黑纳米片促进线粒体的氧化酸化,改善免疫治疗结果
Yuedi Yang1,2, Mingda Zhao1,2, Jiadong Li1,2
1National Engineering Research Center for Biomaterials, Sichuan University, Chengdu, People's Republic of China.
Nature nanotechnology
|October 22, 2025
概括
PEGylated黑纳米片 (BPP) 被代谢成酸盐,增强抗癌作用. 此外,BPP还可以增强抗瘤免疫力,显示出它在癌症治疗中具有双重化疗和免疫强化作用的潜力.
科学领域:
- 生物医学工程 生物医学工程
- 纳米技术纳米技术
- 癌症研究 癌症研究
背景情况:
- 细胞内调节会影响生物合成和癌症的进展.
- 黑纳米板 (BPP) 提供潜在的治疗应用.
研究的目的:
- 在瘤细胞中研究PEGylated黑纳米片 (BPP) 的代谢命运和治疗作用.
- 评估BPP对线粒体功能,信号通路和癌症免疫反应的影响.
主要方法:
- 在瘤模型中使用外源性PEGylated黑纳米片 (BPP).
- 在瘤细胞内对BPP的代谢分析.
- 评估线粒体的氧化酸化和信号通路调节.
- 评估免疫细胞群 (CD8+,CD4+T细胞) 和细胞因子水平.
- 分析PD-L1蛋白表达和与PD-1/PD-L1抑制剂的联合治疗.
主要成果:
- 在瘤细胞中,BPP被代谢成酸盐,增强线粒体的氧化酸化.
- 在黑色素瘤细胞中,BPP治疗减弱了生存基因表达和减少了PD-L1蛋白,从而影响了癌症的进展.
- BPP促进了免疫激活,增加了促炎细胞因子,CD8+ T细胞和效应记忆CD8+ T细胞,同时减少了调节性CD4+ T细胞.
- 与PD-1/PD-L1抑制剂的联合疗法放大了BPP的免疫增强效应.
结论:
- PEGylated black phosphorus nanosheets (BPP) 作为一种双重功能剂,表现出化疗和免疫增强的特性.
- BPP的代谢到酸盐和随后的细胞过程调节提供了一个新的治疗策略.
- BPP有助于增强抗瘤免疫力和改善癌症治疗结果.
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