基因组结构变异将多个基因与骨矿物质密度联系在一个多民族队列研究中:路易斯安那州骨质疏松症研究
Kuan-Jui Su1, Chuan Qiu1, Jonathan Greenbaum1
1Deming Department of Medicine, School of Medicine, Tulane Center for Biomedical Informatics and Genomics, Tulane University, New Orleans, LA 70112, United States.
概括
基因组结构变异 (SVs) 显著影响骨矿物质密度 (BMD) 和骨质疏松症风险. 这项研究确定了与骨质疏松症相关的新基因和SV,为骨质疏松症遗传性提供了新的见解.
科学领域:
- 基因组学就是基因组学.
- 骨生物学 骨生物学 骨生物学
- 代谢障碍 代谢障碍 代谢障碍
背景情况:
- 骨质疏松症是一种遗传性代谢性骨疾病,其特点是骨矿物质密度 (BMD) 低.
- 虽然单核酸变异 (SNVs) 被研究,但它们解释了有限的BMD遗传性.
- 大规模基因组结构变异 (SVs) 在骨质疏松易感性中的作用尚不清楚.
研究的目的:
- 识别和优先考虑含有BMD相关结构变异 (SVs) 的基因.
- 调查SVs与不同骨部位的BMD变异的关联.
- 探索SVs对BMD的性别和种族特异性影响.
主要方法:
- 在路易斯安那骨质疏松症研究的4982名受试者身上进行了全基因组测序.
- 组合方法被用于高可靠性SV检测.
- 测试了SV与部 (HIP),大腿部 (FNK) 和腰椎 (SPN) BMD的关联;用于基因优先级的多omics同时发生分析.
主要成果:
- 确定了重要的SV-BMD关联:FNK-BMD为125个,SPN-BMD为99个,HIP-BMD为83个.
- 识别的SV解释了BMD变异的13.3%至19.1%,其中一些通常与FNK和HIPBMD相关.
- 发现了新的骨相关基因 (LINC02370,ZNF,ZDHHC家族) 和潜在的因果基因 (IBSP,SPP1);对于FMN2.2,注意到了性别特异性的影响.
结论:
- 这项研究揭示了SVs对BMD变异和骨质疏松症易感性的显著贡献.
- 与BMD相关的SVs在骨部位,性别和种族之间表现出共同和特定的遗传影响.
- 这些发现为骨质疏松病理生理学提供了新的见解,并确定了未来研究和治疗的潜在目标.
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