Differences in the induction of apoptosis after treatment with gamma-irradiation and C2-ceramide

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Publikace nespadá pod Fakultu sportovních studií, ale pod Fakultu informatiky. Oficiální stránka publikace je na webu muni.cz.
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BÁRTOVÁ Eva ŠPANOVÁ Alena

Rok publikování 1999
Druh Článek ve sborníku
Konference Fundamentals for the assesment of risks from environmental radiation
Fakulta / Pracoviště MU

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Obor Biofyzika
Popis Cell death in organisms can be caused by two distinct mechanism: apoptosis and necrosis. These two processes were studied in human leukemic cell lines HL-60 and U-937 after exposure to g-radiation (6 Gy) and C2-ceramide (mM). Apoptosis was induced by C2-ceramide treatment in both cell lines, whereas after g-irradiation it was detected only in U-937 cells, whereas HL-60 cells died by necrosis. The different behaviour of U-937 and HL-60 cells is apparently caused by differences in expression of some protooncogenes in the two cell lines. Two different apoptotic pathways may exist: one, observed only after the exposure to C2-ceramide, is ceramide-induced apoptosis and the other, observed after g-radiation treatment, is p53-ependent
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