在癌症免疫疗法中,NaCl增强了CD8+ T细胞效应器功能
Caterina Scirgolea1, Rosa Sottile1, Marco De Luca1
1IRCCS Humanitas Research Hospital, Milan, Italy.
Nature immunology
|August 28, 2024
概括
化 (NaCl) 可以逆转T细胞功能障碍,增强抗瘤免疫力,促进癌症回归. 这一发现为改善癌症免疫治疗结果提供了新的潜在策略.
科学领域:
- 免疫学 免疫学 免疫学
- 在瘤学瘤学.
- 代谢调节 代谢调节 代谢调节
背景情况:
- CD8+ T细胞对于抗瘤免疫是至关重要的,但在瘤微环境中经常变得功能障碍.
- 瘤诱导的T细胞功能障碍限制了当前癌症免疫疗法的有效性.
研究的目的:
- 调查化 (NaCl) 在抵消CD8+T细胞功能障碍方面的作用.
- 探索NaCl作为癌症免疫疗法的辅助剂的潜力.
主要方法:
- 在体外培养CD8+T细胞与NaCl补充.
- 通过将修改后的T细胞移植到人性化的小鼠模型中.
- 在有实验瘤的小鼠中进行高盐饮食的管理.
- 对T细胞转录,表观遗传和代谢 (包括谷氨胺消耗) 资料的分析.
- 人类瘤透的CD8+T细胞与NaCl处理的细胞的比较.
主要成果:
- 纳补充剂增强了CD8+T细胞效应因子分化,IFN-γ产生和细胞毒性,同时保持了类似干细胞的可塑性.
- 采用NaCl处理的T细胞的移植导致小鼠在抗瘤免疫力上获得了优越的免疫力.
- 高盐饮食通过增强的CD8+T细胞效应器功能减少了小鼠的瘤生长.
- NaCl诱导的重编程与增加的谷氨胺消耗有关.
- 人类瘤透的CD8+T细胞与免疫疗法反应相关,类似于用NaCl处理的细胞.
结论:
- 化代谢是CD8+T细胞效应因子功能和抗瘤免疫力的关键调节者.
- NaCl可以重编程T细胞以克服瘤诱导的功能障碍,这表明在癌症免疫治疗中具有潜在的治疗应用.
相关概念视频
Tumor Immunotherapy
493
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.
493
T Cell Activation and Clonal Selection
691
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...
691
Cytotoxic T Cells-mediated Immune Response
861
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...
861
T Cell Types and Functions
963
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...
963
Cells of the Innate Immune Response
1.6K
The innate immune response is an immediate and non-specific response against pathogens, acting swiftly to prevent the spread of infections. The primary cells involved in this response are phagocytes and natural killer (NK) cells.
Phagocytes
Phagocytes police the peripheral tissues by removing cellular debris and responding to the invasion of foreign substances or pathogens. Many phagocytes attack and remove microorganisms even before lymphocytes detect them. The human body has two general...
Phagocytes
Phagocytes police the peripheral tissues by removing cellular debris and responding to the invasion of foreign substances or pathogens. Many phagocytes attack and remove microorganisms even before lymphocytes detect them. The human body has two general...
1.6K
Cell-mediated Immune Responses
67.9K
Overview
67.9K


