[摘要] 目的 觀察姜黃素對膀胱腫瘤T24細胞中胰島素樣生長因子-1(IGF-1)表達的影響。方法 用不同濃度的姜黃素作用于膀胱腫瘤細胞株T24,用MTT法測定細胞抑制率,用流式細胞儀測定細胞凋亡結果,用RT-PCR測定不同姜黃素濃度對腫瘤細胞株胰島素樣生長因子-1(IGF-1)及胰島素樣生長因子-1受體(IGF-1R)mRNA表達量的影響。結果 姜黃素對膀胱腫瘤細胞株的作用具有時間和劑量依從性,姜黃素能夠誘導膀胱腫瘤細胞株凋亡,姜黃素可使腫瘤細胞株的IGF-1 mRNA表達量降低。結論 姜黃素可能會通過胰島素樣生長因子-1(IGF-1)通路抑制膀胱腫瘤T24細胞的生長,促進其凋亡。
[關鍵詞] 膀胱腫瘤; 姜黃素; 胰島素樣生長因子-1(IGF-1)
[中圖分類號] R737.14 [文獻標識碼] A [文章編號] 1673-9701(2009)13-36-02
The Effect of Curcumin on Insulin-like Growth Factor-1 Action in T24 Human Bladder Tumor Cells
GUO Zhiqiang1 LIU Hongyao1 ZHANG Huaping2 XING Tao1
1.The First Hospital of Shanxi Medical University;2.Shanxi Medical University,Taiyuan 030001
[Abstract] ObjectiveTo observe the effect of curcumin on insulin-like growth factor-1 action in T24 human bladder tumor cells. MethodsThe bladder tumor cell lines were administered differ concentration of curcumin. The rate of cell inhibition,the rate of apoptosis and express of IGF-1and IGF-1R mRNA were determined with MTT,flow cytometer and RT-PCR,respectively. ResultsEither the rate of cell inhibition or the rates of apoptosis depend on the curcumin dose and the action time of curcumin. The quantity IGF-1 mRNA was reduced when the curcumin doses increased. ConclusionThe curcumin can depress the growth and enhance the apoptosis on insulin-like growth factor-1 action in T24 human bladder tumor cells.
[Key Words]Bladder neoplasm; Curcumin; Insulin-like growth factor-1
胰島素樣生長因子家族(Insulin-like Growth Factor,IGFs)是一類具有促進細胞增殖、分化以及血管形成等多種生物活性的多肽生長因子,IGF-1及其IGF-1R是該家族的重要成員,兩者與多種腫瘤的發生、發展有密切關系。姜黃素(Curcumin)是從姜科植物中提取的一種酚性色素,在其他腫瘤治療性研究中表明,與以往化學治療藥物較單一的作用途徑相比,它具有抗氧化、抗突變、抗促癌和抗炎癥等多方面的作用。但有關姜黃素的機制方面,特別是對膀胱腫瘤IGF-1通路影響的研究鮮有報道。本文初步探討了姜黃素在膀胱腫瘤中對IGF-1通路的作用。
1 材料與方法
1.1 材料
1.1.1 細胞株 膀胱癌細胞株T24人膀胱移形細胞癌細胞,購自中國科學院上海細胞生化所。
1.1.2 實驗設備及儀器 超凈工作臺,蘇州市漢達工業自動化有限公司;……