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  • Title: A study on the nuclear extrusion of mammalian erythroblast.
    Author: Mori M.
    Journal: Acta Med Okayama; 1975 Jun; 29(3):161-9. PubMed ID: 127510.
    Abstract:
    A study was carried out to clarify the mechanism of nuclear extrusion of mammalian erythroid cells by observing erythroblasts of rabbit under various conditions in vitro. The animals were made anemic by phenylhydrazine injection and erythroblasts were obtained from the peripheral blood and observed morphologically after a certain time of incubation. After two hour incubation at 37 degrees C, about 50% of erythroblasts were denucleated. The nuclear extrusion was remarkably suppressed by the inhibitor for electron transport system or by uncouplers for oxidative phosphorylation. It was also arrested by the inhibitor of cell movement, like cytochalasin B. In contrast, monoiodo-acetic acid, ouabain and colchicine hardly inhibited the nuclear extrusion. The observations indicated that the nuclear extrusion of mammalian erythroblast is an energy-dependent process in connection with the function of contractile microfilamentous system susceptible to cytochalasin B.
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