装有博尔特佐米布的混合囊实现了"三合一"效果,用于增强乳腺癌治疗
Jianhao Liu1, Xiaoman Xu1, Yanying Li2
1School of Pharmacy, Weifang Medical University, Weifang 261053, P.R. China. zhangli2020@wfmc.edu.cn.
Biomaterials science
|June 12, 2023
概括
这项研究引入了用于乳腺癌治疗的新型博特佐米布载脂质/甘油酸混合 (BTZ-LGs). BTZ-LG有效地杀死瘤细胞,抑制癌症相关纤维细胞 (CAFs),并促进抗瘤免疫反应.
科学领域:
- 生物医学工程 生物医学工程
- 癌症研究 癌症研究
- 免疫学 免疫学 免疫学
背景情况:
- 瘤微环境 (TME) 调节是癌症治疗的一个关键策略.
- 博尔特佐米布 (BTZ) 通过NF-κB通路的抑制,酶-3激活和CD8+ T细胞调节表现出抗癌性质.
- 在固体瘤中增强BTZ输送对于疗效至关重要.
研究的目的:
- 开发和评估带有博特佐米布的脂质/糖醇酸混合小粒 (BTZ-LGs),用于"三合一"的癌症治疗方法.
- 评估BTZ-LG在杀死瘤细胞,抑制癌症相关纤维细胞 (CAF) 和增强抗瘤免疫反应方面的疗效.
- 在乳腺癌模型中研究BTZ-LG的治疗潜力.
主要方法:
- 用BTZ加载的脂质/糖醇酸混合小粒 (BTZ-LGs) 的制备和表征.
- 在体外细胞毒性测定使用4T1细胞和共同培养的4T1/NIH3T3细胞.
- 在携带瘤的小鼠模型中进行体内研究,以评估治疗效果.
- 对分子标记物 (α-SMA,caspase-3,E-cadherin,N-cadherin) 和免疫因子 (IL-2,CD8+ T细胞) 的分析.
主要成果:
- 在体外,BTZ-LG对瘤细胞和CAFs有增强的细胞毒性.
- 在携带瘤的小鼠模型中观察到优异的体内治疗效果.
- BTZ-LG有效调节与瘤细胞和CAF相关的标记物 (α-SMA,caspase-3,E-cadherin,N-cadherin).
- 免疫学分析显示IL-2表达增加,激活抗瘤T细胞,并恢复CD8+T细胞功能.
结论:
- BTZ-LG可以实现"三合一"的效果:杀死瘤细胞,抑制CAF和增强免疫反应.
- 这种配方为乳腺癌提供了一个有希望和有效的治疗策略.
- 开发出来的菌体提高了BTZ用于固体瘤治疗的药用性.
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