疏水性适应性聚合物触发瘤细胞衍生的微粒的裂变,以增强抗癌药物输送
Haojie Liu1, Shiyi Xu1, Tuying Yong1,2,3,4,5
1National Engineering Research Center for Nanomedicine, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, 430074, China.
Advanced materials (Deerfield Beach, Fla.)
|September 27, 2023
概括
修改的瘤衍生微粒 (MPs) 有效地提供抗癌药物. 聚合物增强血液循环,瘤透和药物释放,改善癌症治疗对瘤细胞和癌症干细胞 (CSC) 的疗效.
科学领域:
- 生物材料科学 生物材料科学
- 纳米技术纳米技术
- 癌症治疗方法 癌症治疗方法
背景情况:
- 瘤细胞衍生微粒 (MPs) 显示出作为药物载体的潜力.
- 限制包括血液循环短,瘤透率低,细胞吸收效率低下.
- 对于细胞毒性增强的细胞内药物释放也存在挑战.
研究的目的:
- 为了提高瘤细胞衍生MPs的抗癌药物递送效率.
- 为了克服循环时间的限制,瘤积累和细胞内化.
- 改善细胞内药物释放和对瘤细胞和癌症干细胞 (CSCs) 的细胞毒性.
主要方法:
- 定疏水性适应性聚合物 (聚N-异烯胺) 到来自瘤细胞的MPs.
- 用抗癌药物多克索鲁比 (DOX) 加载MP.
- 在生理和瘤微环境中评估DOX载荷MP (DOX@MP) 的行为.
主要成果:
- 水友性聚合物延长了血液中DOX@MPs的循环时间.
- 在酸性瘤微环境中,聚合物变得疏水,诱导MP分裂成较小的囊泡.
- 这促进了瘤积累的增强,深入透,以及瘤细胞和CSCs的高效内化.
- 酸性溶解体中的疏水性促进了DOX向核的释放,增加了细胞毒性.
结论:
- 通过使用瘤细胞衍生MPs来改善抗癌药物输送,开发了一种简单的策略.
- 疏水性适应性聚合物提高了癌症治疗的MP性能.
- 这种方法显示出克服基于MP的药物输送系统的关键挑战的希望.
更多相关视频
07:32Preparation and Characterization of Individual and Multi-drug Loaded Physically Entrapped Polymeric Micelles
Published on: August 28, 2015
11.4K
05:08Solubility of Hydrophobic Compounds in Aqueous Solution Using Combinations of Self-assembling Peptide and Amino Acid
Published on: September 20, 2017
16.8K
相关概念视频
Targeted Cancer Therapies
7.7K
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...
7.7K
Cancer Cell Migration through Invadopodia
2.3K
Invadosome is a broad category of cell surface structures with proteolytic activity that degrades the extracellular matrix (ECM). Invadosomes are present in normal cell types, including macrophages, endothelial cells, and neurons, as well as tumor cells. Although the macrophage podosomes and tumor cell invadopodia are classified as invadosomes, they have different structures, molecular pathways, and functions. Podosomes are short structures that last for a few minutes. However,...
2.3K
Drugs that Destabilize Microtubules
2.0K
Microtubules are dynamic structures and can be regulated by microtubule targeting agents (MTAs). Microtubule destabilizing drugs are a class of MTAs that destabilize and prevent microtubules' polymerization. Both natural and synthetic chemicals can be found under this class of drugs. Vincristine and vinblastine, two vinca alkaloids, and colchicine were among the first to be discovered. These drugs can affect cells in various ways, either by inducing a change in cell morphology, preventing...
2.0K
Drugs that Stabilize Microtubules
2.1K
Microtubules are dynamic structures that undergo cycles of catastrophe and rescue. The microtubules play a central role in cell division by forming the spindle apparatus for segregating the chromosomes. This makes them ideal targets for regulating dividing cells in tumors and malignant cancer cells. Microtubule stabilizing drugs help stabilize the microtubule formation and promote its polymerization. Paclitaxel was the first microtubule stabilizing agent used as anticancer drug in chemotherapy...
2.1K
