以DNA甲基化为导向的TAAD分子点的预测和验证
Mengyao Sha1,2, Qianying Wang1, Qiwen Hu1
1School of Medical Technology, Beihua University, Jilin, 132013, Jilin, China.
Biochemical genetics
|February 3, 2026
概括
增加NR2F2和GATA2基因的DNA甲基化与胸前大动脉动脉瘤和解剖 (TAAD) 有关. 这些基因显示出作为这种心血管疾病的新型诊断生物标志物的潜力.
科学领域:
- 心血管表观遗传学 心血管表观遗传学
- 分子诊断学 分子诊断学
- 基因组生物标志物 基因组生物标志物
背景情况:
- 胸前动脉动脉瘤和剖析 (TAAD) 是一种关键的心血管疾病,需要精确的诊断方法.
- 表观遗传修饰,特别是DNA甲基化,在TAAD的早期检测中发挥着重要作用.
- 现有的TAAD诊断方法可以通过新的分子生物标志物来改进.
研究的目的:
- 确定用于胸前大动脉动脉瘤和解剖 (TAAD) 的基于DNA甲基化的新生物标志物.
- 研究特定基因NR2F2和GATA2在TAAD表观遗传调节中的作用.
- 验证NR2F2和GATA2促进剂高甲基化作为TAAD诊断标记物的潜力.
主要方法:
- 对转录组数据集 (GSE84274,GSE202047) 的分析,以确定差异表达基因 (DEG) 和差异甲基化位置/区域 (DMP/DMR).
- 采用了统计方法,包括 DIvisive ANAnalysis (DIANA) 和 Orthogonal Projection to Latent Structures-Discriminant Analysis (OPLS-DA) 来检测异常值的情况.
- 采用基因本体学 (GO) 和基因和基因组 (KEGG) 京都百科全书的途径分析,用于基因相互作用分析的STRING数据库,用于验证的ELISA,RT-PCR,MSP和BSP.
主要成果:
- 确定了498个具有促进者DMP和DMR的DEG,突出显示了血管和TNF信号通路.
- 核受体亚家族2组F成员2 (NR2F2) 和GATA结合蛋白2 (GATA2) 被确定为核心DEG.
- 在TAAD中证实了NR2F2和GATA2的促进剂高甲基化,与增加的5-mC水平和改变的基因表达相关,验证它们是潜在的生物标志物.
结论:
- 增加NR2F2和GATA2的促进物甲基化显著与胸前动脉动脉瘤和剖析 (TAAD) 有关.
- NR2F2和GATA2代表了TAAD有前途的新型诊断生物标志物.
- 通过DNA甲基化的表观遗传调节是TAAD病变发生的关键因素,并为早期诊断提供了途径.
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