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001-es BibID:bibEB00010206
Első szerző:Hunyadi János (bőrgyógyász, kozmetológus, allergológus)
Cím:Platelet-activating factor antagonists (BN 52021 and BN 50730) inhibit tumor necrosis factor-alfa-mediated cytotoxicity on murine L929 tumor cells / János Hunyadi, Anna Szabó Kenderessy, Ernő Duda, Piere Braquet, Attila Dobozy
Dátum:1993
Megjegyzések:Tumor necrosis factor (TNF)-alfa has been described as a mononuclear phagocyte-produced cytotoxin that causes the necrosis and regression of some tumors. The mechanism of the cytotoxicity and the basis for the differential cytotoxic effects of TNF against cells of various origin remains unclear. It has also been reported, that murine TNF stimulates the production of platelet-activating factor (PAF) by cultured peritoneal macrophages, and that PAF enhances TNF production by alveolar macrophages. Furthermore, it is known that the synthesis and release of PAF are inhibited by plasma proteinase inhibitors. This study was devoted to investigate the effects of two specific PAF antagonists (BN 52021 and 50730), and a proteinase inhibitor (aprotinin; Gordox R) on the TNF-induced cytotoxicity in L929 murine fibroblasts. Our present findings indicate that TNF-induced cytotoxicity is inhibited in a dose-dependent manner by the PAF antagonists studied and by the kallikrein inhibitor aprotinin. These findings provide further evidence suggesting that PAF might be involved in the process of the TNF-alfa-induced cytotoxicity of L929 mouse fibroblasts.
Tárgyszavak:idegen nyelvű folyóiratközlemény külföldi lapban
Megjelenés:Molecular Immunology. - 30 :6 (1993), p. 517-519. -
További szerzők:Kenderessy Szabó Anna Duda Ernő Braquet, Pierre Dobozy Attila
Internet cím:DOI
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