first, permeabilized with 0.5% Triton X-100 (Beyotime, Shanghai, China) and incubated with
3% bovine serum albumin (BSA, Boster, Wuhan, China) at room temperature. The sections were
incubated at 4°C overnight with the following primary antibodies: rabbit polyclonal
anti-Ki-67 antibody (1:200, Abcam, Cambridge, MA, USA), rabbit polyclonal
anti-doublecortin (DCX) antibody (1:100, Abcam), rabbit polyclonal anti-glial fibrillary
acidic protein (GFAP) antibody (1:500, Abcam), and mouse monoclonal anti-Nestin antibody
(1:100, Abcam). Afterward, the sections were incubated in the corresponding secondary
antibodies, goat anti-rabbit IgG (Alexa Fluor 555, Invitrogen, Carlsbad, CA, USA) or goat
anti-mouse IgG (Alexa Fluor 488, Invitrogen), at 37°C for 1 h, and
4′,6-diamidino-2-phenylindole (DAPI) was used to stain nuclei at room temperature for 10
min. Slides were made for observation and storage. Immunofluorescence was examined by
confocal microscopy (LSM800, ZEISS, Oberkochen, Germany), and images were obtained using
an LSM Image Examiner. The numbers of Nestin-, DCX-, GFAP-, and Ki-67-positive cells were
counted using ImageJ (National Institutes of Health, Bethesda, MD, USA).