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中华实验和临床感染病杂志(电子版) ›› 2018, Vol. 12 ›› Issue (04) : 402 -408. doi: 10.3877/cma.j.issn.1674-1358.2018.04.017

所属专题: 文献

论著

不同基因型HBV对药物反应性和S基因突变位点研究
朱杰华1,(), 黄嘉玲2, 王江林2, 何应中1, 杜文胜1, 黄健1   
  1. 1. 563000 遵义市,遵义医学院附属医院医学检验科
    2. 563099 遵义市,遵义医学院医学检验系医学检验2012级K-1班
  • 收稿日期:2017-10-07 出版日期:2018-08-15
  • 通信作者: 朱杰华
  • 基金资助:
    贵州省联合基金(No.黔科合LH字[2015]7478号)

Drug reactivity and mutations of S gene from different genotypes of hepatitis B virus

Jiehua Zhu1,(), Jialing Huang2, Jianglin Wang2, Yingzhong He1, Wensheng Du1, Jiang Huang1   

  1. 1. Department of Medical Labotory, Affiliated Hospital of Zunyi Medical University, Zunyi 563000, China
    2. Department of Laboratory Medicine, Zunyi Medical College and Institute of Science and Technology, Zunyi 563099, China
  • Received:2017-10-07 Published:2018-08-15
  • Corresponding author: Jiehua Zhu
  • About author:
    Corresponding author: Zhu Jiehua, Email:
引用本文:

朱杰华, 黄嘉玲, 王江林, 何应中, 杜文胜, 黄健. 不同基因型HBV对药物反应性和S基因突变位点研究[J]. 中华实验和临床感染病杂志(电子版), 2018, 12(04): 402-408.

Jiehua Zhu, Jialing Huang, Jianglin Wang, Yingzhong He, Wensheng Du, Jiang Huang. Drug reactivity and mutations of S gene from different genotypes of hepatitis B virus[J]. Chinese Journal of Experimental and Clinical Infectious Diseases(Electronic Edition), 2018, 12(04): 402-408.

目的

分析HBV不同基因型对药物反应性及S基因变异情况。

方法

收集遵义医学院附属医院于2016年3月至2017年7月就诊的186例HBV DNA阳性乙型肝炎患者的血清样本,根据是否用药分为治疗组130例和对照组56例,治疗组根据用药不同分为干扰素组、核苷(酸)类似物组、保肝药组和中成药组,分别提取HBV DNA后扩增S基因并测序,结合临床资料分析疗效与基因型相关性。

结果

对照组共51例患者扩增出S基因[91.1%(51/56),其中B基因型30例,C基因型21例],治疗组共有104例患者样本扩增出S基因[80.0%(104/130),其中B基因型62例,C基因型42例],均以B、C基因型为主。两种基因型对核苷(酸)类似物的反应性(肝功能改变、HBVDNA拷贝数)与未治疗组差异有统计学意义(P < 0.01)。B基因型HBV S基因经核苷(酸)类似物作用后,第597位碱基鸟嘌呤G变为腺嘌呤A即183位苯丙氨酸(Phe/F)突变为缬氨酸(Val/V),使翻译终止。保肝药和干扰素引起131位鸟嘌呤G突变为腺嘌呤A,进而甘氨酸(Gly/G)变为谷氨酸(Glu/E),且9和213位氨基酸突变率为100%。C基因型HBV则发生26位胞嘧啶C突变为胸腺嘧啶T,即脯氨酸(P)变为亮氨酸(L)及53位点丝氨酸(Ser/S)突变为亮氨酸L。保肝药物作用主要引起68位点异亮氨酸(Ile/I)突变为苏氨酸(Thr/T)和49位点P变L。干扰素和中成药均可引起225位酪氨酸-异亮氨酸(YI)变为异亮氨酸-组氨酸(IH)和9位氨基酸P变L。

结论

不同HBV基因型对药物反应不同,B、C基因型HBV对药物反应可产生相同突变位点。

Objective

To investigate the different genotypes of HBV on drug reactivity and variation of S gene.

Methods

Total of 186 specimens of hepatitis B patients with HBV DNA positive were collected in Affiliated Hospital of Zunyi Medical University from March of 2016 to July of 2017. According to whether or not using drugs, 186 specimens were divided into experimental group with 130 cases and control group with 56 cases. And the experimental group was divided into interferon group, nucleoside analogue group, hepatoprotective drug group, and Chinese Traditional Medicine group. HBV DNA were extracted and amplified and S gene were sequenced. While the correlation between genotype and clinical treatment were analyzed by clinical data analysis.

Results

S gene were amplified in 91.1% (51/56) samples in untreated group and 80.0% (104/130) samples in experimental group, mainly with B and C genotypes. The reactivity of the two genotypes (the changes of ALT, AST and HBV DNA) were significantly different compared with untreated group (P< 0.01). After reacted with nucleos(t)ide analogues, guanine at the 597th alkaline of S gene in B genotype mutated to adenine, and Phenylalanine (Phe/F) at the 183rd amino acid mutated to valine (Val/V), then translation was terminated. The hepatoprotective drugs and interferon mainly cause the 131st guanine changed to adenine, and Glycine (Gly/G) mutated to glutamic acid (Glu/E), the mutation rate of the 9th and 213rd amino acid were 100%. Among the C genotype, cytosine at the 26th site mutated to thymine, then Proline (Pro/P) mutated to Leucine (Leu/L) and serine (Ser/S) at the 53rd site mutated into Leu. In the hepatoprotective drugs group, Isoleucine mutated to Threonine at the 68th site and P changed into L at the 49th site. Interferon and Chinese Traditional Medicine caused a common mutation with 225 bit Tyrosine-Isoleucine (TI) changing into Isoleucine-Hlstidinein (IH) for both genotype B and C HBV, and the 9th Proline mutated to Leucine.

Conclusions

Different genotypes of HBV showed different reactivity to drugs, genotypes B and C could show the same mutation sites in S gene.

表1 HBV S基因引物序列表
图1 各基因型的同源性
图2 S基因测序结果部分峰图
表2 62例HBV B基因型对不同药物的应答( ±s
表3 42例HBV C基因型对不同药物的应答(±s
表4 药物作用后HBV B基因型S基因碱基及氨基(酸)突变位点[例(%)]
表5 药物作用后HBV C基因型S基因碱基及氨基酸突变位点[例(%)]
表6 药物作用后HBV B与C基因型相同突变位点[例(%)]
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