Influence of HLA Class II Polymorphism on Predicted Cellular Immunity Against SARS-CoV-2 at the Population and Individual Level.

Influence of HLA Class II Polymorphism on Predicted Cellular Immunity Against SARS-CoV-2 at the Population and Individual Level.
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DOI:
10.3389/fimmu.2021.669357
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发表时间:
2021
影响因子:
7.3
通讯作者:
Kosmoliaptsis V
Kosmoliaptsis V
中科院分区:
医学2区
文献类型:
--
作者:
Copley HC;Gragert L;Leach AR;Kosmoliaptsis V

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COVID-19后和SARS-CoV-2疫苗接种后获得性免疫的发展是基于CD 4 + T细胞对HLA II类分子上呈递的病毒肽的识别。我们利用25个人类种族/种族群体的广泛的高分辨率HLA数据,在群体和个体水平上研究HLA多态性对SARS-CoV-2免疫原性的作用。在人群中,我们根据个体HLA基因型,从结构、非结构和辅助SARS-CoV-2蛋白中确定了预测肽呈递的广泛个体间变异性。然而,我们在人群水平上发现了类似的抗SARS-CoV-2细胞免疫潜力,这表明HLA多态性不太可能解释不同种族/族裔群体在COVID-19后观察到的临床结局差异。我们的研究结果提供了重要的洞察HLA多态性的保护性免疫的发展后,SARS-CoV-2感染和疫苗接种后的潜在作用,并在这一领域的进一步实验研究奠定了坚实的基础。
Development of adaptive immunity after COVID-19 and after vaccination against SARS-CoV-2 is predicated on recognition of viral peptides, presented on HLA class II molecules, by CD4+ T-cells. We capitalised on extensive high-resolution HLA data on twenty five human race/ethnic populations to investigate the role of HLA polymorphism on SARS-CoV-2 immunogenicity at the population and individual level. Within populations, we identify wide inter-individual variability in predicted peptide presentation from structural, non-structural and accessory SARS-CoV-2 proteins, according to individual HLA genotype. However, we find similar potential for anti-SARS-CoV-2 cellular immunity at the population level suggesting that HLA polymorphism is unlikely to account for observed disparities in clinical outcomes after COVID-19 among different race/ethnic groups. Our findings provide important insight on the potential role of HLA polymorphism on development of protective immunity after SARS-CoV-2 infection and after vaccination and a firm basis for further experimental studies in this field.
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