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中国临床药理学与治疗学 ›› 2011, Vol. 16 ›› Issue (4): 380-384.

• 基础研究 • 上一篇    下一篇

环磷酰胺致SD大鼠胎仔脊髓神经细胞凋亡的研究

胡文娟1, 邓筱华1, 金辉1, 吴建辉2, 刘向云2, 孙祖越2   

  1. 1上海市浦东新区人民医院临床药学室,上海 201200;
    2上海市计划生育科学研究所药理毒理研究室,中国生育调节药物毒理检测中心,上海 200032
  • 收稿日期:2011-03-08 修回日期:2011-04-20 发布日期:2011-06-22
  • 通讯作者: 孙祖越,男,研究员,博士生导师,研究方向:生殖药理学。Tel: 021-64043044 E-mail: sunzy64@163.com
  • 作者简介:胡文娟,女,硕士研究生,临床药师,研究方向:生殖药理学。Tel: 15921837994 E-mail: huwenjuan2006@163.com

Spinal cord deformity effect of cyclophosphamide on fetal

HU Wen-juan1, DENG Xiao-hua1, JIN Hui1, WU Jian-hui2, LIU Xiang-yun2, SUN Zu-yue2   

  1. 1Shanghai Pudong New Area People's Hospital, Shanghai 201200, China;
    2Department of Pharmacology and Toxicology, Shanghai Institute of Planned Parenthood Research National Evaluation Center for the Toxicology of Fertility Regulation Drugs, Shanghai 200032, China
  • Received:2011-03-08 Revised:2011-04-20 Published:2011-06-22

摘要: 目的: 观察脊髓凋亡细胞,明确环磷酰胺对SD大鼠胎仔脊髓神经细胞凋亡作用。 方法: 大鼠胚胎-胎仔发育毒性试验中,妊娠第10天给予尾静脉注射不同剂量环磷酰胺(7.2 mg/kg 和 9.0 mg/kg),于妊娠第20天解剖将胎仔脊髓制成病理切片,并行HE和免疫组化染色。 结果: 实验结果显示实验组脊髓神经出现大量凋亡细胞;与生理盐水组胎仔胸髓和腰髓前角细胞的Bax和Bcl-2表达比较,环磷酰胺低剂量组胎仔胸髓和腰髓前角细胞的Bax表达明显增强,Bcl-2蛋白表达减弱。 结论: 在大鼠孕第10天给予 7.2 mg/kg 环磷酰胺尾静脉注射,其对大鼠胎仔脊髓神经细胞凋亡有促进作用。

关键词: 安全评价, 环磷酰胺, 致畸试验, 脊髓畸形, 细胞凋亡

Abstract: AIM: To observe the apoptotic cells of fetal spinal cord and define apoptosis of spinal cord by cyclophosphamide and make initial investigation in mechanism. METHODS: During the embryo-fetal development toxicity test, the CP experimental group was injected with CP 7.2 mg/kg and 9.0 mg/kg in the morning of day 10 of gestation;dissected pregnant rats on the day 20 of gestation for fetal spinal cord which were made HE staining and immunohistochemistry. RESULTS: A great quantity of apoptosis cells were observed in experimental group. Compared with negative control physiologic saline group, Bax expression in thoracic cord and isthmus cord anterior horn cell of low-dose CP group increased significantly (P<0.01), and Bcl-2 expression in thoracic cord and isthmus cord anterior horn cell of low-dose CP group are lower (P<0.05). CONCLUSION: These findings suggested that rats injected with CP 7.2 mg/kg in the morning of day 10 of gestation which can aggravate the apoptosis of fetuses' spinal nerves.

Key words: Safety evaluation, Cyclophosphamide(CP), Teratotoxicity test, Spina bifida, Apoptosis

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