Before revision:  In this study, we develop an in vitrovascularized tumor platform that allows for investigation of tumor-stromal interactions in three breast tumor derived cell lines of varying aggressiveness: MDA-IBC3, SUM149, and  MDA-MB-231 .
After revision:  In this study, we developed the first three-dimensional, in vitro, vascularized, breast tumor platform to quantify the spatial and temporal dynamics of tumor-vasculature and MDA-MB-231 .