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Chromatin modification alters gene expression; therefore, scientists can add histone-modifying enzymes, histone variants, and chromatin remodeling complexes to somatic cells to aid reprogramming into pluripotent stem (iPS) cells.
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Investigation of Beige Fat Biology and Metabolism Using the CRISPR SunTag-p65-HSF1 Activation System
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与衰老相关的素甲基转移酶SUV39H1在增强SASPP的脂肪衍生干细胞中的衰老相关的下降.

Ruoyu Li1, Yungshan Teng1, Yuqing Guo1

  • 1Hospital of Stomatology, Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou, PR China; Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, PR China.

Mechanisms of ageing and development
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概括
此摘要是机器生成的。

变异3-9同源1抑制剂 (SUV39H1) 通过调节染色素来抑制与衰老相关的分泌表型 (SASP),为衰老和炎症提供了新的见解.

关键词:
衰老的衰老 衰老的衰老希斯甲基化 希斯甲基化在 SASP 找 SASP这是一辆SUV39H1.

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科学领域:

  • 表观遗传学和分子生物学
  • 衰老研究研究 衰老研究
  • 细胞衰老 细胞衰老

背景情况:

  • 衰老与慢性炎症有关,称为"炎症".
  • 细胞衰老涉及与衰老相关的分泌表型 (SASP) 与炎症因素.
  • 表观遗传调节,特别是染色质结构,影响SASP.

研究的目的:

  • 研究SUV39H1在衰老中的作用及其对SASP的表观遗传调节.
  • 澄清SUV39H1在衰老中的有争议的功能.

主要方法:

  • 使用的C57BL/6J CAG-Cre;SUV39H1淘汰赛小鼠.
  • 采用了辐射诱导的细胞衰老模型.
  • 进行了体内和体外实验.

主要成果:

  • 随着年龄的增长,SUV39H1水平会下降.
  • SUV39H1作为SASP的抑制剂,特别是IL-6,MCP-1和Vcam-1的抑制剂.
  • 在SASP因子的促进区域中,SUV39H1改变了H3K9me3的丰富.

结论:

  • SUV39H1在衰老过程中对SASP的表观遗传调节起着至关重要的作用.
  • 这些发现为连接表观遗传学,衰老和炎症的机制提供了新的见解.