相关实验视频

Updated: May 28, 2025

Preparation and Gene Modification of Nonhuman Primate Hematopoietic Stem and Progenitor Cells

Preparation and Gene Modification of Nonhuman Primate Hematopoietic Stem and Progenitor Cells

Published on: February 15, 2019

在转移转基因猪红血细胞后,非人类灵长类动物的补充激活和血液溶解

Hee Jung Kang¹, Juhye Roh¹, Haneulnari Lee¹

¹Department of Laboratory Medicine, Hallym University Sacred Heart Hospital, Hallym University College of Medicine, Anyang, Korea.

Annals of laboratory medicine

|February 11, 2025

概括

将猪红细胞 (RBC) 输入非人类灵长类动物 (NHPs) 中会触发免疫反应. 补充激活水平与红细胞存活相关,提供了对异体输血兼容性的见解.

科学领域:

免疫学免疫学免疫学
输血医学输血医学
异种移植 (Xenotransplantation) 是一种异种移植方法.

背景情况:

猪红细胞 (RBC) 在非人类灵长类动物 (NHPs) 中由于免疫反应而迅速被消除.
抗体结合和补体激活是这种免疫反应的关键机制.

研究的目的:

评估输血后血液溶解和补体激活之间的关系.
为了研究猪红细胞中的遗传修饰对补体激活的影响.

主要方法:

将野生类型 (WT),三重淘汰赛 (TKO) 和转基因TKO猪红细胞输入NHP.
输血后测量血红蛋白 (Hb) 水平,补充片段 (C3a,C4a,Bb因子) 和凝结位.
与NHP红细胞输血和盐水输液的比较.

主要成果:

输血恢复了Hb水平,与盐水输液不同.
异种输血,特别是重复的异种输血 (ReXTf),显示出C3a和Bb因子的显著增加.
补充激活水平与输血后第一天的Hb水平负相关.
与TKO红细胞相比,基因修饰 (TKO/hCD55.hCD39) 延迟了峰值补充激活.

结论:

输血后补体激活受到猪红细胞的先前敏感化和遗传修饰的影响.
监测补充剂激活提供了对输血红细胞在NHPs的生存和兼容性的洞察.

关键词:

聚合位是指聚合位.所有输血输血都是输血.补充激活的激活方式这就是Bbb因子.非人类灵长类动物.猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪红细胞是血液中的红细胞.在Xenotransfusion中使用Xenotransfusion.

更多相关视频

Antigens Protected Functional Red Blood Cells By The Membrane Grafting Of Compact Hyperbranched Polyglycerols

Antigens Protected Functional Red Blood Cells By The Membrane Grafting Of Compact Hyperbranched Polyglycerols

Published on: January 2, 2013

Methods for Quantitative Detection of Antibody-induced Complement Activation on Red Blood Cells

Methods for Quantitative Detection of Antibody-induced Complement Activation on Red Blood Cells

Published on: January 29, 2014

相关概念视频

Blood Transfusion and Agglutination

Blood Transfusion and Agglutination

Blood transfusion is a therapeutic measure to restore the blood volume after extensive blood loss due to an accident or a medical procedure. Blood transfusion involves drawing a certain amount of blood from a suitable donor and infusing it into the recipient.
History
The history of blood transfusion dates back to the 17th century, when early attempts were made in animals. In 1818 James Blundell, a British doctor, performed the first successful human blood transfusion. Later in 1900, Karl...

Blood Transfusion

Blood Transfusion

Blood transfusion is a critical medical procedure that saves lives and treats various medical conditions. It involves transferring blood from a donor to a recipient. This process requires a thorough understanding of the ABO blood group system and its associated antigens and antibodies.
Blood Transfusion Overview
A blood transfusion is a medical procedure used to replace blood lost due to injury, surgery, or to treat conditions such as anemia or cancer. During a transfusion, donor blood is...

Rh Blood Group

Rh Blood Group

The Rhesus (Rh) antigen is crucial in determining blood groups and ensuring compatibility during blood transfusions.