在小鼠中,HnRNPK通过ERK-BDNF通路参与了压力诱导的类似抑郁的行为
Lv-Ping Zhuang1, Wei-Jie Gao1, Liu-Lv Fang1
1Department of Neurology, Fujian Medical University Union Hospital, Fujian Key Laboratory of Molecular Neurology and Institute of Neuroscience, Fujian Medical University; Fuzhou, China.
Neurochemistry international
|August 5, 2023
概括
在抑郁症中,异质核核核糖核蛋白K (hnRNPK) 的下调. 恢复hNRNPK水平可以通过调节ERK-BDNF通路来治疗严重抑郁症 (MDD).
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 是一个遗传学.
背景情况:
- 异质核核核糖核蛋白K (hnRNPK) 是一种参与细胞功能的RNA结合蛋白.
- hnRNPK通过细胞外信号调节激酶 (ERK) - 脑衍生神经营养因子 (BDNF) 途径调节树突脊柱密度,这对于主要抑郁症 (MDD) 的突触可塑性至关重要.
- 通过ERK通路对ERK的上游调节和hNRNPK在抑郁症中的作用仍然不清楚.
研究的目的:
- 为了研究hnrnpk在抑郁症的发病过程中的作用.
- 探索 hnRNPK 在 MDD 中 ERK-BDNF 途径的潜在参与.
- 确定hnRNPK作为MDD的潜在治疗标.
主要方法:
- 遗传学,分子生物学和行为测试被整合在一起.
- 在小鼠和MDD患者 (GEO数据库) 的海马神经元中分析了 hnRNPK 表达.
- 在体内和体外分析中,研究了hNRNPK,BDNF,PSD95和ERK酸化之间的关系.
主要成果:
- hnRNPK主要在海马神经元中发现,并且在患有抑郁症类行为和MDD患者的小鼠中下调.
- 在BDNF,PSD95和ERK化中的变化与腹部海马神经元中的hNRNPK水平相关.
- 素治疗增加了小鼠的hNRNPK水平.
结论:
- hnRNPK通过ERK-BDNF通路参与抑郁症的发病.
- hnRNPK水平在抑郁症中降低,并通过胺恢复.
- hnRNPK代表了MDD的潜在治疗标.
相关概念视频
G-protein Coupled Receptors
G-protein coupled receptors are ligand binding receptors that indirectly affect changes in the cell. The actual receptor is a single polypeptide that transverses the cell membrane seven times creating intracellular and extracellular loops. The extracellular loops create a ligand specific pocket which binds to neurotransmitters or hormones. The intracellular loops holds onto the G-protein.
Enzyme-linked Receptors
Enzyme-linked receptors are proteins that act as both receptor and enzyme, activating multiple intracellular signals. This is a large group of receptors that include the receptor tyrosine kinase (RTK) family. Many growth factors and hormones bind to and activate the RTKs.
Neurotrophin (NT) receptors are a family of RTKs, including trkA, trkB, and trkC (tropomyosin-related kinase) receptors. TrkA is specific for nerve growth factor (NGF), neurotrophin-6, and neurotrophin-7. TrkB binds...
Neurotrophin (NT) receptors are a family of RTKs, including trkA, trkB, and trkC (tropomyosin-related kinase) receptors. TrkA is specific for nerve growth factor (NGF), neurotrophin-6, and neurotrophin-7. TrkB binds...


