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IFNL4和IL-28B基因多态性检测评估慢性乙型肝炎患者抗病毒治疗应答价值分析*
引用本文:张迎明,申爽,田飞,孙园园.IFNL4和IL-28B基因多态性检测评估慢性乙型肝炎患者抗病毒治疗应答价值分析*[J].实用肝脏病杂志,2019,22(6):828-831.
作者姓名:张迎明  申爽  田飞  孙园园
作者单位:125000 辽宁省葫芦岛市中心医院输血科(张迎明); 检验科(申爽); 中国医科大学盛京医院滑翔院区血液科(田飞); 锦州医科大学附属第一医院血液科(孙园园)
基金项目:*辽宁省自然科学基金资助项目(编号:201602007)
摘    要:目的 探讨检测血干扰素λ4(IFNL4)和白介素-28B(IL-28B)基因多态性对慢性乙型肝炎(CHB)患者抗病毒治疗后应答的评估价值。方法 2015年3月~2017年3月收治的CHB患者140例,均接受聚乙二醇干扰素α-2a治疗12个月。应用市售试剂盒检测外周血IFNL4和IL-28B基因多态性。结果 在治疗结束时,在140例CHB患者中,108例(77.1%)获得应答,32例(22.9%)无应答;应答组IL-28Brsrs8099917位点基因TT型占比为88.9%,显著高于无应答组的68.8%(P<0.05);应答组血清ALT、AST和HBV DNA水平分别为(35.4±3.2) U/L、(38.6±2.1) U/L和(3.8±2.1) lg copies/ml,均显著低于无应答组的(61.5±4.8) U/L、(73.5±3.0) U/L和(5.2±3.1)lg copies/ml(P<0.05);125例IFNL4 TT/TT型患者血清ALT、AST和HBV DNA水平分别为(47.1±2.5) U/L、(49.1±1.6) U/L和(4.5±1.2) lg copies/ml,与15例TT/△G型患者的(48.0±2.1) U/L、(59.4±1.5) U/L和(4.7±1.3)lg copies/ml比,无显著性差异(P>0.05);118例IL-28B TT型患者血清ALT、AST和HBV DNA水平分别为(36.4±2.1) U/L、(38.9±2.7) U/L和(4.0±1.7) lg copies/ml,显著低于22例TG型患者【分别为(59.0±1.4) U/L、(72.1±1.1) U/L和(6.0±2.1) lg copies/ml(P<0.05)。结论 CHB患者IFNL4rs368234815位点基因以TT/TT型和IL-28Brs8099917位点基因以TT型居多,检测IFNL4基因多态性可能对预测抗病毒疗效无明显指导意义,而检测IL-28B基因多态性可能对抗病毒疗效有一定的预测价值。

关 键 词:慢性乙型肝炎  聚乙二醇干扰素α-2a    干扰素λ4    白介素-28B  应答  预测  
收稿时间:2019-02-03

Prediction of response to peginterferon alfa-2a by blood IFNL4 and IL-28B gene polymorphisms in
patients with chronic hepatitis B Zhang Yingming,Shen Shuang,Tian Fei,et al..Prediction of response to peginterferon alfa-2a by blood IFNL4 and IL-28B gene polymorphisms in[J].Journal of Clinical Hepatology,2019,22(6):828-831.
Authors:patients with chronic hepatitis B Zhang Yingming  Shen Shuang  Tian Fei  
Institution:Department of Blood Transfusion,Central Hospital,Huludao 125000,Liaoning Province,China
Abstract:Objective The aim of this study was to explore the prediction of response to peginterferon alfa-2a by blood interferon lambda 4(IFNL4) and interleukin-28B(IL-28B) gene polymorphisms in patients with chronic hepatitis B(CHB). Methods 140 patients with CHB were enrolled in our hospital between March 2015 and March 2017,and all the patients were given peginterferon alfa-2a for antiviral therapy for 12 months. The blood genetic polymorphisms of IFNL4 and IL-28B were assayed by PCR. Results At the end of discontinuation of the regimen,108 patients (77.1%) responded,and 32 (22.9%) didn’ t responded to the anti-viral therapy;the percentage of IL-28Brsrs8099917 type TT was 88.9%,significantly higher than 68.8% (P<0.05) in non-responders;serum ALT,AST and HBV DNA levels in responders were(35.4±3.2) U/L,(38.6±2.1) U/L and (3.8±2.1) lg copies/ml,significantly lower than (61.5±4.8) U/L,(73.5±3.0) U/L and (5.2±3.1) lg copies/ml (P<0.05) in non-responders;serum ALT,AST and HBV DNA levels in 125 patients with IFNL4 type TT/TT were(47.1±2.5)U/L, (49.1±1.6) U/L and (4.5±1.2) lg copies/ml,not significantly different as compared to (48.0±2.1) U/L,(59.4±1.5)U/L and (4.7±1.3) lg copies/ml in 15 patients with type TT/△G (P>0.05);serum ALT,AST and HBV DNA levels in 118 patients with IL-28B type TT were(36.4±2.1) U/L,(38.9±2.7) U/L and(4.0±1.7) lg copies/ml,significantly lower than (59.0±1.4) U/L,(72.1±1.1) U/L and (6.0±2.1) lg copies/ml,respectively,P<0.05] in 22 patients with type TG. Conclusion The majority of CHB patients have genotype TT/TT of IFNL4rs368234815 and genotype TT of IL-28Brs8099917,and the detection of IL-28B gene polymorphism might,and that of IFNL4 polymorphism might not predict the response to anti-viral therapy in patients with CHB,which needs further investigation.
Keywords:Chronic hepatitis B  Peginterferon alfa-2a  Interferon lambda 4  Interleukin-28B  Response  Prediction  
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