慢性乙型肝炎患者外周血CD4+CD25+调节性T细胞数量与肝脏疾病慢性化进展关系的研究

目的探讨慢性乙型肝炎患者(chornic hepatitis B,CHB)外周血中CD4+CD 25+调节性T细胞(regulatory T cells,Treg)的数量与肝脏慢性疾病进展的关系。方法流式细胞术检测抗病毒治疗后45例CHB患者(根据B超将其分为3组,其中B超提示肝脏无异常改变的单纯CHB组15例,提示慢性肝病改变的CHB慢性肝病组15例,提示肝硬化改变的CHB肝硬化组15例)与B超均提示肝脏无异常改变的15例慢性乙型肝炎病毒携带者(asymptomic HBV carriers,ASCs)以及15例健康成年人(normal control,NC)对照外周血中CD4+CD25+Treg的变化,并分析Treg与患者年龄,HBeAg定量,ALT、AST、TGF-β1水平的相关性。结果外周血中CD4+CD25+Treg占CD4+淋巴细胞的比例在抗病毒治疗后单纯CHB组为(4.03±1.36)%,与NC组(4.02±1.14)%相比差异无显著性(t=0.0223,P>0.05),与ASCs组(5.26±1.25)%相比显著减少(t=-2.2872,P<0.05);CHB慢性肝病组为(5.65±2.01)%,CHB肝硬化组为(5.32±1.47)%,与NC组、单纯CHB组比显著增高(t值分别为3.0351、3.0129、2.4269、2.4046,均P<0.05)与ASCs组相比差异无显著性(t值分别为0.7257、0.1174,均P>0.05);CHB慢性肝病、肝硬化组间相比差异无显著性(t=0.6083,P>0.05)。Treg的数量与年龄、AST、TGF-β1水平呈正相关(r分别为0.327、0.324、0.306,P分别为0.004、0.005、0.008)。结论 Treg在低水平AST时CHB患者外周血中的数量的增高对抗病毒治疗后的CHB患者更能反映其肝脏慢性损伤程度,Treg可能参与了慢性HBV感染后肝脏疾病慢性化进展的过程。

Association between CD4+CD25+Regulatory T Cells in Peripheral Blood of Patients with HBV DNA Resolved Chronic Hepatitis B and Different Chronic Liver Process After Treated with NAs

Objective To investigate the association between the frequency of circulating CD4+CD25+ regulatory T cells(Treg) in patients of HBV DNA resolved chronic hepatitis B and different chronic liver disease process after treated with NAs.Methods Tregs in peripheral blood from 45 HBV resolved CHB patients including 15 CHB patients with no anomaly liver changes in B-mode ultrasound,15 patients with chronic liver disease changes in B-mode ultrasound and 15 patients with liver cirrhosis in B-mode ultrasound were assa...