通过Drosophila的染色质调节,NF-κB抑制了依赖营养的转录程序
Xiangshuo Kong1,2, Conghui Li1, Jason Karpac1,2
1Department of Biology, Texas A&M University, College Station, TX 77843, United States.
Nucleic acids research
|January 15, 2026
概括
天生的免疫转录因子,如核因子kB (NF-kB),可以在表观遗传上抑制细胞代谢. 这一发现揭示了一种用于微调营养物质依赖的新陈代谢适应应饮食变化的新奇机制.
科学领域:
- 免疫学 免疫学 免疫学
- 代谢调节 代谢调节 代谢调节
- 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:
- 免疫和代谢系统共同进化,免疫信号通路控制细胞代谢.
- 天生的免疫转录因子,如核因子 κB (NF-κB),是代谢适应饮食和营养的关键调节者.
研究的目的:
- 为了研究草 NF-κB (Relish) 在调节依赖营养的代谢转录程序中的作用.
- 阐明NF-κB控制细胞代谢的表观遗传机制.
主要方法:
- 染色体可访问性基因组学用于识别NF-κB向基因.
- 在代谢基因基因位点上进行素乙化分析.
- 有针对性的基因查,以识别相互作用的蛋白质,包括基因素脱乙酶 6.
主要成果:
- 草 NF-κB (Relish) 抑制了依赖营养的代谢转录程序,其作用与其正规激活器功能不同.
- NF-κB/Relish通过基因素乙化限制了染色质的可访问性,限制了代谢基因转录.
- 海斯脱乙酶6与NF-κB/Relish相互作用,通过限制染色质可访问性来抑制代谢程序.
结论:
- 天生的免疫转录因子可以在表观遗传上抑制细胞代谢.
- 通过表观遗传抑制,NF-κB在微调依赖营养的代谢适应中发挥着新的作用.
- 这项研究揭示了免疫力和新陈代谢交集的新调节层.
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