Stimulation of osteogenic differentiation in bone marrow stromal cells via Wnt/β-catenin pathway by Qili Jiegu-containing serum

Han-Bing Song, Ying Jiang, Jia-Xing Liu, Ge-Qiang Wang, Da-Peng Zhang, Yi-Chang Jiang, Shu-Jun Ren, Hong-Peng Liu, Xue-Yan Jiang
Biomedicine & Pharmacotherapy 2018, 103: 1664-1668
A capsule of Qili Jiegu, a traditional Chinese medicine with numerous biological activities, may exert a protective eff ;ect against postmenopausal bone loss. However, it remains unclear whether Qili Jiegu-containing serum regulates the osteogenic diff ;erentiation of bone marrow stromal cells (BMSCs) in vitro. In this study, BMSCs were treated with medium and Qili Jiegu-containing serum over a 14-day period. We found that Qili Jiegu-containing serum promoted the BMSC proliferation and alkaline phosphatase (ALP) activities, as well as stimulated the expression of osteogenic markers and Wnt/β-catenin pathway-related genes, i.e., runt-related transcription factor 2 (Runx2), osteocalcin (OCN), β-catenin and Wnt4a, in BMSCs. Finally, we found that Qili Jiegu-containing serum activated the Wnt/β-catenin pathway. An addition of Dickkopf-related protein-1 (an inhibitor of the Wnt/β-catenin signaling pathway) to the Qili Jiegu-containing serum could decrease the stimulatory osteogenic effect of Qili Jiegu-containing serum on BMSCs. Therefore, Qili Jiegu-containing serum could promote the osteogenic diff ;erentiation of BMSCs, and the potential mechanism may involve regulation of Wnt/β-catenin signaling.

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