Directional Notch Trafficking in Sara Endosomes during Asymmetric Cell Division in the Spinal Cord Researchers showed that, during mitosis of neural precursors in zebrafish, directional trafficking of Sara endosomes to one of the daughters can function as a determinant. In asymmetric lineages, where one daughter cell becomes a neuron whereas the other divides again to give rise to two neurons, they found that the daughter that inherits most of the Sara endosomes acquires the latter fate. [Nat Cell Biol] Abstract Valproic Acid Enhances Neuronal Differentiation of Sympathoadrenal Progenitor Cells Scientists studied the epigenetic effects of valproic acid in two culture conditions: suspension conditions aimed to expand adrenomedullary sympathoadrenal progenitors within free-floating chromospheres, and adherent cell cultures optimized to derive neurons. [Mol Psych] Abstract In Vivo Odorant Response Properties of Migrating Adult-Born Neurons in the Mouse Olfactory Bulb In vivo two-photon imaging of retrovirally labelled adult-born juxtaglomerular neurons (JGNs) reveals that ~90% of the cells arrive at the glomerular layer after day post injection (DPI) seven. After arrival, adult-born JGNs are still migrating, but at DPI nine, 52% of them have odor-evoked Ca2+ signals. [Nat Commun] Abstract | Press Release Vascular Endothelial Growth Factor Receptor 3 Controls Neural Stem Cell Activation in Mice and Humans Researchers showed that adult hippocampal neural stem cells (NSCs) express vascular endothelial growth factor receptor (VEGFR) 3 and its ligand VEGF-C, which activates quiescent NSCs to enter the cell cycle and generate progenitor cells. [Cell Rep] Full Article | Graphical Abstract | Press Release Chondroitin Sulfate Proteoglycans Negatively Modulate Spinal Cord Neural Precursor Cells by Signaling through LAR and RPTPσ and Modulation of the Rho/ROCK Pathway Using in vitro models recapitulating the extracellular matrix of spinal cord injury, scientists investigated the direct role of chondroitin sulfate proteoglycans (CSPGs) in modulating the properties of adult spinal cord neural precursor cells (NPCs). They showed that CSPGs significantly decrease NPCs growth, attachment, survival, proliferation and oligodendrocytes differentiation. [Stem Cells] Abstract APP Intracellular Domain Acts as a Transcriptional Regulator of miR-663 Suppressing Neuronal Differentiation Using genome-wide chromatin immunoprecipitation approaches, scientists found that amyloid precursor protein (APP) intracellular domain is specifically recruited to the regulatory regions of several microRNA genes, and acts as a transcriptional regulator for miR-663, miR-3648 and miR-3687 in human neural stem cells. [Cell Death Dis] Full Article The Chromatin-Modifying Protein HMGA2 Promotes Atypical Teratoid/Rhabdoid Cell Tumorigenicity Researchers used lentiviral short-hairpin RNA to suppress high-mobility group atypical teratoid (AT)-hook 2 (HMGA2) in AT/rhabdoid tumor cell lines and found that loss of HMGA2 led to decreased cell growth, proliferation, and colony formation and increased apoptosis. [J Neuropathol Exp Neurol] Abstract | Press Release Identification and Characterization of Secondary Neural Tube-Derived Embryonic Neural Stem Cells In Vitro Researchers addressed whether the embryonic tail contains neural stem cells (NSCs), namely secondary NSCs, with the potential for self-renewal in vitro. Using in vitro neurosphere assays, neurospheres readily formed at the rosette and neural-tube levels, but less frequently at the tail bud tip level. [Stem Cells Dev] Abstract Kuwanon V Inhibits Proliferation, Promotes Cell Survival and Increases Neurogenesis of Neural Stem Cells Researchers screened natural compounds to identify molecules that are effective on neural stem cells (NSCs) cell fate determination. They found that Kuwanon V, which was isolated from the mulberry tree root, increased neurogenesis in rat NSCs. [PLoS One] Full Article Integrin-Associated Protein Promotes Neuronal Differentiation of Neural Stem/Progenitor Cells Researchers established a culture system in which the neurogenic potential of neural stem/progenitor cells (NSPCs) is decreased in a time-dependent manner, so that short-term-cultured NSPCs differentiate into more neurons compared with long-term-cultured NSPCs. [PLoS One] Full Article |