瘤微环境重编程改善了在肉瘤中基于纳米医学的化疗免疫疗法
Antonia Charalambous1, Fotios Mpekris1, Myrofora Panagi1
1Cancer Biophysics Laboratory, Department of Mechanical and Manufacturing Engineering, University of Cyprus, Nicosia, Cyprus.
Molecular cancer therapeutics
|June 28, 2024
概括
凯托提芬重编程瘤微环境 (TME),以改善癌症治疗. 这种机理疗法增强了药物输送,并提高了对罕见肉瘤的化疗免疫疗法的有效性.
科学领域:
- 在瘤学瘤学.
- 癌症生物学 癌症生物学
- 纳米医学是一种纳米医学.
背景情况:
- 瘤是一种罕见的癌症,由于瘤微环境 (TME) 异常,具有具有挑战性的治疗方法.
- 较差的TME输液限制了药物输送和治疗在肉瘤中的疗效.
- 新的治疗策略对于改善肉瘤患者的生存率至关重要.
研究的目的:
- 为了研究基托蒂芬在重编程TME治疗肉瘤治疗中的有效性.
- 为了评估基托蒂芬与基于纳米医学的化学免疫疗法相结合.
- 探索基托芬治疗效果的机械基础.
主要方法:
- 使用了纤维肉瘤和骨肉瘤的小鼠模型.
- 与化脂质体多克索鲁比辛 (PLD) 或PLAD和抗PD-1抗体一起服用基托蒂芬.
- 通过剪切波弹性学和对比增强超声波来评估TME变化.
- 分析了免疫细胞透和巨细胞两极分化.
主要成果:
- 凯托提芬降低了瘤的硬性和增加了输液,提高了纳米医药的疗效.
- 组合治疗显示出改善的抗瘤反应,特别是与alendronate.
- 凯托提芬增加了细胞毒性T细胞和M1巨细胞,同时减少了调节性T细胞.
结论:
- 基托介导的TME重编程改善了基于纳米医学的癌症瘤化疗-免疫疗法.
- 针对TME提供了一个有希望的策略,以克服罕见癌症的治疗耐药性.
- 机械疗法,纳米药物和免疫疗法的结合需要进一步研究.
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
510
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.
510