在癌症干细胞中诱导离子风暴的策略,以有效治疗癌症
Zhen Chang1, Chunlan Wu2, Xiayi Wu3,4,5
1Oral Emergency Department, Hospital of Stomatology, Zhongshan City, 73 Hubin Road, Shiqi, Zhongshan, Guangdong 528400, China.
ACS applied materials & interfaces
|July 18, 2025
概括
这项研究引入过氧化纳米颗粒 (CPNs) 来诱导癌症干细胞 (CSCs) 中的离子风暴,有效消除CSC和成熟瘤细胞,以防止复发.
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:
- 目前的癌症治疗往往无法根除癌症干细胞 (CSC),导致瘤复发.
- 向离子 (Ca2+) 恒温是癌症治疗的一个有前途的策略.
研究的目的:
- 开发一种基于过氧化纳米粒子 (CPN) 的新策略,在CSC中诱导细胞内离子风暴.
- 为了有效地消除CSC和成熟的瘤细胞,从而防止瘤复发.
主要方法:
- 氧化纳米颗粒 (HMCPN@HA4) 的合成 酸 (HA) 稳定空洞的半孔氧化纳米颗粒 (HMCPN@HA4).
- 在HMCPN@HA4中加载5(6) - - 碳素 (CE) 形成HMCPN-CE3@HA4.
- 在酸性瘤微环境 (TME) 中降解HMCPN-CE3@HA4,释放Ca2+,H2O2和CE.
- CE阻碍了Ca2+的流出,诱导了离子风暴,并促进了铁和性亡.
主要成果:
- HMCPN-CE3@HA4在MOC1侧种群 (SP) 干细胞中显示出显著的干细胞抑制.
- 在实验室中达到近80%的细胞死亡.
- 在体内静脉注射后表现出优异的抗瘤疗效和出色的生物安全性.
结论:
- 开发的HMCPN-CE3@HA4有效地诱导离子风暴,并促进铁亡和亡.
- 这一策略显示出消除CSC和成熟瘤细胞的巨大潜力,为预防瘤复发提供了一个有希望的方法.
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