NLGN3 and glioblastoma: Furthermore, using immunofluorescence staining analysis of NLGN3 in the normal human brain (Figure 4A,B), the optical density (OD) of NLGN3 expression showed in Figure 4C, normal mouse brain (Figure 5A,B), and GBM tissues from surgery (Figure 5C,D), we obtained a similar expression pattern to that of Western blot results.