首页> 外文期刊>The Journal of general virology >An immunodominant HLA-A*1101-restricted CD8+ T-cell response targeting hepatitis B surface antigen in chronic hepatitis B patients
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An immunodominant HLA-A*1101-restricted CD8+ T-cell response targeting hepatitis B surface antigen in chronic hepatitis B patients

机译:针对慢性乙型肝炎患者的针对乙型肝炎表面抗原的免疫显性HLA-A * 1101限制性CD8 + T细胞应答

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Hepatitis B virus (HBV) infection is a worldwide public health problem. HBV-specific CD8+ CTLs are vital for viral clearance. Identification of immunodominant CTL epitopes from HBV-associated antigens is necessary for therapeutic vaccine development. We showed that the HLA-A*1101 allele is one of the most common alleles in both healthy individuals and chronic hepatitis B (CHB) patients in the Chongqing area, China. However, less than 10?% of epitopes of HBV-associated antigens have been identified in an HLA-A*1101 context. Here, we describe an immunodominant CD8+ T-cell response targeting a hepatitis B surface antigen determinant (HBs295–304) restricted by HLA-A*1101 in both healthy individuals and CHB patients. Moreover, HBs295–304 is more immunogenic for CTL induction than a known naturally HLA-A*1101-processed epitope from hepatitis B core antigen (HBc88–96). Therefore, the newly identified epitope, HBs295–304, will benefit the development of immunotherapeutic approaches for HBV infection.
机译:乙型肝炎病毒(HBV)感染是世界范围内的公共卫生问题。 HBV特异性CD8 + CTL对于清除病毒至关重要。从HBV相关抗原中鉴定出免疫优势的CTL表位对于治疗性疫苗的开发是必要的。我们显示HLA-A * 1101等位基因是中国重庆地区健康个体和慢性乙型肝炎(CHB)患者中最常见的等位基因之一。但是,在HLA-A * 1101的背景下,已鉴定出不到10%的HBV相关抗原表位。在这里,我们描述了针对健康人和CHB患者中受HLA-A * 1101限制的乙型肝炎表面抗原决定簇(HBs295-304)的免疫优势CD8 + T细胞应答。此外,HBs295–304比已知的由乙型肝炎核心抗原(HBc88–96)天然的HLA-A * 1101处理的抗原决定簇对CTL的诱导更具免疫原性。因此,新发现的抗原表位HBs295-304将有益于HBV感染免疫治疗方法的发展。

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