DKK1 inhibits breast cancer cell migration and invasion through suppression of β-catenin/MMP7 signaling pathway

Cancer Cell International

Xiao Wang¹  Hua Sun¹  Xiao-Meng Li¹  Song-Qiang Xie¹  Jie Niu¹  Hai-Ying Li¹  Fan-Ye Liu¹  Chao Liang¹  Yi-Dan Zhang¹  Dong Fang¹ 

[1] Institute for Innovative Drug Design and Evaluation, School of Pharmacy, Henan University;

关键词: DKK1;    β-Catenin;    MMP7;    Breast cancer;    Migration and invasion;   

DOI  :  10.1186/s12935-019-0883-1

来源: DOAJ

【 摘 要 】

Abstract Background DKK1 has been reported to act as a tumor suppressor in breast cancer. However, the mechanism of DKK1 inhibits breast cancer migration and invasion was still unclear. Methods Western blot and real time PCR was used to detect the expression of DKK1, β-catenin and MMP7 in breast cancer cells. Wound scratch assay and transwell assay was employed to examine migration and invasion of breast cancer cell. Results DKK1 overexpression dramatically inhibits breast cancer cell migration and invasion. Knockdown of DKK1 promotes migration and invasion of breast cancer cells. DKK1 suppressed breast cancer cell migration and invasion through suppression of β-catenin and MMP7 expression. XAV-939, an inhibitor of β-catenin accumulation could reverse DKK1 silencing-induced MMP7 expression in breast cancer cells. Meanwhile, XAV-939 also could reverse the increase in the cell number invaded through Matrigel when DKK1 was knockdown. Furthermore, depletion of MMP7 also could reverse DKK1 knockdown-induced increase in the cell number invaded through Matrigel. Conclusions DKK1 inhibits migration and invasion of breast cancer cell through suppression of β-catenin/MMP7 pathway, our findings offered a potential alternative for breast cancer prevention and treatment.

【 授权许可】

Unknown