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                SiRNA 干擾Prohibitin 基因表達對人前列腺癌PC-3 細胞生長及凋亡影響
                來源: | 作者: | 發布時間:2014-4-15 17:35:24

                SiRNA 干擾Prohibitin 基因表達對人前列腺癌PC-3 細胞生長及凋亡影響
                董培1,2,蔣麗娟1,郭勝杰1,周芳堅1
                基金項目:高等學校博士學科點專項科研基金(No.20100171120100)
                作者簡介:作者簡介:董培(1978-),男(漢族),廣東湛江人,主治醫師,醫學博士,主要從事泌尿腫瘤臨床及基礎研究
                通信聯系人:周芳堅(1952-),男,主任醫師,泌尿系腫瘤的基礎及臨床研究.

                (1. 華南腫瘤學國家重點實驗室,中山大學腫瘤防治中心泌尿外科, 廣東 廣州 510060;2. 廣東省泌尿外科重點實驗室 (2010A060801016),廣東 廣州 510060)
                摘要: 目的:觀察RNAi 抑制前列腺癌PC-3 細胞中的PHB 表達對細胞增殖、凋亡影響,探討PHB 對人前列腺癌的可能作用機制。方法:SiRNA 基因沉默PC-3 細胞中PHB 基因, Annexin V/PI 雙染和流式細胞計數觀察NM 和CDM 培養下及分別給予血小板源性生長因子PDGF 或EGF10 刺激的前列腺癌凋亡細胞數目差別 。結果:流式細胞儀(FCM)檢測發現,在siRNA 抑制PC-3細胞中的PHB 后,CDM 實驗組細胞凋亡率顯著增加,同NM 對照組比較有顯著性差異(p<0.05 );在CDM 組給予PDGF 或EGF 后,細胞凋亡率升高,與NM 對照組相比較有顯著性差異(p <0.05 )。結論:低膽固醇培養條件下前列腺癌細胞生長抑制,給予生長刺激因子促進細胞凋亡,低膽固醇抑制前列腺癌PC-3 細胞體外增殖活性可能同PHB 表達升高有關。
                關鍵詞:Prohibitin,RNAi,前列腺癌細胞,膽固醇,細胞凋亡
                中圖分類號:請查閱《中國圖書館分類法》
                Effects of SiRNA prohibitin expression on proliferation and apoptosis in human prostate carcinoma PC-3 cells.
                20 dongpei1,2, jianglijuan1, guoshengjie1, zhoufangjian1
                (1. State Key Laboratory of Oncology in Southern China, Department of Urology, Cancer Center,Sun Yat-sen University, Guangzhou, Guangdong, 510060, China;2. Guangdong Key Laboratory of Urology,The first affiliated Hospital of Guangzhou medical University, Guangzhou, Guangdong, 510060)
                25 Abstract: Objective:To observe the effects of RNAi inhibit PHB on cell growth,and apoptosis in Pc-3 cells.Explore the possible molecular mechanism of PHB on human prostate cancer.Methods:SiRNA knockdown PHB in PC-3 cells and treated cells with NM or CDM added/or not PDGF /EGF.Apoptosis was determined by Annexin V/PI double staining technique and flow cytometry.Results:Annexin V/PI double staining and flow cytometry discovered that after using siRNA knockdowned 30 PHB in PC-3 cells,PC-3 cells apoptosis rate of cultured in CDM was significantly higher than cells cultured in NM(p<0.05).Addred PDGF or EGF into CDM can upon apoptosis rate(p<0.05 ).Conclusions:Cholesterol depleted conditions can induce apoptosis in PC-3 cells.Cholesterol depleted conditions add growth factors can promote apoptosis in PC-3 cells.
                Key words: Prohibitin; RNAi;Prostate carcinoma cells; Cholesterol;Apoptosis

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