基因查发现BEND3是双价基因表达和全球DNA甲基化调节剂
Lounis Yakhou1, Anaelle Azogui1, Nikhil Gupta1
1Université Paris Cité, CNRS, Epigenetics and Cell Fate, F-75013 Paris, France.
Nucleic acids research
|August 31, 2023
概括
研究人员确定BEND3是双价促销物的关键调节者,影响基因表达和DNA甲基化. 失去BEND3会导致广泛的DNA甲基化变化,影响细胞的身份和发育.
科学领域:
- 表观遗传学和染色质调节
- 哺乳动物的发育和细胞身份.
- 控制基因表达 控制基因表达
背景情况:
- 表观遗传机制通过调节基因表达和染色质结构来维持细胞身份.
- 双对应促进体对于哺乳动物的分化和发育至关重要.
- 表观遗传标记的失调与癌症等疾病有关.
研究的目的:
- 通过基因选,识别双价抑制基因的新型调节体.
- 阐明BEND3在调节双价促进体中的作用及其对表观遗传学的更广泛影响.
主要方法:
- 基因查以确定双价抑制基因的调节者.
- 对BEND3对特定DNA序列的招募分析.
- 在BEND3缺乏细胞中进行全基因组DNA甲基化和基甲基化分析.
主要成果:
- BEND3 调节了数百个双价促销者,它们既有抑制作用,也有激活作用.
- 在双价促销者中,BEND3与特定的CpG含有的共识站点结合.
- BEND3的损失导致全基因组DNA甲基化增长和DNA基甲基化减少,影响TET酶活性.
结论:
- BEND3是一种重要的染色质调节剂,在表观遗传控制中具有直接和间接的作用.
- BEND3的功能为复杂的双价促剂调节提供了新的见解.
- 改变BEND3功能可能会导致发育异常和疾病发病.
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