mRNA-1273 COVID-19 疫苗在固体器官移植接收者中诱导 CD4+ T 细胞反应
Bethany Girard1, Amparo L Figueroa1, Stephen C De Rosa2
1Moderna, Inc., Cambridge, MA, United States.
Frontiers in immunology
|April 18, 2025
概括
一个三剂量mRNA-1273疫苗系列诱导了固体器官移植接受者 (SOTRs) 的T细胞反应. 额外的剂量改善了这些细胞介导免疫反应,提供了对严重的COVID-19的潜在保护.
科学领域:
- 免疫学 免疫学 免疫学
- 疫苗学 疫苗学 疫苗学
- 移植医学 移植医学 移植医学
背景情况:
- 细胞介导免疫对于对抗严重COVID-19的持久保护至关重要,特别是在固体器官移植接受者 (SOTRs) 中.
- 这项研究探讨了SOTRs中对mRNA-1273疫苗的细胞介导免疫反应.
研究的目的:
- 评估三剂量mRNA-1273初级系列和额外的增强剂量对SOTRs细胞介导免疫力的影响.
- 为了比较和肝SOTR之间的T细胞反应,以及SOTR和免疫能力强的个体之间的反应.
主要方法:
- 一个开放的标签,3b期试验,涉及和肝SOTRs,以及免疫能力强的参与者.
- 使用细胞内细胞因子染色和多功能性分析测量SARS-CoV-2尖峰 (S) 蛋白特异性T细胞反应.
- 给出mRNA-1273的三剂初级系列,所有参与者可选择额外的剂量.
主要成果:
- 在mRNA-1273主系列中,SOTR和免疫能力较强的个体都诱导了Th-1-偏差的CD4+T细胞反应,尽管SOTR的响应率和大小较低.
- 脏SOTRs,通常在多种免疫抑制剂上,与肝脏SOTRs相比,显示出较低的细胞介导免疫反应.
- 额外的mRNA-1273剂量改善了SOTRs中的S蛋白特异性T细胞反应.
结论:
- 一个三剂量mRNA-1273初级疫苗接种系列在SOTR中引起了Th-1-偏差的CD4+T细胞反应.
- 额外的mRNA-1273剂量可以增强SOTRs中的T细胞反应.
- 细胞介导免疫评估提供了有关免疫受损人群疫苗疗效的见解.
相关概念视频
Cell-mediated Immune Responses
65.3K
Overview
65.3K
Tissue Transplantation
271
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...
271
Bone Marrow Sampling and Transplants
260
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...
260


