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- 2016
NLRP3/Caspase-1炎性体通路在大鼠根尖周炎中表达的研究
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Abstract:
摘要 目的:研究大鼠实验性根尖周炎中NLRP3/Caspase-1炎性体通路的表达。方法:30只大鼠双侧下颌第一磨牙开髓后封入PBS缓冲液棉球,玻璃离子封闭髓腔,分别于开髓后0、7、14、21d和28d处死大鼠,分离双侧下颌骨。组织学处理后HE染色观察根尖周组织炎症状况,免疫组织化学染色和实时荧光定量PCR分别检测NLRP3、Caspase-1和IL-1β的表达情况。结果:NLRP3、Caspase-1和IL-1β在炎性根尖周组织中均有表达;与对照组相比,三者表达水平均明显增高,差异有统计学意义(P<0.05);其中Caspase-1和IL-1β阳性细胞数与NLRP3阳性细胞数呈显著正相关(P<0.01)。结论:根尖周组织中存在着NLRP3/Caspase-1炎性体通路,提示该通路在根尖周组织固有免疫中可发挥重要作用。 [关键词]炎性体NLRP3Caspase-1根尖周
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