目的研究VEGF及KDR在实验性左侧精索静脉曲张4周组及8周组大鼠睾丸中的表达变化,探讨它们与精索静脉曲张(VC)的关系及VC致男性不育的病理生理学机制。方法建立大鼠实验性左侧精索静脉曲张模型,于术后4周和8周取双侧睾丸,采用免疫组织化...目的研究VEGF及KDR在实验性左侧精索静脉曲张4周组及8周组大鼠睾丸中的表达变化,探讨它们与精索静脉曲张(VC)的关系及VC致男性不育的病理生理学机制。方法建立大鼠实验性左侧精索静脉曲张模型,于术后4周和8周取双侧睾丸,采用免疫组织化学SP法检测VEGF、KDR在实验组和对照组SD大鼠睾丸上的表达情况。结果 ELV 4周组大鼠两侧睾丸中VEGF蛋白表达均上调,8周组表达均下降;ELV4周组大鼠睾丸中KDR蛋白的表达与对照组比较显著增强,而8周组比对照组和4周组均显著降低。结论 VEGF和KDR在睾丸中的表达明显受到ELV进程的影响,说明它们在VC致男性不育中起到一定的作用。展开更多
Objective: To detect the expression of KDR in different originated carcinomas and to explore its expressed ways and the relationship with tumor progression. Methods : KDR cDNA (V VII domains) fragment wa...Objective: To detect the expression of KDR in different originated carcinomas and to explore its expressed ways and the relationship with tumor progression. Methods : KDR cDNA (V VII domains) fragment was cloned from human umbilical vein with RT PCR and was expressed in Ecoli.Jm109. The fusion protein of GST KDR was used for immunizing Balb/c mice to prepare monoclonal antibodies against KDR. The different tumor tissues and related normal tissues were examined with KDR McAb by S P immuno histochemistry. Results: the rate and intensification of KDR expression among different originated cancers are very different, bladder cancers from transmigrated epidermis are 100% positive and highest intensification. The expression of KDR in breast cancer and intestinal cancer lie in the second rate, the weakest expression of KDR is in lung squamous carcinoma. Moreover, expression of KDR in tumor tissues lie both in endothelial cells (EC) of tumor blood vessels and tumor cells. Conclusion: VEGF may be not only the para secretory factor making EC proliferation but also auto secretory factor stimulating the proliferation of tumor cells to benefit the growth and metastasis of malignant tumors. The different expression of KDR in different originated carcinomas may relate with malignant degree of tumor.展开更多
文摘目的研究VEGF及KDR在实验性左侧精索静脉曲张4周组及8周组大鼠睾丸中的表达变化,探讨它们与精索静脉曲张(VC)的关系及VC致男性不育的病理生理学机制。方法建立大鼠实验性左侧精索静脉曲张模型,于术后4周和8周取双侧睾丸,采用免疫组织化学SP法检测VEGF、KDR在实验组和对照组SD大鼠睾丸上的表达情况。结果 ELV 4周组大鼠两侧睾丸中VEGF蛋白表达均上调,8周组表达均下降;ELV4周组大鼠睾丸中KDR蛋白的表达与对照组比较显著增强,而8周组比对照组和4周组均显著降低。结论 VEGF和KDR在睾丸中的表达明显受到ELV进程的影响,说明它们在VC致男性不育中起到一定的作用。
文摘Objective: To detect the expression of KDR in different originated carcinomas and to explore its expressed ways and the relationship with tumor progression. Methods : KDR cDNA (V VII domains) fragment was cloned from human umbilical vein with RT PCR and was expressed in Ecoli.Jm109. The fusion protein of GST KDR was used for immunizing Balb/c mice to prepare monoclonal antibodies against KDR. The different tumor tissues and related normal tissues were examined with KDR McAb by S P immuno histochemistry. Results: the rate and intensification of KDR expression among different originated cancers are very different, bladder cancers from transmigrated epidermis are 100% positive and highest intensification. The expression of KDR in breast cancer and intestinal cancer lie in the second rate, the weakest expression of KDR is in lung squamous carcinoma. Moreover, expression of KDR in tumor tissues lie both in endothelial cells (EC) of tumor blood vessels and tumor cells. Conclusion: VEGF may be not only the para secretory factor making EC proliferation but also auto secretory factor stimulating the proliferation of tumor cells to benefit the growth and metastasis of malignant tumors. The different expression of KDR in different originated carcinomas may relate with malignant degree of tumor.
