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与胎儿生长相关的胎盘CCR5多态性
Li Qing Wang1, Giulia F Del Gobbo2, Elizabeth Wong3
1BC Children's Hospital Research Institute, 938W 28th Ave, Vancouver, BC V5Z 4H4, Canada; Department of Obstetrics and Gynaecology, University of British Columbia, 2329 West Mall, Vancouver, BC V6T 1Z4, Canada.
Journal of reproductive immunology
|July 24, 2025
概括
在一些怀孕队伍中,CCR5基因的遗传变异与出生体重有关. 然而,在暴露于艾滋病毒的怀孕中没有观察到这些关联,需要进一步的研究.
科学领域:
- 生殖生物学 生殖生物学
- 免疫学 免疫学 免疫学
- 遗传学 是一个遗传学.
背景情况:
- 胎盘对胎儿生长至关重要,免疫相互作用影响其发育和功能.
- CCR5基因编码了一个在胎盘中发现的促炎受体,但它在胎儿生长和胎盘DNA甲基化中的作用未得到充分研究.
研究的目的:
- 调查CCR5基因多态和出生结果之间的关联.
- 探索CCR5变异对胎盘DNA甲基化的影响,特别是在感染的背景下.
主要方法:
- 在EPIC队列 (n=233) 中评估了两个功能性CCR5多态 (Δ32删除和rs1799987 A/G促进体突变).
- 通过使用NICHD数据集 (n=286) 验证了rs1799987与出生体重的相关性.
- 在CARMA-Preg队列 (n=200) 中检查了CCR5变异和DNA甲基化,以艾滋病毒暴露进行丰富.
主要成果:
- 在EPIC队列中,CCR5的变异性等位基因与出生体重有关 (p=0.007和p=0.01).
- 在NICHD数据集 (p=0.003) 中验证了rs1799987与出生体重的相关性.
- 这些关联在暴露于艾滋病毒的CARMA-Preg队列中并不存在. rs1799987与包括CCR2和CCR5在内的大区域的DNA甲基化改变有关,但这种甲基化与出生体重无关.
结论:
- CCR5基因变异显示出与胎儿生长的潜在关联,影响特定人群的出生体重.
- 在暴露于艾滋病毒的怀孕中缺乏相关性表明了取决于背景的效应.
- 需要进一步的研究来证实这些发现,考虑到人口结构和单元型复杂性来确定因果关系.
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