Abstract
Doublecortin like kinase 1 (DCLK1) was observed overexpressed in several types of human cancers, and played a functional role in tumorigenicity, but little is known about the biological function of DCLK1 in basal-like breast cancer. In our results, the expressions of DCLK1 mRNA and protein were elevated in basal-like breast cancer tissues and cell lines. DCLK1 high-expression associated with clinical stage, lymph node metastasis, distant metastasis and histological grade. DCLK1 high-expression was an independent unfavorable prognostic factor for basal-like breast cancer patients. The biological experiments suggested knockdown of DCLK1 induced inhibition of basal-like breast cancer cells proliferation, migration and invasion. In conclusion, DCLK1 serves as a prognostic biomarker for basal-like breast cancer and a potential therapeutic target for basal-like breast cancer.
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