微RNA-335-5p抑制电压通道表达,可能是控制的目标
Mona Heiland1,2, Niamh M C Connolly1,2, Omar Mamad1,2
1Department of Physiology and Medical Physics, Royal College of Surgeons in Ireland, University of Medicine and Health Sciences, Dublin D02 YN77, Ireland.
概括
研究人员确定了microRNA-335-5p (miR-335-5p) 作为中电压导入通道的关键调节器. 调节miR-335-5p通过控制神经元刺激性,为治疗耐药性提供了一个潜在的治疗策略.
科学领域:
- 神经科学是一个神经科学.
- 分子生物学分子生物学
- 遗传学 遗传学 是一个
背景情况:
- 的治疗耐药性需要新的治疗目标.
- 电压通道 (VGSCs) 对神经元刺激性至关重要,但它们的失调有助于.
- 微RNAs (miRNAs) 是小型非编码RNAs,它们调节基因表达,并与神经系统疾病有关.
研究的目的:
- 为了确定涉及治疗耐药性的微RNA.
- 研究微RNA-335-5p (miR-335-5p) 在调节VGSC和神经元刺激性方面的作用.
- 探索miR-335-5p作为的潜在治疗标.
主要方法:
- 在模型和患者样本中进行全基因组miRNA查.
- 对miR-335-5p目标的生物信息预测和实验验证.
- 在小鼠体内使用反感性寡核酸和病毒载体的体内研究.
- 在人体神经元中体外电生理学和基因表达分析.
主要成果:
- 在多种模型中,miR-335-5p被确定为一个融合的标.
- 证明miR-335-5p可以负面调节关键VGSC基因 (SCN1A,SCN2A,SCN3A) 的表达.
- 抑制miR-335-5p增加了神经元刺激性和发作易感性,而其过度表达减少了发作的严重程度.
结论:
- 调节miR-335-5p提供了一种新的方法来调节VGSC和神经元刺激性.
- miR-335-5p代表了治疗耐药性的有前途的治疗标.
- 在miR-335-5p的变化可以作为子类型的生物标志物.
相关概念视频
01:20Antiepileptic Drugs: Modulators of Neurotransmitter Release Mediated by SV2A Protein
349
Antiepileptic drugs, such as levetiracetam (Keppra) and brivaracetam (Briviact), have emerged as crucial tools in managing epilepsy. These medications exert their therapeutic effects by targeting the synaptic vesicle protein SV2A, a transmembrane glycoprotein primarily found in the brain.
SV2A is a transmembrane glycoprotein located predominantly in the brain, modulating the release of neurotransmitters for neuronal communication. Both levetiracetam and brivaracetam exhibit a high affinity for...
SV2A is a transmembrane glycoprotein located predominantly in the brain, modulating the release of neurotransmitters for neuronal communication. Both levetiracetam and brivaracetam exhibit a high affinity for...
349
01:26Voltage-gated Ion Channels
8.3K
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...
8.3K
01:08Antiepileptic Drugs: Sodium Channel Blockers
682
Antiepileptic drugs are specialized medications that prevent seizures in individuals diagnosed with epilepsy. These drugs primarily function by blocking the movement of sodium ions through channels in the neuronal membrane, inhibiting the repetitive firing of action potentials often associated with seizures.
Sodium channel blockers modulate ion channels, particularly voltage-gated sodium channels. They block only sodium ion movement.
Among the most commonly prescribed antiepileptic drugs are...
Sodium channel blockers modulate ion channels, particularly voltage-gated sodium channels. They block only sodium ion movement.
Among the most commonly prescribed antiepileptic drugs are...
682
01:20Antiepileptic Drugs: Potassium Channel Activators
215
Ezocgabine or retigabine, an antiepileptic drug of remarkable efficacy, has revolutionized the management of seizures. It is a potassium channel activator, explicitly targeting the family of Q subtype potassium channels. It enhances the transmembrane potassium currents, regulating neuronal excitability. This action stabilizes the resting membrane potential, a pivotal factor in mitigating the hyperexcitability that characterizes epilepsy.
Ezogabine has gained approval as an adjunctive treatment...
Ezogabine has gained approval as an adjunctive treatment...
215
01:30Ligand-Gated Ion Channel Receptor: Gating Mechanism
2.3K
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...
2.3K
01:18Antiepileptic Drugs: GABAergic Pathway Potentiators
467
γ-aminobutyric acid or GABA, plays a pivotal role as an inhibitory neurotransmitter in the brain. GABA pathway potentiators, also known as GABAergic drugs, are a class of pharmaceutical agents designed to enhance the functioning of the GABAergic system. These medications primarily treat epilepsy, a neurological disorder characterized by recurrent seizures.
The key GABA pathway potentiators used in epilepsy management are as follows.
Benzodiazepines are a well-known class of drugs used for...
The key GABA pathway potentiators used in epilepsy management are as follows.
Benzodiazepines are a well-known class of drugs used for...
467