从小鼠多能干细胞生成卵巢毛囊
Takashi Yoshino1, Takahiro Suzuki2,3, Go Nagamatsu1
1Department of Stem Cell Biology and Medicine, Graduate School of Medical Sciences, Kyushu University, Higashi-ku, Fukuoka 812-8582, Japan.
Science (New York, N.Y.)
|August 26, 2021
概括
研究人员在实验室培养的卵巢环境中从干细胞中制造出功能性小鼠卵细胞. 这一突破的试管卵细胞生产有助于我们更好地了解哺乳动物的繁殖和卵泡的产生.
科学领域:
- 生殖生物学
- 发育生物学
- 干细胞科学
背景情况:
- 卵细胞在卵巢毛囊中成熟,为半球变异和生殖细胞发育提供必要的信号.
- 现有的方法可以使用胚胎卵巢体细胞在培养中从多能干细胞衍生的原始生殖细胞类细胞 (PGCLC) 产生功能性卵细胞.
- 复制的卵巢环境对于体外卵子成熟至关重要.
研究的目的:
- 开发培养条件,模仿多能细胞逐步分化为胎儿卵巢体细胞样细胞 (FOSLC).
- 研究聚合的FOSLC和PGCLC在体外产生功能性卵子细胞的潜力.
- 建立一个用于哺乳动物生殖的体外卵细胞生产和卵泡生成的方法.
主要方法:
- 开发了特殊的培养条件,使多能细胞分化为胎儿卵巢体细胞样细胞 (FOSLC).
- 聚合生成的FOSLC与小鼠胚胎干细胞衍生的原始生殖细胞样细胞 (PGCLC).
- 培养聚合细胞观察PGCLC的发育和卵细胞的成熟.
主要成果:
- 通过逐步分化成功生成胎儿卵巢体细胞样细胞 (FOSLC).
- 当与PGCLC聚合时,FOSLC支持PGCLC进入半转化.
- 这一过程产生了能够受精并发育为活生的卵细胞.
结论:
- 重建一个阶段性分化过程允许在体外生成功能性的胎儿卵巢体细胞.
- 将这些细胞与PGCLC聚合在复制的卵巢环境中成功生成功能性小鼠卵细胞.
- 这种方法为体外卵细胞生产和卵泡生成提供了一种新方法,增强了哺乳动物生殖的研究.
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