2022, Vol. 26 ›› Issue (26): 4180-4185

Effects of interleukin-10 on alveolar bone remodeling under orthodontic force in a high glucose condition

Han Yu, Li Wenjing, Wu Jie, Cui Zhanqin   

Abstract: BACKGROUND: Orthodontic treatment can change the levels of various cytokines in periodontal tissue, which promotes bone resorption on the tooth pressure side and bone formation on the tooth tension side. Changes in high glucose level and other inflammatory factor levels in diabetic patients induce an imbalance in bone metabolism where absorbed bone tissue is more than that formed.
OBJECTIVE: To observe the effects of interleukin-10 and mechanical stimulation on the expressions of osteoprotegerin and receptor activator of nuclear factor kappa B ligand in human periodontal ligament cells under high glucose environment, and to explore the effect of interleukin-10 on bone remodeling of alveolar bone in diabetic patients under orthodontic force.
METHODS: Human periodontal ligament cells were cultured by tissue explant method. According to the mechanical stimulation the cells received, the cells were divided into stress group (A, B, C, D subgroups) and tension group (E, F, G, H subgroups). Both stress and tension groups included four subgroups (low-glucose DMEM group, low-glucose DMEM group+interleukin-10 group, high-glucose DMEM group, high-glucose DMEM+interleukin-10 group). Cell supernatant was collected at 0, 12, 24, 48, and 72 hours after culture. The expressions of osteoprotegerin and receptor activator of nuclear factor kappa B ligand in the supernatant were detected by ELISA.
RESULTS AND CONCLUSION: Pressure could decrease the expression of osteoprotegerin and increase the expression of receptor activator of nuclear factor kappa B ligand in human periodontal ligament cells, and decreased their ratio. High glucose could promote this process, while the effect of interleukin-10 was opposite to that of high glucose. Tension could increase the expression of osteoprotegerin, decrease the expression of receptor activator of nuclear factor kappa B ligand in human periodontal ligament cells, and increase their ratio. High glucose could inhibit this process, and interleukin-10 had an effect that was opposite to high glucose. To conclude, high glucose environment can reduce the expression of osteoprotegerin, increase the expression of receptor activator of nuclear factor kappa B ligand in human periodontal ligament cells, and decrease their ratio under mechanical stimulation. Whereas, interleukin-10 can antagonize the effect of high glucose.
Key words: high glucose environment, interleukin-10, osteoprotegerin, receptor activator of nuclear factor kappa B ligand, human periodontal ligament cells