
Keywords: CDK4; cyclin-dependent kinase4; CNS; central nervous system; DMEM; Dulbecco's modified essential medium; EDTA; ethylenediaminetetraacetic acid; EdU; 5-erhynyl-2â²-deoxyuridine; FBS; fetal bovine serum; FITC; fluorescein isothiocyanate; GFAP; glial fibr