Expression of N-myc downstream regulated gene 1 in breast invasive duct carcinoma and its relationship with tumor metastasis and invasive potential / 上海第二医科大学学报

Objective To study the correlation of expression of N-myc downstream regulated gene 1(NDRG1) with invasion of breast invasive duct carcinoma and lymph node metastasis. Methods A total of 71 specimens including 26 case of primary breast invasive duct carcinoma with lymphnode metastasis,45 case of nonmetastasis breast invasive duct carcinoma were observed.NDRG1 was detected by immunohistochemistry in formalin-fixed and paraffin-embedded sections.At the same time,the correlations of NDRG1 with E-cad,MMP2,MMP9,and TIMP2 were investigated. Results The expression of NDRG1 in breast cancer with metastasis of lymph nodes(9/26) was lower than that of non-metastasis of lymph nodes(32/45)(P