大脑亚区域基因表达对炎症性肠道疾病的因果作用,由门德尔随机化和单细胞分析揭示
Yuan Li1, Yao Wang1, Simeng Chen1
1Department of General Surgery, The First Affiliated Hospital with Nanjing Medical University, Nanjing, 210029, China.
Scientific reports
|July 2, 2025
概括
肠-大脑轴在炎症性肠病 (IBD) 中发挥着作用. 大脑基因表达模式与IBD风险有关,特定的基因和细胞类型被确定为潜在的目标.
科学领域:
- 遗传学 是一个遗传学.
- 神经科学是一个神经科学.
- 胃肠病学 胃肠病学
背景情况:
- 炎症性肠病 (IBD),包括性结肠炎 (UC) 和克罗恩病 (CD),是慢性胃肠道疾病.
- 肠-大脑轴,一个复杂的通信网络,涉及到各种生理过程,但其在IBD病原体中的具体作用仍然不完全理解.
研究的目的:
- 研究特定大脑区域的基因表达与发展IBD的风险之间的因果关系.
- 确定潜在的分子机制和细胞来源,将大脑功能与IBD联系起来.
主要方法:
- 孟德尔随机化分析被用来评估大脑亚区域eQTL和IBD之间的因果关系.
- 转基因omics方法集成的单细胞RNA测序数据从大脑和肠道组织与基因组eQTLs.
- 现象广泛关联研究 (PheWAS) 用于探索显著遗传位置的表型关联.
主要成果:
- 大脑eQTLs在多个独立队列中显示出与IBD易感性的显著关联.
- 小脑,小脑半球和皮质显示出与IBD有着显著的联系.
- 鉴定出CCDC88B和NAGLU等基因是IBD的潜在因果候选者,树突细胞和上皮细胞被认为是细胞来源.
结论:
- 这项研究提供了大脑-肠轴在IBD病变发生过程中的参与的证据.
- 确定了候选基因和细胞通路,为IBD易感性和潜在的治疗策略提供了新的见解.
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