癌细胞膜覆盖的细菌幽灵用于对转移性肺癌的高效帕克利塔塞尔输送
Dandan Ling1,2, Xueli Jia2, Ke Wang2
1Anhui Medical University, Hefei 230032, China.
Acta pharmaceutica Sinica. B
|January 23, 2024
概括
我们开发了癌细胞膜覆盖的细菌幽灵,装有脂质体帕克利塔塞尔 (LP@BG@CCM) 治疗转移性肺癌. 这种新的化疗免疫疗法方法显著改善了肺向,并在临床前模型中减少了瘤负担.
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:
- 转移性肺癌的化疗在药物输送效率方面面临挑战.
- 细菌疗法提供免疫刺激,但由于过度免疫性,有可能引起炎症反应综合征.
研究的目的:
- 开发和评估癌细胞膜覆盖的脂质体帕克利塔塞尔载荷细菌幽灵 (LP@BG@CCM),用于增强转移性肺癌治疗.
- 调查LP@BG@CCM的协同化疗免疫治疗潜力.
主要方法:
- 层层封装,包括膜形成,电穿孔和孔外挤压,以制备LP@BG@CCM.
- 在4T1乳腺癌转移性肺癌小鼠模型中评估癌细胞毒性和体内疗效.
- 评估肺向,组织结构,细胞亡和免疫因子调节 (CD4+/CD8+T细胞,TNF-α,IFN-γ,IL-4) 的情况.
主要成果:
- 与LP@BG.BG.相比,LP@BG@CCM表现出增强的融合和对4T1癌细胞的更高毒性.
- 静脉注射LP@BG@CCM导致肺向显著改善,肺重量减少,肺部外观正常化,癌细胞亡增加.
- 服用LP@BG@CCM导致免疫反应改善,包括脏中CD4+/CD8+T细胞和肺中的关键细胞因子 (TNF-α,IFN-γ,IL-4) 的增加.
结论:
- LP@BG@CCM在向转移性肺癌和诱导协同化学免疫治疗方面表现出卓越的性能.
- 开发的LP@BG@CCM代表了治疗转移性肺癌的有希望的治疗策略.
相关概念视频
Drugs that Stabilize Microtubules
2.0K
Microtubules are dynamic structures that undergo cycles of catastrophe and rescue. The microtubules play a central role in cell division by forming the spindle apparatus for segregating the chromosomes. This makes them ideal targets for regulating dividing cells in tumors and malignant cancer cells. Microtubule stabilizing drugs help stabilize the microtubule formation and promote its polymerization. Paclitaxel was the first microtubule stabilizing agent used as anticancer drug in chemotherapy...
2.0K
Metastasis
5.5K
Metastasis is the spread of cancer cells from the original site to distant locations in the body. Cancer cells can spread via blood vessels (hematogenous) as well as lymph vessels in the body.
Epithelial-to-Mesenchymal Transition
The epithelial-to-mesenchymal transition or EMT is a developmental process commonly observed in wound healing, embryogenesis, and cancer metastasis. EMT is induced by transforming growth factor-beta (TGF-β) or receptor tyrosine kinase (RTK) ligands, which further...
Epithelial-to-Mesenchymal Transition
The epithelial-to-mesenchymal transition or EMT is a developmental process commonly observed in wound healing, embryogenesis, and cancer metastasis. EMT is induced by transforming growth factor-beta (TGF-β) or receptor tyrosine kinase (RTK) ligands, which further...
5.5K
Targeted Cancer Therapies
7.6K
The targeted cancer therapies, also known as “molecular targeted therapies,” take advantage of the molecular and genetic differences between the cancer cells and the normal cells. It needs a thorough understanding of the cancer cells to develop drugs that can target specific molecular aspects that drive the growth, progression, and spread of cancer cells without affecting the growth and survival of other normal cells in the body.
There are several types of targeted therapies against...
There are several types of targeted therapies against...
7.6K
Tumor Immunotherapy
526
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.
526


