综合性分析确定基因特征,调解DNA甲基化对喘严重程度和肺功能的影响
Eskezeia Y Dessie1, Lili Ding2, Tesfaye B Mersha3
1Division of Asthma Research, Department of Pediatrics, Cincinnati Children's Hospital Medical Center, University of Cincinnati College of Medicine, Cincinnati, OH, USA.
Clinical epigenetics
|January 20, 2024
概括
支气管上皮细胞中的DNA甲基化 (DNAm) 和基因表达变化与喘严重程度和肺功能有关. 一个使用18个DNAm位点和28个基因的预测模型准确地确定了喘风险.
科学领域:
- 表观遗传学和转录组学
- 分子生物学分子生物学
- 呼吸系统医学 呼吸系统医学
背景情况:
- 基因甲基化 (DNAm) 对喘中基因表达调节至关重要.
- 表观遗传和转录基因的变化有助于喘的发病.
研究的目的:
- 为了研究DNA甲基化和基因表达变化在喘中的作用.
- 确定与喘严重程度和肺功能相关的表观遗传和转录生物标志物.
- 开发一种对喘风险的预测模型.
主要方法:
- 对来自支气管上皮细胞 (BECs) 的公开可用的DNA甲基化和基因表达数据的分析.
- 不同甲基化/表达分析和加权联合甲基化/联合表达网络分析.
- 机器学习用于喘风险预测和调解分析,将DNAm与基因表达和临床结果联系起来.
主要成果:
- 使用18个CpG和28个差异表达基因 (DEG) 的风险预测模型实现了高准确性 (AUC=0.99在发现中,AUC=0.82在验证中).
- 同甲基化和共同表达的模块与喘严重程度和肺功能有关,富含WNT/β-catenin和隙信号通路.
- 17个关键的CpG及其相关的DEG在一个独立的气道上皮细胞数据集中得到验证,调解了DNAm对喘结果的影响.
结论:
- 支气管上皮细胞中的DNA甲基化和基因表达变化与喘有显著的关联.
- 该研究提供了对DNA甲基化影响喘,其严重程度和肺功能机制的见解.
- 一个经过验证的多CpG和多DEG模型证明了准确预测喘风险的潜力.
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