Journal of Oral Science Research ›› 2024, Vol. 40 ›› Issue (3): 214-220.DOI: 10.13701/j.cnki.kqyxyj.2024.03.005

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Formononetin Motivates Osteogenic Differentiation of Dental Follicle Stem Cells

TAO Tianyi1, LI Zhengqiang2, ZHENG Xiaoxue3, HANG Bing1*   

  1. 1. Department of Oral and Maxillofacial Surgery, Jilin University Stomatological Hospital, Key Laboratory of Tooth Development and Craniofacial Reconstruction and Regeneration, Changchun 130021, China;
    2. Department of Oral and Maxillofacial Surgery, Stomatology Hospital, Southern Medical University, Guangzhou 510515, China;
    3. Department of Otolaryngology, Oral-Maxillofacial Head and Neck Surgery, Jilin Province Cancer Hospital, Changchun 130012, China
  • Received:2023-11-06 Online:2024-03-28 Published:2024-03-25

Abstract: Objective: To elucidate the effect of formononetin on osteogenic differentiation of human dental follicle stem cells (hDFSCs). Methods: hDFSCs were isolated, cultured, and identified. The cells were treated with different concentrations of formononetin (0, 0.1, 1, and 10 μmol/L) in the culture medium. Cell viability was assessed by CCK-8 assay, crystal violet staining, and live/dead cell fluorescence staining. The cell cytoskeleton was examined using fluorescent staining. The expression of osteogenic-related genes was analyzed through RT-qPCR. Alkaline phosphatase (ALP) activity was assessed to evaluate the osteogenic differentiation of cells. The influence of formononetin on calcium nodule formation during osteogenic differentiation was evaluated using alizarin red staining. Results: hDFSCs exhibited stem cell characteristics. Different concentrations of formononetin had no significant effect on hDFSCs viability. Whereas, 1 μmol/L formononetin facillitated the expression of Runx2, OCN, and Col-Iα1 mRNA. Additionally, 1 μmol/L formononetin enhanced the intracellular ALP activity and the number of calcium nodules. Conclusion: Formononetin at 1 μmol/L promotes the osteogenic differentiation of hDFSCs.

Key words: formononetin, human dental follicle stem cells, osteogenesis differentiation