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中国临床药理学与治疗学 ›› 2017, Vol. 22 ›› Issue (6): 617-621.

• 基础研究 • 上一篇    下一篇

子宫内膜异位症模型大鼠背根神经节神经元中TRPV1、TRPA1表达及其意义

刘建刚, 王晓波   

  1. 浙江大学附属妇产科医院,杭州 310000,浙江
  • 收稿日期:2017-04-13 修回日期:2017-04-25 出版日期:2017-06-26 发布日期:2017-06-26
  • 通讯作者: 浙江省自然科学青年基金(LQ13H040001)
  • 作者简介:刘建刚,男,博士,主治医师,研究方向:子宫内膜异位症疼痛的治疗。 Tel:13806515619 E-mail:zjugang@163.com
  • 基金资助:

    浙江省自然科学青年基金(LQ13H040001)

Expression and significance of TRPV1 and TRPA1 in DRG neurons of rats with endometriosis

LIU Jiangang, WANG Xiaobo   

  1. Affiliated Hospital of Obstetrics and Gynecology, Zhejiang University, Hangzhou 310000, Zhejiang, China
  • Received:2017-04-13 Revised:2017-04-25 Online:2017-06-26 Published:2017-06-26

摘要:

目的: 探讨子宫内膜异位症模型大鼠背根神经节(DRG)神经元中瞬时受体电位通道蛋白V1(TRPV1)、瞬时受体电位通道蛋白A1(TRPA1)表达及其意义。方法: 选取雌性、成熟未交配Sprague-Dawley健康大鼠40只,分为模型组和假手术组,模型组采用自体移植方法建立子宫内膜异位症大鼠模型,假手术组仅做开腹手术。分别检测DRG中TRPV1、TRPA1表达情况,并使用TRPV1、TRPA1拮抗剂处理两组大鼠,观察其热板法痛阈、甩尾潜伏期变化。结果: 模型组大鼠TRPV1、TRPA1表达阳性率明显高于假手术组(P<0.05)。术前,两组大鼠热板法痛阈、甩尾潜伏期相近(P﹥0.05)。术后,模型组大鼠热板法痛阈、甩尾潜伏期较术前明显减小(P<0.05),模型组大鼠热板法痛阈、甩尾潜伏期明显小于假手术组(P<0.05)。使用TRPV1、TRPA1拮抗剂前,两组大鼠热板法痛阈、甩尾潜伏期相近(P>0.05)。使用TRPV1、TRPA1拮抗剂后,两组大鼠热板法痛阈、甩尾潜伏期相近(P>0.05),模型组大鼠使用TRPV1、TRPA1拮抗剂前后,热板法痛阈、甩尾潜伏期无明显变化(P>0.05)。结论: TRPV1、TRPA1在子宫内膜异位症模型大鼠中高表达,使用TRPV1、TRPA1拮抗剂降低子宫内膜异位症模型大鼠TRPV1、TRPA1表达,降低大鼠对痛觉的敏感性。

关键词: 子宫内膜异位症, 动物模型, 背根神经节神经元, 瞬时受体电位通道蛋白V1, 瞬时受体电位通道蛋白A1

Abstract:

AIM: To investigate the expression and significance of transient receptor potential channel protein V1 (TRPV1) and transient receptor potential channel protein A1 (TRPA1) in dorsal root ganglion (DRG) neurons in rats with endometriosis. METHODS: Female, mature unmated Sprague-Dawley healthy 40 rats were divided into model group and sham operation group. Model group underwent autologous transplantation methods to establish the rat model of endometriosis, while the sham operation group underwent open surgery. The expressions of DRG TRPV1 and TRPA1 were detected. And the hot plate pain threshold and tail flick latency change of rats were observed. RESULTS:The positive expression rates of TRPV1 and TRPA1 in the model group were significantly higher than those in the sham operation group (P<0.05). Before the operation, hot plate pain threshold and tail flick latency of two groups were similar (P>0.05); after the operation, the hot plate pain threshold and tail flick latency of rats in the model group decreased significantly (P<0.05), and were significantly less than those in the sham operation group (P<0.05). Before the TRPV1, TRPA1 antagonists treatment, the hot plate pain threshdd and tail flick latency were similar in the two groups (P>0.05), and after the antagonists treatment, the results were the same. In the model group, before and after the use of TRPV1, TRPA1 antagonist, hot plate pain threshold, tail flick latency had no significant change (P>0.05). CONCLUSION: TRPV1 and TRPA1 are highly expressed in the rat model of endometriosis, and the expression of TRPV1 and TRPA1 in the rat model of endometriosis can be decreased by using TRPV1 and TRPA1 antagonist, and the sensitivity to pain is decreased.

Key words: endometriosis, animal model, dorsal root ganglion neurons, transient receptor potential channel protein V1, transient receptor potential channel protein A1

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