玻璃化在3D体外卵泡发育和卵细胞成熟系统中保存了卵细胞转录组
Jiyang Zhang1, Wenlong Zhao1, Samantha Cheron1
1Department of Pharmacology and Toxicology, Ernest Mario School of Pharmacy, Environmental and Occupational Health Sciences Institute (EOHSI), Rutgers University, Piscataway, NJ 08854, USA.
Biology of reproduction
|April 24, 2025
概括
玻璃化是一种保存卵子和胚胎的方法,在体外毛囊发育和成熟过程中保持卵细胞转录组. 这支持其在生育保护中的使用.
科学领域:
- 生殖生物学 生殖生物学
- 低温生物学 低温生物学
- 基因组学就是基因组学.
背景情况:
- 玻璃化是辅助生殖技术 (ART) 中的一个关键技术,用于冷保存性子和胚胎.
- 之前的研究证实了玻璃化在保持毛囊活力和功能方面的有效性.
- 在体外开发过程中对卵细胞转录组的玻璃化影响仍未得到研究.
研究的目的:
- 为了确定玻璃化是否在体外卵泡生长和成熟期间保留卵细胞转录组.
- 与新鲜对照相比,在玻璃化和加热后评估卵细胞的基因表达特征.
主要方法:
- 未成熟的小鼠前腔毛囊被玻璃化,加热,并在体外培养8天.
- 从玻璃化和新鲜的毛囊中收集了生殖囊 (GV) 和元相II (MII) 阶段的卵子.
- 进行了单卵细胞Smart-Seq2RNA测序,随后进行了主要成分和差异基因表达分析.
主要成果:
- 主要成分分析显示,新鲜卵泡和玻璃化卵泡的卵细胞之间的转录组分差异很小.
- 不同基因表达分析揭示了与介质和发育能力相关的关键基因的可比表达.
- 在胚芽囊中转移到第II阶段的过程中观察到显著的转录组变化,涉及与细胞周期和RNA处理相关的基因.
结论:
- 玻璃化有效地保留了卵细胞转录组在体外毛囊发育和成熟过程中.
- 这些发现支持使用玻璃化来保护生育能力.
- 在卵细胞成熟期间识别出差异表达的基因可能在发育能力方面发挥关键作用.
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