Thymine DNA glycosylase regulates cell-cycle-driven p53 transcriptional control in pluripotent cells

Revealing the effects of the cell cycle on cellular uptake of nano-drugs at single particle level

We analyzed the dynamic parameters for nano-drug entry into cells in different stages of the cell cycle, verifying the effects of stiffness and membrane receptor expression level. The cell cycle synchronization inhibitor and cell line were also considered. This report will provide insights into the enhancement of cell entry efficiency of nano-drugs by regulating the cell cycle.

The molecular basis of cell memory in mammals: The epigenetic cycle

Cell memory refers to the capacity of cells to maintain their gene expression program once the initiating environmental signal has ceased. This exceptional feature is key during the formation of mammalian organisms, and it is believed to be in part mediated by epigenetic factors that can endorse cells with the landmarks required to maintain transcriptional programs upon cell duplication. Here, we review current literature analyzing the molecular basis of epigenetic memory in mammals, with a focus on the mechanisms by which transcriptionally repressive chromatin modifications such as methylation of DNA and histone H3 are propagated through mitotic cell divisions. The emerging picture suggests that cellular memory is supported by an epigenetic cycle in which reversible activities carried out by epigenetic regulators in coordination with cell cycle transition create a multiphasic system that can accommodate both maintenance of cell identity and cell differentiation in proliferating stem cell populations.