基于阿克里丁的Chalcone 1C和ABC运输器
Ondrej Franko1, Martina Čižmáriková1, Martin Kello1
1Department of Pharmacology, Faculty of Medicine, Pavol Jozef Šafárik University, 040 11 Košice, Slovakia.
International journal of molecular sciences
|May 14, 2025
概括
一种新型的石墨烯化合物选择性地抑制了结直肠癌细胞的生长,并减少了关键的药物流量载体,主要是ABCB1. 这表明在癌症治疗中克服多药耐药性的潜力.
科学领域:
- 药理学 药理学是指药理学的学科.
- 分子生物学分子生物学
- 癌症研究 癌症研究
背景情况:
- 哈尔科纳被研究为抗癌剂.
- 癌症中的多药性耐药性 (MDR) 通常由ATP结合盒 (ABC) 载体介导.
- 抑制ABC载体是一种提高化疗疗效率的策略.
研究的目的:
- 为了研究一种新的基于阿克里丁的 (1C) 对结直肠癌细胞中的ABC输送体表达和功能的影响.
- 探索1C在克服多药耐药性的潜力.
- 阐明1C对ABCB1.1的作用机制.
主要方法:
- 在COLO 205和COLO 320细胞中对ABCB1,ABCC1和ABCG2的基因和蛋白质表达分析.
- 细胞活力测试. 细胞活力测试.
- 分子对接和ATPase活动测试.
- 加勒-1 (GAL1) 表达式分析.
主要成果:
- 化合物1C抑制了结直肠癌细胞的生长,并显著降低了COLO 320细胞中的ABCB1蛋白水平.
- 1C还降低了ABCC1蛋白水平,并在COLO 205细胞中暂时降低了GAL1的表达.
- 分子对接和ATPase测试表明,1C作为ABCB1.1.的全调节器.
- 鉴定出ABCB1和ABCC1/2是这些细胞中多药耐药性的主要贡献者.
结论:
- 新型1C通过抑制细胞生长和关键的药物流量载体,显示出作为抗癌剂的潜力.
- 1C主要影响结直肠癌细胞中的ABCB1和在较小程度上ABCC1.
- 这些发现表明GAL1和ABCB1之间可能存在相互作用,需要进一步调查.
关键词:
在ABCB1中,ABCB1是ABCB1.ABCC1ABCC1ABCC1ABCC1ABCC1ABCC1ABCC1ABCC1ABCC1ABCC1ABCC1ABCC1ABCC1ABCC1ABCC1ABCC1ABCC1ABCC1ABCC1ABCC1ABCC1ABCC1ABCC1ABCC1ABCC1ABCC1ABCC1ABCC1ABCC1ABCC1ABCC1ABCC1ABCC1ABCC1ABCC1ABCC1ABCC1ABCC1ABCC1ABCC1ABCC1ABCC1ABCC1ABCC1ABCC1ABCC1ABCC1ABCC1ABCC1ABCC1ABCC1ABCC1ABCC1ABCC1ABCC1ABCC1ABCC1ABCC1ABCC1C1C1C1C1C1C1C1C1C1C1C1C1C1C1C1C1C1C1C1C1C1C1C1C1C1C1C1C1C1C1C1C1C1C1C1C1C1C1C1C1C1C1C1这就是ABCG2ABCG2.石墨烯石墨烯石墨烯石墨烯石墨烯石膏结直肠癌结直肠癌.毒品的流量流出.表达方式表达方式表达方式表达盖莱克-1的使用情况多种药物耐药性多种药物耐药性运输商 运输商 运输商 运输商相关概念视频
ABC Transporters: Exporter
4.1K
ATP-binding cassette or ABC transporter is the largest superfamily of integral membrane proteins. The transporters have transmembrane-binding domains (TMDs) and nucleotide-binding domains (NBDs). The TMDs are specific to their substrates, whereas the NBDs are similar to engines that complete ATP hydrolysis to complete the substrate transport. They can be full transporters consisting of two TMDs and NBDs, half transporters with one TMD and NBD, while some encoded with a single TMD or NBD are...
4.1K
ABC Transporters: Importer
2.7K
ATP-binding cassette or ABC transporters are a class of ATP-driven pumps that hydrolyze ATP to move solutes across the membrane. They can be grouped into importers and exporters. While exporters are present in all domains of life, importers exist only in bacteria and some plants.
In bacteria, based on the number of transmembrane helices and the chemical nature of their substrates, the ABC importers can be divided into three types:
In bacteria, based on the number of transmembrane helices and the chemical nature of their substrates, the ABC importers can be divided into three types:
2.7K
Drug Absorption Mechanism: Carrier-Mediated Membrane Transport
3.3K
Certain large, lipid-insoluble drug molecules that resemble amino acids, peptides, or glucose, require specialized carrier proteins to facilitate their diffusion across cell membranes. This transport can occur through either facilitated diffusion, which does not require energy input, or active transport, which does require energy input.
Facilitated diffusion is a passive process that utilizes human Solute Carrier (SLC) transporters. These transporters bind to the drug, undergo structural...
Facilitated diffusion is a passive process that utilizes human Solute Carrier (SLC) transporters. These transporters bind to the drug, undergo structural...
3.3K
Direct-Acting Cholinergic Agonists: Pharmacokinetics
1.0K
Direct-acting cholinergic agonists, such as synthetic choline esters and naturally occurring alkaloids, exert their effects by enhancing the actions of acetylcholine and stimulating the parasympathetic nervous system. Synthetic choline esters share structural similarities with acetylcholine. For example, they have a positively charged quaternary ammonium or onium group, contributing to their hydrophilic characteristics. As a result, they are poorly absorbed in the body through oral...
1.0K
Secondary Active Transport
6.6K
One example of how cells use the energy contained in electrochemical gradients is demonstrated by glucose transport into cells. The ion vital to this process is sodium (Na+), which is typically present in higher concentrations extracellularly than in the cytosol. Such a concentration difference is due, in part, to the action of an enzyme "pump" embedded in the cellular membrane that actively expels Na+ from a cell. Importantly, as this pump contributes to the high concentration of...
6.6K
Hepatic Drug Clearance: Role of Transporters
29
In the liver and bile canaliculi, influx and efflux transporters modification can influence intrinsic clearance. Transporters play a significant role in moving drugs within liver cells. Elaborate models, such as the Biopharmaceutical Classification System (BCS), are essential to relate transporters to drug disposition. This system categorizes drugs into four classes based on solubility and permeability, providing insights into elimination routes and the effects of transporters following oral...
29


