在神经退行性疾病中,模拟化剂替代剂效应作为治疗点
Cooper J Kimbrough1, Thomas R Cundari1
1Department of Chemistry and CASCaM, University of North Texas, Denton, Texas 76203, United States.
ACS omega
|September 22, 2025
概括
化疗对阿尔茨海默氏症等神经退行性疾病具有前景,通过向金属离子来治疗. 通过电子因素优化的希夫基化剂,在治疗性金属结合方面表现出增强的选择性.
科学领域:
- 神经科学是一个神经科学.
- 计算化学的计算化学
- 药理学 药理学是指药理学的学科.
背景情况:
- 神经退行性疾病,包括阿尔茨海默病 (AD),与中枢神经系统 (CNS) 中的氧化还原活性生物金属有关.
- 这些生物金属产生反应性氧物种 (ROS) 并促进粉样β (Aβ) 聚合,驱动疾病病理.
- 化治疗通过向这些金属离子提供了一种潜在的疾病修饰方法.
研究的目的:
- 研究四牙希夫基衍生物作为神经退行性疾病治疗的潜在化剂.
- 探索影响治疗疗效的物理化学性质,特别是金属合物选择性.
- 确定设计修改,以提高治疗标的结合亲和力和选择性.
主要方法:
- 密度功能理论 (DFT) 研究被用来分析化剂候选物.
- 评估了物理化学特性,包括Cu (II) 与Zn (II) 的结合亲和力和选择性.
- 通过对 Schiff 基 analog 的系统设计修改,研究了结构-活动关系.
主要成果:
- 发现电子因素在决定化剂性能方面比硬质效应更有影响力.
- 观察到Cu (II) / Zn (II) 对环替代剂效应的选择性显著敏感.
- 通过互补的电子配对来实现最佳选择性,利用环上的电子捐赠群和环上的电子吸收群.
结论:
- 希夫基衍生物显示出作为神经退行性疾病的疾病修饰疗法的潜力.
- 化器结构的电子调制对于实现高治疗选择性至关重要.
- 这项研究为设计有针对性的化剂以对抗金属诱导的神经退行提供了基础.
更多相关视频
06:52Fabrication of Amyloid-β-Secreting Alginate Microbeads for Use in Modelling Alzheimer's Disease
Published on: July 6, 2019
9.7K
06:41Quantitative Analysis of Mitochondria-Associated Endoplasmic Reticulum Membrane (MAM) Stabilization in a Neural Model of Alzheimer's Disease (AD)
Published on: January 10, 2025
1.2K
相关概念视频
01:22Alzheimer's Disease: Treatment
825
Alzheimer's Disease (AD), a neurodegenerative disorder, is pathologically identified by amyloid plaques and neurofibrillary tangles composed of tau protein. AD pharmacotherapy aims to manage cognitive symptoms, delay disease progression, and treat behavioral symptoms. The treatment is primarily symptomatic and palliative, with no definitive disease-modifying therapy available. Cholinesterase inhibitors, including donepezil (Aricept), rivastigmine (Exelon), and galantamine (Razadyne), are...
825
01:30Ligand-Gated Ion Channel Receptor: Gating Mechanism
3.8K
Ligand-gated ion channels are transmembrane proteins that play a vital role in intercellular communication and functions of the nervous system. They allow the influx of ions across the membrane once the neurotransmitter binds, allowing the subsequent transmission of electrical excitation across the neurons. Other ligand-gated ion channels, like the γ-aminobutyric acid (GABA) receptor, permit anions like chloride into the cells on the binding of the GABA molecule. Their entry into the cell...
3.8K
01:30Cognitive Enhancers: Cholinesterase Inhibitors and NMDA Receptor Antagonists
560
Cognitive enhancers, also known as "smart drugs," are substances used to enhance memory, mental alertness, and concentration. These can be natural or synthetic and improve cognition in conditions like Alzheimer's disease (AD) and other neurodegenerative diseases. Some common examples include caffeine, amphetamines, methylphenidate, modafinil, arecoline, donepezil, vortioxetine, and piracetam. These enhancers work on the principle of synaptic plasticity and altered circuit function.
560
01:29Drugs Affecting Neurotransmitter Synthesis
2.1K
Drugs affecting neurotransmitter synthesis can impact the adrenergic neuron and the synthesis of neurotransmitters. For example, α-methyltyrosine and carbidopa target specific enzymes involved in catecholamine synthesis. α-methyltyrosine inhibits the enzyme tyrosine hydroxylase, which converts tyrosine into dopamine. By blocking this enzyme, α-methyltyrosine reduces dopamine production and other catecholamines. Carbidopa, on the other hand, inhibits the enzyme dopa decarboxylase,...
2.1K
01:19Ligand-gated Ion Channels
14.0K
Ligand-gated ion channels are transmembrane proteins with a channel for ions to pass through and a binding site for a ligand. The channel opens only when a ligand attaches to the binding site.
Three Subfamilies of Ligand-gated Ion Channels
Ligand-gated ion channels fall into three subfamilies. The 'Cys-loop' includes the nicotinic acetylcholine receptors, γ-aminobutyric acid (GABA), glycine, and 5-hydroxytryptamine receptors. The second one is the 'Pore-loop' channels that...
Three Subfamilies of Ligand-gated Ion Channels
Ligand-gated ion channels fall into three subfamilies. The 'Cys-loop' includes the nicotinic acetylcholine receptors, γ-aminobutyric acid (GABA), glycine, and 5-hydroxytryptamine receptors. The second one is the 'Pore-loop' channels that...
14.0K
01:29Indirect-Acting Cholinergic Agonists: Chemistry and Structure-Activity Relationship
921
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...
921