在猪早期发育过程中识别SWI/SNF亚复合体GBAF存在,复合体内相互作用和转录动态
Sarah Innis1, Aktan Alpsoy2, Jennifer Crodian1
1Department of Animal Sciences, Purdue University, West Lafayette, IN 47907, USA.
Animals : an open access journal from MDPI
|March 13, 2024
概括
包括BRD9和GLTSCR1子单元在内的GBAF染色体重塑复合体,在整个猪早期发育过程中都存在. 这项研究揭示了GLTSCR1和BAF170之间的新型相互作用,表明GBAFF.
科学领域:
- 表观遗传学和发育生物学
- 哺乳动物发展 哺乳动物发展
- 动物遗传学 动物遗传学
背景情况:
- 表观遗传机制对于动物的生长和发育至关重要,但它们在牲畜中的作用仍未得到充分研究.
- GBAF染色体重塑复合体是一个关键的表观遗传调节器,但其在早期哺乳动物发育中的功能需要进一步调查.
- 了解这些过程对于提高畜牧生产效率和动物健康至关重要.
研究的目的:
- 调查猪胚胎和胎儿发育期间GBAF染色体重塑复合物的存在和作用.
- 确定GBAF子单元之间的相互作用,并分析它们在猪早期发育中的转录动态.
- 阐明GBAF对哺乳动物关键发育事件的贡献.
主要方法:
- 免疫细胞化学和共免疫沉被用来检测猪卵细胞,胚胎和细胞系中的GBAF亚单元 (BRD9,GLTSCR1).
- 分析现有的RNA-seq数据集,以确定GBAF子单元在关键发育阶段的转录动态.
- 研究GBAF复合体内的蛋白质-蛋白质相互作用.
主要成果:
- 在所有检查的猪早期发育阶段检测到GBAF复合物的BRD9和GLTSCR1子单元.
- 在猪细胞系 (PTr2和PFF) 中发现了GLTSCR1和BAF170之间的新型相互作用.
- 转录动态表明GBAF子单元在关键发育事件中的特定作用.
结论:
- 在猪早期发育过程中,GBAF染色体重塑复合体无处不在.
- 鉴定的GLTSCR1-BAF170相互作用在猪发育中呈现出一种潜在的新机制.
- 这项研究增强了对哺乳动物发育中的表观遗传调节的理解,突出了GBAF的作用.
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