Stimulation of DNA synthesis in cultured mouse peritoneal macrophages after fusion injection of macrophage growth factor |
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Authors: | W Wille K Willecke |
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Institution: | Institut für Genetik der Universität zu Köln, Weyertal 121,5000 Köln 41, Germany |
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Abstract: | Macrophage growth factor (MGF), when injected into cultivated mouse peritoneal macrophages by Sendai virus-fusion with loaded human erythrocyte ghosts, induced macrophage DNA synthesis within 40 h. DNA synthesis was observed in approx. 10% of the injected cells. Fusion products between macrophages and red cell ghosts were identified by co-injection of 125I-labelled human serum albumin. These studies suggest that the mechanism of the physiological effect of MGF may depend on the endocytosis of at least part of the MGF molecule. |
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