作为乙胆酶抑制剂和抗癌剂的含库尔库明类化合物:合成,生物评估和计算洞察力
Ferah Comert Onder1,2, Kadircan Ural3, Alper Onder4
1Department of Medical Biology, Faculty of Medicine, Çanakkale Onsekiz Mart University, 17020, Çanakkale, Türkiye. ferahcomertonder@comu.edu.tr.
Cell biochemistry and biophysics
|September 12, 2025
概括
一种含的新型化合物,化合物A,显示出强大的乙胆酶抑制,超过了现有的药物. 它还表现出适度的抗癌活性,表明阿尔茨海默病和癌症治疗的双重潜力.
科学领域:
- 药用化学 医学化学
- 神经科学是一个神经科学.
- 在瘤学瘤学.
背景情况:
- 阿尔茨海默氏症和癌症对全球健康造成重大负担.
- 开发针对共享生物通路的治疗方法提供了一个有希望的策略.
- 库尔库明的类似物因其潜在的治疗益处而受到探索.
研究的目的:
- 合成和评估一种含的新型黄素类化合物 (化合物A) 作为乙胆化酶 (AChE) 抑制剂.
- 评估A化合物对乳腺癌和结直肠癌细胞系的细胞毒性作用.
- 通过计算方法研究A化合物的结合相互作用和疗效.
主要方法:
- 一种含的黄素类化合物的合成.
- 在体外测定ACHE抑制和细胞毒性.
- 分子动力学 (MD) 模拟和MM/GBSA计算以分析结合亲和关系.
主要成果:
- 化合物A表现出强大的ACHE抑制活性 (IC50 = 22.89 ± 2.32 nM),表现优于多尼佩西尔和塔克林.
- 对MCF-7和BT20癌细胞系 (IC50值~40-41μM) 观察到适度的细胞毒性作用.
- 计算分析显示,A化合物与AChE和BChE的强有力的结合相互作用,与黄素和塔克林相比,具有更高的结合自由能量.
结论:
- 化合物A是一种强大的ACHE抑制剂,具有有前途的抗癌特性.
- 其双重活动使其成为进一步研究神经退行性疾病和癌症治疗的有价值候选人.
- 含的结构有助于提高其治疗潜力.
相关概念视频
01:29Indirect-Acting Cholinergic Agonists: Chemistry and Structure-Activity Relationship
925
Indirect-acting cholinergic agonists are agents that interact with the acetylcholinesterase enzyme in the synaptic cleft, preventing the breakdown of acetylcholine into choline and acetate. Consequently, the concentration of acetylcholine in the synaptic cleft increases. These agonists can be classified into reversible and irreversible inhibitors based on their duration of action.
Reversible inhibitors display short to medium durations of action. Short-acting agents include simple alcohols with...
Reversible inhibitors display short to medium durations of action. Short-acting agents include simple alcohols with...
925
01:29Cholinergic Antagonists: Chemistry and Structure-Activity Relationship
2.7K
Cholinergic antagonists bind to cholinergic receptors and limit the effects of acetylcholine and other cholinergic agonists. Based on the specific cholinergic receptor affinity, these antagonists are classified as muscarinic or nicotinic. Anticholinergics interrupt parasympathetic innervations while sympathetic innervations remain uninterrupted. Muscarinic antagonists are also called 'muscarinic antagonists', 'antimuscarinics', or 'parasympatholytics'. Nicotinic...
2.7K
01:22Direct-Acting Cholinergic Agonists: Chemistry and Structure-Activity Relationship
2.0K
Cholinergic agonists or cholinomimetics mimic the action of acetylcholine to stimulate the parasympathetic nervous system. They are categorized into direct-acting and indirect-acting agents. The direct-acting cholinergic drugs induce the parasympathetic response by directly binding to the muscarinic or nicotine receptors. In comparison, the indirect-acting cholinergic drugs prevent acetylcholine hydrolysis, indirectly contributing to the extended parasympathetic response.
The direct-acting...
The direct-acting...
2.0K
01:18Indirect-Acting Cholinergic Agonists: Mechanism of Action
2.5K
Indirect-acting cholinergic agonists work by interacting with an enzyme called acetylcholinesterase (AChE) in the synaptic cleft. They can be reversible or irreversible inhibitors and have different effects on the enzyme.
Reversible inhibitors like edrophonium bind to a specific part of the enzyme called the anionic catalytic site. They form noncovalent bonds, which means they are not strongly attached to the enzyme. This creates a temporary and less stable enzyme–inhibitor complex,...
Reversible inhibitors like edrophonium bind to a specific part of the enzyme called the anionic catalytic site. They form noncovalent bonds, which means they are not strongly attached to the enzyme. This creates a temporary and less stable enzyme–inhibitor complex,...
2.5K
01:31Direct-Acting Cholinergic Agonists: Pharmacokinetics
1.8K
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...
1.8K
01:11Direct-Acting Cholinergic Agonists: Therapeutic Uses
1.6K
Direct-acting cholinergic agonists have many therapeutic uses in various medical fields. Choline esters, including acetylcholine, have limited clinical utility due to their non-selectivity and short duration of action. Still, acetylcholine and carbachol are applied topically during ophthalmologic surgery to induce miosis. Pilocarpine, a muscarinic and ganglionic stimulator, effectively treats open-angle glaucoma and alleviates xerostomia and dry mouth caused by radiotherapy or Sjögren...
1.6K