调节Ca2+恒温的毒:神经保护的潜在潜力
Jessica A I Muller1, Lachlan A Bourke2, Sam I D Campbell2
1Institute for Molecular Bioscience, The University of Queensland, St. Lucia, Queensland, 4072, Australia.
Trends in pharmacological sciences
|April 16, 2025
概括
调节细胞内的毒对治疗与不平衡相关的疾病有前途. 酸科学的进步可能会导致神经退行性疾病等疾病的新疗法.
科学领域:
- 药理学 药理学是指药理学的学科.
- 生物化学 生化学
- 药物发现 药物发现 药物发现
背景情况:
- 异常的细胞内 ([Ca2+]i) 恒温与各种疾病有关.
- 毒素具有独特的药理特性,可以调节[Ca2+]i信号传递.
研究的目的:
- 探索针对[Ca2+]i的毒性的药理学.
- 为了突出最近在基于毒素的药物发现方面取得的进展.
- 预测这些的治疗潜力对于难以治愈的疾病.
主要方法:
- 关于毒素和信号传递的现有文献的综述.
- 分析最近在类优化和疾病建模方面的突破.
- 功能性生物测试的评估,以评估的疗效.
主要成果:
- 毒素为[Ca2+]i信号传递提供了丰富的调节剂来源.
- 体工程和生物测试方面的进步正在加速药物发现.
- 用毒素来准功能障碍的[Ca2+]i信号显示出治疗潜力.
结论:
- 调节[Ca2+]i信号的毒是一种有希望的治疗途径.
- 未来的研究可能会为因失调而导致的疾病提供新的治疗方法.
- 预计在针对神经退行性疾病的药物开发领域将迎来一个变革性的时代.
相关概念视频
01:27Feedback Regulation of Calcium Concentration
3.3K
Calcium is an essential signaling molecule required for various cellular functions. Calcium pumps and ion channels on cell and organellar membranes, such as those on the endoplasmic reticulum (ER), regulate calcium concentrations inside the cell. They remain closed, keeping the cytosolic calcium levels low at a resting state.
Various transmembrane receptors, such as G protein-coupled receptors (GPCRs), elicit a response to extracellular signals by increasing cytosolic calcium. Activated GPCRs...
Various transmembrane receptors, such as G protein-coupled receptors (GPCRs), elicit a response to extracellular signals by increasing cytosolic calcium. Activated GPCRs...
3.3K
01:16Calmodulin-dependent Signaling
4.9K
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,...
4.9K
01:21Skeleton and Calcium Homeostasis
4.2K
Calcium is not only the most abundant mineral in bone but also the most abundant mineral in the human body. Calcium ions are needed for bone mineralization, tooth health, heart rate regulation and strength of contraction, blood coagulation, the contraction of smooth and skeletal muscle cells, and the regulation of nerve impulse conduction. The average calcium level in the blood is about 10 mg/dL. When the body cannot maintain this level, a person will experience hypo or hypercalcemia.
4.2K
01:33Overview of Secretory Vesicles
7.2K
Secretory vesicles, also known as dense core vesicles (DCVs), are membrane-bound vesicles that transport secretory proteins, such as hormones or neurotransmitters. Regulated secretory vesicles transport proteins from the trans-Golgi network to the exterior of the cell. Proteins present in regulated secretory vesicles are required to be rapidly exocytosed in large amounts upon a specific stimulus.
Various proteins regulate the aggregation of molecules inside the secretory vesicles. Chromogranins...
Various proteins regulate the aggregation of molecules inside the secretory vesicles. Chromogranins...
7.2K
01:27Roles of Electrolytes: Calcium and Phosphate
100
Calcium and phosphate are essential electrolytes in the human body, with calcium being the most abundant mineral. Around 99% of the body's calcium is stored in the skeleton and teeth, forming a crystal lattice of mineral salts in combination with phosphates. Calcium plays crucial roles in various bodily functions such as blood clotting, neurotransmitter release, muscle tone maintenance, and nervous and muscle tissue excitability.
The calcium concentration in blood plasma is primarily...
The calcium concentration in blood plasma is primarily...
100
01:26Voltage-gated Ion Channels
7.8K
Voltage-gated ion channels are transmembrane proteins that open and close in response to changes in the membrane potential. They are present on the membranes of all electrically excitable cells such as neurons, heart, and muscle cells.
Generally, all voltage-gated ion channels have a 'voltage-sensing domain' that spans the lipid bilayer. The charged residues in the sensor move in response to the membrane potential changes that open the channel allowing ions movement. There are several...
Generally, all voltage-gated ion channels have a 'voltage-sensing domain' that spans the lipid bilayer. The charged residues in the sensor move in response to the membrane potential changes that open the channel allowing ions movement. There are several...
7.8K