活性血小板刺激效应体CD8+T细胞,以增强HNSCC免疫疗法的疗效
Zhennan Yuan1, Lunhua Guo1, Yuheng Pang1
1Department of Oncology Surgery, Harbin Medical University Cancer Hospital, Haping RD NO.150, Harbin, 150001, Heilongjiang, People's Republic of China.
Discover oncology
|May 14, 2025
概括
周围血液单核细胞 (PBMC) 中的活性血小板和CD8+ T细胞可以预测头癌患者对PD-1抑制剂的反应. 这些细胞的较高水平表明对免疫治疗的免疫反应更强.
科学领域:
- 免疫学 免疫学 免疫学
- 在瘤学瘤学.
- 血液学 血液学 血液学
背景情况:
- 编程死亡受体-1 (PD-1) 抑制剂在癌症免疫治疗中至关重要.
- 血小板,传统上被称为血静,越来越多地被认为是它们在癌症免疫力中的作用.
- 了解血小板-免疫细胞相互作用是新型癌症治疗的关键.
研究的目的:
- 研究治疗前免疫细胞状态和血小板激活与PD-1抑制剂疗效之间的关系.
- 确定潜在的预测生物标志物,用于头癌免疫疗法反应.
主要方法:
- 对周围血液单核细胞 (PBMC) 和血小板激活标记物的分析.
- 响应和不响应癌症患者之间的免疫细胞概况和血小板状况的比较.
主要成果:
- 治疗反应较好的患者在治疗前表现出更高的成熟和激活的CD8+ T细胞水平.
- 在响应的患者中观察到血小板激活的增加,可能会调节免疫细胞.
- 响应的患者在免疫治疗后具有更高的激活因子CD8+T细胞丰度.
结论:
- 治疗前的CD8+T细胞状态和血小板激活水平可以预测PD-1抑制剂在头癌中的有效性.
- 激活的血小板可能会促进CD8+效应器记忆T细胞的成熟和功能.
- 这些发现提供了对免疫细胞-血小板相互作用和潜在的免疫疗法优化策略的见解.
相关概念视频
Tumor Immunotherapy
441
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.
441
Cytotoxic T Cells-mediated Immune Response
812
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...
812
T Cell Activation and Clonal Selection
609
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...
609


