用于增强化学动力学癌症治疗的自我定向纳米系统
Kanwal Asif1,2,3, Md Mahbubur Rahman4, Vincenzo Canzonieri1,5
1Pathology Unit, Centro di Riferimento Oncologico di Aviano (C.R.O.) IRCCS, 33081, Aviano, Italy. m.adeel@imperial.ac.uk.
Biomaterials science
|March 18, 2025
概括
这项研究引入了酸 (ZnNP) 作为化学动力学疗法 (CDT) 的新型催化剂. ZnNP有效地在癌细胞内产生反应性氧物种 (ROS),为癌症治疗提供了一个有前途的新策略.
科学领域:
- 生物医学工程 生物医学工程
- 纳米技术 纳米技术
- 在瘤学瘤学.
背景情况:
- 化学动力学疗法 (CDT) 通过芬顿反应显示出癌症治疗的前景.
- 目前的CDT疗效受到细胞内H2O2分解和ROS生成的催化剂离子不足的限制.
- 瘤特异性状况,如酸度,在CDT策略中往往未得到充分利用.
研究的目的:
- 开发一种新型材料,以增强芬顿类反应,用于选择性癌细胞根除.
- 研究用于改进CDT的量身定制材料中双金属 (Zn2+,Fe2+) 的潜力.
- 为了利用瘤酸度提高治疗效果,在没有外部刺激的情况下.
主要方法:
- 通过简单的混合技术合成化 (ZnNP).
- ZnNP的结构和形态特征.
- 在体外评估ZnNP的抗瘤机制,包括细胞吸收,ROS生成和基因激活.
- 卵巢癌有机体的ex vivo生物相容性测试和体外研究.
主要成果:
- ZnNP有效地增加了细胞内H2O2,产生基激素,超氧化激素和过氧.
- ZnNP被内化到溶解体中,利用它们的酸性pH值来促进ROS的产生.
- 在卵巢癌模型中,ZnNP证明了与健康的肝细胞的生物相容性和治疗有效性.
- 观察到多个氧化基因的激活,支持抗瘤机制.
结论:
- ZnNP通过芬顿式反应作为多个ROS的强有力的生成器,增强化学动力学疗法.
- 双质物质利用瘤酸度进行向的癌细胞破坏.
- 对于高度血清性卵巢癌 (HGSOC),ZnNP是一个有前途的治疗策略.
相关概念视频
Targeted Cancer Therapies
7.4K
The targeted cancer therapies, also known as “molecular targeted therapies,” take advantage of the molecular and genetic differences between the cancer cells and the normal cells. It needs a thorough understanding of the cancer cells to develop drugs that can target specific molecular aspects that drive the growth, progression, and spread of cancer cells without affecting the growth and survival of other normal cells in the body.
There are several types of targeted therapies against...
There are several types of targeted therapies against...
7.4K
Combination Therapies and Personalized Medicine
4.8K
Combining two or more treatment methods increases the life span of cancer patients while reducing damage to vital organs or tissue from the overuse of a single treatment. Combination therapy also targets different cancer-inducing pathways, thus reducing the chances of developing resistance to treatment.
The combination of the drug acetazolamide and sulforaphane is a good example of combination therapy to treat cancer. The cells in the interior of a large tumor often die due to the hypoxic and...
The combination of the drug acetazolamide and sulforaphane is a good example of combination therapy to treat cancer. The cells in the interior of a large tumor often die due to the hypoxic and...
4.8K


