法医学杂志 ›› 2010, Vol. 26 ›› Issue (5): 321-324.DOI: 10.3969/j.issn.1004-5619.2010.05.001

• 论著 •    下一篇

海洛因对神经元原癌基因c-fos表达的抑制作用

卢佩彦1,李泽鸿1,郭  勇1,竞花兰1,林文盈2,刘小山1   

  1. (1. 中山大学 中山医学院法医学系,广东 广州 510080; 2. 阳江市公安局 刑事科学技术研究所,广东 阳江 529500)
  • 发布日期:2010-10-25 出版日期:2010-10-28
  • 通讯作者: 通信作者:刘小山,男,博士,主任法医师,硕士研究生导师,主要从事法医病理学研究;E-mail:liuxsh@mail.sysu.edu.cn
  • 作者简介:卢佩彦(1982—),男,安徽蚌埠人,硕士研究生,主要从事法医病理学研究;E-mail:lupeiyan_2001@tom.com
  • 基金资助:

    国家自然科学基金资助项目(30860318)

The Suppression of c-fos in Neuron Apoptosis Induced by Heroin

LU PEI-YAN1, LI ZE-HONG1, GUO YONG1, JING HUA-LAN1, LIN WEN-YING2, LIU XIAO-SHAN1   

  1. (1. Department of Forensic Medicine, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou 510080, China; 2. Institute of Criminal Science and Technology,Yangjiang Public Security Bureau, Yangjiang 529500, China)
  • Online:2010-10-25 Published:2010-10-28

摘要: 目的 观察海洛因对SD乳鼠小脑颗粒神经元c-fos蛋白表达的影响,探讨海洛因对神经元的损伤机制。 方法 体外培养原代小脑颗粒神经元并建立海洛因促神经元凋亡模型,用逆转录聚合酶链反应(reverse transcription-polymerase chain reaction,RT-PCR)和Western印迹法技术,检测小脑颗粒神经元凋亡时c-fos的表达变化。 结果 海洛因质量浓度为10 μg/mL时小脑颗粒神经元于48 h即出现明显凋亡,RT-PCR和Western印迹法均提示原癌基因c-fos在神经元凋亡时表达明显下调。 结论 海洛因通过抑制原癌基因c-fos的表达来诱导小脑颗粒神经元的凋亡,提示c-fos的表达下调可能是海洛因促使神经元凋亡的机制之一。

关键词: 法医病理学, 海洛因, 神经元, 基因, fos, 大鼠

Abstract: Objective To explore the changes of c-fos in apoptosis of cerebellar granular neuron of neonatal SD rats induced by heroin and the mechanisms of neuronal injury caused by heroin. Methods Primary cerebellar granular neuron were cultured in vitro, the model of apoptosis induced by heroin was established. Reverse transcription-polymerase chain reaction(RT-PCR) and Western blotting were adopted to investigate the changes of c-fos in cell models. Results Ten μg/mL of heroin was the optimal dose to induce the apoptosis of cerebellar granular neuron at 48 h. Both Western blotting and RT-PCR showed down regulation of c-fos expression. Conclusion Heroin could induce apoptosis of cerebellar granular neuron and down regulation of c-fos, which may be one of the apoptosis mechanisms.

Key words: forensic pathology, heroin, neurons, genes, fos, rats

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