与疾病相关的调节性DNA变体和表皮的恒常转录因子
Douglas F Porter1, Robin M Meyers2,3, Weili Miao2
1Program in Epithelial Biology, Stanford University School of Medicine, Stanford, CA, USA. dfporter@stanford.edu.
Nature communications
|September 25, 2025
概括
研究人员通过分析转录因子结合来确定影响皮肤平衡的遗传变异. 这揭示了被破坏的表皮分化是多原性皮肤疾病的关键机制,涉及到特定的TF家族的疾病风险.
科学领域:
- 基因组学就是基因组学.
- 皮肤病学 皮肤病学
- 分子生物学分子生物学
背景情况:
- 识别与多基因疾病风险相关的非编码变异至关重要.
- 了解这些变异如何影响转录因子 (TF) 结合和基因调节是一个关键的挑战.
研究的目的:
- 为了识别与多基因皮肤疾病相关的非编码单核酸变体 (SNVs).
- 为了确定它们结合的转录因子 (TF),以及它们调节失调的基因.
- 阐明TF结合在表皮平衡和皮肤疾病发病过程中的作用.
主要方法:
- 对3451种SNV与多原性皮肤疾病风险相关的大量并行报告员分析.
- 1772个人类TF的CRISPR淘汰屏幕,以确定那些对表皮平衡至关重要的人.
- 种群采样27个同位素TF的CUT&RUN,以确定异位基因特异性DNA结合 (ASB) 差异.
主要成果:
- 确定了355种差异活性SNV (daSNV),并证实了皮肤表皮分化的失调作为共享的病理机制.
- 发现了123个对表皮平衡至关重要的TF,包括ZNF217和CXXC1.1.
- 在daSNVs中发现了基因特异性DNA结合 (ASB) 差异,用于同居TFs,特别是SP/KLF和AP-1/2家族,在相关基因附近.
结论:
- 特定的恒常性TF家族的失调结合有助于各种多基因皮肤疾病的风险.
- 这项研究为了解多遗传性皮肤疾病背后的分子机制提供了宝贵的资源.
- 有针对性的基因分析和编辑证实了daSNVs在表皮分化途径中的作用.
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