CDNF表现出焦虑缓解,抗抑郁类和认知效应,并调节血清素周转率和与神经可塑性相关的基因
Anton Tsybko1, Dmitry Eremin1, Tatiana Ilchibaeva1
1The Federal Research Center, Institute of Cytology and Genetics, Siberian Branch of the Russian Academy of Sciences, Novosibirsk 630090, Russia.
International journal of molecular sciences
|October 16, 2024
概括
大脑多巴胺神经营养因子 (CDNF) 通过增加血清素 (5-HT) 循环和神经元激活来增强学习并减少焦虑. 这种神经营养因子还调节大脑中展开的蛋白质响应 (UPR) 途径.
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
- 行为科学 行为科学
背景情况:
- 大脑多巴胺神经营养因子 (CDNF) 是一种非常规的神经营养因子.
- CDNF主要作为内细胞网膜中的未折叠蛋白质响应 (UPR) 调节器起作用.
- 关于CDNF对非运动行为和单胺代谢的影响的数据有限.
研究的目的:
- 研究外源性CDNF对小鼠的非运动行为和单胺代谢的影响.
- 探索CDNF对学习,焦虑和行为绝望的影响.
- 检查CDNF对神经元激活和UPR通路的影响.
主要方法:
- 在C57BL/6小鼠中注射复合CDNF蛋白 (3,10,30μg) 的脑内内静脉注射.
- 评估行为参数,包括操作学习,焦虑和行为绝望.
- 对单胺代谢,受体mRNA水平和神经元激活标记物的分析 (c-Fos,p-CREB).
- 通过XBP1拼接对UPR通路激活的评估.
主要成果:
- CDNF治疗改善了操作者的学习表现,并减少了焦虑和行为绝望.
- 在多个大脑区域中,CDNF增强了血清素 (5-HT) 循环.
- 观察到c-Fos mRNA的增加,在某些地区,还观察到酸化c-Fos和CREB.
- 拼接XBP1的上调表明了UPR通路的调节.
结论:
- 外源性CDNF对学习和情绪行为产生积极影响.
- CDNF增强了5-HT的循环和神经元的激活.
- CDNF调节了UPR通路,这表明它在神经元恒温和功能中的作用.
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