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酸盐代谢控制CD4T细胞激活期间的染色质重塑+
Enric Mocholi1, Laura Russo1, Keshav Gopal2
1Center for Molecular Medicine, University Medical Center Utrecht, Utrecht, the Netherlands; Regenerative Medicine Center, University Medical Center Utrecht, Utrecht, the Netherlands.
Cell reports
|June 2, 2023
概括
酸盐脱酶 (PDH) 产生乙-CoA,从而推动基因素乙化和CD4+ T细胞激活. 准这种代谢途径为调节T细胞反应提供了一种新的治疗策略.
科学领域:
- 免疫学 免疫学 免疫学
- 代谢途径 代谢途径
- 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:
- 在激活后,CD4+ T细胞经历了显著的代谢和转录变化.
- 通过像p300这样的酶调节的素乙化,在T细胞分化中起着至关重要的作用.
- 代谢重编程对于支持激活的T细胞的高能量需求至关重要.
研究的目的:
- 为了研究外线线粒体的酸盐代谢在T细胞激活中的作用.
- 为了阐明酸盐脱酶活性与基因素乙化之间的联系.
- 探索针对T细胞介导免疫的治疗干预的代谢途径的潜力.
主要方法:
- 对缺乏酸盐脱酶 (PDH) 的T细胞的分析.
- 基斯修饰试验 (H3K27ac).
- 转录基因分析.转录基因分析.
- 碳追踪实验. 碳追踪实验.
- 免疫光检测PDH的核转位.
主要成果:
- 在T细胞激活过程中,由外线粒体酸盐衍生的乙-CoA对H3K27ac介导的质子重塑至关重要.
- PDH活性是T细胞激活的乙-CoA生成的速度限制步骤.
- T细胞激活诱导PDH的核转位,该转位与p300和基因素H3K27ac.相关.
- 这些发现突出了代谢酶和表观遗传修饰剂的整合.
结论:
- 代谢重编程,特别是PDH依赖的乙-CoA生产,与驱动CD4+T细胞激活的表观遗传修饰紧密相关.
- 准PDH-p300-H3K27ac轴为调节抗原驱动的T细胞反应提供了一个有希望的治疗策略.
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