基于自我编织技术的Glutathione响应和硫化自生成纳米,以优化癌症免疫治疗
Shuangquan Gou1, Wenbo Geng1, Yanan Zou1
1Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing 40044, China.
ACS nano
|March 28, 2024
概括
研究人员为癌症免疫治疗开发了酸涂层的丝纤维蛋白纳米 (HA-gNCs). 这些纳米提供药物,并通过调节瘤微环境来增强免疫检查点阻塞疗法.
科学领域:
- 生物材料科学 生物材料科学
- 纳米技术 纳米技术
- 癌症研究 癌症研究
背景情况:
- 理想的药物载体需要高的药物载荷,高效的封装和有针对性的释放.
- 癌症免疫疗法面临来自免疫抑制瘤微环境 (ITME) 的挑战.
研究的目的:
- 开发一种新型的药物输送系统,用于癌症免疫治疗的酸涂层丝纤维蛋白纳米 (HA-gNCs).
- 研究HA-gNCs在同时提供抗炎药物和免疫检查点阻塞剂方面的潜力.
- 探索由瘤微环境触发的响应性药物释放机制.
主要方法:
- 制造HA-gNCs使用模板引导自编织相隔丝纤维素在反向微乳液.
- 在HA-gNCs的空洞结构内封装贝他酸 (BetP) 和PD-L1抗体 (αPD-L1).
- 使用硫酸硫酸盐交叉连接剂用于GSH响应性药物释放和硫化 (H2S) 生产.
主要成果:
- HA-gNCs证明了BetP和αPD-L1.1的有效同时封装.
- 硫碳酸盐交叉链接器被谷氨 (GSH) 快速切割,使瘤组织中具有响应性的药物释放和H2S产生.
- 释放的BetP和生成的H2S的协同效应在时间上调节了ITME,增强了αPD-L1疗法.
结论:
- HA-gNCs 作为一种有效的自助平台,用于提供癌症药物.
- 开发的纳米显示了通过向瘤微环境来放大癌症免疫治疗的巨大潜力.
- 这种方法提供了一种有前途的策略来打击瘤生长,转移和复发.
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