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1.
Highlights? Notch signaling defines morphologically distinct hippocampal stem cell populations ? Radial and horizontal hippocampal stem cells depend on canonical Notch signaling ? Different neural stem cell subpopulations respond selectively to neurogenic stimuli ? Aging results in a reversible transition of stem cells to a quiescent state  相似文献   

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Highlights? Diet sensitivity of neural proliferation is a property of developmental timing ? Early diet-dependent neural proliferation determines neural stem cell pool size ? Late diet-independent neural proliferation preserves steroid-induced neurogenesis ? Reveals strategy for adapting the size of the developing brain to nutritional conditions  相似文献   

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Highlights? Stab wound injury and MCAo elicit a profound stem cell response ? Noninvasive brain injury fails to elicit a stem cell response ? SHH is upregulated and required in lesion conditions with a stem cell response ? SHH transducer deletion in astrocytes reduces their proliferative response to injury  相似文献   

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Highlights? MBD1 governs the proliferation and differentiation of neural stem cells (NSCs) ? MBD1 controls the expression of miRNAs, including miR-184, in NSCs ? MiR-184 represses the expression of Numblike ? Numblike rescues the effects of abnormal MBD1 and miR-184 expression  相似文献   

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Highlights? Wnt inhibitor sFRP3 exhibits activity-dependent expression in the adult hippocampus ? sFRP3 maintains quiescence of adult hippocampal radial glia-like neural stem cells ? sFRP3 inhibits maturation, dendritic development, and spinal formation of new neurons ? sFRP3 partially mediates activity-dependent adult hippocampal neurogenesis  相似文献   

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Highlights? VEGFA short isoform supports endothelial/arterial development of the dorsal aorta ? ETO2 maintains high levels of VEGFA medium and long isoforms in the somites ? VEGFA medium isoform instructs the blood program in blood stem cell precursors ? ETO2 specifies blood stem cells in a non-cell-autonomous manner  相似文献   

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Highlights? miR-34a regulates colon cancer stem cell asymmetric division ? miR-34a generates a sharp threshold response ? miR-34a converts Notch signaling into a toggle switch ? Binary Notch levels specify self-renewal versus differentiation  相似文献   

10.
Highlights? Familial and sporadic Alzheimer’s patient iPSC-derived neural cells were analyzed ? Intracellular Aβ oligomers accumulate in lines from some patients ? Aβ oligomer accumulation is associated with ER and oxidative stress ? DHA-alleviated ER and oxidative stresses improve cell viability  相似文献   

11.
Highlights? PU.1 prevents hematopoietic stem cell (HSC) exhaustion ? PU.1 is a master regulator of cell-cycle genes in HSCs ? PU.1 binding mediates chromosome looping in HSCs ? Positive autoregulation via a ?14 kb enhancer sustains PU.1 levels in HSCs  相似文献   

12.
Highlights? Trachea-derived Dpp/Bmp is required for midgut homeostasis ? Dpp expressed in tracheal cells reach intestinal cells through visceral muscles ? Dpp signaling is activated in enterocytes (ECs) in the Drosophila adult midgut ? Dpp signaling stabilizes ECs to restrict intestinal stem cell proliferation  相似文献   

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Highlights? ER stress is induced at the stem cell to TA cell transition in the intestinal epithelium ? ER stress causes loss of stemness in intestinal epithelial stem cells ? Loss of stemness depends on eIF2alpha signaling ? PERK-eIF2alpha signaling is required for normal stem cell differentiation  相似文献   

14.
Highlights? Pax7Hi quiescent stem cells constitute a metabolically low “dormant” subpopulation ? Both Pax7Hi and Pax7Lo quiescent stem cells are serially transplantable ? Only proliferating Pax7Hi cells segregate old DNA strands to the renewing stem cell ? CO-FISH demonstrates that template DNA strand cosegregation engages all chromosomes  相似文献   

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Highlights? Massive neural circuit rewiring between nematodes with divergent feeding behavior ? Striking patterns correlate with known functional differences ? Motor synapse differences indicate a substantial change in information flow ? Correlates of predatory feeding behavior are identified  相似文献   

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Highlights? Identification of a niche for germline and somatic stem cells in a basal chordate ? Stem cells repeatedly migrate between aged or damaged niches into developing niches  相似文献   

17.
Highlights? Pax7+ skeletal satellite cells regenerate muscle in their endogenous environment ? Quiescent satellite cells express the RTK inhibitor Spry1 ? Spry1 is needed for satellite cells to return to quiescence after muscle injury ? Deletion of Spry1 in satellite cells depletes the muscle stem cell pool  相似文献   

18.
Highlights? Time-varying neural activity can support stable stimulus representation ? A network architecture, named FEVER, guarantees stability of representation ? Structural features of sparse FEVER networks agree with existing measurements  相似文献   

19.
Highlights? Understanding cognition requires knowledge of temporal dynamics of neural behavior ? SSVEP may be used to reconstruct orientation response profiles at a subsecond scale ? Provides a metric that can rapidly track information processing in human cortex  相似文献   

20.
Highlights? Canonical ER stress pathways are activated in central neurons during hypoxia/ischemia ? The ER stress endoribonuclease IRE1α degrades the neurovascular guidance cue netrin-1 ? Neuronal-derived netrin-1 activates a reparative proangiogenic program in microglial cells ? Neuronal ER stress prevents reparative angiogenesis in the ischemic neural retina  相似文献   

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