种群规模测序解决了隐藏的爱斯坦-巴尔病毒感染的相关因子和决定因素
Sherry S Nyeo1,2, Erin M Cumming1, Oliver S Burren3
1Computational and Systems Biology Program, Memorial Sloan Kettering Cancer Center, New York, NY, USA.
bioRxiv : the preprint server for biology
|August 12, 2025
概括
使用全基因组测序 (WGS) 在血液中检测到的隐性爱斯坦-巴尔病毒 (EBV) DNA可以作为呼吸道,自身免疫和心血管疾病的生物标志物. 遗传因素,特别是抗原呈现和MHCII类,影响EBV持久性.
科学领域:
- 基因组学就是基因组学.
- 免疫学 免疫学 免疫学
- 病毒学 病毒学
背景情况:
- 爱斯坦-巴尔病毒 (EBV) 是一种无处不在的疹病毒,与各种疾病有关,包括自身免疫,癌症和神经系统疾病.
- 虽然原发性EBV感染往往无症状,但病毒延迟会导致由于免疫失调导致长期健康问题.
- 了解对EBV的可变宿主反应,并确定潜在感染的可靠生物标志物,对于管理相关疾病至关重要.
研究的目的:
- 利用现有的全基因组测序 (WGS) 数据,开发一种潜在EBV感染的分子生物标志物.
- 研究潜伏EBVDNA与复杂的特征和疾病的关联.
- 确定影响血液中持续存在的EBV DNA的遗传决定因素.
主要方法:
- 从英国生物银行和我们所有人队伍的WGS数据中从非人类DNA序列中重建潜伏的EBV DNA生物标志物.
- 全基因组和全外基因组关联研究 (GWAS/EWAS) 以确定与EBV DNA持久性相关的遗传变异.
- 单细胞和通路规模的丰富分析,包括预测的病毒表位表现亲缘关系.
主要成果:
- 从血液中获得的潜在EBVDNA被确定为与呼吸道,自身免疫和心血管疾病相关的可复制生物标志物.
- 147个基因中的蛋白质改变变异被确定为持久的EBV DNA的潜在遗传决定因素.
- 可变的抗原处理和呈现,特别是涉及B细胞和抗原呈现细胞,被认为是关键的遗传因素,MHCII类的变异起着重要作用.
结论:
- 现有的WGS数据可以被利用来获得潜在病毒感染的新分子生物标志物,如EBV.
- 血液中的潜伏EBVDNA显示出与各种复杂疾病的显著关联,突出其作为诊断或预后标记物的潜力.
- 免疫反应途径的遗传变异,特别是抗原呈现,是EBV持久性的关键决定因素,为疾病病原体提供了洞察力.
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