复发性阿弗他溃疡患者可溶性程序性死亡受体1及可溶性程序性死亡配体1表达与免疫功能的相关性
Soluble programmed death-1 and soluble programmed death ligand 1 protein expression and immune status in patients with recurrent aphthous ulcer
作者:江南, 罗亮, 刘莉, 孙小琴, 姜星, 蔡扬
Author:Jiang Nan, Luo Liang, Liu Li, Sun Xiaoqin, Jiang Xing, Cai Yang.
收稿日期:2016-09-11 年卷(期)页码:2017,35(3):286-286-290
期刊名称:华西口腔医学杂志
Journal Name:West China Journal of Stomatology
关键字:复发性阿弗他溃疡,可溶性程序性死亡受体1,可溶性程序性死亡配体1,免疫,
Key words:recurrent aphthous ulcer,soluble programmed death-1,soluble programmed death ligand 1,immune,
基金项目:国家自然科学基金(81460104)
中文摘要
目的 了解复发性阿弗他溃疡(RAU)患者血清中可溶性程序性死亡受体-1(sPD-1)、可溶性程序性死亡配体-1(sPD-L1)蛋白表达与患者免疫功能状态的相关性,探讨sPD-1/sPD-L1在RAU免疫发病机制中的作用及意义。方法 研究对象为30例RAU患者(轻型18例,重型5例,疱疹型7例)及18例健康人(对照组)。采用流式细胞术检测RAU患者外周血细胞免疫指标(CD3+、CD4+、CD8+、CD19+、CD16++56+),散射比浊法检测RAU患者体液免疫指标(IgG、IgA、IgM、C3、C4),酶联免疫吸附测定RAU患者及健康人血清中sPD-1、sPD-L1蛋白表达,并对sPD-1、sPD-L1表达水平与RAU患者免疫功能状况及临床特征的相关性进行分析。结果 与正常值相比,RAU患者CD4+水平降低,IgM水平增高,差异有统计学意义(P<0.05)。RAU患者的sPD-1及sPD-L1蛋白表达水平高于对照组(P<0.05);进一步分析表明,轻型、重型RAU患者的sPD-1及sPD-L1蛋白表达水平高于对照组(P<0.05),而疱疹型RAU患者与对照组无统计学差异(P>0.05)。RAU患者sPD-1表达量与CD19+、C4存在正相关关系(r1=0.389,P1=0.034;r2=0.382,P2=0.037)。结论 RAU患者以细胞免疫功能低下为主,同时伴有体液免疫功能的紊乱;RAU患者sPD-1、sPD-L1蛋白高表达在一定程度上通过影响PD-1/PD-L1信号通路参与RAU免疫机制的调节,可能在RAU的免疫发病机制中起着一定作用。
英文摘要
ObjectiveThis study aims to investigate the possible role and significance of soluble programmed death-1 (sPD-1)? /soluble programmed death ligand 1 (sPD-L1) in the immune pathogeneses of recurrent aphthous ulcer (RAU).MethodsA total of 30 RAU cases (18 cases of minor RAU, 5 cases of major RAU, and 7 cases of herpetiform ulcers) were enrolled in this study. A total of 18 healthy people served as controls. Lymphocyte subsets (CD3+, CD4+, CD8+, CD19+, and CD16++56+) were investigated by flow cytometric analysis. Humoral immunity (IgG, IgA, IgM, C3, and C4) was explored by nephelometry immunoassay. The sPD-1 and sPD-L1 protein levels in the sera of RAU patients were investigated by enzyme-linked immu-nosorbent assay. The correlations of the sPD-1 and sPD-L1 protein levels with the immune status and clinical characteristics of the RAU patients were analyzed by SPSS 19.0.ResultsThe number of CD4+T cells decreased and the levels of IgM antibodies increased in the RAU patients relative to those in the normal controls (P<0 .05). the spd-1 and spd-l1 protein levels in the rau patients were significantly higher than those in the control group (p<0.05). meanwhile, the spd-1 and spd-l1 protein levels in the patients with minor and major rau were significantly higher than those in the control group (p<0.05). by contrast, no significant difference was found in the patients with herpetiform rau (p>0.05). Positive correlations were noted between the sPD-1 protein level and the CD19+cell frequency or C4 level (r1=0.389, P1=0.034; r2=0.382, P2=0.037).ConclusionCellular immune hypofunction and humoral immunity disorders were found in the RAU patients. The PD-1/PD-L1 signaling pathway, which might be influenced by the involvement of sPD-1 and sPD-L1 proteins to a certain extent, may play some roles in the immune pathogenesis of RAU.
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