Effect of ginsenoside Rg1 on proliferation and neural phenotype differentiation of human adipose-derived stem cells in vitro

Fang-Tian Xu, Hong-Mian Li, Qing-Shui Yin, Shi-En Cui, Da-Lie Liu, Hua Nan, Zhi-An Han, Kun-Ming Xu
Canadian Journal of Physiology and Pharmacology 2014, 92 (6): 467-75

AIMS: To investigate whether ginsenoside Rg1 can promote neural phenotype differentiation of human adipose-derived stem cells (hASCs) in vitro.

METHODS: hASCs were isolated from lipo-aspirates, and characterized by specific cell markers and multilineage differentiation capacity after culturing to the 3rd passage. Cultured hASCs were treated with neural inductive media alone (group A, control) or inductive media plus 10, 50, or 100 μg/mL ginsenoside Rg1 (groups B, C, and D, respectively). Cell proliferation was assessed by CCK-8 assay. Neuron specific enolase (NSE) and microtubule-associated protein-2 (MAP-2) levels were measured by Western blot. mRNA levels of growth associated protein-43 (GAP-43), neural cell adhesion molecule (NCAM), and synapsin-1 (SYN-1) were determined by real-time PCR.

RESULTS: Ginsenoside Rg1 promoted the proliferation of hASCs (groups B, C, and D) and resulted in higher expression of NSE and MAP-2 compared with the control group. Gene expression levels of GAP-43, NCAM, and SYN-1 in the test groups were higher than that in thw control. The results displayed a dose-dependent effect of ginsenoside Rg1 on cell proliferation and neural phenotype differentiation.

CONCLUSION: This study indicated that ginsenoside Rg1 promotes cell proliferation and neural phenotype differentiation of hASCs in vitro, suggesting a potential use for hASCs in neural regeneration medicine.

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