在喘中预测和描述基因调节的目标组织表达
Sarah D Slack1, Erika Esquinca1,2, Christopher H Arehart3,4
1Department of Biomedical Informatics, University of Colorado Anschutz Medical Campus, Aurora, CO, USA.
medRxiv : the preprint server for health sciences
|February 20, 2025
概括
喘组织的新基因表达预测模型,包括CD4+ T细胞和鼻上皮质,在非洲祖先种群中确定了17个候选因果性喘基因. 这些发现促进了对代表性不足的群体中喘遗传学的理解.
科学领域:
- 基因组学就是基因组学.
- 免疫学 免疫学 免疫学
- 人口遗传学 人口遗传学
背景情况:
- 对喘相关组织中基因表达的遗传控制尚不清楚,特别是在非洲祖先人群中,这导致了喘患病率和严重程度的差异.
- 对非洲祖先种群的有限遗传数据阻碍了识别新的喘相关基因和途径.
研究的目的:
- 开发用于鼻上皮和CD4+T细胞的新型转录组预测模型.
- 将这些模型应用于全转录组关联研究 (TWAS),以发现非洲祖先个体的候选喘基因.
- 加强在遗传关联研究中多样化祖先的代表性.
主要方法:
- 开发和验证了基因表达预测数据库,用于未刺激的CD4+T细胞 (CD4+T) 和使用弹性网框架的鼻上皮质.
- 整合了新的数据库与51个现有的数据库,用于对9,284名非洲祖先的个人进行TWAS分析.
- 鉴定了与喘相关的组织特异性和跨组织候选基因.
主要成果:
- 为CD4+T (8,351个基因) 和鼻上皮 (10,296个基因) 创建了新的预测数据库,包括四个以前无法预测的喘位置.
- TWAS确定了17个候选因果性喘基因 (调整后P<0.1),其中包括IL33 (鼻上皮质),CCNC和FBXW7 (交叉组织) 的显著基因.
- 预测模型的准确性在与训练集祖先相匹配的群体中是最高的,这凸显了祖先特定模型的重要性.
结论:
- 通过炎症途径确定IL33,CCNC和FBXW7作为非洲祖先人群中喘风险的潜在媒介.
- 新的CD4+T和鼻上皮预测数据库改善了祖先的表征,并增加了检测TWAS中的新基因特征关联的能力.
- 这些资源对于推进不同人群的喘精准医学至关重要.
关键词:
CD4+ T T CD4+ T T CD4+ T T CD4+ T CD4+ T CD4+ T T CD4+ T CD4+ T CD4+ T T CD4+ T CD4+ T CD4+ T CD4+ T CD4+ T T CD4+ T CD4+ T CD4+ T CD4+ T CD4+ T T T T CD4+ CD4+ CD4+ CD4+ CD4+ CD4+ T T T T T T CD4+ CD4+ CD4+ CD4+ CD4+ CD4+ CD4+ CD4+ CD4+ CD4+ CD4+ CD4+ CD4+ CD4+ CD4+ T T T T T T T T T CD4+ CD4+ CD4+ CD4+ CD4+ CD4+ CD4+ CD4+ CD4+ CD4+ CD4+ CD4+ CD4+ CD4+ CD4+ CD4+ CD4+ CD4+ CD4+ CD4+ CD4+ CD4+ CD4+ CD4+ CD4+ CD4+ CD4+ CD4+ CD4+ T T T T在TWAS中,TWAS就是TWAS.祖先的血统 祖先的祖先喘 喘 是一种我们的eQTL是eQTL.基因表达的基因表达方式鼻子上皮质 鼻子上皮质
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