相关实验视频

Updated: Sep 20, 2025

Protocol for Human Blastoids Modeling Blastocyst Development and Implantation

Protocol for Human Blastoids Modeling Blastocyst Development and Implantation

Published on: August 10, 2022

牛外胚胎内皮干细胞的形成使得有效的布拉斯泰菌形成成为可能

Hao Ming¹, Giovanna Nascimento Scatolin¹, Oscar Alejandro Ojeda-Rojas²

¹Department of Animal Sciences, Genetics Institute, University of Florida, Gainesville, FL 32610, USA.

|May 22, 2025

概括

研究人员开发了一种化学尾酒,从胚胎细胞中提取牛外胚胎内皮干细胞 (bXEN). 这些bXENs和由此产生的Blastoids为研究早期胚胎发育和改善牲畜生殖提供了新的模型.

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
发展生物学发展生物学

背景情况:

外胚内皮干细胞 (XENs) 对于了解早期胚胎发育和构建体外胚胎模型至关重要.
之前还没有确定牛XENs (bXENs),这限制了牛胚胎发生的研究.

研究的目的:

建立一种方法,从胚芽细胞中进行牛XENs (bXENs) 的新衍生和长期培养.
描述bXENs并评估它们在构建牛Blastoid中的潜力.
探索bXENs和blastoids作为牛胚胎生成和生殖效率模型的实用性.

主要方法:

使用一种特定的化学尾酒 (FGF4,BMP4,IL-6,XAV939,A83-01) 来从牛胚囊中提取bXEN.
转录组和表观组分析以确认bXEN的身份和血统相似性.
与牛扩展多能干细胞 (EPSC) 和用于形成布拉斯的 trofhoblast干细胞的bXENs共同培养.
干细胞类型的3D组装以产生Blastoids.

主要成果:

牛XENs (bXENs) 的成功de novo衍生和长期培养.
转录基因和表观基因组数据证实bXENs类似于早期的牛低质细胞系.
bXENs保持了EPSC的干性,并阻止了它们的分化.
化学尾酒支持发育胚胎中的表皮质细胞生长.
通过对bXENs,EPSCs和热囊细胞干细胞的3D组装,有效地产生了类似于胚芽细胞的牛胎状细胞.

结论:

一种新的化学尾酒使得牛XENs (bXENs) 的衍生和培养成为可能.
已确立的bXEN和Blastoid作为宝贵的体外模型用于牛胚胎生成研究.
这些模型有可能提高家畜的生殖效率.

关键词:

科普:干细胞研究在EPSC中,EPSC的领导人.这就是TSC的特点.XEN XEN 是一个XEN.辅助生殖技术是一种辅助生殖技术.胚胎细胞囊中的胚胎囊.布拉斯托伊德 (Blastoid) 是一种类型的牛肉类的牛肉类的牛肉类.经皮质细胞是什么?低血清细胞的低血清细胞.热囊细胞的热囊细胞.

更多相关视频

Blastomere Explants to Test for Cell Fate Commitment During Embryonic Development

Blastomere Explants to Test for Cell Fate Commitment During Embryonic Development

Published on: January 26, 2013

Derivation of Mouse Trophoblast Stem Cells from Blastocysts

Derivation of Mouse Trophoblast Stem Cells from Blastocysts

Published on: June 8, 2010

相关概念视频

Zygotic Development And Stem Cell Formation

Zygotic Development And Stem Cell Formation

The development of all multicellular organisms starts with the fusion of haploid cells called sperm and egg to form a diploid zygote. A zygote is a totipotent cell that can develop into a complete organism. The zygote undergoes cell division or cleavage to form an 8-cell mass. Until this stage, the cells are spherical, loosely attached, and remain totipotent. Totipotent cells are capable of developing both the embryonic and the extraembryonic tissues. However, as they continue to divide, they...

Embryonic Stem Cells

Embryonic Stem Cells

Embryonic stem (ES) cells are undifferentiated pluripotent cells, meaning they can produce any cell type in the body. This gives them tremendous potential in science and medicine since they can generate specific cell types for use in research or to replace body cells lost due to damage or disease.

Cleavage and Blastulation

Cleavage and Blastulation

After a large-single-celled zygote is produced via fertilization, the process of cleavage occurs while zygotes travel through the uterine tube. Cleavage is a mitotic cell division that does not result in growth. With each round of successive cell division, daughter cells get increasingly smaller.