一个高度透瘤的DNA纳米平台,用于有效地重塑免疫抑制瘤微环境
Hong Wang1, Changping Yang1,2, Tiantian Wu1,3
1CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, National Center for Nanoscience and Technology, Beijing, 100190, China.
Angewandte Chemie (International ed. in English)
|September 3, 2024
概括
这项研究介绍了一种DNA纳米平台,可以增强瘤透率,并重塑免疫抑制瘤微环境. 该平台提供化疗并触发细胞死亡,改善抗瘤免疫力.
科学领域:
- 生物医学工程 生物医学工程
- 纳米技术 纳米技术
- 癌症治疗 癌症治疗
背景情况:
- 瘤微环境的免疫抑制性和药物透率较低限制了癌症治疗的有效性.
- 开发新的策略来克服这些挑战对于改善治疗结果至关重要.
研究的目的:
- 设计和评估一个DNA纳米平台,用于增强瘤透和免疫抑制瘤微环境的重塑.
- 调查该平台在向癌症治疗中提供化疗免疫调节剂和光敏感剂的能力.
主要方法:
- 一个基于DNA结构的纳米平台被设计,通过反应性氧物种 (ROS) 敏感链接器移植gemcitabine.
- 为了有针对性的输送和ROS生成,添加了Legumain可激活的梅利丁前和甲基蓝光敏化剂.
- 在瘤透,免疫细胞死亡和微环境调节方面,纳米平台的有效性在体内被评估.
主要成果:
- 该纳米平台展示了显著的瘤透能力和瘤内的向积累.
- 激光照射触发了高效的ROS产生,导致瘤细胞的免疫细胞死亡.
- 该治疗成功地通过减少免疫抑制细胞和增加细胞毒性淋巴细胞透来重塑免疫抑制瘤微环境.
结论:
- 开发的DNA纳米平台为克服瘤微环境障碍和增强癌症治疗提供了一个有前途的战略.
- 这种多功能纳米平台为开发先进的瘤治疗提供了一种新的方法.
更多相关视频
07:44Studying the Effects of Tumor-Secreted Paracrine Ligands on Macrophage Activation using Co-Culture with Permeable Membrane Supports
Published on: November 28, 2019
7.5K
09:01Analysis of Human T Cell Activity in an Allogeneic Co-Culture Setting of Pre-Treated Tumor Cells
Published on: March 7, 2025
306
相关概念视频
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
01:27Tumor 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