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中华实验和临床感染病杂志(电子版) ›› 2017, Vol. 11 ›› Issue (01) : 45 -50. doi: 10.3877/cma.j.issn.1674-1358.2017.01.010

临床论著

青岛地区宿主IL-28B基因多态性及HCV基因型对慢性丙型肝炎抗病毒疗效的影响
史昌河1, 宋秀云1, 魏阳2, 周永1,()   
  1. 1. 266033 青岛市,山东省青岛市第六人民医院五病区
    2. 277000 枣庄市,山东省枣庄市立医院
  • 收稿日期:2015-11-27 出版日期:2017-02-15
  • 通信作者: 周永
  • 基金资助:
    青岛市医疗卫生优秀人才培养项目(No. 2010-WSZD081)

Effect of IL-28B gene polymorphism and HCV genotype on treatment of chronic hepatitis C in Qingdao District

Changhe Shi1, Xiuyun Song1, Yang Wei2, Yong Zhou1,()   

  1. 1. Qingdao The Sixth People’s Hospital, Qingdao 266033, China
    2. Zaozhuang Municipal Hospital, Zaozhuang 277000, China
  • Received:2015-11-27 Published:2017-02-15
  • Corresponding author: Yong Zhou
引用本文:

史昌河, 宋秀云, 魏阳, 周永. 青岛地区宿主IL-28B基因多态性及HCV基因型对慢性丙型肝炎抗病毒疗效的影响[J]. 中华实验和临床感染病杂志(电子版), 2017, 11(01): 45-50.

Changhe Shi, Xiuyun Song, Yang Wei, Yong Zhou. Effect of IL-28B gene polymorphism and HCV genotype on treatment of chronic hepatitis C in Qingdao District[J]. Chinese Journal of Experimental and Clinical Infectious Diseases(Electronic Edition), 2017, 11(01): 45-50.

目的

了解青岛市HCV基因型和宿主IL-28B基因多态性以及二者对CHC患者抗病毒治疗应答的影响,为慢性丙型肝炎患者个体化治疗提供一定指导。

方法

纳入40例慢性丙型肝炎初治患者,治疗前检测其HCV基因型、病毒载量以及人IL-28B基因型等指标,采用长效干扰素联合利巴韦林抗病毒治疗并定期随访患者的疗效。

结果

HCV基因1a、1b、2a、3a型感染者例数分别为1、28、10和1例。宿主IL-28B基因SNP rsl2979860 CC型28例,CT型12例;SNPrs8099917 GT型8例,TT型32例。治疗结束后随访24周共29例患者获得持续病毒应答率(SVR)。治疗2周时获得病毒学应答组与非应答组患者比较,两组获得的RVR(χ2 = 11.25、P = 0.001)和SVR(χ2= 15.09、P < 0.001)患者例数差异均有统计学意义。双变量相关分析结果显示,HCV非1b型,IL-28B SNPrs12979860 CC型和SNP rs8099917 TT型均与抗病毒治疗2周时应答率、RVR、SVR显著相关(P均< 0.05)。

结论

青岛地区CHC患者HCV基因型以基因1b型为主;青岛地区CHC患者IL-28B SNP位点以rs12979860 CC型和rs8099917 TT型为主;HCV基因型、IL-28B单核苷酸多态性可作为预测抗病毒疗效的指标,可用于指导慢性丙型肝炎的个体化治疗。

Objective

To investigate the genotype of HCV and host IL-28B genotype polymorphism in Qingdao Distinct, and their influence on antiviral treatment of chronic hepatitis C (CHC), so as to provide individualized treatment guidances to patients.

Methods

Total of 40 patients with CHC were enrolled, HCV genotypes, viral load and IL-28B genotypes of those patients were detected before treatment; those cases were given antiviral therapy of long-term interferon combined with ribavirin, and regular follow-up were carried out.

Results

There were 1, 28, 10 and 1 cases of HCV genotype 1a, 1b, 2a and 3a groups, respectively. The patients with host IL-28B gene SNP CC type and CT type were 12 and 28 cases; the SNPrs8099917 type Gt and type TT were 8 and 32 cases. Total of 29 patients got sustained viral response (SVR) at the end of treatment for total 24 weeks followed. Compared with the patients in non-response group after 2 weeks of treatment, there were significant difference of cases who got RVR (χ2 = 11.25, P = 0.001) and SVR (χ2= 15.09, P < 0.001) in virological response group. On the basis of Bivariate correlation analysis, there were significant correlation between the HCV non-1b type, IL-28B SNPrs12979860 type CC, SNP rs8099917 TT and the antiviral treatment response rate, RVR, SVR after 2 weeks of treatment (all P < 0.05).

Conclusions

HCV genotype 1b was the main genotype in Qingdao Distinct; rs12979860 CC and rs8099917 TT were the chief types of IL-28B SNP loci in patients with CHC. HCV genotype, IL-28B single nucleotide polymorphism could be used in individualized treatment of CHC as predictive index of antiviral efficacy.

表1 HCV RNA NS5B区扩增引物
表2 40份血清标本IL-28B基因分型[例(%)]
表3 不同HCV基因型及不同IL-28B SNP基因型患者抗病毒应答疗效[例(%)]
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