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In the developing brain, neural progenitor cells in the ventricular zone (VZ) show a typical migration pattern—interkinetic nuclear migration, in which nuclear position within the VZ is correlated with the cell cycle. However, the mechanisms underlying this regulation remain unclear. To clarify whether the cell cycle progression controls nuclear migration of neural progenitor cells, we determined...
In the developing brain, neural progenitor cells are susceptible to many extrinsic stresses, including DNA damage. We treated pregnant rats with 5-azacytidine (5AzC), a DNA demethylating and damaging agent, to investigate the cellular responses of the fetal brain, focusing on the regulation of proliferation and cell death. 5AzC first induced the accumulation of cells in abnormal mitosis, G2-phase...
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