Description:HMEC240L cells were grown in standard 8 well MEMA for 72h and then fixed using 2% paraformaldehyde. Cells were stained with DAPI (nuclei), KRT5(basal lineage), KRT19(luminal lineage) and EdU(Active S phase). The cells were imaged on a Nikon HCA microscopy system, segmented with Cell Profiler, normalized using RUV and lowess using the spatial residuals as controls, and analyzed to identify microenvironment conditions that altered phenotypes of interest.