猪子宫内膜细胞衍生外细胞囊泡的蛋白质学分析,涉及到胚胎附着的过程
Seonggyu Bang1, Ahmad Yar Qamar2, Sang-Yeop Lee3
1College of Veterinary Medicine and Research Institute for Veterinary Science, Seoul National University, Seoul, Republic of Korea; College of Veterinary Medicine, Chungnam National University, Daejeon, Republic of Korea.
Molecular & cellular proteomics : MCP
|March 13, 2025
概括
来自受激素治疗的猪子宫内膜细胞的细胞外囊泡 (EV) 在体外显著改善了胚胎的附着. 这些富含特定蛋白质的EV增强了植入和早期发育,为生殖技术提供了洞察力.
科学领域:
- 生殖生物学 生殖生物学
- 细胞和分子生物学 细胞和分子生物学
- 生物化学 生物化学
背景情况:
- 母胎相互作用对哺乳动物发育至关重要.
- 细胞外囊泡 (EVs) 中介细胞间通信,转移RNA,蛋白质和代谢物.
- 了解子宫内膜EVs在支持胚胎发育中的作用至关重要.
研究的目的:
- 调查来自猪子宫内膜细胞的EVs (pEEC-EVs) 及其蛋白质载荷对胚胎发育的影响.
- 评估激素治疗对pEEC-EVs的影响及其对胚胎细胞附着的影响.
- 在不同的荷尔蒙条件下分析EV的蛋白质差异.
主要方法:
- 使用纳米粒子追踪分析和冷传输电子显微镜对pEEC-EVs的表征.
- 在实验室中评估化胚芽细胞与pEEC-EV连接的情况,有或没有激素治疗.
- 对EV蛋白载荷进行蛋白质组学分析,以确定差异表达的蛋白质和途径.
主要成果:
- 当暴露于pEEC-EVs时,激素治疗显著增加了猪胚胎囊的附着率 (36.9%与23.0%相比).
- 蛋白质组分析显示,对照和荷尔蒙治疗的EV之间存在不同的蛋白质配置和生物过程.
- 用激素治疗的EVs在与蛋白质运输,免疫调节和应激反应相关的途径中得到了丰富,而控制EVs支持细胞骨组织和粘附.
结论:
- 猪子宫内膜EV在母胚沟通中起着至关重要的作用,影响植入.
- 激素治疗调节了EV的蛋白质组成,增强了它们支持胚胎发育的能力.
- 这些发现表明,EV在改善生殖健康和辅助生殖技术方面的潜在应用.
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