Berberine promotes osteogenic differentiation of bone marrow mesenchymal stem cells in a high-glucose environment

doi:10.12307/2024.150

Abstract

Abstract: BACKGROUND: The implant osseointegration rate of patients with diabetes is low, and the failure rate is high, which seriously affects the quality of life. It is urgent to improve the implant osseointegration of patients with diabetes by effective means to elevate the success rate. Exploring the effect of berberine on the osteogenic differentiation of bone marrow mesenchymal stem cells under a high-glucose environment and its specific mechanism will provide effective theoretical support for solving the above problems.
OBJECTIVE: To explore the effect of natural extract berberine on the osteogenic differentiation of rat bone marrow mesenchymal stem cells under the high-glucose microenvironment.
METHODS: Bone marrow mesenchymal stem cells of SD rats were cultured by the whole bone marrow adherence method. CCK-8 assay was used to detect the effects of different concentrations of berberine on the proliferation of bone marrow mesenchymal stem cells under the high-glucose environment and to screen out the optimal berberine concentration. The expressions of Runx2 and Osx were detected by alkaline phosphatase activity, alicarin red staining and PCR to determine the effect of berberine on osteogenic differentiation of bone marrow mesymal stem cells under the high-glucose environment. To further explore the underlying mechanism, we introduced the AMPK-specific inhibitor Dorsomorphin and used a DCFH-DA reactive oxygen species fluorescent probe to examine reactive oxygen species levels. The p-AMPK expression was also determined by western blot assay.
RESULTS AND CONCLUSION: (1) 10 µmol/L was the optimal concentration of berberine to promote bone marrow mesenchymal stem cell proliferation. (2) Alberberine promoted alkaline phosphatase viability of bone marrow mesenchymal stem cells and mineralized nodule formation in a high-glucose microenvironment. (3) Alberberine promoted the expression of Runx2 and OSx in a high-glucose microenvironment. (4) Alberensine effectively inhibited the reactive oxygen species level of bone marrow mesenchymal stem cells in a high-glucose environment. (5) The effects of berberine on promoting bone marrow mesenchymal stem cell osteogenesis and inhibition of reactive oxygen species were reversed by the AMPK inhibitor. (6) Berberine activated AMPK and promoted p-AMPK expression. (7) The above results indicate that berberine (10 µmol/L) promotes the osteogenic differentiation of bone marrow mesenchymal stem cells in a high-glucose environment by activating AMPK and reducing intracellular reactive oxygen species levels.

Key words: berberine, bone marrow mesenchymal stem cell, high-glucose microenvironment, cell proliferation, osteogenic differentiation, AMPK, reactive oxygen species

CLC Number:

R459.9|R318|R783.4

Gou Qiutong, Luo Wenhao, Wang Pin, Lan Yuyan, Liu Min, Huang Haixia. Berberine promotes osteogenic differentiation of bone marrow mesenchymal stem cells in a high-glucose environment[J]. Chinese Journal of Tissue Engineering Research, 2024, 28(19): 2974-2980.

Figures/Tables 12

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