在欧洲人中喘恶化的表观基因组广泛关联研究
Elena Martin-Gonzalez1, Javier Perez-Garcia1, Esther Herrera-Luis2
1Genomics and Health Group, Department of Biochemistry, Microbiology, Cell Biology, and Genetics, Universidad de La Laguna (ULL), La Laguna, Spain.
Allergy
|February 5, 2025
概括
DNA甲基化 (DNAm) 的表观遗传变化与欧洲人的喘恶化 (AE) 有关. 血液和鼻腔组织中的这些DNAm标记物可能反映了AEs的遗传和环境风险因素.
科学领域:
- 遗传学和表观遗传学
- 呼吸系统医学 呼吸系统医学
- 免疫学 免疫学 免疫学
背景情况:
- 喘恶化 (AE) 是一个主要的全球健康问题.
- 虽然遗传和环境因素有关,但表观遗传在AEs中的作用在很大程度上是未知的.
- 了解表观遗传贡献对于管理喘负担至关重要.
研究的目的:
- 在欧洲人群中识别与喘恶化相关的全血DNA甲基化 (DNAm) 标记物.
- 探索DNAm模式与AEs之间的关系.
- 调查DNAm.捕获的潜在遗传和环境影响.
主要方法:
- 在406名西班牙人的血液样本中,使用Illumina MethylationEPIC微阵列对DNAm进行了全表观基因组关联研究 (EWAS).
- 在222个欧洲个体中进行复制分析和对全基因组意义的元分析.
- 使用鼻组织DNAm和cis-methylation定量特征位点 (meQTL) 分析进行跨组织验证,以评估遗传影响.
主要成果:
- 在元分析后,两个DNAm位点 (CpG),注释为ZBTB16和BAIAP2,与AE显著相关.
- 一个CpG (cg25345365,ZBTB16) 在鼻膜中得到了验证,并与meQTLs相关联,表明了遗传影响.
- 四个差异甲基化区域和一个模块也与AE相关,富化分析显示与环境暴露和免疫疾病有关.
结论:
- 在全血和鼻腔样本中的DNA甲基化显示出作为欧洲人喘恶化生物标志物的潜力.
- 这些DNAm标记物似乎整合了遗传和环境风险因素的影响.
- 对表观遗传机制的进一步研究可以为AEs管理提供新的见解.
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