综合性高通量增强器调查和功能验证揭示了一个YY2缩小的监管轴,赋予骨质疏松症的风险
Xiao-Feng Chen1, Yuan-Yuan Duan1, Ying-Ying Jia1
1Key Laboratory of Biomedical Information Engineering of Ministry of Education, Key Laboratory of Biology Multiomics and Diseases in Shaanxi Province Higher Education Institutions, Biomedical Informatics and Genomics Center, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an 710049, Shaanxi, China.
Cell genomics
|February 9, 2024
概括
这项研究揭示了遗传变异如何通过改变基因调节来影响骨质疏松症风险. 关键的转录因子与特定的DNA区域结合,影响骨细胞的发育,并提供有关骨质疏松症机制的见解.
科学领域:
- 基因组学就是基因组学.
- 分子生物学分子生物学
- 表观遗传学 在表观遗传学中,表观遗传学是指表观遗传学.
背景情况:
- 染色体组织在骨质疏松遗传风险因素中的作用尚不清楚.
- 识别调节元件及其向基因对于了解疾病机制至关重要.
研究的目的:
- 研究与骨质疏松症相关的单核酸多形态 (SNP) 对增强剂活性和基因调节的功能影响.
- 确定参与调节骨质疏松风险位置的关键转录因子 (TF).
主要方法:
- 结合色素相互作用形态 (Hi-C) 和自我转录的活性调节区域测序 (STARR-seq) 来映射增强剂活性.
- 功能性特征,图案丰富和网络分析以确定监管元素和TFs.
- 基因特异性结合试验以确认TF-SNP相互作用和下游效应.
主要成果:
- 鉴定了319个具有偏差等位基因增强活性 (baaSNP) 的SNP,与146个位置的数百个基因相关.
- 证明了baaSNP的活性表观遗传丰富,并确定了相互作用基因的骨质疏松相关调节作用.
- 优先考虑了包括YY2在内的几个TF,并表明特定的baaSNP (rs11202530) 通过YY2结合调节PAPSS2表达,促进骨质细胞分化.
结论:
- 转录因子介导的增强剂-促进剂相互作用在骨质疏松遗传风险中起着重要作用.
- 这项研究为了解骨质疏松风险区域背后的分子机制提供了一个框架.
- 这些发现可能会为未来针对骨质疏松症基因调节的治疗策略提供信息.
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