种群规模测序解决了持久性EBV DNA的决定因素
Sherry S Nyeo1,2, Erin M Cumming1, Oliver S Burren3
1Computational and Systems Biology Program, Memorial Sloan Kettering Cancer Center, New York, NY, USA.
Nature
|January 28, 2026
概括
持续的爱斯坦-巴尔病毒 (EBV) DNA水平与各种疾病有关. 遗传因素,特别是免疫调节和抗原处理,影响EBV持久性和疾病风险.
科学领域:
- 遗传学 是一个遗传学.
- 病毒学 病毒学
- 免疫学 免疫学 免疫学
- 生物信息学是一种生物信息学.
背景情况:
- 爱斯坦-巴尔病毒 (EBV) 是一种广泛传播的疹病毒,与自身免疫性疾病,癌症和神经系统疾病有关.
- 初级EBV感染通常无症状,但持续感染可能导致免疫失调和慢性健康问题.
- 在初次暴露后决定EBV持久性的遗传因素尚不清楚.
研究的目的:
- 为了研究持久的爱斯坦-巴尔病毒DNA的遗传结构.
- 通过使用大规模的人口数据,识别影响EBVDNA水平的宿主遗传因素.
- 探索EBV DNA负载与各种非癌症疾病之间的关联.
主要方法:
- 利用了来自英国生物银行 (n=490,560) 和我们所有人 (n=245,394) 队列的全基因组测序 (WGS) 和健康记录数据.
- 在使用WGS数据的血液样本中量化了持久性EBVDNA.
- 进行全基因组关联研究 (GWAS) 以确定遗传决定因素并分析基因表达和HLA数据.
主要成果:
- 建立了一种可复制的方法,从现有的WGS数据中量化EBV DNA.
- 确定了EBV DNA水平与呼吸道,自身免疫,神经和心血管疾病之间的显著关联.
- 发现了EBVDNA在免疫调节区域中的持续性遗传性,并确定了148个候选基因,涉及可变抗原处理和HLAII类变异.
结论:
- 对人口规模WGS数据的重新分析可以有效地阐明病毒DNA持久性的遗传基础.
- 宿主基因变异显著调节EBV DNA持久性,影响对一系列疾病的易感性.
- 这一框架可用于研究人类病毒组内的其他病毒感染的遗传基础.
相关概念视频
02:41pH Scale
79.6K
Hydronium and hydroxide ions are present both in pure water and in all aqueous solutions, and their concentrations are inversely proportional as determined by the ion product of water (Kw). The concentrations of these ions in a solution are often critical determinants of the solution’s properties and the chemical behaviors of its other solutes. Two different solutions can differ in their hydronium or hydroxide ion concentrations by a million, billion, or even trillion times. A common means of...
79.6K
00:57Population Growth
28.4K
Population size is dynamic, increasing with birth rates and immigration, and decreasing with death rates and emigration. In ideal conditions with unlimited resources, populations can increase exponentially, which plots as a J-shaped growth rate curve of population size against time. This type of curve is characteristic of newly-introduced invasive species, or populations that have suffered catastrophic declines and are rebounding.
28.4K
01:25What is Population Genetics?
64.7K
A population is composed of members of the same species that simultaneously live and interact in the same area. When individuals in a population breed, they pass down their genes to their offspring. Many of these genes are polymorphic, meaning that they occur in multiple variants. Such variations of a gene are referred to as alleles. The collective set of all the alleles within a population is known as the gene pool.
64.7K
02:04Conservation of Small Populations
17.1K
Small population sizes put a species at extreme risk of extinction due to a lack of variation, and a consequent decrease in adaptability. This weakens the chances of survival under pressures such as climate change, competition from other species, or new diseases. Large populations are more likely to survive pressures such as these, as such populations are more likely to harbor individuals that have genetic variants that are adaptive under new stresses. Small populations are much less...
17.1K
02:02Cis-regulatory Sequences
11.8K
Cis-regulatory sequences are short fragments of non-coding DNA that are present on the same chromosomes as the genes that they regulate. These fragments serve as binding sites for transcriptional regulators, proteins that are responsible for controlling gene transcription and differential gene expression across cell types in eukaryotes. Cis-regulatory sequences can be close to the gene of interest or thousands of bases away in the DNA sequence; however, those sequences that are further away are...
11.8K
00:30What are Populations and Communities?
37.6K
Overview
37.6K