Neuronal induction of mouse mesenchymal stem cells (mouse MSCs) using growth factors.
Before seeding cells, plates were coated overnight with a 10 μg/ml poly-lysine (Sigma) solution in steriled distilled water (see appendix B). After that Neuro2a cells and mouse MSCs were isolated and cultured as previously described. Cells were recovered from subconfluent culture by trypsinization (trypsine/EDTA solution from GIBCO), counted and plate to a 3,000 cells/cm2 density on poly-lysine (Sigma) coated plates. Cells were subsequently incubated with Neurobasal medium (GIBCO) containing B27 supplement, 2 mM L-glutamine, 1% penicillin/streptomycin, 20 ng/ml rhFGF-basic, 20 ng/ml EGF. Medium was replaced every 3 to 4 days for 7 days. Then 0.5 μM all-trans-retinoic acid (RA; Sigma) and 20 ng/ml beta-nerve growth factor (β-NGF; R&D Systems) were added to the medium and cells were cultured for 5 days, with medium changes every 2 to 3 days.
Neuronal induction of mouse mesenchymal stem cells (mouse MSCs) using growth factors. Before seeding cells, plates were coated overnight with a 10 μg/ml poly-lysine (Sigma) solution in steriled distilled water (see appendix B). After that Neuro2a cells and mouse MSCs were isolated and cultured as previously described. Cells were recovered from subconfluent culture by trypsinization (trypsine/EDTA solution from GIBCO), counted and plate to a 3,000 cells/cm2 density on poly-lysine (Sigma) coated plates. Cells were subsequently incubated with Neurobasal medium (GIBCO) containing B27 supplement, 2 mM L-glutamine, 1% penicillin/streptomycin, 20 ng/ml rhFGF-basic, 20 ng/ml EGF. Medium was replaced every 3 to 4 days for 7 days. Then 0.5 μM all-trans-retinoic acid (RA; Sigma) and 20 ng/ml beta-nerve growth factor (β-NGF; R&D Systems) were added to the medium and cells were cultured for 5 days, with medium changes every 2 to 3 days.
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