猪器官来源于纯真类胚胎干细胞
Meishuang Li1,2, Xiyun Guo1,2, Linxin Cheng1,2
1Jiangsu Key Laboratory of Xenotransplantation, Nanjing Medical University, Nanjing 211166, China.
International journal of molecular sciences
|January 11, 2024
概括
科学家们从猪干细胞中开发出新的猪器官. 这些器官模仿脏的结构和功能,为测试用于异种移植的免疫抑制剂提供了潜在的模型.
科学领域:
- 再生医学是一种再生医学.
- 异种移植研究 异种移植研究
- 干细胞生物学 干细胞生物学
背景情况:
- 末期功能衰竭需要器官移植,因为捐赠的稀缺性.
- 猪器官对异种移植有希望,但面临免疫性排斥挑战.
研究的目的:
- 从猪原始类ESC (nESC) 产生猪器官.
- 描述这些猪器官的发育和功能.
- 评估它们作为异种移植中免疫抑制剂查模型的潜力.
主要方法:
- 使用CHIR99021和FGF9诱导,从猪原始类ESC生成猪器官.
- 分析了器官结构,矩阵组件和标记物 (AQP1,WT1,PODO,CD31) 的表达.
- 德克斯的吸收功能被评估以评估功能.
主要成果:
- 生成的猪器官体表现出管状结构和细胞外矩阵组件.
- 器官体表达了关键的细胞标记物,表明了近道管体,细胞和血管内皮细胞的发展.
- 猪体有机体表现出的吸收功能,并含有血管内皮细胞,这对于研究免疫排斥至关重要.
结论:
- 从猪的NESC成功生成了猪脏器官.
- 这些有机体具有关键的细胞类型,结构和吸收功能.
- 猪器官是一种有价值的临床前模型,用于评估异种移植中的免疫抑制剂.
相关概念视频
01:56Gastrulation
Gastrulation establishes the three primary tissues of an embryo: the ectoderm, mesoderm, and endoderm. This developmental process relies on a series of intricate cellular movements, which in humans transforms a flat, “bilaminar disc” composed of two cell sheets into a three-tiered structure. In the resulting embryo, the endoderm serves as the bottom layer, and stacked directly above it is the intermediate mesoderm, and then the uppermost ectoderm. Respectively, these tissue strata will form...
01:10Zygotic 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...