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TBX3对于生殖器基因组激活和猪胚胎发育至关重要

Xiao-Han Li¹, Song-Hee Lee¹, Ji-Dam Kim¹

¹Department of Animal Science, Chungbuk National University, Cheongju, Chungbuk 28644, Republic of Korea.

Microscopy and microanalysis : the official journal of Microscopy Society of America, Microbeam Analysis Society, Microscopical Society of Canada

|January 13, 2025

概括

TBX3对于猪胚胎的发育至关重要,它调节素乙化,胚胎基因组激活和多能性基因表达. 它的枯竭会损害早期胚胎发育,并诱导细胞亡.

科学领域:

发展生物学发展生物学
表观遗传学在表观遗传学中,表观遗传学是指表观遗传学.
哺乳动物胚胎发生

背景情况:

一个T-盒转录因子TBX3对于小鼠胚胎干细胞自我更新和器官发育至关重要.
它在猪植入前胚胎发育中的特定作用尚不清楚.

研究的目的:

调查TBX3在猪早期胚胎发育中的功能.
探索TBX3作用背后的分子机制.

主要方法:

在使用dsRNA注射的猪胚胎中,TBX3被击倒了.
分析了TBX3,基因组修饰 (H3K9Ac,H3K27Ac),多能性基因 (NANOG,OCT4) 和亡标记物的表达水平.
评估了紫毒基因组激活 (ZGA) 基因表达和DNA损伤.

主要成果:

在胚胎早期发育过程中,TBX3的表达增加.
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TBX3的耗尽增加了DNMT1和5-甲基细胞素 (5mc) 水平,导致端粒缩短和DNA损伤.
基因组乙化和多能性基因表达 (NANOG,OCT4) 在囊胚细胞中显著降低,随着亡的增加.

结论:

TBX3 调节素乙化,对猪的胚胎基因组激活和早期胚胎发育至关重要.
TBX3在维持基因组稳定性和在植入前发育过程中预防亡方面发挥着至关重要的作用.

关键词:

这是TBX3的TBX3.ZGAGA ZGA 是一个胚胎发育过程中的胚胎发育.基因素乙化基因素乙化基因素乙化猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪

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