出生时的DNA甲基化和从出生到青春期的IgE轨迹,白人和亚洲人之间的不同模式
Hongmei Zhang1, Jiasong Duan2, Luhang Han3
1Division of Epidemiology, Biostatistics, and Environmental Health, School of Public Health, University of Memphis, Memphis, TN, USA.
Epigenomics
|January 18, 2025
概括
出生时的表观遗传学,特别是DNA甲基化,可能会解释种族之间的总免疫球蛋白E (IgE) 水平随着时间的推移的差异. 这项研究分析了英国和台湾出生队伍的IgE轨迹.
科学领域:
- 免疫学 免疫学 免疫学
- 遗传学 是一个遗传学.
- 表观遗传学 在表观遗传学中,表观遗传学是指表观遗传学.
背景情况:
- 总免疫球蛋白E (IgE) 水平是过敏疾病的关键生物标志物.
- 了解从出生起影响IgE轨迹的因素对于早期疾病预测和预防至关重要.
研究的目的:
- 研究出生时的DNA甲基化 (DNAm) 与整个儿童和青少年时期的IgE总轨迹之间的关联.
- 要确定这种关联是否特定于种族.
主要方法:
- 在两个独立的出生队列中检查了出生时的DNAm和总IgE水平:怀特岛出生队列 (英国,n=796,白色) 和母亲和婴儿队列研究 (台湾,n=60,亚洲).
- 对相关的CpG位点分析了生物通路和甲基化定量特征位点 (methQTL).
- 在每个队列中推断出高与低的IgE总轨迹.
主要成果:
- 在英国队列中确定了DNAm在103个CPG和IgE轨迹之间的关联,并在台湾队列中确定了476个CPG.
- 在两个队列中确定了一个常见的CpG位点 (cg16711274,与MINAR1相关) 和17个常见的生物通路 (四个与呼吸道疾病相关).
- 出生时的DNA甲基化模式与不同种族群体的IgE轨迹有明显的关联.
结论:
- 表观遗传因素,特别是出生时的DNA甲基化,可能在确定总IgE轨迹的种族特异性差异方面发挥重要作用.
- 这些发现突显了早期表观遗传学在了解不同人群中过敏疾病的发展方面的潜力.
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