一个局部适应的纳米反应器用于自抑制增强级联饥饿化学动力学疗法
Chunhui Wang1, Ruihao Li1, Chunyan Dong1
1School of Chemical Science and Engineering, Breast Cancer Center, Shanghai East Hospital, Tongji University, Shanghai 200092, PR China.
Journal of colloid and interface science
|May 12, 2025
概括
一种新型纳米反应器 (MCGH) 通过结合饥饿和化学动力学治疗来增强癌症治疗,同时抑制自. 它选择性地向瘤,通过量身定制的催化反应,在正常组织中最大限度地减少副作用.
科学领域:
- 生物医学工程 生物医学工程
- 纳米医学是一种纳米医学.
- 在瘤学瘤学.
背景情况:
- 瘤治疗策略包括破坏能量供应和氧化还原平衡.
- 克服瘤自我保护和最大限度地减少副作用仍然是一个重大挑战.
研究的目的:
- 开发一个纳米反应器 (MCGH) 用于自抑制增强级联饥饿化学动力疗法.
- 选择性地增强瘤治疗并最大限度地减少对正常组织的损伤.
主要方法:
- 含有葡萄糖氧化酶 (GOx) 的MCGH催化了内葡萄糖转化为H2O,诱导饥饿并为化学动力学疗法 (CDT) 提供基质.
- 瘤微环境触发MCGH降解,释放Mn2+以催化芬顿类反应,产生用于CDT的基 (OH).
- MCGH抑制了自,阻断了OH清除和营养补充,放大了治疗疗效.
主要成果:
- MCGH选择性地向瘤,提高治疗效率.
- 纳米反应器通过特定组织的级联反应,最大限度地减少对正常组织的损伤.
- 在正常组织中,MCGH表现出类似酶 (CAT) 的活性,解毒H2O2.
结论:
- MCGH 能够使用精确的纳米医学方法来增强癌症治疗.
- 双作用纳米反应器为克服瘤抵抗提供了一个有希望的策略.
- 这项工作为设计具有针对治疗应用的定制催化级流的材料提供了新的视角.
相关概念视频
Autophagy
5.1K
Autophagy is a self-digesting process by which a cell protects itself from threats both within and outside the cell, ranging from abnormal proteins to invading bacteria. In this process, obsolete components of the cell and invading microbes are degraded by hydrolytic enzymes active in an acidic environment of the lysosomal lumen.
An autophagic pathway consists of a series of signaling events activated in response to diverse stress and physiological conditions such as food deprivation,...
An autophagic pathway consists of a series of signaling events activated in response to diverse stress and physiological conditions such as food deprivation,...
5.1K
Autophagic Cell Death
3.3K
Christian de Duve discovered “autophagy,” a process in which cellular components are engulfed by membrane-bound organelles called autophagosomes. The autophagosomes then fuse with lysosomes to digest the enclosed contents. Autophagy is generally activated in cells to prevent cell death. However, cell death is triggered when the damage is beyond repair.
Autophagy and Apoptosis
Autophagy can activate apoptosis. In normal conditions, the autophagy activating protein Beclin-1 and...
Autophagy and Apoptosis
Autophagy can activate apoptosis. In normal conditions, the autophagy activating protein Beclin-1 and...
3.3K


