一个双功能pH响应芯片,带有软水凝支持的3D瘤瘤模型,用于持续的药物输送
Upasana Gupta1, Bisma Yousuf2, Shashank Kumar Singh2
1Department of Chemical Engineering, Indian Institute of Technology Jammu, Jammu and Kashmir 18122, India. ravi.arun@iitjammu.ac.in.
Soft matter
|January 21, 2026
概括
一种新型的pH响应的水凝平台,可为细胞癌 (RCC) 治疗提供局部,持续的5-甲 (5-FU). 这种仿生系统增强了药物的有效性,并减少了3D瘤模型中的毒性.
科学领域:
- 生物材料科学 生物材料科学
- 癌症治疗 癌症治疗
- 微流体学 微流体学
背景情况:
- 细胞癌 (RCC) 由于化疗反应不佳和高毒性药物而带来治疗挑战.
- 需要局部和持续的药物输送系统来提高RCC治疗疗效.
- 现有的平台缺乏模拟瘤微环境的能力,以实现现实的药物查.
研究的目的:
- 开发一个响应pH的水凝平台,用于局部和持续的5-甲 (5-FU) 输送.
- 创建一个仿生微生理系统,用于模拟细胞癌.
- 通过使用开发的平台,评估5-FU输送的疗效和机制.
主要方法:
- 制造具有pH反应性质的碳甲基纤维素/聚乙烯醇/ (CPA) 水凝.
- 将CPA水凝集成到微流体芯片中,以创建类似3D瘤的脏瘤模型.
- 使用A498 RCC细胞评估5FU装载凝的药物载荷,释放动力学,生物相容性和细胞毒性.
主要成果:
- 该CPA水凝表现出优异的结构稳定性,热性能,以及适合在现场应用的多孔结构.
- 水凝显示了pH依赖的5-FU释放,具有更高的加载效率和在酸性瘤pH下持续释放.
- 在体外研究证实了水凝的生物相容性和各种模型系统中5-FU加载的水凝的强大,持续的细胞毒性.
- 机理学研究揭示了亡调节,表明局限于空间和生理相关的化疗效应.
结论:
- 芯片上的CPA水凝系统为局部细胞癌治疗提供了一个有前途的仿生平台.
- 该系统可实现持续和有针对性的5-FU输送,增强治疗效果,同时可能减少全身毒性.
- 该平台是机械药物查和开发新型癌症治疗的宝贵工具.
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