通过含有链内硫原子的氨酸脂肪酸杀线粒体向和抗癌细胞杀死
Bala Umashankar1, Curtis Pazderka2, Edward York2
1Pharmacogenomics and Drug Development Group, Discipline of Pharmacology, School of Medical Sciences, and School of Pharmacy, Faculty of Medicine and Health, University of Sydney, New South Wales, 2006, Australia.
Journal of pharmaceutical sciences
|July 31, 2025
概括
氨酸脂肪酸向瘤细胞线粒体,诱导细胞死亡. 一种改性化合物,3-thiaCTU,通过有效地损害ATP的产生和杀死乳腺癌细胞,显示出作为一种新型抗癌剂的希望.
科学领域:
- 生物化学 生物化学
- 线粒体生物学 线粒体生物学
- 癌症治疗方法 癌症治疗方法
背景情况:
- 氨酸脂肪酸通过向瘤细胞线粒体,产生活性氧物种 (ROS) 和激活内质网膜 (ER) - 压力来诱导癌细胞死亡.
- 这些化合物通过穿过内部线粒体膜的质子转移来解离电子运输和ATP生产.
- 像CTU这样的简单的arylurea具有低强度,限制了它们的抗癌药物开发潜力.
研究的目的:
- 评估具有链内硫异原子的CTU类型的线粒体向和抗癌活性.
- 确定一种分子,用于进一步的临床前开发,作为一种新型抗癌剂.
主要方法:
- 合成和评估CTU类似物与硫异原子在3或13位置.
- 评估线粒体向,ROS生成,ER压力激活和癌细胞死亡.
- 测量ATP生产和穿过内线粒体膜的质子运输.
主要成果:
- 3-thiaCTU替代物在MDA-MB-231乳腺癌细胞中最佳地降低了ATP的产生,并诱导了细胞死亡.
- 替代13-没有增强,在某些情况下减弱,3-CTU的抗癌作用.
- 三硫原子的结合对于强大的抗癌活性和质子运输中断至关重要.
结论:
- 3-thiaCTU是一种分子,具有作为一种新型抗癌疗法的临床前开发显著潜力.
- 硫异原子的位置极大地影响了该化合物在向癌细胞线粒体中的有效性.
- 这项研究强调了专门设计的氨酸脂肪酸在癌症治疗中的治疗潜力.
相关概念视频
01:46Electron Transport Chain: Complex I and II
15.0K
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...
15.0K
02:57Targeted Cancer Therapies
7.8K
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...
7.8K
01:10Drugs 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
01:15Drugs 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
01:37Mitochondria
15.0K
Mitochondria are eukaryotic cellular organelles that are known to produce energy through a process called oxidative phosphorylation. Besides their primary function, mitochondria are involved in various cellular processes, including cell growth, differentiation, signaling, metabolism, and senescence. Age-related changes cause a decline in mitochondrial quality and integrity due to increased mitochondrial mutations and oxidative damage. Thus, aging can severely impact mitochondrial functions,...
15.0K