目的 探討生長抑素類似物SMS201995 (SMS) 對人膽管癌細胞體外增殖和凋亡的調(diào)控作用。方法采用人膽管癌細胞系SKChA1,應用生長曲線、流式細胞儀、片段DNA瓊脂糖凝膠電泳、Annexin VFITC技術及流式細胞儀間接免疫熒光技術等方法進行檢測和觀察。結果在SMS 作用下,SKChA1細胞生長受到抑制,短時使細胞阻滯于G0/G1期。SMS處理SKChA1細胞后, Annexin VFITC標記的凋亡細胞增多, DNA凝膠電泳顯示典型的凋亡梯狀圖譜,同時SMS可使細胞bcl2蛋白表達下降,使bax蛋白表達升高。結論SMS 可明顯抑制SKChA1細胞生長,并能誘導該細胞凋亡。該細胞凋亡機理可能與凋亡調(diào)控基因bax和bcl2的表達有關。
引用本文: 陳華,何振平,馬寬生,王曙光. 生長抑素類似物對人膽管癌細胞增殖和凋亡的影響. 中國普外基礎與臨床雜志, 2002, 9(3): 164-167. doi: 復制
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- 2. Shih SC, Stutman O. Cell cycledependent tumor necrosis factor apoptosis [J]. Cancer Res,1996; 56(7)∶1591.
- 3. Teplan I. Peptides and antitumor activity. Development and investigation of some peptides with antitumor activity [J]. Acta Biol Hung, 2000; 51(1)∶1.
- 4. Dancygier H, Klein U, Leuschner U, et al. Somatostatincontaining cells in the extrahepatic biliary tract of humans [J]. Gastroenterology,1984; 86(5 Pt 1)∶892.
- 5. Pagliacci MC. Inhibition of human breast cancer cell (MCF7) growth in vitro by the somatostain analog SMS201995: effects on cell cycle parameters and apoptotic cell death [J]. Endocrinology, 1991; 129(5)∶2555.
- 6. Cheung NW, Boyages SC. Somatostatin14 and its analog octreotide exert a cytostatic effect on GH3 rat pituitary tumor cell proliferation via a transient G0/G1 cell cycle block [J].Endocrinology,1995; 136(10)∶4174.
- 7. 劉戰(zhàn)培, 嚴律南. Bcl2蛋白在肝細胞肝癌發(fā)生過程中的表達及其與肝細胞凋亡變化的關系 [J]. 中國普外基礎與臨床雜志, 1999; 6(4)∶193.
- 8. Brinder C, Marx D, Binder L, et al. Expression of bax in relation to bcl2 and other predictive parameters in breast cancer [J].Ann Oncol,1996; 7(2)∶129.