透组织的全活性T细胞需要Id3来转移PD-1介导的免疫抑制在GVHD期间
Ying Wang1, Shan He2, Gennaro Calendo3
1Center for Discovery and Innovation, Hackensack University Medical Center, Nutley, NJ.
Blood
|October 23, 2023
概括
Id3对于T细胞在移植与宿主疾病 (GVHD) 目标组织中的持久性至关重要. 它的缺失会损害T细胞功能并减少GVHD,为免疫治疗提供了一个新的点.
科学领域:
- 免疫学 免疫学 免疫学
- 分子生物学分子生物学
- 癌症免疫疗法癌症免疫疗法
背景情况:
- 目标组织中的全反应性供体T细胞驱动了移植与宿主疾病 (GVHD).
- 在GVHD中控制组织透T细胞的转录调节剂尚不清楚.
- 识别这些调节剂是开发新GVHD疗法的关键.
研究的目的:
- 研究Id3在T细胞持久性和GVHD点组织中的功能中的作用.
- 探索Id3对T细胞信号通路的影响及其对PD-1表达的调节.
- 评估针对GVHD的Id3和基于T细胞的免疫疗法的治疗潜力.
主要方法:
- 利用GVHD的小鼠模型研究肝脏和肠道T细胞反应.
- 采用单细胞RNA测序和全基因组RNA测序来分析基因表达和信号.
- 研究了Id3剥离和PD-1阻断对T细胞功能和GVHD严重性的影响.
- 在人类CAR T细胞中评估了CRISPR/Cas9介导的ID3淘汰对抗瘤活性.
主要成果:
- Id3缺乏导致异常的PD-1表达,T细胞透率降低,并在GVHD点组织中维护T细胞受损.
- Id3的损失降低了CD28和PI3K/AKT信号传输,表明PD-1/PD-L1通路效应增强.
- Id3 切除保护了 CD8+ T 细胞免受 PD-1 介导的抑制,并保留了移植对瘤效应.
- 在CAR T细胞中,CRISPR/Cas9对ID3的淘汰维持了抗瘤活性.
结论:
- Id3对于维持T细胞反应和预防GVHD至关重要,因为它通过抑制参与T细胞激活和功能障碍的关键转录因子来预防GVHD.
- 针对Id3是一个有希望的策略来缓解GVHD.
- ID3的基因编辑有可能增强基于T细胞的免疫疗法,包括CAR T细胞疗法.
更多相关视频
11:55Induction of Alloantigen-specific Anergy in Human Peripheral Blood Mononuclear Cells by Alloantigen Stimulation with Co-stimulatory Signal Blockade
Published on: March 14, 2011
14.6K
18:48In Vitro and In Vivo Assessment of T, B and Myeloid Cells Suppressive Activity and Humoral Responses from Transplant Recipients
Published on: August 12, 2017
14.4K
相关概念视频
Cell-mediated Immune Responses
68.6K
Overview
68.6K
Tumor Immunotherapy
538
Immunotherapy is a treatment that boosts or manipulates the immune system to fight diseases, including cancer. For instance, by stimulating an immune response through vaccinations against viruses that cause cancers, like hepatitis B virus and human papillomavirus, these diseases can be prevented. Nonetheless, some cancer cells can avoid the immune system due to their rapid mutation and division. The immune response to many cancers involves three phases: elimination, equilibrium, and escape.
538
Tissue Transplantation
379
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...
379
