相关实验视频
Updated: Sep 11, 2025

10:29
Generation of Human Chimeric Antigen Receptor Regulatory T Cells
Published on: January 3, 2025
1.6K
失去YTHDF2可以增强Th9编程和CAR-Th9细胞抗瘤功效
Sai Xiao1,2, Songqi Duan1,2, Yaqun Hong1,2
1Department of Hematology and Hematopoietic Cell Transplantation, City of Hope National Medical Center, Los Angeles, CA, USA.
Nature immunology
|August 18, 2025
概括
YTHDF2负面调节T助手9 (Th9) 细胞的分化. 移除YTHDF2可以增强Th9细胞功能,并增强抗瘤免疫力,为癌症免疫治疗提供了一种新的策略.
科学领域:
- 免疫学 免疫学 免疫学
- 分子生物学分子生物学
- 癌症研究 癌症研究
背景情况:
- CD4+ T 细胞分化成免疫和癌症免疫疗法至关重要的子集.
- 在T细胞分化中RNA N6-甲基氨酸 (m6A) 修饰的作用仍然在很大程度上未知.
研究的目的:
- 研究m6A读者蛋白YTHDF2在T助手9 (Th9) 细胞分化中的功能.
- 探索向YTHDF2以增强癌症免疫治疗的潜力.
主要方法:
- 研究了YTHDF2在小鼠和人类原始CD4+T细胞中的作用.
- 分析了Ythdf2剥离对Th9分化和细胞因子 (IL-9,IL-21) 生产的影响.
- 在体内评估YTHDF2耗尽对CAR-Th9细胞功能和抗瘤功效的影响.
主要成果:
- YTHDF2缺陷通过稳定 Gata3 和 Smad3 mRNA 来促进 Th9 的分化.
- 缺少Ythdf2的Th9细胞表现出增强的IL-9和IL-21的产生.
- 在Th9和CAR-Th9细胞中减少YTHDF2可以改善抗瘤活性和免疫细胞细胞毒性.
结论:
- YTHDF2作为Th9细胞分化的负调节剂.
- 向YTHDF2代表了增强Th9和CAR-Th9基于细胞的癌症免疫疗法的有希望的策略.
相关概念视频
T Cell Types and Functions
1.4K
When T cells with CD4 markers are activated, they give rise to two types of effector cells: helper T cells and regulatory T cells. Meanwhile, T cells with CD8 markers differentiate into effector cytotoxic T cells. The differentiation of CD4 T cells into helper T cell subsets, such as Th1, Th2, and Th17 cells, is dependent on the antigen type, antigen-presenting cell, and regulatory cytokines.
Th1 cells stimulate dendritic cells to express necessary co-stimulatory molecules on their surfaces for...
Th1 cells stimulate dendritic cells to express necessary co-stimulatory molecules on their surfaces for...
1.4K
Loss of Tumor Suppressor Gene Functions
5.1K
Tumor suppressor genes are normal genes that can slow down cell division, repair DNA mistakes, or program the cells for apoptosis in case of irreparable damage. Hence, they play an essential role in preventing the proliferation of damaged cells.
When the tumor suppressor genes develop mutations or are lost, cells start growing out of control, leading to cancer. However, a single functional copy of the tumor suppressor gene is enough for the cells to maintain their normal functions and cell...
When the tumor suppressor genes develop mutations or are lost, cells start growing out of control, leading to cancer. However, a single functional copy of the tumor suppressor gene is enough for the cells to maintain their normal functions and cell...
5.1K
T Cell Activation and Clonal Selection
4.5K
T cells are integral to our adaptive immune system, recognizing and effectively responding to foreign antigens. T cell activation and clonal selection are pivotal in orchestrating this immune response. This article elucidates these mechanisms, detailing the roles of cluster of differentiation (CD) markers, major histocompatibility complex (MHC) molecules, costimulatory signals, and the process of clonal selection.
Naive T cells that have not yet encountered an antigen express two primary CD...
Naive T cells that have not yet encountered an antigen express two primary CD...
4.5K
Cytotoxic T Cells-mediated Immune Response
1.9K
Cytotoxic T cells are a vital component of the immune system. They have the remarkable ability to identify and target antigens on infected or abnormal cells. These antigens often originate from intracellular pathogens such as viruses or abnormal proteins cancer cells produce.
Immunological surveillance is the ability of immune cells to monitor and eliminate infected cells with intracellular pathogens, neoplastically transformed cells, and cells with non-self antigens. Cytotoxic T cells and NK...
Immunological surveillance is the ability of immune cells to monitor and eliminate infected cells with intracellular pathogens, neoplastically transformed cells, and cells with non-self antigens. Cytotoxic T cells and NK...
1.9K

