由M2 TAM特异性DDS引起的抗瘤免疫反应通过C型瘦素CD209b使用胆固醇拉兰纳米凝作为蛋白质药物载体
Takaaki Nakatsukasa1,2, Daisuke Muraoka1,3, Situo Deng1
1Department of Oncology, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki 852-8523, Japan. hikeda@nagasaki-u.ac.jp.
Biomaterials science
|March 17, 2025
概括
研究人员确定CD209b是药物递送系统 (DDS) 的新目标,用于对抗癌症免疫疗法耐药性. 这种策略有效地向与瘤相关的巨细胞 (TAMs),增强抗瘤免疫力并抑制瘤生长.
科学领域:
- 在瘤学瘤学.
- 免疫学 免疫学 免疫学
- 纳米技术纳米技术
- 药物运输 药物运输 药物运输
背景情况:
- 癌症免疫疗法耐药性是一个重大的临床挑战.
- 瘤相关巨细胞 (TAMs) 极大地影响免疫治疗的敏感性.
- 目前的TAM向药物递送系统 (DDS) 具有有限的向分子选择.
研究的目的:
- 为了评估胆固醇普鲁兰 (CHP) 纳米凝针对mDC-SIGN (CD209b) 针对TAM特异性药物输送.
- 为了确定新的向分子来增强TAM特异性的DDS疗效.
- 在临床前癌症模型中评估CD209b向纳米凝的治疗潜力.
主要方法:
- 开发的CHP纳米凝封装Pseudomonas外毒素A.开发.
- 将纳米凝注入瘤携带的小鼠模型.
- 通过CD209b表达来评估纳米凝对TAM的向.
- 评估M2 TAM丰度和抗瘤免疫反应的变化.
主要成果:
- 电力发电纳米凝成功向表达CD209b的TAM.
- 治疗显著减少了CD209b阳性M2TAMs.
- 观察到增强的抗瘤免疫反应和抑制瘤生长.
- 即使在低免疫性瘤模型中,也证明了有效性.
结论:
- CD209b是M2 TAM特异性DDS的可行和有效的点分子.
- 针对CD209b的纳米凝显示出新型癌症治疗的前景.
- 这种方法可以通过调节瘤微环境来克服免疫疗法耐药性.
更多相关视频
09:57Real Time Detection of In Vitro Tumor Cell Apoptosis Induced by CD8+ T Cells to Study Immune Suppressive Functions of Tumor-infiltrating Myeloid Cells
Published on: January 29, 2019
22.3K
09:15Experimental Melanoma Immunotherapy Model Using Tumor Vaccination with a Hematopoietic Cytokine
Published on: February 24, 2023
3.3K
相关概念视频
01:27Tumor Immunotherapy
457
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.
457
02:17The Tumor Microenvironment
6.5K
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...
6.5K