Words similar to nestin
Example sentences for: nestin
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Chenn and Walsh recently created transgenic mice in which β-catenin stabilized by an amino-terminal truncation was expressed in subventricular zone precursor cells in utero under control of the nestin promoter [ 22 ] . Brains from these transgenic embryos contained increased numbers of periventricular neuroepithelial cells because a greater number of the precursors re-entered the cell cycle after mitosis.
In stage 3 cultures, Nestin and Ki67 expression was nearly extinguished (see Figure 2), while expression of En1, ngn3, and Hb9 increased (see Figure 1B and 1C).
They were also negative for neuroectodermal, epithelial, and muscle cell markers including nestin, pancytokeratin, and desmin (data not shown).
Recent experiments by Fults and colleagues support the idea that stabilized β-catenin expression in the postnatal CNS is not sufficient to initiate tumor formation [ 36 ] . Using the RCAS-TVA system they showed that overexpression of c-myc, but not of activated β-catenin, promoted the proliferation of neural progenitor cells in vivo and in vitro . In their in vivo experiments expression was initiated in nestin positive cells postnatally via injection of β-catenin stabilized by a point mutation in codon 37.
After 2 wk at stage 2, NS-derived cells remained in clusters (see Figure 1A), but Nestin and Ki67 were expressed in fewer than 35% of cells (see Figure 2), indicating possible differentiation of cells toward lineage-restricted fates.