作为潜在的胆酶抑制剂的化-硫酸混合物:设计,合成和分子建模模拟
Mohamed A Omar1, Riham A El-Shiekh2, Dina H Dawood1
1Chemistry of Natural & Microbial Products Department, Pharmaceutical & Drug Industries Research Institute, National Research Centre, Dokki, Giza, 12622, Egypt.
Future medicinal chemistry
|November 23, 2023
概括
合成和测试了新的化-硫酸盐混合体. 化合物5e显示出强烈的乙胆酶抑制,而5i则抑制了丁胆酶,这表明它可能是药物候选物.
科学领域:
- 药用化学 医学化学
- 有机合成 有机合成
- 酶抑制可以抑制酶.
背景情况:
- 阿尔茨海默病的特点是胆固醇神经递质的下降.
- 乙胆酶 (AChE) 和丁胆酶 (BChE) 是参与乙胆分解的关键酶.
- 开发用于ACHE和BCHE的新型抑制剂对于阿尔茨海默病的治疗方法至关重要.
研究的目的:
- 设计和合成一系列新的酸-硫酸盐混合物.
- 评估这些混合物对ACHE和BCHE的抑制潜力.
- 探索这些化合物的结构-活性关系.
主要方法:
- 化-硫酸盐混合物 (5a-r化合物) 的合成.
- 在体外酶抑制测定中使用ACHE和BCHE.
- 毒理学生物测试和分子对接研究.
主要成果:
- 化合物5e表现出AChE的强烈抑制 (IC50 = 9.30 μM).
- 化合物5i显示出显著的BCHE抑制 (IC50=11.82μM).
- 分子对接证实了酶活性位点内的有利相互作用.
结论:
- 水硫酸盐混合物显示出作为潜在治疗剂的前景.
- 化合物5e和5i被确定为进一步开发的化合物.
- 这项研究为设计新型胆酶抑制剂提供了宝贵的见解.
相关概念视频
Indirect-Acting Cholinergic Agonists: Chemistry and Structure-Activity Relationship
583
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...
583
Indirect-Acting Cholinergic Agonists: Mechanism of Action
1.9K
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,...
1.9K
Direct-Acting Cholinergic Agonists: Chemistry and Structure-Activity Relationship
1.0K
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...
1.0K
Direct-Acting Cholinergic Agonists: Pharmacokinetics
1.2K
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...
1.2K
Cholinesterases: Distribution and Function
481
Cholinesterases are a group of serine hydrolase enzymes that play a crucial role in the breakdown of choline esters. The two primary types of cholinesterases are acetylcholinesterases (AChEs) and butyrylcholinesterase (BuChEs), which differ in their distribution, function, and substrate specificity. AChEs, also known as true cholinesterases, specifically hydrolyze acetylcholine, while BuChEs, often referred to as pseudocholinesterases, can hydrolyze various choline esters, including...
481
Anticholinesterase Agents: Poisoning and Treatment
884
Anticholinesterases, also known as cholinesterase inhibitors, work by blocking the breakdown of acetylcholine, leading to its accumulation in the synaptic cleft. This accumulation indirectly enhances both muscarinic and nicotinic actions. These agents are classified as reversible or irreversible based on their mechanism of action.
Irreversible agents form a strong bond with the cholinesterase enzyme, making it inactive. The breakdown of the phosphorylated enzyme is...
Irreversible agents form a strong bond with the cholinesterase enzyme, making it inactive. The breakdown of the phosphorylated enzyme is...
884


