通过β2-上腺素受体介导的T细胞功能抑制及其对CAR-T细胞治疗的影响
Muhammad Asad Farooq1, Iqra Ajmal1, Xinhui Hui1
1Shanghai Key Laboratory of Regulatory Biology, School of Life Sciences, East China Normal University, Shanghai 200241, China.
International journal of molecular sciences
|August 26, 2023
概括
瘤微环境通过上腺素 (NA) 抑制免疫反应,激活T细胞上的β2-上腺素受体 (β2-ARs). 阻断β2-AR增强了T细胞活性,这表明它是CAR-T细胞疗法的治疗点.
科学领域:
- 免疫学 免疫学 免疫学
- 癌症生物学 癌症生物学
- 神经内分泌学神经内分泌学
背景情况:
- 瘤微环境是复杂的,通常具有免疫抑制作用.
- 上腺系统,特别是诺-上腺素 (NA),在调节免疫反应方面发挥作用.
- 诺-上腺素由神经和瘤组织释放,与癌症和免疫细胞上的受体相互作用.
研究的目的:
- 审查瘤微环境中的T淋巴细胞中上腺激素压力介导的β2-上腺体受体 (β2-AR) 激活的当前知识.
- 要突出β2-AR在T细胞上的免疫抑制作用.
- 确定β2-AR作为CAR-T细胞疗法的潜在目标.
主要方法:
- 审查关于上腺体信号传递,瘤免疫学和T细胞功能的现有科学文献.
- 分析了研究nor-adrenaline和β2-AR调节对免疫细胞的影响的研究.
- 综合了有关T细胞激活,增殖,细胞因子释放和对β2-AR活性反应的代谢重编程的数据.
主要成果:
- β2-上腺素受体 (β2-ARs) 存在于瘤微环境中的免疫细胞上.
- 诺-上腺素对β2-ARs的激活通过激活调节性T细胞和抑制效应性T细胞来促进免疫抑制.
- 阻断β2-AR增强T细胞激活,增殖和细胞因子的产生,并影响T细胞的代谢重编程.
结论:
- 在瘤环境中的T细胞中β2-AR的免疫抑制功能使其成为可向的检查点.
- 向β2-AR是一个有希望的策略,可以提高CAR-T细胞治疗的疗效.
- 对上腺素介导免疫抑制的进一步研究可以为新的癌症免疫疗法提供信息.
相关概念视频
Receptor Downregulation in MVBs
2.1K
Multivesicular bodies (MVBs) are mature endosomes that sort ubiquitinated proteins and then fuse with lysosomes to degrade the sorted proteins. Epidermal growth factor (EGF) and its receptor (EGFR) form a complex that can be internalized through endocytosis, sorted into an MVB, and later degraded.
The EGFR can initiate signaling pathways that lead to cell proliferation, migration, and differentiation. Overexpression of EGFR stimulates cells to proliferate. Excessive EGFR...
The EGFR can initiate signaling pathways that lead to cell proliferation, migration, and differentiation. Overexpression of EGFR stimulates cells to proliferate. Excessive EGFR...
2.1K
Adrenergic Antagonists: Pharmacological Actions of β-Receptor Blockers
890
β-receptor blockers significantly impact the cardiovascular system by counteracting catecholamine-induced sympathetic responses. These medications decrease heart rate, contractility, and cardiac output, potentially leading to cardiac depression, life-threatening bradycardia, and death. Therapeutically, β-blockers function as mild antihypertensives and are utilized in treating angina pectoris and cardiac arrhythmias. However, nonselective β-blockers inhibit β2-receptors in...
890
Tumor Immunotherapy
556
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.
556
T Cell Types and Functions
1.1K
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...
1.1K
T Cell Activation and Clonal Selection
806
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...
806
Cytotoxic T Cells-mediated Immune Response
965
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...
965


![Dynamic Imaging of Chimeric Antigen Receptor T Cells with [18F]Tetrafluoroborate Positron Emission Tomography/Computed Tomography](/_next/image?url=https%3A%2F%2Fcloudfront.jove.com%2FCDNSource%2Fteasers%2F62334.jpg&w=3840&q=50)