急性病毒性心肌炎患者Th17细胞作用初步研究

目的:初步探讨急性病毒性心肌炎患者辅助性T细胞(T help,Th)17细胞在其发病中的作用.方法:选择2008年3-11月在我院住院的急性病毒性心肌炎(AVMC)患者13例、扩张型心肌病(DCM)患者18例,采用ELISA法分别检测其外周血Th17细胞分泌的细胞因子白细胞介素(IL)-17和抗心肌抗体(AHA)的表达、三色流式细胞术检测CD4+T细胞中Th17/Th1/Th2细胞亚群的比例、实时定量PCR法检测B细胞表面IL-17R基因水平,同时选取16例健康人为对照(对照组)结果:AVMC和DCM患者Th1细胞亚群(10.7±1.4)%、(5.2±1.1)%]、B细胞总数(21.8±2.1)%、(16.4±1.6)%]及其IL-17R mRNA表达水平(132.4±12、37.5±6.4)较对照组(3.1±0.8)%,(10.9±1.5)%,16.6±5.7]均有升高,但以AVMC患者更为明显(均P<0.01),且AVMC患者外周血IL-17和Th17细胞亚群也有显著增高89.2±11.6,(5.5±2.1)%],Th2细胞无明显变化,AHA阳性率为12/13(92.3%);而DCM患者Th2细胞(6.0±3.2)%]增多超过Th1细胞,IL-17含量和Th17细胞比例与对照组相比差异均无统计学意义,AHA阳性率为10/18(55.6%),表达水平也低于AVMC组.对照组AHA检测均为阴性.结论:Th17细胞可能在AVMC急性炎症和B细胞产生AHA方面均有重要作用.

Preliminary study on the function of Th17 cells in patients with acute viral myocarditis

Objective:To explore the function of Th17 cells in the pathogenesis of acute viral myocarditis(AVMC).Method:Thirty-eight patients in hospital were chose for the study from March to November 2008,including 13 AVMC and 18 DCM.ELISA method was used for measuring the blood IL-17 and anti-heart antibodies(AHA),and 3-color flow cytometric analysis for the frequencies of Th17/Th1/Th2 cell subsets in CD4+T cells as well as real-time PCR for the expression of IL-17R mRNA on B cells.At the same time,16 healthy people...