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中国临床药理学与治疗学 ›› 2020, Vol. 25 ›› Issue (4): 373-379.doi: 10.12092/j.issn.1009-2501.2020.04.004

• 基础研究 • 上一篇    下一篇

阿片受体影响雄性睾酮分泌的外周机制研究

南海函1,周江平2,黄坚坚2,郝欣蕊2,崔燕华2,陈星驰2,林 函2   

  1. 1温州医科大学检生学院,温州 325035,浙江; 2温州医科大学附属第二医院育英儿童医院麻醉科,温州 325000,浙江
  • 收稿日期:2019-11-18 修回日期:2020-03-13 出版日期:2020-04-26 发布日期:2020-05-12
  • 通讯作者: 林函,男,博士,教授,研究方向:麻醉药对神经与生殖内分泌的影响。 Tel: 15868710831 E-mail:nanlinhannansh@qq.com
  • 作者简介:南海函,男,博士,副教授,研究方向:药物化学研究。 Tel: 13588941040 E-mail:nanhh@163.com
  • 基金资助:
    国家自然科学基金项目(81471448);温州市科技局项目(Y20140656,Y20180119)

Research of peripheral mechanism of opioid receptor on testosterone secretion

NAN Haihan1, ZHOU Jiangping2, HUANG Jianjian2, HAO Xinrui2, CUI Yanhua2, CHEN Xingchi2, LIN Han2   

  1. 1School of Laboratory Medicine and Life Science, Wenzhou Medical University, Wenzhou 325035, Zhejiang, China; 2Department of Anesthesiology, the Second Affiliated Hospital & Yuying Children's Hospital of Wenzhou Medical University, Wenzhou 325000, Zhejiang, China
  • Received:2019-11-18 Revised:2020-03-13 Online:2020-04-26 Published:2020-05-12

摘要: 目的:研究阿片μ受体对雄性睾酮的影响和外周机制。方法:通过在体动物模型的睾丸内吗啡注射和离体培养睾丸组织的特异性μ受体拮抗剂和激动剂处理,检测血浆、培养基和睾丸匀浆睾酮水平、睾丸匀浆睾酮合成酶mRNA水平、睾丸匀浆胰岛素样生长因子1(IGF1)蛋白和mRNA表达水平。结果:睾丸内注射吗啡后血清睾酮水平下降[(722.11±121.02)vs. (346.91±75.31) pg/mL;t=7.898,P=0.001],睾丸匀浆中的睾酮水平下降[(133.61±16.82)vs. (66.56±14.96) pg/mg总蛋白;t=8.941,P=0.001],同时下调睾酮合成酶的表达;吗啡睾丸内注射显著降低睾丸内IGF1蛋白[(7.93±2.13)vs. (2.54±0.74) ng/mg总蛋白,t=7.155,P=0.001]和mRNA[(3.22±1.12) vs. (1.66±0.55),t=3.751,P=0.001]的表达。睾丸体外培养模型中阿片μ受体特异性的激动剂(DAMGO)下调培养基的睾酮水平及睾丸匀浆合成酶、IGF1的表达;阿片μ受体抑制剂(CTOP)则上调睾酮水平及合成酶、IGF1的表达。结论:阿片类药物作用于睾丸Sertoli细胞(支持细胞)表面的阿片μ受体,抑制IGF1的合成,进而减少睾丸Leydig细胞(间质细胞)睾酮合成酶Scarb1(清道夫受体B1)、Star(类固醇合成快速调节蛋白)、3βHsd(3-羟基-5类固醇脱氢酶)、Cyp17α1(17α-羟化酶)和17βHsd(17β羟基固醇脱氢酶)的表达,最终导致睾酮合成减少。

关键词: 阿片受体, 睾酮, 外周机制

Abstract: AIM: To investigate the effect of opioid μ receptor on testosterone and its peripheral mechanism.  METHODS: Levels of testosterone and testosterone synthetase mRNA in testis plasma and testis homogenate, IGF1 protein and mRNA expression in testis homogenate were detected by intratesticular morphine injection in vivo animal model and treatment of specific μ receptor antagonists and agonists in vitro cultured testis. RESULTS:Serum testosterone level was decreased after testis was injected with morphine [(722.11±121.02) vs. (346.91±75.31) pg/mL; t=7.898, P=0.001]. Testis homogenate testosterone level [(133.61±16.82) vs. (66.56±14.96) pg/mg protein; t=8.941, P=0.001] and expression of testosterone synthetase were decreased. Testis IGF1 level [(7.93±2.13) vs. (2.54±0.74) ng/mg protein, t=7.155, P=0.001] and IGF1 mRNA [(3.22±1.12) vs. (1.66±0.55), t=3.751, P=0.001] expression were decreased in intratesticular morphine injection model. Testosterone level in culture media, IGF1 and expression of testosterone synthetase were decreased after testis was injected with DAMGO in vitro model. And testosterone level, IGF1 and expression of testosterone synthetase were increased after testis was injected with CTOP.CONCLUSION: Morphine acts on opioid μ receptor on the surface of testicular Sertoli cells and inhibits the synthesis of IGF1. It decreases expression of testosterone synthetase Scarb1, Star, 3βHsd, Cyp17α1 and 17βHsd from testicular Leydig cells. which leads to a decrease in testosterone synthesis.

Key words: opioid receptors, testosterone, peripheral mechanism

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