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• W2897838419 abstract "ABSTRACT The ventricular-subventricular zone (V-SVZ) of the forebrain is the source of neurogenic stem/precursor cells for adaptive and homeostatic needs throughout the life of most mammals. Here, we report that Suppressor of Fused (SUFU) plays a critical role in the establishment of the V-SVZ at early neonatal stages by controlling the proliferation of distinct subpopulations of stem/precursor cells. Conditional deletion of Sufu in radial glial progenitor cells (RGCs) at E13.5 resulted in a dramatic increase in the proliferation of Sox2+ Type B cells, as well as Gsx2+ ventral forebrain derived transit amplifying precursor cells (TACs). In contrast, we found a significant decrease in Tbr2+ dorsal forebrain derived TACs indicating that innate differences between dorsal and ventral forebrain derived Type B cells influence Sufu function. However, most precursors failed to survive and accumulated in the dorsal V-SVZ, demonstrating that precursors are unable to transition into functional differentiated progenies. These defects were accompanied by reduced Gli3 expression, yet despite reduced Gli3 levels, activation of Sonic hedgehog (Shh) signaling did not occur implying that the Sufu-Gli3 regulatory axis may influence other signaling pathways in the neonatal dorsal V-SVZ. These data suggest that Sufu plays a critical role in controlling Gli3 function in the establishment and survival of functional stem/precursor cells in the postnatal dorsal V-SVZ. SUMMARY STATEMENT Conditional deletion of Sufu cause dramatic expansion of neural stem/precursor cells in the neonatal ventricular-subventricular (SVZ) zone. This defect occurs through a Gli3-dependent mechanism that results in the downregulation of Shh signaling." @default.
• W2897838419 created "2018-10-26" @default.
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• W2897838419 date "2018-10-09" @default.
• W2897838419 modified "2023-10-16" @default.
• W2897838419 title "Suppressor of Fused controls the proliferation of postnatal neural stem and precursor cells via a Gli3-dependent mechanism" @default.
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• W2897838419 doi "https://doi.org/10.1101/438705" @default.
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