摘要
OBJECTIVE To study the changes in the matrix metalloproteinases-2 and 9 （MMP2, MMP9） induced by ^60Co γ-ray external irradiation of human prostate cancer PC-3 cells. METHODS Human prostate cancer PC-3 cells were irradiated with different doses of ^60Co γ-rays. Cell migration and invasiveness were evaluated and the expression of MMP2, and MMP9 was investigated by RT-PCR, Western blotting and flow cytometry（FCM）. RESULTS Irradiation enchances invasive protential at the doses of 1,3 and 5 Gy,whereas it significantly inhibits cell migration. CONCLUSION The different doses of ^60Co γ-ray external irradiation for prostate cancer may have different effects through the changes of MMP2, and MMP9 expression.
OBJECTIVE To study the changes in the matrix metalloproteinases-2 and 9(MMP2,MMP9)induced by 60Coγ-ray external irradiation of human prostate cancer PC-3 cells. METHODS Human prostate cancer PC-3 cells were irradiated with different doses of 60Coγ-rays.Cel migration and invasiveness were evalu- ated and the expression of MMP2,and MMP9 was investigated by RT-PCR, Western blotting and flow cytometry(FCM). RESULTS Irradiation enchances invasive protential at the doses of 1,3 and 5 Gy,whereas it significantly inhibits cell migration. CONCLUSION The different doses of 60Coγ-ray external irradiation for prostate cancer may have different effects through the changes of MMP2, and MMP9 expression.
