首都医科大学学报 ›› 2009, Vol. 30 ›› Issue (5): 580-583.doi: 10.3969/j.issn.1006-7795.2009.05.002

• PD的发病机制与早期诊断 • 上一篇    下一篇

小鼠纹状体中神经递质相关基因表达的节律性波动

丁晖1, 蔡彦宁1, 王玲玲2, 柴玉鑫1, 张燕莉1, 陈彪1   

  1. 1. 首都医科大学宣武医院神经生物学研究室,神经变性病学教育部重点实验室;2. 山东省即墨市人民医院神经内科
  • 收稿日期:2009-07-16 修回日期:1900-01-01 出版日期:2009-10-21 发布日期:2009-10-21
  • 通讯作者: 蔡彦宁

Rhythmic Oscillation of Neurotransmitter-related Genes Expression in the Mouse Striatum

DING Hui1, CAI Yan-ning1, WANG Ling-ling2, CHAI Yu-xin1, ZHANG Yan-li1, CHEN Biao1   

  1. 1. Department of Neurology and Neurobiology, Xuanwu Hospital, Capital Medical University; Key Laboratory of Neurodegenerative Diseases, Ministry of Education;2. Department of Neurology, Jimo People's Hospital, Shandong Province
  • Received:2009-07-16 Revised:1900-01-01 Online:2009-10-21 Published:2009-10-21

摘要: 目的 探讨纹状体神经肽强啡肽(dynorphin,DYN)、脑啡肽1(enkephalin 1,ENK1)、P物质(substance P,SP)、胆囊收缩素(cholecystokinin,CCK)和多巴胺受体1和2(dopamine receptor 1 and 2,D1r和D2r)是否受分子时钟机制的调控,它们的节律变化是否与时钟基因有关。方法 分别对刚出生(产后3 d)、断奶前(产后14 d)和成年(产后60 d)小鼠纹状体中上述基因24小时的mRNA用实时定量RT-PCR的检测方法观察其节律变化。结果 产后3 d小鼠纹状体内没有观察到相关基因的节律性变化;产后14 d时,纹状体内D2r、DYN和ENK1基因随时间呈现节律变化,出生后60 d时,纹状体内除D1r外,所有基因表达均随时间昼夜波动。结论 小鼠纹状体中神经递质相关基因的昼夜表达变化规律是在出生后逐渐形成的。

关键词: 纹状体, 神经肽, 昼夜节律, 基因表达

Abstract: Objective The aims of this study were to determine whether striatal neuropeptides(dynorphin(DYN), enkephalin 1(ENK1), substance P(SP), cholecystokinin(CCK)) and dopamine receptor 1 and 2(D1r and D2r) are regulated by the molecular clock; whether their rhythmic changes depend on the matural molecular clock. Methods Twenty-four hour mRNA oscillations of these genes were evaluated in the mouse striatum at early postnatal(postnatal day 3), pre-weaning(postnatal day 14), and adult(postnatal day 60) stages. At P3, no daily oscillations were observed. Results A significant time effect was present for D2r, DYN, and ENK1 at P14, and for all genes except D1r, at P60. Conclusion Circadian expression of these neurotransmitter-related genes develops in the mouse striatum gradually.

Key words: striatum, neuropeptide, circadian rhythm, gene expression

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