皮原蛋白作为神经调节性抗氧化剂:生化特征和与NMDA受体的分子相互作用
Rozirwan1, Yoga Winarta2, Isnaini1
1Department of Marine Science, Faculty of Mathematics and Natural Sciences, Universitas Sriwijaya, Indralaya 30862, South Sumatra, Indonesia.
Archives of biochemistry and biophysics
|February 11, 2026
概括
来自热带皮动物的海洋原蛋白显示出强大的抗氧化和神经调节潜力. 这种可持续的生物材料为神经退行性疾病的药物发现提供了希望,特别是通过与NMDA受体的相互作用.
科学领域:
- 海洋生物技术 海洋生物技术
- 神经药理学神经药理学
- 生物化学 生物化学
背景情况:
- 海洋原蛋白是一种可持续的生物材料,但其在神经药理学中的潜力尚未得到充分探索.
- 热带皮动物代表了一种新的海洋原蛋白来源,具有潜在的治疗应用.
研究的目的:
- 研究来自三个热带皮物种的原蛋白的生物化学特性,抗氧化活性和神经调节潜力.
- 探索皮原蛋白在神经退行性疾病研究中的潜力.
主要方法:
- 从Holothuria atra,Acanthaster planci和Culcita novaeguineae中分离的原蛋白.
- 使用LC-MS,FTIR和13C NMR进行生物化学表征.
- 在的分子对接分析与NMDA受体 (PDB ID: 4PE5).
主要成果:
- 隔离的原体显示出强大的抗氧化活性 (IC50值在4.43至21.78μg/mL之间).
- 结构分析证实了主要的氨基酸 (谷氨酸,氨酸,氨酸,甘氨酸,氨酸),表明了原的稳定性.
- 分子对接揭示了谷氨酸与NMDA受体GluN1a/GluN2B (ΔG = -5.25 kcal/mol) 的良好的结合亲和力.
结论:
- 热带皮原蛋白具有显著的抗氧化和神经调节性质.
- 这种来自海洋的原蛋白显示为神经退行性疾病药物发现的可持续生物材料的前景.
- 这项研究强调了一种涉及NMDA受体相互作用的潜在机制,用于皮原蛋白的神经调节作用.
相关概念视频
Cognitive Enhancers: Cholinesterase Inhibitors and NMDA Receptor Antagonists
661
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.
661
Drug-Receptor Interactions
7.6K
Drug-receptor interaction describes the binding of receptors by drugs, but not all drug-receptor interactions result in activation and tissue response. For instance, the binding of agonists activates the receptor to generate a cellular reaction, while antagonists bind to receptors without causing their activation.
Several parameters, such as the drug's affinity for its receptor and its efficacy, which is its ability to activate the receptor, determine the drug's effect on the tissue....
Several parameters, such as the drug's affinity for its receptor and its efficacy, which is its ability to activate the receptor, determine the drug's effect on the tissue....
7.6K
Drug-Receptor Interaction: Antagonist
5.1K
An antagonist is a drug that binds strongly to a receptor without activating it. An antagonist prevents other molecules, such as neurotransmitters or hormones, from binding to the receptor and triggering a cellular response. Such interaction effectively hinders the normal physiological processes mediated by the receptor, resulting in various pharmacological effects depending on the specific receptor targeted.
Antagonists can be classified as competitive or noncompetitive based on their...
Antagonists can be classified as competitive or noncompetitive based on their...
5.1K
Drug-Receptor Interaction: Agonist
4.2K
Agonists are drugs that interact with specific receptors in the body to produce a biological response. When an agonist binds to a receptor, it activates or enhances the receptor's function, leading to physiological effects. The interaction between agonist drugs and receptors is crucial for their therapeutic action in various medical treatments.
Agonists can bind to receptors in different ways. Some agonists bind directly to the receptor's active site, mimicking the endogenous...
Agonists can bind to receptors in different ways. Some agonists bind directly to the receptor's active site, mimicking the endogenous...
4.2K
Quantitative Aspects of Drug-Receptor Interaction
1.8K
The receptor occupancy theory connects a drug's response to the number of occupied receptors. With higher drug concentrations, more receptors are occupied, leading to increased responses. The formation of drug-receptor complexes involves association and dissociation rates, which reach equilibrium when the forward and backward reactions are equal. The equilibrium association constant (Ka) and its inverse, the equilibrium dissociation constant (Kd), indicate drug affinity. Higher Ka and lower...
1.8K
Molecular and Ionic Solids
20.3K
Crystalline solids are divided into four types: molecular, ionic, metallic, and covalent network based on the type of constituent units and their interparticle interactions.
Molecular Solids
Molecular crystalline solids, such as ice, sucrose (table sugar), and iodine, are solids that are composed of neutral molecules as their constituent units. These molecules are held together by weak intermolecular forces such as London dispersion forces, dipole-dipole interactions, or hydrogen bonds, which...
Molecular Solids
Molecular crystalline solids, such as ice, sucrose (table sugar), and iodine, are solids that are composed of neutral molecules as their constituent units. These molecules are held together by weak intermolecular forces such as London dispersion forces, dipole-dipole interactions, or hydrogen bonds, which...
20.3K


