HLA-DRB1血清型与HLA-DQB1等位基因不匹配和移植中的急性拒绝之间的关联
Renato de Marco1,2, Isau H Noronha1, Luiza Zainotti Miguel Fahur Bottino1
1Instituto de Imunogenética (IGEN), Associação Fundo de Incentivo à Pesquisa (AFIP), São Paulo, São Paulo, Brazil.
HLA
|May 22, 2025
概括
HLA-DRB1血清型不匹配对于预测移植后急性排斥具有临床意义. 这项研究发现血清型不匹配,以及移植前的HLA-ABDR DSA和CMV LIL不匹配,显著预测第一年内急性排斥.
科学领域:
- 免疫遗传学 免疫遗传学
- 移植免疫学 移植免疫学
- 腎臟病學 (nephrology) 是一種醫學.
背景情况:
- 急性排斥 (AR) 仍然是已故捐赠者移植的一个重大挑战.
- 了解导致AR的免疫遗传因素对于改善患者的治疗结果至关重要.
- 各种人类白细胞抗原 (HLA) 不匹配 (MM) 模式用于评估免疫风险,但它们的相对临床相关性需要进一步调查.
研究的目的:
- 调查HLA血清型不匹配 (MM) 和急性排斥 (AR) 在移植后第一年之间的关联.
- 为了比较HLA血清型MM的预测值与其他HLAMM模式和细胞巨乳病毒LIL (CMV LIL) MM的预测值.
- 在已故的捐赠接受者中预测AR的关键免疫遗传因素.
主要方法:
- 一个单一中心的病例控制研究涉及99对来自同一已故捐赠者的接受者,其中一个接受者经历了AR,另一个没有.
- 使用下一代测序 (NGS) 对11个位点进行高分辨率的HLA类型化.
- 对各种HLAMM类别 (等位基组,等位基,血清型,氨基酸,EMMA,eplet,PIRCHE-II) 和CMV LIL MM.的分析.
- 对于匹配对分析的单变量和多变量考克斯比例危险回归.
主要成果:
- 患有AR的接受者在移植前显示出更高频率的HLA-ABDR捐赠者特异性抗体 (DSA) 和CMV LIL MM.
- 多变量分析确定了移植前的HLA-ABDR DSA,CMV LIL MM,HLA-DRB1血清型MM和HLA-DQB1等位基因MM作为AR的显著预测因素.
- 最好的预测模型包括移植前的HLA-ABDR DSA,CMV LIL MM,HLA-DRB1血清型MM和HLA-DQB1等位基因MM,证明了血清型的临床相关性.
结论:
- HLA-DRB1血清型不匹配与移植后第一年急性排斥显著相关.
- 血清型不匹配,以及移植前的HLA-ABDR DSA和CMV LIL MM,提供了对AR的可靠预测.
- 这些发现强调了在移植风险评估和管理中考虑HLA血清型的临床重要性.
相关概念视频
Tissue Transplantation
321
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...
321
Blood Transfusion and Agglutination
10.7K
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...
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...
10.7K
Cell-mediated Immune Responses
66.6K
Overview
66.6K
Bone Marrow Sampling and Transplants
269
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...
269
Blood Typing
1.1K
Understanding an individual's blood group is a critical component of transfusion medicine. It ensures compatibility in blood transfusions, organ transplants, and even during pregnancy. Determining these blood groups involves the ABO and Rh blood typing systems, utilizing specific antigens and corresponding anti-sera to identify an individual's blood type.
Antigens are protein molecules that reside on the surface of red blood cells (RBCs). The ABO and Rh blood typing systems target...
Antigens are protein molecules that reside on the surface of red blood cells (RBCs). The ABO and Rh blood typing systems target...
1.1K


