刺激响应mRNA疫苗通过ROS介导的先天免疫增强诱导强大的CD8+ T细胞反应
Linying Dong1,2, Xuqian Deng2,3, Yan Li2,3
1Medical School, Faculty of Medicine, Tianjin University, Tianjin 300072, China.
Journal of the American Chemical Society
|July 2, 2024
概括
新的刺激响应mRNA疫苗通过释放mRNA和增加反应性氧物种 (ROS) 来有效增强对癌症的T细胞反应,从而提高抗瘤免疫力.
科学领域:
- 免疫学和疫苗开发
- 纳米技术和生物材料
背景情况:
- 传递 RNA (mRNA) 疫苗对于预防传染和癌症免疫治疗具有重要意义.
- 利用天生的免疫力来刺激强大的适应性免疫保护仍然是一个挑战.
研究的目的:
- 合成具有刺激反应的双价离子化脂质 (srBiv iLPs),以提高mRNA疫苗的输送.
- 为了利用生理信号快速降解脂质,改善mRNA翻译和ROS介导的抗瘤免疫力.
主要方法:
- 合成的srBiv iLPs具有对各种生理刺激 (雌激酶,H2O2等) 反应的分子块. ) 的情况.
- 接种了对酶有反应的疫苗 (eBiv-mVac),并跟踪了其内部化,降解和免疫反应.
- 结合免疫检查点封锁的疫苗接种策略,以评估协同效应.
主要成果:
- 在富含乙酶的细胞中迅速降解,释放mRNA并产生活性氧物种 (ROS).
- 这一过程广泛激活了先天免疫力,显著增强了抗原特异性CD8+T细胞反应和瘤透.
- 与免疫检查点阻断的联合治疗显示出协同作用,导致强大的全身抗瘤疗效和延长存活时间.
结论:
- 响应刺激的mRNA输送平台可以有效地调节癌症控制的先天性和适应性免疫力.
- 开发的平台对强效的癌症疫苗和精确的基因/蛋白质传递应用具有前景.
- 这种方法代表了设计先进疫苗和治疗输送系统的范式转变.
更多相关视频
08:52Generation of Multivirus-specific T Cells to Prevent/treat Viral Infections after Allogeneic Hematopoietic Stem Cell Transplant
Published on: May 27, 2011
17.2K
11:07Whole-animal Imaging and Flow Cytometric Techniques for Analysis of Antigen-specific CD8+ T Cell Responses after Nanoparticle Vaccination
Published on: April 29, 2015
13.2K
相关概念视频
01:27Cytotoxic T Cells-mediated Immune Response
888
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...
888
01:29Immune Response Against Viral Pathogens
771
The immune system's response to viral infections is a complex and coordinated process involving natural killer (NK) cells, T cell-mediated responses, and antibody-mediated responses.
NK Cells
NK cells are a crucial part of our innate immune system, acting as the first line of defense against viral infections. These cells can recognize and kill infected cells without prior exposure to the virus, effectively slowing down the spread of infection. Additionally, NK cells produce proinflammatory...
NK Cells
NK cells are a crucial part of our innate immune system, acting as the first line of defense against viral infections. These cells can recognize and kill infected cells without prior exposure to the virus, effectively slowing down the spread of infection. Additionally, NK cells produce proinflammatory...
771
01:23Cells of the Adaptive Immune Response
979
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...
979
01:51Vaccinations
44.4K
Overview
44.4K