Th17细胞在原发免疫性血小板减少症动物模型中的作用  被引量:14

The role of Thl7 cells in immune thrombocytopenia mice models

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作  者:王婷婷[1] 李慧媛[2] 王昭[1] 周泽平[2] 付丽[1] 魏娜[1] 黄大勇[1] 杨仁池[2] 

机构地区:[1]首都医科大学北京友谊医院血液科,北京100050 [2]中国医学科学院、北京协和医学院血液学研究所、血液病医院 实验血液学国家重点实验室

出  处:《中华血液学杂志》2011年第9期592-596,共5页Chinese Journal of Hematology

基  金:国家自然科学基金(81070397);北京市科技新星项目(20088071);天津市应用基础及前沿技术研究计划(09JCYBJC10900,10JCZDJC19700)

摘  要:目的探讨Th17细胞在原发免疫性血小板减少症(ITP)中的作用。方法采用腹腔注射大鼠抗小鼠CD41抗体(MWReg30)的方法诱导BALB/c小鼠产生ITP,之后分离外周血和脾单个核细胞,采用实时定量PCR法检测Th17细胞相关转录因子及细胞因子mRNA的表达水平,同时采用流式细胞术检测外周血和脾细胞内Th17细胞的比例。结果ITP模型小鼠外周血及脾单个核细胞Th17细胞百分比分别为(1.410±0.307)%和(0.220±0.045)%,明显高于正常对照小鼠[分别为(0.457‘0.089)%和(0.0644-0.024)%](P值分别为0.007、0.006)。同时,ITP模型小鼠脾单个核细胞中IL-17F、IL-17A和IL-6mRNA相对表达量分别为2.203±0.427、2.98±0.860和1.949±0.423,明显高于对照组(分别为1.099±0.250、1.005±0.253和0.990±0.110)(P值均〈0.05)。外周血有核细胞IL-21mRNA相对表达量为1.857±0.533,明显高于正常对照(0.824±0.190)(P〈0.05)。结果显示IL-17F和IL-17A的表达呈明显正相关性(r=0.934,p=0.000),IL-17F和IL-17A与IL-6也具有相关性(r=0.598,P=0.001;r=0.619,P=0.000)。结论Th17细胞在ITP发病过程中起重要作用,它至少参与了血小板的清除。Objective To investigate the role of Th17 cells in immune thrombocytopenia (ITP) mice model. Method ITP was induced by daily intraperitoneal injection of anti-platelet membrane CD41 antibody (MWReg30) into BALB/c mice, the mRNA expressions of Th17 cell associated transcription factors and ey-tokines in peripheral blood and spleen mononuclear cells were measured by real-time PCR, and the proportion of Th17 cells by FCM analysis. Results The percentage of Th17 cell was significantly elevated in ITP mice both in splenocyte and peripheral blood as compared with that in normal controls (P 〈 0.01 ). ITP mice had elevated mRNA expressions of IL-17F, IL-17A and IL-6 in splenocyte (P 〈 0.05 ), and of IL-21 in peripheral blood (P 〈 0. 05). There was a positive correlation between IL-17A and IL-17F( r = 0. 934,P = 0. 000), and between IL-17A/IL-17F and IL-6 ( r = 0. 598, P = 0. 001 ; r = 0. 619, P = 0. 000). Conclusions Th17 cell might play an important role in the pathogenesis of ITP, at least involving in the clearance of platelets.

关 键 词:TH17细胞 小鼠模型 免疫性血小板减少症 

分 类 号:R558.2[医药卫生—血液循环系统疾病]

 

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