口腔医学 ›› 2026, Vol. 46 ›› Issue (5): 350-355.doi: 10.13591/j.cnki.kqyx.2026.05.005

• 基础与临床研究 • 上一篇    下一篇

抑制MIF活性对大鼠种植体周围炎骨吸收的影响

高菁哲, 曹嘉骏, 李海旭, 孙宇()   

  1. 哈尔滨医科大学附属第一医院口腔修复科哈尔滨医科大学口腔医学院黑龙江哈尔滨 (150001)
  • 收稿日期:2025-06-23 出版日期:2026-05-28 发布日期:2026-05-15
  • 通讯作者: 孙宇 Tel:(0451)85553231 E-mail:sunyu20060212@126.com
  • 基金资助:
    黑龙江省自然科学基金(PL2024H064)

The effect of inhibiting MIF activity on bone resorption in rat peri-implantitis

GAO Jingzhe, CAO Jiajun, LI Haixu, SUN Yu()   

  1. Department of ProsthodonticsThe First Affiliated Hospital of Harbin Medical University & School of Stomatology,Harbin Medical UniversityHarbin 150001, China
  • Received:2025-06-23 Online:2026-05-28 Published:2026-05-15

摘要:

目的 探究抑制巨噬细胞移动抑制因子(macrophage migration inhibitory factor,MIF)活性对种植体周围炎骨吸收的影响。方法 将20只雄性SD大鼠随机分为空白对照组、炎症对照组、炎症治疗组、炎症溶剂组4组。拔除每只大鼠双侧第一磨牙后,即刻植入钛合金皮质骨螺钉。所有炎症组大鼠以丝线结扎种植体的方式构建种植体周围炎模型。随后,空白对照组与炎症对照组大鼠的种植体周围牙龈注射生理盐水,炎症治疗组注射MIF抑制剂ISO-1,炎症溶剂组注射二甲基亚砜(dimethyl sulfoxide,DMSO)溶液。Micro-CT扫描观察各组种植体周围骨吸收情况,分析骨密度及骨体积分数;HE染色观察种植体周围组织的组织学表现;免疫组化分析IL-6、IL-10的蛋白表达水平。结果 与空白对照组相比,3个炎症组的骨密度及骨体积分数明显降低(P<0.05);HE染色可见炎细胞浸润及纤维结缔组织形成;IL-6、IL-10的表达水平升高(P<0.05);在局部抑制MIF的活性后,与炎症对照组和炎症溶剂组相比,炎症治疗组的骨密度及骨体积分数增加,IL-6的表达降低,IL-10的表达增加(P<0.05)。结论 抑制MIF活性可减轻种植体周围炎的骨吸收,其机制可能与IL-6表达降低同时IL-10表达升高有关。

关键词: 种植体周围炎, 巨噬细胞移动抑制因子, ISO-1, IL-6, IL-10

Abstract:

Objective To investigate the effect of inhibiting macrophage migration inhibitory factor(MIF) activity on bone resorption in rat peri-implantitis. Methods Twenty male Sprague-Dawley(SD) rats were randomly divided into four groups: blank control group,inflammation control group,inflammation treatment group,and inflammation solvent group. After extracting the bilateral first molars of each rat,titanium alloy cortical bone screws were immediately implanted. In all inflammation groups,peri-implantitis models were constructed by ligating the implants with silk thread. Subsequently,the peri-implant gingiva of rats in the blank control group and inflammation control group was injected with normal saline; the inflammation treatment group was injected with MIF inhibition ISO-1,and the inflammation solvent group was injected with dimethyl sulfoxide(DMSO) solution. Micro-CT scanning was used to observe the peri-implant bone resorption,and analyze bone mineral density(BMD) and bone volume fraction(BV/TV). HE staining was performed to observe the histological manifestations of peri-implant tissues. Immunohistochemical analysis was used to detect the protein expression levels of IL-6 and IL-10. Results Compared with the blank control group,the BMD and BV/TV in the three inflammation groups were significantly decreased(P<0.05); HE staining showed inflammatory cell infiltration and fibrous connective tissue formation; the expression levels of IL-6 and IL-10 were increased(P<0.05). After local inhibition of MIF activity,compared with the inflammation control group and inflammation solvent group,the inflammation treatment group showed increased BMD and BV/TV,decreased IL-6 expression,and increased IL-10 expression(P<0.05). Conclusion Inhibition of MIF activity can alleviate bone loss in peri-implantitis,and the mechanism may be related to the decrease in IL-6 expression and the increase in IL-10 expression.

Key words: peri-implantitis, macrophage migration inhibitory factor, ISO-1, IL-6, IL-10

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