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Human adipose tissues are an ideal source of stem cells. It is important to find inducers that can safely and effectively differentiate stem cells into functional neurons for clinical use. In this study, we investigate the use of Radix Angelicae Sinensis as an inducer of neuronal differentiation. Primary human adipose-derived stem cells were obtained from adult subcutaneous fatty tissue, then pre-induced with 10%Radix Angelicae Sinensis injection for 24 hours, and incubated in serum-free Dulbecco’s modified Eagle’s medium/Nutrient Mixture F-12 containing 40% Radix Angelicae Si-nensis to induce its differentiation into neuron-like cells. Butylated hydroxyanisole, a common in-ducer for neuronal differentiation, was used as the control. After human adipose-derived stem cells differentiated into neuron-like cells under the induction of Radix Angelicae Sinensis for 24 hours, the positive expression of neuron-specific enolase was lower than that of the butylated hydroxyani-sole-induced group, and the expression of glial fibril ary acidic protein was negative. After they were induced for 48 hours, the positive expression of neuron specific enolase in human adipose-derived stem cells was significantly higher than that of the butylated hydroxyanisole-induced group. Our experimental findings indicate that Radix Angelicae Sinensis can induce human adipose-derived stem celldifferentiation into neuron-like cells and produce less cytotoxicity.
