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- W2353473630 abstract "Objective To investigate the distrbution of actin and the level of Ca 2+ in macrophages activated with LPS and IFN|γ and study effects of reorganization of actin and the level of Ca 2+ on migration and phagocytosis of macrophages. Methods Rat macrophages were activated with LPS and INF|γ,actin and intracellular free Ca 2+ were labeled with phallacidin and Fura|2,the distribution of actin and the level of Ca 2+ were observed and analyzed with Ca 2+ image analysis system and confocal laser scanning microscope. Results The migrating cell and the phagocytizing cells increased in the activated macrophages.F|actin and the level of Ca 2+ of the activated macrophages increased.There was a front and a back in the migrating cell.Lamellipodia and filopodia protruded from the front.F|actin of the lamellipodium and filopodium was rich.There were stress fibers of F|actin at the bottom of the migrating cells.In the migrating macrophages,the level fo Ca 2+ in the back was high than that in the front.When the migrating cell turned their growth direction,the level of Ca 2+ at the curve increased greatly,especially in its lateral region.When macrophage phagocytized the dead lymphocyte,Ca 2+ in the phagocytizing region increased. Conclusion When macrophages are activated with LPS and IFN|γ,migration and phagocytosis increase greatly.Particular morphologic changes in the distribution of F|actin and the level of intracellular free Ca 2+ occur. [" @default.
- W2353473630 created "2016-06-24" @default.
- W2353473630 creator A5063736918 @default.
- W2353473630 date "2001-01-01" @default.
- W2353473630 modified "2023-09-23" @default.
- W2353473630 title "THE DISTRIBUTION OF ACTIN AND THE LEVEL OF Ca ~(2+ ) IN THE ACTIVATED MACROPHAGES" @default.
- W2353473630 hasPublicationYear "2001" @default.
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