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网络首发:2012-11-20,
纸质出版:2012
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王天宝. Lenti-CXCR4-siRNA慢病毒对SW480结肠癌细胞株生长与侵袭的影响[J]. 中山大学学报(医学科学版), 2012,33(6).
Influence of Lenti-CXCR4-siRNA Lentivirus to Growth and Invasionof SW480 Colorectal Cell[J]. Journal of Sun Yat-sen University (Medical Sciences), 2012, 33(6).
王天宝. Lenti-CXCR4-siRNA慢病毒对SW480结肠癌细胞株生长与侵袭的影响[J]. 中山大学学报(医学科学版), 2012,33(6). DOI:
Influence of Lenti-CXCR4-siRNA Lentivirus to Growth and Invasionof SW480 Colorectal Cell[J]. Journal of Sun Yat-sen University (Medical Sciences), 2012, 33(6). DOI:
【目的】 探讨Lenti-CXCR4-siRNA慢病毒对结肠癌细胞株SW480生长、迁移与侵袭的抑制作用。【方法】 应用我们已构建的Lenti-CXCR4-siRNA慢病毒转染SW480细胞,检测CXCR4 RNA干扰对CXCR4 RNA 和蛋白的抑制作用,MTS法检测能否抑制细胞增殖,Transwell小室评价对细胞迁移和侵袭的影响。【结果】重组Lenti-CXCR4-siRNA慢病毒转染SW480细胞可见绿色荧光。SW480、阴性对照组及Lenti-CXCR4-siRNA慢病毒组CXCR4 RNA 表达水平分别为0.54 ± 0.06、1.00 ± 0.03和0.11 ± 0.04(P = 0.001); CXCR4蛋白相对表达量分别为0.60 ± 0.03、0.72 ± 0.03和0.18 ± 0.02(P < 0.001);MTS OD值分别为1.38 ± 0.04(P = 0.005)、1.28 ± 0.05(P = 0.026)和0.92 ± 0.06;迁移实验细胞数分别为32.0 ± 6.8、32.6 ± 1.7和0.75 ± 0.71(P < 0.001);侵袭实验细胞数分别为29.1 ± 10.3、30.4 ± 6.1和0.63 ± 0.74(P < 0.001)。【结论】 重组Lenti-CXCR4-siRNA慢病毒可高效抑制SW480细胞CXCR4 RNA和蛋白表达水平,遏制细胞增殖,降低肿瘤细胞迁移和侵袭能力。
【Objective】 To investigate if lenti-CXCR4-siRNA lentivirus which mediates CXCR4 RNA interference (RNAi) could inhibit the growth and invasive capacity of SW480 colorectal cancer cell. 【Methods】 Lenti-CXCR4-siRNA lentivirus transfected SW480. RT-PCR and Western blot was performed to measure the expression of CXCR4 RNA and protein, respectively. The cell proliferation of SW480 was calculated with MTS. Transwell chamber was used to estimate the inhibition effect for growth and invasion of SW480. 【Results】 SW480 transfected lenti-CXCR4-siRNA lentivirus presented green fluorescence. CXCR4 RNA expression levels in SW480, negative control group (NC), and lenti-CXCR4-siRNA group were 0.54 ± 0.06, 1.00 ± 0.03, and 0.11 ± 0.04 (P < 0.001); CXCR4 protein were 0.60 ± 0.03, 0.72 ± 0.03, and 0.18 ± 0.02 (P < 0.001); OD values were 1.38 ± 0.04 (P = 0.005), 1.28 ± 0.05 (P = 0.026), and 0.92 ± 0.06; SW480 cell number in migration test were 32.0 ± 6.8, 32.6 ± 1.7, and 0.75 ± 0.71 (P < 0.001); SW480 cell number in invasion test were 29.1 ± 10.3, 30.4 ± 6.1, and 0.63 ± 0.74 (P < 0.001). 【Conclusion】 Lenti-CXCR4-siRNA lentivirus could effectively inhibit the expression level of CXCR4 RNA and protein, reduce cell proliferation and invasion capacity of SW480 cell.
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