相关实验视频

Updated: Jun 11, 2025

Enhancement of Apoptotic and Autophagic Induction by a Novel Synthetic C-1 Analogue of 7-deoxypancratistatin in Human Breast Adenocarcinoma and Neuroblastoma Cells with Tamoxifen

Enhancement of Apoptotic and Autophagic Induction by a Novel Synthetic C-1 Analogue of 7-deoxypancratistatin in Human Breast Adenocarcinoma and Neuroblastoma Cells with Tamoxifen

Published on: May 30, 2012

具有自我组装性质的双作用 (IV) 复合物通过线粒体应激途径抑制前列腺癌

Muhammad Nafees¹, Muhammad Hanif², Raja Muhammad Asif Khan³

¹Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin, 150001, P.R. China.

|October 9, 2024

概括

新的 (IV) 复合物显示了增强的抗癌能力. 这些双作用化合物,如PL-III,有效地向瘤,为传统化疗提供了有希望的替代方案,并减少了副作用.

科学领域:

药用化学医学化学
纳米技术纳米技术
癌症生物学癌症生物学

背景情况:

(IV) 前药提供向的癌症治疗,副作用比 (II) 药物少.
开发具有增强疗效和有针对性的复合物仍然是瘤学的关键挑战.

研究的目的:

通过将氧板与石灰酸结合,合成和表征新的双作用 (IV) 复合物.
评估这些新型复合物的体外抗癌活性,细胞吸收和作用机制.

主要方法:

通过将氧与石灰酸结合,合成双作用 (IV) 复合物 (PL-I,PL-II,PL-III).
在水性介质中自我组装成纳米颗粒的特征.
对细胞毒性,细胞循环停止,DNA损伤,线粒体定位,线粒体膜潜力,ROS产生和癌细胞系 (如PC3) 中的亡诱导的评估.

主要成果:

合成复合物自组装成球形纳米粒子.
在PC3细胞中,PL-III表现出优越的效力,其细胞毒性比cisplatin高10倍.
通过线粒体通路,PL-III诱导了S和G2阶段细胞周期停止,DNA损伤和细胞亡.
PL-III定位在线粒体和细胞质中,破坏线粒体功能并增加ROS.

结论:

双作用 (IV) 复合物,特别是PL-III,显示出作为抗癌剂的巨大潜力.
石英酸和西斯普拉丁的协同作用,加上针对性线粒体破坏,提高了治疗疗效.
这些发现凸显了双作用Pt(IV) 综合体改善癌症治疗的前景.

关键词:

抗癌剂是一种抗癌剂.能源干扰能源干扰基于金属的药物基于金属的药物线粒体损伤导致线粒体损伤.前列腺癌是什么意思前列腺癌是什么意思在PtIV复合体中.自动组装自动组装

更多相关视频

Amide Coupling Reaction for the Synthesis of Bispyridine-based Ligands and Their Complexation to Platinum as Dinuclear Anticancer Agents

Amide Coupling Reaction for the Synthesis of Bispyridine-based Ligands and Their Complexation to Platinum as Dinuclear Anticancer Agents

Published on: May 28, 2014

Cell Death Associated with Abnormal Mitosis Observed by Confocal Imaging in Live Cancer Cells

Cell Death Associated with Abnormal Mitosis Observed by Confocal Imaging in Live Cancer Cells

Published on: August 21, 2013

相关概念视频

Electron Transport Chain: Complex I and II

Electron Transport Chain: Complex I and II

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...

Abnormal Proliferation

Abnormal Proliferation

Under normal conditions, most adult cells remain in a non-proliferative state unless stimulated by internal or external factors to replace lost cells. Abnormal cell proliferation is a condition in which the cell's growth exceeds and is uncoordinated with normal cells. In such situations, cell division persists in the same excessive manner even after cessation of the stimuli, leading to persistent tumors. The tumor arises from the damaged cells that replicate to pass the damage to the...

The Intrinsic Apoptotic Pathway

The Intrinsic Apoptotic Pathway

Internal cellular stress, such as cellular injury or hypoxia, triggers intrinsic apoptosis. The B-cell lymphoma 2 (Bcl-2) family of proteins are the primary regulators of the intrinsic apoptotic pathway. For example, during DNA damage, checkpoint proteins, such as Ataxia Telangiectasia Mutated (ATM protein) and Checkpoints Factor-2 (Chk2) proteins, are activated. These proteins phosphorylate p53 which further activates pro-apoptotic proteins, such as Bax, Bak, PUMA, and Noxa, and inhibits...

Interactions Between Signaling Pathways

Interactions Between Signaling Pathways

Signaling cascades usually lack linearity. Multiple pathways interact and regulate one another, allowing cells to integrate and respond to diverse environmental stimuli.
Convergence and divergence, and cross-talk between signaling pathways
Two distinct signaling pathways can converge on a single functional unit, which may either be a single protein or a complex of proteins. The response is either functionally distinct or synergistic between the two pathways but different from the response...

Drugs that Stabilize Microtubules

Drugs that Stabilize Microtubules

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...

Anaphase Promoting Complex

Anaphase Promoting Complex

The stepwise destruction of specific proteins is necessary for the progression and completion of the cell cycle. Such proteins are ubiquitinated by ubiquitin ligases and then subsequently destroyed by the proteasome. The SCF (Skp1/Cullin/F-box) and the anaphase-promoting complex (APC) are two important ubiquitin ligases involved in cell cycle progression. While SCF is active throughout the cell cycle, APC gets activated during metaphase to anaphase transition. Cdc20 or Cdh1 binds to APC and...