三级淋巴体结构形成的机制:炎症和抗原性之间的合作
Shrijan Khanal1, Andreas Wieland2, Andrew J Gunderson1
1Division of Surgical Oncology, Comprehensive Cancer Center, The Ohio State University, Columbus, OH, United States.
Frontiers in immunology
|October 9, 2023
概括
瘤中的三级淋巴体结构 (TLS) 增强了抗瘤免疫力,并预测了免疫治疗反应. 了解TLS形成对于开发新的癌症疗法至关重要,但目前的小鼠模型限制了研究.
科学领域:
- 免疫学 免疫学 免疫学
- 在瘤学瘤学.
- 癌症研究 癌症研究
背景情况:
- 有效的抗瘤免疫需要淋巴细胞透到恶性组织中.
- 瘤中的三级淋巴体结构 (TLS),以聚合的淋巴细胞和抗原呈现细胞为特征,与更好的患者存活率和免疫治疗反应有关.
- 推动TLS形成的机制尚不清楚,这阻碍了治疗的发展.
研究的目的:
- 审查当前对三级淋巴细胞结构 (TLS) 在固体瘤中的新生代的理解.
- 为了确定TLS生物学和形成的知识差距.
- 突出TLS在抗瘤免疫和免疫治疗中的重要性.
主要方法:
- 本综述综合了关于TLS形成的现有研究.
- 它分析了各种癌症模型和临床研究的数据.
- 该审查侧重于TLS发展背后的细胞和分子机制.
主要成果:
- 瘤中先前存在的TLS与更强的适应性免疫反应,改善免疫治疗结果和增强患者存活率相关.
- TLS组织反映了淋巴组织结构,包括淋巴细胞,抗原呈现细胞和高内皮静脉.
- 研究TLS生物学的一个重大局限是,在常见的临床前癌症模型中,缺乏自发的TLS形成.
结论:
- TLS是抗瘤免疫的关键组成部分,也是免疫治疗有效性的生物标志物.
- 对TLS新生代的进一步研究对于开发在"冷"瘤中治疗性诱导TLS的策略至关重要.
- 克服当前临床前模型的局限性是推动我们对TLS的理解和治疗操纵的关键.
相关概念视频
Cells of the Adaptive Immune Response
1.0K
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...
1.0K
T Cell Activation and Clonal Selection
778
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...
778
B Cell Activation and Differentiation
1.8K
The adaptive immune response, a sophisticated defense mechanism, relies on the activation and differentiation of B lymphocytes, or B cells. These processes enable our bodies to mount a tailored response against specific pathogens such as bacteria, free virus particles, toxins, and parasites.
When naive B cells encounter a specific antigen that can bind to the B cell receptor (BCR) on their surface, they undergo sensitization to respond to the antigen's presence. Sensitization begins with...
When naive B cells encounter a specific antigen that can bind to the B cell receptor (BCR) on their surface, they undergo sensitization to respond to the antigen's presence. Sensitization begins with...
1.8K
Lymphoid Cells and Tissues
1.2K
Lymphoid cells and tissues are integral to the immune system, which is crucial in maintaining our body's defense against harmful pathogens. They form the building blocks of lymphoid organs, which include the spleen, thymus, and lymph nodes.
Lymphoid cells consist of various types of immune system cells. These include B and T lymphocytes, which are responsible for producing antibodies and killing infected cells, respectively. Dendritic cells act as messengers between the innate and adaptive...
Lymphoid cells consist of various types of immune system cells. These include B and T lymphocytes, which are responsible for producing antibodies and killing infected cells, respectively. Dendritic cells act as messengers between the innate and adaptive...
1.2K
Antigens Involved in Adaptive Immunity
516
An antigen is any substance the immune system identifies as foreign and potentially harmful to the body, prompting an immune response. Antigens have two functional properties: immunogenicity and reactivity. Immunogenicity is the ability of an antigen to stimulate a specific immune response. At the same time, reactivity describes the antigen's ability to react with the cells and antibodies produced in response to it.
Complete Antigens
Complete antigens possess both immunogenicity and...
Complete Antigens
Complete antigens possess both immunogenicity and...
516
Diversity of Antigen Receptors
611
Antigen receptors are essential components of the immune system crucial in defending the body against foreign invaders. These receptors are present on the surface of B and T cells, enabling them to recognize antigens and mount an appropriate immune response.
Before encountering any antigen, lymphocytes express these receptors. On B cells, the antigen receptor is a membrane-bound antibody molecule called BCR; on T cells, it is a T cell receptor or TCR. B and T cell receptors are composed of two...
Before encountering any antigen, lymphocytes express these receptors. On B cells, the antigen receptor is a membrane-bound antibody molecule called BCR; on T cells, it is a T cell receptor or TCR. B and T cell receptors are composed of two...
611


