The transient expression of 5-HTT in the developing DRG (16,41) was also recapitulated in both eDRG and aDRG NSCs. Figure 4G and H show the presence of 5-HTT on neuronal-like cells derived from NSCs. The 5-HTT immunostaining was seen on differentiated NSCs along the processes decorated with spine- and varicosity-like protrusions. A detailed comparison of the multi-potentiality of aDRG and eDRG NSCs from our in vitro characterization is summarized in Table 2.