共同交付纳米细胞,通过协同重塑CAFs介导的瘤肌瘤和重编程免疫抑制微环境来增强TNBC免疫疗法
Yue Zhang1, Xue Han1, Ke Wang1
1School of Pharmacy, Ningxia Medical University, Yinchuan, 750004, People's Republic of China.
International journal of nanomedicine
|August 7, 2023
概括
这项研究开发了pH响应的纳米细胞 (P/A/B@NM),以改善三阴性乳腺癌 (TNBC) 的免疫检查点抑制剂 (ICI) 治疗. 组合疗法增强了CD8+T细胞的透,在不响应的TNBC模型中增强了抗瘤免疫力.
科学领域:
- 在瘤学瘤学.
- 纳米医学是一种纳米医学.
- 免疫治疗是一种免疫疗法.
背景情况:
- 由于T细胞透不足,三阴性乳腺癌 (TNBC) 对免疫检查点抑制剂 (ICI) 的反应率有限.
- 替代策略对于提高ICI在不响应TNBC病例中的疗效至关重要.
研究的目的:
- 为了评估pH响应的纳米细胞 (P/A/B@NM) 与帕克利塔克塞尔 (PTX),AMD3100和BMS-1共同加载的疗效.
- 为了激活T细胞介导的抗瘤免疫反应,对抗抗PD-1耐药的TNBC.
主要方法:
- 在体外评估P/A/B@NM细胞毒性,迁移和入侵抑制.
- 在4T1正型TNBC模型中的体内评估,监测瘤生长,转移和免疫细胞透 (CD8+ T细胞).
- 对瘤侧膜,免疫抑制微环境和CXCL12/CXCR4轴的分析.
主要成果:
- P/A/B@NM证明了对pH反应的细胞毒性,并抑制了瘤细胞的迁移/侵入.
- 该纳米药物配方通过诱导抗瘤免疫反应,有效抑制瘤生长和转移.
- 同时输送重新编程了瘤微环境,增加了CD8+T细胞的透,并协同促进了ICI治疗.
结论:
- 使用P/A/B@NM的组合疗法可以重塑瘤层和免疫抑制微环境.
- 这种方法增强了CD8+ T细胞的透,重新激活了抗瘤免疫力.
- 这些发现表明,对于用ICI治疗的不响应TNBC病例来说,这是一个有希望的策略.
更多相关视频
09:01Magnetic-, Acoustic-, and Optical-Triple-Responsive Microbubbles for Magnetic Hyperthermia and Pothotothermal Combination Cancer Therapy
Published on: May 22, 2020
3.2K
14:20Polymalic Acid-based Nano Biopolymers for Targeting of Multiple Tumor Markers: An Opportunity for Personalized Medicine?
Published on: June 13, 2014
16.8K
相关概念视频
Tumor Immunotherapy
557
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.
557
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
