RESUMEN
Objective @#To explore and optimize the in vitro primary culture method of astrocytes in neonatal mouse cerebral cortex , which provides a better solution for the in vitro culture of astrocytes.@*Methods @#In order to optimize the in vitro culture method of mouse cerebral cortex astrocytes , 3 ⁃day⁃old C57BL/6J mouse cerebral cortex tissues were taken , meninges and blood vessels were removed , digested by pancreatic enzymes and centrifuged , andhigh⁃glucose dulbecco ′s modified eagle medium (DMEM) was added to form cell suspension , which was purified by differential adhesion method , cross hand method and constant temperature shaking method.The cells were inoculated in poly⁃D ⁃lysine⁃coated culture bottles with different culture densities , and the purity of astrocytes was determined by morphological ob servation and immunofluorescence staining.@*Results @#The cells were inoculated at a density of 5 × 106 cells per bottle with good effect and high activity. The purity of astrocytes reached 99% by using high sugar DMEM medium combined with differential adhesion method , cross hand method and constant temperature shaking method.@*Conclusion @#The primary culture method of astrocytes in mouse cerebral cortex is successfully established and optimized.