组织特定的DNA甲基化变异性及其潜在的临床价值
Ryan H Miller1, Chad A Pollard2, Kristin R Brogaard1
1Inherent Biosciences, Salt Lake City, UT, United States.
Frontiers in genetics
|August 4, 2023
概括
这项研究引入了一种新的诊断工具,用于分析复杂疾病的表观遗传变异性. 它识别了疾病组织中的改变表观遗传模式,并且在预测男性不孕症结果方面表现有前途,特别是在子宫内授精 (IUI) 中.
科学领域:
- 表观遗传学和基因组学
- 复杂疾病的生物标志物
- 系统生物学方法 系统生物学方法
背景情况:
- 复杂的疾病由于多因素病因而存在诊断挑战.
- 目前的诊断生物标志物通常集中在有限的遗传或表观遗传标上.
- 对于复杂的疾病,需要一种系统层面的方法来分析生物途径.
研究的目的:
- 开发一种用于分析复杂疾病综合表观遗传特征的诊断工具.
- 测量基因促进体内的个体内甲基化变异性,以检测全球监管转变.
- 评估表观遗传变异的组织特异性,与疾病相关的变化和临床效用.
主要方法:
- 利用来自20种细胞类型和各种疾病的2400多个样本的公开可用的DNA甲基化数据.
- 开发了一种工具来测量基因促进体的个体内甲基化变异性,而不仅仅是差异甲基化区域.
- 使用无监督聚类来分析表观遗传变异性模式.
主要成果:
- 促进体区域的全球表观遗传变异性是组织特异性的.
- 与正常组织相比,患病的组织表现出改变的表观遗传变异性.
- 在多种复杂疾病中,表观遗传变异性分析成功地区分了患病和正常组织.
结论:
- 基因促进者的表观遗传变异性作为细胞调节状态的敏感指标.
- 开发的工具在评估诸如男性不孕症等多因素状况方面显示出临床实用性.
- 精子表观遗传变异性与子宫内授精 (IUI) 的活产成功相关,提供了潜在的生殖洞察力.
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