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- W2807646957 abstract "In vitro systems allowing maintenance and experimentation on primary astrocyte cultures have been used for decades. Astrocyte cultures are most maintained in serum-containing medium which has been found to alter the morphology and gene profiles of astrocytes. Here, we reported a new serum-free medium for astrocyte culture, which consisted of DMEM and NB media supplemented with insulin and heparin-binding epidermal growth factor-like growth factor (HB-EGF) (SF-I-H medium). Meanwhile FBS-containing (FBS) medium composed of DMEM medium containing 10% FBS were used for comparison study. Cerebral cortex was harvested from postnatal day 1 Wistar rats and brain cells were isolated and seeded to poly-L-lysine coated culture dishes after 15 min differential velocity adherence. Compared with FBS medium, astrocytes in SF-I-H medium were smaller and exhibited process bearing morphologies. MTT assays showed that cell density and proliferation rate were higher in SF-I-H medium than in FBS medium all the time, and flow cytometry analysis revealed that SF-I-H medium promoted cell mitosis in a manner comparable to FBS medium. Consistently, western blot analysis further revealed that insulin and HB-EGF synergistically activated the PI3K/AKT and MAPK/ERK1/2 signaling cascades as FBS. Astrocytes cultured in SF-I-H medium grew faster than FBS medium. Taken together, our results indicated that SF-I-H medium, in which cell morphology was similar with astrocytes in brain, was more effective for astrocyte survival and proliferation than FBS medium, providing a new cell model to study astrocyte functions without the interference of serum." @default.
- W2807646957 created "2018-06-13" @default.
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- W2807646957 date "2018-09-01" @default.
- W2807646957 modified "2023-10-12" @default.
- W2807646957 title "Insulin and heparin-binding epidermal growth factor-like growth factor synergistically promote astrocyte survival and proliferation in serum-free medium" @default.
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- W2807646957 doi "https://doi.org/10.1016/j.jneumeth.2018.06.002" @default.
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