单细胞空间转录学揭示了与免疫治疗临床反应相关的细胞状态和生态系统
Ziena Abdulrahman1,2, Roderick C Slieker1,3, Daniel McGuire4
1Department of Medical Oncology, Leiden University Medical Center, Leiden, ZH, Netherlands.
Journal for immunotherapy of cancer
|March 13, 2025
概括
了解瘤微环境 (TME) 是免疫治疗的关键. 这项研究表明,细胞类型和它们在TME内的空间布局都对部病变的治疗反应产生重大影响.
科学领域:
- 免疫学 免疫学 免疫学
- 在瘤学瘤学.
- 基因组学就是基因组学.
- 空间生物学 空间生物学
背景情况:
- 瘤微环境 (TME) 极大地影响免疫治疗的疗效.
- 了解TME内的细胞异质性和空间相互作用对于预测治疗结果至关重要.
- Vulvar高度状内皮病变 (vHSIL) 提供了一个模型来研究TME复杂性的免疫疗法反应.
研究的目的:
- 使用单细胞空间转录学系统地剖析TME的复杂性.
- 研究细胞异质性和空间相互作用对vHSIL患者免疫治疗反应的影响.
- 识别与完全反应,部分反应和对疫苗接种无反应相关的特异性TME特征.
主要方法:
- 在20个治疗前的vHSIL病变上进行了单细胞空间转录学.
- 病变按临床反应分层:完全响应者 (CR),部分响应者 (PR) 和非响应者 (NR).
- 一个由1000个基因组成的小组绘制了超过274,000个细胞的地图,识别了细胞群和细胞状态,并与公共数据集进行了验证.
主要成果:
- 完全响应者 (CR) 显示出免疫支持细胞与免疫抑制细胞的比例较高,富含效应性T细胞.
- 部分响应者 (PR) 增加了T助手2细胞和CCL18表达的巨细胞,与2型T细胞招募有关.
- 非响应者 (NR) 呈现出免疫抑制纤维细胞的优先透,缺乏有组织的免疫细胞相互作用.
结论:
- 细胞组成和TME内的空间组织是免疫治疗反应的关键决定因素.
- 不同的空间免疫生态系统与不同程度的免疫治疗临床反应相关.
- 这些发现凸显了TME在调节各种固体瘤免疫治疗疗效方面的复杂作用.
相关概念视频
Cells of the Adaptive Immune Response
8.3K
The T and B lymphocytes of the adaptive immune system develop from common lymphoid progenitor cells in the bone marrow. These progenitors give rise to precursors that eventually develop into both T and B lymphocytes. As these precursors mature, they gain the ability to detect and respond to foreign antigens in the body, a process known as immunocompetence. Additionally, these precursors acquire self-tolerance, a process that ensures they do not react to self-antigens. This intricate system...
8.3K
Tumor Immunotherapy
1.7K
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.
1.7K


