响应BDNF和VEGF刺激的NGF模仿周期性,具有铜离子孔能力和Ctr1/CCS驱动的信号传输
Barbara Tomasello1, Francesco Bellia2, Irina Naletova2
1Department of Drug and Health Sciences, University of Catania, V.le Andrea Doria 6, Catania 95125, Italy.
ACS chemical neuroscience
|April 11, 2024
概括
一种新型的循环,c-NGF(1-14),通过与TrkA受体相互作用,模仿神经营养生长因子 (NGF) 的活性. 铜 (Cu2+) 增强其生物效应,促进细胞分化和生长因子的释放.
科学领域:
- 神经科学是一个神经科学.
- 生物化学 生物化学
- 类化学 类化学
背景情况:
- 神经营养素,如神经生长因子 (NGF),对于神经系统发育至关重要,但由于稳定性差和副作用,在治疗中面临挑战.
- 开发稳定仿真神经是一种克服这些局限性的关键策略,并探索新的治疗途径.
研究的目的:
- 描述一个14个成员的循环,c-NGF(1-14),旨在模仿NGF的N端.
- 调查的结构性质,它与铜离子 (Cu2+) 的相互作用,以及它在PC12细胞中的生物活性.
主要方法:
- 光谱表征 (远紫外CD),计算研究,电位计和光谱测量用于复杂的表征.
- 在PC12细胞上进行基于细胞的测试,以评估离子体活性,TrkA受体相互作用和下游信号通路 (Erk1/2,CREB).
- ICP-OES用于量化铜离子度及其对活性的影响.
主要成果:
- c-NGF(1-14) 采用了刚性,聚烯II形状,有利于与TrkA受体相互作用.
- 该酸以高亲和力结合Cu2+,形成复合物,增强其离子体活性并影响铜运输体 (Ctr1,CCS).
- c-NGF(1-14) 诱导PC12细胞分化,TrkA酸化,Erk1/2激活和CREB激活,导致BDNF和VEGF释放,Cu2+显著增强这些效应.
结论:
- 循环c-NGF(1-14) 有效地模仿NGF的生物功能,包括TrkA激活和下游信号.
- 铜离子增强了的活性,这表明了潜在的协同治疗方法.
- c-NGF(1-14) 代表了一种有前途的稳定基治疗剂,用于神经学应用.
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