Endogenous neural stem cell proliferation and differentiation regulatory pathway

The endogenous neural stem cell (NSC) proliferation and differentiation regulatory pathway represents the collective signaling mechanisms that govern the activation and lineage commitment of resident stem cells in the adult brain, primarily located in the subventricular zone and the hippocampal subgranular zone (Ming & Song, 2011). This pathway integrates various extrinsic signals—including Wnt, Notch, Sonic Hedgehog, and growth factors like BDNF—to regulate the transition of NSCs from quiescence to active neurogenesis (Lie et al., 2005). In therapeutic contexts, this pathway is targeted to stimulate innate brain repair following injury or in neurodegenerative conditions such as Alzheimer's and Parkinson's diseases (Winner & Winkler, 2015). Because it is a complex biological process involving multiple molecular nodes, pharmacological intervention often targets specific receptors or downstream effectors, such as the AMPK pathway via Metformin, to promote the birth of functional neurons (Wang et al., 2012). However, therapeutic development must carefully balance the induction of repair with the risks of stem cell exhaustion or the potential for malignant transformation into gliomas (Lindvall & Kokaia, 2010).

Other names

Neural stem cell regulatory pathwayNSC proliferation and differentiation pathwayEndogenous neurogenesis pathwayAdult neurogenesis signaling network

Modulation of intracellular signaling cascades, including Wnt/beta-catenin, Notch, and Sonic Hedgehog (Shh), to stimulate the activation of quiescent neural stem cells, promote their expansion, and direct their differentiation into functional neurons or glia (Ming & Song, 2011; Lie et al., 2005).