使用初级B细胞和EBV-immortalizedB细胞参考基因组定义儿科和青少年B细胞的三维色素结构
Kaiyu Jiang1,2, Yao Fu3, Jennifer A Kelly3
1Department of Pediatrics, Clinical and Translational Research Center, Jacobs School of Medicine and Biomedical Sciences, University of Buffalo, 875 Ellicott St, Buffalo, NY, 14203, USA.
BMC medical genomics
|May 28, 2025
概括
儿科B细胞的3D基因组结构与成人细胞和细胞系非常相匹配,甚至在自身免疫性疾病风险基因周围. 这表明成人数据足以研究儿科自身免疫性疾病.
科学领域:
- 基因组学就是基因组学.
- 免疫学 免疫学 免疫学
- 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:
- 了解3D基因组对于自身免疫性疾病研究至关重要.
- 细胞类型特定的3D基因组组织提出了关于在儿科研究中使用细胞系和成人数据的问题.
研究的目的:
- 将儿科B细胞中的3D基因组特征与成人数据进行比较.
- 在自身免疫性疾病风险位点 (JIA,SLE,T1D) 调查3D基因组结构.
主要方法:
- HiChIP使用来自儿科捐赠者 (年龄9-17岁) 的B细胞上的CTCF抗体.
- 使用儿科数据,ENCODE GM12878细胞系数据和ENCODE成人初级B细胞数据进行CTCF峰值和循环调用.
- 评估数据集之间的差异循环.
主要成果:
- 儿科B细胞3D基因组架构在儿科,成人和细胞系数据集中高度保留.
- 在比较儿科和成人/细胞系数据时,不到1%的循环显示出显著差异.
- 保护范围扩展到含有自身免疫性疾病风险区域的地区.
结论:
- B细胞中的3D染色体结构在儿科,成人和细胞系样本中是一致的.
- 公共可用的成人B细胞和细胞系数据集可能足以用于儿童自身免疫性疾病的3D基因组研究.
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