在神经疾病中的腺基环酶2表达和功能
Marsilla Gray1, Kevin R Nash1, Yao Yao1
1Department of Molecular Pharmacology and Physiology, Morsani College of Medicine, University of South Florida, Tampa, Florida, USA.
CNS neuroscience & therapeutics
|July 29, 2024
概括
腺基环酶2 (Adcy2) 在中枢神经系统 (CNS) 中起着关键作用. 这篇评论强调了Adcy2的重点.
科学领域:
- 神经科学和分子生物学
- 酶功能和信号通路的作用
背景情况:
- 腺基环酶 (Adcys) 产生循环AMP (cAMP),这是中枢神经系统 (CNS) 中的一个关键的二次信使.
- Adcy2是十种Adcy异型之一,在中枢神经系统表达特别高.
- 异常的Adcy2表达和突变与各种神经系统疾病有关,但功能丧失研究由于缺乏遗传工具而受到限制.
研究的目的:
- 审查最近关于神经疾病中Adcy2的表达和功能的发现.
- 巩固当前关于Adcy2在神经退行性,精神病和其他神经疾病中的作用的知识.
- 确定研究缺口和Adcy2研究的未来方向.
主要方法:
- 文献综述综合了关于Adcy的现有研究2.
- 在人类患者和动物模型中分析Adcy2表达和关联.
- 讨论当前研究的局限性和未来的研究问题.
主要成果:
- Adcy2与神经退行性疾病 (例如阿尔茨海默氏症,帕金森病) 有着显著的关联.
- Adcy2失调与精神疾病有关 (例如,图雷特综合征,精神分裂症,双相情感障碍).
- 该评论详细介绍了Adcy2在与压力相关的疾病,中风,和莱什-尼汉综合征中的参与.
结论:
- Adcy2是中枢神经系统功能中的关键酶,其失调有助于各种神经疾病.
- 进一步的研究,特别是利用遗传工具进行功能丧失研究,对于充分阐明Adcy2的作用至关重要.
- 本综述提供了一个全面的概述,以指导未来对神经疾病中的Adcy2的研究.
相关概念视频
01:37Neural Regulation
39.2K
Digestion begins with a cephalic phase that prepares the digestive system to receive food. When our brain processes visual or olfactory information about food, it triggers impulses in the cranial nerves innervating the salivary glands and stomach to prepare for food.
39.2K
01:09GPCRs Regulate Adenylyl Cylase Activity
5.4K
Some GPCRs transmit signals through adenylyl cyclase (AC), a transmembrane enzyme. AC helps synthesize second messenger cyclic adenosine monophosphate (cAMP). AC catalyzes cyclization reaction and converts ATP to cAMP by releasing a pyrophosphate. The pyrophosphate is further hydrolyzed to phosphate by the enzyme pyrophosphatase, which drives cAMP synthesis to completion. However, cAMP is rapidly degraded to 5′ AMP by the enzymes phosphodiesterase (PDE), preventing overstimulation of...
5.4K
01:29Drugs Affecting Neurotransmitter Synthesis
1.3K
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,...
1.3K
01:16Calmodulin-dependent Signaling
5.1K
Calmodulin (CaM) is a calcium-binding protein in eukaryotes that controls various calcium-regulated cellular processes. It has four calcium-binding sites that bind calcium to form the calcium-calmodulin ( Ca2+-CaM) complex. GPCR stimulation increases the calcium levels in the cells that bind to CaM and induces a conformational change.
The Ca2+-CaM complex does not have enzymatic activity by itself. Instead, the complex binds downstream target proteins, including membrane proteins or enzymes,...
The Ca2+-CaM complex does not have enzymatic activity by itself. Instead, the complex binds downstream target proteins, including membrane proteins or enzymes,...
5.1K
01:27Transducer Mechanism: Enzyme-Linked Receptors
2.4K
Enzyme-linked receptors are cell-surface receptors acting as an enzyme or associating with an enzyme intracellularly. They make excellent drug targets. Drugs can bind to the extracellular ligand-binding domain or directly affect their enzymatic domain and alter their activity.
Major types that are helpful drug targets include:
Major types that are helpful drug targets include:
2.4K
01:27Adrenergic Neurons: Neurotransmission
3.5K
Postganglionic sympathetic fibers (except those supplying the sweat glands) releasing noradrenaline or norepinephrine are called noradrenergic or adrenergic neurons. Noradrenaline, dopamine, adrenaline, or epinephrine are collectively called "catecholamines" as they contain a catechol moiety and an amine side chain. The five stages of neurotransmitter release involve their synthesis, storage, release, reuptake and metabolism.
Synthesis: Catecholamine synthesis requires tyrosine, which...
Synthesis: Catecholamine synthesis requires tyrosine, which...
3.5K