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相关概念视频

Spermatogenesis01:41

Spermatogenesis

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Spermatogenesis is the process by which haploid sperm cells are produced in the male testes. It starts with stem cells located close to the outer rim of seminiferous tubules. These spermatogonial stem cells divide asymmetrically to give rise to additional stem cells (meaning that these structures “self-renew”), as well as sperm progenitors, called spermatocytes. Importantly, this method of asymmetric mitotic division maintains a population of spermatogonial stem cells in the male...
91.1K

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相关实验视频

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Step-specific Sorting of Mouse Spermatids by Flow Cytometry
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在小鼠丸中的老鼠精子生成.

D E Clouthier1, M R Avarbock, S D Maika

  • 1Laboratory of Reproductive Physiology, School of Veterinary Medicine, University of Pennsylvania, Philadelphia 19104, USA.

Nature
|May 30, 1996
PubMed
概括
此摘要是机器生成的。

从老鼠移植到小鼠的精子干细胞移植成功产生了老鼠精子. 这种异种方法对跨物种生殖系干细胞应用和生育恢复有希望.

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科学领域:

  • 生殖生物学 生殖生物学
  • 干细胞生物学 干细胞生物学
  • 异种移植 (Xenotransplantation) 是一种异种移植方法.

背景情况:

  • 精子干细胞 (SSC) 对男性生育能力至关重要.
  • 以前的研究表明,在小鼠体内成功移植SSC.
  • 跨物种SSC移植的潜力在很大程度上仍未被探索.

研究的目的:

  • 调查异源性SSC移植的可行性.
  • 为了确定大鼠SSC是否可以在小鼠丸环境中建立精子生成.
  • 评估从另一种物种的移植细胞中产生功能精子的潜力.

主要方法:

  • 将标记的老鼠丸细胞移植到免疫缺陷小鼠丸中.
  • 随着时间的推移,监测接受者小鼠的精子生成的发展.
  • 接受者肺炎中的精子体的形态分析.

主要成果:

  • 从10个接受者的20个小鼠丸中,在19个小鼠丸中成功确定了老鼠精子生成.
  • 在移植超过110天的小鼠的皮膜上发现了具有正常形态的老鼠精子.
  • 该研究证明了SSCs的成功异种植和分化.

结论:

  • 来自一种物种的精子干细胞可以在另一种物种的丸中产生功能性雌同体.
  • 这项研究验证了SSC移植对异种精子生成的潜力.
  • 这些发现为跨物种生殖系干细胞应用和潜在的生育治疗开辟了道路.