响应瘤微环境的桑涂层W-dopedMoOx生物降解复合纳米材料用于光热/化学动力协同治疗
Ping Zhang1, Hongmei Bai1, Zhixiong Yao1
1College of Science, Northwest A&F University, Yang ling 712100, China.
International journal of biological macromolecules
|July 3, 2024
概括
这项研究开发了氧化纳米颗粒,用于增强癌症治疗. 这些纳米颗粒结合了光热疗法和化学动力疗法,改善了瘤细胞的根除.
科学领域:
- 生物医学工程 生物医学工程
- 材料科学 材料科学 材料科学
- 纳米技术 纳米技术
背景情况:
- 化学动力学疗法 (CDT) 使用过氧化来产生有毒的基激素用于癌症治疗.
- 目前的CDT方法存在低基生成效率,限制治疗结果.
- 将CDT与光热疗法 (PTT) 结合起来,提供了一种协同方法来增强瘤根除.
研究的目的:
- 开发一种用于组合PTT和CDT的新型纳米材料.
- 为了提高基生成的效率,用于增强化学动力学治疗.
- 评估开发材料的协同抗瘤效应,在体外和体内.
主要方法:
- 用添加氧化 (WMoOx) 的水热合成.
- 用水溶性奇多 (CS) 来修改WMoOx的表面,以创建WMoOx/CS纳米粒子.
- 对WMoOx/CS.的光热转换效率的评估
- 评估WMoOx/CS在催化H2O2用于OH生产和谷氨耗尽中的作用.
- 在体外和体内研究,以评估协同作用的抗瘤疗效.
主要成果:
- WMoOx/CS纳米颗粒的近红外光热转换效率高达52.66%.
- WMoOx有效催化H2O2以产生OH和降低细胞内谷氨水平.
- 使用WMoOx/CS的PTT和CDT结合方法在体外和体外模型中显示出显著的协同抗瘤效应.
结论:
- WMoOx/CS纳米粒子是组合PTT和CDT的一个有希望的平台.
- 开发的材料通过增加OH产量和克服谷氨清理来提高CDT的有效性.
- 这种协同方法具有提高特异性和减少副作用的有效癌症治疗的潜力.
相关概念视频
The Tumor Microenvironment
6.6K
Every normal cell or tissue is embedded in a complex local environment called stroma, consisting of different cell types, a basal membrane, and blood vessels. As normal cells mutate and develop into cancer cells, their local environment also changes to allow cancer progression. The tumor microenvironment (TME) consists of a complex cellular matrix of stromal cells and the developing tumor. The cross-talk between cancer cells and surrounding stromal cells is critical to disrupt normal tissue...
6.6K
Cancer Therapies
7.6K
Cancer therapies are various modes of treatment, such as surgery, radiation therapy, and chemotherapy that are administered to cancer patients.
However, cancer treatments can pose several challenges, as therapies used to kill cancer cells are generally also toxic to normal cells. Moreover, cancer cells mutate rapidly and can develop resistance to chemical agents or radiation therapy. Besides, all types of cancer cells may not respond to the same therapy. Some cancer cells respond to one...
However, cancer treatments can pose several challenges, as therapies used to kill cancer cells are generally also toxic to normal cells. Moreover, cancer cells mutate rapidly and can develop resistance to chemical agents or radiation therapy. Besides, all types of cancer cells may not respond to the same therapy. Some cancer cells respond to one...
7.6K
Targeted Cancer Therapies
7.5K
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...
7.5K


