对抗原呈现细胞进行编排的抗原和辅助剂的编程输送,通过使用工程化学增强抗T细胞免疫力
Haifeng Pan1,2, Siyuan Yu1,2, Haoyun Zhuang1,2
1Laboratory of Vaccines for Infectious Diseases, Xiang An Biomedicine Laboratory, Department of Laboratory Medicine, School of Public Health, Xiamen University, Xiamen, China.
Cancer immunology research
|April 17, 2024
概括
研究人员开发了一种新型的疫苗策略,使用工程化学 (eTAT) 来改善抗原递送和免疫反应. 这种方法增强了CD8+T细胞激活和抗瘤作用,为癌症疫苗开发提供了有前途的进展.
科学领域:
- 免疫学 免疫学 免疫学
- 疫苗学 疫苗学 疫苗学
- 生物技术是生物技术.
背景情况:
- 传统的类癌症疫苗面临着影响抗原 (Ag) 和辅助剂配送的药理学限制.
- 有效的交叉呈现和代码传递对于强大的抗瘤CD8+T细胞反应至关重要.
研究的目的:
- 开发一种多功能战略,以解决基于的癌症疫苗中的药物动力学挑战.
- 通过改进抗原和辅助剂配送,通过使用工程化化学来提高疫苗的疗效.
主要方法:
- 设计了一种嵌合性 (eTAT) 来连接抗原 (Ags) 并作为分子内辅助剂.
- 评估了Ags的细胞质递送,Ag呈现细胞的激活和贩运以及Ag交叉呈现.
- 评估了与eTAT相关的Ags和cytosine-guanosine oligodeoxynucleotide (CpG) 辅助剂的共递.
- 在CD8+T细胞反应,瘤微环境调节和抗瘤作用方面测试了疫苗的疗效,包括与抗PD1疗法结合使用.
主要成果:
- 将Ags与eTAT联系起来,增强了细胞质递送,改善了Ag呈现细胞的激活,贩运和交叉呈现.
- 简单的混合eTAT相关的Ags和CpG显著改善了对Ag呈现细胞的代码传递.
- 这一策略增强了CpG的辅助作用,最大限度地提高了疫苗免疫性,并诱导了强大的,持久的CD8+T细胞反应.
- 接种疫苗显示出强大的抗瘤作用,并改变了瘤微环境,与抗PD1.1结合时有效性提高.
结论:
- 基于基因化学的工程策略促进了对抗原和辅助剂的编排代码交付.
- 这种方法克服了传统类疫苗的药理动力学限制.
- 它代表了一种有希望和简单的策略,以提高基于的癌症疫苗和抗瘤免疫力的疗效.
更多相关视频
09:15Experimental Melanoma Immunotherapy Model Using Tumor Vaccination with a Hematopoietic Cytokine
Published on: February 24, 2023
3.4K
11:58Initial Evaluation of Antibody-conjugates Modified with Viral-derived Peptides for Increasing Cellular Accumulation and Improving Tumor Targeting
Published on: March 8, 2018
7.6K
相关概念视频
Tumor Immunotherapy
522
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.
522
T Cell Activation and Clonal Selection
716
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...
716
