检验医学 ›› 2017, Vol. 32 ›› Issue (6): 535-539.DOI: 10.3969/j.issn.1673-8640.2017.06.020

• 基础研究_论著 • 上一篇    下一篇

EB病毒再激活过程中HLA优势基因型的分析

许健1, 吴蓉2, 相芬芬2, 詹月萍1, 倪振华1, 郝文斌2, 乐红红2, 康向东2   

  1. 1.上海中医药大学附属普陀医院中心实验室,上海 200062
    2.上海中医药大学附属普陀医院检验科,上海 200062
  • 收稿日期:2016-08-22 出版日期:2017-06-30 发布日期:2017-07-04
  • 作者简介:null

    作者简介:许 健,女,1989年生,学士,技师,主要从事病毒学检验工作。

  • 基金资助:
    上海市科委引导项目(134119b1900);上海市普陀区科委项目(2012PTKW001、2013PTKW025)

Advantages of HLA genotypes in EBV reactivation

XU Jian1, WU Rong2, XIANG Fenfen2, ZHAN Yueping1, NI Zhenhua1, HAO Wenbin2, YUE Honghong2, KANG Xiangdong2   

  1. 1. Central Laboratory,Putuo Hospital,Shanghai University of Traditional Chinese Medicine,Shanghai 200062, China
    2. Department of Clinical Laboratory,Putuo Hospital,Shanghai University of Traditional Chinese Medicine,Shanghai 200062,China
  • Received:2016-08-22 Online:2017-06-30 Published:2017-07-04

摘要:

目的 分析中国人群高频率的人类白细胞抗原(HLA)基因型及其所递呈EB病毒(EBV)蛋白表位序列。方法 通过NetMHC软件分析预测并合成HLA能够递呈EBV蛋白表位的23种多肽,按照HLA表型HLA-A*2402、HLA-A*1101和HLA-B*4001分为3组。收集160名健康志愿者的外周血单个核细胞(PBMC),用3组多肽刺激PBMC,血液分析仪检测增殖,采用γ干扰素(IFN-γ)酶联免疫吸附试验(ELISA)试剂盒检测IFN-γ水平,并用流式细胞术检测CD8、白细胞介素17(IL-17)、CD40L、肿瘤坏死因子α(TNF-α)、CD45RA、转录因子(Foxp3)的表达水平。结果 在160例外周血样本中,对3组多肽刺激反应阳性数为61例,其中HLA-A*2402型阳性数为24例,阳性率为15%;HLA-A*1101型阳性数为34例,阳性率为21%;HLA-B*4001型阳性数为31例,阳性率为19%。阳性反应组外周血中CD8、IL-17、CD40L、TNF-α的表达水平显著高于阴性反应组,差异有统计学意义(P<0.05),而CD45RA、Foxp3的表达水平差异无统计学意义(P>0.05)。结论 中国人群HLA-A*1101基因型在递呈EBV表位序列中占优势。

关键词: EB病毒, 表位, 人类白细胞抗原, 免疫反应, 干扰素, CD8+T细胞

Abstract:

Objective To analyze Epstein-Barr virus (EBV) protein epitope polypeptide sequence and its human leukocyte antigen (HLA)genotypes with high frequency in Chinese. Methods A total of 23 polypeptides of EBV protein epitope were designed by NetMHC software. According to HLA phenotypes,HLA-A*2402,HLA-A*1101 and HLA-B*4001,polypeptides were classified into 3 groups. Peripheral blood mononuclear cells (PBMC) collected from 160 healthy subjects were stimulated with 3 groups of polypeptides. Interferon-gamma (IFN-γ) levels were determined by IFN-γ enzyme-linked immunosorbent assay (ELISA). CD8,interleukin 17 (IL-17),CD40L,tumor necrosis factor alpha (TNF-α),CD45RA and Foxp3 expression levels were determined by flow cytometry. Results In 160 peripheral blood samples,61 cases were positive,of which 24 cases with HLA-A*2402 positive(15%),34 cases were HLA-A*1101 positive(21%),31 cases were HLA-B*4001 positive (19%). The expression levels of CD8,IL-17,CD40L and TNF-α in peripheral blood in positive reaction group were higher than those in negative reaction group (P<0.05),but the expression levels of CD45RA and Foxp3 had no statistical significance(P>0.05). Conclusions In Chinese,HLA-A*1101 genotype is dominant in EBV protein epitope polypeptide sequence.

Key words: Epstein-Barr virus, Epitope, Human leukocyte antigen, Immune response, Interferon, CD8+T cells

中图分类号: