多价碳水化合物纳米复合材料用于瘤微环境重塑以增强抗瘤免疫力
Gyu Hwan Hyun1, Da-Hye Jeong2,3, Yoon Young Yang1
1College of Pharmacy, Seoul National University, Seoul 08826, Republic of Korea.
ACS nano
|June 12, 2023
概括
一种新型的富含银河的纳米复合材料 (Gal-NC) 通过重新编程瘤微环境来增强癌症免疫疗法. 这种碳水化合物纳米辅助剂增强了免疫细胞的活动,改善了对现有治疗的反应.
科学领域:
- 碳水化合物的化学成分
- 纳米技术 纳米技术
- 癌症免疫学 癌症免疫学
- 免疫治疗是一种免疫疗法.
背景情况:
- 目前的癌症免疫疗法旨在修改瘤微环境 (TME),以增强抗瘤反应.
- 需要创新的免疫调节辅助剂来恢复减弱的免疫力并提高治疗疗效.
- 在TME中开发安全有效的策略来调节先天免疫力对于推进癌症治疗至关重要.
研究的目的:
- 开发一种新的银河系丰富纳米复合材料 (Gal-NC) 用于天生的免疫调节.
- 将Gal-NC描述为向巨细胞的碳水化合物纳米辅助剂.
- 评估Gal-NC作为癌症免疫疗法的辅助剂的潜力,特别是在组合疗法中.
主要方法:
- 原生碳水化合物结构的酶性转化以产生Gal-NC.
- -NC的特征,包括其成分和细胞向能力.
- 对Gal-NC对瘤相关巨细胞 (TAMs) 和TME中细胞毒性T细胞的免疫调节作用的评估.
- 在临床前癌症模型中对加尔-NC与αPD-1免疫疗法结合的评估.
主要成果:
- 一种碳水化合物纳米辅助剂Gal-NC已成功开发出具有巨细胞向特性的功能.
- -NC激活了托尔类受体4 (TLR4),导致TAMs向免疫刺激的M1类表型的再极化.
- 内细胞毒性T细胞种群被Gal-NC通过TAM再教育增加.
- 当与αPD-1免疫疗法相结合时,Gal-NC协同增强了T细胞介导的抗瘤反应.
结论:
- -NC证明了有效,稳定和生物安全的先天免疫调节.
- 开发的Gal-NC显示出作为免疫检查点阻塞组合疗法的辅助剂的巨大潜力.
- 本研究提出了一种用于设计基于碳水化合物的纳米复合材料的糖基工程策略,用于高级癌症免疫疗法.
相关概念视频
The Tumor Microenvironment
6.7K
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...
6.7K
Tumor Immunotherapy
575
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.
575


