Figure 1From: MicroRNA let-7a suppresses breast cancer cell migration and invasion through downregulation of C-C chemokine receptor type 7Detection of mRNA expression levels of CCR7 and CCL21. CCR7 and CCL21 mRNA expression levels were detected with RT-PCR analysis in seven breast cancer cell lines (a) and five breast cancer patient tissues (b). β-actin was used as a normalization control.Back to article page