that produces MELANIN in animals to provide a model for studying human MELANOMA. B16 Melanoma,Melanoma, B16,Melanoma, Cloudman S91,Melanoma, Harding-Passey,Experimental Melanoma,Experimental Melanomas,Harding Passey Melanoma,Melanomas, Experimental,B16 Melanomas,Cloudman S91 Melanoma,Harding-Passey Melanoma,Melanoma, Harding Passey,Melanomas, B16,S91 Melanoma, Cloudman
D008810 Mice, Inbred C57BL One of the first INBRED MOUSE STRAINS to be sequenced. This strain is commonly used as genetic background for transgenic mouse models. Refractory to many tumors, this strain is also preferred model for studying role of genetic variations in development of diseases. Mice, C57BL,Mouse, C57BL,Mouse, Inbred C57BL,C57BL Mice,C57BL Mice, Inbred,C57BL Mouse,C57BL Mouse, Inbred,Inbred C57BL Mice,Inbred C57BL Mouse
D009362 Neoplasm Metastasis The transfer of a neoplasm from one organ or part of the body to another remote from the primary site. Metastase,Metastasis,Metastases, Neoplasm,Metastasis, Neoplasm,Neoplasm Metastases,Metastases
D004305 Dose-Response Relationship, Drug The relationship between the dose of an administered drug and the response of the organism to the drug. Dose Response Relationship, Drug,Dose-Response Relationships, Drug,Drug Dose-Response Relationship,Drug Dose-Response Relationships,Relationship, Drug Dose-Response,Relationships, Drug Dose-Response
D006183 H-2 Antigens The major group of transplantation antigens in the mouse. H2 Antigens,Antigens, H-2,Antigens, H2,H 2 Antigens
D000818 Animals Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. Animal,Metazoa,Animalia
D014409 Tumor Necrosis Factor-alpha Serum glycoprotein produced by activated MACROPHAGES and other mammalian MONONUCLEAR LEUKOCYTES. It has necrotizing activity against tumor cell lines and increases ability to reject tumor transplants. Also known as TNF-alpha, it is only 30% homologous to TNF-beta (LYMPHOTOXIN), but they share TNF RECEPTORS. Cachectin,TNF-alpha,Tumor Necrosis Factor Ligand Superfamily Member 2,Cachectin-Tumor Necrosis Factor,TNF Superfamily, Member 2,TNFalpha,Tumor Necrosis Factor,Cachectin Tumor Necrosis Factor,Tumor Necrosis Factor alpha

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