牛子宫内膜驱动和响应在体外生产的概念生物化学的分歧
Katheryn D Peterson1, Mary A Oliver2, Trevor F Freeman1
1Department of Animal Science, University of Tennessee, Knoxville, Tennessee, USA.
概括
在体外生产的牛胚胎具有较低的妊娠存活率. 研究表明,母亲是母亲.
科学领域:
- 生殖生物学 生殖生物学
- 胚胎学 胚胎学
- 基因组学就是基因组学.
背景情况:
- 在试验室生产的 (IVP) 牛胚胎对于基因改进和生殖技术至关重要.
- 然而,IVP胚胎在移植后的第一个妊娠月内表现出较低的妊娠存活率 (<50%).
- 输卵子胚胎和移植后的母子宫内膜之间的相互作用尚不清楚.
研究的目的:
- 为了研究体外产生的 (IVP) 和体内衍生的 (IVD) 牛概念体和母子宫内膜之间的相互相互作用.
- 在体外生产后,在怀孕早期确定概念体和子宫内膜的分子变化.
主要方法:
- 采用了16天的牛概念-子宫内膜单种植和共种植系统.
- 综合性转录组分析以识别胚胎和子宫内膜中差异表达基因 (DEGs).
- 采用培养基的蛋白质组分析来评估蛋白质丰度差异.
主要成果:
- 只有在与子宫内膜 (377个DEG) 共同培养后,IVP概念性基因表达与IVD概念性基因表达有所不同.
- 其中,81%的IVP概念性DEG (21%) 与异常的胚胎/胎儿发育有关.
- 由IVP概念产生的子宫内膜DEG与GTPase活性和炎症反应有关,包括增加MHCII类表达.
- 蛋白质组分析揭示了共同培养媒介中的差异性蛋白质丰富性,这表明IVP概念用户的潜在次优环境.
结论:
- 孕产妇子宫内膜影响并响应IVP牛概念体中的生化差异.
- 这些相互作用,特别是炎症反应和改变的蛋白质组概况,可能导致IVP胚胎中观察到的高怀孕失败率.
- 了解这些概念-子宫内膜动态对于提高IVP胚胎成功率至关重要.
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