在冷溶液中的抗蛋白I对体内衍生的绵羊胚胎的影响
Lucas F L Correia1, Gabriela R Leal1, Felipe Z Brandão1
1Faculdade de Veterinária, Universidade Federal Fluminense, Av. Vital Brazil Filho, 64, CEP 24230-340 Niterói, RJ, Brazil.
Research in veterinary science
|January 6, 2024
概括
将抗蛋白I型 (AFP I) 添加到绵羊胚胎冷溶液中,可以改善线粒体活动和化率,而不会影响整体存活率. 这表明AFP I可以提高羊胚胎的冷保存结果.
科学领域:
- 生殖生物学 生殖生物学
- 低温生物学 低温生物学
- 分子生物学分子生物学
背景情况:
- 哺乳动物胚胎的冷保存对于牲畜的繁殖和保护至关重要.
- 缓慢冷是一种常见的方法,但冷损伤可以降低胚胎的生存能力.
- 抗蛋白 (AFP) 显示出在冷过程中减轻冰晶形成和细胞损伤的潜力.
研究的目的:
- 研究不同度的抗蛋白I型 (AFP I) 对用慢速冷方法冷保存羊的体外胚胎的影响.
- 评估AFP I对胚胎活力,线粒体活动,氧化应激和解后基因表达的影响.
主要方法:
- 绵羊胚胎被冷保存,使用缓慢冷方法,使用不同的AFP I度 (0,0.1和0.5微克/毫升).
- 解后的胚胎经过了48小时的体外培养,评估了细胞活力,细胞亡,线粒体活性,活性氧物种 (ROS) 和谷氨 (GSH).
- 对关键代谢和与质量相关的基因进行基因表达分析 (RT-qPCR) 在解后24小时.
主要成果:
- 在AFP I治疗组和对照组之间没有观察到总体体外生存率的显著差异.
- 在0.1μg/mL的AFP I组中,发现了更高的胚胎细胞化率的趋势.
- 与对照组相比,在0.1μg/mL的AFP I组中观察到24小时内线粒体活性增加,在不同治疗方法中观察到特定的基因表达变化 (例如CDH1,AQP3,HSP70,BCL2).
结论:
- 将AFP I添加到缓慢冷溶液中,显示了在体内衍生胚胎中冷保存的绵羊的潜在益处,特别是在增强线粒体活动和化率方面.
- AFP I并没有对胚胎存活率产生负面影响,这表明它具有良好的安全性.
- 对最佳AFP I度及其分子效应的进一步研究是有必要的,以最大限度地提高羊胚胎冷保存的效率.
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