Effect of dexamethasone on kininogen production by a rat hepatoma cell line. 1988

T Baussant, and A Michaud, and J Bouhnik, and F Savoie, and F Alhenc-Gelas, and P Corvol
INSERM U36-17, Paris, France.

T Kininogen and High Molecular Weight Kininogen were characterized in the cell culture medium of Fao cells, a highly differentiated cell line derived from the Reuber H35 rat hepatoma. Immunoreactive T Kininogen and High Molecular Weight Kininogen identified by direct and specific RIAs were indistinguishable from standard kininogens. Immunoreactive T Kininogen was further identified by HPLC analysis of T kinin released after trypsin hydrolysis of the cell culture medium. The basal release rate of T kininogen was ten-fold higher than that of High Molecular Weight Kininogen. T Kininogen was not stored within the cells contrary to High Molecular Weight Kininogen. The production of the two kininogens in the cell medium was stimulated by dexamethasone up to five times in a dose-dependent manner. The specific antiglucocorticoid compound RU 38486 did not alter the basal rate of kininogen release by Fao cells, but abolished the stimulation by dexamethasone, indicating that dexamethasone exerts a true glucocorticoid type effect.

UI MeSH Term Description Entries
D007700 Kinetics The rate dynamics in chemical or physical systems.
D007704 Kininogens Endogenous peptides present in most body fluids. Certain enzymes convert them to active KININS which are involved in inflammation, blood clotting, complement reactions, etc. Kininogens belong to the cystatin superfamily. They are cysteine proteinase inhibitors. HIGH-MOLECULAR-WEIGHT KININOGEN; (HMWK); is split by plasma kallikrein to produce BRADYKININ. LOW-MOLECULAR-WEIGHT KININOGEN; (LMWK); is split by tissue kallikrein to produce KALLIDIN. Cystatins, Kininogen,Kininogen,Prekinins,Prokinins,T-Kininogen,Thiostatin,Kininogen Cystatins,T Kininogen
D007705 Kinins A generic term used to describe a group of polypeptides with related chemical structures and pharmacological properties that are widely distributed in nature. These peptides are AUTACOIDS that act locally to produce pain, vasodilatation, increased vascular permeability, and the synthesis of prostaglandins. Thus, they comprise a subset of the large number of mediators that contribute to the inflammatory response. (From Goodman and Gilman's The Pharmacologic Basis of Therapeutics, 8th ed, p588) Kinin
D008114 Liver Neoplasms, Experimental Experimentally induced tumors of the LIVER. Hepatoma, Experimental,Hepatoma, Morris,Hepatoma, Novikoff,Experimental Hepatoma,Experimental Hepatomas,Experimental Liver Neoplasms,Hepatomas, Experimental,Neoplasms, Experimental Liver,Experimental Liver Neoplasm,Liver Neoplasm, Experimental,Morris Hepatoma,Novikoff Hepatoma
D002460 Cell Line Established cell cultures that have the potential to propagate indefinitely. Cell Lines,Line, Cell,Lines, Cell
D003470 Culture Media Any liquid or solid preparation made specifically for the growth, storage, or transport of microorganisms or other types of cells. The variety of media that exist allow for the culturing of specific microorganisms and cell types, such as differential media, selective media, test media, and defined media. Solid media consist of liquid media that have been solidified with an agent such as AGAR or GELATIN. Media, Culture
D003907 Dexamethasone An anti-inflammatory 9-fluoro-glucocorticoid. Hexadecadrol,Decaject,Decaject-L.A.,Decameth,Decaspray,Dexasone,Dexpak,Hexadrol,Maxidex,Methylfluorprednisolone,Millicorten,Oradexon,Decaject L.A.
D004963 Estrenes Unsaturated derivatives of the ESTRANES with methyl groups at carbon-13, with no carbon at carbon-10, and with no more than one carbon at carbon-17. They must contain one or more double bonds. 19-Norandrostenes,19 Norandrostenes
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
D015735 Mifepristone A progestational and glucocorticoid hormone antagonist. Its inhibition of progesterone induces bleeding during the luteal phase and in early pregnancy by releasing endogenous prostaglandins from the endometrium or decidua. As a glucocorticoid receptor antagonist, the drug has been used to treat hypercortisolism in patients with nonpituitary CUSHING SYNDROME. Mifegyne,Mifeprex,Mifégyne,R-38486,R38486,RU-38486,RU-486,ZK-98296,ZK98296,R 38486,RU 38486,RU 486,RU38486,RU486,ZK 98296

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