GUO Bian-qin, et al. Effect of silencing annexin Ⅱ by specific siRNA on invasion and metastasis of human breast cancer cell MDA-MB-231[J]. Journal of Chongqing Medical University, 2009,34(8):984-987.
GUO Bian-qin, et al. Effect of silencing annexin Ⅱ by specific siRNA on invasion and metastasis of human breast cancer cell MDA-MB-231[J]. Journal of Chongqing Medical University, 2009,34(8):984-987.DOI:
Objectives:To investigate the effects of small interference RNA(siRNA) silencing Annexin Ⅱ on invasion and metastasis of human breast cancer cell MDA-MB-231.Methods:The chemically-synthetic siRNA duplexes targeting Annexin Ⅱ(Annexin Ⅱ-siRNA) was transiently transfected into MDA-MB-231 cells which have high metastatic potential by lipofectamin 2000.The transfection efficiency was observed by fluorescence microscopy.RT-PCR and western blot were used to semi-quantify the Annexin Ⅱ mRNA and protein levels.The malignant characters of transfected MDA-MB-231 cells including celluar proliferation rate
the activities of invasion and metastasis were analyzed by use of 3-(4
5-dimethylthiazol-2-yl)-5-diphenyl tetrazolium bromide(MTT) and millicell chamber assay
respectivilly.Results:Annexin Ⅱ-siRNA effectively inhibited Annexin Ⅱ mRNA and protein levels(P<0.05).With siRNA interferring cells
the ability of cells proliferation was decreased(P<0.05)
and cells invasive and metastasis were depressed(P<0.05).Conclusion:Silencing Annexin Ⅱ could significantly inhibit the abilities of invasion and metastasis of human breast cancer cells MDA-MB-231 in vitro.
关键词
RNA干扰乳腺癌Annexin Ⅱ侵袭转移
Keywords
RNA interferencebreast cancerAnnexinⅡinvasion and metastasis