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Journals and Conferences
Tet proteins and DNA demethylation are key regulators of embryonic stem cells, but their roles in development and tissue stem cells remain unclear. In this issue, Zhang et al. (2013) show that Tet1 regulates adult hippocampal neurogenesis by controlling progenitor proliferation, and Tet1 deficiency generates defects in learning and memory.
Adult hippocampal neural stem cells generate newborn neurons throughout life due to their ability to self-renew and exist as quiescent neural progenitors (QNPs) before differentiating into transit-amplifying progenitors (TAPs) and newborn neurons. The mechanisms that control adult neural stem cell self-renewal are still largely unknown. Conditional knockout… (More)
Transcription factors bind to specific DNA sequences and control the transcription rate of nearby genes in the genome. This activation or repression of gene expression is further potentiated by epigenetic modifications of histones with active and silent marks, respectively. Resident adult stem cells in the hematopoietic system, skin, and brain exist in a… (More)