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山东大学学报(医学版) ›› 2009, Vol. 47 ›› Issue (8): 107-110.

• 论文 • 上一篇    下一篇

前列腺组织中M受体亚型的表达及意义

袁明振,赵升田,孟彦,葛南,刘玉强,王洪伟,许纯孝   

  1. 山东大学第二医院泌尿外科 山东大学泌尿外科研究所, 济南 250033
  • 收稿日期:2009-02-22 发布日期:2009-08-16
  • 通讯作者: 赵升田(1963- ),男,教授,主任医师,博士生导师。Email:zhaoshengtian@sdu.edu.cn
  • 作者简介:袁明振(1974- ),男,主治医师,博士,主要从事泌尿、男科学的研究。
  • 基金资助:

    山东省优秀中青年科学家科研奖励基金资助课题(2008BS03037)。

Expression of muscarinic receptors in adult human prostatic gland tissues

YUAN Mingzhen, ZHAO Shengtian,  MENG Yan, GE Nan, LIU  Yuqiang, WANG Hongwei, XU Chunxiao   

  1. Department of Urology,  Second Hospital of Shandong University; Institute of Urology, Shandong University, Jinan 250033, China
  • Received:2009-02-22 Published:2009-08-16

摘要:

目的检测不同前列腺组织中M1、M2、M3受体亚型的表达,分析其在前列腺肿瘤发生发展中的作用。方法取正常前列腺、良性前列腺增生(BPH)、前列腺癌标本各36例。采用蛋白免疫印迹(Westernblot)方法分别检测各组标本中M1、M2、M3受体,免疫组织化学染色法检测人白细胞分化抗原34(CD34)的蛋白表达;逆转录聚合酶链反应(RTPCR)检测各组标本中M3受体的基因表达。结果Westernblot检测结果显示,正常前列腺组织中M2受体表达(0.334?8±0.151?5)高于M1与M3(0.18±0.08;0.27±0.11),P<0.001;BPH组织M2与M3受体表达(0.36±0.15;0.37±0.15)高于M1(0.18±0.07), P<0.001,前列腺癌组织中M3受体表达(0.48±0.16)高于M1与M2(0.20±0.05;0.41±0.12),P<0.001;RTPCR结果显示,前列腺癌组织M3受体的基因表达(0.84±0.19)高于BPH组织(0.67±0.16)和正常前列腺组织(0.54±0.16),P<0.001。免疫组化结果显示,CD34蛋白表达在前列腺癌组织微血管密度(44.89±8.43)高于BPH组织(18.44±7.10),在正常前列腺组织表达最低(10.97±4.48),P<0.05。结论M1、M2、M3 3种受体在不同前列腺组织中有不同程度的表达,其中M3受体表达变化最大,与前列腺肿瘤的发生、发展关系密切。

关键词: 前列腺肿瘤;M3受体;CD34蛋白

Abstract:

To explore the relationship between muscarinic receptor subtypes and prostatic tumor by combining assays of expressions of M1,M2,M3 and CD34 in adult human normal and neoplastic prostatic gland tissues.  MethodsSpecimens of 36 normal prostates(fresh), 36 hyperplasticones(fresh), and 36 cancerous ones(8 fresh) were enrolled in this study. Westernblot and an immunohistochemical method were used to determine expressions of M1,M2,M3 and CD34 protein, and RTPCR to determine expression of the M3 gene.  ResultsRTPCR and westernblot revealed that the genetic expression of M3 receptor was similar to that of its protein expression. M3 receptor′s genetic and protein expressions were higher in prostate cancer tissues(0.84±0.19, 0.48±0.16) than in BPH tissues(0.67±0.16, 0.37±0.15), while they were the lowest in normal prostate tissues(0.54±0.16, 0.27±0.11) with significant differences (P<0.05). CD34′s protein expression(MVD) had the same regularity as the M3 receptor did(P<0.05). ConclusionM1,M2,and M3 receptors have different expressions in the three tissues and the M3 receptor is related to the genesis and development of prostatic tumor. The M3 receptor can be used as a new target for treatment of  prostatic carcinoma.

Key words: M3 receptor; Prostatic neoplasms; CD34 protein

中图分类号: 

  • R697.3
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