28 Mehner Mehner C C Hockla Hockla A A Miller Miller E E Ran Ran S S Radisky Radisky DC DC Radisky Radisky ES ES Tumor cell-produced matrix metalloproteinase 9 (MMP-9) drives malignant progression and metastasis of basal-like triple negative breast cancer Tumor cell-produced matrix metalloproteinase 9 (MMP-9) drives malignant progression and metastasis of basal-like triple negative breast cancer Oncotarget Oncotarget 2014 2014 5 5 2736 2736 49 49 10.18632/oncotarget.1932 10.18632/oncotarget.1932 24811362 24811362. Here, MMP9 is linked to triple-negative breast carcinoma.