调查Cu (II) 和一氧化碳 (CO) 的联合毒性;使用Cu (II) 黄酸盐复合物的细胞CO输送
Stephen N Anderson1, C Taylor Dederich1, Josiah G D Elsberg1
1Department of Chemistry & Biochemistry, Utah State University, 0300 Old Main Hill, Logan, UT 84322-0300, United States.
ChemMedChem
|February 18, 2024
概括
这项研究引入了一种用于癌症治疗的新型铜-黄醇复合物. 它将活性氧物种的产生与一氧化碳 (CO) 的释放相结合,增强抗癌效应和细胞吸收.
科学领域:
- 材料科学 材料科学 材料科学
- 药用化学 医学化学
- 生物化学 生物化学
背景情况:
- 一氧化碳 (CO) 输送分子被探索为抗癌疗法.
- 将金属离子芬顿反应性与CO输送相结合,是抗癌剂的新策略.
- 缺乏对小分子双作用剂的系统研究.
研究的目的:
- 开发和评估一个Cu (II) 黄酸复合物,用于联合抗癌作用.
- 研究通过ROS生成和CO释放增强细胞毒性的机制.
- 评估金属复合物对黄醇吸收和二氧化碳排放的影响.
主要方法:
- 一个Cu (II) 类黄酸复合物的合成.
- 使用细胞毒性试验评估抗癌效应.
- 焦显微镜用于研究细胞吸收黄醇.
- 评估反应性氧物种 (ROS) 生产和CO释放的情况.
主要成果:
- (II) 黄酸复合物表现出显著的抗癌作用.
- 铜介导的ROS生成和光诱导的CO释放得到证实.
- 在铜复合体存在时,观察到细胞对黄醇的增强吸收.
- 与自由的黄醇相比,实现了细胞内二氧化碳递送的增加.
结论:
- 金属黄酸复合物可以作为有效的双重作用抗癌剂.
- 产生的ROS和增强的CO传递的联合作用增加了细胞毒性.
- 这种方法为开发基于新材料的癌症治疗方法提供了一个有希望的策略.
更多相关视频
08:57Sample Extraction and Simultaneous Chromatographic Quantitation of Doxorubicin and Mitomycin C Following Drug Combination Delivery in Nanoparticles to Tumor-bearing Mice
Published on: October 5, 2017
10.9K
13:51Synthesis of Core-shell Lanthanide-doped Upconversion Nanocrystals for Cellular Applications
Published on: November 10, 2017
15.4K
相关概念视频
Electron Transport Chain: Complex I and II
13.3K
The mitochondrial electron transport chain (ETC) is the main energy generation system in the eukaryotic cells. However, mitochondria also produce cytotoxic reactive oxygen species (ROS) due to the large electron flow during oxidative phosphorylation. While Complex I is one of the primary sources of superoxide radicals, ROS production by Complex II is uncommon and may only be observed in cancer cells with mutated complexes.
ROS generation is regulated and maintained at moderate levels necessary...
ROS generation is regulated and maintained at moderate levels necessary...
13.3K
Phase II Reactions: Miscellaneous Conjugation Reactions
62
Phase II biotransformations are detoxification mechanisms that conjugate xenobiotics with endogenous substances, neutralizing their toxicity.
A key example involves the conjugation of cyanide ions, which impair cellular respiration and alter hemoglobin into non-oxygen-carrying cyanmethemoglobin. To neutralize this threat, a sulfur atom from thiosulphate is transferred to the cyanide ion, catalyzed by the enzyme rhodanese, resulting in an inactive compound called thiocyanate. The production of...
A key example involves the conjugation of cyanide ions, which impair cellular respiration and alter hemoglobin into non-oxygen-carrying cyanmethemoglobin. To neutralize this threat, a sulfur atom from thiosulphate is transferred to the cyanide ion, catalyzed by the enzyme rhodanese, resulting in an inactive compound called thiocyanate. The production of...
62
