GZMM and neoplasm: To test whether miR-200c functionally impacted tumor promoting phenotypes, as miR-200c does in human BC cells26, Met-1 TripZ-EV and Met-1 TripZ-200c cells were evaluated for proliferation (Fig. 2a), growth on soft agar (Fig. 2b), migration (Supplementary Fig. 2a), and invasion (Fig. 2c).