1184-MASLD风险变异的转录调控功能综合分析 episode artwork

EPISODE · Jun 25, 2026 · 22 MIN

1184-MASLD风险变异的转录调控功能综合分析

from 聊聊Sci

这项研究通过整合分析揭示了非编码遗传变异如何驱动代谢功能障碍相关脂肪性肝病(MASLD)的发病机制。研究人员利用单细胞染色质可及性测序技术,在患者肝脏中精准定位了富集疾病风险变异的特定细胞类型,重点关注了肝细胞及星状细胞的调控网络。通过大规模平行报告基因检测(MPRA),科学家们鉴定出数百个具有差异活性的功能变异位点(DAVs),这些位点会根据细胞类型和环境刺激(如脂肪酸或炎症因子)改变基因表达。研究进一步证实,这些关键变异通过干扰特定的转录因子结合,直接调控脂质代谢和肝纤维化进程。最终,这些发现不仅建立了非编码变异与肝脏病理之间的功能联系,还为提高MASLD的遗传风险预测提供了更精确的分子框架。References:Zhu B, He N, Xiao Y, Chen B, Li C, Mandla R, Liu Y, Zhang J, Chang X, Yu F, Vujkovic M, Lynch JA, Chang KM; VA Million Veteran Program; Pasaniuc B, Rader DJ, Lazar MA, Hu W. Integrative analyses elucidate transcriptional regulatory functions of risk alleles for metabolic liver disease. Nat Genet. 2026 Jun 2. doi: 10.1038/s41588-026-02617-8. Epub ahead of print. PMID: 42230773.前往小宇宙评论区与主播互动

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