针对瘤的多种代谢调节,以突破化学动力疗法的抗瘤疗效
Fan Gao1, Jian-Hui Dong1, Chun Xue1
1Institute of Advanced Materials and Flexible Electronics (IAMFE), School of Chemistry and Materials Science, Nanjing University of Information Science & Technology, Nanjing, 210044, P. R. China.
Small (Weinheim an der Bergstrasse, Germany)
|January 18, 2024
概括
这项研究开发了一个纳米平台,它结合了自抑制剂 (氨酸) 和葡萄糖氧化酶,通过向瘤代谢来增强癌症治疗. 这种方法显著提高了化学动力学治疗 (CDT) 对瘤的有效性.
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:
- 内代谢干扰可以增强抗瘤治疗.
- 瘤相关巨细胞 (TAMs) 在瘤代谢和修复中发挥作用.
- 化学动力学疗法 (CDT) 是一种有前途的癌症治疗策略.
研究的目的:
- 开发一种瘤向纳米平台 (CQ@MIL-GOX@PB) 以获得协同作用的抗瘤效应.
- 研究癌细胞和TAMs中自和葡萄糖代谢的联合抑制.
- 通过代谢调节来增强化学动力学治疗 (CDT) 的疗效.
主要方法:
- 一个生物素导航纳米平台 (CQ@MIL-GOX@PB) 的制造,同时载有 (CQ) 和葡萄糖氧化酶 (GOX).
- 在酸性瘤溶解体中研究Fe离子和CQ的释放.
- 评估GOX的葡萄糖消耗,H2O2生成,以及TAM中CQ介导的NO合成代谢.
主要成果:
- 纳米平台有效释放Fe离子和CQ,抑制自依赖的修复.
- 葡萄糖氧化酶消耗葡萄糖,产生H2O2用于CDT,并减少瘤能量代谢.
- 在TAM中,CQ促进NO的合成,进一步提高CDT的敏感度.
结论:
- 开发的纳米平台通过同时调节瘤细胞和TAM代谢,显著增强抗瘤效应.
- 这种多代谢调节策略克服了传统CDT纳米剂的局限性.
- 这种方法为改善各种抗瘤治疗提供了一个新的视角.
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