凝激活Mincle受体用于瘤细胞处理:癌症免疫疗法的新方法
Jiake Lin1, Yuemin Zhou2, Chen Li2
1Department of Chemistry, Zhejiang University, Hangzhou, Zhejiang, 310058, China; Liangzhu Laboratory, Hangzhou, Zhejiang, 311113, China.
Biomaterials
|July 13, 2024
概括
一个新的水凝支架 (ChitoCa) 创造了一个体内的免疫工厂,将瘤细胞转化为抗瘤疫苗. 这种方法增强了抗原呈现,并启动了CD8+ T细胞的反应,从而有效地进行瘤回归.
科学领域:
- 生物材料科学 生物材料科学
- 免疫学 免疫学 免疫学
- 癌症治疗 癌症治疗
背景情况:
- 目前的瘤免疫疗法在维持T细胞免疫力方面面临挑战,原因是瘤抗原处理和交叉呈现不佳.
- 开发有效的在位瘤抗原呈现策略对于提高免疫疗法疗效至关重要.
研究的目的:
- 开发一种基于水凝的多细胞免疫工厂,用于体内瘤细胞转化为抗瘤疫苗.
- 研究基托卡介导免疫细胞激活和瘤抗原交叉呈现的机制.
主要方法:
- 制造含的酸盐水凝复合物 (ChitoCa) 作为支架.
- 在ChitoCa支架内捕获瘤细胞以创建多细胞微环境.
- 对抗原呈现细胞 (APC) 招募,瘤细胞包裹和Mincle受体激活的评估.
- 评估CD8+T细胞原始化和瘤回归反应对ChitoCa治疗.
主要成果:
- 奇托卡水凝成功地建立了一个in situ免疫工厂,吸引免疫细胞并捕获瘤细胞.
- 奇托卡治疗通过Mincle受体激活显著增强了APC介导的瘤细胞包裹 (增加了十倍).
- 治疗促进了瘤抗原交叉呈现,导致强大的CD8+T细胞反应和有效的瘤回归.
- 奇托卡作为单一治疗和与其他免疫疗法结合的疗效被证明是有效的.
结论:
- 奇托卡水凝作为一种有效的体内免疫工厂,将瘤细胞转化为强大的抗瘤疫苗.
- 这一策略克服了抗原处理和呈现方面的局限性,增强了T细胞介导的抗瘤免疫力.
- 奇托卡为癌症免疫疗法提供了一个有前途的创新方法,通过创建一个功能性的,类似器官的免疫.
更多相关视频
11:48Isolation Protocol of Mouse Monocyte-derived Dendritic Cells and Their Subsequent In Vitro Activation with Tumor Immune Complexes
Published on: May 31, 2018
11.4K
07:29Intramucosal Inoculation of Squamous Cell Carcinoma Cells in Mice for Tumor Immune Profiling and Treatment Response Assessment
Published on: April 22, 2019
11.5K
相关概念视频
01:27Tumor Immunotherapy
509
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.
509
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
02:38Mitogens and the Cell Cycle
6.4K
Mitogens and their receptors play a crucial role in controlling the progression of the cell cycle. However, the loss of mitogenic control over cell division leads to tumor formation. Therefore, mitogens and mitogen receptors play an important role in cancer research. For instance, the epidermal growth factor (EGF) - a type of mitogen and its transmembrane receptor (EGFR), decides the fate of the cell's proliferation. When EGF binds to EGFR, a member of the ErbB family of tyrosine kinase...
6.4K
02:57Targeted Cancer Therapies
7.5K
The targeted cancer therapies, also known as “molecular targeted therapies,” take advantage of the molecular and genetic differences between the cancer cells and the normal cells. It needs a thorough understanding of the cancer cells to develop drugs that can target specific molecular aspects that drive the growth, progression, and spread of cancer cells without affecting the growth and survival of other normal cells in the body.
There are several types of targeted therapies against...
There are several types of targeted therapies against...
7.5K