Figure 1
From: Current progress in the derivation and therapeutic application of neural stem cells

NSC properties for therapeutics. NSCs secrete soluble factors, including neurotrophic factors, growth factors and cytokines, thus protecting existing neural cells against damage in situ. Furthermore, they differentiate into neurons, astrocytes and oligodendrocytes via committed progenitor stages to replace lost neural cells. Either neural protection or cell replacement may aid in neurological functional recovery after acute or chronic injury via neural regeneration