相关实验视频
Updated: Jul 2, 2025

10:27
Murine Heterotopic Heart Transplant Technique
Published on: July 8, 2014
17.0K
在心脏移植中,来自供体的无细胞DNA与基于组织的与排斥相关的转录之间的关系
Dae Hyun Lee1, Ahsan Usmani2, Robby Wu1
1Heart Transplant Program, Transplant Institute, Tampa General Hospital, Tampa, Florida; Division of Cardiovascular Medicine, Department of Internal Medicine, University of South Florida Morsani College of Medicine, Tampa, Florida; Heart & Vascular Institute, Tampa General Hospital, Tampa, Florida.
概括
捐赠者衍生的无细胞DNA (dd-cfDNA) 测试显示与分子显微镜诊断系统 (MMDx) 实质上一致,用于检测心脏杂种移植排斥. 这种血液检查可能提供一种不那么侵入性的方法来监测心脏移植接受者.
科学领域:
- 心血管医学 心血管医学
- 移植免疫学 移植免疫学
- 分子诊断学 分子诊断
背景情况:
- 传统的内肌心活检 (EMB) 是心脏异位移植排斥的黄金标准,但是主观的.
- 捐赠者衍生的无细胞DNA (dd-cfDNA) 是用于对全移植损伤的监测的一种血液测试.
- 分子显微镜诊断系统 (MMDx) 使用移植内成绩单来分类排斥.
研究的目的:
- 评估心脏移植接受者的dd-cfDNA和MMDx之间的诊断一致性.
- 探索dd-cfDNA水平和MMDx识别的排斥相关转录 (RAT) 之间的关系.
主要方法:
- 通过传统显微镜和MMDx分析的156个内心肌瘤活检 (EMB) 的回顾性观察性研究.
- 在EMB前9天内采集的对外周围血液dd-cfDNA样本.
- 基因病理学,MMDx和dd-cfDNA之间的诊断一致性比较 (值为0.20%);评估dd-cfDNA与个人RAT表达的相关性.
主要成果:
- MMDx将排斥分类为没有排斥 (62.8%),抗体介导排斥 (ABMR) (26.9%),T细胞介导排斥 (TCMR) (5.8%) 和混合 (4.5%).
- 观察到MMDx和dd-cfDNA之间在诊断任何类型的排斥方面存在实质性的一致性 (76.3%).
- 较高的dd-cfDNA水平与异常的MMDx转录集群和单个RAT显著相关,包括ROBO4.
结论:
- 在DD-cfDNA和MMDx之间存在显著的诊断一致性,用于心脏全移植排斥.
- 这些发现表明,在抗体介导排斥中,dd-cfDNA释放和ROBO4表达的共同途径.
- dd-cfDNA和MMDx提供了对移植损伤和排斥的客观分子见解.
更多相关视频
相关概念视频
Tissue Transplantation
366
Tissue transplantation is a significant medical procedure involving the transfer of cells, tissues, or organs from a donor to a recipient, with the primary aim of restoring lost functions. This procedure is crucial in treating a broad spectrum of diseases, including kidney diseases, liver failure, heart disease, and certain types of cancers.
The Biology of Tissue Transplantation
The biology of tissue transplantation hinges on the Major Histocompatibility Complex (MHC) molecules. These molecules...
The Biology of Tissue Transplantation
The biology of tissue transplantation hinges on the Major Histocompatibility Complex (MHC) molecules. These molecules...
366
Bone Marrow Sampling and Transplants
330
Bone marrow transplant is a potential cure for several diseases, including cancer and specific genetic disorders. Notably, this procedure is applicable for patients suffering from aplastic anemia, certain types of leukemia, severe combined immunodeficiency disease (SCID), Hodgkin's disease, non-Hodgkin's lymphoma, multiple myeloma, thalassemia, sickle-cell disease, and certain cancers.
The transplant begins with high doses of chemotherapy and radiation treatment, which aim to destroy...
The transplant begins with high doses of chemotherapy and radiation treatment, which aim to destroy...
330
Cell-mediated Immune Responses
68.3K
Overview
68.3K

