【摘要】 目的研究CD4+CD25+CD127low调节T细胞(Tregs)在非霍奇金淋巴瘤(NHL)外周血中的表达,初步探讨Tregs的表达与NHL常用预后相关因素的关系。方法选择58例NHL患者,流式细胞术检测外周血中CD4+CD25+CD127lowTregs百分比,分析NHL组与健康对照组,初发组与化疗后组Tregs比例有无差异,并将Tregs比例与年龄、性别、临床分期、病理类型、LDH、IPI和β2-微球蛋白等常规预后指标进行相关性分析。结果①B细胞NHL(B-NHL)组CD4+CD25+CD127lowTregs的百分比为(3.89±2.49)%,明显高于健康对照组(P=0.003);②B-NHL组中,侵袭性淋巴瘤(DLBCL,MCL)组与非侵袭性淋巴瘤组(FL和边缘区淋巴瘤等)Tregs表达差异具有统计学意义(P=0.002);T细胞NHL(T-NHL)组中,高度侵袭性淋巴瘤组(T-LBL和NK/TCL组)与侵袭性淋巴瘤组(ALCL和PTLL组)Tregs表达差异具有统计学意义(P=0.006);③B-NHL中,初发组Tregs的百分比为(5.73±2.77)%,明显高于健康对照组(P=0.004)和化疗后组[(2.63±1.33)%,P=0.034],化疗后组与健康对照组相比无统计学意义;④B-NHL初发组患者Tregs比例与患者国际预后指数、β2-微球蛋白和乳酸脱氢酶之间具有相关性(P值分别为0.003,0.003和0.038),但与年龄、性别、PS状态、临床分期、病理类型之间相关性不具有统计学意义。结论 B-NHL患者尤其初发组患者外周血Tregs比例明显升高,检测其水平对于判断NHL的预后可能有一定的临床价值。更多还原

【Abstract】 Objective To evaluate the expression of CD4+CD25+CD127low regulatory T cells(Tregs) in the peripheral blood of the patients with NHL and discuss the relationship between expression of Tregs and prognostics factors of NHL.Methods 58 NHL patients was enrolled for analyzing.Among of them,23 were new patients without any treatment,35 patients received 3 to 8 cycles of chemotherapy,and 16 were normal controls.The expression of CD4+CD25+CD127low Tregs was detected by Flow Cytometry and the proportions of Tregs were analyzed among the groups of the patients before or after chemotherapy and the normal controls.Bivariate Correlation was used to analyze the correlation among the expression of Tregs in the peripheral blood and prognostic factors,such as age,sex,PS state,LDH,β2-MG,IPI,clinical stage and pathology category of the new patients.Results The proportion of Tregs in the peripheral blood of B cell lymphoma(B-NHL) group(3.89±2.49)% was significantly higher than that of normal control(2.52%±0.88%)(P=0.005).In B-NHL,Tregs was signifantly higher in the aggressive NHL(DLBCL,MCL) than that of nonaggressive HHL(FL,MZL)(P=0.002).In T cell lymphoma,Tregs was increased markedly in the highly aggressive T-NHL(T-LBL,NK/TCL) as compared with aggressive T-NHL(ALCL,PTCL)(P=0.006).Tregs expression was significantly higher in newly diagnosed NHL patints than that of normal control(P=0.004) and post-chemotherapy group(P=0.034).The expression of Tregs in peripheral blood was significantly correlated with β2-MG,LDH and IPI of the patients in newly diagnosed patients group(P=0.003,0.003 and 0.038),whereas was not significantly correlated with the age,sex,PS state,LDH,clinical stage and pathology category of the patients.Conclusion The expression of CD4+CD25+CD127low Tregs in peripheral blood of B-NHL group was significantly higher than that of the patiens post-chemotherapy and normal control,which means that it may be an useful prognostic factor for NHL patients.更多还原