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- 2018
三叉神经节TLR4-MyD88信号通路参与大鼠颞下颌关节炎症诱发的神经免疫反应
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Abstract:
摘要 目的:利用大鼠颞下颌关节炎症(temporomandibular joint inflammation,TMJI)模型,检测Toll样受体4 (Toll-like receptor 4,TLR4)及其信号通路在三叉神经节中的动态表达,探究神经系统TLR4信号通路在TMJI及疼痛反应中的作用。方法:颞下颌关节下腔注射完全弗氏佐剂法建立大鼠TMJI动物模型,应用苏木精-伊红(hematoxylin-eosin staining,HE)染色法观察TMJI进展,免疫组织化学染色法检测三叉神经节中TLR4与髓样分化因子88(myeloid differentiation primary response gene 88,MyD88)的表达变化。结果:完全弗氏佐剂诱发TMJI后,三叉神经节神经元TLR4与MyD88的表达显著增加,且两者表达呈低度相关性。结论:三叉神经节 TLR4-MyD88信号通路参与TMJI诱发的神经免疫反应,神经元TLR4的激活可能通过MyD88依赖途径进行信号转导
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