摘要: |
目的 探讨临床慢性根尖周炎病变组织中NLRP3/Caspase-1炎性体通路的表达情况。方法 收集2013年10月至2014年4月在大连医科大学附属口腔医院就诊的因慢性根尖周病需行根尖外科手术治疗或需拔牙的患者20例,取患者牙周组织作为根尖周炎病组;正畸治疗需要拔除的健康恒牙患者,搔刮拔除后的牙齿根尖周组织,作为对照组。通过Real-time qPCR及免疫组织化学的方法检测NLRP3、Caspase-1、 IL-β mRNA及蛋白的表达情况,并对NLRP3、Caspase-1、 IL-β的蛋白表达进行相关性分析。结果 NLRP3、Caspase-1及IL-1β在根尖周炎病组中的mRNA及蛋白表达量均明显高于对照组,差异有显著性意义(P<0.05)。根尖周炎病组织内NLRP3、Caspase-1、IL-β阳性细胞主要位于中性粒细胞、淋巴细胞及浆细胞中,其中NLRP3、Caspase-1主要表达于胞浆,IL-1β可表达于胞浆与胞核。相关性分析结果显示,NLRP3与Caspase-1的表达存在着中度相关性, r=0.733;IL-1β与NLRP3及Caspase-1的表达存在着低度相关性, r=0.378及r=0.341, P均<0.05。结论 NLRP3炎性体在人的慢性根尖周炎症中表达增高。 |
关键词: 慢性根尖周炎 NLRP3 Caspase-1 |
DOI:10.11724/jdmu.2016.06.04 |
分类号:R781.1 |
基金项目:基金项目:国家自然科学基金项目(81171538);辽宁教育厅科学研究一般项目(L2015154) |
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Expression of NLRP3/Caspase-1 inflammasome pathway in clinical chronic periapical periodontitis |
WANG Li-na, YE Dan-dan, WANG Jiao-jiao, AO Xiang, LIU Qi-cheng, NIU Wei-dong
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Department of Oral Medicine, Dalian Medical University, Dalian 116044,China
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Abstract: |
Objective To investigate the expression of NLRP3 inflammasome in clinical chronic periapical periodontitis, and provided the clinical application basis for next research.Methods We collected the apical lesions of chronic periapical periodontitis in patients who need surgery or tooth extraction, and used the method of Real-time qPCR and immunochemistry to detecte the expression of NLRP3 inflammasome.Results NLRP3, Caspase-1 and IL-1β in human periapical periodontitis expression was significantly higher than the control group (P<0.05). Correlation analysis showed that, NLRP3 and Caspase-1 expression are associated with a modest, the expression of IL-1β,Caspase-1 and NLRP3 had low correlation.Conclusion NLRP3 inflammasomes involved in human chronic periapical inflammation. |
Key words: chronic periapical periodontitis NLRP3 Caspase-1 |