将基于机制的T细胞表型集成到瘤免疫细胞相互作用模型中
Neel Tangella1, Colin G Cess2, Geena V Ildefonso2
1Department of Quantitative and Computational Biology, University of Southern California, Los Angeles, California 90089, USA.
APL bioengineering
|August 23, 2024
概括
这项研究整合了计算模型,以了解CD8+ T细胞特性如何影响瘤进化和免疫治疗反应. 这些发现为针对性癌症治疗策略提供了见解.
科学领域:
- 计算生物学 计算生物学
- 癌症免疫学 癌症免疫学
- 系统生物学 系统生物学
背景情况:
- 瘤微环境细胞相互作用影响癌症生长和免疫治疗反应.
- 实验方法很难为这些复杂的细胞相互作用提供机械洞察力.
- 计算建模,特别是基于代理物的建模 (ABM),提供了一种定量方法来研究瘤进化.
研究的目的:
- 开发和应用一个集成的布尔-ABM框架来研究CD8+ T细胞特性对瘤组成,空间组织和免疫检查点阻塞有效性的影响.
- 在T细胞状态和细胞间相互作用的背景下,提供对瘤演变的机制性理解.
- 通过计算模拟探索针对性的免疫治疗策略.
主要方法:
- 开发一种基于新型药剂的模型 (ABM),以模拟瘤微环境中的细胞间相互作用.
- 整合一个预先存在的布尔模型,预测CD8+T细胞状态过渡 (从先天性到终端分化).
- 应用结合布尔-ABM框架来分析T细胞特性对瘤动态和免疫治疗反应的影响.
主要成果:
- 综合模型成功地预测了细胞间相互作用对瘤演变的影响.
- 证明了特定的CD8+T细胞特性如何影响瘤组成和空间组织.
- 量化了T细胞特征对免疫检查点阻塞疗法的疗效的影响.
结论:
- 这项研究提出了由细胞-细胞相互作用和T细胞状态驱动的瘤进化机制的理解.
- 开发的布尔-ABM框架是研究向免疫治疗策略的宝贵工具.
- 计算建模为优化癌症免疫治疗方法提供了关键的见解.
相关概念视频
01:22T Cell Activation and Clonal Selection
692
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...
692
01:27Tumor 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
02:17The Tumor Microenvironment
6.6K
Every normal cell or tissue is embedded in a complex local environment called stroma, consisting of different cell types, a basal membrane, and blood vessels. As normal cells mutate and develop into cancer cells, their local environment also changes to allow cancer progression. The tumor microenvironment (TME) consists of a complex cellular matrix of stromal cells and the developing tumor. The cross-talk between cancer cells and surrounding stromal cells is critical to disrupt normal tissue...
6.6K
01:27Cytotoxic 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
02:43Mouse Models of Cancer Study
5.5K
Mice have long served as models for studying human biology and pathology because of their phylogenetic and physiological similarity with humans. They are also easy to maintain and breed in the laboratory, and hence, many inbred strains are now available for research. Studies on mice have contributed immeasurably to our understanding of cancer biology.
The development of transgenic, knockout, and knock-in mice has led to an exponential increase in their use as model organisms in research,...
The development of transgenic, knockout, and knock-in mice has led to an exponential increase in their use as model organisms in research,...
5.5K