摘要
目的 探讨地塞米松(DEX)对人类喉鳞状细胞癌原代细胞血管内皮生长因子-C(VEGF-C)、VEGF受体-3(VEGFR-3)基因表达的影响.方法 12例喉癌患者喉癌原代细胞培养成功后分两组,孵育至对数生长期,一组继续培养,另一组给予DEX 0.1μmol/L,37℃,5% CO2孵箱孵育24 h,用RT-PCR检测其VEGF-C、VEGFR-3在两组中的基因表达情况.结果 VEGF-C、VEGFR-3在喉癌原代培养细胞表达阳性率分别为83%、58%,DEX干预组喉癌原代培养细胞表达阳性率分别25%、8%,VEGF-C、VEGFR-3在喉癌细胞中的表达显著高于DEX作用组(P＜0.05).结论 DEX作用于人类喉鳞状细胞癌原代细胞,可导致VEGF-C、VEGFR-3的表达降低.可能为临床喉癌化疗及喉癌喉梗阻应用DEX提供理论依据.
Objective To explore the effect of VEGF-C,VEGFR-3 gene in primary culture in vitro of laryngeal squamous carcinoma tissue by dexamethasone (DEX). Methods Applying the technique of Drimary tissue cuiture in vitro,twelve specimens,which were identified pathologically as laryngeal squamous cell carcinoma,were cultured.After succeeded culture of twelve specimens,the cells were divided in to two groups.One continued to cuhum,another gave 10-7 mol/L of DEX.VEGF-C and VEGFR-3 gene express in 12 cases of cell were examined by reverse transcription polymerase chain reactions(RT-PCR).Results The frequency of VEGF-C(83%) and VEGFR-3(58%) in primary culture in wtro of laryngeal squamous carcinoma tissue were higher than that of the primary culture in vitro of laryngeal squamous carcinoma tissue by dexamethasone (DEX) (25%,8%P＜0.05).Conclusion The expressions of VEGF-C and VEGFR-3 in Drimary culture in vitro of laryngeal squamous carcinoma tissue by DEX are decreased.It may provide guide to apply DEX in clinic laryngeal squamous carcinoma chemotherapy and laryngeal squamous carcinoma laryngeal obstruction.
出处
《肿瘤研究与临床》
CAS
2008年第3期168-171,共4页
Cancer Research and Clinic
基金
国家自然科学基金资助项目(30271399)
