Preparation of sections as previously described [21 (link)]. Membrane breaking was performed by PBS containing 0.1% triton-100 (PBS-T) at room temperature (RT) for 20 min. The sections were then blocked (RT, 1 h) using PBS-T containing 5% BSA. Sections were incubated (4°C, 16 h) using anti-glial fibrillary acidic protein (GFAP) (dilution 1:100, ab207165, Abcam, UK) and anti-S100β (dilution 1:100, ab52642, Abcam). After completion of incubation (RT, 1 h) with secondary antibodies (dilution 1 : 500, Alexa Fluor488, ab150077, Abcam; dilution 1 : 500, Alexa Fluor594, ab150080, Abcam), 4-6-diamidino-2-phenylindole (ZLI-9557, Zhongshanjinqiao Biotech, PRC) incubation (RT, 5 min) was performed. The staining was observed under a fluorescence microscope (BX-60, Olympus, JPN) and images were taken. The fluorescence intensity was analyzed using ImageJ 8.0, National Institutes of Health.