慢性乙型肝炎患者血清XCL1与免疫损伤的相关性分析

目的 探讨慢性乙型肝炎患者血清XCL1含量与肝损程度及HBV DNA含量的相关性,探讨XCL1表达变化的可能原因.方法 采用酶联免疫吸附法（ELISA）检测血清XCL1浓度;流式细胞仪检测T淋巴细胞亚群;时间分辨荧光分析仪检测乙型肝炎抗原/抗体半定量指标;全自动荧光定量PCR仪检测HBV-DNA载量;全自动生化仪检测肝功能.结果 （1）正常对照组、慢性乙肝（轻度）组、慢性乙肝（中度）组、慢性乙肝（重度）组血清XCL1浓度分别为（8.24±1.94）pg/ml、（10.99±1.94）pg/ml、（12.83±2.59）pg/ml、（13.72±3.13）pg/ml,慢性乙肝（轻、中、重度）组血清XCL1浓度显著高于对照组（P＜0.05）;慢性乙肝（重度）组血清XCL1浓度明显高于慢性乙肝（轻度）组（P＜0.05）;慢性乙肝（中度）组与慢性乙肝（轻、重）度组血清XCL1浓度比较,差异无统计学意义（P＞0.05）;XCL1浓度与ALT、AST、TBIL、DBIL水平呈正相关（r=0.463、0.472、0.413、0.440,P＜0.01）.（2）乙肝病毒低载量组血清XCL1浓度为（11.43±2.01）pg/ml,与高载量组相比差异有统计学意义（P＜0.05）,乙肝病毒低载量组及高载量组血清CD4＋T细胞百分比分别为（41.26±11.33）%、（33.01±5.96）%,两者比较差异有统计学意义（P＜0.05）.结论 XCL1水平与肝脏炎症程度密切相关,可反映HBV感染后机体的免疫状态.

Analyze the relationship between serum XCL1 levels and the immune injury in CHB patients

Objective To explore the relevance between serum XCL1 levels and liver damage in hepatitis B patients.Methods The serum concentration of XCL1 was detected by enzyme linked immu-nosorbent assay (ELISA).Peripheral blood T-cell subsets were detected by flow cytometry (FCM).Liver function was assayed by automatic biochemistry analyzer, hepatitis B antigen/antibody semi-quantitative index was detected by time-resolved fluorescence analyzer, and HBV-DNA load was detected by automatic fluorescence quantitative PCR.Results Serum concentration of XCL1 in control group ( n = 20), mild chronic hepatitis B (CHB) group ( n =29), moderate CHB group ( n =20) and severe CHB group ( n =26)were (8.24±1.94) pg/ml, (10.99±1.94) pg/ml, (12.83 ±2.59) pg/ml, (13.72 ±3.13) pg/ml,respectively.The concentration of XCL1 in all CHB groups was significantly higher than control group ( P＜ 0.05 ).The concentration of XCL1 in severe CHB group was significantly higher than mild CHB group (P ＜ 0.05).XCL1 was positively correlated with ALT, AST, TBIL and DBIL, and the coefficients were (r =0.463、 0.472、 0.413、 0.440, P ＜0.01 ), respectively.The serum XCL1 levels in hepatitis B virus with low load group was lower than hepatitis B virus with high load group.The percentage of CD4 + T in hepatitis B virus with low load group and high load group were (41.26 ± 11.33)%, (33.01 ± 5.96)%,and the difference was statistically significant.Conclusion Serum concentrations of XCL1 were closely related to the degree of liver inflammation in hepatitis B patients.XCL1 may be involved in the process of chronic hepatitis B.